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# Sphinx build info version 1
# This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
config: 75e1127d00dbe20591014a35dfa60c2b
tags: 645f666f9bcd5a90fca523b33c5a78b7

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Page not found &#8212; SearXNG Documentation (2022.06.15-5f06df2c)</title>
<link rel="stylesheet" type="text/css" href="/_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="/_static/searxng.css" />
<link rel="stylesheet" type="text/css" href="/_static/tabs.css" />
<script data-url_root="#" id="documentation_options" src="/_static/documentation_options.js"></script>
<script src="/_static/jquery.js"></script>
<script src="/_static/underscore.js"></script>
<script src="/_static/doctools.js"></script>
<script src="/_static/tabs.js"></script>
<link rel="index" title="Index" href="/genindex.html" />
<link rel="search" title="Search" href="/search.html" />
</head><body>
<div class="related" role="navigation" aria-label="related navigation">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="/genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="/py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="nav-item nav-item-0"><a href="/index.html">SearXNG Documentation (2022.06.15-5f06df2c)</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Page not found</a></li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<h1>Page not found</h1>
Unfortunately we couldn't find the content you were looking for.
<div class="clearer"></div>
</div>
</div>
</div>
<span id="sidebar-top"></span>
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
<div class="sphinxsidebarwrapper">
<p class="logo"><a href="/index.html">
<img class="logo" src="/_static/searxng-wordmark.svg" alt="Logo"/>
</a></p>
<h3><a href="/index.html">Table of Contents</a></h3>
<p class="caption" role="heading"><span class="caption-text">Contents</span></p>
<ul>
<li class="toctree-l1"><a class="reference internal" href="/user/index.html">User information</a></li>
<li class="toctree-l1"><a class="reference internal" href="/own-instance.html">Why use a private instance?</a></li>
<li class="toctree-l1"><a class="reference internal" href="/admin/index.html">Administrator documentation</a></li>
<li class="toctree-l1"><a class="reference internal" href="/dev/index.html">Developer documentation</a></li>
<li class="toctree-l1"><a class="reference internal" href="/utils/index.html">Admin’s tooling box</a></li>
<li class="toctree-l1"><a class="reference internal" href="/src/index.html">Source-Code</a></li>
</ul>
<h3>Project Links</h3>
<ul>
<li><a href="https://github.com/f5ociety/Trydex/tree/master">Source</a>
<li><a href="https://github.com/searxng/searxng/wiki">Wiki</a>
<li><a href="https://searx.space">Public instances</a>
<li><a href="https://github.com/f5ociety/Trydex/issues">Issue Tracker</a>
</ul><h3>Navigation</h3>
<ul>
<li><a href="/index.html">Overview</a>
</li>
</ul>
<div id="searchbox" style="display: none" role="search">
<h3 id="searchlabel">Quick search</h3>
<div class="searchformwrapper">
<form class="search" action="/search.html" method="get">
<input type="text" name="q" aria-labelledby="searchlabel" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"/>
<input type="submit" value="Go" />
</form>
</div>
</div>
<script>$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="footer" role="contentinfo">
&#169; Copyright 2021 SearXNG team, 2015-2021 Adam Tauber, Noémi Ványi.
Created using <a href="https://www.sphinx-doc.org/">Sphinx</a> 4.5.0.
</div>
<script src="/_static/version_warning_offset.js"></script>
</body>
</html>

