From fa951c3141a5f33cf64ec0def7be908986dc8f51 Mon Sep 17 00:00:00 2001 From: Adolfo Delorenzo Date: Tue, 3 Jun 2025 18:21:56 -0600 Subject: [PATCH] Add comprehensive database integration, authentication, and admin dashboard MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- ADMIN_DASHBOARD.md | 221 ++++++ AUTHENTICATION.md | 315 +++++++++ DATABASE_INTEGRATION.md | 302 +++++++++ README.md | 42 ++ admin/__init__.py | 534 +++++++++++++++ admin/static/css/admin.css | 192 ++++++ admin/static/js/admin.js | 519 ++++++++++++++ admin/templates/base.html | 75 +++ admin/templates/dashboard.html | 277 ++++++++ admin/templates/dashboard_simple.html | 120 ++++ admin/templates/login.html | 35 + admin_loader.py | 47 ++ admin_simple.py | 77 +++ analytics_middleware.py | 426 ++++++++++++ app.py | 284 +++++++- app_with_db.py | 746 ++++++++++++++++++++ auth.py | 476 +++++++++++++ auth_models.py | 366 ++++++++++ auth_routes.py | 899 +++++++++++++++++++++++++ check_services.py | 48 ++ config.py | 16 +- database.py | 268 ++++++++ database_init.py | 135 ++++ init_all_databases.py | 75 +++ init_analytics_db.py | 72 ++ init_auth_db.py | 149 ++++ memory_manager.py | 467 +++++-------- migrations.py | 135 ++++ migrations/add_user_authentication.py | 216 ++++++ migrations/create_analytics_tables.sql | 135 ++++ rate_limiter.py | 31 +- redis_manager.py | 446 ++++++++++++ redis_rate_limiter.py | 365 ++++++++++ redis_session_manager.py | 389 +++++++++++ requirements.txt | 12 + run_dev_server.sh | 32 + setup_databases.sh | 156 +++++ templates/admin_users.html | 693 +++++++++++++++++++ templates/login.html | 287 ++++++++ user_rate_limiter.py | 352 ++++++++++ validators.py | 13 + 41 files changed, 10120 insertions(+), 325 deletions(-) create mode 100644 ADMIN_DASHBOARD.md create mode 100644 AUTHENTICATION.md create mode 100644 DATABASE_INTEGRATION.md create mode 100644 admin/__init__.py create mode 100644 admin/static/css/admin.css create mode 100644 admin/static/js/admin.js create mode 100644 admin/templates/base.html create mode 100644 admin/templates/dashboard.html create mode 100644 admin/templates/dashboard_simple.html create mode 100644 admin/templates/login.html create mode 100644 admin_loader.py create mode 100644 admin_simple.py create mode 100644 analytics_middleware.py create mode 100644 app_with_db.py create mode 100644 auth.py create mode 100644 auth_models.py create mode 100644 auth_routes.py create mode 100644 check_services.py create mode 100644 database.py create mode 100644 database_init.py create mode 100755 init_all_databases.py create mode 100755 init_analytics_db.py create mode 100644 init_auth_db.py create mode 100644 migrations.py create mode 100644 migrations/add_user_authentication.py create mode 100644 migrations/create_analytics_tables.sql create mode 100644 redis_manager.py create mode 100644 redis_rate_limiter.py create mode 100644 redis_session_manager.py create mode 100755 run_dev_server.sh create mode 100755 setup_databases.sh create mode 100644 templates/admin_users.html create mode 100644 templates/login.html create mode 100644 user_rate_limiter.py diff --git a/ADMIN_DASHBOARD.md b/ADMIN_DASHBOARD.md new file mode 100644 index 0000000..73792f3 --- /dev/null +++ b/ADMIN_DASHBOARD.md @@ -0,0 +1,221 @@ +# Talk2Me Admin Analytics Dashboard + +A comprehensive analytics dashboard for monitoring and managing the Talk2Me application. + +## Features + +### Real-time Monitoring +- **Request Volume**: Track requests per minute, hour, and day +- **Active Sessions**: Monitor current active user sessions +- **Error Rates**: Real-time error tracking and analysis +- **System Health**: Monitor Redis, PostgreSQL, and ML services status + +### Analytics & Insights +- **Translation & Transcription Metrics**: Usage statistics by operation type +- **Language Pair Analysis**: Most popular translation combinations +- **Response Time Monitoring**: Track performance across all