Add service node details page

observer.py

@@ -6,6 +6,7 @@ import babel.dates
 import json
 import sys
 import statistics
+from base64 import b32encode, b16decode
 from werkzeug.routing import BaseConverter
 from pygments import highlight
 from pygments.lexers import JsonLexer
@@ -131,6 +132,14 @@ def format_loki(atomic, tag=True, fixed=False, decimals=9, zero=None):
 def bytes_to_hex(b):
     return "".join("{:02x}".format(x) for x in b)
 
+@app.template_filter('base32z')
+def base32z(hex):
+    return b32encode(b16decode(hex, casefold=True)).translate(
+            bytes.maketrans(
+                b'ABCDEFGHIJKLMNOPQRSTUVWXYZ234567',
+                b'ybndrfg8ejkmcpqxot1uwisza345h769')).decode().rstrip('=')
+
+
 @app.after_request
 def add_global_headers(response):
     if 'Cache-Control' not in response.headers:
@@ -171,10 +180,14 @@ def get_sns(sns_future, info_future):
             awaiting_sns.append(sn)
     return awaiting_sns, active_sns, inactive_sns
 
+@app.context_processor
 def template_globals():
     return {
         'config': conf,
-        'server': { 'datetime': datetime.utcnow() }
+        'server': {
+            'datetime': datetime.utcnow(),
+            'timestamp': datetime.utcnow().timestamp(),
+        },
     }
 
 
@@ -294,7 +307,6 @@ def main(refresh=None, page=0, per_page=None, first=None, last=None):
             custom_per_page=custom_per_page,
             mempool=mp,
             refresh=refresh,
-            **template_globals(),
             )
 
 @app.route('/service_nodes')
@@ -308,10 +320,43 @@ def sns():
         active_sns=active,
         awaiting_sns=awaiting,
         inactive_sns=inactive,
-        **template_globals(),
         )
 
 
+@app.route('/sn/<hex64:pubkey>')
+@app.route('/service_node/<hex64:pubkey>')  # For backwards compatibility with old explorer URLs
+def show_sn(pubkey):
+    lmq, lokid = lmq_connection()
+    info = FutureJSON(lmq, lokid, 'rpc.get_info', 1)
+    hfinfo = FutureJSON(lmq, lokid, 'rpc.hard_fork_info', 10)
+    sn = FutureJSON(lmq, lokid, 'rpc.get_service_nodes', 5, cache_key='single', args={
+        "service_node_pubkeys": [pubkey]}).get()
+
+    if 'service_node_states' not in sn or not sn['service_node_states']:
+        return flask.render_template('not_found.html',
+                info=info.get(),
+                hf=hfinfo.get(),
+                type='sn',
+                id=pubkey,
+                )
+
+    sn = sn['service_node_states'][0]
+    # These are a bit non-trivial to properly calculate:
+
+    # Number of staked contributions
+    sn['num_contributions'] = sum(len(x["locked_contributions"]) for x in sn["contributors"])
+    # Number of unfilled, reserved contribution spots:
+    sn['num_reserved_spots'] = sum(x["amount"] < x["reserved"] for x in sn["contributors"])
+    # Available open contribution spots:
+    sn['num_open_spots'] = 0 if sn['total_reserved'] >= sn['staking_requirement'] else max(0, 4 - sn['num_contributions'] - sn['num_reserved_spots'])
+
+    return flask.render_template('sn.html',
+            info=info.get(),
+            hf=hfinfo.get(),
+            sn=sn,
+            )
+
+
 @app.route('/tx/<hex64:txid>')
 @app.route('/tx/<hex64:txid>/<int:more_details>')
 def show_tx(txid, more_details=False):
@@ -329,7 +374,6 @@ def show_tx(txid, more_details=False):
                 info=info.get(),
                 type='tx',
                 id=txid,
-                **template_globals(),
                 )
     tx = txs['txs'][0]
     if 'info' not in tx:
@@ -389,5 +433,4 @@ def show_tx(txid, more_details=False):
             koffset_info=koffset_info,
             block_info=block_info,
             **more_details,
-            **template_globals(),
             )

