Production Hardening: Logging, Security, Rate Limiting, DB Indices, Redis Caching, Load Testing, and Docs

README.md

@@ -1 +1,302 @@
-# Project-Aura
+# Project-Aura
+
+AI-powered chat application with a production-ready FastAPI backend and Electron frontend.
+
+## Architecture
+
+```
+┌─────────────────┐
+│  Electron UI    │
+│   (TypeScript)  │
+└────────┬────────┘
+         │
+         │ HTTPS/WSS
+         │
+┌────────▼────────┐
+│  FastAPI Backend│
+│  - Auth & JWT   │
+│  - Rate Limiting│
+│  - Validation   │
+└───┬─────────┬───┘
+    │         │
+┌───▼──┐  ┌──▼────┐
+│Redis │  │Postgres│
+│Cache │  │  DB    │
+└──────┘  └────────┘
+```
+
+## Features
+
+### Frontend (Electron + TypeScript)
+- Multi-LLM support (Gemini, OpenAI, Claude, Mistral)
+- Real-time streaming responses
+- Plugin system (File Manager, Code Execution, Web Browser, etc.)
+- System integration capabilities
+
+### Backend (FastAPI + Python)
+- 🔐 **Security**: JWT authentication, bcrypt hashing, security headers, HTTPS enforcement
+- 🚦 **Rate Limiting**: Per-user/IP rate limits to prevent abuse
+- ⚡ **Performance**: Redis caching, database indices, connection pooling
+- 📝 **Observability**: Structured logging, Sentry integration, request tracking
+- ✅ **Validation**: Comprehensive input validation with Pydantic
+- 🛡️ **Protection**: SQL injection, XSS, CSRF protection
+
+## Quick Start
+
+### Backend Setup
+
+```bash
+cd backend
+
+# Install dependencies
+pip install -r requirements.txt
+
+# Configure environment
+cp .env.example .env
+# Edit .env with your settings
+
+# Run with Docker Compose (recommended)
+docker-compose up -d
+
+# OR run locally
+python -m app.main
+```
+
+Backend will be available at `http://localhost:8000`
+
+### Frontend Setup
+
+```bash
+# Install dependencies
+npm install
+
+# Run in development mode
+npm run dev
+```
+
+## Documentation
+
+### Backend Documentation
+- [Backend README](backend/README.md) - Complete backend documentation
+- [Production Deployment Guide](backend/docs/PRODUCTION_DEPLOYMENT.md) - Deployment best practices
+- [Security Review](backend/docs/SECURITY_REVIEW.md) - Security checklist and mitigations
+- [Monitoring Guide](backend/docs/MONITORING.md) - Observability and monitoring
+
+### API Documentation
+- Swagger UI: `http://localhost:8000/api/docs` (when DEBUG=true)
+- ReDoc: `http://localhost:8000/api/redoc` (when DEBUG=true)
+
+## Production Deployment
+
+### Prerequisites
+- Python 3.11+
+- PostgreSQL 14+
+- Redis 7+
+- Nginx (reverse proxy)
+- SSL/TLS certificates
+
+### Security Checklist
+- ✅ HTTPS enforced
+- ✅ Strong secret key generated
+- ✅ Database credentials secured
+- ✅ Rate limiting configured
+- ✅ Security headers enabled
+- ✅ Input validation implemented
+- ✅ Authentication required
+- ✅ Sentry configured (optional)
+
+See [Production Deployment Guide](backend/docs/PRODUCTION_DEPLOYMENT.md) for detailed instructions.
+
+## Load Testing
+
+Run load tests to verify performance:
+
+```bash
+cd backend
+chmod +x scripts/run_load_test.sh
+./scripts/run_load_test.sh
+```
+
+### Performance Targets
+- Average response time: < 200ms
+- 95th percentile: < 500ms
+- Throughput: > 100 req/s
+- Error rate: < 1%
+
+Results saved to `backend/load_test_report.html`
+
+## Development
+
+### Running Tests
+
+```bash
+# Backend tests
+cd backend
+pytest
+
+# Frontend tests
+npm test
+```
+
+### Code Quality
+
+```bash
+# Backend
+cd backend
+black app/
+flake8 app/
+mypy app/
+
+# Frontend
+npm run lint
+npm run format
+```
+
+## Technology Stack
+
+### Backend
+- **Framework**: FastAPI 0.109.0
+- **Database**: PostgreSQL 14+ with SQLAlchemy 2.0
+- **Cache**: Redis 7+ with aioredis
+- **Authentication**: JWT with python-jose
+- **Validation**: Pydantic 2.5
+- **Rate Limiting**: SlowAPI
+- **Monitoring**: Sentry, structlog
+- **Server**: Uvicorn + Gunicorn
+
+### Frontend
+- **Framework**: Electron
+- **Language**: TypeScript
+- **UI**: React (inferred from structure)
+- **LLM APIs**: Gemini, OpenAI, Claude, Mistral
+
+## API Endpoints
+
+### Authentication
+- `POST /api/auth/register` - Register new user
+- `POST /api/auth/login` - Login and receive JWT token
+
+### Conversations
+- `POST /api/conversations/` - Create conversation
+- `GET /api/conversations/` - List conversations (paginated, cached)
+- `GET /api/conversations/{id}` - Get conversation details
+- `PUT /api/conversations/{id}` - Update conversation
+- `DELETE /api/conversations/{id}` - Delete conversation
+
+### Messages
+- `POST /api/conversations/{id}/messages` - Create message
+- `GET /api/conversations/{id}/messages` - Get messages (paginated, cached)
+
+### Health
+- `GET /health` - Health check
+
+## Security
+
+### Implemented Security Measures
+
+1. **Authentication & Authorization**
+   - JWT-based authentication
+   - Bcrypt password hashing
+   - Token expiration (30 minutes default)
+   - User-level data isolation
+
+2. **Input Validation**
+   - Pydantic schema validation
+   - Length limits enforced
+   - Type checking
+   - SQL injection protection (ORM)
+   - XSS protection (automatic escaping)
+
+3. **API Security**
+   - Rate limiting (5-60 req/min per endpoint)
+   - CORS configuration
+   - Security headers (HSTS, CSP, X-Frame-Options, etc.)
+   - HTTPS enforcement
+   - Request size limits
+
+4. **Data Protection**
+   - Password hashing with bcrypt
+   - Secure token storage
+   - Environment-based secrets
+   - TLS/SSL for connections
+
+See [Security Review](backend/docs/SECURITY_REVIEW.md) for complete details.
+
+## Monitoring
+
+### Structured Logging
+- JSON format for production
+- Request/response logging
+- Error tracking with Sentry
+- Performance metrics
+
+### Health Checks
+```bash
+curl http://localhost:8000/health
+```
+
+### Metrics
+- Request rate
+- Response time (p50, p95, p99)
+- Error rate
+- Cache hit rate
+- Database connection pool usage
+
+See [Monitoring Guide](backend/docs/MONITORING.md) for complete details.
+
+## Scaling
+
+### Horizontal Scaling
+- Run multiple FastAPI instances behind load balancer
+- Redis for distributed caching
+- PostgreSQL read replicas
+
+### Vertical Scaling
+- Increase worker count
+- Adjust connection pool size
+- Optimize cache TTL
+
+### Recommended Production Setup
+- 4+ API server instances
+- Load balancer (Nginx/HAProxy)
+- PostgreSQL with read replicas
+- Redis Cluster or Sentinel
+- Automated backups
+- Monitoring and alerting
+
+## Contributing
+
+1. Fork the repository
+2. Create feature branch: `git checkout -b feature/my-feature`
+3. Commit changes: `git commit -am 'Add feature'`
+4. Push to branch: `git push origin feature/my-feature`
+5. Submit pull request
+
+## License
+
+[Your License Here]
+
+## Support
+
+- Documentation: See `/backend/docs` directory
+- Issues: GitHub Issues
+- Email: [Your Support Email]
+
+## Changelog
+
+### Version 1.0.0 (2024)
+- ✅ Production-ready FastAPI backend
+- ✅ JWT authentication with bcrypt
+- ✅ Rate limiting per user/IP
+- ✅ Redis caching with auto-invalidation
+- ✅ Database indices for performance
+- ✅ Structured logging (JSON)
+- ✅ Sentry error tracking
+- ✅ Security headers middleware
+- ✅ Input validation with Pydantic
+- ✅ HTTPS enforcement
+- ✅ Load testing scripts
+- ✅ Comprehensive documentation
+- ✅ Docker support
+- ✅ Alembic migrations
+- ✅ Health check endpoints