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docs.searxng.org

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node [style=filled, shape=box, fillcolor="#ffffcc", fontname="Sans"];
edge [fontname="Sans"];
browser [label="Browser", shape=Mdiamond];
rp [label="Reverse Proxy", href="https://docs.searxng.org/utils/filtron.sh.html#public-reverse-proxy"];
filtron [label="Filtron", href="https://docs.searxng.org/utils/filtron.sh.html"];
morty [label="Morty", href="https://docs.searxng.org/utils/morty.sh.html"];
static [label="Static files", href="url to configure static files"];
uwsgi [label="uwsgi", href="https://docs.searxng.org/utils/searx.sh.html"]
searx1 [label="Searx #1"];
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searx3 [label="Searx #3"];
searx4 [label="Searx #4"];
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rp -> filtron [label="HTTP"];
filtron -> uwsgi [label="HTTP"];
uwsgi -> searx1;
uwsgi -> searx2;
uwsgi -> searx3;
uwsgi -> searx4;
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<title>G</title>
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<g id="edge1" class="edge">
<title>browser&#45;&gt;rp</title>
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<title>rp&#45;&gt;static</title>
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<title>G</title>
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<h1>Source code for searx.babel_extract</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;This module implements the :origin:`searxng_msg &lt;babel.cfg&gt;` extractor to</span>
<span class="sd">extract messages from:</span>
<span class="sd">- :origin:`searx/searxng.msg`</span>
<span class="sd">The ``searxng.msg`` files are selected by Babel_, see Babel&#39;s configuration in</span>
<span class="sd">:origin:`babel.cfg`::</span>
<span class="sd"> searxng_msg = searx.babel_extract.extract</span>
<span class="sd"> ...</span>
<span class="sd"> [searxng_msg: **/searxng.msg]</span>
<span class="sd">A ``searxng.msg`` file is a python file that is *executed* by the</span>
<span class="sd">:py:obj:`extract` function. Additional ``searxng.msg`` files can be added by:</span>
<span class="sd">1. Adding a ``searxng.msg`` file in one of the SearXNG python packages and</span>
<span class="sd">2. implement a method in :py:obj:`extract` that yields messages from this file.</span>
<span class="sd">.. _Babel: https://babel.pocoo.org/en/latest/index.html</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">from</span> <span class="nn">os</span> <span class="kn">import</span> <span class="n">path</span>
<span class="n">SEARXNG_MSG_FILE</span> <span class="o">=</span> <span class="s2">&quot;searxng.msg&quot;</span>
<span class="n">_MSG_FILES</span> <span class="o">=</span> <span class="p">[</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="vm">__file__</span><span class="p">),</span> <span class="n">SEARXNG_MSG_FILE</span><span class="p">)]</span>
<div class="viewcode-block" id="extract"><a class="viewcode-back" href="../../src/searx.babel_extract.html#searx.babel_extract.extract">[docs]</a><span class="k">def</span> <span class="nf">extract</span><span class="p">(</span>
<span class="c1"># pylint: disable=unused-argument</span>
<span class="n">fileobj</span><span class="p">,</span>
<span class="n">keywords</span><span class="p">,</span>
<span class="n">comment_tags</span><span class="p">,</span>
<span class="n">options</span><span class="p">,</span>
<span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Extract messages from ``searxng.msg`` files by a custom extractor_.</span>
<span class="sd"> .. _extractor:</span>
<span class="sd"> https://babel.pocoo.org/en/latest/messages.html#writing-extraction-methods</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="n">fileobj</span><span class="o">.</span><span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">_MSG_FILES</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s2">&quot;don&#39;t know how to extract messages from </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="n">fileobj</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
<span class="n">namespace</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">exec</span><span class="p">(</span><span class="n">fileobj</span><span class="o">.</span><span class="n">read</span><span class="p">(),</span> <span class="p">{},</span> <span class="n">namespace</span><span class="p">)</span> <span class="c1"># pylint: disable=exec-used</span>
<span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">namespace</span><span class="p">[</span><span class="s1">&#39;__all__&#39;</span><span class="p">]:</span>
<span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">namespace</span><span class="p">[</span><span class="n">name</span><span class="p">]</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="k">yield</span> <span class="mi">0</span><span class="p">,</span> <span class="s1">&#39;_&#39;</span><span class="p">,</span> <span class="n">v</span><span class="p">,</span> <span class="p">[</span><span class="s2">&quot;</span><span class="si">%s</span><span class="s2">[&#39;</span><span class="si">%s</span><span class="s2">&#39;]&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">k</span><span class="p">)]</span></div>
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<h1>Source code for searx.engines</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;This module implements the engine loader.</span>
<span class="sd">Load and initialize the ``engines``, see :py:func:`load_engines` and register</span>
<span class="sd">:py:obj:`engine_shortcuts`.</span>
<span class="sd">usage::</span>
<span class="sd"> load_engines( settings[&#39;engines&#39;] )</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">import</span> <span class="nn">copy</span>
<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Dict</span><span class="p">,</span> <span class="n">List</span><span class="p">,</span> <span class="n">Optional</span>
<span class="kn">from</span> <span class="nn">os.path</span> <span class="kn">import</span> <span class="n">realpath</span><span class="p">,</span> <span class="n">dirname</span>
<span class="kn">from</span> <span class="nn">babel.localedata</span> <span class="kn">import</span> <span class="n">locale_identifiers</span>
<span class="kn">from</span> <span class="nn">searx</span> <span class="kn">import</span> <span class="n">logger</span><span class="p">,</span> <span class="n">settings</span>
<span class="kn">from</span> <span class="nn">searx.data</span> <span class="kn">import</span> <span class="n">ENGINES_LANGUAGES</span>
<span class="kn">from</span> <span class="nn">searx.network</span> <span class="kn">import</span> <span class="n">get</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="n">load_module</span><span class="p">,</span> <span class="n">match_language</span><span class="p">,</span> <span class="n">gen_useragent</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logger</span><span class="o">.</span><span class="n">getChild</span><span class="p">(</span><span class="s1">&#39;engines&#39;</span><span class="p">)</span>
<span class="n">ENGINE_DIR</span> <span class="o">=</span> <span class="n">dirname</span><span class="p">(</span><span class="n">realpath</span><span class="p">(</span><span class="vm">__file__</span><span class="p">))</span>
<span class="n">BABEL_LANGS</span> <span class="o">=</span> <span class="p">[</span>
<span class="n">lang_parts</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">+</span> <span class="s1">&#39;-&#39;</span> <span class="o">+</span> <span class="n">lang_parts</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">lang_parts</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">1</span> <span class="k">else</span> <span class="n">lang_parts</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">for</span> <span class="n">lang_parts</span> <span class="ow">in</span> <span class="p">(</span><span class="n">lang_code</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">)</span> <span class="k">for</span> <span class="n">lang_code</span> <span class="ow">in</span> <span class="n">locale_identifiers</span><span class="p">())</span>
<span class="p">]</span>
<span class="n">ENGINE_DEFAULT_ARGS</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;engine_type&quot;</span><span class="p">:</span> <span class="s2">&quot;online&quot;</span><span class="p">,</span>
<span class="s2">&quot;inactive&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;disabled&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;timeout&quot;</span><span class="p">:</span> <span class="n">settings</span><span class="p">[</span><span class="s2">&quot;outgoing&quot;</span><span class="p">][</span><span class="s2">&quot;request_timeout&quot;</span><span class="p">],</span>
<span class="s2">&quot;shortcut&quot;</span><span class="p">:</span> <span class="s2">&quot;-&quot;</span><span class="p">,</span>
<span class="s2">&quot;categories&quot;</span><span class="p">:</span> <span class="p">[</span><span class="s2">&quot;general&quot;</span><span class="p">],</span>
<span class="s2">&quot;supported_languages&quot;</span><span class="p">:</span> <span class="p">[],</span>
<span class="s2">&quot;language_aliases&quot;</span><span class="p">:</span> <span class="p">{},</span>
<span class="s2">&quot;paging&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;safesearch&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;time_range_support&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;enable_http&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;using_tor_proxy&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;display_error_messages&quot;</span><span class="p">:</span> <span class="kc">True</span><span class="p">,</span>
<span class="s2">&quot;tokens&quot;</span><span class="p">:</span> <span class="p">[],</span>
<span class="s2">&quot;about&quot;</span><span class="p">:</span> <span class="p">{},</span>
<span class="p">}</span>
<span class="c1"># set automatically when an engine does not have any tab category</span>
<span class="n">OTHER_CATEGORY</span> <span class="o">=</span> <span class="s1">&#39;other&#39;</span>
<div class="viewcode-block" id="Engine"><a class="viewcode-back" href="../../src/searx.engines.html#searx.engines.Engine">[docs]</a><span class="k">class</span> <span class="nc">Engine</span><span class="p">:</span> <span class="c1"># pylint: disable=too-few-public-methods</span>
<span class="sd">&quot;&quot;&quot;This class is currently never initialized and only used for type hinting.&quot;&quot;&quot;</span>
<span class="n">name</span><span class="p">:</span> <span class="nb">str</span>
<span class="n">engine</span><span class="p">:</span> <span class="nb">str</span>
<span class="n">shortcut</span><span class="p">:</span> <span class="nb">str</span>
<span class="n">categories</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span>
<span class="n">supported_languages</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span>
<span class="n">about</span><span class="p">:</span> <span class="nb">dict</span>
<span class="n">inactive</span><span class="p">:</span> <span class="nb">bool</span>
<span class="n">disabled</span><span class="p">:</span> <span class="nb">bool</span>
<span class="n">language_support</span><span class="p">:</span> <span class="nb">bool</span>
<span class="n">paging</span><span class="p">:</span> <span class="nb">bool</span>
<span class="n">safesearch</span><span class="p">:</span> <span class="nb">bool</span>
<span class="n">time_range_support</span><span class="p">:</span> <span class="nb">bool</span>
<span class="n">timeout</span><span class="p">:</span> <span class="nb">float</span></div>
<span class="c1"># Defaults for the namespace of an engine module, see :py:func:`load_engine`</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">{</span><span class="s1">&#39;general&#39;</span><span class="p">:</span> <span class="p">[]}</span>
<span class="n">engines</span><span class="p">:</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Engine</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">engine_shortcuts</span> <span class="o">=</span> <span class="p">{}</span>
<span class="sd">&quot;&quot;&quot;Simple map of registered *shortcuts* to name of the engine (or ``None``).</span>
<span class="sd">::</span>
<span class="sd"> engine_shortcuts[engine.shortcut] = engine.name</span>
<span class="sd">&quot;&quot;&quot;</span>
<div class="viewcode-block" id="load_engine"><a class="viewcode-back" href="../../src/searx.engines.html#searx.engines.load_engine">[docs]</a><span class="k">def</span> <span class="nf">load_engine</span><span class="p">(</span><span class="n">engine_data</span><span class="p">:</span> <span class="nb">dict</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Optional</span><span class="p">[</span><span class="n">Engine</span><span class="p">]:</span>
<span class="sd">&quot;&quot;&quot;Load engine from ``engine_data``.</span>
<span class="sd"> :param dict engine_data: Attributes from YAML ``settings:engines/&lt;engine&gt;``</span>
<span class="sd"> :return: initialized namespace of the ``&lt;engine&gt;``.</span>
<span class="sd"> 1. create a namespace and load module of the ``&lt;engine&gt;``</span>
<span class="sd"> 2. update namespace with the defaults from :py:obj:`ENGINE_DEFAULT_ARGS`</span>
<span class="sd"> 3. update namespace with values from ``engine_data``</span>
<span class="sd"> If engine *is active*, return namespace of the engine, otherwise return</span>
<span class="sd"> ``None``.</span>
<span class="sd"> This function also returns ``None`` if initialization of the namespace fails</span>
<span class="sd"> for one of the following reasons:</span>
<span class="sd"> - engine name contains underscore</span>
<span class="sd"> - engine name is not lowercase</span>
<span class="sd"> - required attribute is not set :py:func:`is_missing_required_attributes`</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">engine_name</span> <span class="o">=</span> <span class="n">engine_data</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">]</span>
<span class="k">if</span> <span class="s1">&#39;_&#39;</span> <span class="ow">in</span> <span class="n">engine_name</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">&#39;Engine name contains underscore: &quot;</span><span class="si">{}</span><span class="s1">&quot;&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">engine_name</span><span class="p">))</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">if</span> <span class="n">engine_name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="o">!=</span> <span class="n">engine_name</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span><span class="s1">&#39;Engine name is not lowercase: &quot;</span><span class="si">{}</span><span class="s1">&quot;, converting to lowercase&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">engine_name</span><span class="p">))</span>
<span class="n">engine_name</span> <span class="o">=</span> <span class="n">engine_name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span>
<span class="n">engine_data</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">engine_name</span>
<span class="c1"># load_module</span>
<span class="n">engine_module</span> <span class="o">=</span> <span class="n">engine_data</span><span class="p">[</span><span class="s1">&#39;engine&#39;</span><span class="p">]</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">engine</span> <span class="o">=</span> <span class="n">load_module</span><span class="p">(</span><span class="n">engine_module</span> <span class="o">+</span> <span class="s1">&#39;.py&#39;</span><span class="p">,</span> <span class="n">ENGINE_DIR</span><span class="p">)</span>
<span class="k">except</span> <span class="p">(</span><span class="ne">SyntaxError</span><span class="p">,</span> <span class="ne">KeyboardInterrupt</span><span class="p">,</span> <span class="ne">SystemExit</span><span class="p">,</span> <span class="ne">SystemError</span><span class="p">,</span> <span class="ne">ImportError</span><span class="p">,</span> <span class="ne">RuntimeError</span><span class="p">):</span>
<span class="n">logger</span><span class="o">.</span><span class="n">exception</span><span class="p">(</span><span class="s1">&#39;Fatal exception in engine &quot;</span><span class="si">{}</span><span class="s1">&quot;&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">engine_module</span><span class="p">))</span>
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">BaseException</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">exception</span><span class="p">(</span><span class="s1">&#39;Cannot load engine &quot;</span><span class="si">{}</span><span class="s1">&quot;&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">engine_module</span><span class="p">))</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="n">update_engine_attributes</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="n">engine_data</span><span class="p">)</span>
<span class="n">set_language_attributes</span><span class="p">(</span><span class="n">engine</span><span class="p">)</span>
<span class="n">update_attributes_for_tor</span><span class="p">(</span><span class="n">engine</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">is_engine_active</span><span class="p">(</span><span class="n">engine</span><span class="p">):</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">if</span> <span class="n">is_missing_required_attributes</span><span class="p">(</span><span class="n">engine</span><span class="p">):</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="n">set_loggers</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="n">engine_name</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">any</span><span class="p">(</span><span class="n">cat</span> <span class="ow">in</span> <span class="n">settings</span><span class="p">[</span><span class="s1">&#39;categories_as_tabs&#39;</span><span class="p">]</span> <span class="k">for</span> <span class="n">cat</span> <span class="ow">in</span> <span class="n">engine</span><span class="o">.</span><span class="n">categories</span><span class="p">):</span>
<span class="n">engine</span><span class="o">.</span><span class="n">categories</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">OTHER_CATEGORY</span><span class="p">)</span>
<span class="k">return</span> <span class="n">engine</span></div>
<span class="k">def</span> <span class="nf">set_loggers</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="n">engine_name</span><span class="p">):</span>
<span class="c1"># set the logger for engine</span>
<span class="n">engine</span><span class="o">.</span><span class="n">logger</span> <span class="o">=</span> <span class="n">logger</span><span class="o">.</span><span class="n">getChild</span><span class="p">(</span><span class="n">engine_name</span><span class="p">)</span>
<span class="c1"># the engine may have load some other engines</span>
<span class="c1"># may sure the logger is initialized</span>
<span class="k">for</span> <span class="n">module_name</span><span class="p">,</span> <span class="n">module</span> <span class="ow">in</span> <span class="n">sys</span><span class="o">.</span><span class="n">modules</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="k">if</span> <span class="p">(</span>
<span class="n">module_name</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s2">&quot;searx.engines&quot;</span><span class="p">)</span>
<span class="ow">and</span> <span class="n">module_name</span> <span class="o">!=</span> <span class="s2">&quot;searx.engines.__init__&quot;</span>
<span class="ow">and</span> <span class="ow">not</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">module</span><span class="p">,</span> <span class="s2">&quot;logger&quot;</span><span class="p">)</span>
<span class="p">):</span>
<span class="n">module_engine_name</span> <span class="o">=</span> <span class="n">module_name</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">&quot;.&quot;</span><span class="p">)[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>
<span class="n">module</span><span class="o">.</span><span class="n">logger</span> <span class="o">=</span> <span class="n">logger</span><span class="o">.</span><span class="n">getChild</span><span class="p">(</span><span class="n">module_engine_name</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">update_engine_attributes</span><span class="p">(</span><span class="n">engine</span><span class="p">:</span> <span class="n">Engine</span><span class="p">,</span> <span class="n">engine_data</span><span class="p">):</span>
<span class="c1"># set engine attributes from engine_data</span>
<span class="k">for</span> <span class="n">param_name</span><span class="p">,</span> <span class="n">param_value</span> <span class="ow">in</span> <span class="n">engine_data</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="k">if</span> <span class="n">param_name</span> <span class="o">==</span> <span class="s1">&#39;categories&#39;</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">param_value</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="n">param_value</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">map</span><span class="p">(</span><span class="nb">str</span><span class="o">.</span><span class="n">strip</span><span class="p">,</span> <span class="n">param_value</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;,&#39;</span><span class="p">)))</span>
<span class="n">engine</span><span class="o">.</span><span class="n">categories</span> <span class="o">=</span> <span class="n">param_value</span>
<span class="k">elif</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s1">&#39;about&#39;</span><span class="p">)</span> <span class="ow">and</span> <span class="n">param_name</span> <span class="o">==</span> <span class="s1">&#39;about&#39;</span><span class="p">:</span>
<span class="n">engine</span><span class="o">.</span><span class="n">about</span> <span class="o">=</span> <span class="p">{</span><span class="o">**</span><span class="n">engine</span><span class="o">.</span><span class="n">about</span><span class="p">,</span> <span class="o">**</span><span class="n">engine_data</span><span class="p">[</span><span class="s1">&#39;about&#39;</span><span class="p">]}</span>
<span class="k">else</span><span class="p">:</span>
<span class="nb">setattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="n">param_name</span><span class="p">,</span> <span class="n">param_value</span><span class="p">)</span>
<span class="c1"># set default attributes</span>
<span class="k">for</span> <span class="n">arg_name</span><span class="p">,</span> <span class="n">arg_value</span> <span class="ow">in</span> <span class="n">ENGINE_DEFAULT_ARGS</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="n">arg_name</span><span class="p">):</span>
<span class="nb">setattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="n">arg_name</span><span class="p">,</span> <span class="n">copy</span><span class="o">.</span><span class="n">deepcopy</span><span class="p">(</span><span class="n">arg_value</span><span class="p">))</span>
<span class="k">def</span> <span class="nf">set_language_attributes</span><span class="p">(</span><span class="n">engine</span><span class="p">:</span> <span class="n">Engine</span><span class="p">):</span>
<span class="c1"># assign supported languages from json file</span>
<span class="k">if</span> <span class="n">engine</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">ENGINES_LANGUAGES</span><span class="p">:</span>
<span class="n">engine</span><span class="o">.</span><span class="n">supported_languages</span> <span class="o">=</span> <span class="n">ENGINES_LANGUAGES</span><span class="p">[</span><span class="n">engine</span><span class="o">.</span><span class="n">name</span><span class="p">]</span>
<span class="k">elif</span> <span class="n">engine</span><span class="o">.</span><span class="n">engine</span> <span class="ow">in</span> <span class="n">ENGINES_LANGUAGES</span><span class="p">:</span>
<span class="c1"># The key of the dictionary ENGINES_LANGUAGES is the *engine name*</span>
<span class="c1"># configured in settings.xml. When multiple engines are configured in</span>
<span class="c1"># settings.yml to use the same origin engine (python module) these</span>
<span class="c1"># additional engines can use the languages from the origin engine.</span>
<span class="c1"># For this use the configured ``engine: ...`` from settings.yml</span>
<span class="n">engine</span><span class="o">.</span><span class="n">supported_languages</span> <span class="o">=</span> <span class="n">ENGINES_LANGUAGES</span><span class="p">[</span><span class="n">engine</span><span class="o">.</span><span class="n">engine</span><span class="p">]</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s1">&#39;language&#39;</span><span class="p">):</span>
<span class="c1"># For an engine, when there is `language: ...` in the YAML settings, the</span>
<span class="c1"># engine supports only one language, in this case</span>
<span class="c1"># engine.supported_languages should contains this value defined in</span>
<span class="c1"># settings.yml</span>
<span class="k">if</span> <span class="n">engine</span><span class="o">.</span><span class="n">language</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">engine</span><span class="o">.</span><span class="n">supported_languages</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
<span class="s2">&quot;settings.yml - engine: &#39;</span><span class="si">%s</span><span class="s2">&#39; / language: &#39;</span><span class="si">%s</span><span class="s2">&#39; not supported&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">engine</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="n">engine</span><span class="o">.</span><span class="n">language</span><span class="p">)</span>
<span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">engine</span><span class="o">.</span><span class="n">supported_languages</span><span class="p">,</span> <span class="nb">dict</span><span class="p">):</span>
<span class="n">engine</span><span class="o">.</span><span class="n">supported_languages</span> <span class="o">=</span> <span class="p">{</span><span class="n">engine</span><span class="o">.</span><span class="n">language</span><span class="p">:</span> <span class="n">engine</span><span class="o">.</span><span class="n">supported_languages</span><span class="p">[</span><span class="n">engine</span><span class="o">.</span><span class="n">language</span><span class="p">]}</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">engine</span><span class="o">.</span><span class="n">supported_languages</span> <span class="o">=</span> <span class="p">[</span><span class="n">engine</span><span class="o">.</span><span class="n">language</span><span class="p">]</span>
<span class="c1"># find custom aliases for non standard language codes</span>
<span class="k">for</span> <span class="n">engine_lang</span> <span class="ow">in</span> <span class="n">engine</span><span class="o">.</span><span class="n">supported_languages</span><span class="p">:</span>
<span class="n">iso_lang</span> <span class="o">=</span> <span class="n">match_language</span><span class="p">(</span><span class="n">engine_lang</span><span class="p">,</span> <span class="n">BABEL_LANGS</span><span class="p">,</span> <span class="n">fallback</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="p">(</span>
<span class="n">iso_lang</span>
<span class="ow">and</span> <span class="n">iso_lang</span> <span class="o">!=</span> <span class="n">engine_lang</span>
<span class="ow">and</span> <span class="ow">not</span> <span class="n">engine_lang</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="n">iso_lang</span><span class="p">)</span>
<span class="ow">and</span> <span class="n">iso_lang</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">engine</span><span class="o">.</span><span class="n">supported_languages</span>
<span class="p">):</span>
<span class="n">engine</span><span class="o">.</span><span class="n">language_aliases</span><span class="p">[</span><span class="n">iso_lang</span><span class="p">]</span> <span class="o">=</span> <span class="n">engine_lang</span>
<span class="c1"># language_support</span>
<span class="n">engine</span><span class="o">.</span><span class="n">language_support</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">engine</span><span class="o">.</span><span class="n">supported_languages</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span>
<span class="c1"># assign language fetching method if auxiliary method exists</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s1">&#39;_fetch_supported_languages&#39;</span><span class="p">):</span>
<span class="n">headers</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;User-Agent&#39;</span><span class="p">:</span> <span class="n">gen_useragent</span><span class="p">(),</span>
<span class="s1">&#39;Accept-Language&#39;</span><span class="p">:</span> <span class="s2">&quot;en-US,en;q=0.5&quot;</span><span class="p">,</span> <span class="c1"># bing needs to set the English language</span>
<span class="p">}</span>
<span class="n">engine</span><span class="o">.</span><span class="n">fetch_supported_languages</span> <span class="o">=</span> <span class="p">(</span>
<span class="c1"># pylint: disable=protected-access</span>
<span class="k">lambda</span><span class="p">:</span> <span class="n">engine</span><span class="o">.</span><span class="n">_fetch_supported_languages</span><span class="p">(</span><span class="n">get</span><span class="p">(</span><span class="n">engine</span><span class="o">.</span><span class="n">supported_languages_url</span><span class="p">,</span> <span class="n">headers</span><span class="o">=</span><span class="n">headers</span><span class="p">))</span>
<span class="p">)</span>
<span class="k">def</span> <span class="nf">update_attributes_for_tor</span><span class="p">(</span><span class="n">engine</span><span class="p">:</span> <span class="n">Engine</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">bool</span><span class="p">:</span>
<span class="k">if</span> <span class="n">using_tor_proxy</span><span class="p">(</span><span class="n">engine</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s1">&#39;onion_url&#39;</span><span class="p">):</span>
<span class="n">engine</span><span class="o">.</span><span class="n">search_url</span> <span class="o">=</span> <span class="n">engine</span><span class="o">.</span><span class="n">onion_url</span> <span class="o">+</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s1">&#39;search_path&#39;</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">)</span>
<span class="n">engine</span><span class="o">.</span><span class="n">timeout</span> <span class="o">+=</span> <span class="n">settings</span><span class="p">[</span><span class="s1">&#39;outgoing&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;extra_proxy_timeout&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<div class="viewcode-block" id="is_missing_required_attributes"><a class="viewcode-back" href="../../src/searx.engines.html#searx.engines.is_missing_required_attributes">[docs]</a><span class="k">def</span> <span class="nf">is_missing_required_attributes</span><span class="p">(</span><span class="n">engine</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;An attribute is required when its name doesn&#39;t start with ``_`` (underline).</span>
<span class="sd"> Required attributes must not be ``None``.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">missing</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">for</span> <span class="n">engine_attr</span> <span class="ow">in</span> <span class="nb">dir</span><span class="p">(</span><span class="n">engine</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">engine_attr</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="n">engine_attr</span><span class="p">)</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">&#39;Missing engine config attribute: &quot;</span><span class="si">{0}</span><span class="s1">.</span><span class="si">{1}</span><span class="s1">&quot;&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">engine</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="n">engine_attr</span><span class="p">))</span>
<span class="n">missing</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">return</span> <span class="n">missing</span></div>
<div class="viewcode-block" id="using_tor_proxy"><a class="viewcode-back" href="../../src/searx.engines.html#searx.engines.using_tor_proxy">[docs]</a><span class="k">def</span> <span class="nf">using_tor_proxy</span><span class="p">(</span><span class="n">engine</span><span class="p">:</span> <span class="n">Engine</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Return True if the engine configuration declares to use Tor.&quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">settings</span><span class="p">[</span><span class="s1">&#39;outgoing&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;using_tor_proxy&#39;</span><span class="p">)</span> <span class="ow">or</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s1">&#39;using_tor_proxy&#39;</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">is_engine_active</span><span class="p">(</span><span class="n">engine</span><span class="p">:</span> <span class="n">Engine</span><span class="p">):</span>
<span class="c1"># check if engine is inactive</span>
<span class="k">if</span> <span class="n">engine</span><span class="o">.</span><span class="n">inactive</span> <span class="ow">is</span> <span class="kc">True</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="c1"># exclude onion engines if not using tor</span>
<span class="k">if</span> <span class="s1">&#39;onions&#39;</span> <span class="ow">in</span> <span class="n">engine</span><span class="o">.</span><span class="n">categories</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">using_tor_proxy</span><span class="p">(</span><span class="n">engine</span><span class="p">):</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="k">def</span> <span class="nf">register_engine</span><span class="p">(</span><span class="n">engine</span><span class="p">:</span> <span class="n">Engine</span><span class="p">):</span>
<span class="k">if</span> <span class="n">engine</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">engines</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">&#39;Engine config error: ambigious name: </span><span class="si">{0}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">engine</span><span class="o">.</span><span class="n">name</span><span class="p">))</span>
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="n">engines</span><span class="p">[</span><span class="n">engine</span><span class="o">.</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="n">engine</span>
<span class="k">if</span> <span class="n">engine</span><span class="o">.</span><span class="n">shortcut</span> <span class="ow">in</span> <span class="n">engine_shortcuts</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">&#39;Engine config error: ambigious shortcut: </span><span class="si">{0}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">engine</span><span class="o">.</span><span class="n">shortcut</span><span class="p">))</span>
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="n">engine_shortcuts</span><span class="p">[</span><span class="n">engine</span><span class="o">.</span><span class="n">shortcut</span><span class="p">]</span> <span class="o">=</span> <span class="n">engine</span><span class="o">.</span><span class="n">name</span>
<span class="k">for</span> <span class="n">category_name</span> <span class="ow">in</span> <span class="n">engine</span><span class="o">.</span><span class="n">categories</span><span class="p">:</span>
<span class="n">categories</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">category_name</span><span class="p">,</span> <span class="p">[])</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">engine</span><span class="p">)</span>
<div class="viewcode-block" id="load_engines"><a class="viewcode-back" href="../../src/searx.engines.html#searx.engines.load_engines">[docs]</a><span class="k">def</span> <span class="nf">load_engines</span><span class="p">(</span><span class="n">engine_list</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;usage: ``engine_list = settings[&#39;engines&#39;]``&quot;&quot;&quot;</span>
<span class="n">engines</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
<span class="n">engine_shortcuts</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
<span class="n">categories</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
<span class="n">categories</span><span class="p">[</span><span class="s1">&#39;general&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">engine_data</span> <span class="ow">in</span> <span class="n">engine_list</span><span class="p">:</span>
<span class="n">engine</span> <span class="o">=</span> <span class="n">load_engine</span><span class="p">(</span><span class="n">engine_data</span><span class="p">)</span>
<span class="k">if</span> <span class="n">engine</span><span class="p">:</span>
<span class="n">register_engine</span><span class="p">(</span><span class="n">engine</span><span class="p">)</span>
<span class="k">return</span> <span class="n">engines</span></div>
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<h1>Source code for searx.engines.demo_offline</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;Within this module we implement a *demo offline engine*. Do not look to</span>
<span class="sd">close to the implementation, its just a simple example. To get in use of this</span>
<span class="sd">*demo* engine add the following entry to your engines list in ``settings.yml``:</span>
<span class="sd">.. code:: yaml</span>
<span class="sd"> - name: my offline engine</span>
<span class="sd"> engine: demo_offline</span>
<span class="sd"> shortcut: demo</span>
<span class="sd"> disabled: false</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">import</span> <span class="nn">json</span>
<span class="n">engine_type</span> <span class="o">=</span> <span class="s1">&#39;offline&#39;</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;general&#39;</span><span class="p">]</span>
<span class="n">disabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">timeout</span> <span class="o">=</span> <span class="mf">2.0</span>
<span class="n">about</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;wikidata_id&quot;</span><span class="p">:</span> <span class="kc">None</span><span class="p">,</span>
<span class="s2">&quot;official_api_documentation&quot;</span><span class="p">:</span> <span class="kc">None</span><span class="p">,</span>
<span class="s2">&quot;use_official_api&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;require_api_key&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;results&quot;</span><span class="p">:</span> <span class="s1">&#39;JSON&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># if there is a need for globals, use a leading underline</span>
<span class="n">_my_offline_engine</span> <span class="o">=</span> <span class="kc">None</span>
<div class="viewcode-block" id="init"><a class="viewcode-back" href="../../../src/searx.engines.demo_offline.html#searx.engines.demo_offline.init">[docs]</a><span class="k">def</span> <span class="nf">init</span><span class="p">(</span><span class="n">engine_settings</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Initialization of the (offline) engine. The origin of this demo engine is a</span>
<span class="sd"> simple json string which is loaded in this example while the engine is</span>
<span class="sd"> initialized.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">global</span> <span class="n">_my_offline_engine</span> <span class="c1"># pylint: disable=global-statement</span>
<span class="n">_my_offline_engine</span> <span class="o">=</span> <span class="p">(</span>
<span class="s1">&#39;[ {&quot;value&quot;: &quot;</span><span class="si">%s</span><span class="s1">&quot;}&#39;</span>
<span class="s1">&#39;, {&quot;value&quot;:&quot;first item&quot;}&#39;</span>
<span class="s1">&#39;, {&quot;value&quot;:&quot;second item&quot;}&#39;</span>
<span class="s1">&#39;, {&quot;value&quot;:&quot;third item&quot;}&#39;</span>
<span class="s1">&#39;]&#39;</span> <span class="o">%</span> <span class="n">engine_settings</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;name&#39;</span><span class="p">)</span>
<span class="p">)</span></div>
<div class="viewcode-block" id="search"><a class="viewcode-back" href="../../../src/searx.engines.demo_offline.html#searx.engines.demo_offline.search">[docs]</a><span class="k">def</span> <span class="nf">search</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">request_params</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Query (offline) engine and return results. Assemble the list of results from</span>
<span class="sd"> your local engine. In this demo engine we ignore the &#39;query&#39; term, usual</span>
<span class="sd"> you would pass the &#39;query&#39; term to your local engine to filter out the</span>
<span class="sd"> results.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">ret_val</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">result_list</span> <span class="o">=</span> <span class="n">json</span><span class="o">.</span><span class="n">loads</span><span class="p">(</span><span class="n">_my_offline_engine</span><span class="p">)</span>
<span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">result_list</span><span class="p">:</span>
<span class="n">entry</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;query&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
<span class="s1">&#39;language&#39;</span><span class="p">:</span> <span class="n">request_params</span><span class="p">[</span><span class="s1">&#39;language&#39;</span><span class="p">],</span>
<span class="s1">&#39;value&#39;</span><span class="p">:</span> <span class="n">row</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;value&quot;</span><span class="p">),</span>
<span class="c1"># choose a result template or comment out to use the *default*</span>
<span class="s1">&#39;template&#39;</span><span class="p">:</span> <span class="s1">&#39;key-value.html&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="n">ret_val</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">entry</span><span class="p">)</span>
<span class="k">return</span> <span class="n">ret_val</span></div>
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<h1>Source code for searx.engines.demo_online</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;Within this module we implement a *demo online engine*. Do not look to</span>
<span class="sd">close to the implementation, its just a simple example which queries `The Art</span>
<span class="sd">Institute of Chicago &lt;https://www.artic.edu&gt;`_</span>
<span class="sd">To get in use of this *demo* engine add the following entry to your engines</span>
<span class="sd">list in ``settings.yml``:</span>
<span class="sd">.. code:: yaml</span>
<span class="sd"> - name: my online engine</span>
<span class="sd"> engine: demo_online</span>
<span class="sd"> shortcut: demo</span>
<span class="sd"> disabled: false</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">from</span> <span class="nn">json</span> <span class="kn">import</span> <span class="n">loads</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="kn">import</span> <span class="n">urlencode</span>
<span class="n">engine_type</span> <span class="o">=</span> <span class="s1">&#39;offline&#39;</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;general&#39;</span><span class="p">]</span>
<span class="n">disabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">timeout</span> <span class="o">=</span> <span class="mf">2.0</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;images&#39;</span><span class="p">]</span>
<span class="n">paging</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">page_size</span> <span class="o">=</span> <span class="mi">20</span>
<span class="n">search_api</span> <span class="o">=</span> <span class="s1">&#39;https://api.artic.edu/api/v1/artworks/search?&#39;</span>
<span class="n">image_api</span> <span class="o">=</span> <span class="s1">&#39;https://www.artic.edu/iiif/2/&#39;</span>
<span class="n">about</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;website&quot;</span><span class="p">:</span> <span class="s1">&#39;https://www.artic.edu&#39;</span><span class="p">,</span>
<span class="s2">&quot;wikidata_id&quot;</span><span class="p">:</span> <span class="s1">&#39;Q239303&#39;</span><span class="p">,</span>
<span class="s2">&quot;official_api_documentation&quot;</span><span class="p">:</span> <span class="s1">&#39;http://api.artic.edu/docs/&#39;</span><span class="p">,</span>
<span class="s2">&quot;use_official_api&quot;</span><span class="p">:</span> <span class="kc">True</span><span class="p">,</span>
<span class="s2">&quot;require_api_key&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;results&quot;</span><span class="p">:</span> <span class="s1">&#39;JSON&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># if there is a need for globals, use a leading underline</span>
<span class="n">_my_online_engine</span> <span class="o">=</span> <span class="kc">None</span>
<div class="viewcode-block" id="init"><a class="viewcode-back" href="../../../src/searx.engines.demo_online.html#searx.engines.demo_online.init">[docs]</a><span class="k">def</span> <span class="nf">init</span><span class="p">(</span><span class="n">engine_settings</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Initialization of the (online) engine. If no initialization is needed, drop</span>
<span class="sd"> this init function.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">global</span> <span class="n">_my_online_engine</span> <span class="c1"># pylint: disable=global-statement</span>
<span class="n">_my_online_engine</span> <span class="o">=</span> <span class="n">engine_settings</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;name&#39;</span><span class="p">)</span></div>
<div class="viewcode-block" id="request"><a class="viewcode-back" href="../../../src/searx.engines.demo_online.html#searx.engines.demo_online.request">[docs]</a><span class="k">def</span> <span class="nf">request</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">params</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Build up the ``params`` for the online request. In this example we build a</span>
<span class="sd"> URL to fetch images from `artic.edu &lt;https://artic.edu&gt;`__</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">args</span> <span class="o">=</span> <span class="n">urlencode</span><span class="p">(</span>
<span class="p">{</span>
<span class="s1">&#39;q&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
<span class="s1">&#39;page&#39;</span><span class="p">:</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;pageno&#39;</span><span class="p">],</span>
<span class="s1">&#39;fields&#39;</span><span class="p">:</span> <span class="s1">&#39;id,title,artist_display,medium_display,image_id,date_display,dimensions,artist_titles&#39;</span><span class="p">,</span>
<span class="s1">&#39;limit&#39;</span><span class="p">:</span> <span class="n">page_size</span><span class="p">,</span>
<span class="p">}</span>
<span class="p">)</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">search_api</span> <span class="o">+</span> <span class="n">args</span>
<span class="k">return</span> <span class="n">params</span></div>
<div class="viewcode-block" id="response"><a class="viewcode-back" href="../../../src/searx.engines.demo_online.html#searx.engines.demo_online.response">[docs]</a><span class="k">def</span> <span class="nf">response</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Parse out the result items from the response. In this example we parse the</span>
<span class="sd"> response from `api.artic.edu &lt;https://artic.edu&gt;`__ and filter out all</span>
<span class="sd"> images.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">results</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">json_data</span> <span class="o">=</span> <span class="n">loads</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="k">for</span> <span class="n">result</span> <span class="ow">in</span> <span class="n">json_data</span><span class="p">[</span><span class="s1">&#39;data&#39;</span><span class="p">]:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">result</span><span class="p">[</span><span class="s1">&#39;image_id&#39;</span><span class="p">]:</span>
<span class="k">continue</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">(</span>
<span class="p">{</span>
<span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="s1">&#39;https://artic.edu/artworks/</span><span class="si">%(id)s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">result</span><span class="p">,</span>
<span class="s1">&#39;title&#39;</span><span class="p">:</span> <span class="n">result</span><span class="p">[</span><span class="s1">&#39;title&#39;</span><span class="p">]</span> <span class="o">+</span> <span class="s2">&quot; (</span><span class="si">%(date_display)s</span><span class="s2">) // </span><span class="si">%(artist_display)s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="n">result</span><span class="p">,</span>
<span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">result</span><span class="p">[</span><span class="s1">&#39;medium_display&#39;</span><span class="p">],</span>
<span class="s1">&#39;author&#39;</span><span class="p">:</span> <span class="s1">&#39;, &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">result</span><span class="p">[</span><span class="s1">&#39;artist_titles&#39;</span><span class="p">]),</span>
<span class="s1">&#39;img_src&#39;</span><span class="p">:</span> <span class="n">image_api</span> <span class="o">+</span> <span class="s1">&#39;/</span><span class="si">%(image_id)s</span><span class="s1">/full/843,/0/default.jpg&#39;</span> <span class="o">%</span> <span class="n">result</span><span class="p">,</span>
<span class="s1">&#39;img_format&#39;</span><span class="p">:</span> <span class="n">result</span><span class="p">[</span><span class="s1">&#39;dimensions&#39;</span><span class="p">],</span>
<span class="s1">&#39;template&#39;</span><span class="p">:</span> <span class="s1">&#39;images.html&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">results</span></div>
</pre></div>
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<h1>Source code for searx.engines.google</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;This is the implementation of the google WEB engine. Some of this</span>
<span class="sd">implementations are shared by other engines:</span>
<span class="sd">- :ref:`google images engine`</span>
<span class="sd">- :ref:`google news engine`</span>
<span class="sd">- :ref:`google videos engine`</span>
<span class="sd">The google WEB engine itself has a special setup option:</span>
<span class="sd">.. code:: yaml</span>
<span class="sd"> - name: google</span>
<span class="sd"> ...</span>
<span class="sd"> use_mobile_ui: false</span>
<span class="sd">``use_mobile_ui``: (default: ``false``)</span>
<span class="sd"> Enables to use *mobile endpoint* to bypass the google blocking (see</span>
<span class="sd"> :issue:`159`). On the mobile UI of Google Search, the button :guilabel:`More</span>
<span class="sd"> results` is not affected by Google rate limiting and we can still do requests</span>
<span class="sd"> while actively blocked by the original Google search. By activate</span>
<span class="sd"> ``use_mobile_ui`` this behavior is simulated by adding the parameter</span>
<span class="sd"> ``async=use_ac:true,_fmt:pc`` to the :py:func:`request`.</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="kn">import</span> <span class="n">urlencode</span>
<span class="kn">from</span> <span class="nn">lxml</span> <span class="kn">import</span> <span class="n">html</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="n">match_language</span><span class="p">,</span> <span class="n">extract_text</span><span class="p">,</span> <span class="n">eval_xpath</span><span class="p">,</span> <span class="n">eval_xpath_list</span><span class="p">,</span> <span class="n">eval_xpath_getindex</span>
<span class="kn">from</span> <span class="nn">searx.exceptions</span> <span class="kn">import</span> <span class="n">SearxEngineCaptchaException</span>
<span class="c1"># about</span>
<span class="n">about</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;website&quot;</span><span class="p">:</span> <span class="s1">&#39;https://www.google.com&#39;</span><span class="p">,</span>
<span class="s2">&quot;wikidata_id&quot;</span><span class="p">:</span> <span class="s1">&#39;Q9366&#39;</span><span class="p">,</span>
<span class="s2">&quot;official_api_documentation&quot;</span><span class="p">:</span> <span class="s1">&#39;https://developers.google.com/custom-search/&#39;</span><span class="p">,</span>
<span class="s2">&quot;use_official_api&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;require_api_key&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;results&quot;</span><span class="p">:</span> <span class="s1">&#39;HTML&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># engine dependent config</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;general&#39;</span><span class="p">,</span> <span class="s1">&#39;web&#39;</span><span class="p">]</span>
<span class="n">paging</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">time_range_support</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">safesearch</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">use_mobile_ui</span> <span class="o">=</span> <span class="kc">False</span>
<span class="n">supported_languages_url</span> <span class="o">=</span> <span class="s1">&#39;https://www.google.com/preferences?#languages&#39;</span>
<span class="c1"># based on https://en.wikipedia.org/wiki/List_of_Google_domains and tests</span>
<span class="n">google_domains</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;BG&#39;</span><span class="p">:</span> <span class="s1">&#39;google.bg&#39;</span><span class="p">,</span> <span class="c1"># Bulgaria</span>
<span class="s1">&#39;CZ&#39;</span><span class="p">:</span> <span class="s1">&#39;google.cz&#39;</span><span class="p">,</span> <span class="c1"># Czech Republic</span>
<span class="s1">&#39;DE&#39;</span><span class="p">:</span> <span class="s1">&#39;google.de&#39;</span><span class="p">,</span> <span class="c1"># Germany</span>
<span class="s1">&#39;DK&#39;</span><span class="p">:</span> <span class="s1">&#39;google.dk&#39;</span><span class="p">,</span> <span class="c1"># Denmark</span>
<span class="s1">&#39;AT&#39;</span><span class="p">:</span> <span class="s1">&#39;google.at&#39;</span><span class="p">,</span> <span class="c1"># Austria</span>
<span class="s1">&#39;CH&#39;</span><span class="p">:</span> <span class="s1">&#39;google.ch&#39;</span><span class="p">,</span> <span class="c1"># Switzerland</span>
<span class="s1">&#39;GR&#39;</span><span class="p">:</span> <span class="s1">&#39;google.gr&#39;</span><span class="p">,</span> <span class="c1"># Greece</span>
<span class="s1">&#39;AU&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.au&#39;</span><span class="p">,</span> <span class="c1"># Australia</span>
<span class="s1">&#39;CA&#39;</span><span class="p">:</span> <span class="s1">&#39;google.ca&#39;</span><span class="p">,</span> <span class="c1"># Canada</span>
<span class="s1">&#39;GB&#39;</span><span class="p">:</span> <span class="s1">&#39;google.co.uk&#39;</span><span class="p">,</span> <span class="c1"># United Kingdom</span>
<span class="s1">&#39;ID&#39;</span><span class="p">:</span> <span class="s1">&#39;google.co.id&#39;</span><span class="p">,</span> <span class="c1"># Indonesia</span>
<span class="s1">&#39;IE&#39;</span><span class="p">:</span> <span class="s1">&#39;google.ie&#39;</span><span class="p">,</span> <span class="c1"># Ireland</span>
<span class="s1">&#39;IN&#39;</span><span class="p">:</span> <span class="s1">&#39;google.co.in&#39;</span><span class="p">,</span> <span class="c1"># India</span>
<span class="s1">&#39;MY&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.my&#39;</span><span class="p">,</span> <span class="c1"># Malaysia</span>
<span class="s1">&#39;NZ&#39;</span><span class="p">:</span> <span class="s1">&#39;google.co.nz&#39;</span><span class="p">,</span> <span class="c1"># New Zealand</span>
<span class="s1">&#39;PH&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.ph&#39;</span><span class="p">,</span> <span class="c1"># Philippines</span>
<span class="s1">&#39;SG&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.sg&#39;</span><span class="p">,</span> <span class="c1"># Singapore</span>
<span class="s1">&#39;US&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com&#39;</span><span class="p">,</span> <span class="c1"># United States (google.us) redirects to .com</span>
<span class="s1">&#39;ZA&#39;</span><span class="p">:</span> <span class="s1">&#39;google.co.za&#39;</span><span class="p">,</span> <span class="c1"># South Africa</span>
<span class="s1">&#39;AR&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.ar&#39;</span><span class="p">,</span> <span class="c1"># Argentina</span>
<span class="s1">&#39;CL&#39;</span><span class="p">:</span> <span class="s1">&#39;google.cl&#39;</span><span class="p">,</span> <span class="c1"># Chile</span>
<span class="s1">&#39;ES&#39;</span><span class="p">:</span> <span class="s1">&#39;google.es&#39;</span><span class="p">,</span> <span class="c1"># Spain</span>
<span class="s1">&#39;MX&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.mx&#39;</span><span class="p">,</span> <span class="c1"># Mexico</span>
<span class="s1">&#39;EE&#39;</span><span class="p">:</span> <span class="s1">&#39;google.ee&#39;</span><span class="p">,</span> <span class="c1"># Estonia</span>
<span class="s1">&#39;FI&#39;</span><span class="p">:</span> <span class="s1">&#39;google.fi&#39;</span><span class="p">,</span> <span class="c1"># Finland</span>
<span class="s1">&#39;BE&#39;</span><span class="p">:</span> <span class="s1">&#39;google.be&#39;</span><span class="p">,</span> <span class="c1"># Belgium</span>
<span class="s1">&#39;FR&#39;</span><span class="p">:</span> <span class="s1">&#39;google.fr&#39;</span><span class="p">,</span> <span class="c1"># France</span>
<span class="s1">&#39;IL&#39;</span><span class="p">:</span> <span class="s1">&#39;google.co.il&#39;</span><span class="p">,</span> <span class="c1"># Israel</span>
<span class="s1">&#39;HR&#39;</span><span class="p">:</span> <span class="s1">&#39;google.hr&#39;</span><span class="p">,</span> <span class="c1"># Croatia</span>
<span class="s1">&#39;HU&#39;</span><span class="p">:</span> <span class="s1">&#39;google.hu&#39;</span><span class="p">,</span> <span class="c1"># Hungary</span>
<span class="s1">&#39;IT&#39;</span><span class="p">:</span> <span class="s1">&#39;google.it&#39;</span><span class="p">,</span> <span class="c1"># Italy</span>
<span class="s1">&#39;JP&#39;</span><span class="p">:</span> <span class="s1">&#39;google.co.jp&#39;</span><span class="p">,</span> <span class="c1"># Japan</span>
<span class="s1">&#39;KR&#39;</span><span class="p">:</span> <span class="s1">&#39;google.co.kr&#39;</span><span class="p">,</span> <span class="c1"># South Korea</span>
<span class="s1">&#39;LT&#39;</span><span class="p">:</span> <span class="s1">&#39;google.lt&#39;</span><span class="p">,</span> <span class="c1"># Lithuania</span>
<span class="s1">&#39;LV&#39;</span><span class="p">:</span> <span class="s1">&#39;google.lv&#39;</span><span class="p">,</span> <span class="c1"># Latvia</span>
<span class="s1">&#39;NO&#39;</span><span class="p">:</span> <span class="s1">&#39;google.no&#39;</span><span class="p">,</span> <span class="c1"># Norway</span>
<span class="s1">&#39;NL&#39;</span><span class="p">:</span> <span class="s1">&#39;google.nl&#39;</span><span class="p">,</span> <span class="c1"># Netherlands</span>
<span class="s1">&#39;PL&#39;</span><span class="p">:</span> <span class="s1">&#39;google.pl&#39;</span><span class="p">,</span> <span class="c1"># Poland</span>
<span class="s1">&#39;BR&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.br&#39;</span><span class="p">,</span> <span class="c1"># Brazil</span>
<span class="s1">&#39;PT&#39;</span><span class="p">:</span> <span class="s1">&#39;google.pt&#39;</span><span class="p">,</span> <span class="c1"># Portugal</span>
<span class="s1">&#39;RO&#39;</span><span class="p">:</span> <span class="s1">&#39;google.ro&#39;</span><span class="p">,</span> <span class="c1"># Romania</span>
<span class="s1">&#39;RU&#39;</span><span class="p">:</span> <span class="s1">&#39;google.ru&#39;</span><span class="p">,</span> <span class="c1"># Russia</span>
<span class="s1">&#39;SK&#39;</span><span class="p">:</span> <span class="s1">&#39;google.sk&#39;</span><span class="p">,</span> <span class="c1"># Slovakia</span>
<span class="s1">&#39;SI&#39;</span><span class="p">:</span> <span class="s1">&#39;google.si&#39;</span><span class="p">,</span> <span class="c1"># Slovenia</span>
<span class="s1">&#39;SE&#39;</span><span class="p">:</span> <span class="s1">&#39;google.se&#39;</span><span class="p">,</span> <span class="c1"># Sweden</span>
<span class="s1">&#39;TH&#39;</span><span class="p">:</span> <span class="s1">&#39;google.co.th&#39;</span><span class="p">,</span> <span class="c1"># Thailand</span>
<span class="s1">&#39;TR&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.tr&#39;</span><span class="p">,</span> <span class="c1"># Turkey</span>
<span class="s1">&#39;UA&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.ua&#39;</span><span class="p">,</span> <span class="c1"># Ukraine</span>
<span class="s1">&#39;CN&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.hk&#39;</span><span class="p">,</span> <span class="c1"># There is no google.cn, we use .com.hk for zh-CN</span>
<span class="s1">&#39;HK&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.hk&#39;</span><span class="p">,</span> <span class="c1"># Hong Kong</span>
<span class="s1">&#39;TW&#39;</span><span class="p">:</span> <span class="s1">&#39;google.com.tw&#39;</span><span class="p">,</span> <span class="c1"># Taiwan</span>
<span class="p">}</span>
<span class="n">time_range_dict</span> <span class="o">=</span> <span class="p">{</span><span class="s1">&#39;day&#39;</span><span class="p">:</span> <span class="s1">&#39;d&#39;</span><span class="p">,</span> <span class="s1">&#39;week&#39;</span><span class="p">:</span> <span class="s1">&#39;w&#39;</span><span class="p">,</span> <span class="s1">&#39;month&#39;</span><span class="p">:</span> <span class="s1">&#39;m&#39;</span><span class="p">,</span> <span class="s1">&#39;year&#39;</span><span class="p">:</span> <span class="s1">&#39;y&#39;</span><span class="p">}</span>
<span class="c1"># Filter results. 0: None, 1: Moderate, 2: Strict</span>
<span class="n">filter_mapping</span> <span class="o">=</span> <span class="p">{</span><span class="mi">0</span><span class="p">:</span> <span class="s1">&#39;off&#39;</span><span class="p">,</span> <span class="mi">1</span><span class="p">:</span> <span class="s1">&#39;medium&#39;</span><span class="p">,</span> <span class="mi">2</span><span class="p">:</span> <span class="s1">&#39;high&#39;</span><span class="p">}</span>
<span class="c1"># specific xpath variables</span>
<span class="c1"># ------------------------</span>
<span class="c1"># google results are grouped into &lt;div class=&quot;jtfYYd ...&quot; ../&gt;</span>
<span class="n">results_xpath</span> <span class="o">=</span> <span class="s1">&#39;//div[@class=&quot;jtfYYd&quot;]&#39;</span>
<span class="c1"># google *sections* are no usual *results*, we ignore them</span>
<span class="n">g_section_with_header</span> <span class="o">=</span> <span class="s1">&#39;./g-section-with-header&#39;</span>
<span class="c1"># the title is a h3 tag relative to the result group</span>
<span class="n">title_xpath</span> <span class="o">=</span> <span class="s1">&#39;.//h3[1]&#39;</span>
<span class="c1"># in the result group there is &lt;div class=&quot;yuRUbf&quot; ../&gt; it&#39;s first child is a &lt;a</span>
<span class="c1"># href=...&gt;</span>
<span class="n">href_xpath</span> <span class="o">=</span> <span class="s1">&#39;.//div[@class=&quot;yuRUbf&quot;]//a/@href&#39;</span>
<span class="c1"># in the result group there is &lt;div class=&quot;VwiC3b ...&quot; ../&gt; containing the *content*</span>
<span class="n">content_xpath</span> <span class="o">=</span> <span class="s1">&#39;.//div[contains(@class, &quot;VwiC3b&quot;)]&#39;</span>
<span class="c1"># Suggestions are links placed in a *card-section*, we extract only the text</span>
<span class="c1"># from the links not the links itself.</span>
<span class="n">suggestion_xpath</span> <span class="o">=</span> <span class="s1">&#39;//div[contains(@class, &quot;EIaa9b&quot;)]//a&#39;</span>
<div class="viewcode-block" id="get_lang_info"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google.get_lang_info">[docs]</a><span class="k">def</span> <span class="nf">get_lang_info</span><span class="p">(</span><span class="n">params</span><span class="p">,</span> <span class="n">lang_list</span><span class="p">,</span> <span class="n">custom_aliases</span><span class="p">,</span> <span class="n">supported_any_language</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Composing various language properties for the google engines.</span>
<span class="sd"> This function is called by the various google engines (:ref:`google web</span>
<span class="sd"> engine`, :ref:`google images engine`, :ref:`google news engine` and</span>
<span class="sd"> :ref:`google videos engine`).</span>
<span class="sd"> :param dict param: request parameters of the engine</span>
<span class="sd"> :param list lang_list: list of supported languages of the engine</span>
<span class="sd"> :py:obj:`ENGINES_LANGUAGES[engine-name] &lt;searx.data.ENGINES_LANGUAGES&gt;`</span>
<span class="sd"> :param dict lang_list: custom aliases for non standard language codes</span>
<span class="sd"> (used when calling :py:func:`searx.utils.match_language`)</span>
<span class="sd"> :param bool supported_any_language: When a language is not specified, the</span>
<span class="sd"> language interpretation is left up to Google to decide how the search</span>
<span class="sd"> results should be delivered. This argument is ``True`` for the google</span>
<span class="sd"> engine and ``False`` for the other engines (google-images, -news,</span>
<span class="sd"> -scholar, -videos).</span>
<span class="sd"> :rtype: dict</span>
<span class="sd"> :returns:</span>
<span class="sd"> Py-Dictionary with the key/value pairs:</span>
<span class="sd"> language:</span>
<span class="sd"> Return value from :py:func:`searx.utils.match_language`</span>
<span class="sd"> country:</span>
<span class="sd"> The country code (e.g. US, AT, CA, FR, DE ..)</span>
<span class="sd"> subdomain:</span>
<span class="sd"> Google subdomain :py:obj:`google_domains` that fits to the country</span>
<span class="sd"> code.</span>
<span class="sd"> params:</span>
<span class="sd"> Py-Dictionary with additional request arguments (can be passed to</span>
<span class="sd"> :py:func:`urllib.parse.urlencode`).</span>
<span class="sd"> headers:</span>
<span class="sd"> Py-Dictionary with additional HTTP headers (can be passed to</span>
<span class="sd"> request&#39;s headers)</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">ret_val</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;language&#39;</span><span class="p">:</span> <span class="kc">None</span><span class="p">,</span>
<span class="s1">&#39;country&#39;</span><span class="p">:</span> <span class="kc">None</span><span class="p">,</span>
<span class="s1">&#39;subdomain&#39;</span><span class="p">:</span> <span class="kc">None</span><span class="p">,</span>
<span class="s1">&#39;params&#39;</span><span class="p">:</span> <span class="p">{},</span>
<span class="s1">&#39;headers&#39;</span><span class="p">:</span> <span class="p">{},</span>
<span class="p">}</span>
<span class="c1"># language ...</span>
<span class="n">_lang</span> <span class="o">=</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;language&#39;</span><span class="p">]</span>
<span class="n">_any_language</span> <span class="o">=</span> <span class="n">_lang</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="o">==</span> <span class="s1">&#39;all&#39;</span>
<span class="k">if</span> <span class="n">_any_language</span><span class="p">:</span>
<span class="n">_lang</span> <span class="o">=</span> <span class="s1">&#39;en-US&#39;</span>
<span class="n">language</span> <span class="o">=</span> <span class="n">match_language</span><span class="p">(</span><span class="n">_lang</span><span class="p">,</span> <span class="n">lang_list</span><span class="p">,</span> <span class="n">custom_aliases</span><span class="p">)</span>
<span class="n">ret_val</span><span class="p">[</span><span class="s1">&#39;language&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">language</span>
<span class="c1"># country ...</span>
<span class="n">_l</span> <span class="o">=</span> <span class="n">_lang</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">_l</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="n">country</span> <span class="o">=</span> <span class="n">_l</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">country</span> <span class="o">=</span> <span class="n">_l</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
<span class="k">if</span> <span class="n">country</span> <span class="o">==</span> <span class="s1">&#39;EN&#39;</span><span class="p">:</span>
<span class="n">country</span> <span class="o">=</span> <span class="s1">&#39;US&#39;</span>
<span class="n">ret_val</span><span class="p">[</span><span class="s1">&#39;country&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">country</span>
<span class="c1"># subdomain ...</span>
<span class="n">ret_val</span><span class="p">[</span><span class="s1">&#39;subdomain&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;www.&#39;</span> <span class="o">+</span> <span class="n">google_domains</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">country</span><span class="o">.</span><span class="n">upper</span><span class="p">(),</span> <span class="s1">&#39;google.com&#39;</span><span class="p">)</span>
<span class="c1"># params &amp; headers</span>
<span class="n">lang_country</span> <span class="o">=</span> <span class="s1">&#39;</span><span class="si">%s</span><span class="s1">-</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">language</span><span class="p">,</span> <span class="n">country</span><span class="p">)</span> <span class="c1"># (en-US, en-EN, de-DE, de-AU, fr-FR ..)</span>
<span class="c1"># hl parameter:</span>
<span class="c1"># https://developers.google.com/custom-search/docs/xml_results#hlsp The</span>
<span class="c1"># Interface Language:</span>
<span class="c1"># https://developers.google.com/custom-search/docs/xml_results_appendices#interfaceLanguages</span>
<span class="n">ret_val</span><span class="p">[</span><span class="s1">&#39;params&#39;</span><span class="p">][</span><span class="s1">&#39;hl&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">lang_list</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">lang_country</span><span class="p">,</span> <span class="n">language</span><span class="p">)</span>
<span class="c1"># lr parameter:</span>
<span class="c1"># The lr (language restrict) parameter restricts search results to</span>
<span class="c1"># documents written in a particular language.</span>
<span class="c1"># https://developers.google.com/custom-search/docs/xml_results#lrsp</span>
<span class="c1"># Language Collection Values:</span>
<span class="c1"># https://developers.google.com/custom-search/docs/xml_results_appendices#languageCollections</span>
<span class="k">if</span> <span class="n">_any_language</span> <span class="ow">and</span> <span class="n">supported_any_language</span><span class="p">:</span>
<span class="c1"># interpretation is left up to Google (based on whoogle)</span>
<span class="c1">#</span>
<span class="c1"># - add parameter ``source=lnt``</span>
<span class="c1"># - don&#39;t use parameter ``lr``</span>
<span class="c1"># - don&#39;t add a ``Accept-Language`` HTTP header.</span>
<span class="n">ret_val</span><span class="p">[</span><span class="s1">&#39;params&#39;</span><span class="p">][</span><span class="s1">&#39;source&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;lnt&#39;</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># restricts search results to documents written in a particular</span>
<span class="c1"># language.</span>
<span class="n">ret_val</span><span class="p">[</span><span class="s1">&#39;params&#39;</span><span class="p">][</span><span class="s1">&#39;lr&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s2">&quot;lang_&quot;</span> <span class="o">+</span> <span class="n">lang_list</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">lang_country</span><span class="p">,</span> <span class="n">language</span><span class="p">)</span>
<span class="c1"># Accept-Language: fr-CH, fr;q=0.8, en;q=0.6, *;q=0.5</span>
<span class="n">ret_val</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">][</span><span class="s1">&#39;Accept-Language&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;,&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span>
<span class="p">[</span>
<span class="n">lang_country</span><span class="p">,</span>
<span class="n">language</span> <span class="o">+</span> <span class="s1">&#39;;q=0.8,&#39;</span><span class="p">,</span>
<span class="s1">&#39;en;q=0.6&#39;</span><span class="p">,</span>
<span class="s1">&#39;*;q=0.5&#39;</span><span class="p">,</span>
<span class="p">]</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">ret_val</span></div>
<span class="k">def</span> <span class="nf">detect_google_sorry</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="k">if</span> <span class="n">resp</span><span class="o">.</span><span class="n">url</span><span class="o">.</span><span class="n">host</span> <span class="o">==</span> <span class="s1">&#39;sorry.google.com&#39;</span> <span class="ow">or</span> <span class="n">resp</span><span class="o">.</span><span class="n">url</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">&#39;/sorry&#39;</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">SearxEngineCaptchaException</span><span class="p">()</span>
<div class="viewcode-block" id="request"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google.request">[docs]</a><span class="k">def</span> <span class="nf">request</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">params</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Google search request&quot;&quot;&quot;</span>
<span class="n">offset</span> <span class="o">=</span> <span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;pageno&#39;</span><span class="p">]</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> <span class="o">*</span> <span class="mi">10</span>
<span class="n">lang_info</span> <span class="o">=</span> <span class="n">get_lang_info</span><span class="p">(</span><span class="n">params</span><span class="p">,</span> <span class="n">supported_languages</span><span class="p">,</span> <span class="n">language_aliases</span><span class="p">,</span> <span class="kc">True</span><span class="p">)</span>
<span class="n">additional_parameters</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">if</span> <span class="n">use_mobile_ui</span><span class="p">:</span>
<span class="n">additional_parameters</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;asearch&#39;</span><span class="p">:</span> <span class="s1">&#39;arc&#39;</span><span class="p">,</span>
<span class="s1">&#39;async&#39;</span><span class="p">:</span> <span class="s1">&#39;use_ac:true,_fmt:pc&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># https://www.google.de/search?q=corona&amp;hl=de&amp;lr=lang_de&amp;start=0&amp;tbs=qdr%3Ad&amp;safe=medium</span>
<span class="n">query_url</span> <span class="o">=</span> <span class="p">(</span>
<span class="s1">&#39;https://&#39;</span>
<span class="o">+</span> <span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;subdomain&#39;</span><span class="p">]</span>
<span class="o">+</span> <span class="s1">&#39;/search&#39;</span>
<span class="o">+</span> <span class="s2">&quot;?&quot;</span>
<span class="o">+</span> <span class="n">urlencode</span><span class="p">(</span>
<span class="p">{</span>
<span class="s1">&#39;q&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
<span class="o">**</span><span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;params&#39;</span><span class="p">],</span>
<span class="s1">&#39;ie&#39;</span><span class="p">:</span> <span class="s2">&quot;utf8&quot;</span><span class="p">,</span>
<span class="s1">&#39;oe&#39;</span><span class="p">:</span> <span class="s2">&quot;utf8&quot;</span><span class="p">,</span>
<span class="s1">&#39;start&#39;</span><span class="p">:</span> <span class="n">offset</span><span class="p">,</span>
<span class="s1">&#39;filter&#39;</span><span class="p">:</span> <span class="s1">&#39;0&#39;</span><span class="p">,</span>
<span class="o">**</span><span class="n">additional_parameters</span><span class="p">,</span>
<span class="p">}</span>
<span class="p">)</span>
<span class="p">)</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]</span> <span class="ow">in</span> <span class="n">time_range_dict</span><span class="p">:</span>
<span class="n">query_url</span> <span class="o">+=</span> <span class="s1">&#39;&amp;&#39;</span> <span class="o">+</span> <span class="n">urlencode</span><span class="p">({</span><span class="s1">&#39;tbs&#39;</span><span class="p">:</span> <span class="s1">&#39;qdr:&#39;</span> <span class="o">+</span> <span class="n">time_range_dict</span><span class="p">[</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]]})</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;safesearch&#39;</span><span class="p">]:</span>
<span class="n">query_url</span> <span class="o">+=</span> <span class="s1">&#39;&amp;&#39;</span> <span class="o">+</span> <span class="n">urlencode</span><span class="p">({</span><span class="s1">&#39;safe&#39;</span><span class="p">:</span> <span class="n">filter_mapping</span><span class="p">[</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;safesearch&#39;</span><span class="p">]]})</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">query_url</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">])</span>
<span class="k">if</span> <span class="n">use_mobile_ui</span><span class="p">:</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">][</span><span class="s1">&#39;Accept&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;*/*&#39;</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">][</span><span class="s1">&#39;Accept&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8&#39;</span>
<span class="k">return</span> <span class="n">params</span></div>
<div class="viewcode-block" id="response"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google.response">[docs]</a><span class="k">def</span> <span class="nf">response</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Get response from google&#39;s search request&quot;&quot;&quot;</span>
<span class="n">detect_google_sorry</span><span class="p">(</span><span class="n">resp</span><span class="p">)</span>
<span class="n">results</span> <span class="o">=</span> <span class="p">[]</span>
<span class="c1"># convert the text to dom</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="c1"># results --&gt; answer</span>
<span class="n">answer_list</span> <span class="o">=</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//div[contains(@class, &quot;LGOjhe&quot;)]&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">answer_list</span><span class="p">:</span>
<span class="n">answer_list</span> <span class="o">=</span> <span class="p">[</span><span class="n">_</span><span class="o">.</span><span class="n">xpath</span><span class="p">(</span><span class="s2">&quot;normalize-space()&quot;</span><span class="p">)</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="n">answer_list</span><span class="p">]</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s1">&#39;answer&#39;</span><span class="p">:</span> <span class="s1">&#39; &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">answer_list</span><span class="p">)})</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;did not find &#39;answer&#39;&quot;</span><span class="p">)</span>
<span class="c1"># results --&gt; number_of_results</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">use_mobile_ui</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">_txt</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//div[@id=&quot;result-stats&quot;]//text()&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">_digit</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="n">n</span> <span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="n">_txt</span> <span class="k">if</span> <span class="n">n</span><span class="o">.</span><span class="n">isdigit</span><span class="p">()])</span>
<span class="n">number_of_results</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">_digit</span><span class="p">)</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s1">&#39;number_of_results&#39;</span><span class="p">:</span> <span class="n">number_of_results</span><span class="p">})</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="c1"># pylint: disable=broad-except</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;did not &#39;number_of_results&#39;&quot;</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="n">exc_info</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
<span class="c1"># parse results</span>
<span class="k">for</span> <span class="n">result</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">results_xpath</span><span class="p">):</span>
<span class="c1"># google *sections*</span>
<span class="k">if</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">g_section_with_header</span><span class="p">)):</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;ingoring &lt;g-section-with-header&gt;&quot;</span><span class="p">)</span>
<span class="k">continue</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">title_tag</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">title_xpath</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">title_tag</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="c1"># this not one of the common google results *section*</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s1">&#39;ingoring item from the result_xpath list: missing title&#39;</span><span class="p">)</span>
<span class="k">continue</span>
<span class="n">title</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">title_tag</span><span class="p">)</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">href_xpath</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">url</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">continue</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">content_xpath</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">),</span> <span class="n">allow_none</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
<span class="k">if</span> <span class="n">content</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s1">&#39;ingoring item from the result_xpath list: missing content of title &quot;</span><span class="si">%s</span><span class="s1">&quot;&#39;</span><span class="p">,</span> <span class="n">title</span><span class="p">)</span>
<span class="k">continue</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s1">&#39;add link to results: </span><span class="si">%s</span><span class="s1">&#39;</span><span class="p">,</span> <span class="n">title</span><span class="p">)</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="n">url</span><span class="p">,</span> <span class="s1">&#39;title&#39;</span><span class="p">:</span> <span class="n">title</span><span class="p">,</span> <span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">content</span><span class="p">})</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="c1"># pylint: disable=broad-except</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="n">exc_info</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
<span class="k">continue</span>
<span class="c1"># parse suggestion</span>
<span class="k">for</span> <span class="n">suggestion</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">suggestion_xpath</span><span class="p">):</span>
<span class="c1"># append suggestion</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s1">&#39;suggestion&#39;</span><span class="p">:</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">suggestion</span><span class="p">)})</span>
<span class="c1"># return results</span>
<span class="k">return</span> <span class="n">results</span></div>
<span class="c1"># get supported languages from their site</span>
<span class="k">def</span> <span class="nf">_fetch_supported_languages</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="n">ret_val</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="n">radio_buttons</span> <span class="o">=</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//*[@id=&quot;langSec&quot;]//input[@name=&quot;lr&quot;]&#39;</span><span class="p">)</span>
<span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">radio_buttons</span><span class="p">:</span>
<span class="n">name</span> <span class="o">=</span> <span class="n">x</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;data-name&quot;</span><span class="p">)</span>
<span class="n">code</span> <span class="o">=</span> <span class="n">x</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;value&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">)[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>
<span class="n">ret_val</span><span class="p">[</span><span class="n">code</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span><span class="s2">&quot;name&quot;</span><span class="p">:</span> <span class="n">name</span><span class="p">}</span>
<span class="k">return</span> <span class="n">ret_val</span>
</pre></div>
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<h1>Source code for searx.engines.google_images</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;This is the implementation of the google images engine.</span>
<span class="sd">.. admonition:: Content-Security-Policy (CSP)</span>
<span class="sd"> This engine needs to allow images from the `data URLs`_ (prefixed with the</span>
<span class="sd"> ``data:`` scheme)::</span>
<span class="sd"> Header set Content-Security-Policy &quot;img-src &#39;self&#39; data: ;&quot;</span>
<span class="sd">.. _data URLs:</span>
<span class="sd"> https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">import</span> <span class="nn">re</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="kn">import</span> <span class="n">urlencode</span><span class="p">,</span> <span class="n">unquote</span>
<span class="kn">from</span> <span class="nn">lxml</span> <span class="kn">import</span> <span class="n">html</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="p">(</span>
<span class="n">eval_xpath</span><span class="p">,</span>
<span class="n">eval_xpath_list</span><span class="p">,</span>
<span class="n">eval_xpath_getindex</span><span class="p">,</span>
<span class="n">extract_text</span><span class="p">,</span>
<span class="p">)</span>
<span class="kn">from</span> <span class="nn">searx.engines.google</span> <span class="kn">import</span> <span class="p">(</span>
<span class="n">get_lang_info</span><span class="p">,</span>
<span class="n">time_range_dict</span><span class="p">,</span>
<span class="n">detect_google_sorry</span><span class="p">,</span>
<span class="p">)</span>
<span class="c1"># pylint: disable=unused-import</span>
<span class="kn">from</span> <span class="nn">searx.engines.google</span> <span class="kn">import</span> <span class="n">supported_languages_url</span><span class="p">,</span> <span class="n">_fetch_supported_languages</span>
<span class="c1"># pylint: enable=unused-import</span>
<span class="c1"># about</span>
<span class="n">about</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;website&quot;</span><span class="p">:</span> <span class="s1">&#39;https://images.google.com&#39;</span><span class="p">,</span>
<span class="s2">&quot;wikidata_id&quot;</span><span class="p">:</span> <span class="s1">&#39;Q521550&#39;</span><span class="p">,</span>
<span class="s2">&quot;official_api_documentation&quot;</span><span class="p">:</span> <span class="s1">&#39;https://developers.google.com/custom-search&#39;</span><span class="p">,</span>
<span class="s2">&quot;use_official_api&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;require_api_key&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;results&quot;</span><span class="p">:</span> <span class="s1">&#39;HTML&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># engine dependent config</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;images&#39;</span><span class="p">,</span> <span class="s1">&#39;web&#39;</span><span class="p">]</span>
<span class="n">paging</span> <span class="o">=</span> <span class="kc">False</span>
<span class="n">use_locale_domain</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">time_range_support</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">safesearch</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">filter_mapping</span> <span class="o">=</span> <span class="p">{</span><span class="mi">0</span><span class="p">:</span> <span class="s1">&#39;images&#39;</span><span class="p">,</span> <span class="mi">1</span><span class="p">:</span> <span class="s1">&#39;active&#39;</span><span class="p">,</span> <span class="mi">2</span><span class="p">:</span> <span class="s1">&#39;active&#39;</span><span class="p">}</span>
<div class="viewcode-block" id="scrap_out_thumbs"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google_images.scrap_out_thumbs">[docs]</a><span class="k">def</span> <span class="nf">scrap_out_thumbs</span><span class="p">(</span><span class="n">dom</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Scrap out thumbnail data from &lt;script&gt; tags.&quot;&quot;&quot;</span>
<span class="n">ret_val</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">script</span> <span class="ow">in</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//script[contains(., &quot;_setImgSrc(&quot;)]&#39;</span><span class="p">):</span>
<span class="n">_script</span> <span class="o">=</span> <span class="n">script</span><span class="o">.</span><span class="n">text</span>
<span class="c1"># _setImgSrc(&#39;0&#39;,&#39;data:image\/jpeg;base64,\/9j\/4AAQSkZJR ....&#39;);</span>
<span class="n">_thumb_no</span><span class="p">,</span> <span class="n">_img_data</span> <span class="o">=</span> <span class="n">_script</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="s2">&quot;_setImgSrc(&quot;</span><span class="p">)</span> <span class="p">:</span> <span class="o">-</span><span class="mi">2</span><span class="p">]</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">&quot;,&quot;</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="n">_thumb_no</span> <span class="o">=</span> <span class="n">_thumb_no</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s2">&quot;&#39;&quot;</span><span class="p">,</span> <span class="s2">&quot;&quot;</span><span class="p">)</span>
<span class="n">_img_data</span> <span class="o">=</span> <span class="n">_img_data</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s2">&quot;&#39;&quot;</span><span class="p">,</span> <span class="s2">&quot;&quot;</span><span class="p">)</span>
<span class="n">_img_data</span> <span class="o">=</span> <span class="n">_img_data</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="sa">r</span><span class="s2">&quot;\/&quot;</span><span class="p">,</span> <span class="sa">r</span><span class="s2">&quot;/&quot;</span><span class="p">)</span>
<span class="n">ret_val</span><span class="p">[</span><span class="n">_thumb_no</span><span class="p">]</span> <span class="o">=</span> <span class="n">_img_data</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="sa">r</span><span class="s2">&quot;\x3d&quot;</span><span class="p">,</span> <span class="s2">&quot;=&quot;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">ret_val</span></div>
<span class="c1"># [0, &quot;-H96xjSoW5DsgM&quot;, [&quot;https://encrypted-tbn0.gstatic.com/images?q...&quot;, 155, 324]</span>
<span class="c1"># , [&quot;https://assets.cdn.moviepilot.de/files/d3bf..&quot;, 576, 1200],</span>
<span class="n">_RE_JS_IMAGE_URL</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span>
<span class="sa">r</span><span class="s1">&#39;&quot;&#39;</span>
<span class="sa">r</span><span class="s1">&#39;([^&quot;]*)&#39;</span> <span class="c1"># -H96xjSoW5DsgM</span>
<span class="sa">r</span><span class="s1">&#39;&quot;,\s*\[&quot;&#39;</span>
<span class="sa">r</span><span class="s1">&#39;https://[^\.]*\.gstatic.com/images[^&quot;]*&#39;</span> <span class="c1"># https://encrypted-tbn0.gstatic.com/images?q...</span>
<span class="sa">r</span><span class="s1">&#39;[^\[]*\[&quot;&#39;</span>
<span class="sa">r</span><span class="s1">&#39;(https?://[^&quot;]*)&#39;</span> <span class="c1"># https://assets.cdn.moviepilot.de/files/d3bf...</span>
<span class="p">)</span>
<span class="k">def</span> <span class="nf">parse_urls_img_from_js</span><span class="p">(</span><span class="n">dom</span><span class="p">):</span>
<span class="c1"># There are two HTML script tags starting with a JS function</span>
<span class="c1"># &#39;AF_initDataCallback(...)&#39;</span>
<span class="c1">#</span>
<span class="c1"># &lt;script nonce=&quot;zscm+Ab/JzBk1Qd4GY6wGQ&quot;&gt;</span>
<span class="c1"># AF_initDataCallback({key: &#39;ds:0&#39;, hash: &#39;1&#39;, data:[], sideChannel: {}});</span>
<span class="c1"># &lt;/script&gt;</span>
<span class="c1"># &lt;script nonce=&quot;zscm+Ab/JzBk1Qd4GY6wGQ&quot;&gt;</span>
<span class="c1"># AF_initDataCallback({key: &#39;ds:1&#39;, hash: &#39;2&#39;, data:[null,[[[&quot;online_chips&quot;,[[&quot;the big&quot;,</span>
<span class="c1"># [&quot;https://encrypted-tbn0.gstatic.com/images?q...&quot;,null,null,true,[null,0],f</span>
<span class="c1"># ...</span>
<span class="c1"># &lt;/script&gt;</span>
<span class="c1">#</span>
<span class="c1"># The second script contains the URLs of the images.</span>
<span class="c1"># The AF_initDataCallback(..) is called with very large dictionary, that</span>
<span class="c1"># looks like JSON but it is not JSON since it contains JS variables and</span>
<span class="c1"># constants like &#39;null&#39; (we can&#39;t use a JSON parser for).</span>
<span class="c1">#</span>
<span class="c1"># The alternative is to parse the entire &lt;script&gt; and find all image URLs by</span>
<span class="c1"># a regular expression.</span>
<span class="n">img_src_script</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//script[contains(., &quot;AF_initDataCallback({key: &quot;)]&#39;</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span><span class="o">.</span><span class="n">text</span>
<span class="n">data_id_to_img_url</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">data_id</span><span class="p">,</span> <span class="n">url</span> <span class="ow">in</span> <span class="n">_RE_JS_IMAGE_URL</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="n">img_src_script</span><span class="p">):</span>
<span class="n">data_id_to_img_url</span><span class="p">[</span><span class="n">data_id</span><span class="p">]</span> <span class="o">=</span> <span class="n">url</span>
<span class="k">return</span> <span class="n">data_id_to_img_url</span>
<div class="viewcode-block" id="get_img_url_by_data_id"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google_images.get_img_url_by_data_id">[docs]</a><span class="k">def</span> <span class="nf">get_img_url_by_data_id</span><span class="p">(</span><span class="n">data_id_to_img_url</span><span class="p">,</span> <span class="n">img_node</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Get full image URL by @data-id from parent element.&quot;&quot;&quot;</span>
<span class="n">data_id</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">img_node</span><span class="p">,</span> <span class="s1">&#39;../../../@data-id&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">img_url</span> <span class="o">=</span> <span class="n">data_id_to_img_url</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">data_id</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">)</span>
<span class="n">img_url</span> <span class="o">=</span> <span class="n">unquote</span><span class="p">(</span><span class="n">img_url</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="sa">r</span><span class="s1">&#39;\u00&#39;</span><span class="p">,</span> <span class="sa">r</span><span class="s1">&#39;%&#39;</span><span class="p">))</span>
<span class="k">return</span> <span class="n">img_url</span></div>
<div class="viewcode-block" id="request"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google_images.request">[docs]</a><span class="k">def</span> <span class="nf">request</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">params</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Google-Video search request&quot;&quot;&quot;</span>
<span class="n">lang_info</span> <span class="o">=</span> <span class="n">get_lang_info</span><span class="p">(</span><span class="n">params</span><span class="p">,</span> <span class="n">supported_languages</span><span class="p">,</span> <span class="n">language_aliases</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;HTTP header Accept-Language --&gt; </span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">][</span><span class="s1">&#39;Accept-Language&#39;</span><span class="p">])</span>
<span class="n">query_url</span> <span class="o">=</span> <span class="p">(</span>
<span class="s1">&#39;https://&#39;</span>
<span class="o">+</span> <span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;subdomain&#39;</span><span class="p">]</span>
<span class="o">+</span> <span class="s1">&#39;/search&#39;</span>
<span class="o">+</span> <span class="s2">&quot;?&quot;</span>
<span class="o">+</span> <span class="n">urlencode</span><span class="p">(</span>
<span class="p">{</span>
<span class="s1">&#39;q&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
<span class="s1">&#39;tbm&#39;</span><span class="p">:</span> <span class="s2">&quot;isch&quot;</span><span class="p">,</span>
<span class="o">**</span><span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;params&#39;</span><span class="p">],</span>
<span class="s1">&#39;ie&#39;</span><span class="p">:</span> <span class="s2">&quot;utf8&quot;</span><span class="p">,</span>
<span class="s1">&#39;oe&#39;</span><span class="p">:</span> <span class="s2">&quot;utf8&quot;</span><span class="p">,</span>
<span class="s1">&#39;num&#39;</span><span class="p">:</span> <span class="mi">30</span><span class="p">,</span>
<span class="p">}</span>
<span class="p">)</span>
<span class="p">)</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]</span> <span class="ow">in</span> <span class="n">time_range_dict</span><span class="p">:</span>
<span class="n">query_url</span> <span class="o">+=</span> <span class="s1">&#39;&amp;&#39;</span> <span class="o">+</span> <span class="n">urlencode</span><span class="p">({</span><span class="s1">&#39;tbs&#39;</span><span class="p">:</span> <span class="s1">&#39;qdr:&#39;</span> <span class="o">+</span> <span class="n">time_range_dict</span><span class="p">[</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]]})</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;safesearch&#39;</span><span class="p">]:</span>
<span class="n">query_url</span> <span class="o">+=</span> <span class="s1">&#39;&amp;&#39;</span> <span class="o">+</span> <span class="n">urlencode</span><span class="p">({</span><span class="s1">&#39;safe&#39;</span><span class="p">:</span> <span class="n">filter_mapping</span><span class="p">[</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;safesearch&#39;</span><span class="p">]]})</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">query_url</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">])</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">][</span><span class="s1">&#39;Accept&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8&#39;</span>
<span class="k">return</span> <span class="n">params</span></div>
<div class="viewcode-block" id="response"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google_images.response">[docs]</a><span class="k">def</span> <span class="nf">response</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Get response from google&#39;s search request&quot;&quot;&quot;</span>
<span class="n">results</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">detect_google_sorry</span><span class="p">(</span><span class="n">resp</span><span class="p">)</span>
<span class="c1"># convert the text to dom</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="n">img_bas64_map</span> <span class="o">=</span> <span class="n">scrap_out_thumbs</span><span class="p">(</span><span class="n">dom</span><span class="p">)</span>
<span class="n">data_id_to_img_url</span> <span class="o">=</span> <span class="n">parse_urls_img_from_js</span><span class="p">(</span><span class="n">dom</span><span class="p">)</span>
<span class="c1"># parse results</span>
<span class="c1">#</span>
<span class="c1"># root element::</span>
<span class="c1"># &lt;div id=&quot;islmp&quot; ..&gt;</span>
<span class="c1"># result div per image::</span>
<span class="c1"># &lt;div jsmodel=&quot;tTXmib&quot;&gt; / &lt;div jsaction=&quot;...&quot; data-id=&quot;...&quot;</span>
<span class="c1"># The data-id matches to a item in a json-data structure in::</span>
<span class="c1"># &lt;script nonce=&quot;I+vqelcy/01CKiBJi5Z1Ow&quot;&gt;AF_initDataCallback({key: &#39;ds:1&#39;, ... data:function(){return [ ...</span>
<span class="c1"># In this structure the link to the origin PNG, JPG or whatever is given</span>
<span class="c1"># first link per image-div contains a &lt;img&gt; with the data-iid for bas64 encoded image data::</span>
<span class="c1"># &lt;img class=&quot;rg_i Q4LuWd&quot; data-iid=&quot;0&quot;</span>
<span class="c1"># second link per image-div is the target link::</span>
<span class="c1"># &lt;a class=&quot;VFACy kGQAp&quot; href=&quot;https://en.wikipedia.org/wiki/The_Sacrament_of_the_Last_Supper&quot;&gt;</span>
<span class="c1"># the second link also contains two div tags with the *description* and *publisher*::</span>
<span class="c1"># &lt;div class=&quot;WGvvNb&quot;&gt;The Sacrament of the Last Supper ...&lt;/div&gt;</span>
<span class="c1"># &lt;div class=&quot;fxgdke&quot;&gt;en.wikipedia.org&lt;/div&gt;</span>
<span class="n">root</span> <span class="o">=</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//div[@id=&quot;islmp&quot;]&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">root</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s2">&quot;did not find root element id=&#39;islmp&#39;&quot;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">results</span>
<span class="n">root</span> <span class="o">=</span> <span class="n">root</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">for</span> <span class="n">img_node</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">root</span><span class="p">,</span> <span class="s1">&#39;.//img[contains(@class, &quot;rg_i&quot;)]&#39;</span><span class="p">):</span>
<span class="n">img_alt</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">img_node</span><span class="p">,</span> <span class="s1">&#39;@alt&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">img_base64_id</span> <span class="o">=</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">img_node</span><span class="p">,</span> <span class="s1">&#39;@data-iid&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">img_base64_id</span><span class="p">:</span>
<span class="n">img_base64_id</span> <span class="o">=</span> <span class="n">img_base64_id</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">thumbnail_src</span> <span class="o">=</span> <span class="n">img_bas64_map</span><span class="p">[</span><span class="n">img_base64_id</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">thumbnail_src</span> <span class="o">=</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">img_node</span><span class="p">,</span> <span class="s1">&#39;@src&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">thumbnail_src</span><span class="p">:</span>
<span class="n">thumbnail_src</span> <span class="o">=</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">img_node</span><span class="p">,</span> <span class="s1">&#39;@data-src&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">thumbnail_src</span><span class="p">:</span>
<span class="n">thumbnail_src</span> <span class="o">=</span> <span class="n">thumbnail_src</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">thumbnail_src</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="n">link_node</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">img_node</span><span class="p">,</span> <span class="s1">&#39;../../../a[2]&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">link_node</span><span class="p">,</span> <span class="s1">&#39;@href&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">url</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s2">&quot;missing @href in node: </span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">html</span><span class="o">.</span><span class="n">tostring</span><span class="p">(</span><span class="n">link_node</span><span class="p">))</span>
<span class="k">continue</span>
<span class="n">pub_nodes</span> <span class="o">=</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">link_node</span><span class="p">,</span> <span class="s1">&#39;./div/div&#39;</span><span class="p">)</span>
<span class="n">pub_descr</span> <span class="o">=</span> <span class="n">img_alt</span>
<span class="n">pub_source</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="k">if</span> <span class="n">pub_nodes</span><span class="p">:</span>
<span class="n">pub_descr</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">pub_nodes</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="n">pub_source</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">pub_nodes</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="n">src_url</span> <span class="o">=</span> <span class="n">get_img_url_by_data_id</span><span class="p">(</span><span class="n">data_id_to_img_url</span><span class="p">,</span> <span class="n">img_node</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">src_url</span><span class="p">:</span>
<span class="n">src_url</span> <span class="o">=</span> <span class="n">thumbnail_src</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">(</span>
<span class="p">{</span>
<span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="n">url</span><span class="p">,</span>
<span class="s1">&#39;title&#39;</span><span class="p">:</span> <span class="n">img_alt</span><span class="p">,</span>
<span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">pub_descr</span><span class="p">,</span>
<span class="s1">&#39;source&#39;</span><span class="p">:</span> <span class="n">pub_source</span><span class="p">,</span>
<span class="s1">&#39;img_src&#39;</span><span class="p">:</span> <span class="n">src_url</span><span class="p">,</span>
<span class="s1">&#39;thumbnail_src&#39;</span><span class="p">:</span> <span class="n">thumbnail_src</span><span class="p">,</span>
<span class="s1">&#39;template&#39;</span><span class="p">:</span> <span class="s1">&#39;images.html&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">results</span></div>
</pre></div>
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<h1>Source code for searx.engines.google_news</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;This is the implementation of the google news engine. The google news API</span>
<span class="sd">ignores some parameters from the common :ref:`google API`:</span>
<span class="sd">- num_ : the number of search results is ignored</span>
<span class="sd">- save_ : is ignored / Google-News results are always *SafeSearch*</span>
<span class="sd">.. _num: https://developers.google.com/custom-search/docs/xml_results#numsp</span>
<span class="sd">.. _save: https://developers.google.com/custom-search/docs/xml_results#safesp</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="c1"># pylint: disable=invalid-name</span>
<span class="kn">import</span> <span class="nn">binascii</span>
<span class="kn">from</span> <span class="nn">datetime</span> <span class="kn">import</span> <span class="n">datetime</span>
<span class="kn">import</span> <span class="nn">re</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="kn">import</span> <span class="n">urlencode</span>
<span class="kn">from</span> <span class="nn">base64</span> <span class="kn">import</span> <span class="n">b64decode</span>
<span class="kn">from</span> <span class="nn">lxml</span> <span class="kn">import</span> <span class="n">html</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="p">(</span>
<span class="n">eval_xpath</span><span class="p">,</span>
<span class="n">eval_xpath_list</span><span class="p">,</span>
<span class="n">eval_xpath_getindex</span><span class="p">,</span>
<span class="n">extract_text</span><span class="p">,</span>
<span class="p">)</span>
<span class="c1"># pylint: disable=unused-import</span>
<span class="kn">from</span> <span class="nn">searx.engines.google</span> <span class="kn">import</span> <span class="p">(</span>
<span class="n">supported_languages_url</span><span class="p">,</span>
<span class="n">_fetch_supported_languages</span><span class="p">,</span>
<span class="p">)</span>
<span class="c1"># pylint: enable=unused-import</span>
<span class="kn">from</span> <span class="nn">searx.engines.google</span> <span class="kn">import</span> <span class="p">(</span>
<span class="n">get_lang_info</span><span class="p">,</span>
<span class="n">detect_google_sorry</span><span class="p">,</span>
<span class="p">)</span>
<span class="c1"># about</span>
<span class="n">about</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;website&quot;</span><span class="p">:</span> <span class="s1">&#39;https://news.google.com&#39;</span><span class="p">,</span>
<span class="s2">&quot;wikidata_id&quot;</span><span class="p">:</span> <span class="s1">&#39;Q12020&#39;</span><span class="p">,</span>
<span class="s2">&quot;official_api_documentation&quot;</span><span class="p">:</span> <span class="s1">&#39;https://developers.google.com/custom-search&#39;</span><span class="p">,</span>
<span class="s2">&quot;use_official_api&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;require_api_key&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;results&quot;</span><span class="p">:</span> <span class="s1">&#39;HTML&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># compared to other google engines google-news has a different time range</span>
<span class="c1"># support. The time range is included in the search term.</span>
<span class="n">time_range_dict</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;day&#39;</span><span class="p">:</span> <span class="s1">&#39;when:1d&#39;</span><span class="p">,</span>
<span class="s1">&#39;week&#39;</span><span class="p">:</span> <span class="s1">&#39;when:7d&#39;</span><span class="p">,</span>
<span class="s1">&#39;month&#39;</span><span class="p">:</span> <span class="s1">&#39;when:1m&#39;</span><span class="p">,</span>
<span class="s1">&#39;year&#39;</span><span class="p">:</span> <span class="s1">&#39;when:1y&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># engine dependent config</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;news&#39;</span><span class="p">]</span>
<span class="n">paging</span> <span class="o">=</span> <span class="kc">False</span>
<span class="n">use_locale_domain</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">time_range_support</span> <span class="o">=</span> <span class="kc">True</span>
<span class="c1"># Google-News results are always *SafeSearch*. Option &#39;safesearch&#39; is set to</span>
<span class="c1"># False here, otherwise checker will report safesearch-errors::</span>
<span class="c1">#</span>
<span class="c1"># safesearch : results are identitical for safesearch=0 and safesearch=2</span>
<span class="n">safesearch</span> <span class="o">=</span> <span class="kc">False</span>
<div class="viewcode-block" id="request"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google_news.request">[docs]</a><span class="k">def</span> <span class="nf">request</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">params</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Google-News search request&quot;&quot;&quot;</span>
<span class="n">lang_info</span> <span class="o">=</span> <span class="n">get_lang_info</span><span class="p">(</span><span class="n">params</span><span class="p">,</span> <span class="n">supported_languages</span><span class="p">,</span> <span class="n">language_aliases</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;HTTP header Accept-Language --&gt; </span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">][</span><span class="s1">&#39;Accept-Language&#39;</span><span class="p">])</span>
<span class="c1"># google news has only one domain</span>
<span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;subdomain&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;news.google.com&#39;</span>
<span class="n">ceid</span> <span class="o">=</span> <span class="s2">&quot;</span><span class="si">%s</span><span class="s2">:</span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;country&#39;</span><span class="p">],</span> <span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;language&#39;</span><span class="p">])</span>
<span class="c1"># google news redirects en to en-US</span>
<span class="k">if</span> <span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;params&#39;</span><span class="p">][</span><span class="s1">&#39;hl&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s1">&#39;en&#39;</span><span class="p">:</span>
<span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;params&#39;</span><span class="p">][</span><span class="s1">&#39;hl&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;en-US&#39;</span>
<span class="c1"># Very special to google-news compared to other google engines, the time</span>
<span class="c1"># range is included in the search term.</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]:</span>
<span class="n">query</span> <span class="o">+=</span> <span class="s1">&#39; &#39;</span> <span class="o">+</span> <span class="n">time_range_dict</span><span class="p">[</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]]</span>
<span class="n">query_url</span> <span class="o">=</span> <span class="p">(</span>
<span class="s1">&#39;https://&#39;</span>
<span class="o">+</span> <span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;subdomain&#39;</span><span class="p">]</span>
<span class="o">+</span> <span class="s1">&#39;/search&#39;</span>
<span class="o">+</span> <span class="s2">&quot;?&quot;</span>
<span class="o">+</span> <span class="n">urlencode</span><span class="p">(</span>
<span class="p">{</span>
<span class="s1">&#39;q&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
<span class="o">**</span><span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;params&#39;</span><span class="p">],</span>
<span class="s1">&#39;ie&#39;</span><span class="p">:</span> <span class="s2">&quot;utf8&quot;</span><span class="p">,</span>
<span class="s1">&#39;oe&#39;</span><span class="p">:</span> <span class="s2">&quot;utf8&quot;</span><span class="p">,</span>
<span class="s1">&#39;gl&#39;</span><span class="p">:</span> <span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;country&#39;</span><span class="p">],</span>
<span class="p">}</span>
<span class="p">)</span>
<span class="o">+</span> <span class="p">(</span><span class="s1">&#39;&amp;ceid=</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">ceid</span><span class="p">)</span>
<span class="p">)</span> <span class="c1"># ceid includes a &#39;:&#39; character which must not be urlencoded</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">query_url</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">])</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">][</span><span class="s1">&#39;Accept&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8&#39;</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">][</span><span class="s1">&#39;Cookie&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s2">&quot;CONSENT=YES+cb.</span><span class="si">%s</span><span class="s2">-14-p0.en+F+941;&quot;</span> <span class="o">%</span> <span class="n">datetime</span><span class="o">.</span><span class="n">now</span><span class="p">()</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="s2">&quot;%Y%m</span><span class="si">%d</span><span class="s2">&quot;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">params</span></div>
<div class="viewcode-block" id="response"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google_news.response">[docs]</a><span class="k">def</span> <span class="nf">response</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Get response from google&#39;s search request&quot;&quot;&quot;</span>
<span class="n">results</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">detect_google_sorry</span><span class="p">(</span><span class="n">resp</span><span class="p">)</span>
<span class="c1"># convert the text to dom</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="k">for</span> <span class="n">result</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//div[@class=&quot;xrnccd&quot;]&#39;</span><span class="p">):</span>
<span class="c1"># The first &lt;a&gt; tag in the &lt;article&gt; contains the link to the</span>
<span class="c1"># article The href attribute of the &lt;a&gt; is a google internal link,</span>
<span class="c1"># we can&#39;t use. The real link is hidden in the jslog attribute:</span>
<span class="c1">#</span>
<span class="c1"># &lt;a ...</span>
<span class="c1"># jslog=&quot;95014; 4:https://www.cnn.com/.../index.html; track:click&quot;</span>
<span class="c1"># href=&quot;./articles/CAIiENu3nGS...?hl=en-US&amp;amp;gl=US&amp;amp;ceid=US%3Aen&quot;</span>
<span class="c1"># ... /&gt;</span>
<span class="n">jslog</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;./article/a/@jslog&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="s1">&#39;http[^;]*&#39;</span><span class="p">,</span> <span class="n">jslog</span><span class="p">)</span>
<span class="k">if</span> <span class="n">url</span><span class="p">:</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">url</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># The real URL is base64 encoded in the json attribute:</span>
<span class="c1"># jslog=&quot;95014; 5:W251bGwsbnVsbCxudW...giXQ==; track:click&quot;</span>
<span class="n">jslog</span> <span class="o">=</span> <span class="n">jslog</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">&quot;;&quot;</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;:&#39;</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">padding</span> <span class="o">=</span> <span class="p">(</span><span class="mi">4</span> <span class="o">-</span> <span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">jslog</span><span class="p">)</span> <span class="o">%</span> <span class="mi">4</span><span class="p">))</span> <span class="o">*</span> <span class="s2">&quot;=&quot;</span>
<span class="n">jslog</span> <span class="o">=</span> <span class="n">b64decode</span><span class="p">(</span><span class="n">jslog</span> <span class="o">+</span> <span class="n">padding</span><span class="p">)</span>
<span class="k">except</span> <span class="n">binascii</span><span class="o">.</span><span class="n">Error</span><span class="p">:</span>
<span class="c1"># URL cant be read, skip this result</span>
<span class="k">continue</span>
<span class="c1"># now we have : b&#39;[null, ... null,&quot;https://www.cnn.com/.../index.html&quot;]&#39;</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="s1">&#39;http[^;&quot;]*&#39;</span><span class="p">,</span> <span class="nb">str</span><span class="p">(</span><span class="n">jslog</span><span class="p">))[</span><span class="mi">0</span><span class="p">]</span>
<span class="c1"># the first &lt;h3&gt; tag in the &lt;article&gt; contains the title of the link</span>
<span class="n">title</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;./article/h3[1]&#39;</span><span class="p">))</span>
<span class="c1"># the first &lt;div&gt; tag in the &lt;article&gt; contains the content of the link</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;./article/div[1]&#39;</span><span class="p">))</span>
<span class="c1"># the second &lt;div&gt; tag contains origin publisher and the publishing date</span>
<span class="n">pub_date</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;./article/div[2]//time&#39;</span><span class="p">))</span>
<span class="n">pub_origin</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;./article/div[2]//a&#39;</span><span class="p">))</span>
<span class="n">pub_info</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">if</span> <span class="n">pub_origin</span><span class="p">:</span>
<span class="n">pub_info</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pub_origin</span><span class="p">)</span>
<span class="k">if</span> <span class="n">pub_date</span><span class="p">:</span>
<span class="c1"># The pub_date is mostly a string like &#39;yesertday&#39;, not a real</span>
<span class="c1"># timezone date or time. Therefore we can&#39;t use publishedDate.</span>
<span class="n">pub_info</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pub_date</span><span class="p">)</span>
<span class="n">pub_info</span> <span class="o">=</span> <span class="s1">&#39;, &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">pub_info</span><span class="p">)</span>
<span class="k">if</span> <span class="n">pub_info</span><span class="p">:</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">pub_info</span> <span class="o">+</span> <span class="s1">&#39;: &#39;</span> <span class="o">+</span> <span class="n">content</span>
<span class="c1"># The image URL is located in a preceding sibling &lt;img&gt; tag, e.g.:</span>
<span class="c1"># &quot;https://lh3.googleusercontent.com/DjhQh7DMszk.....z=-p-h100-w100&quot;</span>
<span class="c1"># These URL are long but not personalized (double checked via tor).</span>
<span class="n">img_src</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">result</span><span class="o">.</span><span class="n">xpath</span><span class="p">(</span><span class="s1">&#39;preceding-sibling::a/figure/img/@src&#39;</span><span class="p">))</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">(</span>
<span class="p">{</span>
<span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="n">url</span><span class="p">,</span>
<span class="s1">&#39;title&#39;</span><span class="p">:</span> <span class="n">title</span><span class="p">,</span>
<span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">content</span><span class="p">,</span>
<span class="s1">&#39;img_src&#39;</span><span class="p">:</span> <span class="n">img_src</span><span class="p">,</span>
<span class="p">}</span>
<span class="p">)</span>
<span class="c1"># return results</span>
<span class="k">return</span> <span class="n">results</span></div>
</pre></div>
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<h1>Source code for searx.engines.google_videos</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;This is the implementation of the google videos engine.</span>
<span class="sd">.. admonition:: Content-Security-Policy (CSP)</span>
<span class="sd"> This engine needs to allow images from the `data URLs`_ (prefixed with the</span>
<span class="sd"> ``data:`` scheme)::</span>
<span class="sd"> Header set Content-Security-Policy &quot;img-src &#39;self&#39; data: ;&quot;</span>
<span class="sd">.. _data URLs:</span>
<span class="sd"> https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="c1"># pylint: disable=invalid-name</span>
<span class="kn">import</span> <span class="nn">re</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="kn">import</span> <span class="n">urlencode</span>
<span class="kn">from</span> <span class="nn">lxml</span> <span class="kn">import</span> <span class="n">html</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="p">(</span>
<span class="n">eval_xpath</span><span class="p">,</span>
<span class="n">eval_xpath_list</span><span class="p">,</span>
<span class="n">eval_xpath_getindex</span><span class="p">,</span>
<span class="n">extract_text</span><span class="p">,</span>
<span class="p">)</span>
<span class="kn">from</span> <span class="nn">searx.engines.google</span> <span class="kn">import</span> <span class="p">(</span>
<span class="n">get_lang_info</span><span class="p">,</span>
<span class="n">time_range_dict</span><span class="p">,</span>
<span class="n">filter_mapping</span><span class="p">,</span>
<span class="n">g_section_with_header</span><span class="p">,</span>
<span class="n">title_xpath</span><span class="p">,</span>
<span class="n">suggestion_xpath</span><span class="p">,</span>
<span class="n">detect_google_sorry</span><span class="p">,</span>
<span class="p">)</span>
<span class="c1"># pylint: disable=unused-import</span>
<span class="kn">from</span> <span class="nn">searx.engines.google</span> <span class="kn">import</span> <span class="n">supported_languages_url</span><span class="p">,</span> <span class="n">_fetch_supported_languages</span>
<span class="c1"># pylint: enable=unused-import</span>
<span class="c1"># about</span>
<span class="n">about</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;website&quot;</span><span class="p">:</span> <span class="s1">&#39;https://www.google.com&#39;</span><span class="p">,</span>
<span class="s2">&quot;wikidata_id&quot;</span><span class="p">:</span> <span class="s1">&#39;Q219885&#39;</span><span class="p">,</span>
<span class="s2">&quot;official_api_documentation&quot;</span><span class="p">:</span> <span class="s1">&#39;https://developers.google.com/custom-search&#39;</span><span class="p">,</span>
<span class="s2">&quot;use_official_api&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;require_api_key&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;results&quot;</span><span class="p">:</span> <span class="s1">&#39;HTML&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># engine dependent config</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;videos&#39;</span><span class="p">,</span> <span class="s1">&#39;web&#39;</span><span class="p">]</span>
<span class="n">paging</span> <span class="o">=</span> <span class="kc">False</span>
<span class="n">language_support</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">use_locale_domain</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">time_range_support</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">safesearch</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">RE_CACHE</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">def</span> <span class="nf">_re</span><span class="p">(</span><span class="n">regexpr</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;returns compiled regular expression&quot;&quot;&quot;</span>
<span class="n">RE_CACHE</span><span class="p">[</span><span class="n">regexpr</span><span class="p">]</span> <span class="o">=</span> <span class="n">RE_CACHE</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">regexpr</span><span class="p">,</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="n">regexpr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">RE_CACHE</span><span class="p">[</span><span class="n">regexpr</span><span class="p">]</span>
<span class="k">def</span> <span class="nf">scrap_out_thumbs_src</span><span class="p">(</span><span class="n">dom</span><span class="p">):</span>
<span class="n">ret_val</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">thumb_name</span> <span class="o">=</span> <span class="s1">&#39;dimg_&#39;</span>
<span class="k">for</span> <span class="n">script</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//script[contains(., &quot;google.ldi={&quot;)]&#39;</span><span class="p">):</span>
<span class="n">_script</span> <span class="o">=</span> <span class="n">script</span><span class="o">.</span><span class="n">text</span>
<span class="c1"># &quot;dimg_35&quot;:&quot;https://i.ytimg.c....&quot;,</span>
<span class="n">_dimurl</span> <span class="o">=</span> <span class="n">_re</span><span class="p">(</span><span class="s2">&quot;s=&#39;([^&#39;]*)&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="n">_script</span><span class="p">)</span>
<span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">_re</span><span class="p">(</span><span class="s1">&#39;(&#39;</span> <span class="o">+</span> <span class="n">thumb_name</span> <span class="o">+</span> <span class="s1">&#39;[0-9]*)&quot;:&quot;(http[^&quot;]*)&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="n">_script</span><span class="p">):</span>
<span class="n">v</span> <span class="o">=</span> <span class="n">v</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="sa">r</span><span class="s1">&#39;\u003d&#39;</span><span class="p">,</span> <span class="s1">&#39;=&#39;</span><span class="p">)</span>
<span class="n">v</span> <span class="o">=</span> <span class="n">v</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="sa">r</span><span class="s1">&#39;\u0026&#39;</span><span class="p">,</span> <span class="s1">&#39;&amp;&#39;</span><span class="p">)</span>
<span class="n">ret_val</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="o">=</span> <span class="n">v</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;found </span><span class="si">%s</span><span class="s2"> imgdata for: </span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">thumb_name</span><span class="p">,</span> <span class="n">ret_val</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span>
<span class="k">return</span> <span class="n">ret_val</span>
<div class="viewcode-block" id="scrap_out_thumbs"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google_videos.scrap_out_thumbs">[docs]</a><span class="k">def</span> <span class="nf">scrap_out_thumbs</span><span class="p">(</span><span class="n">dom</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Scrap out thumbnail data from &lt;script&gt; tags.&quot;&quot;&quot;</span>
<span class="n">ret_val</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">thumb_name</span> <span class="o">=</span> <span class="s1">&#39;dimg_&#39;</span>
<span class="k">for</span> <span class="n">script</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//script[contains(., &quot;_setImagesSrc&quot;)]&#39;</span><span class="p">):</span>
<span class="n">_script</span> <span class="o">=</span> <span class="n">script</span><span class="o">.</span><span class="n">text</span>
<span class="c1"># var s=&#39;data:image/jpeg;base64, ...&#39;</span>
<span class="n">_imgdata</span> <span class="o">=</span> <span class="n">_re</span><span class="p">(</span><span class="s2">&quot;s=&#39;([^&#39;]*)&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="n">_script</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">_imgdata</span><span class="p">:</span>
<span class="k">continue</span>
<span class="c1"># var ii=[&#39;dimg_17&#39;]</span>
<span class="k">for</span> <span class="n">_vidthumb</span> <span class="ow">in</span> <span class="n">_re</span><span class="p">(</span><span class="sa">r</span><span class="s2">&quot;(</span><span class="si">%s</span><span class="s2">\d+)&quot;</span> <span class="o">%</span> <span class="n">thumb_name</span><span class="p">)</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="n">_script</span><span class="p">):</span>
<span class="c1"># At least the equal sign in the URL needs to be decoded</span>
<span class="n">ret_val</span><span class="p">[</span><span class="n">_vidthumb</span><span class="p">]</span> <span class="o">=</span> <span class="n">_imgdata</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="sa">r</span><span class="s2">&quot;\x3d&quot;</span><span class="p">,</span> <span class="s2">&quot;=&quot;</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;found </span><span class="si">%s</span><span class="s2"> imgdata for: </span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">thumb_name</span><span class="p">,</span> <span class="n">ret_val</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span>
<span class="k">return</span> <span class="n">ret_val</span></div>
<div class="viewcode-block" id="request"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google_videos.request">[docs]</a><span class="k">def</span> <span class="nf">request</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">params</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Google-Video search request&quot;&quot;&quot;</span>
<span class="n">lang_info</span> <span class="o">=</span> <span class="n">get_lang_info</span><span class="p">(</span><span class="n">params</span><span class="p">,</span> <span class="n">supported_languages</span><span class="p">,</span> <span class="n">language_aliases</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;HTTP header Accept-Language --&gt; </span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">][</span><span class="s1">&#39;Accept-Language&#39;</span><span class="p">])</span>
<span class="n">query_url</span> <span class="o">=</span> <span class="p">(</span>
<span class="s1">&#39;https://&#39;</span>
<span class="o">+</span> <span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;subdomain&#39;</span><span class="p">]</span>
<span class="o">+</span> <span class="s1">&#39;/search&#39;</span>
<span class="o">+</span> <span class="s2">&quot;?&quot;</span>
<span class="o">+</span> <span class="n">urlencode</span><span class="p">(</span>
<span class="p">{</span>
<span class="s1">&#39;q&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
<span class="s1">&#39;tbm&#39;</span><span class="p">:</span> <span class="s2">&quot;vid&quot;</span><span class="p">,</span>
<span class="o">**</span><span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;params&#39;</span><span class="p">],</span>
<span class="s1">&#39;ie&#39;</span><span class="p">:</span> <span class="s2">&quot;utf8&quot;</span><span class="p">,</span>
<span class="s1">&#39;oe&#39;</span><span class="p">:</span> <span class="s2">&quot;utf8&quot;</span><span class="p">,</span>
<span class="p">}</span>
<span class="p">)</span>
<span class="p">)</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]</span> <span class="ow">in</span> <span class="n">time_range_dict</span><span class="p">:</span>
<span class="n">query_url</span> <span class="o">+=</span> <span class="s1">&#39;&amp;&#39;</span> <span class="o">+</span> <span class="n">urlencode</span><span class="p">({</span><span class="s1">&#39;tbs&#39;</span><span class="p">:</span> <span class="s1">&#39;qdr:&#39;</span> <span class="o">+</span> <span class="n">time_range_dict</span><span class="p">[</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]]})</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;safesearch&#39;</span><span class="p">]:</span>
<span class="n">query_url</span> <span class="o">+=</span> <span class="s1">&#39;&amp;&#39;</span> <span class="o">+</span> <span class="n">urlencode</span><span class="p">({</span><span class="s1">&#39;safe&#39;</span><span class="p">:</span> <span class="n">filter_mapping</span><span class="p">[</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;safesearch&#39;</span><span class="p">]]})</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">query_url</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">lang_info</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">])</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">][</span><span class="s1">&#39;Accept&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8&#39;</span>
<span class="k">return</span> <span class="n">params</span></div>
<div class="viewcode-block" id="response"><a class="viewcode-back" href="../../../src/searx.engines.google.html#searx.engines.google_videos.response">[docs]</a><span class="k">def</span> <span class="nf">response</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Get response from google&#39;s search request&quot;&quot;&quot;</span>
<span class="n">results</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">detect_google_sorry</span><span class="p">(</span><span class="n">resp</span><span class="p">)</span>
<span class="c1"># convert the text to dom</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="n">vidthumb_imgdata</span> <span class="o">=</span> <span class="n">scrap_out_thumbs</span><span class="p">(</span><span class="n">dom</span><span class="p">)</span>
<span class="n">thumbs_src</span> <span class="o">=</span> <span class="n">scrap_out_thumbs_src</span><span class="p">(</span><span class="n">dom</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">thumbs_src</span><span class="p">))</span>
<span class="c1"># parse results</span>
<span class="k">for</span> <span class="n">result</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//div[contains(@class, &quot;g &quot;)]&#39;</span><span class="p">):</span>
<span class="c1"># ignore google *sections*</span>
<span class="k">if</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">g_section_with_header</span><span class="p">)):</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;ingoring &lt;g-section-with-header&gt;&quot;</span><span class="p">)</span>
<span class="k">continue</span>
<span class="c1"># ingnore articles without an image id / e.g. news articles</span>
<span class="n">img_id</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;.//g-img/img/@id&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">img_id</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s2">&quot;no img_id found in item </span><span class="si">%s</span><span class="s2"> (news article?)&quot;</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">results</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">continue</span>
<span class="n">img_src</span> <span class="o">=</span> <span class="n">vidthumb_imgdata</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">img_id</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">img_src</span><span class="p">:</span>
<span class="n">img_src</span> <span class="o">=</span> <span class="n">thumbs_src</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">img_id</span><span class="p">,</span> <span class="s2">&quot;&quot;</span><span class="p">)</span>
<span class="n">title</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">title_xpath</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;.//div[@class=&quot;dXiKIc&quot;]//a/@href&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">length</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;.//div[contains(@class, &quot;P7xzyf&quot;)]/span/span&#39;</span><span class="p">))</span>
<span class="n">c_node</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;.//div[@class=&quot;Uroaid&quot;]&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">c_node</span><span class="p">)</span>
<span class="n">pub_info</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;.//div[@class=&quot;Zg1NU&quot;]&#39;</span><span class="p">))</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">(</span>
<span class="p">{</span>
<span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="n">url</span><span class="p">,</span>
<span class="s1">&#39;title&#39;</span><span class="p">:</span> <span class="n">title</span><span class="p">,</span>
<span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">content</span><span class="p">,</span>
<span class="s1">&#39;length&#39;</span><span class="p">:</span> <span class="n">length</span><span class="p">,</span>
<span class="s1">&#39;author&#39;</span><span class="p">:</span> <span class="n">pub_info</span><span class="p">,</span>
<span class="s1">&#39;thumbnail&#39;</span><span class="p">:</span> <span class="n">img_src</span><span class="p">,</span>
<span class="s1">&#39;template&#39;</span><span class="p">:</span> <span class="s1">&#39;videos.html&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="p">)</span>
<span class="c1"># parse suggestion</span>
<span class="k">for</span> <span class="n">suggestion</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">suggestion_xpath</span><span class="p">):</span>
<span class="c1"># append suggestion</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s1">&#39;suggestion&#39;</span><span class="p">:</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">suggestion</span><span class="p">)})</span>
<span class="k">return</span> <span class="n">results</span></div>
</pre></div>
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<h1>Source code for searx.engines.xpath</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;The XPath engine is a *generic* engine with which it is possible to configure</span>
<span class="sd">engines in the settings.</span>
<span class="sd">Here is a simple example of a XPath engine configured in the</span>
<span class="sd">:ref:`settings engine` section, further read :ref:`engines-dev`.</span>
<span class="sd">.. code:: yaml</span>
<span class="sd"> - name : bitbucket</span>
<span class="sd"> engine : xpath</span>
<span class="sd"> paging : True</span>
<span class="sd"> search_url : https://bitbucket.org/repo/all/{pageno}?name={query}</span>
<span class="sd"> url_xpath : //article[@class=&quot;repo-summary&quot;]//a[@class=&quot;repo-link&quot;]/@href</span>
<span class="sd"> title_xpath : //article[@class=&quot;repo-summary&quot;]//a[@class=&quot;repo-link&quot;]</span>
<span class="sd"> content_xpath : //article[@class=&quot;repo-summary&quot;]/p</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="kn">import</span> <span class="n">urlencode</span>
<span class="kn">from</span> <span class="nn">lxml</span> <span class="kn">import</span> <span class="n">html</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="n">extract_text</span><span class="p">,</span> <span class="n">extract_url</span><span class="p">,</span> <span class="n">eval_xpath</span><span class="p">,</span> <span class="n">eval_xpath_list</span>
<span class="n">search_url</span> <span class="o">=</span> <span class="kc">None</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd">Search URL of the engine. Example::</span>
<span class="sd"> https://example.org/?search={query}&amp;page={pageno}{time_range}{safe_search}</span>
<span class="sd">Replacements are:</span>
<span class="sd">``{query}``:</span>
<span class="sd"> Search terms from user.</span>
<span class="sd">``{pageno}``:</span>
<span class="sd"> Page number if engine supports pagging :py:obj:`paging`</span>
<span class="sd">``{lang}``:</span>
<span class="sd"> ISO 639-1 language code (en, de, fr ..)</span>
<span class="sd">``{time_range}``:</span>
<span class="sd"> :py:obj:`URL parameter &lt;time_range_url&gt;` if engine :py:obj:`supports time</span>
<span class="sd"> range &lt;time_range_support&gt;`. The value for the parameter is taken from</span>
<span class="sd"> :py:obj:`time_range_map`.</span>
<span class="sd">``{safe_search}``:</span>
<span class="sd"> Safe-search :py:obj:`URL parameter &lt;safe_search_map&gt;` if engine</span>
<span class="sd"> :py:obj:`supports safe-search &lt;safe_search_support&gt;`. The ``{safe_search}``</span>
<span class="sd"> replacement is taken from the :py:obj:`safes_search_map`. Filter results::</span>
<span class="sd"> 0: none, 1: moderate, 2:strict</span>
<span class="sd"> If not supported, the URL paramter is an empty string.</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="n">lang_all</span> <span class="o">=</span> <span class="s1">&#39;en&#39;</span>
<span class="sd">&#39;&#39;&#39;Replacement ``{lang}`` in :py:obj:`search_url` if language ``all`` is</span>
<span class="sd">selected.</span>
<span class="sd">&#39;&#39;&#39;</span>
<span class="n">soft_max_redirects</span> <span class="o">=</span> <span class="mi">0</span>
<span class="sd">&#39;&#39;&#39;Maximum redirects, soft limit. Record an error but don&#39;t stop the engine&#39;&#39;&#39;</span>
<span class="n">results_xpath</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="sd">&#39;&#39;&#39;XPath selector for the list of result items&#39;&#39;&#39;</span>
<span class="n">url_xpath</span> <span class="o">=</span> <span class="kc">None</span>
<span class="sd">&#39;&#39;&#39;XPath selector of result&#39;s ``url``.&#39;&#39;&#39;</span>
<span class="n">content_xpath</span> <span class="o">=</span> <span class="kc">None</span>
<span class="sd">&#39;&#39;&#39;XPath selector of result&#39;s ``content``.&#39;&#39;&#39;</span>
<span class="n">title_xpath</span> <span class="o">=</span> <span class="kc">None</span>
<span class="sd">&#39;&#39;&#39;XPath selector of result&#39;s ``title``.&#39;&#39;&#39;</span>
<span class="n">thumbnail_xpath</span> <span class="o">=</span> <span class="kc">False</span>