static/style.css

@@ -27,9 +27,15 @@ h1, h2, h3, h4, h5, h6 {
 .info_list>span>label {
     font-weight: normal;
 }
+.info_list>span>label.omg {
+    font-weight: bold;
+}
 p>label, span>label, h3>label, h4>label, td>label, .info-item>label {
     color: #30a532;
 }
+label.warning {
+    color: red;
+}
 .nowrap-spans {
     text-indent: -2em;
     padding-left: 2em;

templates/include/sn_kcf.html

@@ -2,7 +2,7 @@
 
 {%-set portions_base = 2**64 - 4-%}
 
-<td><a href="/service_node/{{sn.service_node_pubkey}}">{{sn.service_node_pubkey}}</a></td>
+<td><a href="/sn/{{sn.service_node_pubkey}}">{{sn.service_node_pubkey}}</a></td>
 <td title="
 {%-for c in sn.contributors%}{%for lc in c.locked_contributions%}{{c.address | truncate(15)}} ({{lc.amount | loki(decimals=0)}} = {{(lc.amount / sn.staking_requirement * 100) | round(1) | chop0}}%)
 {%endfor%}{%endfor%}"><span class="icon">{{sn.contributors | length}}/4</span></td>

templates/sn.html

@@ -0,0 +1,167 @@
+{% extends "_basic.html" %}
+
+{% block content %}
+
+{%-set portions_base = 2**64 - 4 %}
+{%-set solo_node = sn.portions_for_operator == portions_base %}
+{%-set decommed = sn.funded and not sn.active %}
+
+<div class="sn-details Wrapper">
+  <h2>Service Node Details</h2>
+  <div class="TitleUnderliner"></div>
+  <h4 style="margin:5px"><label>Service Node Public Key:</label> {{sn.service_node_pubkey}}</h4>
+  {%if sn.pubkey_ed25519 %}
+    {%if sn.pubkey_ed25519 != sn.service_node_pubkey%}
+      <h4 style="margin:5px"><label>Service Node Auxiliary Pubkey:</label> {{sn.pubkey_ed25519}}</h4>
+    {%endif%}
+    <h4 style="margin:5px"><label>Lokinet Address:</label> {{sn.pubkey_ed25519 | base32z}}.snode</h4>
+  {%endif%}
+  <h4 style="margin:5px"><label>Operator Address:</label> {{sn.operator_address}}</h4>
+
+  <h2>Metadata</h2>
+  <div class="TitleUnderliner"></div>
+  <h4 class="info_list nowrap-spans">
+
+    <span><label>Registration height:</label> <a href="/block/{{sn.registration_height}}">{{sn.registration_height}}</a>
+      {%if sn.registration_hf_version < hf.version%}
+        (hardfork v{{sn.registration_hf_version}})
+      {%endif%}
+    </span>
+
+    <span title="TX index: {{sn.last_reward_transaction_index}}">
+      {%if sn.funded%}
+        {%if sn.active%}
+          <label>Active since block:</label>
+        {%else%}{# decommissioned #}
+          <label>Decommissioned since block:</label>
+        {%endif%}
+      {%else%}
+        <label>Last contribution block:</label>
+      {%endif%}
+      <a href="/block/{{sn.state_height}}">{{sn.state_height}}</a>
+    </span>
+
+    <span><label>Staking requirement:</label> {{sn.staking_requirement | loki}}</span>
+
+    {%if not solo_node%}
+      <span><label>Operator fee:</label> {{(sn.portions_for_operator / portions_base * 100) | round(3) | chop0}}%</span>
+    {%endif%}
+
+    <span><label>Total contributed:</label>
+      {%if sn.total_contributed >= sn.staking_requirement%}100%
+      {%else%} 
+      {{sn.total_contributed | loki}} ({{(sn.total_contributed / sn.staking_requirement) * 100 | round(2) | chop0}}%)
+      {%endif%}
+    </span>
+
+    {%if sn.total_reserved != sn.total_contributed%}
+      <span><label>Total reserved:</label> {{sn.total_reserved | loki}}</span>
+    {%endif%}
+
+    <span>
+    <label>{%if decommed %}Remaining{%else%}Allowed{%endif%} downtime:</label>
+    {%if sn.earned_downtime_blocks > 0%}
+      {{ (sn.earned_downtime_blocks * 120) | reltime(in_ago=false) }} ({{sn.earned_downtime_blocks}} blocks)
+      {%if not decommed and sn.earned_downtime_blocks < 60%}
+        <span class="note">(Note: ≥ 60 blocks required)</span>
+      {%endif%}
+    {%else%}
+      None
+    {%endif%}
+    </span>
+
+    <span>
