From 187617498a0dea17e51950f1ad5e96bb4826367d Mon Sep 17 00:00:00 2001
From: Alexandre Flament <alex@al-f.net>
Date: Sun, 26 Apr 2015 18:58:31 +0200
Subject: [PATCH] Log an error if the ndg-httpsclient, pyopenssl and pyasn1
 packages are not installed. See #298

---
 searx/webapp.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/searx/webapp.py b/searx/webapp.py
index 13c965e0..38780220 100644
--- a/searx/webapp.py
+++ b/searx/webapp.py
@@ -61,6 +61,16 @@ except:
     from sys import exit
     exit(1)
 
+# check if the pyopenssl, ndg-httpsclient, pyasn1 packages are installed.
+# They are needed for SSL connection without trouble, see #298
+try:
+    import OpenSSL.SSL  # NOQA
+    import ndg.httpsclient  # NOQA
+    import pyasn1  # NOQA
+except ImportError:
+    logger.critical("The pyopenssl, ndg-httpsclient, pyasn1 packages have to be installed.\n"
+                    "Some HTTPS connections will failed")
+
 
 logger = logger.getChild('webapp')