<span class="sd">&#39;&#39;&#39;XPath selector of result&#39;s ``img_src``.&#39;&#39;&#39;</span>
<span class="n">suggestion_xpath</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="sd">&#39;&#39;&#39;XPath selector of result&#39;s ``suggestion``.&#39;&#39;&#39;</span>
<span class="n">cached_xpath</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="n">cached_url</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="n">cookies</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">headers</span> <span class="o">=</span> <span class="p">{}</span>
<span class="sd">&#39;&#39;&#39;Some engines might offer different result based on cookies or headers.</span>
<span class="sd">Possible use-case: To set safesearch cookie or header to moderate.&#39;&#39;&#39;</span>
<span class="n">paging</span> <span class="o">=</span> <span class="kc">False</span>
<span class="sd">&#39;&#39;&#39;Engine supports paging [True or False].&#39;&#39;&#39;</span>
<span class="n">page_size</span> <span class="o">=</span> <span class="mi">1</span>
<span class="sd">&#39;&#39;&#39;Number of results on each page. Only needed if the site requires not a page</span>
<span class="sd">number, but an offset.&#39;&#39;&#39;</span>
<span class="n">first_page_num</span> <span class="o">=</span> <span class="mi">1</span>
<span class="sd">&#39;&#39;&#39;Number of the first page (usually 0 or 1).&#39;&#39;&#39;</span>
<span class="n">time_range_support</span> <span class="o">=</span> <span class="kc">False</span>
<span class="sd">&#39;&#39;&#39;Engine supports search time range.&#39;&#39;&#39;</span>
<span class="n">time_range_url</span> <span class="o">=</span> <span class="s1">&#39;&amp;hours=</span><span class="si">{time_range_val}</span><span class="s1">&#39;</span>
<span class="sd">&#39;&#39;&#39;Time range URL parameter in the in :py:obj:`search_url`. If no time range is</span>
<span class="sd">requested by the user, the URL paramter is an empty string. The</span>
<span class="sd">``{time_range_val}`` replacement is taken from the :py:obj:`time_range_map`.</span>
<span class="sd">.. code:: yaml</span>
<span class="sd"> time_range_url : &#39;&amp;days={time_range_val}&#39;</span>
<span class="sd">&#39;&#39;&#39;</span>
<span class="n">time_range_map</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;day&#39;</span><span class="p">:</span> <span class="mi">24</span><span class="p">,</span>
<span class="s1">&#39;week&#39;</span><span class="p">:</span> <span class="mi">24</span> <span class="o">*</span> <span class="mi">7</span><span class="p">,</span>
<span class="s1">&#39;month&#39;</span><span class="p">:</span> <span class="mi">24</span> <span class="o">*</span> <span class="mi">30</span><span class="p">,</span>
<span class="s1">&#39;year&#39;</span><span class="p">:</span> <span class="mi">24</span> <span class="o">*</span> <span class="mi">365</span><span class="p">,</span>
<span class="p">}</span>
<span class="sd">&#39;&#39;&#39;Maps time range value from user to ``{time_range_val}`` in</span>
<span class="sd">:py:obj:`time_range_url`.</span>
<span class="sd">.. code:: yaml</span>
<span class="sd"> time_range_map:</span>
<span class="sd"> day: 1</span>
<span class="sd"> week: 7</span>
<span class="sd"> month: 30</span>
<span class="sd"> year: 365</span>
<span class="sd">&#39;&#39;&#39;</span>
<span class="n">safe_search_support</span> <span class="o">=</span> <span class="kc">False</span>
<span class="sd">&#39;&#39;&#39;Engine supports safe-search.&#39;&#39;&#39;</span>
<span class="n">safe_search_map</span> <span class="o">=</span> <span class="p">{</span><span class="mi">0</span><span class="p">:</span> <span class="s1">&#39;&amp;filter=none&#39;</span><span class="p">,</span> <span class="mi">1</span><span class="p">:</span> <span class="s1">&#39;&amp;filter=moderate&#39;</span><span class="p">,</span> <span class="mi">2</span><span class="p">:</span> <span class="s1">&#39;&amp;filter=strict&#39;</span><span class="p">}</span>
<span class="sd">&#39;&#39;&#39;Maps safe-search value to ``{safe_search}`` in :py:obj:`search_url`.</span>
<span class="sd">.. code:: yaml</span>
<span class="sd"> safesearch: true</span>
<span class="sd"> safes_search_map:</span>
<span class="sd"> 0: &#39;&amp;filter=none&#39;</span>
<span class="sd"> 1: &#39;&amp;filter=moderate&#39;</span>
<span class="sd"> 2: &#39;&amp;filter=strict&#39;</span>
<span class="sd">&#39;&#39;&#39;</span>
<div class="viewcode-block" id="request"><a class="viewcode-back" href="../../../admin/engines/searx.engines.xpath.html#searx.engines.xpath.request">[docs]</a><span class="k">def</span> <span class="nf">request</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">params</span><span class="p">):</span>
<span class="sd">&#39;&#39;&#39;Build request parameters (see :ref:`engine request`).&#39;&#39;&#39;</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">lang_all</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;language&#39;</span><span class="p">]</span> <span class="o">!=</span> <span class="s1">&#39;all&#39;</span><span class="p">:</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;language&#39;</span><span class="p">][:</span><span class="mi">2</span><span class="p">]</span>
<span class="n">time_range</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="k">if</span> <span class="n">params</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;time_range&#39;</span><span class="p">):</span>
<span class="n">time_range_val</span> <span class="o">=</span> <span class="n">time_range_map</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">params</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;time_range&#39;</span><span class="p">))</span>
<span class="n">time_range</span> <span class="o">=</span> <span class="n">time_range_url</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">time_range_val</span><span class="o">=</span><span class="n">time_range_val</span><span class="p">)</span>
<span class="n">safe_search</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;safesearch&#39;</span><span class="p">]:</span>
<span class="n">safe_search</span> <span class="o">=</span> <span class="n">safe_search_map</span><span class="p">[</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;safesearch&#39;</span><span class="p">]]</span>
<span class="n">fargs</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;query&#39;</span><span class="p">:</span> <span class="n">urlencode</span><span class="p">({</span><span class="s1">&#39;q&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">})[</span><span class="mi">2</span><span class="p">:],</span>
<span class="s1">&#39;lang&#39;</span><span class="p">:</span> <span class="n">lang</span><span class="p">,</span>
<span class="s1">&#39;pageno&#39;</span><span class="p">:</span> <span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;pageno&#39;</span><span class="p">]</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> <span class="o">*</span> <span class="n">page_size</span> <span class="o">+</span> <span class="n">first_page_num</span><span class="p">,</span>
<span class="s1">&#39;time_range&#39;</span><span class="p">:</span> <span class="n">time_range</span><span class="p">,</span>
<span class="s1">&#39;safe_search&#39;</span><span class="p">:</span> <span class="n">safe_search</span><span class="p">,</span>
<span class="p">}</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;cookies&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">cookies</span><span class="p">)</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">headers</span><span class="p">)</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">search_url</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="o">**</span><span class="n">fargs</span><span class="p">)</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;soft_max_redirects&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">soft_max_redirects</span>
<span class="k">return</span> <span class="n">params</span></div>
<div class="viewcode-block" id="response"><a class="viewcode-back" href="../../../admin/engines/searx.engines.xpath.html#searx.engines.xpath.response">[docs]</a><span class="k">def</span> <span class="nf">response</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="sd">&#39;&#39;&#39;Scrap *results* from the response (see :ref:`engine results`).&#39;&#39;&#39;</span>
<span class="n">results</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="n">is_onion</span> <span class="o">=</span> <span class="s1">&#39;onions&#39;</span> <span class="ow">in</span> <span class="n">categories</span>
<span class="k">if</span> <span class="n">results_xpath</span><span class="p">:</span>
<span class="k">for</span> <span class="n">result</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">results_xpath</span><span class="p">):</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">extract_url</span><span class="p">(</span><span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">url_xpath</span><span class="p">,</span> <span class="n">min_len</span><span class="o">=</span><span class="mi">1</span><span class="p">),</span> <span class="n">search_url</span><span class="p">)</span>
<span class="n">title</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">title_xpath</span><span class="p">,</span> <span class="n">min_len</span><span class="o">=</span><span class="mi">1</span><span class="p">))</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">content_xpath</span><span class="p">))</span>
<span class="n">tmp_result</span> <span class="o">=</span> <span class="p">{</span><span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="n">url</span><span class="p">,</span> <span class="s1">&#39;title&#39;</span><span class="p">:</span> <span class="n">title</span><span class="p">,</span> <span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">content</span><span class="p">}</span>
<span class="c1"># add thumbnail if available</span>
<span class="k">if</span> <span class="n">thumbnail_xpath</span><span class="p">:</span>
<span class="n">thumbnail_xpath_result</span> <span class="o">=</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">thumbnail_xpath</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">thumbnail_xpath_result</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">tmp_result</span><span class="p">[</span><span class="s1">&#39;img_src&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">extract_url</span><span class="p">(</span><span class="n">thumbnail_xpath_result</span><span class="p">,</span> <span class="n">search_url</span><span class="p">)</span>
<span class="c1"># add alternative cached url if available</span>
<span class="k">if</span> <span class="n">cached_xpath</span><span class="p">:</span>
<span class="n">tmp_result</span><span class="p">[</span><span class="s1">&#39;cached_url&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">cached_url</span> <span class="o">+</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">cached_xpath</span><span class="p">,</span> <span class="n">min_len</span><span class="o">=</span><span class="mi">1</span><span class="p">))</span>
<span class="k">if</span> <span class="n">is_onion</span><span class="p">:</span>
<span class="n">tmp_result</span><span class="p">[</span><span class="s1">&#39;is_onion&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">tmp_result</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="n">cached_xpath</span><span class="p">:</span>
<span class="k">for</span> <span class="n">url</span><span class="p">,</span> <span class="n">title</span><span class="p">,</span> <span class="n">content</span><span class="p">,</span> <span class="n">cached</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span>
<span class="p">(</span><span class="n">extract_url</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">search_url</span><span class="p">)</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">url_xpath</span><span class="p">)),</span>
<span class="nb">map</span><span class="p">(</span><span class="n">extract_text</span><span class="p">,</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">title_xpath</span><span class="p">)),</span>
<span class="nb">map</span><span class="p">(</span><span class="n">extract_text</span><span class="p">,</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">content_xpath</span><span class="p">)),</span>
<span class="nb">map</span><span class="p">(</span><span class="n">extract_text</span><span class="p">,</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">cached_xpath</span><span class="p">)),</span>
<span class="p">):</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">(</span>
<span class="p">{</span>
<span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="n">url</span><span class="p">,</span>
<span class="s1">&#39;title&#39;</span><span class="p">:</span> <span class="n">title</span><span class="p">,</span>
<span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">content</span><span class="p">,</span>
<span class="s1">&#39;cached_url&#39;</span><span class="p">:</span> <span class="n">cached_url</span> <span class="o">+</span> <span class="n">cached</span><span class="p">,</span>
<span class="s1">&#39;is_onion&#39;</span><span class="p">:</span> <span class="n">is_onion</span><span class="p">,</span>
<span class="p">}</span>
<span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">for</span> <span class="n">url</span><span class="p">,</span> <span class="n">title</span><span class="p">,</span> <span class="n">content</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span>
<span class="p">(</span><span class="n">extract_url</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">search_url</span><span class="p">)</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">url_xpath</span><span class="p">)),</span>
<span class="nb">map</span><span class="p">(</span><span class="n">extract_text</span><span class="p">,</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">title_xpath</span><span class="p">)),</span>
<span class="nb">map</span><span class="p">(</span><span class="n">extract_text</span><span class="p">,</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">content_xpath</span><span class="p">)),</span>
<span class="p">):</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="n">url</span><span class="p">,</span> <span class="s1">&#39;title&#39;</span><span class="p">:</span> <span class="n">title</span><span class="p">,</span> <span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">content</span><span class="p">,</span> <span class="s1">&#39;is_onion&#39;</span><span class="p">:</span> <span class="n">is_onion</span><span class="p">})</span>
<span class="k">if</span> <span class="n">suggestion_xpath</span><span class="p">:</span>
<span class="k">for</span> <span class="n">suggestion</span> <span class="ow">in</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">suggestion_xpath</span><span class="p">):</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s1">&#39;suggestion&#39;</span><span class="p">:</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">suggestion</span><span class="p">)})</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;found </span><span class="si">%s</span><span class="s2"> results&quot;</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">results</span><span class="p">))</span>
<span class="k">return</span> <span class="n">results</span></div>
</pre></div>
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<h1>Source code for searx.engines.yahoo</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;Yahoo Search (Web)</span>
<span class="sd">Languages are supported by mapping the language to a domain. If domain is not</span>
<span class="sd">found in :py:obj:`lang2domain` URL ``&lt;lang&gt;.search.yahoo.com`` is used.</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="kn">import</span> <span class="p">(</span>
<span class="n">unquote</span><span class="p">,</span>
<span class="n">urlencode</span><span class="p">,</span>
<span class="p">)</span>
<span class="kn">from</span> <span class="nn">lxml</span> <span class="kn">import</span> <span class="n">html</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="p">(</span>
<span class="n">eval_xpath_getindex</span><span class="p">,</span>
<span class="n">eval_xpath_list</span><span class="p">,</span>
<span class="n">extract_text</span><span class="p">,</span>
<span class="n">match_language</span><span class="p">,</span>
<span class="p">)</span>
<span class="c1"># about</span>
<span class="n">about</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;website&quot;</span><span class="p">:</span> <span class="s1">&#39;https://search.yahoo.com/&#39;</span><span class="p">,</span>
<span class="s2">&quot;wikidata_id&quot;</span><span class="p">:</span> <span class="kc">None</span><span class="p">,</span>
<span class="s2">&quot;official_api_documentation&quot;</span><span class="p">:</span> <span class="s1">&#39;https://developer.yahoo.com/api/&#39;</span><span class="p">,</span>
<span class="s2">&quot;use_official_api&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;require_api_key&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;results&quot;</span><span class="p">:</span> <span class="s1">&#39;HTML&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># engine dependent config</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;general&#39;</span><span class="p">,</span> <span class="s1">&#39;web&#39;</span><span class="p">]</span>
<span class="n">paging</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">time_range_support</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">supported_languages_url</span> <span class="o">=</span> <span class="s1">&#39;https://search.yahoo.com/preferences/languages&#39;</span>
<span class="sd">&quot;&quot;&quot;Supported languages are read from Yahoo preference page.&quot;&quot;&quot;</span>
<span class="n">time_range_dict</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;day&#39;</span><span class="p">:</span> <span class="p">(</span><span class="s1">&#39;1d&#39;</span><span class="p">,</span> <span class="s1">&#39;d&#39;</span><span class="p">),</span>
<span class="s1">&#39;week&#39;</span><span class="p">:</span> <span class="p">(</span><span class="s1">&#39;1w&#39;</span><span class="p">,</span> <span class="s1">&#39;w&#39;</span><span class="p">),</span>
<span class="s1">&#39;month&#39;</span><span class="p">:</span> <span class="p">(</span><span class="s1">&#39;1m&#39;</span><span class="p">,</span> <span class="s1">&#39;m&#39;</span><span class="p">),</span>
<span class="p">}</span>
<span class="n">language_aliases</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;zh-HK&#39;</span><span class="p">:</span> <span class="s1">&#39;zh_chs&#39;</span><span class="p">,</span>
<span class="s1">&#39;zh-CN&#39;</span><span class="p">:</span> <span class="s1">&#39;zh_chs&#39;</span><span class="p">,</span> <span class="c1"># dead since 2015 / routed to hk.search.yahoo.com</span>
<span class="s1">&#39;zh-TW&#39;</span><span class="p">:</span> <span class="s1">&#39;zh_cht&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="n">lang2domain</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;zh_chs&#39;</span><span class="p">:</span> <span class="s1">&#39;hk.search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;zh_cht&#39;</span><span class="p">:</span> <span class="s1">&#39;tw.search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;en&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;bg&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;cs&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;da&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;el&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;et&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;he&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;hr&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;ja&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;ko&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;sk&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="s1">&#39;sl&#39;</span><span class="p">:</span> <span class="s1">&#39;search.yahoo.com&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="sd">&quot;&quot;&quot;Map language to domain&quot;&quot;&quot;</span>
<span class="k">def</span> <span class="nf">_get_language</span><span class="p">(</span><span class="n">params</span><span class="p">):</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">language_aliases</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;language&#39;</span><span class="p">])</span>
<span class="k">if</span> <span class="n">lang</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">match_language</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;language&#39;</span><span class="p">],</span> <span class="n">supported_languages</span><span class="p">,</span> <span class="n">language_aliases</span><span class="p">)</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">lang</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;params[&#39;language&#39;]: </span><span class="si">%s</span><span class="s2"> --&gt; </span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;language&#39;</span><span class="p">],</span> <span class="n">lang</span><span class="p">)</span>
<span class="k">return</span> <span class="n">lang</span>
<div class="viewcode-block" id="request"><a class="viewcode-back" href="../../../src/searx.engines.yahoo.html#searx.engines.yahoo.request">[docs]</a><span class="k">def</span> <span class="nf">request</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">params</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;build request&quot;&quot;&quot;</span>
<span class="n">offset</span> <span class="o">=</span> <span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;pageno&#39;</span><span class="p">]</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> <span class="o">*</span> <span class="mi">7</span> <span class="o">+</span> <span class="mi">1</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">_get_language</span><span class="p">(</span><span class="n">params</span><span class="p">)</span>
<span class="n">age</span><span class="p">,</span> <span class="n">btf</span> <span class="o">=</span> <span class="n">time_range_dict</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">],</span> <span class="p">(</span><span class="s1">&#39;&#39;</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">))</span>
<span class="n">args</span> <span class="o">=</span> <span class="n">urlencode</span><span class="p">(</span>
<span class="p">{</span>
<span class="s1">&#39;p&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
<span class="s1">&#39;ei&#39;</span><span class="p">:</span> <span class="s1">&#39;UTF-8&#39;</span><span class="p">,</span>
<span class="s1">&#39;fl&#39;</span><span class="p">:</span> <span class="mi">1</span><span class="p">,</span>
<span class="s1">&#39;vl&#39;</span><span class="p">:</span> <span class="s1">&#39;lang_&#39;</span> <span class="o">+</span> <span class="n">lang</span><span class="p">,</span>
<span class="s1">&#39;btf&#39;</span><span class="p">:</span> <span class="n">btf</span><span class="p">,</span>
<span class="s1">&#39;fr2&#39;</span><span class="p">:</span> <span class="s1">&#39;time&#39;</span><span class="p">,</span>
<span class="s1">&#39;age&#39;</span><span class="p">:</span> <span class="n">age</span><span class="p">,</span>
<span class="s1">&#39;b&#39;</span><span class="p">:</span> <span class="n">offset</span><span class="p">,</span>
<span class="s1">&#39;xargs&#39;</span><span class="p">:</span> <span class="mi">0</span><span class="p">,</span>
<span class="p">}</span>
<span class="p">)</span>
<span class="n">domain</span> <span class="o">=</span> <span class="n">lang2domain</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">lang</span><span class="p">,</span> <span class="s1">&#39;</span><span class="si">%s</span><span class="s1">.search.yahoo.com&#39;</span> <span class="o">%</span> <span class="n">lang</span><span class="p">)</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;https://</span><span class="si">%s</span><span class="s1">/search?</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">domain</span><span class="p">,</span> <span class="n">args</span><span class="p">)</span>
<span class="k">return</span> <span class="n">params</span></div>
<div class="viewcode-block" id="parse_url"><a class="viewcode-back" href="../../../src/searx.engines.yahoo.html#searx.engines.yahoo.parse_url">[docs]</a><span class="k">def</span> <span class="nf">parse_url</span><span class="p">(</span><span class="n">url_string</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;remove yahoo-specific tracking-url&quot;&quot;&quot;</span>
<span class="n">endings</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;/RS&#39;</span><span class="p">,</span> <span class="s1">&#39;/RK&#39;</span><span class="p">]</span>
<span class="n">endpositions</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">start</span> <span class="o">=</span> <span class="n">url_string</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s1">&#39;http&#39;</span><span class="p">,</span> <span class="n">url_string</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s1">&#39;/RU=&#39;</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">for</span> <span class="n">ending</span> <span class="ow">in</span> <span class="n">endings</span><span class="p">:</span>
<span class="n">endpos</span> <span class="o">=</span> <span class="n">url_string</span><span class="o">.</span><span class="n">rfind</span><span class="p">(</span><span class="n">ending</span><span class="p">)</span>
<span class="k">if</span> <span class="n">endpos</span> <span class="o">&gt;</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span>
<span class="n">endpositions</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">endpos</span><span class="p">)</span>
<span class="k">if</span> <span class="n">start</span> <span class="o">==</span> <span class="mi">0</span> <span class="ow">or</span> <span class="nb">len</span><span class="p">(</span><span class="n">endpositions</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">return</span> <span class="n">url_string</span>
<span class="n">end</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">endpositions</span><span class="p">)</span>
<span class="k">return</span> <span class="n">unquote</span><span class="p">(</span><span class="n">url_string</span><span class="p">[</span><span class="n">start</span><span class="p">:</span><span class="n">end</span><span class="p">])</span></div>
<div class="viewcode-block" id="response"><a class="viewcode-back" href="../../../src/searx.engines.yahoo.html#searx.engines.yahoo.response">[docs]</a><span class="k">def</span> <span class="nf">response</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;parse response&quot;&quot;&quot;</span>
<span class="n">results</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="c1"># parse results</span>
<span class="k">for</span> <span class="n">result</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//div[contains(@class,&quot;algo-sr&quot;)]&#39;</span><span class="p">):</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;.//h3/a/@href&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">url</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">continue</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">parse_url</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="n">title</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;.//h3/a&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">title</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">continue</span>
<span class="n">offset</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">extract_text</span><span class="p">(</span><span class="n">title</span><span class="o">.</span><span class="n">xpath</span><span class="p">(</span><span class="s1">&#39;span&#39;</span><span class="p">)))</span>
<span class="n">title</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">title</span><span class="p">)[</span><span class="n">offset</span><span class="p">:]</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;.//div[contains(@class, &quot;compText&quot;)]&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="s1">&#39;&#39;</span><span class="p">)</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">content</span><span class="p">,</span> <span class="n">allow_none</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
<span class="c1"># append result</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="n">url</span><span class="p">,</span> <span class="s1">&#39;title&#39;</span><span class="p">:</span> <span class="n">title</span><span class="p">,</span> <span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">content</span><span class="p">})</span>
<span class="k">for</span> <span class="n">suggestion</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//div[contains(@class, &quot;AlsoTry&quot;)]//table//a&#39;</span><span class="p">):</span>
<span class="c1"># append suggestion</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s1">&#39;suggestion&#39;</span><span class="p">:</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">suggestion</span><span class="p">)})</span>
<span class="k">return</span> <span class="n">results</span></div>
<span class="c1"># get supported languages from their site</span>
<span class="k">def</span> <span class="nf">_fetch_supported_languages</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="n">supported_languages</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="n">offset</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="s1">&#39;lang_&#39;</span><span class="p">)</span>
<span class="k">for</span> <span class="n">val</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//div[contains(@class, &quot;lang-item&quot;)]/input/@value&#39;</span><span class="p">):</span>
<span class="n">supported_languages</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">val</span><span class="p">[</span><span class="n">offset</span><span class="p">:])</span>
<span class="k">return</span> <span class="n">supported_languages</span>
</pre></div>
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<h1>Source code for searx.infopage</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="c1"># pyright: basic</span>
<span class="sd">&quot;&quot;&quot;Render SearXNG instance documentation.</span>
<span class="sd">Usage in a Flask app route:</span>
<span class="sd">.. code:: python</span>
<span class="sd"> from searx import infopage</span>
<span class="sd"> _INFO_PAGES = infopage.InfoPageSet(infopage.MistletoePage)</span>
<span class="sd"> @app.route(&#39;/info/&lt;pagename&gt;&#39;, methods=[&#39;GET&#39;])</span>
<span class="sd"> def info(pagename):</span>
<span class="sd"> locale = request.preferences.get_value(&#39;locale&#39;)</span>
<span class="sd"> page = _INFO_PAGES.get_page(pagename, locale)</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;InfoPage&#39;</span><span class="p">,</span> <span class="s1">&#39;InfoPageSet&#39;</span><span class="p">]</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">import</span> <span class="nn">os.path</span>
<span class="kn">import</span> <span class="nn">logging</span>
<span class="kn">import</span> <span class="nn">typing</span>
<span class="kn">import</span> <span class="nn">urllib.parse</span>
<span class="kn">import</span> <span class="nn">jinja2</span>
<span class="kn">from</span> <span class="nn">flask.helpers</span> <span class="kn">import</span> <span class="n">url_for</span>
<span class="kn">from</span> <span class="nn">markdown_it</span> <span class="kn">import</span> <span class="n">MarkdownIt</span>
<span class="kn">from</span> <span class="nn">..</span> <span class="kn">import</span> <span class="n">get_setting</span>
<span class="kn">from</span> <span class="nn">..compat</span> <span class="kn">import</span> <span class="n">cached_property</span>
<span class="kn">from</span> <span class="nn">..version</span> <span class="kn">import</span> <span class="n">GIT_URL</span>
<span class="kn">from</span> <span class="nn">..locales</span> <span class="kn">import</span> <span class="n">LOCALE_NAMES</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s1">&#39;searx.infopage&#39;</span><span class="p">)</span>
<span class="n">_INFO_FOLDER</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">abspath</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="vm">__file__</span><span class="p">))</span>
<div class="viewcode-block" id="InfoPage"><a class="viewcode-back" href="../../src/searx.infopage.html#searx.infopage.InfoPage">[docs]</a><span class="k">class</span> <span class="nc">InfoPage</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;A page of the :py:obj:`online documentation &lt;InfoPageSet&gt;`.&quot;&quot;&quot;</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">fname</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">fname</span> <span class="o">=</span> <span class="n">fname</span>
<span class="nd">@cached_property</span>
<span class="k">def</span> <span class="nf">raw_content</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Raw content of the page (without any jinja rendering)&quot;&quot;&quot;</span>
<span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">fname</span><span class="p">,</span> <span class="s1">&#39;r&#39;</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="s1">&#39;utf-8&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">f</span><span class="p">:</span>
<span class="k">return</span> <span class="n">f</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
<span class="nd">@cached_property</span>
<span class="k">def</span> <span class="nf">content</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Content of the page (rendered in a Jinja conntext)&quot;&quot;&quot;</span>
<span class="n">ctx</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_ctx</span><span class="p">()</span>
<span class="n">template</span> <span class="o">=</span> <span class="n">jinja2</span><span class="o">.</span><span class="n">Environment</span><span class="p">()</span><span class="o">.</span><span class="n">from_string</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">raw_content</span><span class="p">)</span>
<span class="k">return</span> <span class="n">template</span><span class="o">.</span><span class="n">render</span><span class="p">(</span><span class="o">**</span><span class="n">ctx</span><span class="p">)</span>
<span class="nd">@cached_property</span>
<span class="k">def</span> <span class="nf">title</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Title of the content (without any markup)&quot;&quot;&quot;</span>
<span class="n">t</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span>
<span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">raw_content</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span><span class="p">):</span>
<span class="k">if</span> <span class="n">l</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">&#39;# &#39;</span><span class="p">):</span>
<span class="n">t</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">strip</span><span class="p">(</span><span class="s1">&#39;# &#39;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">t</span>
<span class="nd">@cached_property</span>
<span class="k">def</span> <span class="nf">html</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Render Markdown (CommonMark_) to HTML by using markdown-it-py_.</span>
<span class="sd"> .. _CommonMark: https://commonmark.org/</span>
<span class="sd"> .. _markdown-it-py: https://github.com/executablebooks/markdown-it-py</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">return</span> <span class="p">(</span>
<span class="n">MarkdownIt</span><span class="p">(</span><span class="s2">&quot;commonmark&quot;</span><span class="p">,</span> <span class="p">{</span><span class="s2">&quot;typographer&quot;</span><span class="p">:</span> <span class="kc">True</span><span class="p">})</span><span class="o">.</span><span class="n">enable</span><span class="p">([</span><span class="s2">&quot;replacements&quot;</span><span class="p">,</span> <span class="s2">&quot;smartquotes&quot;</span><span class="p">])</span><span class="o">.</span><span class="n">render</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">content</span><span class="p">)</span>
<span class="p">)</span>
<div class="viewcode-block" id="InfoPage.get_ctx"><a class="viewcode-back" href="../../src/searx.infopage.html#searx.infopage.InfoPage.get_ctx">[docs]</a> <span class="k">def</span> <span class="nf">get_ctx</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Jinja context to render :py:obj:`InfoPage.content`&quot;&quot;&quot;</span>
<span class="k">def</span> <span class="nf">_md_link</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">url</span><span class="p">):</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">url_for</span><span class="p">(</span><span class="n">url</span><span class="p">,</span> <span class="n">_external</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
<span class="k">return</span> <span class="s2">&quot;[</span><span class="si">%s</span><span class="s2">](</span><span class="si">%s</span><span class="s2">)&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">url</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_md_search</span><span class="p">(</span><span class="n">query</span><span class="p">):</span>
<span class="n">url</span> <span class="o">=</span> <span class="s1">&#39;</span><span class="si">%s</span><span class="s1">?q=</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">url_for</span><span class="p">(</span><span class="s1">&#39;search&#39;</span><span class="p">,</span> <span class="n">_external</span><span class="o">=</span><span class="kc">True</span><span class="p">),</span> <span class="n">urllib</span><span class="o">.</span><span class="n">parse</span><span class="o">.</span><span class="n">quote</span><span class="p">(</span><span class="n">query</span><span class="p">))</span>
<span class="k">return</span> <span class="s1">&#39;[</span><span class="si">%s</span><span class="s1">](</span><span class="si">%s</span><span class="s1">)&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">url</span><span class="p">)</span>
<span class="n">ctx</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">ctx</span><span class="p">[</span><span class="s1">&#39;GIT_URL&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">GIT_URL</span>
<span class="n">ctx</span><span class="p">[</span><span class="s1">&#39;get_setting&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">get_setting</span>
<span class="n">ctx</span><span class="p">[</span><span class="s1">&#39;link&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">_md_link</span>
<span class="n">ctx</span><span class="p">[</span><span class="s1">&#39;search&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">_md_search</span>
<span class="k">return</span> <span class="n">ctx</span></div>
<span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="sa">f</span><span class="s1">&#39;&lt;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span><span class="si">}</span><span class="s1"> fname=</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">fname</span><span class="si">!r}</span><span class="s1">&gt;&#39;</span></div>
<div class="viewcode-block" id="InfoPageSet"><a class="viewcode-back" href="../../src/searx.infopage.html#searx.infopage.InfoPageSet">[docs]</a><span class="k">class</span> <span class="nc">InfoPageSet</span><span class="p">:</span> <span class="c1"># pylint: disable=too-few-public-methods</span>
<span class="sd">&quot;&quot;&quot;Cached rendering of the online documentation a SearXNG instance has.</span>
<span class="sd"> :param page_class: render online documentation by :py:obj:`InfoPage` parser.</span>
<span class="sd"> :type page_class: :py:obj:`InfoPage`</span>
<span class="sd"> :param info_folder: information directory</span>
<span class="sd"> :type info_folder: str</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span>
<span class="bp">self</span><span class="p">,</span> <span class="n">page_class</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">typing</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">InfoPage</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> <span class="n">info_folder</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">page_class</span> <span class="o">=</span> <span class="n">page_class</span> <span class="ow">or</span> <span class="n">InfoPage</span>
<span class="bp">self</span><span class="o">.</span><span class="n">folder</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="n">info_folder</span> <span class="ow">or</span> <span class="n">_INFO_FOLDER</span>
<span class="sd">&quot;&quot;&quot;location of the Markdwon files&quot;&quot;&quot;</span>
<span class="bp">self</span><span class="o">.</span><span class="n">CACHE</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">tuple</span><span class="p">,</span> <span class="n">typing</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">InfoPage</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">locale_default</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s1">&#39;en&#39;</span>
<span class="sd">&quot;&quot;&quot;default language&quot;&quot;&quot;</span>
<span class="bp">self</span><span class="o">.</span><span class="n">locales</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span>
<span class="n">locale</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">,</span> <span class="s1">&#39;-&#39;</span><span class="p">)</span> <span class="k">for</span> <span class="n">locale</span> <span class="ow">in</span> <span class="n">os</span><span class="o">.</span><span class="n">listdir</span><span class="p">(</span><span class="n">_INFO_FOLDER</span><span class="p">)</span> <span class="k">if</span> <span class="n">locale</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">,</span> <span class="s1">&#39;-&#39;</span><span class="p">)</span> <span class="ow">in</span> <span class="n">LOCALE_NAMES</span>
<span class="p">]</span>
<span class="sd">&quot;&quot;&quot;list of supported languages (aka locales)&quot;&quot;&quot;</span>
<span class="bp">self</span><span class="o">.</span><span class="n">toc</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span>
<span class="s1">&#39;search-syntax&#39;</span><span class="p">,</span>
<span class="s1">&#39;about&#39;</span><span class="p">,</span>
<span class="p">]</span>
<span class="sd">&quot;&quot;&quot;list of articles in the online documentation&quot;&quot;&quot;</span>
<div class="viewcode-block" id="InfoPageSet.get_page"><a class="viewcode-back" href="../../src/searx.infopage.html#searx.infopage.InfoPageSet.get_page">[docs]</a> <span class="k">def</span> <span class="nf">get_page</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">pagename</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">locale</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Return ``pagename`` instance of :py:obj:`InfoPage`</span>
<span class="sd"> :param pagename: name of the page, a value from :py:obj:`InfoPageSet.toc`</span>
<span class="sd"> :type pagename: str</span>
<span class="sd"> :param locale: language of the page, e.g. ``en``, ``zh_Hans_CN``</span>
<span class="sd"> (default: :py:obj:`InfoPageSet.i18n_origin`)</span>
<span class="sd"> :type locale: str</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">locale</span> <span class="o">=</span> <span class="n">locale</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">locale_default</span>
<span class="k">if</span> <span class="n">pagename</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">toc</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">if</span> <span class="n">locale</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">locales</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="n">cache_key</span> <span class="o">=</span> <span class="p">(</span><span class="n">pagename</span><span class="p">,</span> <span class="n">locale</span><span class="p">)</span>
<span class="n">page</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">CACHE</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">cache_key</span><span class="p">)</span>
<span class="k">if</span> <span class="n">page</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="n">page</span>
<span class="c1"># not yet instantiated</span>
<span class="n">fname</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">folder</span><span class="p">,</span> <span class="n">locale</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="s1">&#39;_&#39;</span><span class="p">),</span> <span class="n">pagename</span><span class="p">)</span> <span class="o">+</span> <span class="s1">&#39;.md&#39;</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="n">fname</span><span class="p">):</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">&#39;file </span><span class="si">%s</span><span class="s1"> does not exists&#39;</span><span class="p">,</span> <span class="n">fname</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">CACHE</span><span class="p">[</span><span class="n">cache_key</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="n">page</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">page_class</span><span class="p">(</span><span class="n">fname</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">CACHE</span><span class="p">[</span><span class="n">cache_key</span><span class="p">]</span> <span class="o">=</span> <span class="n">page</span>
<span class="k">return</span> <span class="n">page</span></div>
<div class="viewcode-block" id="InfoPageSet.iter_pages"><a class="viewcode-back" href="../../src/searx.infopage.html#searx.infopage.InfoPageSet.iter_pages">[docs]</a> <span class="k">def</span> <span class="nf">iter_pages</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">locale</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> <span class="n">fallback_to_default</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Iterate over all pages of the TOC&quot;&quot;&quot;</span>
<span class="n">locale</span> <span class="o">=</span> <span class="n">locale</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">locale_default</span>
<span class="k">for</span> <span class="n">page_name</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">toc</span><span class="p">:</span>
<span class="n">page_locale</span> <span class="o">=</span> <span class="n">locale</span>
<span class="n">page</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_page</span><span class="p">(</span><span class="n">page_name</span><span class="p">,</span> <span class="n">locale</span><span class="p">)</span>
<span class="k">if</span> <span class="n">fallback_to_default</span> <span class="ow">and</span> <span class="n">page</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">page_locale</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">locale_default</span>
<span class="n">page</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_page</span><span class="p">(</span><span class="n">page_name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">locale_default</span><span class="p">)</span>
<span class="k">yield</span> <span class="n">page_name</span><span class="p">,</span> <span class="n">page_locale</span><span class="p">,</span> <span class="n">page</span></div></div>
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<h1>Source code for searx.locales</h1><div class="highlight"><pre>
<span></span><span class="c1"># -*- coding: utf-8 -*-</span>
<span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;Initialize :py:obj:`LOCALE_NAMES`, :py:obj:`RTL_LOCALES`.</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Set</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">import</span> <span class="nn">pathlib</span>
<span class="kn">from</span> <span class="nn">babel</span> <span class="kn">import</span> <span class="n">Locale</span>
<span class="kn">from</span> <span class="nn">babel.support</span> <span class="kn">import</span> <span class="n">Translations</span>
<span class="kn">import</span> <span class="nn">flask_babel</span>
<span class="kn">import</span> <span class="nn">flask</span>
<span class="kn">from</span> <span class="nn">flask.ctx</span> <span class="kn">import</span> <span class="n">has_request_context</span>
<span class="kn">from</span> <span class="nn">searx</span> <span class="kn">import</span> <span class="n">logger</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logger</span><span class="o">.</span><span class="n">getChild</span><span class="p">(</span><span class="s1">&#39;locales&#39;</span><span class="p">)</span>
<span class="c1"># safe before monkey patching flask_babel.get_translations</span>
<span class="n">_flask_babel_get_translations</span> <span class="o">=</span> <span class="n">flask_babel</span><span class="o">.</span><span class="n">get_translations</span>
<span class="n">LOCALE_NAMES</span> <span class="o">=</span> <span class="p">{}</span>
<span class="sd">&quot;&quot;&quot;Mapping of locales and their description. Locales e.g. &#39;fr&#39; or &#39;pt-BR&#39; (see</span>
<span class="sd">:py:obj:`locales_initialize`).&quot;&quot;&quot;</span>
<span class="n">RTL_LOCALES</span><span class="p">:</span> <span class="n">Set</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span>
<span class="sd">&quot;&quot;&quot;List of *Right-To-Left* locales e.g. &#39;he&#39; or &#39;fa-IR&#39; (see</span>
<span class="sd">:py:obj:`locales_initialize`).&quot;&quot;&quot;</span>
<span class="n">ADDITIONAL_TRANSLATIONS</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;oc&quot;</span><span class="p">:</span> <span class="s2">&quot;Occitan&quot;</span><span class="p">,</span>
<span class="s2">&quot;szl&quot;</span><span class="p">:</span> <span class="s2">&quot;Ślōnski (Silesian)&quot;</span><span class="p">,</span>
<span class="p">}</span>
<span class="sd">&quot;&quot;&quot;Additional languages SearXNG has translations for but not supported by</span>
<span class="sd">python-babel (see :py:obj:`locales_initialize`).&quot;&quot;&quot;</span>
<span class="n">LOCALE_BEST_MATCH</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;oc&quot;</span><span class="p">:</span> <span class="s1">&#39;fr-FR&#39;</span><span class="p">,</span>
<span class="s2">&quot;szl&quot;</span><span class="p">:</span> <span class="s2">&quot;pl&quot;</span><span class="p">,</span>
<span class="s2">&quot;nl-BE&quot;</span><span class="p">:</span> <span class="s2">&quot;nl&quot;</span><span class="p">,</span>
<span class="s2">&quot;zh-HK&quot;</span><span class="p">:</span> <span class="s2">&quot;zh-Hant-TW&quot;</span><span class="p">,</span>
<span class="p">}</span>
<span class="sd">&quot;&quot;&quot;Map a locale we do not have a translations for to a locale we have a</span>
<span class="sd">translation for. By example: use Taiwan version of the translation for Hong</span>
<span class="sd">Kong.&quot;&quot;&quot;</span>
<span class="k">def</span> <span class="nf">localeselector</span><span class="p">():</span>
<span class="n">locale</span> <span class="o">=</span> <span class="s1">&#39;en&#39;</span>
<span class="k">if</span> <span class="n">has_request_context</span><span class="p">():</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">flask</span><span class="o">.</span><span class="n">request</span><span class="o">.</span><span class="n">preferences</span><span class="o">.</span><span class="n">get_value</span><span class="p">(</span><span class="s1">&#39;locale&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">value</span><span class="p">:</span>
<span class="n">locale</span> <span class="o">=</span> <span class="n">value</span>
<span class="c1"># first, set the language that is not supported by babel</span>
<span class="k">if</span> <span class="n">locale</span> <span class="ow">in</span> <span class="n">ADDITIONAL_TRANSLATIONS</span><span class="p">:</span>
<span class="n">flask</span><span class="o">.</span><span class="n">request</span><span class="o">.</span><span class="n">form</span><span class="p">[</span><span class="s1">&#39;use-translation&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">locale</span>
<span class="c1"># second, map locale to a value python-babel supports</span>
<span class="n">locale</span> <span class="o">=</span> <span class="n">LOCALE_BEST_MATCH</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">locale</span><span class="p">,</span> <span class="n">locale</span><span class="p">)</span>
<span class="k">if</span> <span class="n">locale</span> <span class="o">==</span> <span class="s1">&#39;&#39;</span><span class="p">:</span>
<span class="c1"># if there is an error loading the preferences</span>
<span class="c1"># the locale is going to be &#39;&#39;</span>
<span class="n">locale</span> <span class="o">=</span> <span class="s1">&#39;en&#39;</span>
<span class="c1"># babel uses underscore instead of hyphen.</span>
<span class="n">locale</span> <span class="o">=</span> <span class="n">locale</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="s1">&#39;_&#39;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">locale</span>
<div class="viewcode-block" id="get_translations"><a class="viewcode-back" href="../../src/searx.locales.html#searx.locales.get_translations">[docs]</a><span class="k">def</span> <span class="nf">get_translations</span><span class="p">():</span>
<span class="sd">&quot;&quot;&quot;Monkey patch of :py:obj:`flask_babel.get_translations`&quot;&quot;&quot;</span>
<span class="k">if</span> <span class="n">has_request_context</span><span class="p">()</span> <span class="ow">and</span> <span class="n">flask</span><span class="o">.</span><span class="n">request</span><span class="o">.</span><span class="n">form</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;use-translation&#39;</span><span class="p">)</span> <span class="o">==</span> <span class="s1">&#39;oc&#39;</span><span class="p">:</span>
<span class="n">babel_ext</span> <span class="o">=</span> <span class="n">flask_babel</span><span class="o">.</span><span class="n">current_app</span><span class="o">.</span><span class="n">extensions</span><span class="p">[</span><span class="s1">&#39;babel&#39;</span><span class="p">]</span>
<span class="k">return</span> <span class="n">Translations</span><span class="o">.</span><span class="n">load</span><span class="p">(</span><span class="nb">next</span><span class="p">(</span><span class="n">babel_ext</span><span class="o">.</span><span class="n">translation_directories</span><span class="p">),</span> <span class="s1">&#39;oc&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">has_request_context</span><span class="p">()</span> <span class="ow">and</span> <span class="n">flask</span><span class="o">.</span><span class="n">request</span><span class="o">.</span><span class="n">form</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;use-translation&#39;</span><span class="p">)</span> <span class="o">==</span> <span class="s1">&#39;szl&#39;</span><span class="p">:</span>
<span class="n">babel_ext</span> <span class="o">=</span> <span class="n">flask_babel</span><span class="o">.</span><span class="n">current_app</span><span class="o">.</span><span class="n">extensions</span><span class="p">[</span><span class="s1">&#39;babel&#39;</span><span class="p">]</span>
<span class="k">return</span> <span class="n">Translations</span><span class="o">.</span><span class="n">load</span><span class="p">(</span><span class="nb">next</span><span class="p">(</span><span class="n">babel_ext</span><span class="o">.</span><span class="n">translation_directories</span><span class="p">),</span> <span class="s1">&#39;szl&#39;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">_flask_babel_get_translations</span><span class="p">()</span></div>
<div class="viewcode-block" id="get_locale_descr"><a class="viewcode-back" href="../../src/searx.locales.html#searx.locales.get_locale_descr">[docs]</a><span class="k">def</span> <span class="nf">get_locale_descr</span><span class="p">(</span><span class="n">locale</span><span class="p">,</span> <span class="n">locale_name</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Get locale name e.g. &#39;Français - fr&#39; or &#39;Português (Brasil) - pt-BR&#39;</span>
<span class="sd"> :param locale: instance of :py:class:`Locale`</span>
<span class="sd"> :param locale_name: name e.g. &#39;fr&#39; or &#39;pt_BR&#39; (delimiter is *underscore*)</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">native_language</span><span class="p">,</span> <span class="n">native_territory</span> <span class="o">=</span> <span class="n">_get_locale_descr</span><span class="p">(</span><span class="n">locale</span><span class="p">,</span> <span class="n">locale_name</span><span class="p">)</span>
<span class="n">english_language</span><span class="p">,</span> <span class="n">english_territory</span> <span class="o">=</span> <span class="n">_get_locale_descr</span><span class="p">(</span><span class="n">locale</span><span class="p">,</span> <span class="s1">&#39;en&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">native_territory</span> <span class="o">==</span> <span class="n">english_territory</span><span class="p">:</span>
<span class="n">english_territory</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">native_territory</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">english_territory</span><span class="p">:</span>
<span class="k">if</span> <span class="n">native_language</span> <span class="o">==</span> <span class="n">english_language</span><span class="p">:</span>
<span class="k">return</span> <span class="n">native_language</span>
<span class="k">return</span> <span class="n">native_language</span> <span class="o">+</span> <span class="s1">&#39; (&#39;</span> <span class="o">+</span> <span class="n">english_language</span> <span class="o">+</span> <span class="s1">&#39;)&#39;</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">native_language</span> <span class="o">+</span> <span class="s1">&#39;, &#39;</span> <span class="o">+</span> <span class="n">native_territory</span> <span class="o">+</span> <span class="s1">&#39; (&#39;</span> <span class="o">+</span> <span class="n">english_language</span>
<span class="k">if</span> <span class="n">english_territory</span><span class="p">:</span>
<span class="k">return</span> <span class="n">result</span> <span class="o">+</span> <span class="s1">&#39;, &#39;</span> <span class="o">+</span> <span class="n">english_territory</span> <span class="o">+</span> <span class="s1">&#39;)&#39;</span>
<span class="k">return</span> <span class="n">result</span> <span class="o">+</span> <span class="s1">&#39;)&#39;</span></div>
<span class="k">def</span> <span class="nf">_get_locale_descr</span><span class="p">(</span><span class="n">locale</span><span class="p">,</span> <span class="n">language_code</span><span class="p">):</span>
<span class="n">language_name</span> <span class="o">=</span> <span class="n">locale</span><span class="o">.</span><span class="n">get_language_name</span><span class="p">(</span><span class="n">language_code</span><span class="p">)</span><span class="o">.</span><span class="n">capitalize</span><span class="p">()</span>
<span class="k">if</span> <span class="n">language_name</span> <span class="ow">and</span> <span class="p">(</span><span class="s1">&#39;a&#39;</span> <span class="o">&lt;=</span> <span class="n">language_name</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">&lt;=</span> <span class="s1">&#39;z&#39;</span><span class="p">):</span>
<span class="n">language_name</span> <span class="o">=</span> <span class="n">language_name</span><span class="o">.</span><span class="n">capitalize</span><span class="p">()</span>
<span class="n">terrirtory_name</span> <span class="o">=</span> <span class="n">locale</span><span class="o">.</span><span class="n">get_territory_name</span><span class="p">(</span><span class="n">language_code</span><span class="p">)</span>
<span class="k">return</span> <span class="n">language_name</span><span class="p">,</span> <span class="n">terrirtory_name</span>
<div class="viewcode-block" id="locales_initialize"><a class="viewcode-back" href="../../src/searx.locales.html#searx.locales.locales_initialize">[docs]</a><span class="k">def</span> <span class="nf">locales_initialize</span><span class="p">(</span><span class="n">directory</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Initialize locales environment of the SearXNG session.</span>
<span class="sd"> - monkey patch :py:obj:`flask_babel.get_translations` by :py:obj:`get_translations`</span>
<span class="sd"> - init global names :py:obj:`LOCALE_NAMES`, :py:obj:`RTL_LOCALES`</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">directory</span> <span class="o">=</span> <span class="n">directory</span> <span class="ow">or</span> <span class="n">pathlib</span><span class="o">.</span><span class="n">Path</span><span class="p">(</span><span class="vm">__file__</span><span class="p">)</span><span class="o">.</span><span class="n">parent</span> <span class="o">/</span> <span class="s1">&#39;translations&#39;</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;locales_initialize: </span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">directory</span><span class="p">)</span>
<span class="n">flask_babel</span><span class="o">.</span><span class="n">get_translations</span> <span class="o">=</span> <span class="n">get_translations</span>
<span class="k">for</span> <span class="n">tag</span><span class="p">,</span> <span class="n">descr</span> <span class="ow">in</span> <span class="n">ADDITIONAL_TRANSLATIONS</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="n">LOCALE_NAMES</span><span class="p">[</span><span class="n">tag</span><span class="p">]</span> <span class="o">=</span> <span class="n">descr</span>
<span class="k">for</span> <span class="n">tag</span> <span class="ow">in</span> <span class="n">LOCALE_BEST_MATCH</span><span class="p">:</span>
<span class="n">descr</span> <span class="o">=</span> <span class="n">LOCALE_NAMES</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">tag</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">descr</span><span class="p">:</span>
<span class="n">locale</span> <span class="o">=</span> <span class="n">Locale</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">tag</span><span class="p">,</span> <span class="n">sep</span><span class="o">=</span><span class="s1">&#39;-&#39;</span><span class="p">)</span>
<span class="n">LOCALE_NAMES</span><span class="p">[</span><span class="n">tag</span><span class="p">]</span> <span class="o">=</span> <span class="n">get_locale_descr</span><span class="p">(</span><span class="n">locale</span><span class="p">,</span> <span class="n">tag</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="s1">&#39;_&#39;</span><span class="p">))</span>
<span class="k">for</span> <span class="n">dirname</span> <span class="ow">in</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">listdir</span><span class="p">(</span><span class="n">directory</span><span class="p">)):</span>
<span class="c1"># Based on https://flask-babel.tkte.ch/_modules/flask_babel.html#Babel.list_translations</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">isdir</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">directory</span><span class="p">,</span> <span class="n">dirname</span><span class="p">,</span> <span class="s1">&#39;LC_MESSAGES&#39;</span><span class="p">)):</span>
<span class="k">continue</span>
<span class="n">tag</span> <span class="o">=</span> <span class="n">dirname</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">,</span> <span class="s1">&#39;-&#39;</span><span class="p">)</span>
<span class="n">descr</span> <span class="o">=</span> <span class="n">LOCALE_NAMES</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">tag</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">descr</span><span class="p">:</span>
<span class="n">locale</span> <span class="o">=</span> <span class="n">Locale</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">dirname</span><span class="p">)</span>
<span class="n">LOCALE_NAMES</span><span class="p">[</span><span class="n">tag</span><span class="p">]</span> <span class="o">=</span> <span class="n">get_locale_descr</span><span class="p">(</span><span class="n">locale</span><span class="p">,</span> <span class="n">dirname</span><span class="p">)</span>
<span class="k">if</span> <span class="n">locale</span><span class="o">.</span><span class="n">text_direction</span> <span class="o">==</span> <span class="s1">&#39;rtl&#39;</span><span class="p">:</span>
<span class="n">RTL_LOCALES</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">tag</span><span class="p">)</span></div>
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<h1>Source code for searx.redislib</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;A collection of convenient functions and redis/lua scripts.</span>
<span class="sd">This code was partial inspired by the `Bullet-Proofing Lua Scripts in RedisPy`_</span>
<span class="sd">article.</span>
<span class="sd">.. _Bullet-Proofing Lua Scripts in RedisPy:</span>
<span class="sd"> https://redis.com/blog/bullet-proofing-lua-scripts-in-redispy/</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">import</span> <span class="nn">hmac</span>
<span class="kn">from</span> <span class="nn">searx</span> <span class="kn">import</span> <span class="n">get_setting</span>
<span class="n">LUA_SCRIPT_STORAGE</span> <span class="o">=</span> <span class="p">{}</span>
<span class="sd">&quot;&quot;&quot;A global dictionary to cache client&#39;s ``Script`` objects, used by</span>
<span class="sd">:py:obj:`lua_script_storage`&quot;&quot;&quot;</span>
<div class="viewcode-block" id="lua_script_storage"><a class="viewcode-back" href="../../src/searx.redislib.html#searx.redislib.lua_script_storage">[docs]</a><span class="k">def</span> <span class="nf">lua_script_storage</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="n">script</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns a redis :py:obj:`Script</span>
<span class="sd"> &lt;redis.commands.core.CoreCommands.register_script&gt;` instance.</span>
<span class="sd"> Due to performance reason the ``Script`` object is instantiated only once</span>
<span class="sd"> for a client (``client.register_script(..)``) and is cached in</span>
<span class="sd"> :py:obj:`LUA_SCRIPT_STORAGE`.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="c1"># redis connection can be closed, lets use the id() of the redis connector</span>
<span class="c1"># as key in the script-storage:</span>
<span class="n">client_id</span> <span class="o">=</span> <span class="nb">id</span><span class="p">(</span><span class="n">client</span><span class="p">)</span>
<span class="k">if</span> <span class="n">LUA_SCRIPT_STORAGE</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">client_id</span><span class="p">)</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">LUA_SCRIPT_STORAGE</span><span class="p">[</span><span class="n">client_id</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">if</span> <span class="n">LUA_SCRIPT_STORAGE</span><span class="p">[</span><span class="n">client_id</span><span class="p">]</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">script</span><span class="p">)</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">LUA_SCRIPT_STORAGE</span><span class="p">[</span><span class="n">client_id</span><span class="p">][</span><span class="n">script</span><span class="p">]</span> <span class="o">=</span> <span class="n">client</span><span class="o">.</span><span class="n">register_script</span><span class="p">(</span><span class="n">script</span><span class="p">)</span>
<span class="k">return</span> <span class="n">LUA_SCRIPT_STORAGE</span><span class="p">[</span><span class="n">client_id</span><span class="p">][</span><span class="n">script</span><span class="p">]</span></div>
<span class="n">PURGE_BY_PREFIX</span> <span class="o">=</span> <span class="s2">&quot;&quot;&quot;</span>
<span class="s2">local prefix = tostring(ARGV[1])</span>
<span class="s2">for i, name in ipairs(redis.call(&#39;KEYS&#39;, prefix .. &#39;*&#39;)) do</span>
<span class="s2"> redis.call(&#39;EXPIRE&#39;, name, 0)</span>
<span class="s2">end</span>
<span class="s2">&quot;&quot;&quot;</span>
<div class="viewcode-block" id="purge_by_prefix"><a class="viewcode-back" href="../../src/searx.redislib.html#searx.redislib.purge_by_prefix">[docs]</a><span class="k">def</span> <span class="nf">purge_by_prefix</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="n">prefix</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s2">&quot;SearXNG_&quot;</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Purge all keys with ``prefix`` from database.</span>
<span class="sd"> Queries all keys in the database by the given prefix and set expire time to</span>
<span class="sd"> zero. The default prefix will drop all keys which has been set by SearXNG</span>
<span class="sd"> (drops SearXNG schema entirely from database).</span>
<span class="sd"> The implementation is the lua script from string :py:obj:`PURGE_BY_PREFIX`.</span>
<span class="sd"> The lua script uses EXPIRE_ instead of DEL_: if there are a lot keys to</span>
<span class="sd"> delete and/or their values are big, `DEL` could take more time and blocks</span>
<span class="sd"> the command loop while `EXPIRE` turns back immediate.</span>
<span class="sd"> :param prefix: prefix of the key to delete (default: ``SearXNG_``)</span>
<span class="sd"> :type name: str</span>
<span class="sd"> .. _EXPIRE: https://redis.io/commands/expire/</span>
<span class="sd"> .. _DEL: https://redis.io/commands/del/</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">script</span> <span class="o">=</span> <span class="n">lua_script_storage</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="n">PURGE_BY_PREFIX</span><span class="p">)</span>
<span class="n">script</span><span class="p">(</span><span class="n">args</span><span class="o">=</span><span class="p">[</span><span class="n">prefix</span><span class="p">])</span></div>
<div class="viewcode-block" id="secret_hash"><a class="viewcode-back" href="../../src/searx.redislib.html#searx.redislib.secret_hash">[docs]</a><span class="k">def</span> <span class="nf">secret_hash</span><span class="p">(</span><span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Creates a hash of the ``name``.</span>
<span class="sd"> Combines argument ``name`` with the ``secret_key`` from :ref:`settings</span>
<span class="sd"> server`. This function can be used to get a more anonymised name of a Redis</span>
<span class="sd"> KEY.</span>
<span class="sd"> :param name: the name to create a secret hash for</span>
<span class="sd"> :type name: str</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">m</span> <span class="o">=</span> <span class="n">hmac</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="nb">bytes</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="s1">&#39;utf-8&#39;</span><span class="p">),</span> <span class="n">digestmod</span><span class="o">=</span><span class="s1">&#39;sha256&#39;</span><span class="p">)</span>
<span class="n">m</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="nb">bytes</span><span class="p">(</span><span class="n">get_setting</span><span class="p">(</span><span class="s1">&#39;server.secret_key&#39;</span><span class="p">),</span> <span class="n">encoding</span><span class="o">=</span><span class="s1">&#39;utf-8&#39;</span><span class="p">))</span>
<span class="k">return</span> <span class="n">m</span><span class="o">.</span><span class="n">hexdigest</span><span class="p">()</span></div>
<span class="n">INCR_COUNTER</span> <span class="o">=</span> <span class="s2">&quot;&quot;&quot;</span>
<span class="s2">local limit = tonumber(ARGV[1])</span>
<span class="s2">local expire = tonumber(ARGV[2])</span>
<span class="s2">local c_name = KEYS[1]</span>
<span class="s2">local c = redis.call(&#39;GET&#39;, c_name)</span>
<span class="s2">if not c then</span>
<span class="s2"> c = redis.call(&#39;INCR&#39;, c_name)</span>
<span class="s2"> if expire &gt; 0 then</span>
<span class="s2"> redis.call(&#39;EXPIRE&#39;, c_name, expire)</span>
<span class="s2"> end</span>
<span class="s2">else</span>
<span class="s2"> c = tonumber(c)</span>
<span class="s2"> if limit == 0 or c &lt; limit then</span>
<span class="s2"> c = redis.call(&#39;INCR&#39;, c_name)</span>
<span class="s2"> end</span>
<span class="s2">end</span>
<span class="s2">return c</span>
<span class="s2">&quot;&quot;&quot;</span>
<div class="viewcode-block" id="incr_counter"><a class="viewcode-back" href="../../src/searx.redislib.html#searx.redislib.incr_counter">[docs]</a><span class="k">def</span> <span class="nf">incr_counter</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">limit</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">expire</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">0</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Increment a counter and return the new value.</span>
<span class="sd"> If counter with redis key ``SearXNG_counter_&lt;name&gt;`` does not exists it is</span>
<span class="sd"> created with initial value 1 returned. The replacement ``&lt;name&gt;`` is a</span>
<span class="sd"> *secret hash* of the value from argument ``name`` (see</span>
<span class="sd"> :py:func:`secret_hash`).</span>
<span class="sd"> The implementation of the redis counter is the lua script from string</span>
<span class="sd"> :py:obj:`INCR_COUNTER`.</span>
<span class="sd"> :param name: name of the counter</span>
<span class="sd"> :type name: str</span>
<span class="sd"> :param expire: live-time of the counter in seconds (default ``None`` means</span>
<span class="sd"> infinite).</span>
<span class="sd"> :type expire: int / see EXPIRE_</span>
<span class="sd"> :param limit: limit where the counter stops to increment (default ``None``)</span>
<span class="sd"> :type limit: int / limit is 2^64 see INCR_</span>
<span class="sd"> :return: value of the incremented counter</span>
<span class="sd"> :type return: int</span>
<span class="sd"> .. _EXPIRE: https://redis.io/commands/expire/</span>
<span class="sd"> .. _INCR: https://redis.io/commands/incr/</span>
<span class="sd"> A simple demo of a counter with expire time and limit::</span>
<span class="sd"> &gt;&gt;&gt; for i in range(6):</span>
<span class="sd"> ... i, incr_counter(client, &quot;foo&quot;, 3, 5) # max 3, duration 5 sec</span>
<span class="sd"> ... time.sleep(1) # from the third call on max has been reached</span>
<span class="sd"> ...</span>
<span class="sd"> (0, 1)</span>
<span class="sd"> (1, 2)</span>
<span class="sd"> (2, 3)</span>
<span class="sd"> (3, 3)</span>
<span class="sd"> (4, 3)</span>
<span class="sd"> (5, 1)</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">script</span> <span class="o">=</span> <span class="n">lua_script_storage</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="n">INCR_COUNTER</span><span class="p">)</span>
<span class="n">name</span> <span class="o">=</span> <span class="s2">&quot;SearXNG_counter_&quot;</span> <span class="o">+</span> <span class="n">secret_hash</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
<span class="n">c</span> <span class="o">=</span> <span class="n">script</span><span class="p">(</span><span class="n">args</span><span class="o">=</span><span class="p">[</span><span class="n">limit</span><span class="p">,</span> <span class="n">expire</span><span class="p">],</span> <span class="n">keys</span><span class="o">=</span><span class="p">[</span><span class="n">name</span><span class="p">])</span>
<span class="k">return</span> <span class="n">c</span></div>
<div class="viewcode-block" id="drop_counter"><a class="viewcode-back" href="../../src/searx.redislib.html#searx.redislib.drop_counter">[docs]</a><span class="k">def</span> <span class="nf">drop_counter</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Drop counter with redis key ``SearXNG_counter_&lt;name&gt;``</span>
<span class="sd"> The replacement ``&lt;name&gt;`` is a *secret hash* of the value from argument</span>
<span class="sd"> ``name`` (see :py:func:`incr_counter` and :py:func:`incr_sliding_window`).</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">name</span> <span class="o">=</span> <span class="s2">&quot;SearXNG_counter_&quot;</span> <span class="o">+</span> <span class="n">secret_hash</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
<span class="n">client</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">name</span><span class="p">)</span></div>
<span class="n">INCR_SLIDING_WINDOW</span> <span class="o">=</span> <span class="s2">&quot;&quot;&quot;</span>
<span class="s2">local expire = tonumber(ARGV[1])</span>
<span class="s2">local name = KEYS[1]</span>
<span class="s2">local current_time = redis.call(&#39;TIME&#39;)</span>
<span class="s2">redis.call(&#39;ZREMRANGEBYSCORE&#39;, name, 0, current_time[1] - expire)</span>
<span class="s2">redis.call(&#39;ZADD&#39;, name, current_time[1], current_time[1] .. current_time[2])</span>
<span class="s2">local result = redis.call(&#39;ZCOUNT&#39;, name, 0, current_time[1] + 1)</span>
<span class="s2">redis.call(&#39;EXPIRE&#39;, name, expire)</span>
<span class="s2">return result</span>
<span class="s2">&quot;&quot;&quot;</span>
<div class="viewcode-block" id="incr_sliding_window"><a class="viewcode-back" href="../../src/searx.redislib.html#searx.redislib.incr_sliding_window">[docs]</a><span class="k">def</span> <span class="nf">incr_sliding_window</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">duration</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Increment a sliding-window counter and return the new value.</span>
<span class="sd"> If counter with redis key ``SearXNG_counter_&lt;name&gt;`` does not exists it is</span>
<span class="sd"> created with initial value 1 returned. The replacement ``&lt;name&gt;`` is a</span>
<span class="sd"> *secret hash* of the value from argument ``name`` (see</span>
<span class="sd"> :py:func:`secret_hash`).</span>
<span class="sd"> :param name: name of the counter</span>
<span class="sd"> :type name: str</span>
<span class="sd"> :param duration: live-time of the sliding window in seconds</span>
<span class="sd"> :typeduration: int</span>
<span class="sd"> :return: value of the incremented counter</span>
<span class="sd"> :type return: int</span>
<span class="sd"> The implementation of the redis counter is the lua script from string</span>
<span class="sd"> :py:obj:`INCR_SLIDING_WINDOW`. The lua script uses `sorted sets in Redis`_</span>
<span class="sd"> to implement a sliding window for the redis key ``SearXNG_counter_&lt;name&gt;``</span>
<span class="sd"> (ZADD_). The current TIME_ is used to score the items in the sorted set and</span>
<span class="sd"> the time window is moved by removing items with a score lower current time</span>
<span class="sd"> minus *duration* time (ZREMRANGEBYSCORE_).</span>
<span class="sd"> The EXPIRE_ time (the duration of the sliding window) is refreshed on each</span>
<span class="sd"> call (incrementation) and if there is no call in this duration, the sorted</span>
<span class="sd"> set expires from the redis DB.</span>
<span class="sd"> The return value is the amount of items in the sorted set (ZCOUNT_), what</span>
<span class="sd"> means the number of calls in the sliding window.</span>
<span class="sd"> .. _Sorted sets in Redis:</span>
<span class="sd"> https://redis.com/ebook/part-1-getting-started/chapter-1-getting-to-know-redis/1-2-what-redis-data-structures-look-like/1-2-5-sorted-sets-in-redis/</span>
<span class="sd"> .. _TIME: https://redis.io/commands/time/</span>
<span class="sd"> .. _ZADD: https://redis.io/commands/zadd/</span>
<span class="sd"> .. _EXPIRE: https://redis.io/commands/expire/</span>
<span class="sd"> .. _ZREMRANGEBYSCORE: https://redis.io/commands/zremrangebyscore/</span>
<span class="sd"> .. _ZCOUNT: https://redis.io/commands/zcount/</span>
<span class="sd"> A simple demo of the sliding window::</span>
<span class="sd"> &gt;&gt;&gt; for i in range(5):</span>
<span class="sd"> ... incr_sliding_window(client, &quot;foo&quot;, 3) # duration 3 sec</span>
<span class="sd"> ... time.sleep(1) # from the third call (second) on the window is moved</span>
<span class="sd"> ...</span>
<span class="sd"> 1</span>
<span class="sd"> 2</span>
<span class="sd"> 3</span>
<span class="sd"> 3</span>
<span class="sd"> 3</span>
<span class="sd"> &gt;&gt;&gt; time.sleep(3) # wait until expire</span>
<span class="sd"> &gt;&gt;&gt; incr_sliding_window(client, &quot;foo&quot;, 3)</span>
<span class="sd"> 1</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">script</span> <span class="o">=</span> <span class="n">lua_script_storage</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="n">INCR_SLIDING_WINDOW</span><span class="p">)</span>
<span class="n">name</span> <span class="o">=</span> <span class="s2">&quot;SearXNG_counter_&quot;</span> <span class="o">+</span> <span class="n">secret_hash</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
<span class="n">c</span> <span class="o">=</span> <span class="n">script</span><span class="p">(</span><span class="n">args</span><span class="o">=</span><span class="p">[</span><span class="n">duration</span><span class="p">],</span> <span class="n">keys</span><span class="o">=</span><span class="p">[</span><span class="n">name</span><span class="p">])</span>
<span class="k">return</span> <span class="n">c</span></div>
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<h1>Source code for searx.search</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="c1"># pylint: disable=missing-module-docstring, too-few-public-methods</span>
<span class="kn">import</span> <span class="nn">typing</span>
<span class="kn">import</span> <span class="nn">threading</span>
<span class="kn">from</span> <span class="nn">timeit</span> <span class="kn">import</span> <span class="n">default_timer</span>
<span class="kn">from</span> <span class="nn">uuid</span> <span class="kn">import</span> <span class="n">uuid4</span>
<span class="kn">from</span> <span class="nn">searx</span> <span class="kn">import</span> <span class="n">settings</span>
<span class="kn">from</span> <span class="nn">searx.answerers</span> <span class="kn">import</span> <span class="n">ask</span>
<span class="kn">from</span> <span class="nn">searx.external_bang</span> <span class="kn">import</span> <span class="n">get_bang_url</span>
<span class="kn">from</span> <span class="nn">searx.results</span> <span class="kn">import</span> <span class="n">ResultContainer</span>
<span class="kn">from</span> <span class="nn">searx</span> <span class="kn">import</span> <span class="n">logger</span>
<span class="kn">from</span> <span class="nn">searx.plugins</span> <span class="kn">import</span> <span class="n">plugins</span>
<span class="kn">from</span> <span class="nn">searx.search.models</span> <span class="kn">import</span> <span class="n">EngineRef</span><span class="p">,</span> <span class="n">SearchQuery</span>
<span class="kn">from</span> <span class="nn">searx.engines</span> <span class="kn">import</span> <span class="n">load_engines</span>
<span class="kn">from</span> <span class="nn">searx.network</span> <span class="kn">import</span> <span class="n">initialize</span> <span class="k">as</span> <span class="n">initialize_network</span><span class="p">,</span> <span class="n">check_network_configuration</span>
<span class="kn">from</span> <span class="nn">searx.metrics</span> <span class="kn">import</span> <span class="n">initialize</span> <span class="k">as</span> <span class="n">initialize_metrics</span><span class="p">,</span> <span class="n">counter_inc</span><span class="p">,</span> <span class="n">histogram_observe_time</span>
<span class="kn">from</span> <span class="nn">searx.search.processors</span> <span class="kn">import</span> <span class="n">PROCESSORS</span><span class="p">,</span> <span class="n">initialize</span> <span class="k">as</span> <span class="n">initialize_processors</span>
<span class="kn">from</span> <span class="nn">searx.search.checker</span> <span class="kn">import</span> <span class="n">initialize</span> <span class="k">as</span> <span class="n">initialize_checker</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logger</span><span class="o">.</span><span class="n">getChild</span><span class="p">(</span><span class="s1">&#39;search&#39;</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">initialize</span><span class="p">(</span><span class="n">settings_engines</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">enable_checker</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">check_network</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">enable_metrics</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="n">settings_engines</span> <span class="o">=</span> <span class="n">settings_engines</span> <span class="ow">or</span> <span class="n">settings</span><span class="p">[</span><span class="s1">&#39;engines&#39;</span><span class="p">]</span>
<span class="n">load_engines</span><span class="p">(</span><span class="n">settings_engines</span><span class="p">)</span>
<span class="n">initialize_network</span><span class="p">(</span><span class="n">settings_engines</span><span class="p">,</span> <span class="n">settings</span><span class="p">[</span><span class="s1">&#39;outgoing&#39;</span><span class="p">])</span>
<span class="k">if</span> <span class="n">check_network</span><span class="p">:</span>
<span class="n">check_network_configuration</span><span class="p">()</span>
<span class="n">initialize_metrics</span><span class="p">([</span><span class="n">engine</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">]</span> <span class="k">for</span> <span class="n">engine</span> <span class="ow">in</span> <span class="n">settings_engines</span><span class="p">],</span> <span class="n">enable_metrics</span><span class="p">)</span>
<span class="n">initialize_processors</span><span class="p">(</span><span class="n">settings_engines</span><span class="p">)</span>
<span class="k">if</span> <span class="n">enable_checker</span><span class="p">:</span>
<span class="n">initialize_checker</span><span class="p">()</span>
<div class="viewcode-block" id="Search"><a class="viewcode-back" href="../../src/searx.search.html#searx.search.Search">[docs]</a><span class="k">class</span> <span class="nc">Search</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Search information container&quot;&quot;&quot;</span>
<span class="vm">__slots__</span> <span class="o">=</span> <span class="s2">&quot;search_query&quot;</span><span class="p">,</span> <span class="s2">&quot;result_container&quot;</span><span class="p">,</span> <span class="s2">&quot;start_time&quot;</span><span class="p">,</span> <span class="s2">&quot;actual_timeout&quot;</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">search_query</span><span class="p">:</span> <span class="n">SearchQuery</span><span class="p">):</span>
<span class="c1"># init vars</span>
<span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">search_query</span> <span class="o">=</span> <span class="n">search_query</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result_container</span> <span class="o">=</span> <span class="n">ResultContainer</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">start_time</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">actual_timeout</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">def</span> <span class="nf">search_external_bang</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Check if there is a external bang.</span>
<span class="sd"> If yes, update self.result_container and return True</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">search_query</span><span class="o">.</span><span class="n">external_bang</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result_container</span><span class="o">.</span><span class="n">redirect_url</span> <span class="o">=</span> <span class="n">get_bang_url</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">search_query</span><span class="p">)</span>
<span class="c1"># This means there was a valid bang and the</span>
<span class="c1"># rest of the search does not need to be continued</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">result_container</span><span class="o">.</span><span class="n">redirect_url</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="k">def</span> <span class="nf">search_answerers</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Check if an answer return a result.</span>
<span class="sd"> If yes, update self.result_container and return True</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">answerers_results</span> <span class="o">=</span> <span class="n">ask</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">search_query</span><span class="p">)</span>
<span class="k">if</span> <span class="n">answerers_results</span><span class="p">:</span>
<span class="k">for</span> <span class="n">results</span> <span class="ow">in</span> <span class="n">answerers_results</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result_container</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="s1">&#39;answer&#39;</span><span class="p">,</span> <span class="n">results</span><span class="p">)</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="c1"># do search-request</span>
<span class="k">def</span> <span class="nf">_get_requests</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1"># init vars</span>
<span class="n">requests</span> <span class="o">=</span> <span class="p">[]</span>
<span class="c1"># max of all selected engine timeout</span>
<span class="n">default_timeout</span> <span class="o">=</span> <span class="mi">0</span>
<span class="c1"># start search-reqest for all selected engines</span>
<span class="k">for</span> <span class="n">engineref</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">search_query</span><span class="o">.</span><span class="n">engineref_list</span><span class="p">:</span>
<span class="n">processor</span> <span class="o">=</span> <span class="n">PROCESSORS</span><span class="p">[</span><span class="n">engineref</span><span class="o">.</span><span class="n">name</span><span class="p">]</span>
<span class="c1"># stop the request now if the engine is suspend</span>
<span class="k">if</span> <span class="n">processor</span><span class="o">.</span><span class="n">extend_container_if_suspended</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">result_container</span><span class="p">):</span>
<span class="k">continue</span>
<span class="c1"># set default request parameters</span>
<span class="n">request_params</span> <span class="o">=</span> <span class="n">processor</span><span class="o">.</span><span class="n">get_params</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">search_query</span><span class="p">,</span> <span class="n">engineref</span><span class="o">.</span><span class="n">category</span><span class="p">)</span>
<span class="k">if</span> <span class="n">request_params</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">continue</span>
<span class="n">counter_inc</span><span class="p">(</span><span class="s1">&#39;engine&#39;</span><span class="p">,</span> <span class="n">engineref</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="s1">&#39;search&#39;</span><span class="p">,</span> <span class="s1">&#39;count&#39;</span><span class="p">,</span> <span class="s1">&#39;sent&#39;</span><span class="p">)</span>
<span class="c1"># append request to list</span>
<span class="n">requests</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">engineref</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">search_query</span><span class="o">.</span><span class="n">query</span><span class="p">,</span> <span class="n">request_params</span><span class="p">))</span>
<span class="c1"># update default_timeout</span>
<span class="n">default_timeout</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">default_timeout</span><span class="p">,</span> <span class="n">processor</span><span class="o">.</span><span class="n">engine</span><span class="o">.</span><span class="n">timeout</span><span class="p">)</span>
<span class="c1"># adjust timeout</span>
<span class="n">max_request_timeout</span> <span class="o">=</span> <span class="n">settings</span><span class="p">[</span><span class="s1">&#39;outgoing&#39;</span><span class="p">][</span><span class="s1">&#39;max_request_timeout&#39;</span><span class="p">]</span>
<span class="n">actual_timeout</span> <span class="o">=</span> <span class="n">default_timeout</span>
<span class="n">query_timeout</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">search_query</span><span class="o">.</span><span class="n">timeout_limit</span>
<span class="k">if</span> <span class="n">max_request_timeout</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">query_timeout</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="c1"># No max, no user query: default_timeout</span>
<span class="k">pass</span>
<span class="k">elif</span> <span class="n">max_request_timeout</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">query_timeout</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="c1"># No max, but user query: From user query except if above default</span>
<span class="n">actual_timeout</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">default_timeout</span><span class="p">,</span> <span class="n">query_timeout</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">max_request_timeout</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">query_timeout</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="c1"># Max, no user query: Default except if above max</span>
<span class="n">actual_timeout</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">default_timeout</span><span class="p">,</span> <span class="n">max_request_timeout</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">max_request_timeout</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">query_timeout</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="c1"># Max &amp; user query: From user query except if above max</span>
<span class="n">actual_timeout</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">query_timeout</span><span class="p">,</span> <span class="n">max_request_timeout</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span>
<span class="s2">&quot;actual_timeout=</span><span class="si">{0}</span><span class="s2"> (default_timeout=</span><span class="si">{1}</span><span class="s2">, ?timeout_limit=</span><span class="si">{2}</span><span class="s2">, max_request_timeout=</span><span class="si">{3}</span><span class="s2">)&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span>
<span class="n">actual_timeout</span><span class="p">,</span> <span class="n">default_timeout</span><span class="p">,</span> <span class="n">query_timeout</span><span class="p">,</span> <span class="n">max_request_timeout</span>
<span class="p">)</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">requests</span><span class="p">,</span> <span class="n">actual_timeout</span>
<span class="k">def</span> <span class="nf">search_multiple_requests</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">requests</span><span class="p">):</span>
<span class="c1"># pylint: disable=protected-access</span>
<span class="n">search_id</span> <span class="o">=</span> <span class="nb">str</span><span class="p">(</span><span class="n">uuid4</span><span class="p">())</span>
<span class="k">for</span> <span class="n">engine_name</span><span class="p">,</span> <span class="n">query</span><span class="p">,</span> <span class="n">request_params</span> <span class="ow">in</span> <span class="n">requests</span><span class="p">:</span>
<span class="n">th</span> <span class="o">=</span> <span class="n">threading</span><span class="o">.</span><span class="n">Thread</span><span class="p">(</span> <span class="c1"># pylint: disable=invalid-name</span>
<span class="n">target</span><span class="o">=</span><span class="n">PROCESSORS</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]</span><span class="o">.</span><span class="n">search</span><span class="p">,</span>
<span class="n">args</span><span class="o">=</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">request_params</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">result_container</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">start_time</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">actual_timeout</span><span class="p">),</span>
<span class="n">name</span><span class="o">=</span><span class="n">search_id</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">th</span><span class="o">.</span><span class="n">_timeout</span> <span class="o">=</span> <span class="kc">False</span>
<span class="n">th</span><span class="o">.</span><span class="n">_engine_name</span> <span class="o">=</span> <span class="n">engine_name</span>
<span class="n">th</span><span class="o">.</span><span class="n">start</span><span class="p">()</span>
<span class="k">for</span> <span class="n">th</span> <span class="ow">in</span> <span class="n">threading</span><span class="o">.</span><span class="n">enumerate</span><span class="p">():</span> <span class="c1"># pylint: disable=invalid-name</span>
<span class="k">if</span> <span class="n">th</span><span class="o">.</span><span class="n">name</span> <span class="o">==</span> <span class="n">search_id</span><span class="p">:</span>
<span class="n">remaining_time</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="mf">0.0</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">actual_timeout</span> <span class="o">-</span> <span class="p">(</span><span class="n">default_timer</span><span class="p">()</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">start_time</span><span class="p">))</span>
<span class="n">th</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">remaining_time</span><span class="p">)</span>
<span class="k">if</span> <span class="n">th</span><span class="o">.</span><span class="n">is_alive</span><span class="p">():</span>
<span class="n">th</span><span class="o">.</span><span class="n">_timeout</span> <span class="o">=</span> <span class="kc">True</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result_container</span><span class="o">.</span><span class="n">add_unresponsive_engine</span><span class="p">(</span><span class="n">th</span><span class="o">.</span><span class="n">_engine_name</span><span class="p">,</span> <span class="s1">&#39;timeout&#39;</span><span class="p">)</span>
<span class="n">PROCESSORS</span><span class="p">[</span><span class="n">th</span><span class="o">.</span><span class="n">_engine_name</span><span class="p">]</span><span class="o">.</span><span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">&#39;engine timeout&#39;</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">search_standard</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Update self.result_container, self.actual_timeout</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">requests</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">actual_timeout</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_requests</span><span class="p">()</span>
<span class="c1"># send all search-request</span>
<span class="k">if</span> <span class="n">requests</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">search_multiple_requests</span><span class="p">(</span><span class="n">requests</span><span class="p">)</span>
<span class="c1"># return results, suggestions, answers and infoboxes</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="c1"># do search-request</span>
<div class="viewcode-block" id="Search.search"><a class="viewcode-back" href="../../src/searx.search.html#searx.search.Search.search">[docs]</a> <span class="k">def</span> <span class="nf">search</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">ResultContainer</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">start_time</span> <span class="o">=</span> <span class="n">default_timer</span><span class="p">()</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">search_external_bang</span><span class="p">():</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">search_answerers</span><span class="p">():</span>
<span class="bp">self</span><span class="o">.</span><span class="n">search_standard</span><span class="p">()</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">result_container</span></div></div>
<div class="viewcode-block" id="SearchWithPlugins"><a class="viewcode-back" href="../../src/searx.search.html#searx.search.SearchWithPlugins">[docs]</a><span class="k">class</span> <span class="nc">SearchWithPlugins</span><span class="p">(</span><span class="n">Search</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Inherit from the Search class, add calls to the plugins.&quot;&quot;&quot;</span>
<span class="vm">__slots__</span> <span class="o">=</span> <span class="s1">&#39;ordered_plugin_list&#39;</span><span class="p">,</span> <span class="s1">&#39;request&#39;</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">search_query</span><span class="p">:</span> <span class="n">SearchQuery</span><span class="p">,</span> <span class="n">ordered_plugin_list</span><span class="p">,</span> <span class="n">request</span><span class="p">:</span> <span class="s2">&quot;flask.Request&quot;</span><span class="p">):</span>
<span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">search_query</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">ordered_plugin_list</span> <span class="o">=</span> <span class="n">ordered_plugin_list</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result_container</span><span class="o">.</span><span class="n">on_result</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_on_result</span>
<span class="c1"># pylint: disable=line-too-long</span>
<span class="c1"># get the &quot;real&quot; request to use it outside the Flask context.</span>
<span class="c1"># see</span>
<span class="c1"># * https://github.com/pallets/flask/blob/d01d26e5210e3ee4cbbdef12f05c886e08e92852/src/flask/globals.py#L55</span>
<span class="c1"># * https://github.com/pallets/werkzeug/blob/3c5d3c9bd0d9ce64590f0af8997a38f3823b368d/src/werkzeug/local.py#L548-L559</span>
<span class="c1"># * https://werkzeug.palletsprojects.com/en/2.0.x/local/#werkzeug.local.LocalProxy._get_current_object</span>
<span class="c1"># pylint: enable=line-too-long</span>
<span class="bp">self</span><span class="o">.</span><span class="n">request</span> <span class="o">=</span> <span class="n">request</span><span class="o">.</span><span class="n">_get_current_object</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">_on_result</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">result</span><span class="p">):</span>
<span class="k">return</span> <span class="n">plugins</span><span class="o">.</span><span class="n">call</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">ordered_plugin_list</span><span class="p">,</span> <span class="s1">&#39;on_result&#39;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">request</span><span class="p">,</span> <span class="bp">self</span><span class="p">,</span> <span class="n">result</span><span class="p">)</span>
<div class="viewcode-block" id="SearchWithPlugins.search"><a class="viewcode-back" href="../../src/searx.search.html#searx.search.SearchWithPlugins.search">[docs]</a> <span class="k">def</span> <span class="nf">search</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">ResultContainer</span><span class="p">:</span>
<span class="k">if</span> <span class="n">plugins</span><span class="o">.</span><span class="n">call</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">ordered_plugin_list</span><span class="p">,</span> <span class="s1">&#39;pre_search&#39;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">request</span><span class="p">,</span> <span class="bp">self</span><span class="p">):</span>
<span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">search</span><span class="p">()</span>
<span class="n">plugins</span><span class="o">.</span><span class="n">call</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">ordered_plugin_list</span><span class="p">,</span> <span class="s1">&#39;post_search&#39;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">request</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result_container</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">result_container</span></div></div>
</pre></div>
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<h1>Source code for searx.search.models</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="kn">import</span> <span class="nn">typing</span>
<div class="viewcode-block" id="EngineRef"><a class="viewcode-back" href="../../../src/searx.search.html#searx.search.EngineRef">[docs]</a><span class="k">class</span> <span class="nc">EngineRef</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Reference by names to an engine and category&quot;&quot;&quot;</span>
<span class="vm">__slots__</span> <span class="o">=</span> <span class="s1">&#39;name&#39;</span><span class="p">,</span> <span class="s1">&#39;category&#39;</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">category</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
<span class="bp">self</span><span class="o">.</span><span class="n">category</span> <span class="o">=</span> <span class="n">category</span>
<span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s2">&quot;EngineRef(</span><span class="si">{!r}</span><span class="s2">, </span><span class="si">{!r}</span><span class="s2">)&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">category</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__eq__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">name</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">category</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">category</span>
<span class="k">def</span> <span class="fm">__hash__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">hash</span><span class="p">((</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">category</span><span class="p">))</span></div>
<div class="viewcode-block" id="SearchQuery"><a class="viewcode-back" href="../../../src/searx.search.html#searx.search.SearchQuery">[docs]</a><span class="k">class</span> <span class="nc">SearchQuery</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;container for all the search parameters (query, language, etc...)&quot;&quot;&quot;</span>
<span class="vm">__slots__</span> <span class="o">=</span> <span class="p">(</span>
<span class="s1">&#39;query&#39;</span><span class="p">,</span>
<span class="s1">&#39;engineref_list&#39;</span><span class="p">,</span>
<span class="s1">&#39;lang&#39;</span><span class="p">,</span>
<span class="s1">&#39;safesearch&#39;</span><span class="p">,</span>
<span class="s1">&#39;pageno&#39;</span><span class="p">,</span>
<span class="s1">&#39;time_range&#39;</span><span class="p">,</span>
<span class="s1">&#39;timeout_limit&#39;</span><span class="p">,</span>
<span class="s1">&#39;external_bang&#39;</span><span class="p">,</span>
<span class="s1">&#39;engine_data&#39;</span><span class="p">,</span>
<span class="p">)</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span>
<span class="bp">self</span><span class="p">,</span>
<span class="n">query</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span>
<span class="n">engineref_list</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="n">EngineRef</span><span class="p">],</span>
<span class="n">lang</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s1">&#39;all&#39;</span><span class="p">,</span>
<span class="n">safesearch</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span>
<span class="n">pageno</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">1</span><span class="p">,</span>
<span class="n">time_range</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
<span class="n">timeout_limit</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
<span class="n">external_bang</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
<span class="n">engine_data</span><span class="p">:</span> <span class="n">typing</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">typing</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">str</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
<span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query</span> <span class="o">=</span> <span class="n">query</span>
<span class="bp">self</span><span class="o">.</span><span class="n">engineref_list</span> <span class="o">=</span> <span class="n">engineref_list</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lang</span> <span class="o">=</span> <span class="n">lang</span>
<span class="bp">self</span><span class="o">.</span><span class="n">safesearch</span> <span class="o">=</span> <span class="n">safesearch</span>
<span class="bp">self</span><span class="o">.</span><span class="n">pageno</span> <span class="o">=</span> <span class="n">pageno</span>
<span class="bp">self</span><span class="o">.</span><span class="n">time_range</span> <span class="o">=</span> <span class="n">time_range</span>
<span class="bp">self</span><span class="o">.</span><span class="n">timeout_limit</span> <span class="o">=</span> <span class="n">timeout_limit</span>
<span class="bp">self</span><span class="o">.</span><span class="n">external_bang</span> <span class="o">=</span> <span class="n">external_bang</span>
<span class="bp">self</span><span class="o">.</span><span class="n">engine_data</span> <span class="o">=</span> <span class="n">engine_data</span> <span class="ow">or</span> <span class="p">{}</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">categories</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="nb">map</span><span class="p">(</span><span class="k">lambda</span> <span class="n">engineref</span><span class="p">:</span> <span class="n">engineref</span><span class="o">.</span><span class="n">category</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">engineref_list</span><span class="p">)))</span>
<span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s2">&quot;SearchQuery(</span><span class="si">{!r}</span><span class="s2">, </span><span class="si">{!r}</span><span class="s2">, </span><span class="si">{!r}</span><span class="s2">, </span><span class="si">{!r}</span><span class="s2">, </span><span class="si">{!r}</span><span class="s2">, </span><span class="si">{!r}</span><span class="s2">, </span><span class="si">{!r}</span><span class="s2">, </span><span class="si">{!r}</span><span class="s2">)&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">engineref_list</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lang</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">safesearch</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">pageno</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">time_range</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">timeout_limit</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">external_bang</span><span class="p">,</span>
<span class="p">)</span>
<span class="k">def</span> <span class="fm">__eq__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">query</span>
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">engineref_list</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">engineref_list</span>
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">lang</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">lang</span>
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">safesearch</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">safesearch</span>
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">pageno</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">pageno</span>
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">time_range</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">time_range</span>
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">timeout_limit</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">timeout_limit</span>
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">external_bang</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">external_bang</span>
<span class="p">)</span>
<span class="k">def</span> <span class="fm">__hash__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">hash</span><span class="p">(</span>
<span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">,</span>
<span class="nb">tuple</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engineref_list</span><span class="p">),</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lang</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">safesearch</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">pageno</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">time_range</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">timeout_limit</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">external_bang</span><span class="p">,</span>
<span class="p">)</span>
<span class="p">)</span></div>
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<h1>Source code for searx.utils</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="c1"># pyright: basic</span>
<span class="sd">&quot;&quot;&quot;Utility functions for the engines</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">import</span> <span class="nn">re</span>
<span class="kn">import</span> <span class="nn">importlib</span>
<span class="kn">import</span> <span class="nn">importlib.util</span>
<span class="kn">import</span> <span class="nn">types</span>
<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Optional</span><span class="p">,</span> <span class="n">Union</span><span class="p">,</span> <span class="n">Any</span><span class="p">,</span> <span class="n">Set</span><span class="p">,</span> <span class="n">List</span><span class="p">,</span> <span class="n">Dict</span><span class="p">,</span> <span class="n">MutableMapping</span><span class="p">,</span> <span class="n">Tuple</span><span class="p">,</span> <span class="n">Callable</span>
<span class="kn">from</span> <span class="nn">numbers</span> <span class="kn">import</span> <span class="n">Number</span>
<span class="kn">from</span> <span class="nn">os.path</span> <span class="kn">import</span> <span class="n">splitext</span><span class="p">,</span> <span class="n">join</span>
<span class="kn">from</span> <span class="nn">random</span> <span class="kn">import</span> <span class="n">choice</span>
<span class="kn">from</span> <span class="nn">html.parser</span> <span class="kn">import</span> <span class="n">HTMLParser</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="kn">import</span> <span class="n">urljoin</span><span class="p">,</span> <span class="n">urlparse</span>
<span class="kn">from</span> <span class="nn">lxml</span> <span class="kn">import</span> <span class="n">html</span>
<span class="kn">from</span> <span class="nn">lxml.etree</span> <span class="kn">import</span> <span class="n">ElementBase</span><span class="p">,</span> <span class="n">XPath</span><span class="p">,</span> <span class="n">XPathError</span><span class="p">,</span> <span class="n">XPathSyntaxError</span><span class="p">,</span> <span class="n">_ElementStringResult</span><span class="p">,</span> <span class="n">_ElementUnicodeResult</span>
<span class="kn">from</span> <span class="nn">babel.core</span> <span class="kn">import</span> <span class="n">get_global</span>
<span class="kn">from</span> <span class="nn">searx</span> <span class="kn">import</span> <span class="n">settings</span>
<span class="kn">from</span> <span class="nn">searx.data</span> <span class="kn">import</span> <span class="n">USER_AGENTS</span>
<span class="kn">from</span> <span class="nn">searx.version</span> <span class="kn">import</span> <span class="n">VERSION_TAG</span>
<span class="kn">from</span> <span class="nn">searx.languages</span> <span class="kn">import</span> <span class="n">language_codes</span>
<span class="kn">from</span> <span class="nn">searx.exceptions</span> <span class="kn">import</span> <span class="n">SearxXPathSyntaxException</span><span class="p">,</span> <span class="n">SearxEngineXPathException</span>
<span class="kn">from</span> <span class="nn">searx</span> <span class="kn">import</span> <span class="n">logger</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logger</span><span class="o">.</span><span class="n">getChild</span><span class="p">(</span><span class="s1">&#39;utils&#39;</span><span class="p">)</span>
<span class="n">XPathSpecType</span> <span class="o">=</span> <span class="n">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">XPath</span><span class="p">]</span>
<span class="n">_BLOCKED_TAGS</span> <span class="o">=</span> <span class="p">(</span><span class="s1">&#39;script&#39;</span><span class="p">,</span> <span class="s1">&#39;style&#39;</span><span class="p">)</span>
<span class="n">_ECMA_UNESCAPE4_RE</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="sa">r</span><span class="s1">&#39;</span><span class="si">%u</span><span class="s1">([0-9a-fA-F]</span><span class="si">{4}</span><span class="s1">)&#39;</span><span class="p">,</span> <span class="n">re</span><span class="o">.</span><span class="n">UNICODE</span><span class="p">)</span>
<span class="n">_ECMA_UNESCAPE2_RE</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="sa">r</span><span class="s1">&#39;%([0-9a-fA-F]</span><span class="si">{2}</span><span class="s1">)&#39;</span><span class="p">,</span> <span class="n">re</span><span class="o">.</span><span class="n">UNICODE</span><span class="p">)</span>
<span class="n">_STORAGE_UNIT_VALUE</span><span class="p">:</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;TB&#39;</span><span class="p">:</span> <span class="mi">1024</span> <span class="o">*</span> <span class="mi">1024</span> <span class="o">*</span> <span class="mi">1024</span> <span class="o">*</span> <span class="mi">1024</span><span class="p">,</span>
<span class="s1">&#39;GB&#39;</span><span class="p">:</span> <span class="mi">1024</span> <span class="o">*</span> <span class="mi">1024</span> <span class="o">*</span> <span class="mi">1024</span><span class="p">,</span>
<span class="s1">&#39;MB&#39;</span><span class="p">:</span> <span class="mi">1024</span> <span class="o">*</span> <span class="mi">1024</span><span class="p">,</span>
<span class="s1">&#39;TiB&#39;</span><span class="p">:</span> <span class="mi">1000</span> <span class="o">*</span> <span class="mi">1000</span> <span class="o">*</span> <span class="mi">1000</span> <span class="o">*</span> <span class="mi">1000</span><span class="p">,</span>
<span class="s1">&#39;MiB&#39;</span><span class="p">:</span> <span class="mi">1000</span> <span class="o">*</span> <span class="mi">1000</span><span class="p">,</span>
<span class="s1">&#39;KiB&#39;</span><span class="p">:</span> <span class="mi">1000</span><span class="p">,</span>
<span class="p">}</span>
<span class="n">_XPATH_CACHE</span><span class="p">:</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">XPath</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">_LANG_TO_LC_CACHE</span><span class="p">:</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">str</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">class</span> <span class="nc">_NotSetClass</span><span class="p">:</span> <span class="c1"># pylint: disable=too-few-public-methods</span>
<span class="sd">&quot;&quot;&quot;Internal class for this module, do not create instance of this class.</span>
<span class="sd"> Replace the None value, allow explicitly pass None as a function argument&quot;&quot;&quot;</span>
<span class="n">_NOTSET</span> <span class="o">=</span> <span class="n">_NotSetClass</span><span class="p">()</span>
<div class="viewcode-block" id="searx_useragent"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.searx_useragent">[docs]</a><span class="k">def</span> <span class="nf">searx_useragent</span><span class="p">()</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Return the searx User Agent&quot;&quot;&quot;</span>
<span class="k">return</span> <span class="s1">&#39;searx/</span><span class="si">{searx_version}</span><span class="s1"> </span><span class="si">{suffix}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span>
<span class="n">searx_version</span><span class="o">=</span><span class="n">VERSION_TAG</span><span class="p">,</span> <span class="n">suffix</span><span class="o">=</span><span class="n">settings</span><span class="p">[</span><span class="s1">&#39;outgoing&#39;</span><span class="p">][</span><span class="s1">&#39;useragent_suffix&#39;</span><span class="p">]</span>
<span class="p">)</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span></div>
<div class="viewcode-block" id="gen_useragent"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.gen_useragent">[docs]</a><span class="k">def</span> <span class="nf">gen_useragent</span><span class="p">(</span><span class="n">os_string</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="kc">None</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Return a random browser User Agent</span>
<span class="sd"> See searx/data/useragents.json</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">USER_AGENTS</span><span class="p">[</span><span class="s1">&#39;ua&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">os</span><span class="o">=</span><span class="n">os_string</span> <span class="ow">or</span> <span class="n">choice</span><span class="p">(</span><span class="n">USER_AGENTS</span><span class="p">[</span><span class="s1">&#39;os&#39;</span><span class="p">]),</span> <span class="n">version</span><span class="o">=</span><span class="n">choice</span><span class="p">(</span><span class="n">USER_AGENTS</span><span class="p">[</span><span class="s1">&#39;versions&#39;</span><span class="p">]))</span></div>
<span class="k">class</span> <span class="nc">_HTMLTextExtractorException</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Internal exception raised when the HTML is invalid&quot;&quot;&quot;</span>
<span class="k">class</span> <span class="nc">_HTMLTextExtractor</span><span class="p">(</span><span class="n">HTMLParser</span><span class="p">):</span> <span class="c1"># pylint: disable=W0223 # (see https://bugs.python.org/issue31844)</span>
<span class="sd">&quot;&quot;&quot;Internal class to extract text from HTML&quot;&quot;&quot;</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">HTMLParser</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result</span> <span class="o">=</span> <span class="p">[]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">tags</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">def</span> <span class="nf">handle_starttag</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tag</span><span class="p">,</span> <span class="n">attrs</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">tags</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">tag</span><span class="p">)</span>
<span class="k">if</span> <span class="n">tag</span> <span class="o">==</span> <span class="s1">&#39;br&#39;</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s1">&#39; &#39;</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">handle_endtag</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tag</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">tags</span><span class="p">:</span>
<span class="k">return</span>
<span class="k">if</span> <span class="n">tag</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">tags</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]:</span>
<span class="k">raise</span> <span class="n">_HTMLTextExtractorException</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">tags</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">is_valid_tag</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">tags</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">tags</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">_BLOCKED_TAGS</span>
<span class="k">def</span> <span class="nf">handle_data</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">is_valid_tag</span><span class="p">():</span>
<span class="k">return</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">handle_charref</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">is_valid_tag</span><span class="p">():</span>
<span class="k">return</span>
<span class="k">if</span> <span class="n">name</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">&#39;x&#39;</span><span class="p">,</span> <span class="s1">&#39;X&#39;</span><span class="p">):</span>
<span class="n">codepoint</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">name</span><span class="p">[</span><span class="mi">1</span><span class="p">:],</span> <span class="mi">16</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">codepoint</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">chr</span><span class="p">(</span><span class="n">codepoint</span><span class="p">))</span>
<span class="k">def</span> <span class="nf">handle_entityref</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">is_valid_tag</span><span class="p">():</span>
<span class="k">return</span>
<span class="c1"># codepoint = htmlentitydefs.name2codepoint[name]</span>
<span class="c1"># self.result.append(chr(codepoint))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">result</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">get_text</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s1">&#39;&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">result</span><span class="p">)</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span>
<div class="viewcode-block" id="html_to_text"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.html_to_text">[docs]</a><span class="k">def</span> <span class="nf">html_to_text</span><span class="p">(</span><span class="n">html_str</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Extract text from a HTML string</span>
<span class="sd"> Args:</span>
<span class="sd"> * html_str (str): string HTML</span>
<span class="sd"> Returns:</span>
<span class="sd"> * str: extracted text</span>
<span class="sd"> Examples:</span>
<span class="sd"> &gt;&gt;&gt; html_to_text(&#39;Example &lt;span id=&quot;42&quot;&gt;#2&lt;/span&gt;&#39;)</span>
<span class="sd"> &#39;Example #2&#39;</span>
<span class="sd"> &gt;&gt;&gt; html_to_text(&#39;&lt;style&gt;.span { color: red; }&lt;/style&gt;&lt;span&gt;Example&lt;/span&gt;&#39;)</span>
<span class="sd"> &#39;Example&#39;</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">html_str</span> <span class="o">=</span> <span class="n">html_str</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span><span class="p">,</span> <span class="s1">&#39; &#39;</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;</span><span class="se">\r</span><span class="s1">&#39;</span><span class="p">,</span> <span class="s1">&#39; &#39;</span><span class="p">)</span>
<span class="n">html_str</span> <span class="o">=</span> <span class="s1">&#39; &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">html_str</span><span class="o">.</span><span class="n">split</span><span class="p">())</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">_HTMLTextExtractor</span><span class="p">()</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">s</span><span class="o">.</span><span class="n">feed</span><span class="p">(</span><span class="n">html_str</span><span class="p">)</span>
<span class="k">except</span> <span class="n">_HTMLTextExtractorException</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;HTMLTextExtractor: invalid HTML</span><span class="se">\n</span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">html_str</span><span class="p">)</span>
<span class="k">return</span> <span class="n">s</span><span class="o">.</span><span class="n">get_text</span><span class="p">()</span></div>
<div class="viewcode-block" id="extract_text"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.extract_text">[docs]</a><span class="k">def</span> <span class="nf">extract_text</span><span class="p">(</span><span class="n">xpath_results</span><span class="p">,</span> <span class="n">allow_none</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span>
<span class="sd">&quot;&quot;&quot;Extract text from a lxml result</span>
<span class="sd"> * if xpath_results is list, extract the text from each result and concat the list</span>
<span class="sd"> * if xpath_results is a xml element, extract all the text node from it</span>
<span class="sd"> ( text_content() method from lxml )</span>
<span class="sd"> * if xpath_results is a string element, then it&#39;s already done</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">xpath_results</span><span class="p">,</span> <span class="nb">list</span><span class="p">):</span>
<span class="c1"># it&#39;s list of result : concat everything using recursive call</span>
<span class="n">result</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">xpath_results</span><span class="p">:</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">result</span> <span class="o">+</span> <span class="p">(</span><span class="n">extract_text</span><span class="p">(</span><span class="n">e</span><span class="p">)</span> <span class="ow">or</span> <span class="s1">&#39;&#39;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">result</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">xpath_results</span><span class="p">,</span> <span class="n">ElementBase</span><span class="p">):</span>
<span class="c1"># it&#39;s a element</span>
<span class="n">text</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">tostring</span><span class="p">(</span><span class="n">xpath_results</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="s1">&#39;unicode&#39;</span><span class="p">,</span> <span class="n">method</span><span class="o">=</span><span class="s1">&#39;text&#39;</span><span class="p">,</span> <span class="n">with_tail</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
<span class="n">text</span> <span class="o">=</span> <span class="n">text</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span><span class="p">,</span> <span class="s1">&#39; &#39;</span><span class="p">)</span>
<span class="k">return</span> <span class="s1">&#39; &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">text</span><span class="o">.</span><span class="n">split</span><span class="p">())</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">xpath_results</span><span class="p">,</span> <span class="p">(</span><span class="n">_ElementStringResult</span><span class="p">,</span> <span class="n">_ElementUnicodeResult</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">Number</span><span class="p">,</span> <span class="nb">bool</span><span class="p">)):</span>
<span class="k">return</span> <span class="nb">str</span><span class="p">(</span><span class="n">xpath_results</span><span class="p">)</span>
<span class="k">if</span> <span class="n">xpath_results</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">allow_none</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">if</span> <span class="n">xpath_results</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">allow_none</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;extract_text(None, allow_none=False)&#39;</span><span class="p">)</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;unsupported type&#39;</span><span class="p">)</span></div>
<div class="viewcode-block" id="normalize_url"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.normalize_url">[docs]</a><span class="k">def</span> <span class="nf">normalize_url</span><span class="p">(</span><span class="n">url</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">base_url</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Normalize URL: add protocol, join URL with base_url, add trailing slash if there is no path</span>
<span class="sd"> Args:</span>
<span class="sd"> * url (str): Relative URL</span>
<span class="sd"> * base_url (str): Base URL, it must be an absolute URL.</span>
<span class="sd"> Example:</span>
<span class="sd"> &gt;&gt;&gt; normalize_url(&#39;https://example.com&#39;, &#39;http://example.com/&#39;)</span>
<span class="sd"> &#39;https://example.com/&#39;</span>
<span class="sd"> &gt;&gt;&gt; normalize_url(&#39;//example.com&#39;, &#39;http://example.com/&#39;)</span>
<span class="sd"> &#39;http://example.com/&#39;</span>
<span class="sd"> &gt;&gt;&gt; normalize_url(&#39;//example.com&#39;, &#39;https://example.com/&#39;)</span>
<span class="sd"> &#39;https://example.com/&#39;</span>
<span class="sd"> &gt;&gt;&gt; normalize_url(&#39;/path?a=1&#39;, &#39;https://example.com&#39;)</span>
<span class="sd"> &#39;https://example.com/path?a=1&#39;</span>
<span class="sd"> &gt;&gt;&gt; normalize_url(&#39;&#39;, &#39;https://example.com&#39;)</span>
<span class="sd"> &#39;https://example.com/&#39;</span>
<span class="sd"> &gt;&gt;&gt; normalize_url(&#39;/test&#39;, &#39;/path&#39;)</span>
<span class="sd"> raise ValueError</span>
<span class="sd"> Raises:</span>
<span class="sd"> * lxml.etree.ParserError</span>
<span class="sd"> Returns:</span>
<span class="sd"> * str: normalized URL</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="n">url</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">&#39;//&#39;</span><span class="p">):</span>
<span class="c1"># add http or https to this kind of url //example.com/</span>
<span class="n">parsed_search_url</span> <span class="o">=</span> <span class="n">urlparse</span><span class="p">(</span><span class="n">base_url</span><span class="p">)</span>
<span class="n">url</span> <span class="o">=</span> <span class="s1">&#39;</span><span class="si">{0}</span><span class="s1">:</span><span class="si">{1}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">parsed_search_url</span><span class="o">.</span><span class="n">scheme</span> <span class="ow">or</span> <span class="s1">&#39;http&#39;</span><span class="p">,</span> <span class="n">url</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">url</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">&#39;/&#39;</span><span class="p">):</span>
<span class="c1"># fix relative url to the search engine</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">urljoin</span><span class="p">(</span><span class="n">base_url</span><span class="p">,</span> <span class="n">url</span><span class="p">)</span>
<span class="c1"># fix relative urls that fall through the crack</span>
<span class="k">if</span> <span class="s1">&#39;://&#39;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">url</span><span class="p">:</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">urljoin</span><span class="p">(</span><span class="n">base_url</span><span class="p">,</span> <span class="n">url</span><span class="p">)</span>
<span class="n">parsed_url</span> <span class="o">=</span> <span class="n">urlparse</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="c1"># add a / at this end of the url if there is no path</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">parsed_url</span><span class="o">.</span><span class="n">netloc</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;Cannot parse url&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">parsed_url</span><span class="o">.</span><span class="n">path</span><span class="p">:</span>
<span class="n">url</span> <span class="o">+=</span> <span class="s1">&#39;/&#39;</span>
<span class="k">return</span> <span class="n">url</span></div>
<div class="viewcode-block" id="extract_url"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.extract_url">[docs]</a><span class="k">def</span> <span class="nf">extract_url</span><span class="p">(</span><span class="n">xpath_results</span><span class="p">,</span> <span class="n">base_url</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Extract and normalize URL from lxml Element</span>
<span class="sd"> Args:</span>
<span class="sd"> * xpath_results (Union[List[html.HtmlElement], html.HtmlElement]): lxml Element(s)</span>
<span class="sd"> * base_url (str): Base URL</span>
<span class="sd"> Example:</span>
<span class="sd"> &gt;&gt;&gt; def f(s, search_url):</span>
<span class="sd"> &gt;&gt;&gt; return searx.utils.extract_url(html.fromstring(s), search_url)</span>
<span class="sd"> &gt;&gt;&gt; f(&#39;&lt;span id=&quot;42&quot;&gt;https://example.com&lt;/span&gt;&#39;, &#39;http://example.com/&#39;)</span>
<span class="sd"> &#39;https://example.com/&#39;</span>
<span class="sd"> &gt;&gt;&gt; f(&#39;https://example.com&#39;, &#39;http://example.com/&#39;)</span>
<span class="sd"> &#39;https://example.com/&#39;</span>
<span class="sd"> &gt;&gt;&gt; f(&#39;//example.com&#39;, &#39;http://example.com/&#39;)</span>
<span class="sd"> &#39;http://example.com/&#39;</span>
<span class="sd"> &gt;&gt;&gt; f(&#39;//example.com&#39;, &#39;https://example.com/&#39;)</span>
<span class="sd"> &#39;https://example.com/&#39;</span>
<span class="sd"> &gt;&gt;&gt; f(&#39;/path?a=1&#39;, &#39;https://example.com&#39;)</span>
<span class="sd"> &#39;https://example.com/path?a=1&#39;</span>
<span class="sd"> &gt;&gt;&gt; f(&#39;&#39;, &#39;https://example.com&#39;)</span>
<span class="sd"> raise lxml.etree.ParserError</span>
<span class="sd"> &gt;&gt;&gt; searx.utils.extract_url([], &#39;https://example.com&#39;)</span>
<span class="sd"> raise ValueError</span>
<span class="sd"> Raises:</span>
<span class="sd"> * ValueError</span>
<span class="sd"> * lxml.etree.ParserError</span>
<span class="sd"> Returns:</span>
<span class="sd"> * str: normalized URL</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="n">xpath_results</span> <span class="o">==</span> <span class="p">[]:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;Empty url resultset&#39;</span><span class="p">)</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">xpath_results</span><span class="p">)</span>
<span class="k">if</span> <span class="n">url</span><span class="p">:</span>
<span class="k">return</span> <span class="n">normalize_url</span><span class="p">(</span><span class="n">url</span><span class="p">,</span> <span class="n">base_url</span><span class="p">)</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;URL not found&#39;</span><span class="p">)</span></div>
<div class="viewcode-block" id="dict_subset"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.dict_subset">[docs]</a><span class="k">def</span> <span class="nf">dict_subset</span><span class="p">(</span><span class="n">dictionnary</span><span class="p">:</span> <span class="n">MutableMapping</span><span class="p">,</span> <span class="n">properties</span><span class="p">:</span> <span class="n">Set</span><span class="p">[</span><span class="nb">str</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Extract a subset of a dict</span>
<span class="sd"> Examples:</span>
<span class="sd"> &gt;&gt;&gt; dict_subset({&#39;A&#39;: &#39;a&#39;, &#39;B&#39;: &#39;b&#39;, &#39;C&#39;: &#39;c&#39;}, [&#39;A&#39;, &#39;C&#39;])</span>
<span class="sd"> {&#39;A&#39;: &#39;a&#39;, &#39;C&#39;: &#39;c&#39;}</span>
<span class="sd"> &gt;&gt;&gt; &gt;&gt; dict_subset({&#39;A&#39;: &#39;a&#39;, &#39;B&#39;: &#39;b&#39;, &#39;C&#39;: &#39;c&#39;}, [&#39;A&#39;, &#39;D&#39;])</span>
<span class="sd"> {&#39;A&#39;: &#39;a&#39;}</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">return</span> <span class="p">{</span><span class="n">k</span><span class="p">:</span> <span class="n">dictionnary</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">properties</span> <span class="k">if</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">dictionnary</span><span class="p">}</span></div>
<div class="viewcode-block" id="get_torrent_size"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.get_torrent_size">[docs]</a><span class="k">def</span> <span class="nf">get_torrent_size</span><span class="p">(</span><span class="n">filesize</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">filesize_multiplier</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">int</span><span class="p">]:</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Args:</span>
<span class="sd"> * filesize (str): size</span>
<span class="sd"> * filesize_multiplier (str): TB, GB, .... TiB, GiB...</span>
<span class="sd"> Returns:</span>
<span class="sd"> * int: number of bytes</span>
<span class="sd"> Example:</span>
<span class="sd"> &gt;&gt;&gt; get_torrent_size(&#39;5&#39;, &#39;GB&#39;)</span>
<span class="sd"> 5368709120</span>
<span class="sd"> &gt;&gt;&gt; get_torrent_size(&#39;3.14&#39;, &#39;MiB&#39;)</span>
<span class="sd"> 3140000</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">multiplier</span> <span class="o">=</span> <span class="n">_STORAGE_UNIT_VALUE</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">filesize_multiplier</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">return</span> <span class="nb">int</span><span class="p">(</span><span class="nb">float</span><span class="p">(</span><span class="n">filesize</span><span class="p">)</span> <span class="o">*</span> <span class="n">multiplier</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span></div>
<div class="viewcode-block" id="convert_str_to_int"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.convert_str_to_int">[docs]</a><span class="k">def</span> <span class="nf">convert_str_to_int</span><span class="p">(</span><span class="n">number_str</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">int</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Convert number_str to int or 0 if number_str is not a number.&quot;&quot;&quot;</span>
<span class="k">if</span> <span class="n">number_str</span><span class="o">.</span><span class="n">isdigit</span><span class="p">():</span>
<span class="k">return</span> <span class="nb">int</span><span class="p">(</span><span class="n">number_str</span><span class="p">)</span>
<span class="k">return</span> <span class="mi">0</span></div>
<div class="viewcode-block" id="int_or_zero"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.int_or_zero">[docs]</a><span class="k">def</span> <span class="nf">int_or_zero</span><span class="p">(</span><span class="n">num</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">],</span> <span class="nb">str</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="nb">int</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Convert num to int or 0. num can be either a str or a list.</span>
<span class="sd"> If num is a list, the first element is converted to int (or return 0 if the list is empty).</span>
<span class="sd"> If num is a str, see convert_str_to_int</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">num</span><span class="p">,</span> <span class="nb">list</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">num</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">1</span><span class="p">:</span>
<span class="k">return</span> <span class="mi">0</span>
<span class="n">num</span> <span class="o">=</span> <span class="n">num</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">return</span> <span class="n">convert_str_to_int</span><span class="p">(</span><span class="n">num</span><span class="p">)</span></div>
<div class="viewcode-block" id="is_valid_lang"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.is_valid_lang">[docs]</a><span class="k">def</span> <span class="nf">is_valid_lang</span><span class="p">(</span><span class="n">lang</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Optional</span><span class="p">[</span><span class="n">Tuple</span><span class="p">[</span><span class="nb">bool</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="nb">str</span><span class="p">]]:</span>
<span class="sd">&quot;&quot;&quot;Return language code and name if lang describe a language.</span>
<span class="sd"> Examples:</span>
<span class="sd"> &gt;&gt;&gt; is_valid_lang(&#39;zz&#39;)</span>
<span class="sd"> None</span>
<span class="sd"> &gt;&gt;&gt; is_valid_lang(&#39;uk&#39;)</span>
<span class="sd"> (True, &#39;uk&#39;, &#39;ukrainian&#39;)</span>
<span class="sd"> &gt;&gt;&gt; is_valid_lang(b&#39;uk&#39;)</span>
<span class="sd"> (True, &#39;uk&#39;, &#39;ukrainian&#39;)</span>
<span class="sd"> &gt;&gt;&gt; is_valid_lang(&#39;en&#39;)</span>
<span class="sd"> (True, &#39;en&#39;, &#39;english&#39;)</span>
<span class="sd"> &gt;&gt;&gt; searx.utils.is_valid_lang(&#39;Español&#39;)</span>
<span class="sd"> (True, &#39;es&#39;, &#39;spanish&#39;)</span>
<span class="sd"> &gt;&gt;&gt; searx.utils.is_valid_lang(&#39;Spanish&#39;)</span>
<span class="sd"> (True, &#39;es&#39;, &#39;spanish&#39;)</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">lang</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">):</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">lang</span><span class="o">.</span><span class="n">decode</span><span class="p">()</span>
<span class="n">is_abbr</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">lang</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">lang</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span>
<span class="k">if</span> <span class="n">is_abbr</span><span class="p">:</span>
<span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="n">language_codes</span><span class="p">:</span>
<span class="k">if</span> <span class="n">l</span><span class="p">[</span><span class="mi">0</span><span class="p">][:</span><span class="mi">2</span><span class="p">]</span> <span class="o">==</span> <span class="n">lang</span><span class="p">:</span>
<span class="k">return</span> <span class="p">(</span><span class="kc">True</span><span class="p">,</span> <span class="n">l</span><span class="p">[</span><span class="mi">0</span><span class="p">][:</span><span class="mi">2</span><span class="p">],</span> <span class="n">l</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span><span class="o">.</span><span class="n">lower</span><span class="p">())</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="n">language_codes</span><span class="p">:</span>
