added error handling

app/routes.py

@@ -3,6 +3,7 @@ from flask_mail import Message
 from itsdangerous import URLSafeTimedSerializer, SignatureExpired, BadSignature
 from app.extensions import db, mail, limiter
 from app.models import Participant
+import traceback
 
 bp = Blueprint('main', __name__)
 
@@ -88,16 +89,16 @@ def index():
 def verify_email(token):
     s = URLSafeTimedSerializer(current_app.config['SECRET_KEY'])
     try:
-        email = s.loads(token, salt='email-confirm-h4tum-ctf-2025', max_age=3600)
+        email = s.loads(token, salt='email-confirm-h4tum-ctf-2025', max_age=28800)
     except SignatureExpired:
-        return '<h1>Token expired. Please register again.</h1>'
+        return render_template("error.html", error_message="Token expired. Please register again.")
     except BadSignature:
-        return '<h1>Invalid token.</h1>'
+        return render_template("error.html", error_message="Invalid token.")
 
     user = Participant.query.filter_by(email=email).first_or_404()
 
     if get_confirmed_count() >= current_app.config['MAX_SPOTS']:
-        return '<h1>Sorry! The event filled up while you were verifying.</h1>'
+        return render_template("error.html", error_message="Sorry! The event filled up while you were verifying.")
 
     user.confirmed = True
     db.session.commit()
@@ -106,7 +107,7 @@ def verify_email(token):
     discord_token = user.discord_token
     msg = "You are confirmed!"
     if user.looking_for_team:
-        msg += " Since you need a team, please join the #looking-for-group channel."
+        msg += " Since you need a team, please join the #team-search channel."
     
     return render_template('success.html', message=msg, discord_link=discord_link, discord_token=discord_token)
 
@@ -124,3 +125,17 @@ def impressum():
 @limiter.exempt
 def rules():
     return render_template('rules.html')
+
+@bp.errorhandler(429)
+def ratelimit_handler(e):
+    return render_template("ratelimit_error.html", error_message=e.description)
+
+@bp.errorhandler(500)
+def server_error(e):
+    msg = Message('500 Error on registration Website', recipients=["simon.bussmann@tum.de"])
+    full_traceback = traceback.format_exc()
+    
+    msg.body = f"An error occurred during registration:\n\n{full_traceback}"
+    mail.send(msg)
+
+    return render_template("error.html", error_message="Internal Server Error. Admin has been notified!")

app/templates/error.html

@@ -0,0 +1,15 @@
+{% extends "base.html" %}
+{% block content %}
+
+<style>
+.container {
+    text-align: center;
+}
+</style>
+
+<div class="container">
+  <h1>> Error:</h1>
+  <h1 style="color:#ffffff;">{{ error_message }}</h1>
+</div>
+
+{% endblock %}

app/templates/ratelimit_error.html

@@ -0,0 +1,14 @@
+{% extends "base.html" %}
+{% block content %}
+<style>
+ .container {
+    text-align: center;
+  }
+</style>
+
+<div class="container">
+  <h1>> Ratelimit exceeded:</h1>
+  <h1 style="color:#ffffff;">{{ error_message }}</h1>
+</div>
+
+{% endblock %}