Utilize sentry to track execution errors

discordbot/config.example.py

@@ -10,4 +10,6 @@ config = {
     'bots-discord-pw-token': "bots.discord.pw Post Stats Token",
     
     'logging-location': "/home/titan/Titan/discordbot/titanbot.log",
+    
+    "sentry-dsn": "Copy the dns string when creating a project on sentry",
 }

discordbot/titanembeds/bot.py

@@ -5,6 +5,8 @@ from titanembeds.commands import Commands
 from titanembeds.socketio import SocketIOInterface
 from titanembeds.poststats import DiscordBotsOrg, BotsDiscordPw
 from collections import deque
+from raven import Client as RavenClient
+import raven
 import discord
 import aiohttp
 import asyncio
@@ -15,6 +17,10 @@ logging.basicConfig(filename='titanbot.log',level=logging.INFO,format='%(asctime
 handler = logging.FileHandler(config.get("logging-location", "titanbot.log"))
 logging.getLogger('TitanBot')
 logging.getLogger('sqlalchemy')
+try:
+    raven_client = RavenClient(config["sentry-dsn"])
+except raven.exceptions.InvalidDsn:
+    pass
 
 class Titan(discord.AutoShardedClient):
     def __init__(self):

requirements.txt

@@ -16,3 +16,5 @@ flask-redis
 gino
 sqlalchemy==1.2.8
 asyncio_redis
+raven
+raven[flask]

webapp/config.example.py

@@ -27,4 +27,7 @@ config = {
     
     # https://titanembeds.com/api/webhook/discordbotsorg/vote
     'discordbotsorg-webhook-secret': "Secret code used in the authorization header for DBL webhook",
+    
+    # Sentry.io is used to track and upload errors
+    "sentry-dsn": "Copy the dns string when creating a project on sentry",
 }

webapp/run.py

@@ -41,6 +41,10 @@ def init_debug():
         except OSError:
             return "ERROR"
     
+    @app.route("/error")
+    def make_error():
+        1 / 0
+
         return "OK"
 if __name__ == "__main__":
     init_debug()

webapp/titanembeds/app.py

@@ -12,9 +12,9 @@ except:
         monkey.patch_all()
 
 from .database import db
-from flask import Flask, render_template, request, session, url_for, redirect, jsonify
+from flask import Flask, render_template, request, session, url_for, redirect, jsonify, g
 from flask_sslify import SSLify
-from titanembeds.utils import rate_limiter, discord_api, socketio, babel, redis_store, language_code_list
+from titanembeds.utils import rate_limiter, discord_api, socketio, babel, redis_store, language_code_list, sentry
 from .blueprints import api, user, admin, embed, gateway
 import os
 from titanembeds.database import get_administrators_list
@@ -34,6 +34,7 @@ app.config['PERMANENT_SESSION_LIFETIME'] = timedelta(days=3)
 app.config['REDIS_URL'] = config["redis-uri"]
 app.secret_key = config['app-secret']
 
+sentry.init_app(app)
 db.init_app(app)
 rate_limiter.init_app(app)
 if config.get("enable-ssl", False):
@@ -91,3 +92,10 @@ def context_processor():
         "af_mode_enabled": datetime.datetime.now().date() == datetime.date(datetime.datetime.now().year, 4, 1),
         "dbl_voted": session.get("unauthenticated", True) == False and bool(redis_store.get("DiscordBotsOrgVoted/" + str(session.get("user_id", -1))))
     }
+
+@app.errorhandler(500)
+def internal_server_error(error):
+    return render_template('500.html.j2',
+        event_id=g.sentry_event_id,
+        public_dsn=sentry.client.get_public_dsn('https')
+    )

webapp/titanembeds/templates/500.html.j2

@@ -0,0 +1,11 @@
+<!-- Sentry JS SDK 2.1.+ required -->
+<script src="https://cdn.ravenjs.com/2.3.0/raven.min.js"></script>
+
+{% if event_id %}
+  <script>
+  Raven.showReportDialog({
+    eventId: '{{ event_id }}',
+    dsn: '{{ public_dsn }}'
+  });
+  </script>
+{% endif %}

webapp/titanembeds/utils.py

@@ -7,6 +7,7 @@ from flask_babel import Babel
 from flask_redis import FlaskRedis
 from config import config
 from sqlalchemy import and_
+from raven.contrib.flask import Sentry
 import random
 import string
 import hashlib
@@ -352,6 +353,7 @@ def is_int(specimen):
 rate_limiter = Limiter(key_func=get_client_ipaddr) # Default limit by ip address
 socketio = SocketIO(engineio_logger=config.get("engineio-logging", False))
 babel = Babel()
+sentry = Sentry(dsn=config.get("sentry-dsn", None))
 
 @socketio.on_error_default  # disconnect on all errors
 def default_socketio_error_handler(e):