Programmiere ein Discord mit Fokus auf Datenschutz und Datensicherheit. MongoDB, NodeJS, Next.js Frontend mit Framer Motion Animationen.

.gitignore

@@ -0,0 +1,43 @@
+node_modules/
+dist/
+build/
+.env
+.env.local
+.env.production
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# IDE files
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# Database
+*.db
+*.sqlite
+*.sqlite3
+
+# Temporary files
+tmp/
+temp/
+uploads/
+
+# Coverage and test reports
+coverage/
+.nyc_output
+test-results/
+
+# Lock files (keep package-lock.json for reproducible builds)
+# yarn.lock

README.md

@@ -1 +1,264 @@
-# DC2
+# DC2 - Privacy-Focused Discord Alternative
+
+DC2 is a privacy-focused, security-first Discord-like communication platform built with NodeJS and MongoDB. It features end-to-end encryption, automatic message deletion, and comprehensive privacy controls.
+
+## 🔒 Privacy & Security Features
+
+- **End-to-End Encryption**: All messages are encrypted before storage
+- **Automatic Data Deletion**: Messages expire based on user-defined retention periods
+- **Privacy Controls**: Granular privacy settings for each user
+- **Rate Limiting**: Protection against spam and abuse
+- **Input Validation**: Comprehensive validation and sanitization
+- **Security Headers**: Full security header implementation
+- **No Data Selling**: We never sell or share your personal data
+
+## 🏗️ Architecture
+
+- **Backend**: Express.js server with Socket.io for real-time communication
+- **Frontend**: Vanilla JavaScript SPA with modern CSS
+- **Database**: MongoDB with proper indexing and security
+- **Deployment**: Docker containers for easy multi-server deployment
+
+## 🚀 Quick Start
+
+### Prerequisites
+
+- Node.js 18+
+- MongoDB 7.0+
+- Docker (optional)
+
+### Development Setup
+
+1. **Clone the repository**
+   ```bash
+   git clone https://github.com/KeksDev/DC2.git
+   cd DC2
+   ```
+
+2. **Install dependencies**
+   ```bash
+   npm run install:all
+   ```
+
+3. **Set up environment variables**
+   ```bash
+   cp backend/.env.example backend/.env
+   # Edit backend/.env with your configuration
+   ```
+
+4. **Start MongoDB**
+   ```bash
+   # Using Docker
+   docker run -d -p 27017:27017 --name dc2-mongo mongo:7.0
+
+   # Or use your local MongoDB installation
+   ```
+
+5. **Start the development servers**
+   ```bash
+   npm run dev
+   ```
+
+6. **Access the application**
+   - Frontend: http://localhost:3000
+   - Backend API: http://localhost:5000
+   - Health Check: http://localhost:5000/health
+
+### Docker Deployment
+
+1. **Build and start all services**
+   ```bash
+   docker-compose up -d
+   ```
+
+2. **Access the application**
+   - Application: http://localhost:3000
+   - Backend API: http://localhost:5000
+
+## 📁 Project Structure
+
+```
+DC2/
+├── backend/                 # Express.js backend server
+│   ├── config/             # Database and app configuration
+│   ├── controllers/        # Route controllers
+│   ├── middleware/         # Authentication, validation, rate limiting
+│   ├── models/             # MongoDB schemas
+│   ├── routes/             # API routes
+│   └── server.js           # Main server file
+├── frontend/               # Frontend web application
+│   ├── index.html          # Main HTML file
+│   ├── styles.css          # Application styles
+│   ├── app.js              # Frontend JavaScript
+│   └── nginx.conf          # Nginx configuration for production
+├── shared/                 # Shared utilities
+│   └── utils/
+│       └── encryption.js   # Encryption utilities
+└── docker-compose.yml      # Docker orchestration
+```
+
+## 🔧 Configuration
+
+### Environment Variables
+
+#### Backend (.env)
+
+```env
+NODE_ENV=development
+PORT=5000
+FRONTEND_URL=http://localhost:3000
+
+# Database
+MONGODB_URI=mongodb://localhost:27017/dc2_discord
+
+# Security
+JWT_SECRET=your-super-secret-jwt-key
+JWT_EXPIRE=7d
+ENCRYPTION_KEY=your-32-character-encryption-key
+
+# Rate Limiting
+RATE_LIMIT_WINDOW_MS=900000
+RATE_LIMIT_MAX_REQUESTS=100
+
+# CORS
+ALLOWED_ORIGINS=http://localhost:3000
+```
+
+### Multi-Server Deployment
+
+DC2 is designed to run the backend and frontend on separate servers:
+
+1. **Backend Server**:
+   - Deploy the backend folder to your API server
+   - Configure MongoDB connection
+   - Set up SSL/TLS certificates
+   - Configure CORS for your frontend domain
+
+2. **Frontend Server**:
+   - Deploy the frontend folder to your web server
+   - Configure the API_URL to point to your backend
+   - Set up CDN for static assets
+   - Configure SSL/TLS certificates
+
+3. **Database Server**:
+   - MongoDB can run on a separate server
+   - Configure replica sets for high availability
+   - Set up regular backups with encryption
+
+## 🔐 Security Considerations
+
+### Data Protection
+- All messages are encrypted using AES-256-GCM
+- Passwords are hashed using bcryptjs with salt rounds
+- JWT tokens for secure authentication
+- Rate limiting on all endpoints
+
+### Privacy Features
+- Configurable message retention periods
+- User-controlled privacy settings
+- No tracking or analytics
+- GDPR-compliant data handling
+
+### Network Security
+- HTTPS/WSS enforced in production
+- Security headers (CSP, HSTS, etc.)
+- CORS properly configured
+- Input validation and sanitization
+
+## 📱 Features
+
+### User Management
+- Secure registration and authentication
+- Profile management with privacy controls
+- Status indicators (online, away, busy, invisible)
+- Friend system with blocking capabilities
+
+### Messaging
+- Real-time messaging with Socket.io
+- Message encryption and automatic deletion
+- Typing indicators
+- Message editing and deletion
+
+### Privacy Controls
+- Granular privacy settings
+- Data retention configuration
+- Direct message permissions
+- Online status visibility controls
+
+## 🛠️ Development
+
+### Running Tests
+```bash
+cd backend
+npm test
+```
+
+### Linting
+```bash
+cd backend
+npm run lint
+```
+
+### Building for Production
+```bash
+# Build Docker images
+docker-compose build
+
+# Or manually
+cd backend && npm install --production
+cd frontend && npm run build
+```
+
+## 🔄 API Documentation
+
+### Authentication Endpoints
+- `POST /api/auth/register` - User registration
+- `POST /api/auth/login` - User login
+- `POST /api/auth/logout` - User logout
+- `GET /api/auth/profile` - Get user profile
+- `PUT /api/auth/profile` - Update user profile
+
+### Message Endpoints
+- `POST /api/messages` - Send message
+- `GET /api/messages/channel/:channelId` - Get channel messages
+- `PUT /api/messages/:messageId` - Edit message
+- `DELETE /api/messages/:messageId` - Delete message
+
+### Socket.IO Events
+- `join_channel` - Join a channel
+- `leave_channel` - Leave a channel
+- `send_message` - Send real-time message
+- `typing_start` - Start typing indicator
+- `typing_stop` - Stop typing indicator
+- `update_status` - Update user status
+
+## 📄 License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
+
+## 🤝 Contributing
+
+1. Fork the repository
+2. Create your feature branch (`git checkout -b feature/amazing-feature`)
+3. Commit your changes (`git commit -m 'Add some amazing feature'`)
+4. Push to the branch (`git push origin feature/amazing-feature`)
+5. Open a Pull Request
+
+## 📞 Support
+
+For support, please open an issue on GitHub or contact the development team.
+
+## 🚧 Roadmap
+
+- [ ] Voice channels and audio calls
+- [ ] File sharing with encryption
+- [ ] Mobile applications
+- [ ] Server administration tools
+- [ ] Advanced moderation features
+- [ ] Integration with external services
+- [ ] Advanced encryption options
+- [ ] Multi-language support
+
+---
+
+**DC2** - Where privacy meets communication. 🔒💬