<span class="k">if</span> <span class="n">l</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="o">==</span> <span class="n">lang</span> <span class="ow">or</span> <span class="n">l</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="o">==</span> <span class="n">lang</span><span class="p">:</span>
<span class="k">return</span> <span class="p">(</span><span class="kc">True</span><span class="p">,</span> <span class="n">l</span><span class="p">[</span><span class="mi">0</span><span class="p">][:</span><span class="mi">2</span><span class="p">],</span> <span class="n">l</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span><span class="o">.</span><span class="n">lower</span><span class="p">())</span>
<span class="k">return</span> <span class="kc">None</span></div>
<span class="k">def</span> <span class="nf">_get_lang_to_lc_dict</span><span class="p">(</span><span class="n">lang_list</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">str</span><span class="p">]:</span>
<span class="n">key</span> <span class="o">=</span> <span class="nb">str</span><span class="p">(</span><span class="n">lang_list</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">_LANG_TO_LC_CACHE</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">lang</span> <span class="ow">in</span> <span class="n">lang_list</span><span class="p">:</span>
<span class="n">value</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">lang</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">)[</span><span class="mi">0</span><span class="p">],</span> <span class="n">lang</span><span class="p">)</span>
<span class="n">_LANG_TO_LC_CACHE</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">value</span>
<span class="k">return</span> <span class="n">value</span>
<span class="c1"># babel&#39;s get_global contains all sorts of miscellaneous locale and territory related data</span>
<span class="c1"># see get_global in: https://github.com/python-babel/babel/blob/master/babel/core.py</span>
<span class="k">def</span> <span class="nf">_get_from_babel</span><span class="p">(</span><span class="n">lang_code</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
<span class="n">match</span> <span class="o">=</span> <span class="n">get_global</span><span class="p">(</span><span class="n">key</span><span class="p">)</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">lang_code</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="s1">&#39;_&#39;</span><span class="p">))</span>
<span class="c1"># for some keys, such as territory_aliases, match may be a list</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">match</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="k">return</span> <span class="n">match</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">,</span> <span class="s1">&#39;-&#39;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">match</span>
<span class="k">def</span> <span class="nf">_match_language</span><span class="p">(</span><span class="n">lang_code</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">lang_list</span><span class="o">=</span><span class="p">[],</span> <span class="n">custom_aliases</span><span class="o">=</span><span class="p">{})</span> <span class="o">-&gt;</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> <span class="c1"># pylint: disable=W0102</span>
<span class="sd">&quot;&quot;&quot;auxiliary function to match lang_code in lang_list&quot;&quot;&quot;</span>
<span class="c1"># replace language code with a custom alias if necessary</span>
<span class="k">if</span> <span class="n">lang_code</span> <span class="ow">in</span> <span class="n">custom_aliases</span><span class="p">:</span>
<span class="n">lang_code</span> <span class="o">=</span> <span class="n">custom_aliases</span><span class="p">[</span><span class="n">lang_code</span><span class="p">]</span>
<span class="k">if</span> <span class="n">lang_code</span> <span class="ow">in</span> <span class="n">lang_list</span><span class="p">:</span>
<span class="k">return</span> <span class="n">lang_code</span>
<span class="c1"># try to get the most likely country for this language</span>
<span class="n">subtags</span> <span class="o">=</span> <span class="n">_get_from_babel</span><span class="p">(</span><span class="n">lang_code</span><span class="p">,</span> <span class="s1">&#39;likely_subtags&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">subtags</span><span class="p">:</span>
<span class="k">if</span> <span class="n">subtags</span> <span class="ow">in</span> <span class="n">lang_list</span><span class="p">:</span>
<span class="k">return</span> <span class="n">subtags</span>
<span class="n">subtag_parts</span> <span class="o">=</span> <span class="n">subtags</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">)</span>
<span class="n">new_code</span> <span class="o">=</span> <span class="n">subtag_parts</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">+</span> <span class="s1">&#39;-&#39;</span> <span class="o">+</span> <span class="n">subtag_parts</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>
<span class="k">if</span> <span class="n">new_code</span> <span class="ow">in</span> <span class="n">custom_aliases</span><span class="p">:</span>
<span class="n">new_code</span> <span class="o">=</span> <span class="n">custom_aliases</span><span class="p">[</span><span class="n">new_code</span><span class="p">]</span>
<span class="k">if</span> <span class="n">new_code</span> <span class="ow">in</span> <span class="n">lang_list</span><span class="p">:</span>
<span class="k">return</span> <span class="n">new_code</span>
<span class="c1"># try to get the any supported country for this language</span>
<span class="k">return</span> <span class="n">_get_lang_to_lc_dict</span><span class="p">(</span><span class="n">lang_list</span><span class="p">)</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">lang_code</span><span class="p">)</span>
<div class="viewcode-block" id="match_language"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.match_language">[docs]</a><span class="k">def</span> <span class="nf">match_language</span><span class="p">(</span> <span class="c1"># pylint: disable=W0102</span>
<span class="n">locale_code</span><span class="p">,</span> <span class="n">lang_list</span><span class="o">=</span><span class="p">[],</span> <span class="n">custom_aliases</span><span class="o">=</span><span class="p">{},</span> <span class="n">fallback</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;en-US&#39;</span>
<span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span>
<span class="sd">&quot;&quot;&quot;get the language code from lang_list that best matches locale_code&quot;&quot;&quot;</span>
<span class="c1"># try to get language from given locale_code</span>
<span class="n">language</span> <span class="o">=</span> <span class="n">_match_language</span><span class="p">(</span><span class="n">locale_code</span><span class="p">,</span> <span class="n">lang_list</span><span class="p">,</span> <span class="n">custom_aliases</span><span class="p">)</span>
<span class="k">if</span> <span class="n">language</span><span class="p">:</span>
<span class="k">return</span> <span class="n">language</span>
<span class="n">locale_parts</span> <span class="o">=</span> <span class="n">locale_code</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">)</span>
<span class="n">lang_code</span> <span class="o">=</span> <span class="n">locale_parts</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="c1"># if locale_code has script, try matching without it</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">locale_parts</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">2</span><span class="p">:</span>
<span class="n">language</span> <span class="o">=</span> <span class="n">_match_language</span><span class="p">(</span><span class="n">lang_code</span> <span class="o">+</span> <span class="s1">&#39;-&#39;</span> <span class="o">+</span> <span class="n">locale_parts</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">],</span> <span class="n">lang_list</span><span class="p">,</span> <span class="n">custom_aliases</span><span class="p">)</span>
<span class="k">if</span> <span class="n">language</span><span class="p">:</span>
<span class="k">return</span> <span class="n">language</span>
<span class="c1"># try to get language using an equivalent country code</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">locale_parts</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">country_alias</span> <span class="o">=</span> <span class="n">_get_from_babel</span><span class="p">(</span><span class="n">locale_parts</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">],</span> <span class="s1">&#39;territory_aliases&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">country_alias</span><span class="p">:</span>
<span class="n">language</span> <span class="o">=</span> <span class="n">_match_language</span><span class="p">(</span><span class="n">lang_code</span> <span class="o">+</span> <span class="s1">&#39;-&#39;</span> <span class="o">+</span> <span class="n">country_alias</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">lang_list</span><span class="p">,</span> <span class="n">custom_aliases</span><span class="p">)</span>
<span class="k">if</span> <span class="n">language</span><span class="p">:</span>
<span class="k">return</span> <span class="n">language</span>
<span class="c1"># try to get language using an equivalent language code</span>
<span class="n">alias</span> <span class="o">=</span> <span class="n">_get_from_babel</span><span class="p">(</span><span class="n">lang_code</span><span class="p">,</span> <span class="s1">&#39;language_aliases&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">alias</span><span class="p">:</span>
<span class="n">language</span> <span class="o">=</span> <span class="n">_match_language</span><span class="p">(</span><span class="n">alias</span><span class="p">,</span> <span class="n">lang_list</span><span class="p">,</span> <span class="n">custom_aliases</span><span class="p">)</span>
<span class="k">if</span> <span class="n">language</span><span class="p">:</span>
<span class="k">return</span> <span class="n">language</span>
<span class="k">if</span> <span class="n">lang_code</span> <span class="o">!=</span> <span class="n">locale_code</span><span class="p">:</span>
<span class="c1"># try to get language from given language without giving the country</span>
<span class="n">language</span> <span class="o">=</span> <span class="n">_match_language</span><span class="p">(</span><span class="n">lang_code</span><span class="p">,</span> <span class="n">lang_list</span><span class="p">,</span> <span class="n">custom_aliases</span><span class="p">)</span>
<span class="k">return</span> <span class="n">language</span> <span class="ow">or</span> <span class="n">fallback</span></div>
<span class="k">def</span> <span class="nf">load_module</span><span class="p">(</span><span class="n">filename</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">module_dir</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">types</span><span class="o">.</span><span class="n">ModuleType</span><span class="p">:</span>
<span class="n">modname</span> <span class="o">=</span> <span class="n">splitext</span><span class="p">(</span><span class="n">filename</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">modpath</span> <span class="o">=</span> <span class="n">join</span><span class="p">(</span><span class="n">module_dir</span><span class="p">,</span> <span class="n">filename</span><span class="p">)</span>
<span class="c1"># and https://docs.python.org/3/library/importlib.html#importing-a-source-file-directly</span>
<span class="n">spec</span> <span class="o">=</span> <span class="n">importlib</span><span class="o">.</span><span class="n">util</span><span class="o">.</span><span class="n">spec_from_file_location</span><span class="p">(</span><span class="n">modname</span><span class="p">,</span> <span class="n">modpath</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">spec</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Error loading &#39;</span><span class="si">{</span><span class="n">modpath</span><span class="si">}</span><span class="s2">&#39; module&quot;</span><span class="p">)</span>
<span class="n">module</span> <span class="o">=</span> <span class="n">importlib</span><span class="o">.</span><span class="n">util</span><span class="o">.</span><span class="n">module_from_spec</span><span class="p">(</span><span class="n">spec</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">spec</span><span class="o">.</span><span class="n">loader</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Error loading &#39;</span><span class="si">{</span><span class="n">modpath</span><span class="si">}</span><span class="s2">&#39; module&quot;</span><span class="p">)</span>
<span class="n">spec</span><span class="o">.</span><span class="n">loader</span><span class="o">.</span><span class="n">exec_module</span><span class="p">(</span><span class="n">module</span><span class="p">)</span>
<span class="k">return</span> <span class="n">module</span>
<div class="viewcode-block" id="to_string"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.to_string">[docs]</a><span class="k">def</span> <span class="nf">to_string</span><span class="p">(</span><span class="n">obj</span><span class="p">:</span> <span class="n">Any</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Convert obj to its string representation.&quot;&quot;&quot;</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">obj</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="k">return</span> <span class="n">obj</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">obj</span><span class="p">,</span> <span class="s1">&#39;__str__&#39;</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">str</span><span class="p">(</span><span class="n">obj</span><span class="p">)</span>
<span class="k">return</span> <span class="nb">repr</span><span class="p">(</span><span class="n">obj</span><span class="p">)</span></div>
<div class="viewcode-block" id="ecma_unescape"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.ecma_unescape">[docs]</a><span class="k">def</span> <span class="nf">ecma_unescape</span><span class="p">(</span><span class="n">string</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Python implementation of the unescape javascript function</span>
<span class="sd"> https://www.ecma-international.org/ecma-262/6.0/#sec-unescape-string</span>
<span class="sd"> https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Objets_globaux/unescape</span>
<span class="sd"> Examples:</span>
<span class="sd"> &gt;&gt;&gt; ecma_unescape(&#39;%u5409&#39;)</span>
<span class="sd"> &#39;吉&#39;</span>
<span class="sd"> &gt;&gt;&gt; ecma_unescape(&#39;%20&#39;)</span>
<span class="sd"> &#39; &#39;</span>
<span class="sd"> &gt;&gt;&gt; ecma_unescape(&#39;%F3&#39;)</span>
<span class="sd"> &#39;ó&#39;</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="c1"># &quot;%u5409&quot; becomes &quot;吉&quot;</span>
<span class="n">string</span> <span class="o">=</span> <span class="n">_ECMA_UNESCAPE4_RE</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="nb">chr</span><span class="p">(</span><span class="nb">int</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="mi">1</span><span class="p">),</span> <span class="mi">16</span><span class="p">)),</span> <span class="n">string</span><span class="p">)</span>
<span class="c1"># &quot;%20&quot; becomes &quot; &quot;, &quot;%F3&quot; becomes &quot;ó&quot;</span>
<span class="n">string</span> <span class="o">=</span> <span class="n">_ECMA_UNESCAPE2_RE</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="nb">chr</span><span class="p">(</span><span class="nb">int</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="mi">1</span><span class="p">),</span> <span class="mi">16</span><span class="p">)),</span> <span class="n">string</span><span class="p">)</span>
<span class="k">return</span> <span class="n">string</span></div>
<span class="k">def</span> <span class="nf">get_string_replaces_function</span><span class="p">(</span><span class="n">replaces</span><span class="p">:</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">str</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Callable</span><span class="p">[[</span><span class="nb">str</span><span class="p">],</span> <span class="nb">str</span><span class="p">]:</span>
<span class="n">rep</span> <span class="o">=</span> <span class="p">{</span><span class="n">re</span><span class="o">.</span><span class="n">escape</span><span class="p">(</span><span class="n">k</span><span class="p">):</span> <span class="n">v</span> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">replaces</span><span class="o">.</span><span class="n">items</span><span class="p">()}</span>
<span class="n">pattern</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="s2">&quot;|&quot;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">rep</span><span class="o">.</span><span class="n">keys</span><span class="p">()))</span>
<span class="k">def</span> <span class="nf">func</span><span class="p">(</span><span class="n">text</span><span class="p">):</span>
<span class="k">return</span> <span class="n">pattern</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="k">lambda</span> <span class="n">m</span><span class="p">:</span> <span class="n">rep</span><span class="p">[</span><span class="n">re</span><span class="o">.</span><span class="n">escape</span><span class="p">(</span><span class="n">m</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="mi">0</span><span class="p">))],</span> <span class="n">text</span><span class="p">)</span>
<span class="k">return</span> <span class="n">func</span>
<div class="viewcode-block" id="get_engine_from_settings"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.get_engine_from_settings">[docs]</a><span class="k">def</span> <span class="nf">get_engine_from_settings</span><span class="p">(</span><span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Return engine configuration from settings.yml of a given engine name&quot;&quot;&quot;</span>
<span class="k">if</span> <span class="s1">&#39;engines&#39;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">settings</span><span class="p">:</span>
<span class="k">return</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">engine</span> <span class="ow">in</span> <span class="n">settings</span><span class="p">[</span><span class="s1">&#39;engines&#39;</span><span class="p">]:</span>
<span class="k">if</span> <span class="s1">&#39;name&#39;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">engine</span><span class="p">:</span>
<span class="k">continue</span>
<span class="k">if</span> <span class="n">name</span> <span class="o">==</span> <span class="n">engine</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">]:</span>
<span class="k">return</span> <span class="n">engine</span>
<span class="k">return</span> <span class="p">{}</span></div>
<div class="viewcode-block" id="get_xpath"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.get_xpath">[docs]</a><span class="k">def</span> <span class="nf">get_xpath</span><span class="p">(</span><span class="n">xpath_spec</span><span class="p">:</span> <span class="n">XPathSpecType</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">XPath</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Return cached compiled XPath</span>
<span class="sd"> There is no thread lock.</span>
<span class="sd"> Worst case scenario, xpath_str is compiled more than one time.</span>
<span class="sd"> Args:</span>
<span class="sd"> * xpath_spec (str|lxml.etree.XPath): XPath as a str or lxml.etree.XPath</span>
<span class="sd"> Returns:</span>
<span class="sd"> * result (bool, float, list, str): Results.</span>
<span class="sd"> Raises:</span>
<span class="sd"> * TypeError: Raise when xpath_spec is neither a str nor a lxml.etree.XPath</span>
<span class="sd"> * SearxXPathSyntaxException: Raise when there is a syntax error in the XPath</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">xpath_spec</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">_XPATH_CACHE</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">xpath_spec</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">result</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">XPath</span><span class="p">(</span><span class="n">xpath_spec</span><span class="p">)</span>
<span class="k">except</span> <span class="n">XPathSyntaxError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">SearxXPathSyntaxException</span><span class="p">(</span><span class="n">xpath_spec</span><span class="p">,</span> <span class="nb">str</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">msg</span><span class="p">))</span> <span class="kn">from</span> <span class="nn">e</span>
<span class="n">_XPATH_CACHE</span><span class="p">[</span><span class="n">xpath_spec</span><span class="p">]</span> <span class="o">=</span> <span class="n">result</span>
<span class="k">return</span> <span class="n">result</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">xpath_spec</span><span class="p">,</span> <span class="n">XPath</span><span class="p">):</span>
<span class="k">return</span> <span class="n">xpath_spec</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s1">&#39;xpath_spec must be either a str or a lxml.etree.XPath&#39;</span><span class="p">)</span></div>
<div class="viewcode-block" id="eval_xpath"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.eval_xpath">[docs]</a><span class="k">def</span> <span class="nf">eval_xpath</span><span class="p">(</span><span class="n">element</span><span class="p">:</span> <span class="n">ElementBase</span><span class="p">,</span> <span class="n">xpath_spec</span><span class="p">:</span> <span class="n">XPathSpecType</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Equivalent of element.xpath(xpath_str) but compile xpath_str once for all.</span>
<span class="sd"> See https://lxml.de/xpathxslt.html#xpath-return-values</span>
<span class="sd"> Args:</span>
<span class="sd"> * element (ElementBase): [description]</span>
<span class="sd"> * xpath_spec (str|lxml.etree.XPath): XPath as a str or lxml.etree.XPath</span>
<span class="sd"> Returns:</span>
<span class="sd"> * result (bool, float, list, str): Results.</span>
<span class="sd"> Raises:</span>
<span class="sd"> * TypeError: Raise when xpath_spec is neither a str nor a lxml.etree.XPath</span>
<span class="sd"> * SearxXPathSyntaxException: Raise when there is a syntax error in the XPath</span>
<span class="sd"> * SearxEngineXPathException: Raise when the XPath can&#39;t be evaluated.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">xpath</span> <span class="o">=</span> <span class="n">get_xpath</span><span class="p">(</span><span class="n">xpath_spec</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">return</span> <span class="n">xpath</span><span class="p">(</span><span class="n">element</span><span class="p">)</span>
<span class="k">except</span> <span class="n">XPathError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="n">arg</span> <span class="o">=</span> <span class="s1">&#39; &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="nb">str</span><span class="p">(</span><span class="n">i</span><span class="p">)</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="p">])</span>
<span class="k">raise</span> <span class="n">SearxEngineXPathException</span><span class="p">(</span><span class="n">xpath_spec</span><span class="p">,</span> <span class="n">arg</span><span class="p">)</span> <span class="kn">from</span> <span class="nn">e</span></div>
<div class="viewcode-block" id="eval_xpath_list"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.eval_xpath_list">[docs]</a><span class="k">def</span> <span class="nf">eval_xpath_list</span><span class="p">(</span><span class="n">element</span><span class="p">:</span> <span class="n">ElementBase</span><span class="p">,</span> <span class="n">xpath_spec</span><span class="p">:</span> <span class="n">XPathSpecType</span><span class="p">,</span> <span class="n">min_len</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="kc">None</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Same as eval_xpath, check if the result is a list</span>
<span class="sd"> Args:</span>
<span class="sd"> * element (ElementBase): [description]</span>
<span class="sd"> * xpath_spec (str|lxml.etree.XPath): XPath as a str or lxml.etree.XPath</span>
<span class="sd"> * min_len (int, optional): [description]. Defaults to None.</span>
<span class="sd"> Raises:</span>
<span class="sd"> * TypeError: Raise when xpath_spec is neither a str nor a lxml.etree.XPath</span>
<span class="sd"> * SearxXPathSyntaxException: Raise when there is a syntax error in the XPath</span>
<span class="sd"> * SearxEngineXPathException: raise if the result is not a list</span>
<span class="sd"> Returns:</span>
<span class="sd"> * result (bool, float, list, str): Results.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">element</span><span class="p">,</span> <span class="n">xpath_spec</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="nb">list</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">SearxEngineXPathException</span><span class="p">(</span><span class="n">xpath_spec</span><span class="p">,</span> <span class="s1">&#39;the result is not a list&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">min_len</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">min_len</span> <span class="o">&gt;</span> <span class="nb">len</span><span class="p">(</span><span class="n">result</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">SearxEngineXPathException</span><span class="p">(</span><span class="n">xpath_spec</span><span class="p">,</span> <span class="s1">&#39;len(xpath_str) &lt; &#39;</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">min_len</span><span class="p">))</span>
<span class="k">return</span> <span class="n">result</span></div>
<div class="viewcode-block" id="eval_xpath_getindex"><a class="viewcode-back" href="../../src/searx.utils.html#searx.utils.eval_xpath_getindex">[docs]</a><span class="k">def</span> <span class="nf">eval_xpath_getindex</span><span class="p">(</span><span class="n">elements</span><span class="p">:</span> <span class="n">ElementBase</span><span class="p">,</span> <span class="n">xpath_spec</span><span class="p">:</span> <span class="n">XPathSpecType</span><span class="p">,</span> <span class="n">index</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="n">_NOTSET</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Call eval_xpath_list then get one element using the index parameter.</span>
<span class="sd"> If the index does not exist, either aise an exception is default is not set,</span>
<span class="sd"> other return the default value (can be None).</span>
<span class="sd"> Args:</span>
<span class="sd"> * elements (ElementBase): lxml element to apply the xpath.</span>
<span class="sd"> * xpath_spec (str|lxml.etree.XPath): XPath as a str or lxml.etree.XPath.</span>
<span class="sd"> * index (int): index to get</span>
<span class="sd"> * default (Object, optional): Defaults if index doesn&#39;t exist.</span>
<span class="sd"> Raises:</span>
<span class="sd"> * TypeError: Raise when xpath_spec is neither a str nor a lxml.etree.XPath</span>
<span class="sd"> * SearxXPathSyntaxException: Raise when there is a syntax error in the XPath</span>
<span class="sd"> * SearxEngineXPathException: if the index is not found. Also see eval_xpath.</span>
<span class="sd"> Returns:</span>
<span class="sd"> * result (bool, float, list, str): Results.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">elements</span><span class="p">,</span> <span class="n">xpath_spec</span><span class="p">)</span>
<span class="k">if</span> <span class="o">-</span><span class="nb">len</span><span class="p">(</span><span class="n">result</span><span class="p">)</span> <span class="o">&lt;=</span> <span class="n">index</span> <span class="o">&lt;</span> <span class="nb">len</span><span class="p">(</span><span class="n">result</span><span class="p">):</span>
<span class="k">return</span> <span class="n">result</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
<span class="k">if</span> <span class="n">default</span> <span class="o">==</span> <span class="n">_NOTSET</span><span class="p">:</span>
<span class="c1"># raise an SearxEngineXPathException instead of IndexError</span>
<span class="c1"># to record xpath_spec</span>
<span class="k">raise</span> <span class="n">SearxEngineXPathException</span><span class="p">(</span><span class="n">xpath_spec</span><span class="p">,</span> <span class="s1">&#39;index &#39;</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">index</span><span class="p">)</span> <span class="o">+</span> <span class="s1">&#39; not found&#39;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">default</span></div>
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<h1>Source code for searxng_extra.standalone_searx</h1><div class="highlight"><pre>
<span></span><span class="ch">#!/usr/bin/env python</span>
<span class="c1"># lint: pylint</span>
<span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># (C) Copyright Contributors to the SearXNG project.</span>
<span class="c1"># (C) Copyright Contributors to the searx project (2014 - 2021)</span>
<span class="sd">&quot;&quot;&quot;Script to run SearXNG from terminal.</span>
<span class="sd">Getting categories without initiate the engine will only return `[&#39;general&#39;]`</span>
<span class="sd">&gt;&gt;&gt; import searx.engines</span>
<span class="sd">... list(searx.engines.categories.keys())</span>
<span class="sd">[&#39;general&#39;]</span>
<span class="sd">&gt;&gt;&gt; import searx.search</span>
<span class="sd">... searx.search.initialize()</span>
<span class="sd">... list(searx.engines.categories.keys())</span>
<span class="sd">[&#39;general&#39;, &#39;it&#39;, &#39;science&#39;, &#39;images&#39;, &#39;news&#39;, &#39;videos&#39;, &#39;music&#39;, &#39;files&#39;, &#39;social media&#39;, &#39;map&#39;]</span>
<span class="sd">Example to use this script:</span>
<span class="sd">.. code:: bash</span>
<span class="sd"> $ python3 searxng_extra/standalone_searx.py rain</span>
<span class="sd">.. danger::</span>
<span class="sd"> Be warned, using the ``standalone_searx.py`` won&#39;t give you privacy!</span>
<span class="sd"> On the contrary, this script behaves like a SearXNG server: your IP is</span>
<span class="sd"> exposed and tracked by all active engines (google, bing, qwant, ... ), with</span>
<span class="sd"> every query!</span>
<span class="sd">Example to run it from python:</span>
<span class="sd">&gt;&gt;&gt; import importlib</span>
<span class="sd">... import json</span>
<span class="sd">... import sys</span>
<span class="sd">... import searx.engines</span>
<span class="sd">... import searx.search</span>
<span class="sd">... search_query = &#39;rain&#39;</span>
<span class="sd">... # initialize engines</span>
<span class="sd">... searx.search.initialize()</span>
<span class="sd">... # load engines categories once instead of each time the function called</span>
<span class="sd">... engine_cs = list(searx.engines.categories.keys())</span>
<span class="sd">... # load module</span>
<span class="sd">... spec = importlib.util.spec_from_file_location(</span>
<span class="sd">... &#39;utils.standalone_searx&#39;, &#39;searxng_extra/standalone_searx.py&#39;)</span>
<span class="sd">... sas = importlib.util.module_from_spec(spec)</span>
<span class="sd">... spec.loader.exec_module(sas)</span>
<span class="sd">... # use function from module</span>
<span class="sd">... prog_args = sas.parse_argument([search_query], category_choices=engine_cs)</span>
<span class="sd">... search_q = sas.get_search_query(prog_args, engine_categories=engine_cs)</span>
<span class="sd">... res_dict = sas.to_dict(search_q)</span>
<span class="sd">... sys.stdout.write(json.dumps(</span>
<span class="sd">... res_dict, sort_keys=True, indent=4, ensure_ascii=False,</span>
<span class="sd">... default=sas.json_serial))</span>
<span class="sd">{</span>
<span class="sd"> &quot;answers&quot;: [],</span>
<span class="sd"> &quot;infoboxes&quot;: [ {...} ],</span>
<span class="sd"> &quot;paging&quot;: true,</span>
<span class="sd"> &quot;results&quot;: [... ],</span>
<span class="sd"> &quot;results_number&quot;: 820000000.0,</span>
<span class="sd"> &quot;search&quot;: {</span>
<span class="sd"> &quot;lang&quot;: &quot;all&quot;,</span>
<span class="sd"> &quot;pageno&quot;: 1,</span>
<span class="sd"> &quot;q&quot;: &quot;rain&quot;,</span>
<span class="sd"> &quot;safesearch&quot;: 0,</span>
<span class="sd"> &quot;timerange&quot;: null</span>
<span class="sd"> },</span>
<span class="sd"> &quot;suggestions&quot;: [...]</span>
<span class="sd">}</span>
<span class="sd">&quot;&quot;&quot;</span> <span class="c1"># pylint: disable=line-too-long</span>
<span class="kn">import</span> <span class="nn">argparse</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">from</span> <span class="nn">datetime</span> <span class="kn">import</span> <span class="n">datetime</span>
<span class="kn">from</span> <span class="nn">json</span> <span class="kn">import</span> <span class="n">dumps</span>
<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Any</span><span class="p">,</span> <span class="n">Dict</span><span class="p">,</span> <span class="n">List</span><span class="p">,</span> <span class="n">Optional</span>
<span class="kn">import</span> <span class="nn">searx</span>
<span class="kn">import</span> <span class="nn">searx.preferences</span>
<span class="kn">import</span> <span class="nn">searx.query</span>
<span class="kn">import</span> <span class="nn">searx.search</span>
<span class="kn">import</span> <span class="nn">searx.webadapter</span>
<span class="n">EngineCategoriesVar</span> <span class="o">=</span> <span class="n">Optional</span><span class="p">[</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]]</span>
<div class="viewcode-block" id="get_search_query"><a class="viewcode-back" href="../../dev/searxng_extra/standalone_searx.py.html#searxng_extra.standalone_searx.get_search_query">[docs]</a><span class="k">def</span> <span class="nf">get_search_query</span><span class="p">(</span>
<span class="n">args</span><span class="p">:</span> <span class="n">argparse</span><span class="o">.</span><span class="n">Namespace</span><span class="p">,</span> <span class="n">engine_categories</span><span class="p">:</span> <span class="n">EngineCategoriesVar</span> <span class="o">=</span> <span class="kc">None</span>
<span class="p">)</span> <span class="o">-&gt;</span> <span class="n">searx</span><span class="o">.</span><span class="n">search</span><span class="o">.</span><span class="n">SearchQuery</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Get search results for the query&quot;&quot;&quot;</span>
<span class="k">if</span> <span class="n">engine_categories</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">engine_categories</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">searx</span><span class="o">.</span><span class="n">engines</span><span class="o">.</span><span class="n">categories</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">category</span> <span class="o">=</span> <span class="n">args</span><span class="o">.</span><span class="n">category</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="s1">&#39;utf-8&#39;</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">AttributeError</span><span class="p">:</span>
<span class="n">category</span> <span class="o">=</span> <span class="n">args</span><span class="o">.</span><span class="n">category</span>
<span class="n">form</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;q&quot;</span><span class="p">:</span> <span class="n">args</span><span class="o">.</span><span class="n">query</span><span class="p">,</span>
<span class="s2">&quot;categories&quot;</span><span class="p">:</span> <span class="n">category</span><span class="p">,</span>
<span class="s2">&quot;pageno&quot;</span><span class="p">:</span> <span class="nb">str</span><span class="p">(</span><span class="n">args</span><span class="o">.</span><span class="n">pageno</span><span class="p">),</span>
<span class="s2">&quot;language&quot;</span><span class="p">:</span> <span class="n">args</span><span class="o">.</span><span class="n">lang</span><span class="p">,</span>
<span class="s2">&quot;time_range&quot;</span><span class="p">:</span> <span class="n">args</span><span class="o">.</span><span class="n">timerange</span><span class="p">,</span>
<span class="p">}</span>
<span class="n">preferences</span> <span class="o">=</span> <span class="n">searx</span><span class="o">.</span><span class="n">preferences</span><span class="o">.</span><span class="n">Preferences</span><span class="p">([</span><span class="s1">&#39;simple&#39;</span><span class="p">],</span> <span class="n">engine_categories</span><span class="p">,</span> <span class="n">searx</span><span class="o">.</span><span class="n">engines</span><span class="o">.</span><span class="n">engines</span><span class="p">,</span> <span class="p">[])</span>
<span class="n">preferences</span><span class="o">.</span><span class="n">key_value_settings</span><span class="p">[</span><span class="s1">&#39;safesearch&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">args</span><span class="o">.</span><span class="n">safesearch</span><span class="p">)</span>
<span class="n">search_query</span> <span class="o">=</span> <span class="n">searx</span><span class="o">.</span><span class="n">webadapter</span><span class="o">.</span><span class="n">get_search_query_from_webapp</span><span class="p">(</span><span class="n">preferences</span><span class="p">,</span> <span class="n">form</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">return</span> <span class="n">search_query</span></div>
<div class="viewcode-block" id="no_parsed_url"><a class="viewcode-back" href="../../dev/searxng_extra/standalone_searx.py.html#searxng_extra.standalone_searx.no_parsed_url">[docs]</a><span class="k">def</span> <span class="nf">no_parsed_url</span><span class="p">(</span><span class="n">results</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]])</span> <span class="o">-&gt;</span> <span class="n">List</span><span class="p">[</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]]:</span>
<span class="sd">&quot;&quot;&quot;Remove parsed url from dict.&quot;&quot;&quot;</span>
<span class="k">for</span> <span class="n">result</span> <span class="ow">in</span> <span class="n">results</span><span class="p">:</span>
<span class="k">del</span> <span class="n">result</span><span class="p">[</span><span class="s1">&#39;parsed_url&#39;</span><span class="p">]</span>
<span class="k">return</span> <span class="n">results</span></div>
<div class="viewcode-block" id="json_serial"><a class="viewcode-back" href="../../dev/searxng_extra/standalone_searx.py.html#searxng_extra.standalone_searx.json_serial">[docs]</a><span class="k">def</span> <span class="nf">json_serial</span><span class="p">(</span><span class="n">obj</span><span class="p">:</span> <span class="n">Any</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Any</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;JSON serializer for objects not serializable by default json code.</span>
<span class="sd"> :raise TypeError: raised when **obj** is not serializable</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">obj</span><span class="p">,</span> <span class="n">datetime</span><span class="p">):</span>
<span class="n">serial</span> <span class="o">=</span> <span class="n">obj</span><span class="o">.</span><span class="n">isoformat</span><span class="p">()</span>
<span class="k">return</span> <span class="n">serial</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">obj</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">):</span>
<span class="k">return</span> <span class="n">obj</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="s1">&#39;utf8&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">obj</span><span class="p">,</span> <span class="nb">set</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="n">obj</span><span class="p">)</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">&quot;Type (</span><span class="si">{}</span><span class="s2">) not serializable&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">obj</span><span class="p">)))</span></div>
<div class="viewcode-block" id="to_dict"><a class="viewcode-back" href="../../dev/searxng_extra/standalone_searx.py.html#searxng_extra.standalone_searx.to_dict">[docs]</a><span class="k">def</span> <span class="nf">to_dict</span><span class="p">(</span><span class="n">search_query</span><span class="p">:</span> <span class="n">searx</span><span class="o">.</span><span class="n">search</span><span class="o">.</span><span class="n">SearchQuery</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]:</span>
<span class="sd">&quot;&quot;&quot;Get result from parsed arguments.&quot;&quot;&quot;</span>
<span class="n">result_container</span> <span class="o">=</span> <span class="n">searx</span><span class="o">.</span><span class="n">search</span><span class="o">.</span><span class="n">Search</span><span class="p">(</span><span class="n">search_query</span><span class="p">)</span><span class="o">.</span><span class="n">search</span><span class="p">()</span>
<span class="n">result_container_json</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;search&quot;</span><span class="p">:</span> <span class="p">{</span>
<span class="s2">&quot;q&quot;</span><span class="p">:</span> <span class="n">search_query</span><span class="o">.</span><span class="n">query</span><span class="p">,</span>
<span class="s2">&quot;pageno&quot;</span><span class="p">:</span> <span class="n">search_query</span><span class="o">.</span><span class="n">pageno</span><span class="p">,</span>
<span class="s2">&quot;lang&quot;</span><span class="p">:</span> <span class="n">search_query</span><span class="o">.</span><span class="n">lang</span><span class="p">,</span>
<span class="s2">&quot;safesearch&quot;</span><span class="p">:</span> <span class="n">search_query</span><span class="o">.</span><span class="n">safesearch</span><span class="p">,</span>
<span class="s2">&quot;timerange&quot;</span><span class="p">:</span> <span class="n">search_query</span><span class="o">.</span><span class="n">time_range</span><span class="p">,</span>
<span class="p">},</span>
<span class="s2">&quot;results&quot;</span><span class="p">:</span> <span class="n">no_parsed_url</span><span class="p">(</span><span class="n">result_container</span><span class="o">.</span><span class="n">get_ordered_results</span><span class="p">()),</span>
<span class="s2">&quot;infoboxes&quot;</span><span class="p">:</span> <span class="n">result_container</span><span class="o">.</span><span class="n">infoboxes</span><span class="p">,</span>
<span class="s2">&quot;suggestions&quot;</span><span class="p">:</span> <span class="nb">list</span><span class="p">(</span><span class="n">result_container</span><span class="o">.</span><span class="n">suggestions</span><span class="p">),</span>
<span class="s2">&quot;answers&quot;</span><span class="p">:</span> <span class="nb">list</span><span class="p">(</span><span class="n">result_container</span><span class="o">.</span><span class="n">answers</span><span class="p">),</span>
<span class="s2">&quot;paging&quot;</span><span class="p">:</span> <span class="n">result_container</span><span class="o">.</span><span class="n">paging</span><span class="p">,</span>
<span class="s2">&quot;results_number&quot;</span><span class="p">:</span> <span class="n">result_container</span><span class="o">.</span><span class="n">results_number</span><span class="p">(),</span>
<span class="p">}</span>
<span class="k">return</span> <span class="n">result_container_json</span></div>
<div class="viewcode-block" id="parse_argument"><a class="viewcode-back" href="../../dev/searxng_extra/standalone_searx.py.html#searxng_extra.standalone_searx.parse_argument">[docs]</a><span class="k">def</span> <span class="nf">parse_argument</span><span class="p">(</span>
<span class="n">args</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> <span class="n">category_choices</span><span class="p">:</span> <span class="n">EngineCategoriesVar</span> <span class="o">=</span> <span class="kc">None</span>
<span class="p">)</span> <span class="o">-&gt;</span> <span class="n">argparse</span><span class="o">.</span><span class="n">Namespace</span><span class="p">:</span>
<span class="sd">&quot;&quot;&quot;Parse command line.</span>
<span class="sd"> :raise SystemExit: Query argument required on `args`</span>
<span class="sd"> Examples:</span>
<span class="sd"> &gt;&gt;&gt; import importlib</span>
<span class="sd"> ... # load module</span>
<span class="sd"> ... spec = importlib.util.spec_from_file_location(</span>
<span class="sd"> ... &#39;utils.standalone_searx&#39;, &#39;utils/standalone_searx.py&#39;)</span>
<span class="sd"> ... sas = importlib.util.module_from_spec(spec)</span>
<span class="sd"> ... spec.loader.exec_module(sas)</span>
<span class="sd"> ... sas.parse_argument()</span>
<span class="sd"> usage: ptipython [-h] [--category [{general}]] [--lang [LANG]] [--pageno [PAGENO]] [--safesearch [{0,1,2}]] [--timerange [{day,week,month,year}]]</span>
<span class="sd"> query</span>
<span class="sd"> SystemExit: 2</span>
<span class="sd"> &gt;&gt;&gt; sas.parse_argument([&#39;rain&#39;])</span>
<span class="sd"> Namespace(category=&#39;general&#39;, lang=&#39;all&#39;, pageno=1, query=&#39;rain&#39;, safesearch=&#39;0&#39;, timerange=None)</span>
<span class="sd"> &quot;&quot;&quot;</span> <span class="c1"># noqa: E501</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">category_choices</span><span class="p">:</span>
<span class="n">category_choices</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">searx</span><span class="o">.</span><span class="n">engines</span><span class="o">.</span><span class="n">categories</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span>
<span class="n">parser</span> <span class="o">=</span> <span class="n">argparse</span><span class="o">.</span><span class="n">ArgumentParser</span><span class="p">(</span><span class="n">description</span><span class="o">=</span><span class="s1">&#39;Standalone searx.&#39;</span><span class="p">)</span>
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span><span class="s1">&#39;query&#39;</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="nb">str</span><span class="p">,</span> <span class="n">help</span><span class="o">=</span><span class="s1">&#39;Text query&#39;</span><span class="p">)</span>
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span>
<span class="s1">&#39;--category&#39;</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="nb">str</span><span class="p">,</span> <span class="n">nargs</span><span class="o">=</span><span class="s1">&#39;?&#39;</span><span class="p">,</span> <span class="n">choices</span><span class="o">=</span><span class="n">category_choices</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="s1">&#39;general&#39;</span><span class="p">,</span> <span class="n">help</span><span class="o">=</span><span class="s1">&#39;Search category&#39;</span>
<span class="p">)</span>
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span><span class="s1">&#39;--lang&#39;</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="nb">str</span><span class="p">,</span> <span class="n">nargs</span><span class="o">=</span><span class="s1">&#39;?&#39;</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="s1">&#39;all&#39;</span><span class="p">,</span> <span class="n">help</span><span class="o">=</span><span class="s1">&#39;Search language&#39;</span><span class="p">)</span>
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span><span class="s1">&#39;--pageno&#39;</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="nb">int</span><span class="p">,</span> <span class="n">nargs</span><span class="o">=</span><span class="s1">&#39;?&#39;</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">help</span><span class="o">=</span><span class="s1">&#39;Page number starting from 1&#39;</span><span class="p">)</span>
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span>
<span class="s1">&#39;--safesearch&#39;</span><span class="p">,</span>
<span class="nb">type</span><span class="o">=</span><span class="nb">str</span><span class="p">,</span>
<span class="n">nargs</span><span class="o">=</span><span class="s1">&#39;?&#39;</span><span class="p">,</span>
<span class="n">choices</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;0&#39;</span><span class="p">,</span> <span class="s1">&#39;1&#39;</span><span class="p">,</span> <span class="s1">&#39;2&#39;</span><span class="p">],</span>
<span class="n">default</span><span class="o">=</span><span class="s1">&#39;0&#39;</span><span class="p">,</span>
<span class="n">help</span><span class="o">=</span><span class="s1">&#39;Safe content filter from none to strict&#39;</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span>
<span class="s1">&#39;--timerange&#39;</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="nb">str</span><span class="p">,</span> <span class="n">nargs</span><span class="o">=</span><span class="s1">&#39;?&#39;</span><span class="p">,</span> <span class="n">choices</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;day&#39;</span><span class="p">,</span> <span class="s1">&#39;week&#39;</span><span class="p">,</span> <span class="s1">&#39;month&#39;</span><span class="p">,</span> <span class="s1">&#39;year&#39;</span><span class="p">],</span> <span class="n">help</span><span class="o">=</span><span class="s1">&#39;Filter by time range&#39;</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">parser</span><span class="o">.</span><span class="n">parse_args</span><span class="p">(</span><span class="n">args</span><span class="p">)</span></div>
<span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s1">&#39;__main__&#39;</span><span class="p">:</span>
<span class="n">settings_engines</span> <span class="o">=</span> <span class="n">searx</span><span class="o">.</span><span class="n">settings</span><span class="p">[</span><span class="s1">&#39;engines&#39;</span><span class="p">]</span>
<span class="n">searx</span><span class="o">.</span><span class="n">search</span><span class="o">.</span><span class="n">load_engines</span><span class="p">(</span><span class="n">settings_engines</span><span class="p">)</span>
<span class="n">engine_cs</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">searx</span><span class="o">.</span><span class="n">engines</span><span class="o">.</span><span class="n">categories</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span>
<span class="n">prog_args</span> <span class="o">=</span> <span class="n">parse_argument</span><span class="p">(</span><span class="n">category_choices</span><span class="o">=</span><span class="n">engine_cs</span><span class="p">)</span>
<span class="n">searx</span><span class="o">.</span><span class="n">search</span><span class="o">.</span><span class="n">initialize_network</span><span class="p">(</span><span class="n">settings_engines</span><span class="p">,</span> <span class="n">searx</span><span class="o">.</span><span class="n">settings</span><span class="p">[</span><span class="s1">&#39;outgoing&#39;</span><span class="p">])</span>
<span class="n">searx</span><span class="o">.</span><span class="n">search</span><span class="o">.</span><span class="n">check_network_configuration</span><span class="p">()</span>
<span class="n">searx</span><span class="o">.</span><span class="n">search</span><span class="o">.</span><span class="n">initialize_metrics</span><span class="p">([</span><span class="n">engine</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">]</span> <span class="k">for</span> <span class="n">engine</span> <span class="ow">in</span> <span class="n">settings_engines</span><span class="p">])</span>
<span class="n">searx</span><span class="o">.</span><span class="n">search</span><span class="o">.</span><span class="n">initialize_processors</span><span class="p">(</span><span class="n">settings_engines</span><span class="p">)</span>
<span class="n">search_q</span> <span class="o">=</span> <span class="n">get_search_query</span><span class="p">(</span><span class="n">prog_args</span><span class="p">,</span> <span class="n">engine_categories</span><span class="o">=</span><span class="n">engine_cs</span><span class="p">)</span>
<span class="n">res_dict</span> <span class="o">=</span> <span class="n">to_dict</span><span class="p">(</span><span class="n">search_q</span><span class="p">)</span>
<span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">dumps</span><span class="p">(</span><span class="n">res_dict</span><span class="p">,</span> <span class="n">sort_keys</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">indent</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">ensure_ascii</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="n">json_serial</span><span class="p">))</span>
</pre></div>
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<h1>Source code for searxng_extra.update.update_engine_descriptions</h1><div class="highlight"><pre>
<span></span><span class="ch">#!/usr/bin/env python</span>
<span class="c1"># lint: pylint</span>
<span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="sd">&quot;&quot;&quot;Fetch website description from websites and from</span>
<span class="sd">:origin:`searx/engines/wikidata.py` engine.</span>
<span class="sd">Output file: :origin:`searx/data/engine_descriptions.json`.</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="c1"># pylint: disable=invalid-name, global-statement</span>
<span class="kn">import</span> <span class="nn">json</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="kn">import</span> <span class="n">urlparse</span>
<span class="kn">from</span> <span class="nn">os.path</span> <span class="kn">import</span> <span class="n">join</span>
<span class="kn">from</span> <span class="nn">lxml.html</span> <span class="kn">import</span> <span class="n">fromstring</span>
<span class="kn">from</span> <span class="nn">langdetect</span> <span class="kn">import</span> <span class="n">detect_langs</span>
<span class="kn">from</span> <span class="nn">langdetect.lang_detect_exception</span> <span class="kn">import</span> <span class="n">LangDetectException</span>
<span class="kn">from</span> <span class="nn">searx.engines</span> <span class="kn">import</span> <span class="n">wikidata</span><span class="p">,</span> <span class="n">set_loggers</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="n">extract_text</span><span class="p">,</span> <span class="n">match_language</span>
<span class="kn">from</span> <span class="nn">searx.locales</span> <span class="kn">import</span> <span class="n">LOCALE_NAMES</span>
<span class="kn">from</span> <span class="nn">searx</span> <span class="kn">import</span> <span class="n">searx_dir</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="n">gen_useragent</span>
<span class="kn">import</span> <span class="nn">searx.search</span>
<span class="kn">import</span> <span class="nn">searx.network</span>
<span class="n">set_loggers</span><span class="p">(</span><span class="n">wikidata</span><span class="p">,</span> <span class="s1">&#39;wikidata&#39;</span><span class="p">)</span>
<span class="n">SPARQL_WIKIPEDIA_ARTICLE</span> <span class="o">=</span> <span class="s2">&quot;&quot;&quot;</span>
<span class="s2">SELECT DISTINCT ?item ?name</span>
<span class="s2">WHERE {</span>
<span class="s2"> hint:Query hint:optimizer &quot;None&quot;.</span>
<span class="s2"> VALUES ?item { %IDS% }</span>
<span class="s2"> ?article schema:about ?item ;</span>
<span class="s2"> schema:inLanguage ?lang ;</span>
<span class="s2"> schema:name ?name ;</span>
<span class="s2"> schema:isPartOf [ wikibase:wikiGroup &quot;wikipedia&quot; ] .</span>
<span class="s2"> FILTER(?lang in (%LANGUAGES_SPARQL%)) .</span>
<span class="s2"> FILTER (!CONTAINS(?name, &#39;:&#39;)) .</span>
<span class="s2">}</span>
<span class="s2">&quot;&quot;&quot;</span>
<span class="n">SPARQL_DESCRIPTION</span> <span class="o">=</span> <span class="s2">&quot;&quot;&quot;</span>
<span class="s2">SELECT DISTINCT ?item ?itemDescription</span>
<span class="s2">WHERE {</span>
<span class="s2"> VALUES ?item { %IDS% }</span>
<span class="s2"> ?item schema:description ?itemDescription .</span>
<span class="s2"> FILTER (lang(?itemDescription) in (%LANGUAGES_SPARQL%))</span>
<span class="s2">}</span>
<span class="s2">ORDER BY ?itemLang</span>
<span class="s2">&quot;&quot;&quot;</span>
<span class="n">NOT_A_DESCRIPTION</span> <span class="o">=</span> <span class="p">[</span>
<span class="s1">&#39;web site&#39;</span><span class="p">,</span>
<span class="s1">&#39;site web&#39;</span><span class="p">,</span>
<span class="s1">&#39;komputa serĉilo&#39;</span><span class="p">,</span>
<span class="s1">&#39;interreta serĉilo&#39;</span><span class="p">,</span>
<span class="s1">&#39;bilaketa motor&#39;</span><span class="p">,</span>
<span class="s1">&#39;web search engine&#39;</span><span class="p">,</span>
<span class="s1">&#39;wikimedia täpsustuslehekülg&#39;</span><span class="p">,</span>
<span class="p">]</span>
<span class="n">SKIP_ENGINE_SOURCE</span> <span class="o">=</span> <span class="p">[</span>
<span class="c1"># fmt: off</span>
<span class="p">(</span><span class="s1">&#39;gitlab&#39;</span><span class="p">,</span> <span class="s1">&#39;wikidata&#39;</span><span class="p">)</span>
<span class="c1"># descriptions are about wikipedia disambiguation pages</span>
<span class="c1"># fmt: on</span>
<span class="p">]</span>
<span class="n">LANGUAGES</span> <span class="o">=</span> <span class="n">LOCALE_NAMES</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
<span class="n">WIKIPEDIA_LANGUAGES</span> <span class="o">=</span> <span class="p">{</span><span class="s1">&#39;language&#39;</span><span class="p">:</span> <span class="s1">&#39;wikipedia_language&#39;</span><span class="p">}</span>
<span class="n">LANGUAGES_SPARQL</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="n">IDS</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">descriptions</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">wd_to_engine_name</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">def</span> <span class="nf">normalize_description</span><span class="p">(</span><span class="n">description</span><span class="p">):</span>
<span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="p">[</span><span class="nb">chr</span><span class="p">(</span><span class="n">c</span><span class="p">)</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">31</span><span class="p">)]:</span>
<span class="n">description</span> <span class="o">=</span> <span class="n">description</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">c</span><span class="p">,</span> <span class="s1">&#39; &#39;</span><span class="p">)</span>
<span class="n">description</span> <span class="o">=</span> <span class="s1">&#39; &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">description</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span><span class="o">.</span><span class="n">split</span><span class="p">())</span>
<span class="k">return</span> <span class="n">description</span>
<span class="k">def</span> <span class="nf">update_description</span><span class="p">(</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">lang</span><span class="p">,</span> <span class="n">description</span><span class="p">,</span> <span class="n">source</span><span class="p">,</span> <span class="n">replace</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">description</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="k">return</span>
<span class="n">description</span> <span class="o">=</span> <span class="n">normalize_description</span><span class="p">(</span><span class="n">description</span><span class="p">)</span>
<span class="k">if</span> <span class="n">description</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="o">==</span> <span class="n">engine_name</span><span class="o">.</span><span class="n">lower</span><span class="p">():</span>
<span class="k">return</span>
<span class="k">if</span> <span class="n">description</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="ow">in</span> <span class="n">NOT_A_DESCRIPTION</span><span class="p">:</span>
<span class="k">return</span>
<span class="k">if</span> <span class="p">(</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">source</span><span class="p">)</span> <span class="ow">in</span> <span class="n">SKIP_ENGINE_SOURCE</span><span class="p">:</span>
<span class="k">return</span>
<span class="k">if</span> <span class="s1">&#39; &#39;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">description</span><span class="p">:</span>
<span class="c1"># skip unique word description (like &quot;website&quot;)</span>
<span class="k">return</span>
<span class="k">if</span> <span class="n">replace</span> <span class="ow">or</span> <span class="n">lang</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">descriptions</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]:</span>
<span class="n">descriptions</span><span class="p">[</span><span class="n">engine_name</span><span class="p">][</span><span class="n">lang</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="n">description</span><span class="p">,</span> <span class="n">source</span><span class="p">]</span>
<span class="k">def</span> <span class="nf">get_wikipedia_summary</span><span class="p">(</span><span class="n">lang</span><span class="p">,</span> <span class="n">pageid</span><span class="p">):</span>
<span class="n">params</span> <span class="o">=</span> <span class="p">{</span><span class="s1">&#39;language&#39;</span><span class="p">:</span> <span class="n">lang</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">,</span> <span class="s1">&#39;-&#39;</span><span class="p">),</span> <span class="s1">&#39;headers&#39;</span><span class="p">:</span> <span class="p">{}}</span>
<span class="n">searx</span><span class="o">.</span><span class="n">engines</span><span class="o">.</span><span class="n">engines</span><span class="p">[</span><span class="s1">&#39;wikipedia&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">request</span><span class="p">(</span><span class="n">pageid</span><span class="p">,</span> <span class="n">params</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">searx</span><span class="o">.</span><span class="n">network</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">],</span> <span class="n">headers</span><span class="o">=</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">],</span> <span class="n">timeout</span><span class="o">=</span><span class="mi">10</span><span class="p">)</span>
<span class="n">response</span><span class="o">.</span><span class="n">raise_for_status</span><span class="p">()</span>
<span class="n">api_result</span> <span class="o">=</span> <span class="n">json</span><span class="o">.</span><span class="n">loads</span><span class="p">(</span><span class="n">response</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="k">return</span> <span class="n">api_result</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;extract&#39;</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span> <span class="c1"># pylint: disable=broad-except</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">def</span> <span class="nf">detect_language</span><span class="p">(</span><span class="n">text</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">r</span> <span class="o">=</span> <span class="n">detect_langs</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">text</span><span class="p">))</span> <span class="c1"># pylint: disable=E1101</span>
<span class="k">except</span> <span class="n">LangDetectException</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">r</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">r</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">prob</span> <span class="o">&gt;</span> <span class="mf">0.95</span><span class="p">:</span>
<span class="k">return</span> <span class="n">r</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">lang</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">def</span> <span class="nf">get_website_description</span><span class="p">(</span><span class="n">url</span><span class="p">,</span> <span class="n">lang1</span><span class="p">,</span> <span class="n">lang2</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="n">headers</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;User-Agent&#39;</span><span class="p">:</span> <span class="n">gen_useragent</span><span class="p">(),</span>
<span class="s1">&#39;Accept&#39;</span><span class="p">:</span> <span class="s1">&#39;text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8&#39;</span><span class="p">,</span>
<span class="s1">&#39;DNT&#39;</span><span class="p">:</span> <span class="s1">&#39;1&#39;</span><span class="p">,</span>
<span class="s1">&#39;Upgrade-Insecure-Requests&#39;</span><span class="p">:</span> <span class="s1">&#39;1&#39;</span><span class="p">,</span>
<span class="s1">&#39;Sec-GPC&#39;</span><span class="p">:</span> <span class="s1">&#39;1&#39;</span><span class="p">,</span>
<span class="s1">&#39;Cache-Control&#39;</span><span class="p">:</span> <span class="s1">&#39;max-age=0&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="k">if</span> <span class="n">lang1</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">lang_list</span> <span class="o">=</span> <span class="p">[</span><span class="n">lang1</span><span class="p">]</span>
<span class="k">if</span> <span class="n">lang2</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">lang_list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">lang2</span><span class="p">)</span>
<span class="n">headers</span><span class="p">[</span><span class="s1">&#39;Accept-Language&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="s2">&quot;,&quot;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">lang_list</span><span class="p">)</span><span class="si">}</span><span class="s1">;q=0.8&#39;</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">searx</span><span class="o">.</span><span class="n">network</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">url</span><span class="p">,</span> <span class="n">headers</span><span class="o">=</span><span class="n">headers</span><span class="p">,</span> <span class="n">timeout</span><span class="o">=</span><span class="mi">10</span><span class="p">)</span>
<span class="n">response</span><span class="o">.</span><span class="n">raise_for_status</span><span class="p">()</span>
<span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span> <span class="c1"># pylint: disable=broad-except</span>
<span class="k">return</span> <span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">html</span> <span class="o">=</span> <span class="n">fromstring</span><span class="p">(</span><span class="n">response</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
<span class="n">html</span> <span class="o">=</span> <span class="n">fromstring</span><span class="p">(</span><span class="n">response</span><span class="o">.</span><span class="n">content</span><span class="p">)</span>
<span class="n">description</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">html</span><span class="o">.</span><span class="n">xpath</span><span class="p">(</span><span class="s1">&#39;/html/head/meta[@name=&quot;description&quot;]/@content&#39;</span><span class="p">))</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">description</span><span class="p">:</span>
<span class="n">description</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">html</span><span class="o">.</span><span class="n">xpath</span><span class="p">(</span><span class="s1">&#39;/html/head/meta[@property=&quot;og:description&quot;]/@content&#39;</span><span class="p">))</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">description</span><span class="p">:</span>
<span class="n">description</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">html</span><span class="o">.</span><span class="n">xpath</span><span class="p">(</span><span class="s1">&#39;/html/head/title&#39;</span><span class="p">))</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">html</span><span class="o">.</span><span class="n">xpath</span><span class="p">(</span><span class="s1">&#39;/html/@lang&#39;</span><span class="p">))</span>
<span class="k">if</span> <span class="n">lang</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span><span class="n">lang1</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">lang1</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">detect_language</span><span class="p">(</span><span class="n">description</span><span class="p">)</span> <span class="ow">or</span> <span class="n">lang</span> <span class="ow">or</span> <span class="s1">&#39;en&#39;</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">lang</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">lang</span> <span class="o">=</span> <span class="n">lang</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">return</span> <span class="p">(</span><span class="n">lang</span><span class="p">,</span> <span class="n">description</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">initialize</span><span class="p">():</span>
<span class="k">global</span> <span class="n">IDS</span><span class="p">,</span> <span class="n">WIKIPEDIA_LANGUAGES</span><span class="p">,</span> <span class="n">LANGUAGES_SPARQL</span>
<span class="n">searx</span><span class="o">.</span><span class="n">search</span><span class="o">.</span><span class="n">initialize</span><span class="p">()</span>
<span class="n">wikipedia_engine</span> <span class="o">=</span> <span class="n">searx</span><span class="o">.</span><span class="n">engines</span><span class="o">.</span><span class="n">engines</span><span class="p">[</span><span class="s1">&#39;wikipedia&#39;</span><span class="p">]</span>
<span class="n">WIKIPEDIA_LANGUAGES</span> <span class="o">=</span> <span class="p">{</span><span class="n">language</span><span class="p">:</span> <span class="n">wikipedia_engine</span><span class="o">.</span><span class="n">url_lang</span><span class="p">(</span><span class="n">language</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">,</span> <span class="s1">&#39;-&#39;</span><span class="p">))</span> <span class="k">for</span> <span class="n">language</span> <span class="ow">in</span> <span class="n">LANGUAGES</span><span class="p">}</span>
<span class="n">WIKIPEDIA_LANGUAGES</span><span class="p">[</span><span class="s1">&#39;nb_NO&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;no&#39;</span>
<span class="n">LANGUAGES_SPARQL</span> <span class="o">=</span> <span class="s1">&#39;, &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;&#39;</span><span class="si">{</span><span class="n">l</span><span class="si">}</span><span class="s2">&#39;&quot;</span> <span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="nb">set</span><span class="p">(</span><span class="n">WIKIPEDIA_LANGUAGES</span><span class="o">.</span><span class="n">values</span><span class="p">()))</span>
<span class="k">for</span> <span class="n">engine_name</span><span class="p">,</span> <span class="n">engine</span> <span class="ow">in</span> <span class="n">searx</span><span class="o">.</span><span class="n">engines</span><span class="o">.</span><span class="n">engines</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="n">descriptions</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">wikidata_id</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s2">&quot;about&quot;</span><span class="p">,</span> <span class="p">{})</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;wikidata_id&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">wikidata_id</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">wd_to_engine_name</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">wikidata_id</span><span class="p">,</span> <span class="nb">set</span><span class="p">())</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">engine_name</span><span class="p">)</span>
<span class="n">IDS</span> <span class="o">=</span> <span class="s1">&#39; &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="nb">list</span><span class="p">(</span><span class="nb">map</span><span class="p">(</span><span class="k">lambda</span> <span class="n">wd_id</span><span class="p">:</span> <span class="s1">&#39;wd:&#39;</span> <span class="o">+</span> <span class="n">wd_id</span><span class="p">,</span> <span class="n">wd_to_engine_name</span><span class="o">.</span><span class="n">keys</span><span class="p">())))</span>
<span class="k">def</span> <span class="nf">fetch_wikidata_descriptions</span><span class="p">():</span>
<span class="n">searx</span><span class="o">.</span><span class="n">network</span><span class="o">.</span><span class="n">set_timeout_for_thread</span><span class="p">(</span><span class="mi">60</span><span class="p">)</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">wikidata</span><span class="o">.</span><span class="n">send_wikidata_query</span><span class="p">(</span>
<span class="n">SPARQL_DESCRIPTION</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;%IDS%&#39;</span><span class="p">,</span> <span class="n">IDS</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;%LANGUAGES_SPARQL%&#39;</span><span class="p">,</span> <span class="n">LANGUAGES_SPARQL</span><span class="p">)</span>
<span class="p">)</span>
<span class="k">if</span> <span class="n">result</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">for</span> <span class="n">binding</span> <span class="ow">in</span> <span class="n">result</span><span class="p">[</span><span class="s1">&#39;results&#39;</span><span class="p">][</span><span class="s1">&#39;bindings&#39;</span><span class="p">]:</span>
<span class="n">wikidata_id</span> <span class="o">=</span> <span class="n">binding</span><span class="p">[</span><span class="s1">&#39;item&#39;</span><span class="p">][</span><span class="s1">&#39;value&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;http://www.wikidata.org/entity/&#39;</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">)</span>
<span class="n">wikidata_lang</span> <span class="o">=</span> <span class="n">binding</span><span class="p">[</span><span class="s1">&#39;itemDescription&#39;</span><span class="p">][</span><span class="s1">&#39;xml:lang&#39;</span><span class="p">]</span>
<span class="n">description</span> <span class="o">=</span> <span class="n">binding</span><span class="p">[</span><span class="s1">&#39;itemDescription&#39;</span><span class="p">][</span><span class="s1">&#39;value&#39;</span><span class="p">]</span>
<span class="k">for</span> <span class="n">engine_name</span> <span class="ow">in</span> <span class="n">wd_to_engine_name</span><span class="p">[</span><span class="n">wikidata_id</span><span class="p">]:</span>
<span class="k">for</span> <span class="n">lang</span> <span class="ow">in</span> <span class="n">LANGUAGES</span><span class="p">:</span>
<span class="k">if</span> <span class="n">WIKIPEDIA_LANGUAGES</span><span class="p">[</span><span class="n">lang</span><span class="p">]</span> <span class="o">==</span> <span class="n">wikidata_lang</span><span class="p">:</span>
<span class="n">update_description</span><span class="p">(</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">lang</span><span class="p">,</span> <span class="n">description</span><span class="p">,</span> <span class="s1">&#39;wikidata&#39;</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">fetch_wikipedia_descriptions</span><span class="p">():</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">wikidata</span><span class="o">.</span><span class="n">send_wikidata_query</span><span class="p">(</span>
<span class="n">SPARQL_WIKIPEDIA_ARTICLE</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;%IDS%&#39;</span><span class="p">,</span> <span class="n">IDS</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;%LANGUAGES_SPARQL%&#39;</span><span class="p">,</span> <span class="n">LANGUAGES_SPARQL</span><span class="p">)</span>
<span class="p">)</span>
<span class="k">if</span> <span class="n">result</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">for</span> <span class="n">binding</span> <span class="ow">in</span> <span class="n">result</span><span class="p">[</span><span class="s1">&#39;results&#39;</span><span class="p">][</span><span class="s1">&#39;bindings&#39;</span><span class="p">]:</span>
<span class="n">wikidata_id</span> <span class="o">=</span> <span class="n">binding</span><span class="p">[</span><span class="s1">&#39;item&#39;</span><span class="p">][</span><span class="s1">&#39;value&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;http://www.wikidata.org/entity/&#39;</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">)</span>
<span class="n">wikidata_lang</span> <span class="o">=</span> <span class="n">binding</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">][</span><span class="s1">&#39;xml:lang&#39;</span><span class="p">]</span>
<span class="n">pageid</span> <span class="o">=</span> <span class="n">binding</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">][</span><span class="s1">&#39;value&#39;</span><span class="p">]</span>
<span class="k">for</span> <span class="n">engine_name</span> <span class="ow">in</span> <span class="n">wd_to_engine_name</span><span class="p">[</span><span class="n">wikidata_id</span><span class="p">]:</span>
<span class="k">for</span> <span class="n">lang</span> <span class="ow">in</span> <span class="n">LANGUAGES</span><span class="p">:</span>
<span class="k">if</span> <span class="n">WIKIPEDIA_LANGUAGES</span><span class="p">[</span><span class="n">lang</span><span class="p">]</span> <span class="o">==</span> <span class="n">wikidata_lang</span><span class="p">:</span>
<span class="n">description</span> <span class="o">=</span> <span class="n">get_wikipedia_summary</span><span class="p">(</span><span class="n">lang</span><span class="p">,</span> <span class="n">pageid</span><span class="p">)</span>
<span class="n">update_description</span><span class="p">(</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">lang</span><span class="p">,</span> <span class="n">description</span><span class="p">,</span> <span class="s1">&#39;wikipedia&#39;</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">normalize_url</span><span class="p">(</span><span class="n">url</span><span class="p">):</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">url</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;</span><span class="si">{language}</span><span class="s1">&#39;</span><span class="p">,</span> <span class="s1">&#39;en&#39;</span><span class="p">)</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">urlparse</span><span class="p">(</span><span class="n">url</span><span class="p">)</span><span class="o">.</span><span class="n">_replace</span><span class="p">(</span><span class="n">path</span><span class="o">=</span><span class="s1">&#39;/&#39;</span><span class="p">,</span> <span class="n">params</span><span class="o">=</span><span class="s1">&#39;&#39;</span><span class="p">,</span> <span class="n">query</span><span class="o">=</span><span class="s1">&#39;&#39;</span><span class="p">,</span> <span class="n">fragment</span><span class="o">=</span><span class="s1">&#39;&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">geturl</span><span class="p">()</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">url</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;https://api.&#39;</span><span class="p">,</span> <span class="s1">&#39;https://&#39;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">url</span>
<span class="k">def</span> <span class="nf">fetch_website_description</span><span class="p">(</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">website</span><span class="p">):</span>
<span class="n">default_lang</span><span class="p">,</span> <span class="n">default_description</span> <span class="o">=</span> <span class="n">get_website_description</span><span class="p">(</span><span class="n">website</span><span class="p">,</span> <span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">default_lang</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">or</span> <span class="n">default_description</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="c1"># the front page can&#39;t be fetched: skip this engine</span>
<span class="k">return</span>
<span class="n">wikipedia_languages_r</span> <span class="o">=</span> <span class="p">{</span><span class="n">V</span><span class="p">:</span> <span class="n">K</span> <span class="k">for</span> <span class="n">K</span><span class="p">,</span> <span class="n">V</span> <span class="ow">in</span> <span class="n">WIKIPEDIA_LANGUAGES</span><span class="o">.</span><span class="n">items</span><span class="p">()}</span>
<span class="n">languages</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;en&#39;</span><span class="p">,</span> <span class="s1">&#39;es&#39;</span><span class="p">,</span> <span class="s1">&#39;pt&#39;</span><span class="p">,</span> <span class="s1">&#39;ru&#39;</span><span class="p">,</span> <span class="s1">&#39;tr&#39;</span><span class="p">,</span> <span class="s1">&#39;fr&#39;</span><span class="p">]</span>
<span class="n">languages</span> <span class="o">=</span> <span class="n">languages</span> <span class="o">+</span> <span class="p">[</span><span class="n">l</span> <span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="n">LANGUAGES</span> <span class="k">if</span> <span class="n">l</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">languages</span><span class="p">]</span>
<span class="n">previous_matched_lang</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">previous_count</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">for</span> <span class="n">lang</span> <span class="ow">in</span> <span class="n">languages</span><span class="p">:</span>
<span class="k">if</span> <span class="n">lang</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">descriptions</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]:</span>
<span class="n">fetched_lang</span><span class="p">,</span> <span class="n">desc</span> <span class="o">=</span> <span class="n">get_website_description</span><span class="p">(</span><span class="n">website</span><span class="p">,</span> <span class="n">lang</span><span class="p">,</span> <span class="n">WIKIPEDIA_LANGUAGES</span><span class="p">[</span><span class="n">lang</span><span class="p">])</span>
<span class="k">if</span> <span class="n">fetched_lang</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">or</span> <span class="n">desc</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">continue</span>
<span class="n">matched_lang</span> <span class="o">=</span> <span class="n">match_language</span><span class="p">(</span><span class="n">fetched_lang</span><span class="p">,</span> <span class="n">LANGUAGES</span><span class="p">,</span> <span class="n">fallback</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">matched_lang</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">fetched_wikipedia_lang</span> <span class="o">=</span> <span class="n">match_language</span><span class="p">(</span><span class="n">fetched_lang</span><span class="p">,</span> <span class="n">WIKIPEDIA_LANGUAGES</span><span class="o">.</span><span class="n">values</span><span class="p">(),</span> <span class="n">fallback</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
<span class="n">matched_lang</span> <span class="o">=</span> <span class="n">wikipedia_languages_r</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">fetched_wikipedia_lang</span><span class="p">)</span>
<span class="k">if</span> <span class="n">matched_lang</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">update_description</span><span class="p">(</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">matched_lang</span><span class="p">,</span> <span class="n">desc</span><span class="p">,</span> <span class="n">website</span><span class="p">,</span> <span class="n">replace</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
<span class="c1"># check if desc changed with the different lang values</span>
<span class="k">if</span> <span class="n">matched_lang</span> <span class="o">==</span> <span class="n">previous_matched_lang</span><span class="p">:</span>
<span class="n">previous_count</span> <span class="o">+=</span> <span class="mi">1</span>
<span class="k">if</span> <span class="n">previous_count</span> <span class="o">==</span> <span class="mi">6</span><span class="p">:</span>
<span class="c1"># the website has returned the same description for 6 different languages in Accept-Language header</span>
<span class="c1"># stop now</span>
<span class="k">break</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">previous_matched_lang</span> <span class="o">=</span> <span class="n">matched_lang</span>
<span class="n">previous_count</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">def</span> <span class="nf">fetch_website_descriptions</span><span class="p">():</span>
<span class="k">for</span> <span class="n">engine_name</span><span class="p">,</span> <span class="n">engine</span> <span class="ow">in</span> <span class="n">searx</span><span class="o">.</span><span class="n">engines</span><span class="o">.</span><span class="n">engines</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="n">website</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s2">&quot;about&quot;</span><span class="p">,</span> <span class="p">{})</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;website&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">website</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">and</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s2">&quot;search_url&quot;</span><span class="p">):</span>
<span class="n">website</span> <span class="o">=</span> <span class="n">normalize_url</span><span class="p">(</span><span class="nb">getattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s2">&quot;search_url&quot;</span><span class="p">))</span>
<span class="k">if</span> <span class="n">website</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">and</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s2">&quot;base_url&quot;</span><span class="p">):</span>
<span class="n">website</span> <span class="o">=</span> <span class="n">normalize_url</span><span class="p">(</span><span class="nb">getattr</span><span class="p">(</span><span class="n">engine</span><span class="p">,</span> <span class="s2">&quot;base_url&quot;</span><span class="p">))</span>
<span class="k">if</span> <span class="n">website</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">fetch_website_description</span><span class="p">(</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">website</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">get_engine_descriptions_filename</span><span class="p">():</span>
<span class="k">return</span> <span class="n">join</span><span class="p">(</span><span class="n">join</span><span class="p">(</span><span class="n">searx_dir</span><span class="p">,</span> <span class="s2">&quot;data&quot;</span><span class="p">),</span> <span class="s2">&quot;engine_descriptions.json&quot;</span><span class="p">)</span>
<div class="viewcode-block" id="get_output"><a class="viewcode-back" href="../../../dev/searxng_extra/update.html#searxng_extra.update.update_engine_descriptions.get_output">[docs]</a><span class="k">def</span> <span class="nf">get_output</span><span class="p">():</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> From descriptions[engine][language] = [description, source]</span>
<span class="sd"> To</span>
<span class="sd"> * output[language][engine] = description_and_source</span>
<span class="sd"> * description_and_source can be:</span>
<span class="sd"> * [description, source]</span>
<span class="sd"> * description (if source = &quot;wikipedia&quot;)</span>
<span class="sd"> * [f&quot;engine:lang&quot;, &quot;ref&quot;] (reference to another existing description)</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">output</span> <span class="o">=</span> <span class="p">{</span><span class="n">locale</span><span class="p">:</span> <span class="p">{}</span> <span class="k">for</span> <span class="n">locale</span> <span class="ow">in</span> <span class="n">LOCALE_NAMES</span><span class="p">}</span>
<span class="n">seen_descriptions</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">engine_name</span><span class="p">,</span> <span class="n">lang_descriptions</span> <span class="ow">in</span> <span class="n">descriptions</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="k">for</span> <span class="n">language</span><span class="p">,</span> <span class="n">description</span> <span class="ow">in</span> <span class="n">lang_descriptions</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="k">if</span> <span class="n">description</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="ow">in</span> <span class="n">seen_descriptions</span><span class="p">:</span>
<span class="n">ref</span> <span class="o">=</span> <span class="n">seen_descriptions</span><span class="p">[</span><span class="n">description</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span>
<span class="n">description</span> <span class="o">=</span> <span class="p">[</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">ref</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="si">}</span><span class="s1">:</span><span class="si">{</span><span class="n">ref</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">,</span> <span class="s1">&#39;ref&#39;</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">seen_descriptions</span><span class="p">[</span><span class="n">description</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span> <span class="o">=</span> <span class="p">(</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">language</span><span class="p">)</span>
<span class="k">if</span> <span class="n">description</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">==</span> <span class="s1">&#39;wikipedia&#39;</span><span class="p">:</span>
<span class="n">description</span> <span class="o">=</span> <span class="n">description</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">output</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">language</span><span class="p">,</span> <span class="p">{})</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">description</span><span class="p">)</span>
<span class="k">return</span> <span class="n">output</span></div>
<span class="k">def</span> <span class="nf">main</span><span class="p">():</span>
<span class="n">initialize</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">&#39;Fetching wikidata descriptions&#39;</span><span class="p">)</span>
<span class="n">fetch_wikidata_descriptions</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">&#39;Fetching wikipedia descriptions&#39;</span><span class="p">)</span>
<span class="n">fetch_wikipedia_descriptions</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">&#39;Fetching website descriptions&#39;</span><span class="p">)</span>
<span class="n">fetch_website_descriptions</span><span class="p">()</span>
<span class="n">output</span> <span class="o">=</span> <span class="n">get_output</span><span class="p">()</span>
<span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">get_engine_descriptions_filename</span><span class="p">(),</span> <span class="s1">&#39;w&#39;</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="s1">&#39;utf8&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">f</span><span class="p">:</span>
<span class="n">f</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">json</span><span class="o">.</span><span class="n">dumps</span><span class="p">(</span><span class="n">output</span><span class="p">,</span> <span class="n">indent</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">separators</span><span class="o">=</span><span class="p">(</span><span class="s1">&#39;,&#39;</span><span class="p">,</span> <span class="s1">&#39;:&#39;</span><span class="p">),</span> <span class="n">ensure_ascii</span><span class="o">=</span><span class="kc">False</span><span class="p">))</span>
<span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s2">&quot;__main__&quot;</span><span class="p">:</span>
<span class="n">main</span><span class="p">()</span>
</pre></div>
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<h1>Source code for searxng_extra.update.update_external_bangs</h1><div class="highlight"><pre>
<span></span><span class="ch">#!/usr/bin/env python</span>
<span class="c1"># lint: pylint</span>
<span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="sd">&quot;&quot;&quot;Update :origin:`searx/data/external_bangs.json` using the duckduckgo bangs</span>
<span class="sd">(:origin:`CI Update data ... &lt;.github/workflows/data-update.yml&gt;`).</span>
<span class="sd">https://duckduckgo.com/newbang loads:</span>
<span class="sd">* a javascript which provides the bang version ( https://duckduckgo.com/bv1.js )</span>
<span class="sd">* a JSON file which contains the bangs ( https://duckduckgo.com/bang.v260.js for example )</span>
<span class="sd">This script loads the javascript, then the bangs.</span>
<span class="sd">The javascript URL may change in the future ( for example</span>
<span class="sd">https://duckduckgo.com/bv2.js ), but most probably it will requires to update</span>
<span class="sd">RE_BANG_VERSION</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="c1"># pylint: disable=C0116</span>
<span class="kn">import</span> <span class="nn">json</span>
<span class="kn">import</span> <span class="nn">re</span>
<span class="kn">from</span> <span class="nn">os.path</span> <span class="kn">import</span> <span class="n">join</span>
<span class="kn">import</span> <span class="nn">httpx</span>
<span class="kn">from</span> <span class="nn">searx</span> <span class="kn">import</span> <span class="n">searx_dir</span> <span class="c1"># pylint: disable=E0401 C0413</span>
<span class="kn">from</span> <span class="nn">searx.external_bang</span> <span class="kn">import</span> <span class="n">LEAF_KEY</span>
<span class="c1"># from https://duckduckgo.com/newbang</span>
<span class="n">URL_BV1</span> <span class="o">=</span> <span class="s1">&#39;https://duckduckgo.com/bv1.js&#39;</span>
<span class="n">RE_BANG_VERSION</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="sa">r</span><span class="s1">&#39;\/bang\.v([0-9]+)\.js&#39;</span><span class="p">)</span>
<span class="n">HTTPS_COLON</span> <span class="o">=</span> <span class="s1">&#39;https:&#39;</span>
<span class="n">HTTP_COLON</span> <span class="o">=</span> <span class="s1">&#39;http:&#39;</span>
<span class="k">def</span> <span class="nf">get_bang_url</span><span class="p">():</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">httpx</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">URL_BV1</span><span class="p">)</span>
<span class="n">response</span><span class="o">.</span><span class="n">raise_for_status</span><span class="p">()</span>
<span class="n">r</span> <span class="o">=</span> <span class="n">RE_BANG_VERSION</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="n">response</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="k">return</span> <span class="sa">f</span><span class="s1">&#39;https://duckduckgo.com/bang.v</span><span class="si">{</span><span class="n">r</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="si">}</span><span class="s1">.js&#39;</span><span class="p">,</span> <span class="n">r</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">def</span> <span class="nf">fetch_ddg_bangs</span><span class="p">(</span><span class="n">url</span><span class="p">):</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">httpx</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="n">response</span><span class="o">.</span><span class="n">raise_for_status</span><span class="p">()</span>
<span class="k">return</span> <span class="n">json</span><span class="o">.</span><span class="n">loads</span><span class="p">(</span><span class="n">response</span><span class="o">.</span><span class="n">content</span><span class="o">.</span><span class="n">decode</span><span class="p">())</span>
<div class="viewcode-block" id="merge_when_no_leaf"><a class="viewcode-back" href="../../../dev/searxng_extra/update.html#searxng_extra.update.update_external_bangs.merge_when_no_leaf">[docs]</a><span class="k">def</span> <span class="nf">merge_when_no_leaf</span><span class="p">(</span><span class="n">node</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Minimize the number of nodes</span>
<span class="sd"> ``A -&gt; B -&gt; C``</span>
<span class="sd"> - ``B`` is child of ``A``</span>
<span class="sd"> - ``C`` is child of ``B``</span>
<span class="sd"> If there are no ``C`` equals to ``&lt;LEAF_KEY&gt;``, then each ``C`` are merged</span>
<span class="sd"> into ``A``. For example (5 nodes)::</span>
<span class="sd"> d -&gt; d -&gt; g -&gt; &lt;LEAF_KEY&gt; (ddg)</span>
<span class="sd"> -&gt; i -&gt; g -&gt; &lt;LEAF_KEY&gt; (dig)</span>
<span class="sd"> becomes (3 noodes)::</span>
<span class="sd"> d -&gt; dg -&gt; &lt;LEAF_KEY&gt;</span>
<span class="sd"> -&gt; ig -&gt; &lt;LEAF_KEY&gt;</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">restart</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="nb">dict</span><span class="p">):</span>
<span class="k">return</span>
<span class="c1"># create a copy of the keys so node can be modified</span>
<span class="n">keys</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span>
<span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">keys</span><span class="p">:</span>
<span class="k">if</span> <span class="n">key</span> <span class="o">==</span> <span class="n">LEAF_KEY</span><span class="p">:</span>
<span class="k">continue</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">node</span><span class="p">[</span><span class="n">key</span><span class="p">]</span>
<span class="n">value_keys</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">value</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span>
<span class="k">if</span> <span class="n">LEAF_KEY</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">value_keys</span><span class="p">:</span>
<span class="k">for</span> <span class="n">value_key</span> <span class="ow">in</span> <span class="n">value_keys</span><span class="p">:</span>
<span class="n">node</span><span class="p">[</span><span class="n">key</span> <span class="o">+</span> <span class="n">value_key</span><span class="p">]</span> <span class="o">=</span> <span class="n">value</span><span class="p">[</span><span class="n">value_key</span><span class="p">]</span>
<span class="n">merge_when_no_leaf</span><span class="p">(</span><span class="n">node</span><span class="p">[</span><span class="n">key</span> <span class="o">+</span> <span class="n">value_key</span><span class="p">])</span>
<span class="k">del</span> <span class="n">node</span><span class="p">[</span><span class="n">key</span><span class="p">]</span>
<span class="n">restart</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">merge_when_no_leaf</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">if</span> <span class="n">restart</span><span class="p">:</span>
<span class="n">merge_when_no_leaf</span><span class="p">(</span><span class="n">node</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">optimize_leaf</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">parent_key</span><span class="p">,</span> <span class="n">node</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="nb">dict</span><span class="p">):</span>
<span class="k">return</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span> <span class="ow">and</span> <span class="n">LEAF_KEY</span> <span class="ow">in</span> <span class="n">node</span> <span class="ow">and</span> <span class="n">parent</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">parent</span><span class="p">[</span><span class="n">parent_key</span><span class="p">]</span> <span class="o">=</span> <span class="n">node</span><span class="p">[</span><span class="n">LEAF_KEY</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">for</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span> <span class="ow">in</span> <span class="n">node</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="n">optimize_leaf</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">parse_ddg_bangs</span><span class="p">(</span><span class="n">ddg_bangs</span><span class="p">):</span>
<span class="n">bang_trie</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">bang_urls</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">bang_definition</span> <span class="ow">in</span> <span class="n">ddg_bangs</span><span class="p">:</span>
<span class="c1"># bang_list</span>
<span class="n">bang_url</span> <span class="o">=</span> <span class="n">bang_definition</span><span class="p">[</span><span class="s1">&#39;u&#39;</span><span class="p">]</span>
<span class="k">if</span> <span class="s1">&#39;{{</span><span class="si">{s}</span><span class="s1">}}&#39;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">bang_url</span><span class="p">:</span>
<span class="c1"># ignore invalid bang</span>
<span class="k">continue</span>
<span class="n">bang_url</span> <span class="o">=</span> <span class="n">bang_url</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;{{</span><span class="si">{s}</span><span class="s1">}}&#39;</span><span class="p">,</span> <span class="nb">chr</span><span class="p">(</span><span class="mi">2</span><span class="p">))</span>
<span class="c1"># only for the https protocol: &quot;https://example.com&quot; becomes &quot;//example.com&quot;</span>
<span class="k">if</span> <span class="n">bang_url</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="n">HTTPS_COLON</span> <span class="o">+</span> <span class="s1">&#39;//&#39;</span><span class="p">):</span>
<span class="n">bang_url</span> <span class="o">=</span> <span class="n">bang_url</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="n">HTTPS_COLON</span><span class="p">)</span> <span class="p">:]</span>
<span class="c1">#</span>
<span class="k">if</span> <span class="n">bang_url</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="n">HTTP_COLON</span> <span class="o">+</span> <span class="s1">&#39;//&#39;</span><span class="p">)</span> <span class="ow">and</span> <span class="n">bang_url</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="n">HTTP_COLON</span><span class="p">)</span> <span class="p">:]</span> <span class="ow">in</span> <span class="n">bang_urls</span><span class="p">:</span>
<span class="c1"># if the bang_url uses the http:// protocol, and the same URL exists in https://</span>
<span class="c1"># then reuse the https:// bang definition. (written //example.com)</span>
<span class="n">bang_def_output</span> <span class="o">=</span> <span class="n">bang_urls</span><span class="p">[</span><span class="n">bang_url</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="n">HTTP_COLON</span><span class="p">)</span> <span class="p">:]]</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># normal use case : new http:// URL or https:// URL (without &quot;https:&quot;, see above)</span>
<span class="n">bang_rank</span> <span class="o">=</span> <span class="nb">str</span><span class="p">(</span><span class="n">bang_definition</span><span class="p">[</span><span class="s1">&#39;r&#39;</span><span class="p">])</span>
<span class="n">bang_def_output</span> <span class="o">=</span> <span class="n">bang_url</span> <span class="o">+</span> <span class="nb">chr</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="n">bang_rank</span>
<span class="n">bang_def_output</span> <span class="o">=</span> <span class="n">bang_urls</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">bang_url</span><span class="p">,</span> <span class="n">bang_def_output</span><span class="p">)</span>
<span class="n">bang_urls</span><span class="p">[</span><span class="n">bang_url</span><span class="p">]</span> <span class="o">=</span> <span class="n">bang_def_output</span>
<span class="c1"># bang name</span>
<span class="n">bang</span> <span class="o">=</span> <span class="n">bang_definition</span><span class="p">[</span><span class="s1">&#39;t&#39;</span><span class="p">]</span>
<span class="c1"># bang_trie</span>
<span class="n">t</span> <span class="o">=</span> <span class="n">bang_trie</span>
<span class="k">for</span> <span class="n">bang_letter</span> <span class="ow">in</span> <span class="n">bang</span><span class="p">:</span>
<span class="n">t</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">bang_letter</span><span class="p">,</span> <span class="p">{})</span>
<span class="n">t</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">LEAF_KEY</span><span class="p">,</span> <span class="n">bang_def_output</span><span class="p">)</span>
<span class="c1"># optimize the trie</span>
<span class="n">merge_when_no_leaf</span><span class="p">(</span><span class="n">bang_trie</span><span class="p">)</span>
<span class="n">optimize_leaf</span><span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">,</span> <span class="n">bang_trie</span><span class="p">)</span>
<span class="k">return</span> <span class="n">bang_trie</span>
<span class="k">def</span> <span class="nf">get_bangs_filename</span><span class="p">():</span>
<span class="k">return</span> <span class="n">join</span><span class="p">(</span><span class="n">join</span><span class="p">(</span><span class="n">searx_dir</span><span class="p">,</span> <span class="s2">&quot;data&quot;</span><span class="p">),</span> <span class="s2">&quot;external_bangs.json&quot;</span><span class="p">)</span>
<span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s1">&#39;__main__&#39;</span><span class="p">:</span>
<span class="n">bangs_url</span><span class="p">,</span> <span class="n">bangs_version</span> <span class="o">=</span> <span class="n">get_bang_url</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">&#39;fetch bangs from </span><span class="si">{</span><span class="n">bangs_url</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">)</span>
<span class="n">output</span> <span class="o">=</span> <span class="p">{</span><span class="s1">&#39;version&#39;</span><span class="p">:</span> <span class="n">bangs_version</span><span class="p">,</span> <span class="s1">&#39;trie&#39;</span><span class="p">:</span> <span class="n">parse_ddg_bangs</span><span class="p">(</span><span class="n">fetch_ddg_bangs</span><span class="p">(</span><span class="n">bangs_url</span><span class="p">))}</span>
<span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">get_bangs_filename</span><span class="p">(),</span> <span class="s1">&#39;w&#39;</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="s2">&quot;utf8&quot;</span><span class="p">)</span> <span class="k">as</span> <span class="n">fp</span><span class="p">:</span>
<span class="n">json</span><span class="o">.</span><span class="n">dump</span><span class="p">(</span><span class="n">output</span><span class="p">,</span> <span class="n">fp</span><span class="p">,</span> <span class="n">ensure_ascii</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">indent</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span>
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<h1>Source code for searxng_extra.update.update_languages</h1><div class="highlight"><pre>
<span></span><span class="ch">#!/usr/bin/env python</span>
<span class="c1"># lint: pylint</span>
<span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="sd">&quot;&quot;&quot;This script generates languages.py from intersecting each engine&#39;s supported</span>
<span class="sd">languages.</span>
<span class="sd">Output files: :origin:`searx/data/engines_languages.json` and</span>
<span class="sd">:origin:`searx/languages.py` (:origin:`CI Update data ...</span>
<span class="sd">&lt;.github/workflows/data-update.yml&gt;`).</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="c1"># pylint: disable=invalid-name</span>
<span class="kn">from</span> <span class="nn">unicodedata</span> <span class="kn">import</span> <span class="n">lookup</span>
<span class="kn">import</span> <span class="nn">json</span>
<span class="kn">from</span> <span class="nn">pathlib</span> <span class="kn">import</span> <span class="n">Path</span>
<span class="kn">from</span> <span class="nn">pprint</span> <span class="kn">import</span> <span class="n">pformat</span>
<span class="kn">from</span> <span class="nn">babel</span> <span class="kn">import</span> <span class="n">Locale</span><span class="p">,</span> <span class="n">UnknownLocaleError</span>
<span class="kn">from</span> <span class="nn">babel.languages</span> <span class="kn">import</span> <span class="n">get_global</span>
<span class="kn">from</span> <span class="nn">babel.core</span> <span class="kn">import</span> <span class="n">parse_locale</span>
<span class="kn">from</span> <span class="nn">searx</span> <span class="kn">import</span> <span class="n">settings</span><span class="p">,</span> <span class="n">searx_dir</span>
<span class="kn">from</span> <span class="nn">searx.engines</span> <span class="kn">import</span> <span class="n">load_engines</span><span class="p">,</span> <span class="n">engines</span>
<span class="kn">from</span> <span class="nn">searx.network</span> <span class="kn">import</span> <span class="n">set_timeout_for_thread</span>
<span class="c1"># Output files.</span>
<span class="n">engines_languages_file</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="n">searx_dir</span><span class="p">)</span> <span class="o">/</span> <span class="s1">&#39;data&#39;</span> <span class="o">/</span> <span class="s1">&#39;engines_languages.json&#39;</span>
<span class="n">languages_file</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="n">searx_dir</span><span class="p">)</span> <span class="o">/</span> <span class="s1">&#39;languages.py&#39;</span>
<span class="c1"># Fetchs supported languages for each engine and writes json file with those.</span>
<span class="k">def</span> <span class="nf">fetch_supported_languages</span><span class="p">():</span>
<span class="n">set_timeout_for_thread</span><span class="p">(</span><span class="mf">10.0</span><span class="p">)</span>
<span class="n">engines_languages</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">names</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">engines</span><span class="p">)</span>
<span class="n">names</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
<span class="k">for</span> <span class="n">engine_name</span> <span class="ow">in</span> <span class="n">names</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">engines</span><span class="p">[</span><span class="n">engine_name</span><span class="p">],</span> <span class="s1">&#39;fetch_supported_languages&#39;</span><span class="p">):</span>
<span class="n">engines_languages</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]</span> <span class="o">=</span> <span class="n">engines</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]</span><span class="o">.</span><span class="n">fetch_supported_languages</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;fetched </span><span class="si">%s</span><span class="s2"> languages from engine </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">engines_languages</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]),</span> <span class="n">engine_name</span><span class="p">))</span>
<span class="k">if</span> <span class="nb">type</span><span class="p">(</span><span class="n">engines_languages</span><span class="p">[</span><span class="n">engine_name</span><span class="p">])</span> <span class="o">==</span> <span class="nb">list</span><span class="p">:</span> <span class="c1"># pylint: disable=unidiomatic-typecheck</span>
<span class="n">engines_languages</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]</span> <span class="o">=</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">engines_languages</span><span class="p">[</span><span class="n">engine_name</span><span class="p">])</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;fetched languages from </span><span class="si">%s</span><span class="s2"> engines&quot;</span> <span class="o">%</span> <span class="nb">len</span><span class="p">(</span><span class="n">engines_languages</span><span class="p">))</span>
<span class="c1"># write json file</span>
<span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">engines_languages_file</span><span class="p">,</span> <span class="s1">&#39;w&#39;</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="s1">&#39;utf-8&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">f</span><span class="p">:</span>
<span class="n">json</span><span class="o">.</span><span class="n">dump</span><span class="p">(</span><span class="n">engines_languages</span><span class="p">,</span> <span class="n">f</span><span class="p">,</span> <span class="n">indent</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> <span class="n">sort_keys</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
<span class="k">return</span> <span class="n">engines_languages</span>
<span class="c1"># Get babel Locale object from lang_code if possible.</span>
<span class="k">def</span> <span class="nf">get_locale</span><span class="p">(</span><span class="n">lang_code</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">locale</span> <span class="o">=</span> <span class="n">Locale</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">lang_code</span><span class="p">,</span> <span class="n">sep</span><span class="o">=</span><span class="s1">&#39;-&#39;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">locale</span>
<span class="k">except</span> <span class="p">(</span><span class="n">UnknownLocaleError</span><span class="p">,</span> <span class="ne">ValueError</span><span class="p">):</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="n">lang2emoji</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;ha&#39;</span><span class="p">:</span> <span class="s1">&#39;</span><span class="se">\U0001F1F3\U0001F1EA</span><span class="s1">&#39;</span><span class="p">,</span> <span class="c1"># Hausa / Niger</span>
<span class="s1">&#39;bs&#39;</span><span class="p">:</span> <span class="s1">&#39;</span><span class="se">\U0001F1E7\U0001F1E6</span><span class="s1">&#39;</span><span class="p">,</span> <span class="c1"># Bosnian / Bosnia &amp; Herzegovina</span>
<span class="s1">&#39;jp&#39;</span><span class="p">:</span> <span class="s1">&#39;</span><span class="se">\U0001F1EF\U0001F1F5</span><span class="s1">&#39;</span><span class="p">,</span> <span class="c1"># Japanese</span>
<span class="s1">&#39;ua&#39;</span><span class="p">:</span> <span class="s1">&#39;</span><span class="se">\U0001F1FA\U0001F1E6</span><span class="s1">&#39;</span><span class="p">,</span> <span class="c1"># Ukrainian</span>
<span class="s1">&#39;he&#39;</span><span class="p">:</span> <span class="s1">&#39;</span><span class="se">\U0001F1EE\U0001F1F7</span><span class="s1">&#39;</span><span class="p">,</span> <span class="c1"># Hebrew</span>
<span class="p">}</span>
<div class="viewcode-block" id="get_unicode_flag"><a class="viewcode-back" href="../../../dev/searxng_extra/update.html#searxng_extra.update.update_languages.get_unicode_flag">[docs]</a><span class="k">def</span> <span class="nf">get_unicode_flag</span><span class="p">(</span><span class="n">lang_code</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Determine a unicode flag (emoji) that fits to the ``lang_code``&quot;&quot;&quot;</span>
<span class="n">emoji</span> <span class="o">=</span> <span class="n">lang2emoji</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">lang_code</span><span class="o">.</span><span class="n">lower</span><span class="p">())</span>
<span class="k">if</span> <span class="n">emoji</span><span class="p">:</span>
<span class="k">return</span> <span class="n">emoji</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">lang_code</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="k">return</span> <span class="s1">&#39;</span><span class="se">\U0001F310</span><span class="s1">&#39;</span>
<span class="n">language</span> <span class="o">=</span> <span class="n">territory</span> <span class="o">=</span> <span class="n">script</span> <span class="o">=</span> <span class="n">variant</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">language</span><span class="p">,</span> <span class="n">territory</span><span class="p">,</span> <span class="n">script</span><span class="p">,</span> <span class="n">variant</span> <span class="o">=</span> <span class="n">parse_locale</span><span class="p">(</span><span class="n">lang_code</span><span class="p">,</span> <span class="s1">&#39;-&#39;</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">ValueError</span> <span class="k">as</span> <span class="n">exc</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="n">exc</span><span class="p">)</span>
<span class="c1"># https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">territory</span><span class="p">:</span>
<span class="c1"># https://www.unicode.org/emoji/charts/emoji-list.html#country-flag</span>
<span class="n">emoji</span> <span class="o">=</span> <span class="n">lang2emoji</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">language</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">emoji</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span>
<span class="s2">&quot;</span><span class="si">%s</span><span class="s2"> --&gt; language: </span><span class="si">%s</span><span class="s2"> / territory: </span><span class="si">%s</span><span class="s2"> / script: </span><span class="si">%s</span><span class="s2"> / variant: </span><span class="si">%s</span><span class="s2">&quot;</span>
<span class="o">%</span> <span class="p">(</span><span class="n">lang_code</span><span class="p">,</span> <span class="n">language</span><span class="p">,</span> <span class="n">territory</span><span class="p">,</span> <span class="n">script</span><span class="p">,</span> <span class="n">variant</span><span class="p">)</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">emoji</span>
<span class="n">emoji</span> <span class="o">=</span> <span class="n">lang2emoji</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">territory</span><span class="o">.</span><span class="n">lower</span><span class="p">())</span>
<span class="k">if</span> <span class="n">emoji</span><span class="p">:</span>
<span class="k">return</span> <span class="n">emoji</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">c1</span> <span class="o">=</span> <span class="n">lookup</span><span class="p">(</span><span class="s1">&#39;REGIONAL INDICATOR SYMBOL LETTER &#39;</span> <span class="o">+</span> <span class="n">territory</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="n">c2</span> <span class="o">=</span> <span class="n">lookup</span><span class="p">(</span><span class="s1">&#39;REGIONAL INDICATOR SYMBOL LETTER &#39;</span> <span class="o">+</span> <span class="n">territory</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="c1"># print(&quot;%s --&gt; territory: %s --&gt; %s%s&quot; %(lang_code, territory, c1, c2 ))</span>
<span class="k">except</span> <span class="ne">KeyError</span> <span class="k">as</span> <span class="n">exc</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;</span><span class="si">%s</span><span class="s2"> --&gt; territory: </span><span class="si">%s</span><span class="s2"> --&gt; </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">lang_code</span><span class="p">,</span> <span class="n">territory</span><span class="p">,</span> <span class="n">exc</span><span class="p">))</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">return</span> <span class="n">c1</span> <span class="o">+</span> <span class="n">c2</span></div>
<span class="k">def</span> <span class="nf">get_territory_name</span><span class="p">(</span><span class="n">lang_code</span><span class="p">):</span>
<span class="n">country_name</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">locale</span> <span class="o">=</span> <span class="n">get_locale</span><span class="p">(</span><span class="n">lang_code</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">if</span> <span class="n">locale</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">country_name</span> <span class="o">=</span> <span class="n">locale</span><span class="o">.</span><span class="n">get_territory_name</span><span class="p">()</span>
<span class="k">except</span> <span class="ne">FileNotFoundError</span> <span class="k">as</span> <span class="n">exc</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;ERROR: </span><span class="si">%s</span><span class="s2"> --&gt; </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">locale</span><span class="p">,</span> <span class="n">exc</span><span class="p">))</span>
<span class="k">return</span> <span class="n">country_name</span>
<span class="c1"># Join all language lists.</span>
<span class="k">def</span> <span class="nf">join_language_lists</span><span class="p">(</span><span class="n">engines_languages</span><span class="p">):</span>
<span class="n">language_list</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">engine_name</span> <span class="ow">in</span> <span class="n">engines_languages</span><span class="p">:</span>
<span class="k">for</span> <span class="n">lang_code</span> <span class="ow">in</span> <span class="n">engines_languages</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]:</span>
<span class="c1"># apply custom fixes if necessary</span>
<span class="k">if</span> <span class="n">lang_code</span> <span class="ow">in</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">engines</span><span class="p">[</span><span class="n">engine_name</span><span class="p">],</span> <span class="s1">&#39;language_aliases&#39;</span><span class="p">,</span> <span class="p">{})</span><span class="o">.</span><span class="n">values</span><span class="p">():</span>
<span class="n">lang_code</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span>
<span class="n">lc</span> <span class="k">for</span> <span class="n">lc</span><span class="p">,</span> <span class="n">alias</span> <span class="ow">in</span> <span class="n">engines</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]</span><span class="o">.</span><span class="n">language_aliases</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">lang_code</span> <span class="o">==</span> <span class="n">alias</span>
<span class="p">)</span>
<span class="n">locale</span> <span class="o">=</span> <span class="n">get_locale</span><span class="p">(</span><span class="n">lang_code</span><span class="p">)</span>
<span class="c1"># ensure that lang_code uses standard language and country codes</span>
<span class="k">if</span> <span class="n">locale</span> <span class="ow">and</span> <span class="n">locale</span><span class="o">.</span><span class="n">territory</span><span class="p">:</span>
<span class="n">lang_code</span> <span class="o">=</span> <span class="s2">&quot;</span><span class="si">{lang}</span><span class="s2">-</span><span class="si">{country}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">lang</span><span class="o">=</span><span class="n">locale</span><span class="o">.</span><span class="n">language</span><span class="p">,</span> <span class="n">country</span><span class="o">=</span><span class="n">locale</span><span class="o">.</span><span class="n">territory</span><span class="p">)</span>
<span class="n">short_code</span> <span class="o">=</span> <span class="n">lang_code</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
<span class="c1"># add language without country if not in list</span>
<span class="k">if</span> <span class="n">short_code</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">language_list</span><span class="p">:</span>
<span class="k">if</span> <span class="n">locale</span><span class="p">:</span>
<span class="c1"># get language&#39;s data from babel&#39;s Locale object</span>
<span class="n">language_name</span> <span class="o">=</span> <span class="n">locale</span><span class="o">.</span><span class="n">get_language_name</span><span class="p">()</span><span class="o">.</span><span class="n">title</span><span class="p">()</span>
<span class="n">english_name</span> <span class="o">=</span> <span class="n">locale</span><span class="o">.</span><span class="n">english_name</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39; (&#39;</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">elif</span> <span class="n">short_code</span> <span class="ow">in</span> <span class="n">engines_languages</span><span class="p">[</span><span class="s1">&#39;wikipedia&#39;</span><span class="p">]:</span>
<span class="c1"># get language&#39;s data from wikipedia if not known by babel</span>
<span class="n">language_name</span> <span class="o">=</span> <span class="n">engines_languages</span><span class="p">[</span><span class="s1">&#39;wikipedia&#39;</span><span class="p">][</span><span class="n">short_code</span><span class="p">][</span><span class="s1">&#39;name&#39;</span><span class="p">]</span>
<span class="n">english_name</span> <span class="o">=</span> <span class="n">engines_languages</span><span class="p">[</span><span class="s1">&#39;wikipedia&#39;</span><span class="p">][</span><span class="n">short_code</span><span class="p">][</span><span class="s1">&#39;english_name&#39;</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">language_name</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">english_name</span> <span class="o">=</span> <span class="kc">None</span>
<span class="c1"># add language to list</span>
<span class="n">language_list</span><span class="p">[</span><span class="n">short_code</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;name&#39;</span><span class="p">:</span> <span class="n">language_name</span><span class="p">,</span>
<span class="s1">&#39;english_name&#39;</span><span class="p">:</span> <span class="n">english_name</span><span class="p">,</span>
<span class="s1">&#39;counter&#39;</span><span class="p">:</span> <span class="nb">set</span><span class="p">(),</span>
<span class="s1">&#39;countries&#39;</span><span class="p">:</span> <span class="p">{},</span>
<span class="p">}</span>
<span class="c1"># add language with country if not in list</span>
<span class="k">if</span> <span class="n">lang_code</span> <span class="o">!=</span> <span class="n">short_code</span> <span class="ow">and</span> <span class="n">lang_code</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">language_list</span><span class="p">[</span><span class="n">short_code</span><span class="p">][</span><span class="s1">&#39;countries&#39;</span><span class="p">]:</span>
<span class="n">country_name</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="k">if</span> <span class="n">locale</span><span class="p">:</span>
<span class="c1"># get country name from babel&#39;s Locale object</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">country_name</span> <span class="o">=</span> <span class="n">locale</span><span class="o">.</span><span class="n">get_territory_name</span><span class="p">()</span>
<span class="k">except</span> <span class="ne">FileNotFoundError</span> <span class="k">as</span> <span class="n">exc</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;ERROR: </span><span class="si">%s</span><span class="s2"> --&gt; </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">locale</span><span class="p">,</span> <span class="n">exc</span><span class="p">))</span>
<span class="n">locale</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">language_list</span><span class="p">[</span><span class="n">short_code</span><span class="p">][</span><span class="s1">&#39;countries&#39;</span><span class="p">][</span><span class="n">lang_code</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;country_name&#39;</span><span class="p">:</span> <span class="n">country_name</span><span class="p">,</span>
<span class="s1">&#39;counter&#39;</span><span class="p">:</span> <span class="nb">set</span><span class="p">(),</span>
<span class="p">}</span>
<span class="c1"># count engine for both language_country combination and language alone</span>
<span class="n">language_list</span><span class="p">[</span><span class="n">short_code</span><span class="p">][</span><span class="s1">&#39;counter&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">engine_name</span><span class="p">)</span>
<span class="k">if</span> <span class="n">lang_code</span> <span class="o">!=</span> <span class="n">short_code</span><span class="p">:</span>
<span class="n">language_list</span><span class="p">[</span><span class="n">short_code</span><span class="p">][</span><span class="s1">&#39;countries&#39;</span><span class="p">][</span><span class="n">lang_code</span><span class="p">][</span><span class="s1">&#39;counter&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">engine_name</span><span class="p">)</span>
<span class="k">return</span> <span class="n">language_list</span>
<span class="c1"># Filter language list so it only includes the most supported languages and countries</span>
<span class="k">def</span> <span class="nf">filter_language_list</span><span class="p">(</span><span class="n">all_languages</span><span class="p">):</span>
<span class="n">min_engines_per_lang</span> <span class="o">=</span> <span class="mi">12</span>
<span class="n">min_engines_per_country</span> <span class="o">=</span> <span class="mi">7</span>
<span class="c1"># pylint: disable=consider-using-dict-items, consider-iterating-dictionary</span>
<span class="n">main_engines</span> <span class="o">=</span> <span class="p">[</span>
<span class="n">engine_name</span>
<span class="k">for</span> <span class="n">engine_name</span> <span class="ow">in</span> <span class="n">engines</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
<span class="k">if</span> <span class="s1">&#39;general&#39;</span> <span class="ow">in</span> <span class="n">engines</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]</span><span class="o">.</span><span class="n">categories</span>
<span class="ow">and</span> <span class="n">engines</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]</span><span class="o">.</span><span class="n">supported_languages</span>
<span class="ow">and</span> <span class="ow">not</span> <span class="n">engines</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]</span><span class="o">.</span><span class="n">disabled</span>
<span class="p">]</span>
<span class="c1"># filter list to include only languages supported by most engines or all default general engines</span>
<span class="n">filtered_languages</span> <span class="o">=</span> <span class="p">{</span>
<span class="n">code</span><span class="p">:</span> <span class="n">lang</span>
<span class="k">for</span> <span class="n">code</span><span class="p">,</span> <span class="n">lang</span> <span class="ow">in</span> <span class="n">all_languages</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
<span class="k">if</span> <span class="p">(</span>
<span class="nb">len</span><span class="p">(</span><span class="n">lang</span><span class="p">[</span><span class="s1">&#39;counter&#39;</span><span class="p">])</span> <span class="o">&gt;=</span> <span class="n">min_engines_per_lang</span>
<span class="ow">or</span> <span class="nb">all</span><span class="p">(</span><span class="n">main_engine</span> <span class="ow">in</span> <span class="n">lang</span><span class="p">[</span><span class="s1">&#39;counter&#39;</span><span class="p">]</span> <span class="k">for</span> <span class="n">main_engine</span> <span class="ow">in</span> <span class="n">main_engines</span><span class="p">)</span>
<span class="p">)</span>
<span class="p">}</span>
<span class="k">def</span> <span class="nf">_copy_lang_data</span><span class="p">(</span><span class="n">lang</span><span class="p">,</span> <span class="n">country_name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="n">new_dict</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">new_dict</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">all_languages</span><span class="p">[</span><span class="n">lang</span><span class="p">][</span><span class="s1">&#39;name&#39;</span><span class="p">]</span>
<span class="n">new_dict</span><span class="p">[</span><span class="s1">&#39;english_name&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">all_languages</span><span class="p">[</span><span class="n">lang</span><span class="p">][</span><span class="s1">&#39;english_name&#39;</span><span class="p">]</span>
<span class="k">if</span> <span class="n">country_name</span><span class="p">:</span>
<span class="n">new_dict</span><span class="p">[</span><span class="s1">&#39;country_name&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">country_name</span>
<span class="k">return</span> <span class="n">new_dict</span>
<span class="c1"># for each language get country codes supported by most engines or at least one country code</span>
<span class="n">filtered_languages_with_countries</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">lang</span><span class="p">,</span> <span class="n">lang_data</span> <span class="ow">in</span> <span class="n">filtered_languages</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="n">countries</span> <span class="o">=</span> <span class="n">lang_data</span><span class="p">[</span><span class="s1">&#39;countries&#39;</span><span class="p">]</span>
<span class="n">filtered_countries</span> <span class="o">=</span> <span class="p">{}</span>
<span class="c1"># get language&#39;s country codes with enough supported engines</span>
<span class="k">for</span> <span class="n">lang_country</span><span class="p">,</span> <span class="n">country_data</span> <span class="ow">in</span> <span class="n">countries</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">country_data</span><span class="p">[</span><span class="s1">&#39;counter&#39;</span><span class="p">])</span> <span class="o">&gt;=</span> <span class="n">min_engines_per_country</span><span class="p">:</span>
<span class="n">filtered_countries</span><span class="p">[</span><span class="n">lang_country</span><span class="p">]</span> <span class="o">=</span> <span class="n">_copy_lang_data</span><span class="p">(</span><span class="n">lang</span><span class="p">,</span> <span class="n">country_data</span><span class="p">[</span><span class="s1">&#39;country_name&#39;</span><span class="p">])</span>
<span class="c1"># add language without countries too if there&#39;s more than one country to choose from</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">filtered_countries</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">filtered_countries</span><span class="p">[</span><span class="n">lang</span><span class="p">]</span> <span class="o">=</span> <span class="n">_copy_lang_data</span><span class="p">(</span><span class="n">lang</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">filtered_countries</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">lang_country</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span><span class="nb">iter</span><span class="p">(</span><span class="n">filtered_countries</span><span class="p">))</span>
<span class="c1"># if no country has enough engines try to get most likely country code from babel</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">filtered_countries</span><span class="p">:</span>
<span class="n">lang_country</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">subtags</span> <span class="o">=</span> <span class="n">get_global</span><span class="p">(</span><span class="s1">&#39;likely_subtags&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">lang</span><span class="p">)</span>
<span class="k">if</span> <span class="n">subtags</span><span class="p">:</span>
<span class="n">country_code</span> <span class="o">=</span> <span class="n">subtags</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;_&#39;</span><span class="p">)[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">country_code</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="n">lang_country</span> <span class="o">=</span> <span class="s2">&quot;</span><span class="si">{lang}</span><span class="s2">-</span><span class="si">{country}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">lang</span><span class="o">=</span><span class="n">lang</span><span class="p">,</span> <span class="n">country</span><span class="o">=</span><span class="n">country_code</span><span class="p">)</span>
<span class="k">if</span> <span class="n">lang_country</span><span class="p">:</span>
<span class="n">filtered_countries</span><span class="p">[</span><span class="n">lang_country</span><span class="p">]</span> <span class="o">=</span> <span class="n">_copy_lang_data</span><span class="p">(</span><span class="n">lang</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">filtered_countries</span><span class="p">[</span><span class="n">lang</span><span class="p">]</span> <span class="o">=</span> <span class="n">_copy_lang_data</span><span class="p">(</span><span class="n">lang</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="n">filtered_languages_with_countries</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">filtered_countries</span><span class="p">)</span>
<span class="k">return</span> <span class="n">filtered_languages_with_countries</span>
<div class="viewcode-block" id="UnicodeEscape"><a class="viewcode-back" href="../../../dev/searxng_extra/update.html#searxng_extra.update.update_languages.UnicodeEscape">[docs]</a><span class="k">class</span> <span class="nc">UnicodeEscape</span><span class="p">(</span><span class="nb">str</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Escape unicode string in :py:obj:`pprint.pformat`&quot;&quot;&quot;</span>
<span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s2">&quot;&#39;&quot;</span> <span class="o">+</span> <span class="s2">&quot;&quot;</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="nb">chr</span><span class="p">(</span><span class="n">c</span><span class="p">)</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s1">&#39;unicode-escape&#39;</span><span class="p">)])</span> <span class="o">+</span> <span class="s2">&quot;&#39;&quot;</span></div>
<span class="c1"># Write languages.py.</span>
<span class="k">def</span> <span class="nf">write_languages_file</span><span class="p">(</span><span class="n">languages</span><span class="p">):</span>
<span class="n">file_headers</span> <span class="o">=</span> <span class="p">(</span>
<span class="s2">&quot;# -*- coding: utf-8 -*-&quot;</span><span class="p">,</span>
<span class="s2">&quot;# list of language codes&quot;</span><span class="p">,</span>
<span class="s2">&quot;# this file is generated automatically by utils/fetch_languages.py&quot;</span><span class="p">,</span>
<span class="s2">&quot;language_codes = (</span><span class="se">\n</span><span class="s2">&quot;</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">language_codes</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">code</span> <span class="ow">in</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">languages</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="n">languages</span><span class="p">[</span><span class="n">code</span><span class="p">][</span><span class="s1">&#39;name&#39;</span><span class="p">]</span>
<span class="k">if</span> <span class="n">name</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;ERROR: languages[&#39;</span><span class="si">%s</span><span class="s2">&#39;] --&gt; </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">code</span><span class="p">,</span> <span class="n">languages</span><span class="p">[</span><span class="n">code</span><span class="p">]))</span>
<span class="k">continue</span>
<span class="n">flag</span> <span class="o">=</span> <span class="n">get_unicode_flag</span><span class="p">(</span><span class="n">code</span><span class="p">)</span> <span class="ow">or</span> <span class="s1">&#39;&#39;</span>
<span class="n">item</span> <span class="o">=</span> <span class="p">(</span>
<span class="n">code</span><span class="p">,</span>
<span class="n">languages</span><span class="p">[</span><span class="n">code</span><span class="p">][</span><span class="s1">&#39;name&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39; (&#39;</span><span class="p">)[</span><span class="mi">0</span><span class="p">],</span>
<span class="n">get_territory_name</span><span class="p">(</span><span class="n">code</span><span class="p">)</span> <span class="ow">or</span> <span class="s1">&#39;&#39;</span><span class="p">,</span>
<span class="n">languages</span><span class="p">[</span><span class="n">code</span><span class="p">]</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;english_name&#39;</span><span class="p">)</span> <span class="ow">or</span> <span class="s1">&#39;&#39;</span><span class="p">,</span>
<span class="n">UnicodeEscape</span><span class="p">(</span><span class="n">flag</span><span class="p">),</span>
<span class="p">)</span>
<span class="n">language_codes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">item</span><span class="p">)</span>
<span class="n">language_codes</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">language_codes</span><span class="p">)</span>
<span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">languages_file</span><span class="p">,</span> <span class="s1">&#39;w&#39;</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="s1">&#39;utf-8&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">new_file</span><span class="p">:</span>
<span class="n">file_content</span> <span class="o">=</span> <span class="s2">&quot;</span><span class="si">{file_headers}</span><span class="s2"> </span><span class="si">{language_codes}</span><span class="s2">,</span><span class="se">\n</span><span class="s2">)</span><span class="se">\n</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span>
<span class="c1"># fmt: off</span>
<span class="n">file_headers</span> <span class="o">=</span> <span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">file_headers</span><span class="p">),</span>
<span class="n">language_codes</span> <span class="o">=</span> <span class="n">pformat</span><span class="p">(</span><span class="n">language_codes</span><span class="p">,</span> <span class="n">indent</span><span class="o">=</span><span class="mi">4</span><span class="p">)[</span><span class="mi">1</span><span class="p">:</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>
<span class="c1"># fmt: on</span>
<span class="p">)</span>
<span class="n">new_file</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">file_content</span><span class="p">)</span>
<span class="n">new_file</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
<span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s2">&quot;__main__&quot;</span><span class="p">:</span>
<span class="n">load_engines</span><span class="p">(</span><span class="n">settings</span><span class="p">[</span><span class="s1">&#39;engines&#39;</span><span class="p">])</span>
<span class="n">_engines_languages</span> <span class="o">=</span> <span class="n">fetch_supported_languages</span><span class="p">()</span>
<span class="n">_all_languages</span> <span class="o">=</span> <span class="n">join_language_lists</span><span class="p">(</span><span class="n">_engines_languages</span><span class="p">)</span>
<span class="n">_filtered_languages</span> <span class="o">=</span> <span class="n">filter_language_list</span><span class="p">(</span><span class="n">_all_languages</span><span class="p">)</span>
<span class="n">write_languages_file</span><span class="p">(</span><span class="n">_filtered_languages</span><span class="p">)</span>
</pre></div>
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<p class="caption" role="heading"><span class="caption-text">Contents</span></p>
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.. _adminapi:
==================
Administration API
==================
Get configuration data
======================
.. code:: http
GET /config HTTP/1.1
Sample response
---------------
.. code:: json
{
"autocomplete": "",
"categories": [
"map",
"it",
"images",
],
"default_locale": "",
"default_theme": "simple",
"engines": [
{
"categories": [
"map"
],
"enabled": true,
"name": "openstreetmap",
"shortcut": "osm"
},
{
"categories": [
"it"
],
"enabled": true,
"name": "arch linux wiki",
"shortcut": "al"
},
{
"categories": [
"images"
],
"enabled": true,
"name": "google images",
"shortcut": "goi"
},
{
"categories": [
"it"
],
"enabled": false,
"name": "bitbucket",
"shortcut": "bb"
},
],
"instance_name": "searx",
"locales": {
"de": "Deutsch (German)",
"en": "English",
"eo": "Esperanto (Esperanto)",
},
"plugins": [
{
"enabled": true,
"name": "HTTPS rewrite"
},
{
"enabled": false,
"name": "Vim-like hotkeys"
}
],
"safe_search": 0
}
Embed search bar
================
The search bar can be embedded into websites. Just paste the example into the
HTML of the site. URL of the SearXNG instance and values are customizable.
.. code:: html
<form method="post" action="https://example.org/">
<!-- search --> <input type="text" name="q" />
<!-- categories --> <input type="hidden" name="categories" value="general,social media" />
<!-- language --> <input type="hidden" name="lang" value="all" />
<!-- locale --> <input type="hidden" name="locale" value="en" />
<!-- date filter --> <input type="hidden" name="time_range" value="month" />
</form>

