WIP registration platform + discord bot

app/__init__.py

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+from flask import Flask
+from app.config import Config
+from app.extensions import db, mail
+
+def create_app(config_class=Config):
+    app = Flask(__name__)
+    app.config.from_object(config_class)
+
+    # Initialize extensions
+    db.init_app(app)
+    mail.init_app(app)
+
+    # Register Blueprints
+    from app.routes import bp as main_bp
+    app.register_blueprint(main_bp)
+
+    # Create DB tables
+    with app.app_context():
+        db.create_all()
+
+    return app

app/config.py.example

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+import os
+
+class Config:
+    SECRET_KEY = os.environ.get('SECRET_KEY')
+    
+    basedir = os.path.abspath(os.path.dirname(__file__))
+    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
+        'sqlite:///' + os.path.join(basedir, '../instance/registration.db')
+    SQLALCHEMY_TRACK_MODIFICATIONS = False
+
+    # Email Settings (Update these!)
+    MAIL_SERVER = 
+    MAIL_PORT = 
+    MAIL_USE_TLS = True
+    MAIL_USERNAME = os.environ.get('EMAIL_USER')
+    MAIL_PASSWORD = os.environ.get('EMAIL_PASS')
+    MAIL_DEFAULT_SENDER = os.environ.get('EMAIL_USER')
+
+    MAX_SPOTS =
+    TUM_DOMAIN = "tum.de"
+    DISCORD_LINK =

app/extensions.py

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+from flask_sqlalchemy import SQLAlchemy
+from flask_mail import Mail
+
+db = SQLAlchemy()
+mail = Mail()

app/models.py

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+from app.extensions import db
+import secrets
+
+class Participant(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    name = db.Column(db.String(100), nullable=False)
+    email = db.Column(db.String(120), unique=True, nullable=False)
+    looking_for_team = db.Column(db.Boolean, default=False)
+    confirmed = db.Column(db.Boolean, default=False)
+    discord_token = db.Column(db.String(16), unique=True)
+    discord_user_id = db.Column(db.String(50))
+
+    def __init__(self, name : str, email : str, looking_for_team : bool) -> None:
+        super().__init__()
+        self.name = name
+        self.email = email
+        self.looking_for_team = looking_for_team
+        self.discord_token = secrets.token_hex(8)
+
+    def __repr__(self):
+        return f'<Participant {self.email}>'

app/routes.py

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+from flask import Blueprint, render_template, request, flash, redirect, url_for, current_app
+from flask_mail import Message
+from itsdangerous import URLSafeTimedSerializer, SignatureExpired, BadSignature
+from app.extensions import db, mail
+from app.models import Participant
+
+bp = Blueprint('main', __name__)
+
+def get_confirmed_count():
+    return Participant.query.filter_by(confirmed=True).count()
+
+def send_verification_email(user_email):
+    s = URLSafeTimedSerializer(current_app.config['SECRET_KEY'])
+    token = s.dumps(user_email, salt='email-confirm-h4tum-ctf-2025')
+    link = url_for('main.verify_email', token=token, _external=True)
+    
+    #msg = Message('Verify your CTF Registration', recipients=[user_email])
+    #msg.body = f'Click here to confirm your spot: {link}'
+    print(link)
+
+@bp.route('/', methods=['GET', 'POST'])
+def index():
+    confirmed_count = get_confirmed_count()
+    max_spots = current_app.config['MAX_SPOTS']
+    spots_left = max_spots - confirmed_count
+
+    if request.method == 'POST':
+        name = request.form['name']
+        email = request.form['email'].lower().strip()
+        looking_for_team = True if request.form.get('looking_for_team') else False
+        
+        tum_domain = current_app.config['TUM_DOMAIN']
+        if not email.endswith(f"@{tum_domain}"):
+            flash(f"Error: You must use a @{tum_domain} email address.", "error")
+            return redirect(url_for('main.index'))
+        
+        if confirmed_count >= max_spots:
+            flash("Sorry, the event is full!", "error")
+            return redirect(url_for('main.index'))
+
+        existing_user = Participant.query.filter_by(email=email).first()
+        if existing_user:
+            if existing_user.confirmed:
+                flash("You are already registered and confirmed!", "info")
+            else:
+                flash("Confirmation email resent. Please check your inbox.", "info")
+                send_verification_email(email)
+            return redirect(url_for('main.index'))
+
+        new_user = Participant(name=name, email=email, looking_for_team=looking_for_team)
+        db.session.add(new_user)
+        db.session.commit()
+
+        send_verification_email(email)
+        flash("Registration started! Check your email to confirm your spot.", "success")
+        return redirect(url_for('main.index'))
+
+    return render_template('index.html', spots_left=spots_left)
+
+@bp.route('/verify/<token>')
+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)
+    except SignatureExpired:
+        return '<h1>Token expired. Please register again.</h1>'
+    except BadSignature:
+        return '<h1>Invalid token.</h1>'
+
+    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>'
+
+    user.confirmed = True
+    db.session.commit()
+
+    discord_link = current_app.config['DISCORD_LINK']
+    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."
+    
+    return render_template('success.html', message=msg, discord_link=discord_link, discord_token=discord_token)

