This commit introduces major enhancements to Talk2Me:
## Database Integration
- PostgreSQL support with SQLAlchemy ORM
- Redis integration for caching and real-time analytics
- Automated database initialization scripts
- Migration support infrastructure
## User Authentication System
- JWT-based API authentication
- Session-based web authentication
- API key authentication for programmatic access
- User roles and permissions (admin/user)
- Login history and session tracking
- Rate limiting per user with customizable limits
## Admin Dashboard
- Real-time analytics and monitoring
- User management interface (create, edit, delete users)
- System health monitoring
- Request/error tracking
- Language pair usage statistics
- Performance metrics visualization
## Key Features
- Dual authentication support (token + user accounts)
- Graceful fallback for missing services
- Non-blocking analytics middleware
- Comprehensive error handling
- Session management with security features
## Bug Fixes
- Fixed rate limiting bypass for admin routes
- Added missing email validation method
- Improved error handling for missing database tables
- Fixed session-based authentication for API endpoints
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
Frontend Validation:
- Created Validator class with comprehensive validation methods
- HTML sanitization to prevent XSS attacks
- Text sanitization removing dangerous characters
- Language code validation against allowed list
- Audio file validation (size, type, extension)
- URL validation preventing injection attacks
- API key format validation
- Request size validation
- Filename sanitization
- Settings validation with type checking
- Cache key sanitization
- Client-side rate limiting tracking
Backend Validation:
- Created validators.py module for server-side validation
- Audio file validation with size and type checks
- Text sanitization with length limits
- Language code validation
- URL and API key validation
- JSON request size validation
- Rate limiting per endpoint (30 req/min)
- Added validation to all API endpoints
- Error boundary decorators on all routes
- CSRF token support ready
Security Features:
- Prevents XSS through HTML escaping
- Prevents SQL injection through input sanitization
- Prevents directory traversal in filenames
- Prevents oversized requests (DoS protection)
- Rate limiting prevents abuse
- Type checking prevents type confusion attacks
- Length limits prevent memory exhaustion
- Character filtering prevents control character injection
All user inputs are now validated and sanitized before processing.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