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.. _architecture:
============
Architecture
============
.. sidebar:: Further reading
- Reverse Proxy: :ref:`Apache <apache searxng site>` & :ref:`nginx <nginx
searxng site>`
- Filtron: :ref:`searxng filtron`
- Morty: :ref:`searxng morty`
- uWSGI: :ref:`searxng uwsgi`
- SearXNG: :ref:`installation basic`
Herein you will find some hints and suggestions about typical architectures of
SearXNG infrastructures.
We start with a contribution from :pull-searx:`@dalf <1776#issuecomment-567917320>`.
It shows a *reference* setup for public SearXNG instances which can build up and
maintained by the scripts from our :ref:`toolboxing`.
.. _arch public:
.. kernel-figure:: arch_public.dot
:alt: arch_public.dot
Reference architecture of a public SearXNG setup.

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.. _buildhosts:
==========
Buildhosts
==========
.. sidebar:: This article needs some work
If you have any contribution send us your :pull:`PR <../pulls>`, see
:ref:`how to contribute`.
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
To get best results from build, its recommend to install additional packages
on build hosts (see :ref:`searx.sh`).::
sudo -H ./utils/searx.sh install buildhost
This will install packages needed by searx:
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START distro-packages
:end-before: END distro-packages
and packages needed to build docuemtation and run tests:
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START build-packages
:end-before: END build-packages
.. _docs build:
Build docs
==========
.. _Graphviz: https://graphviz.gitlab.io
.. _ImageMagick: https://www.imagemagick.org
.. _XeTeX: https://tug.org/xetex/
.. _dvisvgm: https://dvisvgm.de/
.. sidebar:: Sphinx build needs
- ImageMagick_
- Graphviz_
- XeTeX_
- dvisvgm_
Most of the sphinx requirements are installed from :origin:`setup.py` and the
docs can be build from scratch with ``make docs.html``. For better math and
image processing additional packages are needed. The XeTeX_ needed not only for
PDF creation, its also needed for :ref:`math` when HTML output is build.
To be able to do :ref:`sphinx:math-support` without CDNs, the math are rendered
as images (``sphinx.ext.imgmath`` extension).
Here is the extract from the :origin:`docs/conf.py` file, setting math renderer
to ``imgmath``:
.. literalinclude:: ../conf.py
:language: python
:start-after: # sphinx.ext.imgmath setup
:end-before: # sphinx.ext.imgmath setup END
If your docs build (``make docs.html``) shows warnings like this::
WARNING: dot(1) not found, for better output quality install \
graphviz from https://www.graphviz.org
..
WARNING: LaTeX command 'latex' cannot be run (needed for math \
display), check the imgmath_latex setting
you need to install additional packages on your build host, to get better HTML
output.
.. tabs::
.. group-tab:: Ubuntu / debian
.. code-block:: sh
$ sudo apt install graphviz imagemagick texlive-xetex librsvg2-bin
.. group-tab:: Arch Linux
.. code-block:: sh
$ sudo pacman -S graphviz imagemagick texlive-bin extra/librsvg
.. group-tab:: Fedora / RHEL
.. code-block:: sh
$ sudo dnf install graphviz graphviz-gd texlive-xetex-bin librsvg2-tools
For PDF output you also need:
.. tabs::
.. group-tab:: Ubuntu / debian
.. code:: sh
$ sudo apt texlive-latex-recommended texlive-extra-utils ttf-dejavu
.. group-tab:: Arch Linux
.. code:: sh
$ sudo pacman -S texlive-core texlive-latexextra ttf-dejavu
.. group-tab:: Fedora / RHEL
.. code:: sh
$ sudo dnf install \
texlive-collection-fontsrecommended texlive-collection-latex \
dejavu-sans-fonts dejavu-serif-fonts dejavu-sans-mono-fonts \
ImageMagick
.. _sh lint:
Lint shell scripts
==================
.. _ShellCheck: https://github.com/koalaman/shellcheck
To lint shell scripts, we use ShellCheck_ - A shell script static analysis tool.
.. SNIP sh lint requirements
.. tabs::
.. group-tab:: Ubuntu / debian
.. code-block:: sh
$ sudo apt install shellcheck
.. group-tab:: Arch Linux
.. code-block:: sh
$ sudo pacman -S shellcheck
.. group-tab:: Fedora / RHEL
.. code-block:: sh
$ sudo dnf install ShellCheck
.. SNAP sh lint requirements