backend/.dockerignore

@@ -0,0 +1,26 @@
+__pycache__
+*.pyc
+*.pyo
+*.pyd
+.Python
+*.so
+*.egg
+*.egg-info
+dist
+build
+.env
+.venv
+venv/
+ENV/
+env/
+*.log
+.git
+.gitignore
+README.md
+.pytest_cache
+.coverage
+htmlcov
+.mypy_cache
+.DS_Store
+load_test_report.html
+load_test_results*.csv

backend/.env.example

@@ -0,0 +1,34 @@
+# Database
+DATABASE_URL=postgresql+asyncpg://postgres:password@localhost:5432/project_aura
+DATABASE_POOL_SIZE=20
+DATABASE_MAX_OVERFLOW=10
+
+# Redis
+REDIS_URL=redis://localhost:6379/0
+REDIS_CACHE_TTL=300
+
+# Security
+SECRET_KEY=your-secret-key-here-change-in-production
+JWT_ALGORITHM=HS256
+ACCESS_TOKEN_EXPIRE_MINUTES=30
+
+# CORS
+ALLOWED_ORIGINS=http://localhost:3000,http://localhost:5173
+
+# Rate Limiting
+RATE_LIMIT_PER_MINUTE=60
+RATE_LIMIT_BURST=10
+
+# Sentry
+SENTRY_DSN=
+SENTRY_ENVIRONMENT=development
+SENTRY_TRACES_SAMPLE_RATE=1.0
+
+# Application
+APP_NAME=Project-Aura
+APP_VERSION=1.0.0
+DEBUG=true
+LOG_LEVEL=INFO
+
+# HTTPS
+ENFORCE_HTTPS=false