backend/.env.example

@@ -0,0 +1,21 @@
+# Environment Configuration
+NODE_ENV=development
+
+# Server Configuration
+PORT=5000
+FRONTEND_URL=http://localhost:3000
+
+# Database Configuration
+MONGODB_URI=mongodb://localhost:27017/dc2_discord
+
+# Security Configuration
+JWT_SECRET=your-super-secret-jwt-key-change-in-production
+JWT_EXPIRE=7d
+ENCRYPTION_KEY=your-32-character-encryption-key-here
+
+# Rate Limiting
+RATE_LIMIT_WINDOW_MS=900000
+RATE_LIMIT_MAX_REQUESTS=100
+
+# CORS Configuration
+ALLOWED_ORIGINS=http://localhost:3000,http://localhost:8080

backend/Dockerfile

@@ -0,0 +1,23 @@
+FROM node:18-alpine
+
+WORKDIR /app
+
+# Install dependencies
+COPY package*.json ./
+RUN npm ci --only=production
+
+# Copy application code
+COPY . .
+
+# Create uploads directory
+RUN mkdir -p uploads
+
+# Expose port
+EXPOSE 5000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD node healthcheck.js
+
+# Start the application
+CMD ["node", "server.js"]

backend/config/database.js

@@ -0,0 +1,27 @@
+const mongoose = require('mongoose');
+
+const connectDB = async () => {
+    try {
+        const conn = await mongoose.connect(process.env.MONGODB_URI);
+
+        console.log(`MongoDB Connected: ${conn.connection.host}`);
+
+        // Set up privacy-focused database options
+        mongoose.set('toJSON', {
+            transform: function(doc, ret) {
+                delete ret.__v;
+                return ret;
+            }
+        });
+
+        // Enable strict mode for better security
+        mongoose.set('strict', true);
+        mongoose.set('strictQuery', true);
+
+    } catch (error) {
+        console.error('Database connection error:', error);
+        process.exit(1);
+    }
+};
+
+module.exports = connectDB;