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.. _engine command:
====================
Command Line Engines
====================
.. sidebar:: info
- :origin:`command.py <searx/engines/command.py>`
- :ref:`offline engines`
With *command engines* administrators can run engines to integrate arbitrary
shell commands.
When creating and enabling a ``command`` engine on a public instance, you must
be careful to avoid leaking private data. The easiest solution is to limit the
access by setting ``tokens`` as described in section :ref:`private engines`.
The engine base is flexible. Only your imagination can limit the power of this
engine (and maybe security concerns). The following options are available:
``command``:
A comma separated list of the elements of the command. A special token
``{{QUERY}}`` tells where to put the search terms of the user. Example:
.. code:: yaml
['ls', '-l', '-h', '{{QUERY}}']
``delimiter``:
A mapping containing a delimiter ``char`` and the *titles* of each element in
``keys``.
``parse_regex``:
A dict containing the regular expressions for each result key.
``query_type``:
The expected type of user search terms. Possible values: ``path`` and
``enum``.
``path``:
Checks if the user provided path is inside the working directory. If not,
the query is not executed.
``enum``:
Is a list of allowed search terms. If the user submits something which is
not included in the list, the query returns an error.
``query_enum``:
A list containing allowed search terms if ``query_type`` is set to ``enum``.
``working_dir``:
The directory where the command has to be executed. Default: ``./``
``result_separator``:
The character that separates results. Default: ``\n``
The example engine below can be used to find files with a specific name in the
configured working directory:
.. code:: yaml
- name: find
engine: command
command: ['find', '.', '-name', '{{QUERY}}']
query_type: path
shortcut: fnd
delimiter:
chars: ' '
keys: ['line']
Acknowledgment
==============
This development was sponsored by `Search and Discovery Fund
<https://nlnet.nl/discovery>`_ of `NLnet Foundation <https://nlnet.nl/>`_.

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.. _configured engines:
==================
Configured Engines
==================
.. sidebar:: Further reading ..
- :ref:`engines-dev`
- :ref:`settings engine`
Explanation of the :ref:`general engine configuration` shown in the table
:ref:`configured engines`.
.. jinja:: searx
SearXNG supports {{engines | length}} search engines (of which {{enabled_engine_count}} are enabled by default).
{% for category, engines in categories_as_tabs.items() %}
{{category}} search engines
---------------------------------------
{% for group, engines in engines | group_engines_in_tab %}
{% if loop.length > 1 %}
{{group}}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
{% endif %}
.. flat-table::
:header-rows: 2
:stub-columns: 1
* - :cspan:`5` Engines configured by default (in :ref:`settings.yml <engine settings>`)
- :cspan:`3` :ref:`Supported features <engine file>`
* - Name
- Shortcut
- Module
- Disabled
- Timeout
- Weight
- Paging
- Language
- Safe search
- Time range
{% for mod in engines %}
* - `{{mod.name}} <{{mod.about and mod.about.website}}>`_
- ``!{{mod.shortcut}}``
- {%- if 'searx.engines.' + mod.__name__ in documented_modules %}
:py:mod:`~searx.engines.{{mod.__name__}}`
{%- else %}
:origin:`{{mod.__name__}} <searx/engines/{{mod.__name__}}.py>`
{%- endif %}
- {{(mod.disabled and "y") or ""}}
{%- if mod.about and mod.about.language %}
({{mod.about.language | upper}})
{%- endif %}
- {{mod.timeout}}
- {{mod.weight or 1 }}
{% if mod.engine_type == 'online' %}
- {{(mod.paging and "y") or ""}}
- {{(mod.language_support and "y") or ""}}
- {{(mod.safesearch and "y") or ""}}
- {{(mod.time_range_support and "y") or ""}}
{% else %}
- :cspan:`3` not applicable ({{mod.engine_type}})
{% endif %}
{% endfor %}
{% endfor %}
{% endfor %}

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.. _engines and settings:
==================
Engines & Settings
==================
.. sidebar:: Further reading ..
- :ref:`settings engine`
- :ref:`engine settings` & :ref:`engine file`
.. toctree::
:maxdepth: 1
settings
configured_engines
private-engines
recoll
sql-engines
nosql-engines
search-indexer-engines
command-line-engines
searx.engines.xpath

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===============
NoSQL databases
===============
.. sidebar:: further read
- `NoSQL databases <https://en.wikipedia.org/wiki/NoSQL>`_
- `redis.io <https://redis.io/>`_
- `MongoDB <https://www.mongodb.com>`_
The following `NoSQL databases`_ are supported:
- :ref:`engine redis_server`
- :ref:`engine mongodb`
All of the engines above are just commented out in the :origin:`settings.yml
<searx/settings.yml>`, as you have to set various options and install
dependencies before using them.
By default, the engines use the ``key-value`` template for displaying results /
see :origin:`simple <searx/templates/simple/result_templates/key-value.html>`
theme. If you are not satisfied with the original result layout, you can use
your own template, set ``result_template`` attribute to ``{template_name}`` and
place the templates at::
searx/templates/{theme_name}/result_templates/{template_name}
Futhermore, if you do not wish to expose these engines on a public instance, you
can still add them and limit the access by setting ``tokens`` as described in
section :ref:`private engines`.
Configure the engines
=====================
`NoSQL databases`_ are used for storing arbitrary data without first defining
their structure.
Extra Dependencies
------------------
For using :ref:`engine redis_server` or :ref:`engine mongodb` you need to
install additional packages in Python's Virtual Environment of your SearXNG
instance. To switch into the environment (:ref:`searx-src`) you can use
:ref:`searx.sh`::
$ sudo utils/searx.sh shell
(searx-pyenv)$ pip install ...
.. _engine redis_server:
Redis Server
------------
.. _redis: https://github.com/andymccurdy/redis-py#installation
.. sidebar:: info
- ``pip install`` redis_
- redis.io_
- :origin:`redis_server.py <searx/engines/redis_server.py>`
Redis is an open source (BSD licensed), in-memory data structure (key value
based) store. Before configuring the ``redis_server`` engine, you must install
the dependency redis_.
Select a database to search in and set its index in the option ``db``. You can
either look for exact matches or use partial keywords to find what you are
looking for by configuring ``exact_match_only``. You find an example
configuration below:
.. code:: yaml
# Required dependency: redis
- name: myredis
shortcut : rds
engine: redis_server
exact_match_only: false
host: '127.0.0.1'
port: 6379
enable_http: true
password: ''
db: 0
.. _engine mongodb:
MongoDB
-------
.. _pymongo: https://github.com/mongodb/mongo-python-driver#installation
.. sidebar:: info
- ``pip install`` pymongo_
- MongoDB_
- :origin:`mongodb.py <searx/engines/mongodb.py>`
MongoDB_ is a document based database program that handles JSON like data.
Before configuring the ``mongodb`` engine, you must install the dependency
redis_.
In order to query MongoDB_, you have to select a ``database`` and a
``collection``. Furthermore, you have to select a ``key`` that is going to be
searched. MongoDB_ also supports the option ``exact_match_only``, so configure
it as you wish. Below is an example configuration for using a MongoDB
collection:
.. code:: yaml
# MongoDB engine
# Required dependency: pymongo
- name: mymongo
engine: mongodb
shortcut: md
exact_match_only: false
host: '127.0.0.1'
port: 27017
enable_http: true
results_per_page: 20
database: 'business'
collection: 'reviews' # name of the db collection
key: 'name' # key in the collection to search for
Acknowledgment
==============
This development was sponsored by `Search and Discovery Fund
<https://nlnet.nl/discovery>`_ of `NLnet Foundation <https://nlnet.nl/>`_.

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.. _private engines:
============================
Private Engines (``tokens``)
============================
Administrators might find themselves wanting to limit access to some of the
enabled engines on their instances. It might be because they do not want to
expose some private information through :ref:`offline engines`. Or they would
rather share engines only with their trusted friends or colleagues.
To solve this issue the concept of *private engines* exists.
A new option was added to engines named `tokens`. It expects a list of
strings. If the user making a request presents one of the tokens of an engine,
they can access information about the engine and make search requests.
Example configuration to restrict access to the Arch Linux Wiki engine:
.. code:: yaml
- name: arch linux wiki
engine: archlinux
shortcut: al
tokens: [ 'my-secret-token' ]
Unless a user has configured the right token, the engine is going
to be hidden from him/her. It is not going to be included in the
list of engines on the Preferences page and in the output of
`/config` REST API call.
Tokens can be added to one's configuration on the Preferences page
under "Engine tokens". The input expects a comma separated list of
strings.
The distribution of the tokens from the administrator to the users
is not carved in stone. As providing access to such engines
implies that the admin knows and trusts the user, we do not see
necessary to come up with a strict process. Instead,
we would like to add guidelines to the documentation of the feature.
Acknowledgment
==============
This development was sponsored by `Search and Discovery Fund
<https://nlnet.nl/discovery>`_ of `NLnet Foundation <https://nlnet.nl/>`_.

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.. _engine recoll:
=============
Recoll Engine
=============
.. sidebar:: info
- `Recoll <https://www.lesbonscomptes.com/recoll/>`_
- `recoll-webui <https://framagit.org/medoc92/recollwebui.git>`_
- :origin:`searx/engines/recoll.py`
Recoll_ is a desktop full-text search tool based on Xapian. By itself Recoll_
does not offer WEB or API access, this can be achieved using recoll-webui_
Configuration
=============
You must configure the following settings:
``base_url``:
Location where recoll-webui can be reached.
``mount_prefix``:
Location where the file hierarchy is mounted on your *local* filesystem.
``dl_prefix``:
Location where the file hierarchy as indexed by recoll can be reached.
``search_dir``:
Part of the indexed file hierarchy to be search, if empty the full domain is
searched.
Example
=======
Scenario:
#. Recoll indexes a local filesystem mounted in ``/export/documents/reference``,
#. the Recoll search inteface can be reached at https://recoll.example.org/ and
#. the contents of this filesystem can be reached though https://download.example.org/reference
.. code:: yaml
base_url: https://recoll.example.org/
mount_prefix: /export/documents
dl_prefix: https://download.example.org
search_dir: ''

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====================
Local Search Engines
====================
.. sidebar:: further read
- `Comparison to alternatives
<https://docs.meilisearch.com/learn/what_is_meilisearch/comparison_to_alternatives.html>`_
Administrators might find themselves wanting to integrate locally running search
engines. The following ones are supported for now:
* `Elasticsearch`_
* `Meilisearch`_
* `Solr`_
Each search engine is powerful, capable of full-text search. All of the engines
above are added to ``settings.yml`` just commented out, as you have to
``base_url`` for all them.
Please note that if you are not using HTTPS to access these engines, you have to enable
HTTP requests by setting ``enable_http`` to ``True``.
Futhermore, if you do not want to expose these engines on a public instance, you
can still add them and limit the access by setting ``tokens`` as described in
section :ref:`private engines`.
.. _engine meilisearch:
MeiliSearch
===========
.. sidebar:: info
- :origin:`meilisearch.py <searx/engines/meilisearch.py>`
- `MeiliSearch <https://www.meilisearch.com>`_
- `MeiliSearch Documentation <https://docs.meilisearch.com/>`_
- `Install MeiliSearch
<https://docs.meilisearch.com/learn/getting_started/installation.html>`_
MeiliSearch_ is aimed at individuals and small companies. It is designed for
small-scale (less than 10 million documents) data collections. E.g. it is great
for storing web pages you have visited and searching in the contents later.
The engine supports faceted search, so you can search in a subset of documents
of the collection. Furthermore, you can search in MeiliSearch_ instances that
require authentication by setting ``auth_token``.
Here is a simple example to query a Meilisearch instance:
.. code:: yaml
- name: meilisearch
engine: meilisearch
shortcut: mes
base_url: http://localhost:7700
index: my-index
enable_http: true
.. _engine elasticsearch:
Elasticsearch
=============
.. sidebar:: info
- :origin:`elasticsearch.py <searx/engines/elasticsearch.py>`
- `Elasticsearch <https://www.elastic.co/elasticsearch/>`_
- `Elasticsearch Guide
<https://www.elastic.co/guide/en/elasticsearch/reference/current/index.html>`_
- `Install Elasticsearch
<https://www.elastic.co/guide/en/elasticsearch/reference/current/install-elasticsearch.html>`_
Elasticsearch_ supports numerous ways to query the data it is storing. At the
moment the engine supports the most popular search methods (``query_type``):
- ``match``,
- ``simple_query_string``,
- ``term`` and
- ``terms``.
If none of the methods fit your use case, you can select ``custom`` query type
and provide the JSON payload to submit to Elasticsearch in
``custom_query_json``.
The following is an example configuration for an Elasticsearch_ instance with
authentication configured to read from ``my-index`` index.
.. code:: yaml
- name: elasticsearch
shortcut: es
engine: elasticsearch
base_url: http://localhost:9200
username: elastic
password: changeme
index: my-index
query_type: match
# custom_query_json: '{ ... }'
enable_http: true
.. _engine solr:
Solr
====
.. sidebar:: info
- :origin:`solr.py <searx/engines/solr.py>`
- `Solr <https://solr.apache.org>`_
- `Solr Resources <https://solr.apache.org/resources.html>`_
- `Install Solr <https://solr.apache.org/guide/installing-solr.html>`_
Solr_ is a popular search engine based on Lucene, just like Elasticsearch_. But
instead of searching in indices, you can search in collections.
This is an example configuration for searching in the collection
``my-collection`` and get the results in ascending order.
.. code:: yaml
- name: solr
engine: solr
shortcut: slr
base_url: http://localhost:8983
collection: my-collection
sort: asc
enable_http: true
Acknowledgment
==============
This development was sponsored by `Search and Discovery Fund
<https://nlnet.nl/discovery>`_ of `NLnet Foundation <https://nlnet.nl/>`_.

