Merge pull request #211 from stepansnigirev/server-error-page

Custom exception handler page
cryptoadvance · Jul 12, 2020 · 5c89030 · 5c89030
2 parents 90c1d09 + cd3f6d5
commit 5c89030
Show file tree

Hide file tree

Showing 2 changed files with 37 additions and 0 deletions.
diff --git a/src/cryptoadvance/specter/controller.py b/src/cryptoadvance/specter/controller.py
@@ -23,6 +23,8 @@
 from .user import User
 from datetime import datetime
 import urllib
+from io import BytesIO
+import traceback
 
 from pathlib import Path
 env_path = Path('.') / '.flaskenv'
@@ -32,6 +34,14 @@
 from flask import current_app as app
 rand = random.randint(0, 1e32) # to force style refresh
 
+########## exception handler ##############
+@app.errorhandler(Exception)
+def server_error(e):
+    app.logger.error("Uncaught exception: %s" % e)
+    trace = traceback.format_exc()
+    return render_template('500.jinja', error=e, traceback=trace), 500
+
+########## on every request ###############
 @app.before_request
 def selfcheck():
     """check status before every request"""

diff --git a/src/cryptoadvance/specter/templates/500.jinja b/src/cryptoadvance/specter/templates/500.jinja
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <link rel="shortcut icon" type="image/png" href="/static/img/icon.png"/>
+    <title>Specter Desktop</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link rel="stylesheet" type="text/css" href="/static/styles.css">
+    <style type="text/css">
+        a{
+            color: #fff;
+        }
+    </style>
+</head>
+<body>
+    <main>
+        <br><br><br>
+        <div class="card" style="width:90%; max-width: 800px;">
+            <h1>Server error!</h1>
+            Exception: <b>{{ error }}</b><br><br>
+            Details:
+            <pre><code>{{ traceback }}</code></pre>
+            <br>
+            <div>Please let us know! Create an <a href="https://github.com/cryptoadvance/specter-desktop/issues" target="blank">issue</a> or ping us on <a href="https://t.me/spectersupport" target="blank">Telegram</a> to fix it.</div>
+        </div>
+    </main>
+</body>
+</html>