+      <label class="omg{%if server.timestamp - sn.last_uptime_proof > 3900%} warning{%endif%}">Last uptime proof:</label>
+      {%if sn.last_uptime_proof == 0%}
+        <span>Not received</span>
+      {%else%}
+        <span title="{{sn.last_uptime_proof|from_timestamp|format_datetime}}">{{sn.last_uptime_proof | from_timestamp | ago}} ago</span>
+      {%endif%}
+    </span>
+
+  </h4>
+
+  <h2>Service Node Status</h2>
+  <div class="TitleDivider"></div>
+  {%if sn.active %}
+    <p class="sn-active">Registered, staked, and active on the network since block {{sn.state_height}}.</p>
+  {%elif sn.funded%}
+    <p class="sn-decomm"><span class="omg">Decommissioned</span>: this service node is
+    registered and staked, but is currently <span class="omg">decommissioned</span> (since block
+    {{sn.state_height}}) for failing to meet service node requirements.
+    {%if sn.earned_downtime_blocks > 0%}
+      If it does not return to active duty within {{sn.earned_downtime_blocks}} blocks (about
+      {{(sn.earned_downtime_blocks * 120) | reltime(in_ago=false)}}) it will face <span class="omg">deregistration</span>.
+    {%else%}
+      The decommission time has expired; service node <span class="omg">deregistration</span> is imminent.
+    {%endif%}
+    </p>
+  {%else%}
+    <p class="sn-awaiting">Awaiting registration.  This service node has <span class="loki required">{{(sn.staking_requirement - total_contributed) | loki}}</span>
+    remaining to be contributed.
+    {%if sn.num_open_spots > 0%}
+      The minimum required stake contribution is <span class="loki required">{{((sn.staking_requirement - sn.total_reserved) / sn.num_open_spots) | loki}}</span>.
+    {%endif%}
+    </p>
+  {%endif%}
+
+  <p class="sn-expiration{%if sn.requested_unlock_height > 0%} unlocking{%endif%}">
+    {%if sn.requested_unlock_height > 0%}
+      This service node is scheduled to expire at block {{sn.requested_unlock_height}}, in approximately
+      {{(sn.requested_unlock_height - info.height + 1) * 120 | reltime(in_ago=false) }}
+      ({{(server.datetime + ((sn.requested_unlock_height - info.height + 1) * 120)|from_timestamp) | format_datetime('short')}} UTC, est.)
+    {%else%}
+      This service node is staking infinitely: no unlock has been initiated by any of its contributors.
+    {%endif%}
+  </p>
+
+  <h2>{{sn.contributors|length}} Contributor{%if sn.contributors|length > 1%}s{%endif%}</h2>
+    <div class="TitleDivider"></div>
+
+    <table style="width:100%">
+      <thead>
+        <tr>
+          <td>Contributor</td>
+          <td>Amount</td>
+          <td>Reserved</td>
+        </tr>
+      </thead>
+
+      <tbody>
+        {%for c in sn.contributors%}
+          <tr>
+            <td>{{c.address}}</td>
+            <td>{{c.amount | loki}}
+              {%-if c.locked_contributions and c.locked_contributions|length > 1%}
+                ({{c.locked_contributions|length}} contributions)
+              {%endif-%}
+            </td>
+            <td>{{c.reserved | loki}}</td>
+          </tr>
+        {%endfor%}
+      </tbody>
+    </table>
+
+    {#FIXME:#}
+    {%if pending_stakes and pending_stakes|length > 0%}
+      <h2>{{pending_stakes|length}} pending mempool contribution(s)</h2>
+      <div class="TitleDivider"></div>
+
+      <table class="pending-mempool-stakes">
+        <tr class="TableHeader">
+          <td>Contributor</td>
+          <td class="tx">TX</td>
+          <td>Amount</td>
+        </tr>
+
+        {%for s in pending_stakes%}
+          <tr>
+            <td>{{s.address}}</td>
+            <td class="tx"><a href="/tx/{{s.txid}}">{{s.txid}}</a></td>
+            <td>{{s.amount}}</td>
+          </tr>
+        {%endfor%}
+      </table>
+    {%endif%}
+</div>
+{%endblock%}