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.. _xpath engine:
============
XPath Engine
============
.. automodule:: searx.engines.xpath
:members:

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.. _settings.yml:
================
``settings.yml``
================
This page describe the options possibilities of the :origin:`searx/settings.yml`
file.
.. sidebar:: Further reading ..
- :ref:`use_default_settings.yml`
- :ref:`search API`
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
.. _settings location:
settings.yml location
=====================
The initial ``settings.yml`` we be load from these locations:
1. the full path specified in the ``SEARXNG_SETTINGS_PATH`` environment variable.
2. ``/etc/searxng/settings.yml``
If these files don't exist (or are empty or can't be read), SearXNG uses the
:origin:`searx/settings.yml` file. Read :ref:`settings use_default_settings` to
see how you can simplify your *user defined* ``settings.yml``.
.. _settings global:
Global Settings
===============
.. _settings brand:
``brand:``
----------
.. code:: yaml
brand:
issue_url: https://github.com/searxng/searxng/issues
docs_url: https://docs.searxng.org
public_instances: https://searx.space
wiki_url: https://github.com/searxng/searxng/wiki
``issue_url`` :
If you host your own issue tracker change this URL.
``docs_url`` :
If you host your own documentation change this URL.
``public_instances`` :
If you host your own https://searx.space change this URL.
``wiki_url`` :
Link to your wiki (or ``false``)
.. _settings general:
``general:``
------------
.. code:: yaml
general:
debug: false # Debug mode, only for development
instance_name: "SearXNG" # displayed name
contact_url: false # mailto:contact@example.com
``debug`` : ``$SEARXNG_DEBUG``
Allow a more detailed log if you run SearXNG directly. Display *detailed* error
messages in the browser too, so this must be deactivated in production.
``contact_url``:
Contact ``mailto:`` address or WEB form.
``enable_metrics``:
Enabled by default. Record various anonymous metrics availabled at ``/stats``,
``/stats/errors`` and ``/preferences``.
.. _settings search:
``search:``
-----------
.. code:: yaml
search:
safe_search: 0
autocomplete: ""
default_lang: ""
ban_time_on_fail: 5
max_ban_time_on_fail: 120
formats:
- html
``safe_search``:
Filter results.
- ``0``: None
- ``1``: Moderate
- ``2``: Strict
``autocomplete``:
Existing autocomplete backends, leave blank to turn it off.
- ``dbpedia``
- ``duckduckgo``
- ``google``
- ``startpage``
- ``swisscows``
- ``qwant``
- ``wikipedia``
``default_lang``:
Default search language - leave blank to detect from browser information or
use codes from :origin:`searx/languages.py`.
``languages``:
List of available languages - leave unset to use all codes from
:origin:`searx/languages.py`. Otherwise list codes of available languages.
The ``all`` value is shown as the ``Default language`` in the user interface
(in most cases, it is meant to send the query without a language parameter ;
in some cases, it means the English language) Example:
.. code:: yaml
languages:
- all
- en
- en-US
- de
- it-IT
- fr
- fr-BE
``ban_time_on_fail``:
Ban time in seconds after engine errors.
``max_ban_time_on_fail``:
Max ban time in seconds after engine errors.
``formats``:
Result formats available from web, remove format to deny access (use lower
case).
- ``html``
- ``csv``
- ``json``
- ``rss``
.. _settings server:
``server:``
-----------
.. code:: yaml
server:
base_url: false # set custom base_url (or false)
port: 8888
bind_address: "127.0.0.1" # address to listen on
secret_key: "ultrasecretkey" # change this!
limiter: false
image_proxy: false # proxying image results through SearXNG
default_http_headers:
X-Content-Type-Options : nosniff
X-XSS-Protection : 1; mode=block
X-Download-Options : noopen
X-Robots-Tag : noindex, nofollow
Referrer-Policy : no-referrer
.. sidebar:: buildenv
Changing a value tagged by :ref:`buildenv <make buildenv>`, needs to
rebuild instance's environment :ref:`utils/brand.env <make buildenv>`.
``base_url`` : :ref:`buildenv SEARXNG_URL <make buildenv>`
The base URL where SearXNG is deployed. Used to create correct inbound links.
If you change the value, don't forget to rebuild instance's environment
(:ref:`utils/brand.env <make buildenv>`)
``port`` & ``bind_address``: :ref:`buildenv SEARXNG_PORT & SEARXNG_BIND_ADDRESS <make buildenv>`
Port number and *bind address* of the SearXNG web application if you run it
directly using ``python searx/webapp.py``. Doesn't apply to SearXNG running on
Apache or Nginx.
``secret_key`` : ``$SEARXNG_SECRET``
Used for cryptography purpose.
``limiter`` :
Rate limit the number of request on the instance, block some bots. The
:ref:`limiter plugin` requires a :ref:`settings redis` database.
``image_proxy`` :
Allow your instance of SearXNG of being able to proxy images. Uses memory space.
.. _HTTP headers: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers
``default_http_headers`` :
Set additional HTTP headers, see `#755 <https://github.com/searx/searx/issues/715>`__
.. _settings ui:
``ui:``
-------
.. code:: yaml
ui:
default_locale: ""
query_in_title: false
default_theme: simple
theme_args:
simple_style: auto
``default_locale`` :
SearXNG interface language. If blank, the locale is detected by using the
browser language. If it doesn't work, or you are deploying a language
specific instance of searx, a locale can be defined using an ISO language
code, like ``fr``, ``en``, ``de``.
``default_theme`` :
Name of the theme you want to use by default on your SearXNG instance.
``theme_args.simple_style``:
Style of simple theme: ``auto``, ``light``, ``dark``
``query_in_title`` :
When true, the result page's titles contains the query it decreases the
privacy, since the browser can records the page titles.
``results_on_new_tab``:
Open result links in a new tab by default.
.. _settings redis:
``redis:``
----------
.. _Redis.from_url(url): https://redis-py.readthedocs.io/en/stable/connections.html#redis.client.Redis.from_url
A redis DB can be connected by an URL, in :py:obj:`searx.shared.redisdb` you
will find a description to test your redis connection in SerXNG. When using
sockets, don't forget to check the access rights on the socket::
ls -la /usr/local/searxng-redis/run/redis.sock
srwxrwx--- 1 searxng-redis searxng-redis ... /usr/local/searxng-redis/run/redis.sock
In this example read/write access is given to the *searxng-redis* group. To get
access rights to redis instance (the socket), your SearXNG (or even your
developer) account needs to be added to the *searxng-redis* group.
``url``
URL to connect redis database, see `Redis.from_url(url)`_ & :ref:`redis db`::
redis://[[username]:[password]]@localhost:6379/0
rediss://[[username]:[password]]@localhost:6379/0
unix://[[username]:[password]]@/path/to/socket.sock?db=0
.. admonition:: Tip for developers
To set up a local redis instance using sockets simply use::
$ ./manage redis.build
$ sudo -H ./manage redis.install
$ sudo -H ./manage redis.addgrp "${USER}"
# don't forget to logout & login to get member of group
The YAML setting for such a redis instance is:
.. code:: yaml
redis:
url: unix:///usr/local/searxng-redis/run/redis.sock?db=0
.. _settings outgoing:
``outgoing:``
-------------
Communication with search engines.
.. code:: yaml
outgoing:
request_timeout: 2.0 # default timeout in seconds, can be override by engine
max_request_timeout: 10.0 # the maximum timeout in seconds
useragent_suffix: "" # informations like an email address to the administrator
pool_connections: 100 # Maximum number of allowable connections, or null
# for no limits. The default is 100.
pool_maxsize: 10 # Number of allowable keep-alive connections, or null
# to always allow. The default is 10.
enable_http2: true # See https://www.python-httpx.org/http2/
# uncomment below section if you want to use a proxy
# proxies:
# all://:
# - http://proxy1:8080
# - http://proxy2:8080
# uncomment below section only if you have more than one network interface
# which can be the source of outgoing search requests
# source_ips:
# - 1.1.1.1
# - 1.1.1.2
# - fe80::/126
``request_timeout`` :
Global timeout of the requests made to others engines in seconds. A bigger
timeout will allow to wait for answers from slow engines, but in consequence
will slow SearXNG reactivity (the result page may take the time specified in the
timeout to load). Can be override by :ref:`settings engine`
``useragent_suffix`` :
Suffix to the user-agent SearXNG uses to send requests to others engines. If an
engine wish to block you, a contact info here may be useful to avoid that.
``keepalive_expiry`` :
Number of seconds to keep a connection in the pool. By default 5.0 seconds.
.. _httpx proxies: https://www.python-httpx.org/advanced/#http-proxying
``proxies`` :
Define one or more proxies you wish to use, see `httpx proxies`_.
If there are more than one proxy for one protocol (http, https),
requests to the engines are distributed in a round-robin fashion.
``source_ips`` :
If you use multiple network interfaces, define from which IP the requests must
be made. Example:
* ``0.0.0.0`` any local IPv4 address.
* ``::`` any local IPv6 address.
* ``192.168.0.1``
* ``[ 192.168.0.1, 192.168.0.2 ]`` these two specific IP addresses
* ``fe80::60a2:1691:e5a2:ee1f``
* ``fe80::60a2:1691:e5a2:ee1f/126`` all IP addresses in this network.
* ``[ 192.168.0.1, fe80::/126 ]``
``retries`` :
Number of retry in case of an HTTP error. On each retry, SearXNG uses an
different proxy and source ip.
``retry_on_http_error`` :
Retry request on some HTTP status code.
Example:
* ``true`` : on HTTP status code between 400 and 599.
* ``403`` : on HTTP status code 403.
* ``[403, 429]``: on HTTP status code 403 and 429.
``enable_http2`` :
Enable by default. Set to ``false`` to disable HTTP/2.
``max_redirects`` :
30 by default. Maximum redirect before it is an error.
``categories_as_tabs:``
-----------------------
A list of the categories that are displayed as tabs in the user interface.
Categories not listed here can still be searched with the :ref:`search-syntax`.
.. code-block:: yaml
categories_as_tabs:
general:
images:
videos:
news:
map:
music:
it:
science:
files:
social media:
.. _settings engine:
Engine settings
===============
.. sidebar:: Further reading ..
- :ref:`configured engines`
- :ref:`engines-dev`
In the code example below a *full fledged* example of a YAML setup from a dummy
engine is shown. Most of the options have a default value or even are optional.
.. code:: yaml
- name: example engine
engine: example
shortcut: demo
base_url: 'https://{language}.example.com/'
categories: general
timeout: 3.0
api_key: 'apikey'
disabled: false
language: en_US
tokens: [ 'my-secret-token' ]
weigth: 1
display_error_messages: true
about:
website: https://example.com
wikidata_id: Q306656
official_api_documentation: https://example.com/api-doc
use_official_api: true
require_api_key: true
results: HTML
enable_http: false
enable_http2: false
retries: 1
retry_on_http_error: true # or 403 or [404, 429]
max_connections: 100
max_keepalive_connections: 10
keepalive_expiry: 5.0
proxies:
http:
- http://proxy1:8080
- http://proxy2:8080
https:
- http://proxy1:8080
- http://proxy2:8080
- socks5://user:password@proxy3:1080
- socks5h://user:password@proxy4:1080
``name`` :
Name that will be used across SearXNG to define this engine. In settings, on
the result page...
``engine`` :
Name of the python file used to handle requests and responses to and from this
search engine.
``shortcut`` :
Code used to execute bang requests (in this case using ``!bi``)
``base_url`` : optional
Part of the URL that should be stable across every request. Can be useful to
use multiple sites using only one engine, or updating the site URL without
touching at the code.
``categories`` : optional
Define in which categories this engine will be active. Most of the time, it is
defined in the code of the engine, but in a few cases it is useful, like when
describing multiple search engine using the same code.
``timeout`` : optional
Timeout of the search with the current search engine. **Be careful, it will
modify the global timeout of SearXNG.**
``api_key`` : optional
In a few cases, using an API needs the use of a secret key. How to obtain them
is described in the file.
``disabled`` : optional
To disable by default the engine, but not deleting it. It will allow the user
to manually activate it in the settings.
``language`` : optional
If you want to use another language for a specific engine, you can define it
by using the full ISO code of language and country, like ``fr_FR``, ``en_US``,
``de_DE``.
``tokens`` : optional
A list of secret tokens to make this engine *private*, more details see
:ref:`private engines`.
``weigth`` : default ``1``
Weighting of the results of this engine.
``display_error_messages`` : default ``true``
When an engine returns an error, the message is displayed on the user interface.
``network`` : optional
Use the network configuration from another engine.
In addition, there are two default networks:
- ``ipv4`` set ``local_addresses`` to ``0.0.0.0`` (use only IPv4 local addresses)
- ``ipv6`` set ``local_addresses`` to ``::`` (use only IPv6 local addresses)
.. note::
A few more options are possible, but they are pretty specific to some
engines, and so won't be described here.
Example: Multilingual Search
----------------------------
SearXNG does not support true multilingual search. You have to use the language
prefix in your search query when searching in a different language.
But there is a workaround: By adding a new search engine with a different
language, SearXNG will search in your default and other language.
Example configuration in settings.yml for a German and English speaker:
.. code-block:: yaml
search:
default_lang : "de"
...
engines:
- name : google english
engine : google
language : en
...
When searching, the default google engine will return German results and
"google english" will return English results.
.. _settings use_default_settings:
use_default_settings
====================
.. sidebar:: ``use_default_settings: true``
- :ref:`settings location`
- :ref:`use_default_settings.yml`
- :origin:`/etc/searxng/settings.yml <utils/templates/etc/searxng/settings.yml>`
The user defined ``settings.yml`` is loaded from the :ref:`settings location`
and can relied on the default configuration :origin:`searx/settings.yml` using:
``use_default_settings: true``
``server:``
In the following example, the actual settings are the default settings defined
in :origin:`searx/settings.yml` with the exception of the ``secret_key`` and
the ``bind_address``:
.. code-block:: yaml
use_default_settings: true
server:
secret_key: "ultrasecretkey" # change this!
bind_address: "0.0.0.0"
``engines:``
With ``use_default_settings: true``, each settings can be override in a
similar way, the ``engines`` section is merged according to the engine
``name``. In this example, SearXNG will load all the engine and the arch linux
wiki engine has a :ref:`token <private engines>`:
.. code-block:: yaml
use_default_settings: true
server:
secret_key: "ultrasecretkey" # change this!
engines:
- name: arch linux wiki
tokens: ['$ecretValue']
``engines:`` / ``remove:``
It is possible to remove some engines from the default settings. The following
example is similar to the above one, but SearXNG doesn't load the the google
engine:
.. code-block:: yaml
use_default_settings:
engines:
remove:
- google
server:
secret_key: "ultrasecretkey" # change this!
engines:
- name: arch linux wiki
tokens: ['$ecretValue']
``engines:`` / ``keep_only:``
As an alternative, it is possible to specify the engines to keep. In the
following example, SearXNG has only two engines:
.. code-block:: yaml
use_default_settings:
engines:
keep_only:
- google
- duckduckgo
server:
secret_key: "ultrasecretkey" # change this!
engines:
- name: google
tokens: ['$ecretValue']
- name: duckduckgo
tokens: ['$ecretValue']

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.. _sql engines:
===========
SQL Engines
===========
.. sidebar:: further read
- `SQLite <https://www.sqlite.org/index.html>`_
- `PostgreSQL <https://www.postgresql.org>`_
- `MySQL <https://www.mysql.com>`_
With the *SQL engines* you can bind SQL databases into SearXNG. The following
Relational Database Management System (RDBMS) are supported:
- :ref:`engine sqlite`
- :ref:`engine postgresql`
- :ref:`engine mysql_server`
All of the engines above are just commented out in the :origin:`settings.yml
<searx/settings.yml>`, as you have to set the required attributes for the
engines, e.g. ``database:`` ...
.. code:: yaml
- name: ...
engine: {sqlite|postgresql|mysql_server}
database: ...
result_template: {template_name}
query_str: ...
By default, the engines use the ``key-value`` template for displaying results /
see :origin:`simple <searx/templates/simple/result_templates/key-value.html>`
theme. If you are not satisfied with the original result layout, you can use
your own template, set ``result_template`` attribute to ``{template_name}`` and
place the templates at::
searx/templates/{theme_name}/result_templates/{template_name}
If you do not wish to expose these engines on a public instance, you can still
add them and limit the access by setting ``tokens`` as described in section
:ref:`private engines`.
Configure the engines
=====================
The configuration of the new database engines are similar. You must put a valid
SQL-SELECT query in ``query_str``. At the moment you can only bind at most one
parameter in your query. By setting the attribute ``limit`` you can define how
many results you want from the SQL server. Basically, it is the same as the
``LIMIT`` keyword in SQL.
Please, do not include ``LIMIT`` or ``OFFSET`` in your SQL query as the engines
rely on these keywords during paging. If you want to configure the number of
returned results use the option ``limit``.
.. _engine sqlite:
SQLite
------
.. sidebar:: info
- :origin:`sqlite.py <searx/engines/sqlite.py>`
.. _MediathekView: https://mediathekview.de/
SQLite is a small, fast and reliable SQL database engine. It does not require
any extra dependency. To demonstrate the power of database engines, here is a
more complex example which reads from a MediathekView_ (DE) movie database. For
this example of the SQlite engine download the database:
- https://liste.mediathekview.de/filmliste-v2.db.bz2
and unpack into ``searx/data/filmliste-v2.db``. To search the database use e.g
Query to test: ``!mediathekview concert``
.. code:: yaml
- name: mediathekview
engine: sqlite
disabled: False
categories: general
result_template: default.html
database: searx/data/filmliste-v2.db
query_str: >-
SELECT title || ' (' || time(duration, 'unixepoch') || ')' AS title,
COALESCE( NULLIF(url_video_hd,''), NULLIF(url_video_sd,''), url_video) AS url,
description AS content
FROM film
WHERE title LIKE :wildcard OR description LIKE :wildcard
ORDER BY duration DESC
Extra Dependencies
------------------
For using :ref:`engine postgresql` or :ref:`engine mysql_server` you need to
install additional packages in Python's Virtual Environment of your SearXNG
instance. To switch into the environment (:ref:`searx-src`) you can use
:ref:`searx.sh`::
$ sudo utils/searx.sh shell
(searx-pyenv)$ pip install ...
.. _engine postgresql:
PostgreSQL
----------
.. _psycopg2: https://www.psycopg.org/install
.. sidebar:: info
- :origin:`postgresql.py <searx/engines/postgresql.py>`
- ``pip install`` psycopg2_
PostgreSQL is a powerful and robust open source database. Before configuring
the PostgreSQL engine, you must install the dependency ``psychopg2``. You can
find an example configuration below:
.. code:: yaml
- name: my_database
engine: postgresql
database: my_database
username: searxng
password: password
query_str: 'SELECT * from my_table WHERE my_column = %(query)s'
.. _engine mysql_server:
MySQL
-----
.. sidebar:: info
- :origin:`mysql_server.py <searx/engines/mysql_server.py>`
- ``pip install`` :pypi:`mysql-connector-python <mysql-connector-python>`
MySQL is said to be the most popular open source database. Before enabling MySQL
engine, you must install the package ``mysql-connector-python``.
The authentication plugin is configurable by setting ``auth_plugin`` in the
attributes. By default it is set to ``caching_sha2_password``. This is an
example configuration for quering a MySQL server:
.. code:: yaml
- name: my_database
engine: mysql_server
database: my_database
username: searxng
password: password
limit: 5
query_str: 'SELECT * from my_table WHERE my_column=%(query)s'
Acknowledgment
==============
This development was sponsored by `Search and Discovery Fund
<https://nlnet.nl/discovery>`_ of `NLnet Foundation <https://nlnet.nl/>`_.

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.. _searxng filtron:
==========================
How to protect an instance
==========================
.. tip::
To protect your instance a installation of filtron (as described here) is no
longer needed, alternatively activate the :ref:`limiter plugin` in your
``settings.yml``. Note that the :ref:`limiter plugin` requires a :ref:`Redis
<settings redis>` database.
.. sidebar:: further reading
- :ref:`filtron.sh`
- :ref:`nginx searxng site`
.. _filtron: https://github.com/searxng/filtron
SearXNG depends on external search services. To avoid the abuse of these services
it is advised to limit the number of requests processed by SearXNG.
An application firewall, filtron_ solves exactly this problem. Filtron is just
a middleware between your web server (nginx, apache, ...) and searx, we describe
such infrastructures in chapter: :ref:`architecture`.
filtron & go
============
.. _Go: https://golang.org/
.. _filtron README: https://github.com/searxng/filtron/blob/master/README.md
Filtron needs Go_ installed. If Go_ is preinstalled, filtron_ is simply
installed by ``go get`` package management (see `filtron README`_). If you use
filtron as middleware, a more isolated setup is recommended. To simplify such
an installation and the maintenance of, use our script :ref:`filtron.sh`.
.. _Sample configuration of filtron:
Sample configuration of filtron
===============================
.. sidebar:: Tooling box
- :origin:`/etc/filtron/rules.json <utils/templates/etc/filtron/rules.json>`
An example configuration can be find below. This configuration limits the access
of:
- scripts or applications (roboagent limit)
- webcrawlers (botlimit)
- IPs which send too many requests (IP limit)
- too many json, csv, etc. requests (rss/json limit)
- the same UserAgent of if too many requests (useragent limit)
.. code:: json
[
{
"name": "search request",
"filters": [
"Param:q",
"Path=^(/|/search)$"
],
"interval": "<time-interval-in-sec (int)>",
"limit": "<max-request-number-in-interval (int)>",
"subrules": [
{
"name": "missing Accept-Language",
"filters": ["!Header:Accept-Language"],
"limit": "<max-request-number-in-interval (int)>",
"stop": true,
"actions": [
{"name":"log"},
{"name": "block",
"params": {"message": "Rate limit exceeded"}}
]
},
{
"name": "suspiciously Connection=close header",
"filters": ["Header:Connection=close"],
"limit": "<max-request-number-in-interval (int)>",
"stop": true,
"actions": [
{"name":"log"},
{"name": "block",
"params": {"message": "Rate limit exceeded"}}
]
},
{
"name": "IP limit",
"interval": "<time-interval-in-sec (int)>",
"limit": "<max-request-number-in-interval (int)>",
"stop": true,
"aggregations": [
"Header:X-Forwarded-For"
],
"actions": [
{ "name": "log"},
{ "name": "block",
"params": {
"message": "Rate limit exceeded"
}
}
]
},
{
"name": "rss/json limit",
"filters": [
"Param:format=(csv|json|rss)"
],
"interval": "<time-interval-in-sec (int)>",
"limit": "<max-request-number-in-interval (int)>",
"stop": true,
"actions": [
{ "name": "log"},
{ "name": "block",
"params": {
"message": "Rate limit exceeded"
}
}
]
},
{
"name": "useragent limit",
"interval": "<time-interval-in-sec (int)>",
"limit": "<max-request-number-in-interval (int)>",
"aggregations": [
"Header:User-Agent"
],
"actions": [
{ "name": "log"},
{ "name": "block",
"params": {
"message": "Rate limit exceeded"
}
}
]
}
]
}
]
.. _filtron route request:
Route request through filtron
=============================
.. sidebar:: further reading
- :ref:`filtron.sh overview`
- :ref:`installation nginx`
- :ref:`installation apache`
Filtron can be started using the following command:
.. code:: sh
$ filtron -rules rules.json
It listens on ``127.0.0.1:4004`` and forwards filtered requests to
``127.0.0.1:8888`` by default.
Use it along with ``nginx`` with the following example configuration.
.. code:: nginx
# https://example.org/searx
location /searx {
proxy_pass http://127.0.0.1:4004/;
proxy_set_header Host $host;
proxy_set_header Connection $http_connection;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Scheme $scheme;
proxy_set_header X-Script-Name /searx;
}
location /searx/static {
/usr/local/searx/searx-src/searx/static;
}
Requests are coming from port 4004 going through filtron and then forwarded to
port 8888 where a SearXNG is being run. For a complete setup see: :ref:`nginx
searxng site`.

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===========================
Administrator documentation
===========================
.. toctree::
:maxdepth: 2
:caption: Contents
installation
installation-searxng
installation-uwsgi
installation-nginx
installation-apache
installation-docker
installation-switch2ng
update-searxng
engines/index
api
architecture
filtron
morty
plugins
buildhosts

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.. _installation apache:
===================
Install with apache
===================
.. _Apache: https://httpd.apache.org/
.. _Apache Debian:
https://cwiki.apache.org/confluence/display/HTTPD/DistrosDefaultLayout#DistrosDefaultLayout-Debian,Ubuntu(Apachehttpd2.x):
.. _README.Debian:
https://salsa.debian.org/apache-team/apache2/raw/master/debian/apache2.README.Debian
.. _Apache Arch Linux:
https://wiki.archlinux.org/index.php/Apache_HTTP_Server
.. _Apache Fedora:
https://docs.fedoraproject.org/en-US/quick-docs/getting-started-with-apache-http-server/index.html
.. _Apache directives:
https://httpd.apache.org/docs/trunk/mod/directives.html
.. _Getting Started:
https://httpd.apache.org/docs/current/en/getting-started.html
.. _Terms Used to Describe Directives:
https://httpd.apache.org/docs/current/en/mod/directive-dict.html
.. _Configuration Files:
https://httpd.apache.org/docs/current/en/configuring.html
.. _ProxyPreserveHost: https://httpd.apache.org/docs/trunk/mod/mod_proxy.html#proxypreservehost
.. _LoadModule:
https://httpd.apache.org/docs/2.4/mod/mod_so.html#loadmodule
.. _DocumentRoot:
https://httpd.apache.org/docs/trunk/mod/core.html#documentroot
.. _Location:
https://httpd.apache.org/docs/trunk/mod/core.html#location
.. _uWSGI Apache support:
https://uwsgi-docs.readthedocs.io/en/latest/Apache.html
.. _mod_proxy_uwsgi:
https://uwsgi-docs.readthedocs.io/en/latest/Apache.html#mod-proxy-uwsgi
.. sidebar:: further read
- `Apache Arch Linux`_
- `Apache Debian`_ and `README.Debian`_
- `Apache Fedora`_
- `Apache directives`_
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
----
**Install** :ref:`apache searxng site` using :ref:`filtron.sh <filtron.sh overview>`
.. code:: bash
$ sudo -H ./utils/filtron.sh apache install
**Install** :ref:`apache searxng site` using :ref:`morty.sh <morty.sh overview>`
.. code:: bash
$ sudo -H ./utils/morty.sh apache install
----
The apache HTTP server
======================
If Apache_ is not installed, install it now. If apache_ is new to you, the
`Getting Started`_, `Configuration Files`_ and `Terms Used to Describe
Directives`_ documentation gives first orientation. There is also a list of
`Apache directives`_ *to keep in the pocket*.
.. tabs::
.. group-tab:: Ubuntu / debian
.. code:: sh
sudo -H apt-get install apache2
.. group-tab:: Arch Linux
.. code:: sh
sudo -H pacman -S apache
sudo -H systemctl enable httpd
sudo -H systemctl start http
.. group-tab:: Fedora / RHEL
.. code:: sh
sudo -H dnf install httpd
sudo -H systemctl enable httpd
sudo -H systemctl start httpd
Now at http://localhost you should see any kind of *Welcome* or *Test* page.
How this default intro site is configured, depends on the linux distribution
(compare `Apache directives`_).
.. tabs::
.. group-tab:: Ubuntu / debian
.. code:: sh
less /etc/apache2/sites-enabled/000-default.conf
In this file, there is a line setting the `DocumentRoot`_ directive:
.. code:: apache
DocumentRoot /var/www/html
And the *welcome* page is the HTML file at ``/var/www/html/index.html``.
.. group-tab:: Arch Linux
.. code:: sh
less /etc/httpd/conf/httpd.conf
In this file, there is a line setting the `DocumentRoot`_ directive:
.. code:: apache
DocumentRoot "/srv/http"
<Directory "/srv/http">
Options Indexes FollowSymLinks
AllowOverride None
Require all granted
</Directory>
The *welcome* page of Arch Linux is a page showing directory located at
``DocumentRoot``. This is *directory* page is generated by the Module
`mod_autoindex <https://httpd.apache.org/docs/2.4/mod/mod_autoindex.html>`_:
.. code:: apache
LoadModule autoindex_module modules/mod_autoindex.so
...
Include conf/extra/httpd-autoindex.conf
.. group-tab:: Fedora / RHEL
.. code:: sh
less /etc/httpd/conf/httpd.conf
In this file, there is a line setting the ``DocumentRoot`` directive:
.. code:: apache
DocumentRoot "/var/www/html"
...
<Directory "/var/www">
AllowOverride None
# Allow open access:
Require all granted
</Directory>
On fresh installations, the ``/var/www`` is empty and the *default
welcome page* is shown, the configuration is located at::
less /etc/httpd/conf.d/welcome.conf
.. _apache searxng site:
Apache Reverse Proxy
====================
.. sidebar:: public to the internet?
If your SearXNG instance is public, stop here and first install :ref:`filtron
reverse proxy <filtron.sh>` and :ref:`result proxy morty <morty.sh>`, see
:ref:`installation scripts`. If already done, follow setup: *SearXNG via
filtron plus morty*.
To setup a Apache revers proxy you have to enable the *headers* and *proxy*
modules and create a `Location`_ configuration for the SearXNG site. In most
distributions you have to un-comment the lines in the main configuration file,
except in :ref:`The Debian Layout`.
.. tabs::
.. group-tab:: Ubuntu / debian
In the Apache setup, enable headers and proxy modules:
.. code:: sh
sudo -H a2enmod headers
sudo -H a2enmod proxy
sudo -H a2enmod proxy_http
In :ref:`The Debian Layout` you create a ``searxng.conf`` with the
``<Location /searx >`` directive and save this file in the *sites
available* folder at ``/etc/apache2/sites-available``. To enable the
``searxng.conf`` use :man:`a2ensite`:
.. code:: sh
sudo -H a2ensite searxng.conf
.. group-tab:: Arch Linux
In the ``/etc/httpd/conf/httpd.conf`` file, activate headers and proxy
modules (LoadModule_):
.. code:: apache
FIXME needs test
LoadModule headers_module modules/mod_headers.so
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_http_module modules/mod_proxy_http.so
.. group-tab:: Fedora / RHEL
In the ``/etc/httpd/conf/httpd.conf`` file, activate headers and proxy
modules (LoadModule_):
.. code:: apache
FIXME needs test
LoadModule headers_module modules/mod_headers.so
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_http_module modules/mod_proxy_http.so
With ProxyPreserveHost_ the incoming Host HTTP request header is passed to the
proxied host.
.. _apache searxng via filtron plus morty:
.. tabs::
.. group-tab:: SearXNG via filtron plus morty
Use this setup, if your instance is public to the internet, compare
figure: :ref:`architecture <arch public>` and :ref:`installation scripts`.
1. Configure a reverse proxy for :ref:`filtron <filtron.sh>`, listening on
*localhost 4004* (:ref:`filtron route request`):
.. code:: apache
<Location /searx >
# SetEnvIf Request_URI "/searx" dontlog
# CustomLog /dev/null combined env=dontlog
Require all granted
Order deny,allow
Deny from all
#Allow from fd00::/8 192.168.0.0/16 fe80::/10 127.0.0.0/8 ::1
Allow from all
ProxyPreserveHost On
ProxyPass http://127.0.0.1:4004
RequestHeader set X-Script-Name /searx
</Location>
2. Configure reverse proxy for :ref:`morty <searxng morty>`, listening on
*localhost 3000*
.. code:: apache
ProxyPreserveHost On
<Location /morty >
# SetEnvIf Request_URI "/morty" dontlog
# CustomLog /dev/null combined env=dontlog
Require all granted
Order deny,allow
Deny from all
#Allow from fd00::/8 192.168.0.0/16 fe80::/10 127.0.0.0/8 ::1
Allow from all
ProxyPass http://127.0.0.1:3000
RequestHeader set X-Script-Name /morty
</Location>
For a fully result proxification add :ref:`morty's <searxng morty>` **public
URL** to your :origin:`searx/settings.yml`:
.. code:: yaml
result_proxy:
# replace example.org with your server's public name
url : https://example.org/morty
key : !!binary "insert_your_morty_proxy_key_here"
server:
image_proxy : True
uWSGI support
=============
Be warned, with this setup, your instance isn't :ref:`protected <searxng
filtron>`, nevertheless it is good enough for intranet usage. In modern Linux
distributions, the `mod_proxy_uwsgi`_ is compiled into the *normal* apache
package and you need to install only the :ref:`uWSGI <searxng uwsgi>` package:
.. tabs::
.. group-tab:: Ubuntu / debian
.. code:: sh
sudo -H apt-get install uwsgi
# Ubuntu =< 18.04
sudo -H apt-get install libapache2-mod-proxy-uwsgi
.. group-tab:: Arch Linux
.. code:: sh
sudo -H pacman -S uwsgi
.. group-tab:: Fedora / RHEL
.. code:: sh
sudo -H dnf install uwsgi
The next example shows a configuration using the `uWSGI Apache support`_ via
unix sockets and `mod_proxy_uwsgi`_.
For socket communication, you have to activate ``socket =
/run/uwsgi/app/searx/socket`` and comment out the ``http = 127.0.0.1:8888``
configuration in your :ref:`uwsgi ini file <uwsgi configuration>`. If not
already exists, create a folder for the unix sockets, which can be used by the
SearXNG account (see :ref:`create searxng user`):
.. code:: bash
sudo -H mkdir -p /run/uwsgi/app/searx/
sudo -H chown -R searx:searx /run/uwsgi/app/searx/
If the server is public; to limit access to your intranet replace ``Allow from
all`` directive and replace ``192.168.0.0/16`` with your subnet IP/class.
.. tabs::
.. group-tab:: Ubuntu / debian
.. code:: apache
LoadModule headers_module /usr/lib/apache2/mod_headers.so
LoadModule proxy_module /usr/lib/apache2/modules/mod_proxy.so
LoadModule proxy_uwsgi_module /usr/lib/apache2/modules/mod_proxy_uwsgi.so
# SetEnvIf Request_URI /searx dontlog
# CustomLog /dev/null combined env=dontlog
<Location /searx>
Require all granted
Order deny,allow
Deny from all
# Allow from fd00::/8 192.168.0.0/16 fe80::/10 127.0.0.0/8 ::1
Allow from all
ProxyPreserveHost On
ProxyPass unix:/run/uwsgi/app/searx/socket|uwsgi://uwsgi-uds-searx/
</Location>
.. group-tab:: Arch Linux
.. code:: apache
FIXME needs test
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_uwsgi_module modules/mod_proxy_uwsgi.so
# SetEnvIf Request_URI /searx dontlog
# CustomLog /dev/null combined env=dontlog
<Location /searx>
Require all granted
Order deny,allow
Deny from all
# Allow from fd00::/8 192.168.0.0/16 fe80::/10 127.0.0.0/8 ::1
Allow from all
ProxyPreserveHost On
ProxyPass unix:/run/uwsgi/app/searx/socket|uwsgi://uwsgi-uds-searx/
</Location>
.. group-tab:: Fedora / RHEL
.. code:: apache
FIXME needs test
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_uwsgi_module modules/mod_proxy_uwsgi.so
<IfModule proxy_uwsgi_module>
# SetEnvIf Request_URI /searx dontlog
# CustomLog /dev/null combined env=dontlog
<Location /searx>
Require all granted
Order deny,allow
Deny from all
# Allow from fd00::/8 192.168.0.0/16 fe80::/10 127.0.0.0/8 ::1
Allow from all
ProxyPreserveHost On
ProxyPass unix:/run/uwsgi/app/searx/socket|uwsgi://uwsgi-uds-searx/
</Location>
</IfModule>
.. group-tab:: old mod_wsgi
We show this only for historical reasons, DON'T USE `mod_uwsgi
<https://uwsgi-docs.readthedocs.io/en/latest/Apache.html#mod-uwsgi>`_.
ANYMORE!
.. code:: apache
<IfModule mod_uwsgi.c>
# SetEnvIf Request_URI "/searx" dontlog
# CustomLog /dev/null combined env=dontlog
<Location /searx >
Require all granted
Options FollowSymLinks Indexes
SetHandler uwsgi-handler
uWSGISocket /run/uwsgi/app/searx/socket
Order deny,allow
Deny from all
# Allow from fd00::/8 192.168.0.0/16 fe80::/10 127.0.0.0/8 ::1
Allow from all
</Location>
</IfModule>
.. _restart apache:
Restart service
===============
.. tabs::
.. group-tab:: Ubuntu / debian
.. code:: sh
sudo -H systemctl restart apache2
sudo -H service uwsgi restart searx
.. group-tab:: Arch Linux
.. code:: sh
sudo -H systemctl restart httpd
sudo -H systemctl restart uwsgi@searx
.. group-tab:: Fedora / RHEL
.. code:: sh
sudo -H systemctl restart httpd
sudo -H touch /etc/uwsgi.d/searxng.ini
disable logs
============
For better privacy you can disable Apache logs. In the examples above activate
one of the lines and `restart apache`_::
# SetEnvIf Request_URI "/searx" dontlog
# CustomLog /dev/null combined env=dontlog
The ``CustomLog`` directive disable logs for the whole (virtual) server, use it
when the URL of the service does not have a path component (``/searx``) / is
located at root (``/``).
.. _The Debian Layout:
The Debian Layout
=================
Be aware that the Debian layout is quite different from the standard Apache
configuration. For details look at the README.Debian_
(``/usr/share/doc/apache2/README.Debian.gz``). Some commands you should know on
Debian:
* :man:`apache2ctl`: Apache HTTP server control interface
* :man:`a2enmod`, :man:`a2dismod`: switch on/off modules
* :man:`a2enconf`, :man:`a2disconf`: switch on/off configurations
* :man:`a2ensite`, :man:`a2dissite`: switch on/off sites

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.. _installation docker:
===================
Docker installation
===================
.. _ENTRYPOINT: https://docs.docker.com/engine/reference/builder/#entrypoint
.. _searxng-docker: https://github.com/searxng/searxng-docker
.. _[filtron]: https://hub.docker.com/r/dalf/filtron
.. _[morty]: https://hub.docker.com/r/dalf/morty
.. _[caddy]: https://hub.docker.com/_/caddy
.. sidebar:: info
- :origin:`Dockerfile`
- `searxng/searxng @dockerhub <https://hub.docker.com/r/searxng/searxng>`_
- `Docker overview <https://docs.docker.com/get-started/overview>`_
- `Docker Cheat Sheet <https://www.docker.com/sites/default/files/d8/2019-09/docker-cheat-sheet.pdf>`_
- `Alpine Linux <https://alpinelinux.org>`_ `(wiki) <https://en.wikipedia.org/wiki/Alpine_Linux>`__ `apt packages <https://pkgs.alpinelinux.org/packages>`_
- Alpine's ``/bin/sh`` is :man:`dash`
.. tip::
If you intend to create a public instance using Docker, use our well
maintained searxng-docker_ image which includes
- :ref:`protection <searxng filtron>` `[filtron]`_,
- a :ref:`result proxy <searxng morty>` `[morty]`_ and
- a HTTPS reverse proxy `[caddy]`_.
Make sure you have `installed Docker <https://docs.docker.com/get-docker/>`_ and
on Linux, don't forget to add your user to the docker group (log out and log
back in so that your group membership is re-evaluated):
.. code:: sh
$ sudo usermod -a -G docker $USER
searxng/searxng
===============
.. sidebar:: ``docker run``
- `-\-rm <https://docs.docker.com/engine/reference/run/#clean-up---rm>`__
automatically clean up when container exits
- `-d <https://docs.docker.com/engine/reference/run/#detached--d>`__ start
detached container
- `-v <https://docs.docker.com/engine/reference/run/#volume-shared-filesystems>`__
mount volume ``HOST:CONTAINER``
The docker image is based on :origin:`Dockerfile` and available from
`searxng/searxng @dockerhub`_. Using the docker image is quite easy, for
instance you can pull the `searxng/searxng @dockerhub`_ image and deploy a local
instance using `docker run <https://docs.docker.com/engine/reference/run/>`_:
.. code:: sh
$ mkdir my-instance
$ cd my-instance
$ export PORT=8080
$ docker pull searxng/searxng
$ docker run --rm \
-d -p ${PORT}:8080 \
-v "${PWD}/searxng:/etc/searxng" \
-e "BASE_URL=http://localhost:$PORT/" \
-e "INSTANCE_NAME=my-instance" \
searxng/searxng
2f998.... # container's ID
Open your WEB browser and visit the URL:
.. code:: sh
$ xdg-open "http://localhost:$PORT"
Inside ``${PWD}/searxng``, you will find ``settings.yml`` and ``uwsgi.ini``. You
can modify these files according to your needs and restart the Docker image.
.. code:: sh
$ docker container restart 2f998
Use command ``container ls`` to list running containers, add flag `-a
<https://docs.docker.com/engine/reference/commandline/container_ls>`__ to list
exited containers also. With ``container stop`` a running container can be
stoped. To get rid of a container use ``container rm``:
.. code:: sh
$ docker container ls
CONTAINER ID IMAGE COMMAND CREATED ...
2f998d725993 searxng/searxng "/sbin/tini -- /usr/…" 7 minutes ago ...
$ docker container stop 2f998
$ docker container rm 2f998
.. sidebar:: Warning
This might remove all docker items, not only those from SearXNG.
If you won't use docker anymore and want to get rid of all conatiners & images
use the following *prune* command:
.. code:: sh
$ docker stop $(docker ps -aq) # stop all containers
$ docker system prune # make some housekeeping
$ docker rmi -f $(docker images -q) # drop all images
shell inside container
----------------------
.. sidebar:: Bashism
- `A tale of two shells: bash or dash <https://lwn.net/Articles/343924/>`_
- `How to make bash scripts work in dash <http://mywiki.wooledge.org/Bashism>`_
- `Checking for Bashisms <https://dev.to/bowmanjd/writing-bash-scripts-that-are-not-only-bash-checking-for-bashisms-and-testing-with-dash-1bli>`_
Like in many other distributions, Alpine's `/bin/sh
<https://wiki.ubuntu.com/DashAsBinSh>`__ is :man:`dash`. Dash is meant to be
`POSIX-compliant <https://pubs.opengroup.org/onlinepubs/9699919799>`__.
Compared to debian, in the Alpine image :man:`bash` is not installed. The
:origin:`dockerfiles/docker-entrypoint.sh` script is checked *against dash*
(``make tests.shell``).
To open a shell inside the container:
.. code:: sh
$ docker exec -it 2f998 sh
Build the image
===============
It's also possible to build SearXNG from the embedded :origin:`Dockerfile`::
$ git clone https://github.com/searxng/searxng.git
$ cd searxng
$ make docker.build
...
Successfully built 49586c016434
Successfully tagged searxng/searxng:latest
Successfully tagged searxng/searxng:1.0.0-209-9c823800-dirty
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
searxng/searxng 1.0.0-209-9c823800-dirty 49586c016434 13 minutes ago 308MB
searxng/searxng latest 49586c016434 13 minutes ago 308MB
alpine 3.13 6dbb9cc54074 3 weeks ago 5.61MB
Command line
============
.. sidebar:: docker run
Use flags ``-it`` for `interactive processes
<https://docs.docker.com/engine/reference/run/#foreground>`__.
In the :origin:`Dockerfile` the ENTRYPOINT_ is defined as
:origin:`dockerfiles/docker-entrypoint.sh`
.. code:: sh
docker run --rm -it searxng/searxng -h
.. program-output:: ../dockerfiles/docker-entrypoint.sh -h

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.. _installation nginx:
==================
Install with nginx
==================
.. _nginx:
https://docs.nginx.com/nginx/admin-guide/
.. _nginx server configuration:
https://docs.nginx.com/nginx/admin-guide/web-server/web-server/#setting-up-virtual-servers
.. _nginx beginners guide:
https://nginx.org/en/docs/beginners_guide.html
.. _Getting Started wiki:
https://www.nginx.com/resources/wiki/start/
.. _uWSGI support from nginx:
https://uwsgi-docs.readthedocs.io/en/latest/Nginx.html
.. _uwsgi_params:
https://uwsgi-docs.readthedocs.io/en/latest/Nginx.html#configuring-nginx
.. _SCRIPT_NAME:
https://werkzeug.palletsprojects.com/en/1.0.x/wsgi/#werkzeug.wsgi.get_script_name
.. sidebar:: further reading
- nginx_
- `nginx beginners guide`_
- `nginx server configuration`_
- `Getting Started wiki`_
- `uWSGI support from nginx`_
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
----
**Install** :ref:`nginx searxng site` using :ref:`filtron.sh <filtron.sh overview>`
.. code:: bash
$ sudo -H ./utils/filtron.sh nginx install
**Install** :ref:`nginx searxng site` using :ref:`morty.sh <morty.sh overview>`
.. code:: bash
$ sudo -H ./utils/morty.sh nginx install
----
The nginx HTTP server
=====================
If nginx_ is not installed (uwsgi will not work with the package nginx-light),
install it now.
.. tabs::
.. group-tab:: Ubuntu / debian
.. code:: sh
sudo -H apt-get install nginx
.. group-tab:: Arch Linux
.. code-block:: sh
sudo -H pacman -S nginx-mainline
sudo -H systemctl enable nginx
sudo -H systemctl start nginx
.. group-tab:: Fedora / RHEL
.. code-block:: sh
sudo -H dnf install nginx
sudo -H systemctl enable nginx
sudo -H systemctl start nginx
Now at http://localhost you should see a *Welcome to nginx!* page, on Fedora you
see a *Fedora Webserver - Test Page*. The test page comes from the default
`nginx server configuration`_. How this default intro site is configured,
depends on the linux distribution:
.. tabs::
.. group-tab:: Ubuntu / debian
.. code:: sh
less /etc/nginx/nginx.conf
there is a line including site configurations from:
.. code:: nginx
include /etc/nginx/sites-enabled/*;
.. group-tab:: Arch Linux
.. code-block:: sh
less /etc/nginx/nginx.conf
in there is a configuration section named ``server``:
.. code-block:: nginx
server {
listen 80;
server_name localhost;
# ...
}
.. group-tab:: Fedora / RHEL
.. code-block:: sh
less /etc/nginx/nginx.conf
there is a line including site configurations from:
.. code:: nginx
include /etc/nginx/conf.d/*.conf;
.. _nginx searxng site:
A nginx SearXNG site
====================
.. sidebar:: public to the internet?
If your SearXNG instance is public, stop here and first install :ref:`filtron
reverse proxy <filtron.sh>` and :ref:`result proxy morty <morty.sh>`, see
:ref:`installation scripts`. If already done, follow setup: *SearXNG via
filtron plus morty*.
Now you have to create a configuration for the SearXNG site. If nginx_ is new to
you, the `nginx beginners guide`_ is a good starting point and the `Getting
Started wiki`_ is always a good resource *to keep in the pocket*.
.. tabs::
.. group-tab:: Ubuntu / debian
Create configuration at ``/etc/nginx/sites-available/searxng`` and place a
symlink to sites-enabled:
.. code:: sh
sudo -H ln -s /etc/nginx/sites-available/searxng /etc/nginx/sites-enabled/searxng
.. group-tab:: Arch Linux
In the ``/etc/nginx/nginx.conf`` file, replace the configuration section
named ``server``.
.. group-tab:: Fedora / RHEL
Create configuration at ``/etc/nginx/conf.d/searxng`` and place a
symlink to sites-enabled:
.. _nginx searxng via filtron plus morty:
.. tabs::
.. group-tab:: SearXNG via filtron plus morty
Use this setup, if your instance is public to the internet, compare
figure: :ref:`architecture <arch public>` and :ref:`installation scripts`.
1. Configure a reverse proxy for :ref:`filtron <filtron.sh>`, listening on
*localhost 4004* (:ref:`filtron route request`):
.. code:: nginx
# https://example.org/searx
location /searx {
proxy_pass http://127.0.0.1:4004/;
proxy_set_header Host $host;
proxy_set_header Connection $http_connection;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Scheme $scheme;
proxy_set_header X-Script-Name /searx;
}
location /searx/static/ {
alias /usr/local/searx/searx-src/searx/static/;
}
2. Configure reverse proxy for :ref:`morty <searxng morty>`, listening on
*localhost 3000*:
.. code:: nginx
# https://example.org/morty
location /morty {
proxy_pass http://127.0.0.1:3000/;
proxy_set_header Host $host;
proxy_set_header Connection $http_connection;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Scheme $scheme;
}
For a fully result proxification add :ref:`morty's <searxng morty>` **public
URL** to your :origin:`searx/settings.yml`:
.. code:: yaml
result_proxy:
# replace example.org with your server's public name
url : https://example.org/morty
key : !!binary "insert_your_morty_proxy_key_here"
server:
image_proxy : True
.. group-tab:: proxy or uWSGI
Be warned, with this setup, your instance isn't :ref:`protected <searxng
filtron>`. Nevertheless it is good enough for intranet usage and it is a
excellent example of; *how different services can be set up*. The next
example shows a reverse proxy configuration wrapping the :ref:`searx-uWSGI
application <uwsgi configuration>`, listening on ``http =
127.0.0.1:8888``.
.. code:: nginx
# https://hostname.local/
location / {
proxy_pass http://127.0.0.1:8888;
proxy_set_header Host $host;
proxy_set_header Connection $http_connection;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Scheme $scheme;
proxy_buffering off;
}
Alternatively you can use the `uWSGI support from nginx`_ via unix
sockets. For socket communication, you have to activate ``socket =
/run/uwsgi/app/searx/socket`` and comment out the ``http =
127.0.0.1:8888`` configuration in your :ref:`uwsgi ini file <uwsgi
configuration>`.
The example shows a nginx virtual ``server`` configuration, listening on
port 80 (IPv4 and IPv6 http://[::]:80). The uWSGI app is configured at
location ``/`` by importing the `uwsgi_params`_ and passing requests to
the uWSGI socket (``uwsgi_pass``). The ``server``\'s root points to the
:ref:`searx-src clone <searx-src>` and wraps directly the
:origin:`searx/static/` content at ``location /static``.
.. code:: nginx
server {
# replace hostname.local with your server's name
server_name hostname.local;
listen 80;
listen [::]:80;
location / {
include uwsgi_params;
uwsgi_pass unix:/run/uwsgi/app/searx/socket;
}
root /usr/local/searx/searx-src/searx;
location /static { }
}
If not already exists, create a folder for the unix sockets, which can be
used by the SearXNG account:
.. code:: bash
mkdir -p /run/uwsgi/app/searx/
sudo -H chown -R searx:searx /run/uwsgi/app/searx/
.. group-tab:: \.\. at subdir URL
Be warned, with these setups, your instance isn't :ref:`protected <searxng
filtron>`. The examples are just here to demonstrate how to export the
SearXNG application from a subdirectory URL ``https://example.org/searx/``.
.. code:: nginx
# https://hostname.local/searx
location /searx {
proxy_pass http://127.0.0.1:8888;
proxy_set_header Host $host;
proxy_set_header Connection $http_connection;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Scheme $scheme;
proxy_set_header X-Script-Name /searx;
proxy_buffering off;
}
location /searx/static/ {
alias /usr/local/searx/searx-src/searx/static/;
}
The ``X-Script-Name /searx`` is needed by the SearXNG implementation to
calculate relative URLs correct. The next example shows a uWSGI
configuration. Since there are no HTTP headers in a (u)WSGI protocol, the
value is shipped via the SCRIPT_NAME_ in the WSGI environment.
.. code:: nginx
# https://hostname.local/searx
location /searx {
uwsgi_param SCRIPT_NAME /searx;
include uwsgi_params;
uwsgi_pass unix:/run/uwsgi/app/searx/socket;
}
location /searx/static/ {
alias /usr/local/searx/searx-src/searx/;
}
For SearXNG to work correctly the ``base_url`` must be set in the
:origin:`searx/settings.yml`.
.. code:: yaml
server:
# replace example.org with your server's public name
base_url : https://example.org/searx/
Restart service:
.. tabs::
.. group-tab:: Ubuntu / debian
.. code:: sh
sudo -H systemctl restart nginx
sudo -H service uwsgi restart searx
.. group-tab:: Arch Linux
.. code:: sh
sudo -H systemctl restart nginx
sudo -H systemctl restart uwsgi@searx
.. group-tab:: Fedora
.. code:: sh
sudo -H systemctl restart nginx
sudo -H touch /etc/uwsgi.d/searxng.ini
Disable logs
============
For better privacy you can disable nginx logs in ``/etc/nginx/nginx.conf``.
.. code:: nginx
http {
# ...
access_log /dev/null;
error_log /dev/null;
# ...
}

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.. _installation basic:
=========================
Step by step installation
=========================
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
Step by step installation with virtualenv. For Ubuntu, be sure to have enable
universe repository.
.. _install packages:
Install packages
================
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START distro-packages
:end-before: END distro-packages
.. hint::
This installs also the packages needed by :ref:`searxng uwsgi`
.. _create searxng user:
Create user
===========
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START create user
:end-before: END create user
.. _searx-src:
Install SearXNG & dependencies
==============================
Start a interactive shell from new created user and clone searx:
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START clone searxng
:end-before: END clone searxng
In the same shell create *virtualenv*:
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START create virtualenv
:end-before: END create virtualenv
To install searx's dependencies, exit the SearXNG *bash* session you opened above
and restart a new. Before install, first check if your *virtualenv* was sourced
from the login (*~/.profile*):
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START manage.sh update_packages
:end-before: END manage.sh update_packages
.. tip::
Open a second terminal for the configuration tasks and leave the ``(searx)$``
terminal open for the tasks below.
.. _use_default_settings.yml:
Configuration
=============
.. sidebar:: ``use_default_settings: True``
- :ref:`settings global`
- :ref:`settings location`
- :ref:`settings use_default_settings`
- :origin:`/etc/searxng/settings.yml <utils/templates/etc/searxng/settings.yml>`
To create a initial ``/etc/searxng/settings.yml`` you can start with a copy of
the file :origin:`utils/templates/etc/searxng/settings.yml`. This setup
:ref:`use default settings <settings use_default_settings>` from
:origin:`searx/settings.yml`.
For a *minimal setup*, configure like shown below – replace ``searx@$(uname
-n)`` with a name of your choice, set ``ultrasecretkey`` -- *and/or* edit
``/etc/searxng/settings.yml`` to your needs.
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START searxng config
:end-before: END searxng config
.. tabs::
.. group-tab:: Use default settings
.. literalinclude:: ../../utils/templates/etc/searxng/settings.yml
:language: yaml
.. group-tab:: searx/settings.yml
.. literalinclude:: ../../searx/settings.yml
:language: yaml
Check
=====
To check your SearXNG setup, optional enable debugging and start the *webapp*.
SearXNG looks at the exported environment ``$SEARXNG_SETTINGS_PATH`` for a
configuration file.
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START check searxng installation
:end-before: END check searxng installation
If everything works fine, hit ``[CTRL-C]`` to stop the *webapp* and disable the
debug option in ``settings.yml``. You can now exit SearXNG user bash (enter exit
command twice). At this point SearXNG is not demonized; uwsgi allows this.

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.. _installation switch2ng:
============================
Switch from searx to SearXNG
============================
.. sidebar:: info
- :pull:`456`
- :pull:`A comment about rolling release <446#issuecomment-954730358>`
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
If you have a searx installation on your sever and want to switch to SearXNG,
you need to uninstall searx first. If you have an old searx docker installation
replace your docker image / see :ref:`installation docker`.
If your searx instance was installed *"Step by step"* or by the *"Installation
scripts"*, you need to undo the installation procedure completely. If you have
morty & filtron installed, it is recommended to uninstall these services also.
In case of scripts, to uninstall use the scripts from the origin you installed
searx from.
If you have removed the old searx installation, clone from SearXNG and and start
with your installation procedure (e.g. :ref:`installation scripts`):
.. code:: bash
$ cd ~/Downloads
$ git clone https://github.com/searxng/searxng.git searxng
$ cd searxng
$ ...
``.config.sh``
==============
Please take into account; SearXNG has normalized ``.config.sh`` with
``settings.yml`` and some of the environment settings has been removed from or
renamed in the ``.config.sh``:
- :patch:`[mod] normalize .config.sh with settings.yml <f61c918d>`
- :patch:`[fix] ./utils/filtron.sh - FILTRON_TARGET from YAML settings <7196a9b5>`
- :patch:`SearXNG: SEARXNG_SETTINGS_PATH <253b8503>`
Check after Installation
========================
Once you have done your installation, you can run a SearXNG *check* procedure,
to see if there are some left overs. In this example there exists a *old*
``/etc/searx/settings.yml``::
$ sudo -H ./utils/searx.sh install check
============================
SearXNG (check installation)
============================
ERROR: settings.yml in /etc/searx/ is deprecated, move file to folder /etc/searxng/
INFO: SearXNG instance already installed at: /usr/local/searx/searx-src
...
INFO: Service account searx exists.
INFO: ~searx: python environment is available.
INFO: ~searx: SearXNG software is installed.
INFO: uWSGI app searxng.ini is enabled.
INFO searx : merge the default settings ( /usr/local/searx/searx-src/searx/settings.yml ) and the user setttings ( /etc/searxng/settings.yml )
INFO searx : max_request_timeout=None
To *check* the filtron & morty installations, use similar commands::
$ sudo -H /utils/filtron.sh install check
$ sudo -H /utils/morty.sh install check

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.. _searxng uwsgi:
=====
uwsgi
=====
.. sidebar:: further reading
- `systemd.unit`_
- `uWSGI Emperor`_
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
.. _systemd.unit: https://www.freedesktop.org/software/systemd/man/systemd.unit.html
.. _One service per app in systemd:
https://uwsgi-docs.readthedocs.io/en/latest/Systemd.html#one-service-per-app-in-systemd
.. _uWSGI Emperor:
https://uwsgi-docs.readthedocs.io/en/latest/Emperor.html
.. _uwsgi ini file:
https://uwsgi-docs.readthedocs.io/en/latest/Configuration.html#ini-files
.. _systemd unit template:
http://0pointer.de/blog/projects/instances.html
Origin uWSGI
============
How uWSGI is implemented by distributors is different. uWSGI itself
recommend two methods
`systemd.unit`_ template files as described here `One service per app in systemd`_.
There is one `systemd unit template`_ and one `uwsgi ini file`_ per uWSGI-app
placed at dedicated locations. Take archlinux and a searxng.ini as example::
unit template --> /usr/lib/systemd/system/uwsgi@.service
uwsgi ini files --> /etc/uwsgi/searxng.ini
The SearXNG app can be maintained as know from common systemd units::
systemctl enable uwsgi@searx
systemctl start uwsgi@searx
systemctl restart uwsgi@searx
systemctl stop uwsgi@searx
The `uWSGI Emperor`_ mode which fits for maintaining a large range of uwsgi apps.
The Emperor mode is a special uWSGI instance that will monitor specific
events. The Emperor mode (service) is started by a (common, not template)
systemd unit. The Emperor service will scan specific directories for `uwsgi
ini file`_\s (also know as *vassals*). If a *vassal* is added, removed or the
timestamp is modified, a corresponding action takes place: a new uWSGI
instance is started, reload or stopped. Take Fedora and a searxng.ini as
example::
to start a new SearXNG instance create --> /etc/uwsgi.d/searxng.ini
to reload the instance edit timestamp --> touch /etc/uwsgi.d/searxng.ini
to stop instance remove ini --> rm /etc/uwsgi.d/searxng.ini
Distributors
============
The `uWSGI Emperor`_ mode and `systemd unit template`_ is what the distributors
mostly offer their users, even if they differ in the way they implement both
modes and their defaults. Another point they might differ is the packaging of
plugins (if so, compare :ref:`install packages`) and what the default python
interpreter is (python2 vs. python3).
Fedora starts a Emperor by default, while archlinux does not start any uwsgi
service by default. Worth to know; debian (ubuntu) follow a complete different
approach. *debian*: your are familiar with the apache infrastructure? .. they
do similar for the uWSGI infrastructure (with less comfort), the folders are::
/etc/uwsgi/apps-available/
/etc/uwsgi/apps-enabled/
The `uwsgi ini file`_ is enabled by a symbolic link::
ln -s /etc/uwsgi/apps-available/searxng.ini /etc/uwsgi/apps-enabled/
From debian's documentation (``/usr/share/doc/uwsgi/README.Debian.gz``): You
could control specific instance(s) by issuing::
service uwsgi <command> <confname> <confname> ...
sudo -H service uwsgi start searx
sudo -H service uwsgi stop searx
My experience is, that this command is a bit buggy.
.. _uwsgi configuration:
Alltogether
===========
Create the configuration ini-file according to your distribution (see below) and
restart the uwsgi application.
.. tabs::
.. group-tab:: Ubuntu / debian
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START searxng uwsgi-description ubuntu-20.04
:end-before: END searxng uwsgi-description ubuntu-20.04
.. hotfix: a bug group-tab need this comment
.. group-tab:: Arch Linux
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START searxng uwsgi-description arch
:end-before: END searxng uwsgi-description arch
.. hotfix: a bug group-tab need this comment
.. group-tab:: Fedora / RHEL
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START searxng uwsgi-description fedora
:end-before: END searxng uwsgi-description fedora
.. tabs::
.. group-tab:: Ubuntu / debian
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START searxng uwsgi-appini ubuntu-20.04
:end-before: END searxng uwsgi-appini ubuntu-20.04
.. hotfix: a bug group-tab need this comment
.. group-tab:: Arch Linux
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START searxng uwsgi-appini arch
:end-before: END searxng uwsgi-appini arch
.. hotfix: a bug group-tab need this comment
.. group-tab:: Fedora / RHEL
.. kernel-include:: $DOCS_BUILD/includes/searx.rst
:start-after: START searxng uwsgi-appini fedora
:end-before: END searxng uwsgi-appini fedora

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.. _installation:
============
Installation
============
.. sidebar:: info
:ref:`installation switch2ng`
*You're spoilt for choice*, choose your preferred method of installation.
- :ref:`installation docker`
- :ref:`installation scripts`
- :ref:`installation basic`
The :ref:`installation basic` is good enough for intranet usage and it is a
excellent illustration of *how a SearXNG instance is build up*. If you place your
instance public to the internet you should really consider to install a
:ref:`filtron reverse proxy <filtron.sh>` and for privacy a :ref:`result proxy
<morty.sh>` is mandatory.
Therefore, if you do not have any special preferences, its recommend to use the
:ref:`installation docker` or the `Installation scripts`_ from our :ref:`tooling
box <toolboxing>` as described below.
.. _installation scripts:
Installation scripts
====================
.. sidebar:: Update OS first!
To avoid unwanted side effects, update your OS before installing SearXNG.
The following will install a setup as shown in :ref:`architecture`. First you
need to get a clone. The clone is only needed for the installation procedure
and some maintenance tasks (alternatively you can create your own fork).
For the installation procedure, use a *sudoer* login to run the scripts. If you
install from ``root``, take into account that the scripts are creating a
``searx``, a ``filtron`` and a ``morty`` user. In the installation procedure
these new created users do need read access to the clone of searx, which is not
the case if you clone into a folder below ``/root``.
.. code:: bash
$ cd ~/Downloads
$ git clone https://github.com/searxng/searxng.git searxng
$ cd searxng
.. sidebar:: further read
- :ref:`toolboxing`
- :ref:`update searxng`
- :ref:`inspect searxng`
**Install** :ref:`SearXNG service <searx.sh>`
This installs SearXNG as described in :ref:`installation basic`.
.. code:: bash
$ sudo -H ./utils/searx.sh install all
**Install** :ref:`filtron reverse proxy <filtron.sh>`
.. code:: bash
$ sudo -H ./utils/filtron.sh install all
**Install** :ref:`result proxy <morty.sh>`
.. code:: bash
$ sudo -H ./utils/morty.sh install all
If all services are running fine, you can add it to your HTTP server:
**Install** HTTP
- :ref:`installation apache`
- :ref:`installation nginx`
**Install** :ref:`external plugins <dev plugin>`
Use SearXNG's ``shell`` to install external plugins. In the example below we
install the SearXNG plugins from **The Green Web Foundation** `[ref]
<https://www.thegreenwebfoundation.org/news/searching-the-green-web-with-searx/>`__:
.. code:: bash
$ sudo -H ./utils/searx.sh shell
// exit with [CTRL-D]
(searx-pyenv) searx@ryzen:~$ pip install git+https://github.com/return42/tgwf-searx-plugins
In the :ref:`settings.yml` activate the ``plugins:`` section and add module
``only_show_green_results`` from tgwf-searx-plugins.
.. code:: yaml
plugins:
- only_show_green_results
.. _git stash: https://git-scm.com/docs/git-stash
.. tip::
About script's installation options have a look at chapter :ref:`toolboxing
setup`. How to brand your instance see chapter :ref:`settings global`. To
*stash* your instance's setup, `git stash`_ your clone's :origin:`.config.sh`
file .

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.. _searxng morty:
=========================
How to setup result proxy
=========================
.. sidebar:: further reading
- :ref:`morty.sh`
.. _morty: https://github.com/asciimoo/morty
.. _morty's README: https://github.com/asciimoo/morty
By default SearXNG can only act as an image proxy for result images, but it is
possible to proxify all the result URLs with an external service, morty_.
To use this feature, morty has to be installed and activated in SearXNG's
``settings.yml``. Add the following snippet to your ``settings.yml`` and
restart searx:
.. code:: yaml
result_proxy:
url : http://127.0.0.1:3000/
key : !!binary "insert_your_morty_proxy_key_here"
Note that the example above (``http://127.0.0.1:3000``) is only for single-user
instances without a HTTP proxy. If your morty service is public, the url is the
address of the reverse proxy (e.g ``https://example.org/morty``).
For more information about *result proxy* have a look at *"SearXNG via filtron
plus morty"* in the :ref:`nginx <nginx searxng via filtron plus morty>` and
:ref:`apache <apache searxng via filtron plus morty>` sections.
``url``
Is the address of the running morty service.
``key``
Is an optional argument, see `morty's README`_ for more information.