app/static/style.css

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+/* Styles are inline in HTML for simplicity, but this file is created for structure */

app/templates/index.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>TUM CTF Registration</title>
+    <link rel="stylesheet" href="{{ url_for('static', filename='style.css') }}">
+    <style>
+        body { 
+            font-family: 'Courier New', monospace; 
+            background: #1a1a1a; 
+            color: #00ff00; 
+            margin: 0; 
+            padding: 10px; /* Reduced for mobile */
+            font-size: 18px; /* Balanced size for readability */
+        }
+        
+        .container { 
+            max-width: 600px; /* Prevents it from stretching too wide on desktop */
+            margin: 20px auto; 
+            background: #222; 
+            padding: 20px; 
+            border: 1px solid #00ff00; 
+            box-sizing: border-box; /* Ensures padding doesn't break layout */
+        }
+
+        h1 { font-size: 1.5rem; word-wrap: break-word; }
+        
+        input[type="text"], input[type="email"] { 
+            width: 100%; 
+            padding: 12px; 
+            margin: 10px 0; 
+            background: #000; 
+            color: #00ff00; 
+            border: 1px solid #00ff00; 
+            box-sizing: border-box;
+            font-size: 16px; /* Prevents iOS from zooming in on focus */
+        }
+
+        button { 
+            background: #00ff00; 
+            color: #000; 
+            padding: 15px 20px; 
+            border: none; 
+            font-weight: bold; 
+            cursor: pointer; 
+            width: 100%; /* Full width button is easier to tap on mobile */
+            font-family: inherit;
+        }
+
+        .alert { padding: 10px; margin-bottom: 10px; border: 1px solid white; font-size: 14px; }
+        .alert.error { border-color: red; color: red; }
+        .alert.success { border-color: #00ff00; }
+
+        ul { padding-left: 20px; }
+        li { margin-bottom: 10px; }
+
+        /* Small screen adjustments */
+        @media (max-width: 480px) {
+            body { font-size: 16px; }
+            .container { padding: 15px; }
+            h1 { font-size: 1.2rem; }
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <h1>> TUM CTF 2025_</h1>
+        
+        {% with messages = get_flashed_messages(with_categories=true) %}
+          {% if messages %}
+            {% for category, message in messages %}
+              <div class="alert {{ category }}">{{ message }}</div>
+            {% endfor %}
+          {% endif %}
+        {% endwith %}
+
+        <div class="status">
+            <h2>Spots Remaining: {{ spots_left }} / 84</h2>
+        </div>
+
+        {% if spots_left > 0 %}
+            <form method="POST">
+                <label>Name</label>
+                <input type="text" name="name" required>
+                
+                <label>TUM Email</label>
+                <input type="email" name="email" placeholder="@tum.de" required>
+                
+                <label style="display:block; margin: 20px 0; line-height: 1.4;">
+                    <input type="checkbox" name="looking_for_team" style="transform: scale(1.2); margin-right: 10px;">
+                    [ ] I need a team / looking for group
+                </label>
+                
+                <button type="submit">INITIALIZE_REGISTRATION</button>
+            </form>
+        {% else %}
+            <h2 style="color:red">EVENT FULL</h2>
+        {% endif %}
+
+        <hr style="border-color: #333; margin: 30px 0;">
+
+        <div class="info">
+            <h3>> SYSTEM_INFO</h3>
+            <ul>
+                <li><strong>Team Size:</strong> 4 People</li>
+                <li><strong>Location:</strong> MI Rechnerhalle, Garching</li>
+                <li><strong>Date:</strong> 16.01.2026 12:00</li>
+            </ul>
+        </div>
+    </div>
+</body>
+</html>

app/templates/success.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <title>Access Granted</title>
+    <style>
+        body { 
+            font-family: monospace; 
+            background: #1a1a1a; 
+            color: #00ff00; 
+            
+            /* The centering magic */
+            display: flex;
+            flex-direction: column;
+            justify-content: center; /* Vertical center */
+            align-items: center;     /* Horizontal center */
+            height: 100vh;           /* Uses full viewport height */
+            margin: 0;               /* Removes default browser margins */
+        }
+
+        h1 {
+            font-size: 5rem;         /* Makes it "Big" */
+            margin-bottom: 10px;
+            text-shadow: 0 0 10px #00ff00; /* Adds a hacker glow */
+        }
+
+        a { 
+            color: white; 
+            text-decoration: none;
+        }
+
+        a:hover {
+            text-decoration: underline;
+        }
+    </style>
+</head>
+<body>
+    <h1>ACCESS GRANTED</h1>
+    <h2>{{ message }}</h2>
+    <h2>
+        <a href="{{ discord_link }}">Join the Discord server</a> 
+        | Access Token: {{ discord_token }}
+    </h2>
+</body>
+</html>