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.. _plugins generic:
===============
Plugins builtin
===============
.. sidebar:: Further reading ..
- :ref:`dev plugin`
Configuration defaults (at built time):
:DO: Default on
.. _configured plugins:
.. jinja:: searx
.. flat-table:: Plugins configured at built time (defaults)
:header-rows: 1
:stub-columns: 1
:widths: 3 1 9
* - Name
- DO
- Description
JS & CSS dependencies
{% for plgin in plugins %}
* - {{plgin.name}}
- {{(plgin.default_on and "y") or ""}}
- {{plgin.description}}
{% for dep in (plgin.js_dependencies + plgin.css_dependencies) %}
| ``{{dep}}`` {% endfor %}
{% endfor %}

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.. _update searxng:
=============
How to update
=============
How to update depends on the :ref:`installation` method. If you have used the
:ref:`installation scripts`, use ``update`` command from the scripts.
**Update** :ref:`SearXNG service <searx.sh>`
.. code:: sh
sudo -H ./utils/searx.sh update searx
**Update** :ref:`filtron reverse proxy <filtron.sh>`
.. code:: sh
sudo -H ./utils/filtron.sh update filtron
**Update** :ref:`result proxy <morty.sh>`
.. code:: bash
$ sudo -H ./utils/morty.sh update morty
.. _inspect searxng:
======================
How to inspect & debug
======================
.. sidebar:: further read
- :ref:`toolboxing`
- :ref:`Makefile`
How to debug depends on the :ref:`installation` method. If you have used the
:ref:`installation scripts`, use ``inspect`` command from the scripts.
**Inspect** :ref:`SearXNG service <searx.sh>`
.. code:: sh
sudo -H ./utils/searx.sh inspect service
**Inspect** :ref:`filtron reverse proxy <filtron.sh>`
.. code:: sh
sudo -H ./utils/filtron.sh inspect service
**Inspect** :ref:`result proxy <morty.sh>`
.. code:: bash
$ sudo -H ./utils/morty.sh inspect service

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.. _how to contribute:
=================
How to contribute
=================
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
Prime directives: Privacy, Hackability
======================================
SearXNG has two prime directives, **privacy-by-design and hackability** . The
hackability comes in three levels:
- support of search engines
- plugins to alter search behaviour
- hacking SearXNG itself
Note the lack of "world domination" among the directives. SearXNG has no
intention of wide mass-adoption, rounded corners, etc. The prime directive
"privacy" deserves a separate chapter, as it's quite uncommon unfortunately.
Privacy-by-design
-----------------
SearXNG was born out of the need for a **privacy-respecting** search tool which
can be extended easily to maximize both, its search and its privacy protecting
capabilities.
A few widely used features work differently or turned off by default or not
implemented at all **as a consequence of privacy-by-design**.
If a feature reduces the privacy preserving aspects of searx, it should be
switched off by default or should not implemented at all. There are plenty of
search engines already providing such features. If a feature reduces the
protection of searx, users must be informed about the effect of choosing to
enable it. Features that protect privacy but differ from the expectations of
the user should also be explained.
Also, if you think that something works weird with searx, it's might be because
of the tool you use is designed in a way to interfere with the privacy respect.
Submitting a bugreport to the vendor of the tool that misbehaves might be a good
feedback to reconsider the disrespect to its customers (e.g. ``GET`` vs ``POST``
requests in various browsers).
Remember the other prime directive of SearXNG is to be hackable, so if the above
privacy concerns do not fancy you, simply fork it.
*Happy hacking.*
Code
====
.. _PEP8: https://www.python.org/dev/peps/pep-0008/
.. _Conventional Commits: https://www.conventionalcommits.org/
.. _Git Commit Good Practice: https://wiki.openstack.org/wiki/GitCommitMessages
.. _Structural split of changes:
https://wiki.openstack.org/wiki/GitCommitMessages#Structural_split_of_changes
.. _gitmoji: https://gitmoji.carloscuesta.me/
.. _Semantic PR: https://github.com/zeke/semantic-pull-requests
.. sidebar:: Create good commits!
- `Structural split of changes`_
- `Conventional Commits`_
- `Git Commit Good Practice`_
- some like to use: gitmoji_
- not yet active: `Semantic PR`_
In order to submit a patch, please follow the steps below:
- Follow coding conventions.
- PEP8_ standards apply, except the convention of line length
- Maximum line length is 120 characters
- The cardinal rule for creating good commits is to ensure there is only one
*logical change* per commit / read `Structural split of changes`_
- Check if your code breaks existing tests. If so, update the tests or fix your
code.
- If your code can be unit-tested, add unit tests.
- Add yourself to the :origin:`AUTHORS.rst` file.
- Choose meaningful commit messages, read `Conventional Commits`_
.. code::
<type>[optional scope]: <description>
[optional body]
[optional footer(s)]
- Create a pull request.
For more help on getting started with SearXNG development, see :ref:`devquickstart`.
Translation
===========
Translation currently takes place on :ref:`weblate <translation>`.
.. _contrib docs:
Documentation
=============
.. _Sphinx: https://www.sphinx-doc.org
.. _reST: https://www.sphinx-doc.org/en/master/usage/restructuredtext/basics.html
.. sidebar:: The reST sources
has been moved from ``gh-branch`` into ``master`` (:origin:`docs`).
The documentation is built using Sphinx_. So in order to be able to generate
the required files, you have to install it on your system. Much easier, use
our :ref:`makefile`.
Here is an example which makes a complete rebuild:
.. code:: sh
$ make docs.clean docs.html
...
The HTML pages are in dist/docs.
.. _make docs.live:
live build
----------
.. _sphinx-autobuild:
https://github.com/executablebooks/sphinx-autobuild/blob/master/README.md
.. sidebar:: docs.clean
It is recommended to assert a complete rebuild before deploying (use
``docs.clean``).
Live build is like WYSIWYG. If you want to edit the documentation, its
recommended to use. The Makefile target ``docs.live`` builds the docs, opens
URL in your favorite browser and rebuilds every time a reST file has been
changed.
.. code:: sh
$ make docs.live
...
The HTML pages are in dist/docs.
... Serving on http://0.0.0.0:8000
... Start watching changes
Live builds are implemented by sphinx-autobuild_. Use environment
``$(SPHINXOPTS)`` to pass arguments to the sphinx-autobuild_ command. Except
option ``--host`` (which is always set to ``0.0.0.0``) you can pass any
argument. E.g to find and use a free port, use:
.. code:: sh
$ SPHINXOPTS="--port 0" make docs.live
...
... Serving on http://0.0.0.0:50593
...
.. _deploy on github.io:
deploy on github.io
-------------------
To deploy documentation at :docs:`github.io <.>` use Makefile target :ref:`make
docs.gh-pages`, which builds the documentation and runs all the needed git add,
commit and push:
.. code:: sh
$ make docs.clean docs.gh-pages

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.. _engines-dev:
===============
Engine Overview
===============
.. _metasearch-engine: https://en.wikipedia.org/wiki/Metasearch_engine
.. sidebar:: Further reading ..
- :ref:`configured engines`
- :ref:`settings engine`
.. contents::
:depth: 3
:backlinks: entry
SearXNG is a metasearch-engine_, so it uses different search engines to provide
better results.
Because there is no general search API which could be used for every search
engine, an adapter has to be built between SearXNG and the external search
engines. Adapters are stored under the folder :origin:`searx/engines`.
.. _general engine configuration:
General Engine Configuration
============================
It is required to tell SearXNG the type of results the engine provides. The
arguments can be set in the engine file or in the settings file (normally
``settings.yml``). The arguments in the settings file override the ones in the
engine file.
It does not matter if an option is stored in the engine file or in the settings.
However, the standard way is the following:
.. _engine file:
Engine File
-----------
.. table:: Common options in the engine module
:width: 100%
======================= =========== ========================================================
argument type information
======================= =========== ========================================================
categories list pages, in which the engine is working
paging boolean support multible pages
time_range_support boolean support search time range
engine_type str - ``online`` :ref:`[ref] <demo online engine>` by
default, other possibles values are:
- ``offline`` :ref:`[ref] <offline engines>`
- ``online_dictionary``
- ``online_currency``
======================= =========== ========================================================
.. _engine settings:
Engine ``settings.yml``
-----------------------
For a more detailed description, see :ref:`settings engine` in the :ref:`settings.yml`.
.. table:: Common options in the engine setup (``settings.yml``)
:width: 100%
======================= =========== ===============================================
argument type information
======================= =========== ===============================================
name string name of search-engine
engine string name of searx-engine (filename without ``.py``)
enable_http bool enable HTTP (by default only HTTPS is enabled).
shortcut string shortcut of search-engine
timeout string specific timeout for search-engine
display_error_messages boolean display error messages on the web UI
proxies dict set proxies for a specific engine
(e.g. ``proxies : {http: socks5://proxy:port,
https: socks5://proxy:port}``)
======================= =========== ===============================================
.. _engine overrides:
Overrides
---------
A few of the options have default values in the namespace of engine's python
modul, but are often overwritten by the settings. If ``None`` is assigned to an
option in the engine file, it has to be redefined in the settings, otherwise
SearXNG will not start with that engine (global names with a leading underline can
be ``None``).
Here is an very simple example of the global names in the namespace of engine's
module:
.. code:: python
# engine dependent config
categories = ['general']
paging = True
_non_overwritten_global = 'foo'
.. table:: The naming of overrides is arbitrary / recommended overrides are:
:width: 100%
======================= =========== ===========================================
argument type information
======================= =========== ===========================================
base_url string base-url, can be overwritten to use same
engine on other URL
number_of_results int maximum number of results per request
language string ISO code of language and country like en_US
api_key string api-key if required by engine
======================= =========== ===========================================
.. _engine request:
Making a Request
================
To perform a search an URL have to be specified. In addition to specifying an
URL, arguments can be passed to the query.
.. _engine request arguments:
Passed Arguments (request)
--------------------------
These arguments can be used to construct the search query. Furthermore,
parameters with default value can be redefined for special purposes.
.. table:: If the ``engine_type`` is ``online``
:width: 100%
====================== ============== ========================================================================
argument type default-value, information
====================== ============== ========================================================================
url str ``''``
method str ``'GET'``
headers set ``{}``
data set ``{}``
cookies set ``{}``
verify bool ``True``
headers.User-Agent str a random User-Agent
category str current category, like ``'general'``
safesearch int ``0``, between ``0`` and ``2`` (normal, moderate, strict)
time_range Optional[str] ``None``, can be ``day``, ``week``, ``month``, ``year``
pageno int current pagenumber
language str specific language code like ``'en_US'``, or ``'all'`` if unspecified
====================== ============== ========================================================================
.. table:: If the ``engine_type`` is ``online_dictionary``, in addition to the
``online`` arguments:
:width: 100%
====================== ============== ========================================================================
argument type default-value, information
====================== ============== ========================================================================
from_lang str specific language code like ``'en_US'``
to_lang str specific language code like ``'en_US'``
query str the text query without the languages
====================== ============== ========================================================================
.. table:: If the ``engine_type`` is ``online_currency```, in addition to the
``online`` arguments:
:width: 100%
====================== ============== ========================================================================
argument type default-value, information
====================== ============== ========================================================================
amount float the amount to convert
from str ISO 4217 code
to str ISO 4217 code
from_name str currency name
to_name str currency name
====================== ============== ========================================================================
Specify Request
---------------
The function :py:func:`def request(query, params):
<searx.engines.demo_online.request>` always returns the ``params`` variable, the
following parameters can be used to specify a search request:
.. table::
:width: 100%
=================== =========== ==========================================================================
argument type information
=================== =========== ==========================================================================
url str requested url
method str HTTP request method
headers set HTTP header information
data set HTTP data information
cookies set HTTP cookies
verify bool Performing SSL-Validity check
allow_redirects bool Follow redirects
max_redirects int maximum redirects, hard limit
soft_max_redirects int maximum redirects, soft limit. Record an error but don't stop the engine
raise_for_httperror bool True by default: raise an exception if the HTTP code of response is >= 300
=================== =========== ==========================================================================
.. _engine results:
.. _engine media types:
Media Types
===========
Each result item of an engine can be of different media-types. Currently the
following media-types are supported. To set another media-type as ``default``,
the parameter ``template`` must be set to the desired type.
.. table:: Parameter of the **default** media type:
:width: 100%
========================= =====================================================
result-parameter information
========================= =====================================================
url string, url of the result
title string, title of the result
content string, general result-text
publishedDate :py:class:`datetime.datetime`, time of publish
========================= =====================================================
.. table:: Parameter of the **images** media type:
:width: 100%
========================= =====================================================
result-parameter information
------------------------- -----------------------------------------------------
template is set to ``images.html``
========================= =====================================================
url string, url to the result site
title string, title of the result *(partly implemented)*
content *(partly implemented)*
publishedDate :py:class:`datetime.datetime`,
time of publish *(partly implemented)*
img\_src string, url to the result image
thumbnail\_src string, url to a small-preview image
========================= =====================================================
.. table:: Parameter of the **videos** media type:
:width: 100%
========================= =====================================================
result-parameter information
------------------------- -----------------------------------------------------
template is set to ``videos.html``
========================= =====================================================
url string, url of the result
title string, title of the result
content *(not implemented yet)*
publishedDate :py:class:`datetime.datetime`, time of publish
thumbnail string, url to a small-preview image
========================= =====================================================
.. _magnetlink: https://en.wikipedia.org/wiki/Magnet_URI_scheme
.. table:: Parameter of the **torrent** media type:
:width: 100%
========================= =====================================================
result-parameter information
------------------------- -----------------------------------------------------
template is set to ``torrent.html``
========================= =====================================================
url string, url of the result
title string, title of the result
content string, general result-text
publishedDate :py:class:`datetime.datetime`,
time of publish *(not implemented yet)*
seed int, number of seeder
leech int, number of leecher
filesize int, size of file in bytes
files int, number of files
magnetlink string, magnetlink_ of the result
torrentfile string, torrentfile of the result
========================= =====================================================
.. table:: Parameter of the **map** media type:
:width: 100%
========================= =====================================================
result-parameter information
------------------------- -----------------------------------------------------
template is set to ``map.html``
========================= =====================================================
url string, url of the result
title string, title of the result
content string, general result-text
publishedDate :py:class:`datetime.datetime`, time of publish
latitude latitude of result (in decimal format)
longitude longitude of result (in decimal format)
boundingbox boundingbox of result (array of 4. values
``[lat-min, lat-max, lon-min, lon-max]``)
geojson geojson of result (https://geojson.org/)
osm.type type of osm-object (if OSM-Result)
osm.id id of osm-object (if OSM-Result)
address.name name of object
address.road street name of object
address.house_number house number of object
address.locality city, place of object
address.postcode postcode of object
address.country country of object
========================= =====================================================

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=======================
Developer documentation
=======================
.. toctree::
:maxdepth: 2
:caption: Contents
quickstart
contribution_guide
engine_overview
offline_engines
search_api
plugins
translation
lxcdev
makefile
reST
searxng_extra/index

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.. _lxcdev:
==============================
Developing in Linux Containers
==============================
.. _LXC: https://linuxcontainers.org/lxc/introduction/
In this article we will show, how you can make use of Linux Containers (LXC_) in
*distributed and heterogeneous development cycles* (TL;DR; jump to the
:ref:`lxcdev summary`).
.. sidebar:: Audience
This blog post is written for experienced admins and developers. Readers
should have a serious meaning about the terms: *distributed*, *merge* and
*linux container*.
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
Motivation
==========
Usually in our development cycle, we edit the sources and run some test and/or
builds by using ``make`` :ref:`[ref] <makefile>` before we commit. This cycle
is simple and perfect but might fail in some aspects we should not overlook.
**The environment in which we run all our development processes matters!**
The :ref:`makefile` and the :ref:`make install` encapsulate a lot for us, but
they do not have access to all prerequisites. For example, there may have
dependencies on packages that are installed on the developer's desktop, but
usually are not preinstalled on a server or client system. Another example is;
settings have been made to the software on developer's desktop that would never
be set on a *production* system.
**Linux Containers are isolate environments and not to mix up all the
prerequisites from various projects on developer's desktop is always a good
choice.**
The scripts from :ref:`searx_utils` can divide in those to install and maintain
software:
- :ref:`searx.sh`
- :ref:`filtron.sh`
- :ref:`morty.sh`
and the script :ref:`lxc.sh`, with we can scale our installation, maintenance or
even development tasks over a stack of isolated containers / what we call the:
**SearXNG LXC suite**
.. hint::
If you see any problems with the internet connectivity of your
containers read section :ref:`internet connectivity docker`.
Gentlemen, start your engines!
==============================
.. _LXD: https://linuxcontainers.org/lxd/introduction/
.. _archlinux: https://www.archlinux.org/
Before you can start with containers, you need to install and initiate LXD_
once:
.. tabs::
.. group-tab:: desktop
.. code:: sh
$ snap install lxd
$ lxd init --auto
And you need to clone from origin or if you have your own fork, clone from your
fork:
.. tabs::
.. group-tab:: desktop
.. code:: sh
$ cd ~/Downloads
$ git clone https://github.com/searxng/searxng.git searxng
$ cd searxng
The :ref:`lxc-searx.env` consists of several images, see ``export
LXC_SUITE=(...`` near by :origin:`utils/lxc-searx.env#L19`. For this blog post
we exercise on a archlinux_ image. The container of this image is named
``searx-archlinux``. Lets build the container, but be sure that this container
does not already exists, so first lets remove possible old one:
.. tabs::
.. group-tab:: desktop
.. code:: sh
$ sudo -H ./utils/lxc.sh remove searx-archlinux
$ sudo -H ./utils/lxc.sh build searx-archlinux
.. sidebar:: The ``searx-archlinux`` container
is the base of all our exercises here.
In this container we install all services :ref:`including searx, morty & filtron
<lxc.sh install suite>` in once:
.. tabs::
.. group-tab:: desktop
.. code:: sh
$ sudo -H ./utils/lxc.sh install suite searx-archlinux
To proxy HTTP from filtron and morty in the container to the outside of the
container, install nginx into the container. Once for the bot blocker filtron:
.. tabs::
.. group-tab:: desktop
.. code:: sh
$ sudo -H ./utils/lxc.sh cmd searx-archlinux \
./utils/filtron.sh nginx install
...
INFO: got 429 from http://10.174.184.156/searx
and once for the content sanitizer (content proxy morty):
.. tabs::
.. group-tab:: desktop
.. code:: sh
$ sudo -H ./utils/lxc.sh cmd searx-archlinux \
./utils/morty.sh nginx install
...
INFO: got 200 from http://10.174.184.156/morty/
.. sidebar:: Fully functional SearXNG suite
From here on you have a fully functional SearXNG suite running with bot
blocker (filtron) and WEB content sanitizer (content proxy morty), both are
needed for a *privacy protecting* search engine.
On your system, the IP of your ``searx-archlinux`` container differs from
http://10.174.184.156/searx, just open the URL reported in your installation
protocol in your WEB browser from the desktop to test the instance from outside
of the container.
In such a earXNG suite admins can maintain and access the debug log of the
different services quite easy.
.. _working in containers:
In containers, work as usual
============================
Usually you open a root-bash using ``sudo -H bash``. In case of LXC containers
open the root-bash in the container using ``./utils/lxc.sh cmd
searx-archlinux``:
.. tabs::
.. group-tab:: desktop
.. code:: sh
$ sudo -H ./utils/lxc.sh cmd searx-archlinux bash
INFO: [searx-archlinux] bash
[root@searx-archlinux searx]# pwd
/share/searxng
The prompt ``[root@searx-archlinux ...]`` signals, that you are the root user in
the searx-container. To debug the running SearXNG instance use:
.. tabs::
.. group-tab:: root@searx-archlinux
.. code:: sh
$ ./utils/searx.sh inspect service
...
use [CTRL-C] to stop monitoring the log
...
Back in the browser on your desktop open the service http://10.174.184.156/searx
and run your application tests while the debug log is shown in the terminal from
above. You can stop monitoring using ``CTRL-C``, this also disables the *"debug
option"* in SearXNG's settings file and restarts the SearXNG uwsgi application.
To debug services from filtron and morty analogous use:
.. tabs::
.. group-tab:: root@searx-archlinux
.. code:: sh
$ ./utils/filtron.sh inspect service
$ ./utils/morty.sh inspect service
Another point we have to notice is that each service (:ref:`SearXNG <searx.sh>`,
:ref:`filtron <filtron.sh>` and :ref:`morty <morty.sh>`) runs under dedicated
system user account with the same name (compare :ref:`create searxng user`). To
get a shell from theses accounts, simply call one of the scripts:
.. tabs::
.. group-tab:: root@searx-archlinux
.. code:: sh
$ ./utils/searx.sh shell
$ ./utils/filtron.sh shell
$ ./utils/morty.sh shell
To get in touch, open a shell from the service user (searx@searx-archlinux):
.. tabs::
.. group-tab:: desktop
.. code:: sh
$ sudo -H ./utils/lxc.sh cmd searx-archlinux \
./utils/searx.sh shell
// exit with [CTRL-D]
(searx-pyenv) [searx@searx-archlinux ~]$ ...
The prompt ``[searx@searx-archlinux]`` signals that you are logged in as system
user ``searx`` in the ``searx-archlinux`` container and the python *virtualenv*
``(searx-pyenv)`` environment is activated.
.. tabs::
.. group-tab:: searx@searx-archlinux
.. code:: sh
(searx-pyenv) [searx@searx-archlinux ~]$ pwd
/usr/local/searx
Wrap production into developer suite
====================================
In this section we will see how to change the *"Fully functional SearXNG suite"*
from a LXC container (which is quite ready for production) into a developer
suite. For this, we have to keep an eye on the :ref:`installation basic`:
- SearXNG setup in: ``/etc/searxng/settings.yml``
- SearXNG user's home: ``/usr/local/searx``
- virtualenv in: ``/usr/local/searx/searx-pyenv``
- SearXNG software in: ``/usr/local/searx/searx-src``
With the use of the :ref:`searx.sh` the SearXNG service was installed as
:ref:`uWSGI application <searxng uwsgi>`. To maintain this service, we can use
``systemctl`` (compare :ref:`service architectures on distributions <uwsgi
configuration>`).
.. tabs::
.. group-tab:: desktop
.. code:: sh
$ sudo -H ./utils/lxc.sh cmd searx-archlinux \
systemctl stop uwsgi@searx
With the command above, we stopped the SearXNG uWSGI-App in the archlinux
container.
The uWSGI-App for the archlinux dsitros is configured in
:origin:`utils/templates/etc/uwsgi/apps-archlinux/searxng.ini`, from where at
least you should attend the settings of ``uid``, ``chdir``, ``env`` and
``http``::
env = SEARXNG_SETTINGS_PATH=/etc/searxng/settings.yml
http = 127.0.0.1:8888
chdir = /usr/local/searx/searx-src/searx
virtualenv = /usr/local/searx/searx-pyenv
pythonpath = /usr/local/searx/searx-src
If you have read the :ref:`"Good to know section" <lxc.sh>` you remember, that
each container shares the root folder of the repository and the command
``utils/lxc.sh cmd`` handles relative path names **transparent**. To wrap the
SearXNG installation into a developer one, we simple have to create a smylink to
the **transparent** reposetory from the desktop. Now lets replace the
repository at ``searx-src`` in the container with the working tree from outside
of the container:
.. tabs::
.. group-tab:: container becomes a developer suite
.. code:: sh
$ sudo -H ./utils/lxc.sh cmd searx-archlinux \
mv /usr/local/searx/searx-src /usr/local/searx/searx-src.old
$ sudo -H ./utils/lxc.sh cmd searx-archlinux \
ln -s /share/searx/ /usr/local/searx/searx-src
Now we can develop as usual in the working tree of our desktop system. Every
time the software was changed, you have to restart the SearXNG service (in the
conatiner):
.. tabs::
.. group-tab:: desktop
.. code:: sh
$ sudo -H ./utils/lxc.sh cmd searx-archlinux \
systemctl restart uwsgi@searx
Remember: :ref:`working in containers` .. here are just some examples from my
daily usage:
.. tabs::
.. group-tab:: desktop
To *inspect* the SearXNG instance (already described above):
.. code:: sh
$ sudo -H ./utils/lxc.sh cmd searx-archlinux \
./utils/searx.sh inspect service
Run :ref:`makefile`, e.g. to test inside the container:
.. code:: sh
$ sudo -H ./utils/lxc.sh cmd searx-archlinux \
make test
To install all prerequisites needed for a :ref:`buildhosts`:
.. code:: sh
$ sudo -H ./utils/lxc.sh cmd searx-archlinux \
./utils/searx.sh install buildhost
To build the docs on a buildhost :ref:`buildhosts`:
.. code:: sh
$ sudo -H ./utils/lxc.sh cmd searx-archlinux \
make docs.html
.. _lxcdev summary:
Summary
=======
We build up a fully functional SearXNG suite in a archlinux container:
.. code:: sh
$ sudo -H ./utils/lxc.sh install suite searx-archlinux
To access HTTP from the desktop we installed nginx for the services inside the
conatiner:
.. tabs::
.. group-tab:: [root@searx-archlinux]
.. code:: sh
$ ./utils/filtron.sh nginx install
$ ./utils/morty.sh nginx install
To wrap the suite into a developer one, we created a symbolic link to the
repository which is shared **transparent** from the desktop's file system into
the container :
.. tabs::
.. group-tab:: [root@searx-archlinux]
.. code:: sh
$ mv /usr/local/searx/searx-src /usr/local/searx/searx-src.old
$ ln -s /share/searx/ /usr/local/searx/searx-src
$ systemctl restart uwsgi@searx
To get information about the searxNG suite in the archlinux container we can
use:
.. tabs::
.. group-tab:: desktop
.. code:: sh
$ sudo -H ./utils/lxc.sh show suite searx-archlinux
...
[searx-archlinux] INFO: (eth0) filtron: http://10.174.184.156:4004/ http://10.174.184.156/searx
[searx-archlinux] INFO: (eth0) morty: http://10.174.184.156:3000/
[searx-archlinux] INFO: (eth0) docs.live: http://10.174.184.156:8080/
[searx-archlinux] INFO: (eth0) IPv6: http://[fd42:573b:e0b3:e97e:216:3eff:fea5:9b65]
...

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.. _makefile:
========
Makefile
========
.. _gnu-make: https://www.gnu.org/software/make/manual/make.html#Introduction
.. sidebar:: build environment
Before looking deeper at the targets, first read about :ref:`make
install`.
To install system requirements follow :ref:`buildhosts`.
All relevant build tasks are implemented in :origin:`manage` and for CI or
IDE integration a small ``Makefile`` wrapper is available. If you are not
familiar with Makefiles, we recommend to read gnu-make_ introduction.
The usage is simple, just type ``make {target-name}`` to *build* a target.
Calling the ``help`` target gives a first overview (``make help``):
.. program-output:: bash -c "cd ..; make --no-print-directory help"
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
.. _make install:
Python environment (``make install``)
=====================================
.. sidebar:: activate environment
``source ./local/py3/bin/activate``
We do no longer need to build up the virtualenv manually. Jump into your git
working tree and release a ``make install`` to get a virtualenv with a
*developer install* of SearXNG (:origin:`setup.py`). ::
$ cd ~/searx-clone
$ make install
PYENV [virtualenv] installing ./requirements*.txt into local/py3
...
PYENV OK
PYENV [install] pip install -e 'searx[test]'
...
Successfully installed argparse-1.4.0 searx
BUILDENV INFO:searx:load the default settings from ./searx/settings.yml
BUILDENV INFO:searx:Initialisation done
BUILDENV build utils/brand.env
If you release ``make install`` multiple times the installation will only
rebuild if the sha256 sum of the *requirement files* fails. With other words:
the check fails if you edit the requirements listed in
:origin:`requirements-dev.txt` and :origin:`requirements.txt`). ::
$ make install
PYENV OK
PYENV [virtualenv] requirements.sha256 failed
[virtualenv] - 6cea6eb6def9e14a18bf32f8a3e... ./requirements-dev.txt
[virtualenv] - 471efef6c73558e391c3adb35f4... ./requirements.txt
...
PYENV [virtualenv] installing ./requirements*.txt into local/py3
...
PYENV OK
PYENV [install] pip install -e 'searx[test]'
...
Successfully installed argparse-1.4.0 searx
BUILDENV INFO:searx:load the default settings from ./searx/settings.yml
BUILDENV INFO:searx:Initialisation done
BUILDENV build utils/brand.env
.. sidebar:: drop environment
To get rid of the existing environment before re-build use :ref:`clean target
<make clean>` first.
If you think, something goes wrong with your ./local environment or you change
the :origin:`setup.py` file, you have to call :ref:`make clean`.
.. _make buildenv:
``make buildenv``
=================
Rebuild instance's environment with the modified settings from the
:ref:`settings brand` and :ref:`settings server` section of your
:ref:`settings.yml <settings location>`.
We have all SearXNG setups are centralized in the :ref:`settings.yml` file.
This setup is available as long we are in a *installed instance*. E.g. the
*installed instance* on the server or the *installed developer instance* at
``./local`` (the later one is created by a :ref:`make install <make
install>` or :ref:`make run <make run>`).
Tasks running outside of an *installed instance*, especially those tasks and
scripts running at (pre-) installation time do not have access to the SearXNG
setup (from a *installed instance*). Those tasks need a *build environment*.
The ``make buildenv`` target will update the *build environment* in:
- :origin:`utils/brand.env`
Tasks running outside of an *installed instance*, need the following settings
from the YAML configuration:
- ``SEARXNG_URL`` from :ref:`server.base_url <settings server>` (aka
``PUBLIC_URL``)
- ``SEARXNG_BIND_ADDRESS`` from :ref:`server.bind_address <settings server>`
- ``SEARXNG_PORT`` from :ref:`server.port <settings server>`
.. _make node.env:
Node.js environment (``make node.env``)
=======================================
.. _Node.js: https://nodejs.org/
.. _nvm: https://github.com/nvm-sh
.. _npm: https://www.npmjs.com/
.. jinja:: searx
Node.js_ version {{version.node}} or higher is required to build the themes.
If the requirement is not met, the build chain uses nvm_ (Node Version
Manager) to install latest LTS of Node.js_ locally: there is no need to
install nvm_ or npm_ on your system.
Use ``make nvm.status`` to get the current status of you Node.js_ and nvm_ setup.
Here is the output you will typically get on a Ubuntu 20.04 system which serves
only a `no longer active <https://nodejs.org/en/about/releases/>`_ Release
`Node.js v10.19.0 <https://packages.ubuntu.com/focal/nodejs>`_.
::
$ make nvm.status
INFO: Node.js is installed at /usr/bin/node
INFO: Node.js is version v10.19.0
WARN: minimal Node.js version is 16.13.0
INFO: npm is installed at /usr/bin/npm
INFO: npm is version 6.14.4
WARN: NVM is not installed
INFO: to install NVM and Node.js (LTS) use: manage nvm install --lts
To install you can also use :ref:`make nvm.nodejs`
.. _make nvm.nodejs:
``make nvm.nodejs``
===================
Install latest Node.js_ LTS locally (uses nvm_)::
$ make nvm.nodejs
INFO: install (update) NVM at /share/searxng/.nvm
INFO: clone: https://github.com/nvm-sh/nvm.git
...
Downloading and installing node v16.13.0...
...
INFO: Node.js is installed at searxng/.nvm/versions/node/v16.13.0/bin/node
INFO: Node.js is version v16.13.0
INFO: npm is installed at searxng/.nvm/versions/node/v16.13.0/bin/npm
INFO: npm is version 8.1.0
INFO: NVM is installed at searxng/.nvm
.. _make run:
``make run``
============
To get up a running a developer instance simply call ``make run``. This enables
*debug* option in :origin:`searx/settings.yml`, starts a ``./searx/webapp.py``
instance and opens the URL in your favorite WEB browser (:man:`xdg-open`)::
$ make run
Changes to theme's HTML templates (jinja2) are instant. Changes to the CSS & JS
sources of the theme need to be rebuild. You can do that by running::
$ make themes.all
Alternatively to ``themes.all`` you can run *live builds* of the theme you are
modify::
$ LIVE_THEME=simple make run
.. _make clean:
``make clean``
==============
Drops all intermediate files, all builds, but keep sources untouched. Before
calling ``make clean`` stop all processes using the :ref:`make install` or
:ref:`make node.env`. ::
$ make clean
CLEAN pyenv
PYENV [virtualenv] drop local/py3
CLEAN docs -- build/docs dist/docs
CLEAN themes -- locally installed npm dependencies
...
CLEAN test stuff
CLEAN common files
.. _make docs:
``make docs docs.autobuild docs.clean``
=======================================
We describe the usage of the ``doc.*`` targets in the :ref:`How to contribute /
Documentation <contrib docs>` section. If you want to edit the documentation
read our :ref:`make docs.live` section. If you are working in your own brand,
adjust your :ref:`settings global`.
.. _make docs.gh-pages:
``make docs.gh-pages``
======================
To deploy on github.io first adjust your :ref:`settings global`. For any
further read :ref:`deploy on github.io`.
.. _make test:
``make test``
=============
Runs a series of tests: :ref:`make test.pylint`, ``test.pep8``, ``test.unit``
and ``test.robot``. You can run tests selective, e.g.::
$ make test.pep8 test.unit test.sh
TEST test.pep8 OK
...
TEST test.unit OK
...
TEST test.sh OK
.. _make test.shell:
``make test.shell``
===================
:ref:`sh lint` / if you have changed some bash scripting run this test before
commit.
.. _make test.pylint:
``make test.pylint``
====================
.. _Pylint: https://www.pylint.org/
Pylint_ is known as one of the best source-code, bug and quality checker for the
Python programming language. The pylint profile used in the SearXNG project is
found in project's root folder :origin:`.pylintrc`.
.. _make search.checker:
``search.checker.{engine name}``
================================
To check all engines::
make search.checker
To check a engine with whitespace in the name like *google news* replace space
by underline::
make search.checker.google_news
To see HTTP requests and more use SEARXNG_DEBUG::
make SEARXNG_DEBUG=1 search.checker.google_news
.. _3xx: https://en.wikipedia.org/wiki/List_of_HTTP_status_codes#3xx_redirection
To filter out HTTP redirects (3xx_)::
make SEARXNG_DEBUG=1 search.checker.google_news | grep -A1 "HTTP/1.1\" 3[0-9][0-9]"
...
Engine google news Checking
https://news.google.com:443 "GET /search?q=life&hl=en&lr=lang_en&ie=utf8&oe=utf8&ceid=US%3Aen&gl=US HTTP/1.1" 302 0
https://news.google.com:443 "GET /search?q=life&hl=en-US&lr=lang_en&ie=utf8&oe=utf8&ceid=US:en&gl=US HTTP/1.1" 200 None
--
https://news.google.com:443 "GET /search?q=computer&hl=en&lr=lang_en&ie=utf8&oe=utf8&ceid=US%3Aen&gl=US HTTP/1.1" 302 0
https://news.google.com:443 "GET /search?q=computer&hl=en-US&lr=lang_en&ie=utf8&oe=utf8&ceid=US:en&gl=US HTTP/1.1" 200 None
--
``make pybuild``
================
.. _PyPi: https://pypi.org/
.. _twine: https://twine.readthedocs.io/en/latest/
Build Python packages in ``./dist/py``::
$ make pybuild
...
BUILD pybuild
running sdist
running egg_info
...
running bdist_wheel
$ ls ./dist
searx-0.18.0-py3-none-any.whl searx-0.18.0.tar.gz
To upload packages to PyPi_, there is also a ``pypi.upload`` target (to test use
``pypi.upload.test``). Since you are not the owner of :pypi:`searx` you will
never need to upload.

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.. _offline engines:
===============
Offline Engines
===============
.. sidebar:: offline engines
- :ref:`demo offline engine`
- :ref:`sql engines`
- :ref:`engine command`
- :origin:`Redis <searx/engines/redis_server.py>`
To extend the functionality of SearXNG, offline engines are going to be
introduced. An offline engine is an engine which does not need Internet
connection to perform a search and does not use HTTP to communicate.
Offline engines can be configured, by adding those to the `engines` list of
:origin:`settings.yml <searx/settings.yml>`. An example skeleton for offline
engines can be found in :ref:`demo offline engine` (:origin:`demo_offline.py
<searx/engines/demo_offline.py>`).
Programming Interface
=====================
:py:func:`init(engine_settings=None) <searx.engines.demo_offline.init>`
All offline engines can have their own init function to setup the engine before
accepting requests. The function gets the settings from settings.yml as a
parameter. This function can be omitted, if there is no need to setup anything
in advance.
:py:func:`search(query, params) <searx.engines.demo_offline.searc>`
Each offline engine has a function named ``search``. This function is
responsible to perform a search and return the results in a presentable
format. (Where *presentable* means presentable by the selected result
template.)
The return value is a list of results retrieved by the engine.
Engine representation in ``/config``
If an engine is offline, the attribute ``offline`` is set to ``True``.
.. _offline requirements:
Extra Dependencies
==================
If an offline engine depends on an external tool, SearXNG does not install it by
default. When an administrator configures such engine and starts the instance,
the process returns an error with the list of missing dependencies. Also,
required dependencies will be added to the comment/description of the engine, so
admins can install packages in advance.
If there is a need to install additional packages in *Python's Virtual
Environment* of your SearXNG instance you need to switch into the environment
(:ref:`searx-src`) first, for this you can use :ref:`searx.sh`::
$ sudo utils/searx.sh shell
(searx-pyenv)$ pip install ...
Private engines (Security)
==========================
To limit the access to offline engines, if an instance is available publicly,
administrators can set token(s) for each of the :ref:`private engines`. If a
query contains a valid token, then SearXNG performs the requested private
search. If not, requests from an offline engines return errors.
Acknowledgement
===============
This development was sponsored by `Search and Discovery Fund
<https://nlnet.nl/discovery>`_ of `NLnet Foundation <https://nlnet.nl/>`_ .

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.. _dev plugin:
=======
Plugins
=======
.. sidebar:: Further reading ..
- :ref:`plugins generic`
Plugins can extend or replace functionality of various components of searx.
Example plugin
==============
.. code:: python
name = 'Example plugin'
description = 'This plugin extends the suggestions with the word "example"'
default_on = False # disabled by default
js_dependencies = tuple() # optional, list of static js files
css_dependencies = tuple() # optional, list of static css files
# attach callback to the post search hook
# request: flask request object
# ctx: the whole local context of the post search hook
def post_search(request, search):
search.result_container.suggestions.add('example')
return True
External plugins
================
External plugins are standard python modules implementing all the requirements of the standard plugins.
Plugins can be enabled by adding them to :ref:`settings.yml`'s ``plugins`` section.
Example external plugin can be found `here <https://github.com/asciimoo/searx_external_plugin_example>`_.
Register your plugin
====================
To enable your plugin register your plugin in
searx > plugin > __init__.py.
And at the bottom of the file add your plugin like.
``plugins.register(name_of_python_file)``
Plugin entry points
===================
Entry points (hooks) define when a plugin runs. Right now only three hooks are
implemented. So feel free to implement a hook if it fits the behaviour of your
plugin. A plugin doesn't need to implement all the hooks.
.. py:function:: pre_search(request, search) -> bool
Runs BEFORE the search request.
`search.result_container` can be changed.
Return a boolean:
* True to continue the search
* False to stop the search
:param flask.request request:
:param searx.search.SearchWithPlugins search:
:return: False to stop the search
:rtype: bool
.. py:function:: post_search(request, search) -> None
Runs AFTER the search request.
:param flask.request request: Flask request.
:param searx.search.SearchWithPlugins search: Context.
.. py:function:: on_result(request, search, result) -> bool
Runs for each result of each engine.
`result` can be changed.
If `result["url"]` is defined, then `result["parsed_url"] = urlparse(result['url'])`
.. warning::
`result["url"]` can be changed, but `result["parsed_url"]` must be updated too.
Return a boolean:
* True to keep the result
* False to remove the result
:param flask.request request:
:param searx.search.SearchWithPlugins search:
:param typing.Dict result: Result, see - :ref:`engine results`
:return: True to keep the result
:rtype: bool

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.. _devquickstart:
======================
Development Quickstart
======================
.. _npm: https://www.npmjs.com/
.. _Node.js: https://nodejs.org/
SearXNG loves developers, just clone and start hacking. All the rest is done for
you simply by using :ref:`make <makefile>`.
.. code:: sh
git clone https://github.com/searxng/searxng.git searxng
Here is how a minimal workflow looks like:
1. *start* hacking
2. *run* your code: :ref:`make run`
3. *test* your code: :ref:`make test`
If you think at some point something fails, go back to *start*. Otherwise,
choose a meaningful commit message and we are happy to receive your pull
request. To not end in *wild west* we have some directives, please pay attention
to our ":ref:`how to contribute`" guideline.
If you implement themes, you will need to setup a :ref:`make node.env` once:
.. code:: sh
make node.env
Before you call *make run* (2.), you need to compile the modified styles and
JavaScript:
.. code:: sh
make themes.all
Alternatively you can also compile selective the theme you have modified,
e.g. the *simple* theme.
.. code:: sh
make themes.simple
.. tip::
To get live builds while modifying CSS & JS use: ``LIVE_THEME=simple make run``
If you finished your *tests* you can start to commit your changes. To separate
the modified source code from the build products first run:
.. code:: sh
make static.build.restore
This will restore the old build products and only your changes of the code
remain in the working tree which can now be added & commited. When all sources
are commited, you can commit the build products simply by:
.. code:: sh
make static.build.commit
Commiting the build products should be the last step, just before you send us
your PR. There is also a make target to rewind this last build commit:
.. code:: sh
make static.build.drop

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.. _search API:
==========
Search API
==========
The search supports both ``GET`` and ``POST``.
Furthermore, two endpoints ``/`` and ``/search`` are available for querying.
``GET /``
``GET /search``
Parameters
==========
.. sidebar:: Further reading ..
- :ref:`engines-dev`
- :ref:`settings.yml`
- :ref:`configured engines`
``q`` : required
The search query. This string is passed to external search services. Thus,
SearXNG supports syntax of each search service. For example, ``site:github.com
SearXNG`` is a valid query for Google. However, if simply the query above is
passed to any search engine which does not filter its results based on this
syntax, you might not get the results you wanted.
See more at :ref:`search-syntax`
``categories`` : optional
Comma separated list, specifies the active search categories
``engines`` : optional
Comma separated list, specifies the active search engines.
``lang`` : default ``all``
Code of the language.
``pageno`` : default ``1``
Search page number.
``time_range`` : optional
[ ``day``, ``month``, ``year`` ]
Time range of search for engines which support it. See if an engine supports
time range search in the preferences page of an instance.
``format`` : optional
[ ``json``, ``csv``, ``rss`` ]
Output format of results.
``results_on_new_tab`` : default ``0``
[ ``0``, ``1`` ]
Open search results on new tab.
``image_proxy`` : default ``False``
[ ``True``, ``False`` ]
Proxy image results through SearXNG.
``autocomplete`` : default *empty*
[ ``google``, ``dbpedia``, ``duckduckgo``, ``startpage``, ``wikipedia`` ]
Service which completes words as you type.
``safesearch`` : default ``None``
[ ``0``, ``1``, ``None`` ]
Filter search results of engines which support safe search. See if an engine
supports safe search in the preferences page of an instance.
``theme`` : default ``simple``
[ ``simple`` ]
Theme of instance.
Please note, available themes depend on an instance. It is possible that an
instance administrator deleted, created or renamed themes on their instance.
See the available options in the preferences page of the instance.
``enabled_plugins`` : optional
List of enabled plugins.
:default: ``HTTPS_rewrite``, ``Self_Informations``,
``Search_on_category_select``, ``Tracker_URL_remover``
:values: ``DOAI_rewrite``, ``HTTPS_rewrite``, ``Infinite_scroll``,
``Vim-like_hotkeys``, ``Self_Informations``, ``Tracker_URL_remover``,
``Search_on_category_select``, ``Hostname_replace``
``disabled_plugins``: optional
List of disabled plugins.
:default: ``DOAI_rewrite``, ``Infinite_scroll``, ``Vim-like_hotkeys``, ``Hostname_replace``
:values: ``DOAI_rewrite``, ``HTTPS_rewrite``, ``Infinite_scroll``,
``Vim-like_hotkeys``, ``Self_Informations``, ``Tracker_URL_remover``,
``Search_on_category_select``, ``Hostname_replace``
``enabled_engines`` : optional : *all* :origin:`engines <searx/engines>`
List of enabled engines.
``disabled_engines`` : optional : *all* :origin:`engines <searx/engines>`
List of disabled engines.

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.. _searxng_extra:
=============================
Tooling box ``searxng_extra``
=============================
In the folder :origin:`searxng_extra/` we maintain some tools useful for CI and
developers.
.. toctree::
:maxdepth: 2
:caption: Contents
update
standalone_searx.py

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.. _standalone_searx.py:
=====================================
``searxng_extra/standalone_searx.py``
=====================================
.. automodule:: searxng_extra.standalone_searx
:members:

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=========================
``searxng_extra/update/``
=========================
:origin:`[source] <searxng_extra/update/__init__.py>`
Scripts to update static data in :origin:`searx/data/`
.. _update_ahmia_blacklist.py:
``update_ahmia_blacklist.py``
=============================
:origin:`[source] <searxng_extra/update/update_ahmia_blacklist.py>`
.. automodule:: searxng_extra.update.update_ahmia_blacklist
:members:
``update_currencies.py``
========================
:origin:`[source] <searxng_extra/update/update_currencies.py>`
.. automodule:: searxng_extra.update.update_currencies
:members:
``update_engine_descriptions.py``
=================================
:origin:`[source] <searxng_extra/update/update_engine_descriptions.py>`
.. automodule:: searxng_extra.update.update_engine_descriptions
:members:
``update_external_bangs.py``
============================
:origin:`[source] <searxng_extra/update/update_external_bangs.py>`
.. automodule:: searxng_extra.update.update_external_bangs
:members:
``update_firefox_version.py``
=============================
:origin:`[source] <searxng_extra/update/update_firefox_version.py>`
.. automodule:: searxng_extra.update.update_firefox_version
:members:
``update_languages.py``
=======================
:origin:`[source] <searxng_extra/update/update_languages.py>`
.. automodule:: searxng_extra.update.update_languages
:members:
``update_osm_keys_tags.py``
===========================
:origin:`[source] <searxng_extra/update/update_osm_keys_tags.py>`
.. automodule:: searxng_extra.update.update_osm_keys_tags
:members:
``update_pygments.py``
======================
:origin:`[source] <searxng_extra/update/update_pygments.py>`
.. automodule:: searxng_extra.update.update_pygments
:members:
``update_wikidata_units.py``
============================
:origin:`[source] <searxng_extra/update/update_wikidata_units.py>`
.. automodule:: searxng_extra.update.update_wikidata_units
:members:

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.. _translation:
===========
Translation
===========
.. _weblate.bubu1.eu: https://weblate.bubu1.eu/projects/searxng/
.. _Weblate: https://docs.weblate.org
.. _translations branch: https://github.com/searxng/searxng/tree/translations
.. _orphan branch: https://git-scm.com/docs/git-checkout#Documentation/git-checkout.txt---orphanltnewbranchgt
.. _Weblate repository: https://weblate.bubu1.eu/projects/searxng/searxng/#repository
.. _wlc: https://docs.weblate.org/en/latest/wlc.html
.. |translated| image:: https://weblate.bubu1.eu/widgets/searxng/-/searxng/svg-badge.svg
:target: https://weblate.bubu1.eu/projects/searxng/
.. sidebar:: |translated|
- :ref:`searx.babel_extract`
- Weblate_
- SearXNG `translations branch`_
- SearXNG `Weblate repository`_
- Weblate Client: wlc_
- Babel Command-Line: `pybabel <http://babel.pocoo.org/en/latest/cmdline.html>`_
- `weblate workflow <https://docs.weblate.org/en/latest/workflows.html>`_
Translation takes place on weblate.bubu1.eu_.
Translations which has been added by translators on the weblate.bubu1.eu_ UI are
committed to Weblate's counterpart of the SearXNG *origin* repository which is
located at ``https://weblate.bubu1.eu/git/searxng/searxng``.
There is no need to clone this repository, :ref:`SearXNG Weblate workflow` take
care of the synchronization with the *origin*. To avoid merging commits from
the counterpart directly on the ``master`` branch of *SearXNG origin*, a *pull
request* (PR) is created by this workflow.
Weblate monitors the `translations branch`_, not the ``master`` branch. This
branch is an `orphan branch`_, decoupled from the master branch (we already know
orphan branches from the ``gh-pages``). The `translations branch`_ contains
only the
- ``translation/messages.pot`` and the
- ``translation/*/messages.po`` files, nothing else.
.. _SearXNG Weblate workflow:
.. figure:: translation.svg
SearXNG's PR workflow to be in sync with Weblate
Sync from *origin* to *weblate*: using ``make weblate.push.translations``
For each commit on the ``master`` branch of SearXNG *origin* the GitHub job
:origin:`babel / Update translations branch
<.github/workflows/integration.yml>` checks for updated translations.
Sync from *weblate* to *origin*: using ``make weblate.translations.commit``
Every Friday, the GitHub workflow :origin:`babel / create PR for additons from
weblate <.github/workflows/translations-update.yml>` creates a PR with the
updated translation files:
- ``translation/messages.pot``,
- ``translation/*/messages.po`` and
- ``translation/*/messages.mo``
wlc
===
.. _wlc configuration: https://docs.weblate.org/en/latest/wlc.html#wlc-config
.. _API key: https://weblate.bubu1.eu/accounts/profile/#api
All weblate integration is done by GitHub workflows, but if you want to use wlc_,
copy this content into `wlc configuration`_ in your HOME ``~/.config/weblate``
.. code-block:: ini
[keys]
https://weblate.bubu1.eu/api/ = APIKEY
Replace ``APIKEY`` by your `API key`_.

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==================
Welcome to SearXNG
==================
*Search without being tracked.*
SearXNG is a free internet metasearch engine which aggregates results from more
than 70 search services. Users are neither tracked nor profiled. Additionally,
SearXNG can be used over Tor for online anonymity.
Get started with SearXNG by using one of the instances listed at searx.space_.
If you don't trust anyone, you can set up your own, see :ref:`installation`.
.. sidebar:: Features
- Self hosted
- No user tracking
- No user profiling
- About 70 supported search engines
- Easy integration with any search engine
- Cookies are not used by default
- Secure, encrypted connections (HTTPS/SSL)
.. sidebar:: info
SearXNG development has been started in the middle of 2021 as a fork of the
searx project.
.. toctree::
:maxdepth: 2
:caption: Contents
user/index
own-instance
admin/index
dev/index
utils/index
src/index
.. _searx.space: https://searx.space

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===========================
Why use a private instance?
===========================
*"Is it worth to run my own instance?"*
\.\. is a common question among SearXNG users. Before answering this question,
see what options a SearXNG user has.
Public instances are open to everyone who has access to its URL. Usually, these
are operated by unknown parties (from the users' point of view). Private
instances can be used by a select group of people. It is for example a SearXNG of
group of friends or a company which can be accessed through VPN. Also it can be
single user one which runs on the user's laptop.
To gain more insight on how these instances work let's dive into how SearXNG
protects its users.
How does SearXNG protect privacy?
=================================
SearXNG protects the privacy of its users in multiple ways regardless of the type
of the instance (private, public). Removal of private data from search requests
comes in three forms:
1. removal of private data from requests going to search services
2. not forwarding anything from a third party services through search services
(e.g. advertisement)
3. removal of private data from requests going to the result pages
Removing private data means not sending cookies to external search engines and
generating a random browser profile for every request. Thus, it does not matter
if a public or private instance handles the request, because it is anonymized in
both cases. IP addresses will be the IP of the instance. But SearXNG can be
configured to use proxy or Tor. `Result proxy
<https://github.com/asciimoo/morty>`__ is supported, too.
SearXNG does not serve ads or tracking content unlike most search services. So
private data is not forwarded to third parties who might monetize it. Besides
protecting users from search services, both referring page and search query are
hidden from visited result pages.
What are the consequences of using public instances?
----------------------------------------------------
If someone uses a public instance, they have to trust the administrator of that
instance. This means that the user of the public instance does not know whether
their requests are logged, aggregated and sent or sold to a third party.
Also, public instances without proper protection are more vulnerable to abusing
the search service, In this case the external service in exchange returns
CAPTCHAs or bans the IP of the instance. Thus, search requests return less
results.
I see. What about private instances?
------------------------------------
If users run their :ref:`own instances <installation>`, everything is in their
control: the source code, logging settings and private data. Unknown instance
administrators do not have to be trusted.
Furthermore, as the default settings of their instance is editable, there is no
need to use cookies to tailor SearXNG to their needs. So preferences will not be
reset to defaults when clearing browser cookies. As settings are stored on
their computer, it will not be accessible to others as long as their computer is
not compromised.
Conclusion
==========
Always use an instance which is operated by people you trust. The privacy
features of SearXNG are available to users no matter what kind of instance they
use.
If someone is on the go or just wants to try SearXNG for the first time public
instances are the best choices. Additionally, public instance are making a
world a better place, because those who cannot or do not want to run an
instance, have access to a privacy respecting search service.

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===========
Source-Code
===========
This is a partial documentation of our source code. We are not aim to document
every item from the source code, but we will add documentation when requested.
.. toctree::
:maxdepth: 2
:caption: Contents
:glob:
searx.*

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.. _searx.babel_extract:
===============================
Custom message extractor (i18n)
===============================
.. automodule:: searx.babel_extract
:members:

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.. _demo offline engine:
===================
Demo Offline Engine
===================
.. automodule:: searx.engines.demo_offline
:members:

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.. _demo online engine:
==================
Demo Online Engine
==================
.. automodule:: searx.engines.demo_online
:members:

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.. _google engines:
==============
Google Engines
==============
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
.. _google API:
google API
==========
.. _Query Parameter Definitions:
https://developers.google.com/custom-search/docs/xml_results#WebSearch_Query_Parameter_Definitions
For detailed description of the *REST-full* API see: `Query Parameter
Definitions`_. Not all parameters can be appied and some engines are *special*
(e.g. :ref:`google news engine`).
.. _google web engine:
Google WEB
==========
.. automodule:: searx.engines.google
:members:
.. _google images engine:
Google Images
=============
.. automodule:: searx.engines.google_images
:members:
.. _google videos engine:
Google Videos
=============
.. automodule:: searx.engines.google_videos
:members:
.. _google news engine:
Google News
===========
.. automodule:: searx.engines.google_news
:members:

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.. _load_engines:
============
Load Engines
============
.. automodule:: searx.engines
:members:

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.. _tineye engine:
======
Tineye
======
.. automodule:: searx.engines.tineye
:members:

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.. _yahoo engine:
============
Yahoo Engine
============
.. automodule:: searx.engines.yahoo
:members:

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.. _searx.infopage:
================
Online ``/info``
================
.. automodule:: searx.infopage
:members:

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.. _searx.locales:
=======
Locales
=======
.. automodule:: searx.locales
:members:

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.. _limiter plugin:
==============
Limiter Plugin
==============
.. sidebar:: info
The :ref:`limiter plugin` requires a :ref:`Redis <settings redis>` database.
.. automodule:: searx.plugins.limiter
:members:

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.. _searx.redis:
=============
Redis Library
=============
.. automodule:: searx.redislib
:members:

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.. _searx.search:
======
Search
======
.. autoclass:: searx.search.EngineRef
:members:
.. autoclass:: searx.search.SearchQuery
:members:
.. autoclass:: searx.search.Search
.. attribute:: search_query
:type: searx.search.SearchQuery
.. attribute:: result_container
:type: searx.results.ResultContainer
.. automethod:: search() -> searx.results.ResultContainer
.. autoclass:: searx.search.SearchWithPlugins
:members:
.. attribute:: search_query
:type: searx.search.SearchQuery
.. attribute:: result_container
:type: searx.results.ResultContainer
.. attribute:: ordered_plugin_list
:type: typing.List
.. attribute:: request
:type: flask.request
.. automethod:: search() -> searx.results.ResultContainer

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.. _redis db:
========
Redis DB
========
.. automodule:: searx.shared.redisdb
:members:

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.. _searx.utils:
=================================
Utility functions for the engines
=================================
.. automodule:: searx.utils
:members:

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================
User information
================
.. contents:: Contents
:depth: 3
:local:
:backlinks: entry
.. _search-syntax:
.. include:: search-syntax.md
:parser: myst_parser.sphinx_

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.. _filtron.sh:
====================
``utils/filtron.sh``
====================
.. sidebar:: further reading
- :ref:`searxng filtron`
- :ref:`architecture`
- :ref:`installation` (:ref:`nginx <installation nginx>` & :ref:`apache
<installation apache>`)
.. _Go: https://golang.org/
.. _filtron: https://github.com/searxng/filtron
.. _filtron README: https://github.com/searxng/filtron/blob/master/README.md
To simplify installation and maintenance of a filtron instance you can use the
script :origin:`utils/filtron.sh`. In most cases you will install filtron_
simply by running the command:
.. code:: bash
sudo -H ./utils/filtron.sh install all
The script adds a ``${SERVICE_USER}`` (default:``filtron``) and installs filtron_
into this user account:
#. Create a separated user account (``filtron``).
#. Download and install Go_ binary in user's $HOME (``~filtron``).
#. Install filtron with the package management from Go_ (``go get -v -u
github.com/searxng/filtron``)
#. Setup a proper rule configuration :origin:`[ref]
<utils/templates/etc/filtron/rules.json>` (``/etc/filtron/rules.json``).
#. Setup a systemd service unit :origin:`[ref]
<utils/templates/lib/systemd/system/filtron.service>`
(``/lib/systemd/system/filtron.service``).
Create user
===========
.. kernel-include:: $DOCS_BUILD/includes/filtron.rst
:start-after: START create user
:end-before: END create user
Install go
==========
.. kernel-include:: $DOCS_BUILD/includes/filtron.rst
:start-after: START install go
:end-before: END install go
Install filtron
===============
Install :origin:`rules.json <utils/templates/etc/filtron/rules.json>` at
``/etc/filtron/rules.json`` (see :ref:`Sample configuration of filtron`) and
install filtron software and systemd unit:
.. kernel-include:: $DOCS_BUILD/includes/filtron.rst
:start-after: START install filtron
:end-before: END install filtron
.. kernel-include:: $DOCS_BUILD/includes/filtron.rst
:start-after: START install systemd unit
:end-before: END install systemd unit
.. _filtron.sh overview:
Overview
========
The ``--help`` output of the script is largely self-explanatory
(:ref:`toolboxing common`):
.. program-output:: ../utils/filtron.sh --help

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.. _searx_utils:
.. _toolboxing:
===================
Admin's tooling box
===================
In the folder :origin:`utils/` we maintain some tools useful for administrators.
.. toctree::
:maxdepth: 2
:caption: Contents
searx.sh
filtron.sh
morty.sh
lxc.sh
.. _toolboxing common:
Common commands & environment
=============================
Scripts to maintain services often dispose of common commands and environments.
``shell`` : command
Opens a shell from the service user ``${SERVICE_USSR}``, very helpful for
troubleshooting.
``inspect service`` : command
Shows status and log of the service, most often you have a option to enable
more verbose debug logs. Very helpful for debugging, but be careful not to
enable debugging in a production environment!
``FORCE_TIMEOUT`` : environment
Sets timeout for interactive prompts. If you want to run a script in batch
job, with defaults choices, set ``FORCE_TIMEOUT=0``. By example; to install a
reverse proxy for filtron on all containers of the :ref:`SearXNG suite
<lxc-searx.env>` use ::
sudo -H ./utils/lxc.sh cmd -- FORCE_TIMEOUT=0 ./utils/filtron.sh apache install
.. _toolboxing setup:
Tooling box setup
=================
The main setup is done in the :origin:`.config.sh` (read also :ref:`settings
global`).
.. literalinclude:: ../../.config.sh
:language: bash

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.. _snap: https://snapcraft.io
.. _snapcraft LXD: https://snapcraft.io/lxd
.. _LXC/LXD Image Server: https://uk.images.linuxcontainers.org/
.. _LXC: https://linuxcontainers.org/lxc/introduction/
.. _LXD: https://linuxcontainers.org/lxd/introduction/
.. _`LXD@github`: https://github.com/lxc/lxd
.. _archlinux: https://www.archlinux.org/
.. _lxc.sh:
================
``utils/lxc.sh``
================
.. sidebar:: further reading
- snap_, `snapcraft LXD`_
- LXC_, LXD_
- `LXC/LXD Image Server`_
- `LXD@github`_
With the use of *Linux Containers* (LXC_) we can scale our tasks over a stack of
containers, what we call the: *lxc suite*. The *SearXNG suite*
(:origin:`lxc-searx.env <utils/lxc-searx.env>`) is loaded by default, every time
you start the ``lxc.sh`` script (*you do not need to care about*).
Before you can start with containers, you need to install and initiate LXD_
once::
$ snap install lxd
$ lxd init --auto
To make use of the containers from the *SearXNG suite*, you have to build the
:ref:`LXC suite containers <lxc.sh help>` initial. But be warned, **this might
take some time**::
$ sudo -H ./utils/lxc.sh build
A cup of coffee later, your LXC suite is build up and you can run whatever task
you want / in a selected or even in all :ref:`LXC suite containers <lxc.sh
help>`.
.. hint::
If you see any problems with the internet connectivity of your
containers read section :ref:`internet connectivity docker`.
If you do not want to build all containers, **you can build just one**::
$ sudo -H ./utils/lxc.sh build searx-ubu1804
*Good to know ...*
Each container shares the root folder of the repository and the command
``utils/lxc.sh cmd`` **handles relative path names transparent**, compare output
of::
$ sudo -H ./utils/lxc.sh cmd -- ls -la Makefile
...
In the containers, you can run what ever you want, e.g. to start a bash use::
$ sudo -H ./utils/lxc.sh cmd searx-ubu1804 bash
INFO: [searx-ubu1804] bash
root@searx-ubu1804:/share/searx#
If there comes the time you want to **get rid off all** the containers and
**clean up local images** just type::
$ sudo -H ./utils/lxc.sh remove
$ sudo -H ./utils/lxc.sh remove images
.. _internet connectivity docker:
Internet Connectivity & Docker
==============================
.. sidebar:: further read
- `Docker blocking network of existing LXC containers <https://github.com/docker/for-linux/issues/103>`__
- `Docker and IPtables (fralef.me) <https://fralef.me/docker-and-iptables.html>`__
- `Docker and iptables (docker.com) <https://docs.docker.com/network/iptables/#docker-on-a-router/>`__
There is a conflict in the ``iptables`` setup of Docker & LXC. If you have
docker installed, you may find that the internet connectivity of your LXD
containers no longer work.
Whenever docker is started (reboot) it sets the iptables policy for the
``FORWARD`` chain to ``DROP`` `[ref]
<https://docs.docker.com/network/iptables/#docker-on-a-router>`__::
$ sudo -H iptables-save | grep FORWARD
:FORWARD ACCEPT [7048:7851230]
:FORWARD DROP [7048:7851230]
A handy solution of this problem might be to reset the policy for the
``FORWARD`` chain after the network has been initialized. For this create a
file in the ``if-up`` section of the network (``/etc/network/if-up.d/iptable``)
and insert the following lines::
#!/bin/sh
iptables -F FORWARD
iptables -P FORWARD ACCEPT
Don't forget to set the execution bit::
sudo chmod ugo+x /etc/network/if-up.d/iptable
Reboot your system and check the iptables rules::
$ sudo -H iptables-save | grep FORWARD
:FORWARD ACCEPT [7048:7851230]
:FORWARD ACCEPT [7048:7851230]
.. _lxc.sh install suite:
Install suite
=============
To install the complete :ref:`SearXNG suite (includes searx, morty & filtron)
<lxc-searx.env>` into all LXC_ use::
$ sudo -H ./utils/lxc.sh install suite
The command above installs a SearXNG suite (see :ref:`installation scripts`). To
get the IP (URL) of the filtron service in the containers use ``show suite``
command. To test instances from containers just open the URLs in your
WEB-Browser::
$ sudo ./utils/lxc.sh show suite | grep filtron
[searx-ubu1604] INFO: (eth0) filtron: http://n.n.n.246:4004/ http://n.n.n.246/searx
[searx-ubu1804] INFO: (eth0) filtron: http://n.n.n.147:4004/ http://n.n.n.147/searx
[searx-ubu1910] INFO: (eth0) filtron: http://n.n.n.140:4004/ http://n.n.n.140/searx
[searx-ubu2004] INFO: (eth0) filtron: http://n.n.n.18:4004/ http://n.n.n.18/searx
[searx-fedora31] INFO: (eth0) filtron: http://n.n.n.46:4004/ http://n.n.n.46/searx
[searx-archlinux] INFO: (eth0) filtron: http://n.n.n.32:4004/ http://n.n.n.32/searx
To :ref:`install a nginx <installation nginx>` reverse proxy for filtron and
morty use (or alternatively use :ref:`apache <installation apache>`)::
sudo -H ./utils/lxc.sh cmd -- FORCE_TIMEOUT=0 ./utils/filtron.sh nginx install
sudo -H ./utils/lxc.sh cmd -- FORCE_TIMEOUT=0 ./utils/morty.sh nginx install
Running commands
================
**Inside containers, you can use make or run scripts** from the
:ref:`toolboxing`. By example: to setup a :ref:`buildhosts` and run the
Makefile target ``test`` in the archlinux_ container::
sudo -H ./utils/lxc.sh cmd searx-archlinux ./utils/searx.sh install buildhost
sudo -H ./utils/lxc.sh cmd searx-archlinux make test
Setup SearXNG buildhost
=======================
You can **install the SearXNG buildhost environment** into one or all containers.
The installation procedure to set up a :ref:`build host<buildhosts>` takes its
time. Installation in all containers will take more time (time for another cup
of coffee).::
sudo -H ./utils/lxc.sh cmd -- ./utils/searx.sh install buildhost
To build (live) documentation inside a archlinux_ container::
sudo -H ./utils/lxc.sh cmd searx-archlinux make docs.clean docs.live
...
[I 200331 15:00:42 server:296] Serving on http://0.0.0.0:8080
To get IP of the container and the port number *live docs* is listening::
$ sudo ./utils/lxc.sh show suite | grep docs.live
...
[searx-archlinux] INFO: (eth0) docs.live: http://n.n.n.12:8080/
.. _lxc.sh help:
Overview
========
The ``--help`` output of the script is largely self-explanatory:
.. program-output:: ../utils/lxc.sh --help
.. _lxc-searx.env:
SearXNG suite
=============
.. literalinclude:: ../../utils/lxc-searx.env
:language: bash

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.. _morty: https://github.com/asciimoo/morty
.. _morty's README: https://github.com/asciimoo/morty
.. _Go: https://golang.org/
.. _morty.sh:
==================
``utils/morty.sh``
==================
.. sidebar:: further reading
- :ref:`architecture`
- :ref:`installation` (:ref:`nginx <installation nginx>` & :ref:`apache
<installation apache>`)
- :ref:`searxng morty`
To simplify installation and maintenance of a morty_ instance you can use the
script :origin:`utils/morty.sh`. In most cases you will install morty_ simply by
running the command:
.. code:: bash
sudo -H ./utils/morty.sh install all
The script adds a ``${SERVICE_USER}`` (default:``morty``) and installs morty_
into this user account:
#. Create a separated user account (``morty``).
#. Download and install Go_ binary in user's $HOME (``~morty``).
#. Install morty_ with the package management from Go_ (``go get -v -u
github.com/asciimoo/morty``)
#. Setup a systemd service unit :origin:`[ref]
<utils/templates/lib/systemd/system/morty.service>`
(``/lib/systemd/system/morty.service``).
.. hint::
To add morty to your SearXNG instance read chapter :ref:`searxng morty`.
Create user
===========
.. kernel-include:: $DOCS_BUILD/includes/morty.rst
:start-after: START create user
:end-before: END create user
Install go
==========
.. kernel-include:: $DOCS_BUILD/includes/morty.rst
:start-after: START install go
:end-before: END install go
Install morty
=============
Install morty software and systemd unit:
.. kernel-include:: $DOCS_BUILD/includes/morty.rst
:start-after: START install morty
:end-before: END install morty
.. kernel-include:: $DOCS_BUILD/includes/morty.rst
:start-after: START install systemd unit
:end-before: END install systemd unit
.. _morty.sh overview:
Overview
========
The ``--help`` output of the script is largely self-explanatory
(:ref:`toolboxing common`):
.. program-output:: ../utils/morty.sh --help

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