operations +- **Cache Performance**: Monitor cache hit rates for optimization + +### Performance Metrics +- **Response Time Percentiles**: P95 and P99 latency tracking +- **Throughput Analysis**: Requests per minute visualization +- **Slow Request Detection**: Identify and analyze performance bottlenecks +- **Resource Usage**: Memory and GPU utilization tracking + +### Data Management +- **Export Capabilities**: Download analytics data in JSON format +- **Historical Data**: View trends over time (daily, weekly, monthly) +- **Error Logs**: Detailed error tracking with stack traces +- **Session Management**: Track and manage user sessions + +## Setup + +### 1. Database Setup + +Initialize the analytics database tables: + +```bash +python init_analytics_db.py +``` + +This creates the following tables: +- `error_logs`: Detailed error tracking +- `request_logs`: Request-level analytics +- `translation_logs`: Translation operation metrics +- `transcription_logs`: Transcription operation metrics +- `tts_logs`: Text-to-speech operation metrics +- `daily_stats`: Aggregated daily statistics + +### 2. Configuration + +Set the following environment variables: + +```bash +# Admin access token (required) +export ADMIN_TOKEN="your-secure-admin-token" + +# Database configuration +export DATABASE_URL="postgresql://user:password@localhost/talk2me" + +# Redis configuration +export REDIS_URL="redis://localhost:6379/0" +``` + +### 3. Access the Dashboard + +1. Navigate to: `http://your-domain/admin` +2. Enter your admin token +3. Access the analytics dashboard + +## Dashboard Sections + +### Overview Cards +- Total Requests (all-time and today) +- Active Sessions (real-time) +- Error Rate (24-hour percentage) +- Cache Hit Rate (performance metric) + +### Charts & Visualizations + +#### Request Volume Chart +- Toggle between minute, hour, and day views +- Real-time updates every 5 seconds +- Historical data for trend analysis + +#### Language Pairs Donut Chart +- Top 6 most used language combinations +- Visual breakdown of translation patterns + +#### Operations Bar Chart +- Daily translation and transcription counts +- 7-day historical view + +#### Response Time Line Chart +- Average, P95, and P99 response times +- Broken down by operation type + +#### Error Analysis +- Error type distribution pie chart +- Recent errors list with details +- Timeline of error occurrences + +### Performance Table +- Detailed metrics for each operation type +- Average response times +- 95th and 99th percentile latencies + +## Real-time Updates + +The dashboard uses Server-Sent Events (SSE) for real-time updates: +- Automatic refresh every 5 seconds +- Connection status indicator +- Automatic reconnection on disconnect + +## Data Export + +Export analytics data for external analysis: + +1. Click "Export Data" in the navigation +2. Choose data type: + - `requests`: Request and operation counts + - `errors`: Error logs and details + - `performance`: Response time metrics + - `all`: Complete data export + +## API Endpoints + +The admin dashboard provides the following API endpoints: + +### Authentication Required +All endpoints require the `X-Admin-Token` header. + +### Available Endpoints + +#### Overview Stats +``` +GET /admin/api/stats/overview +``` +Returns overall system statistics + +#### Request Statistics +``` +GET /admin/api/stats/requests/{timeframe} +``` +Timeframes: `minute`, `hour`, `day` + +#### Operation Statistics +``` +GET /admin/api/stats/operations +``` +Translation and transcription metrics + +#### Error Statistics +``` +GET /admin/api/stats/errors +``` +Error types, timeline, and recent errors + +#### Performance Statistics +``` +GET /admin/api/stats/performance +``` +Response times and throughput metrics + +#### Data Export +``` +GET /admin/api/export/{data_type} +``` +Data types: `requests`, `errors`, `performance`, `all` + +#### Real-time Updates +``` +GET /admin/api/stream/updates +``` +Server-Sent Events stream for real-time updates + +## Mobile Optimization + +The dashboard is fully responsive and optimized for mobile devices: +- Touch-friendly controls +- Responsive charts that adapt to screen size +- Collapsible navigation for small screens +- Optimized data tables for mobile viewing + +## Security + +- Admin token authentication required +- Session-based authentication after login +- Separate CORS configuration for admin endpoints +- All sensitive data masked in exports + +## Troubleshooting + +### Dashboard Not Loading +1. Check Redis and PostgreSQL connections +2. Verify admin token is set correctly +3. Check browser console for JavaScript errors + +### Missing Data +1. Ensure analytics middleware is initialized +2. Check database tables are created +3. Verify Redis is running and accessible + +### Real-time Updates Not Working +1. Check SSE support in your reverse proxy +2. Ensure `X-Accel-Buffering: no` header is set +3. Verify firewall allows SSE connections + +## Performance Considerations + +- Charts limited to reasonable data points for performance +- Automatic data aggregation for historical views +- Efficient database queries with proper indexing +- Client-side caching for static data + +## Future Enhancements + +- WebSocket support for lower latency updates +- Customizable dashboards and widgets +- Alert configuration for thresholds +- Integration with external monitoring tools +- Machine learning for anomaly detection \ No newline at end of file diff --git a/AUTHENTICATION.md b/AUTHENTICATION.md new file mode 100644 index 0000000..33f91a4 --- /dev/null +++ b/AUTHENTICATION.md @@ -0,0 +1,315 @@ +# Talk2Me Authentication System + +This document describes the comprehensive user authentication and authorization system implemented for the Talk2Me application. + +## Overview + +The authentication system provides: +- User account management with roles (admin, user) +- JWT-based API authentication +- Session management for web interface +- API key authentication for programmatic access +- User-specific rate limiting +- Admin dashboard for user management +- Secure password hashing with bcrypt + +## Features + +### 1. User Management + +#### User Account Model +- **Email & Username**: Unique identifiers for each user +- **Password**: Securely hashed using bcrypt +- **API Key**: Unique key for each user (format: `tk_`) +- **Roles**: `admin` or `user` +- **Account Status**: Active, verified, suspended +- **Rate Limits**: Configurable per-user limits +- **Usage Tracking**: Tracks requests, translations, transcriptions, and TTS usage + +#### Admin Features +- Create, update, delete users +- Suspend/unsuspend accounts +- Reset passwords +- Manage user permissions +- View login history +- Monitor active sessions +- Bulk operations + +### 2. Authentication Methods + +#### JWT Authentication +- Access tokens (1 hour expiration) +- Refresh tokens (30 days expiration) +- Token blacklisting for revocation +- Secure token storage + +#### API Key Authentication +- Bearer token in `X-API-Key` header +- Query parameter fallback: `?api_key=tk_xxx` +- Per-key rate limiting + +#### Session Management +- Track active sessions per user +- Session expiration handling +- Multi-device support +- Session revocation + +### 3. Security Features + +#### Password Security +- Bcrypt hashing with salt +- Minimum 8 character requirement +- Password change tracking +- Failed login attempt tracking +- Account lockout after 5 failed attempts (30 minutes) + +#### Rate Limiting +- User-specific limits (per minute/hour/day) +- IP-based fallback for unauthenticated requests +- Admin users get 10x higher limits +- Endpoint-specific overrides + +#### Audit Trail +- Login history with IP and user agent +- Success/failure tracking +- Suspicious activity flagging +- Security event logging + +## Database Schema + +### Users Table +```sql +- id (UUID, primary key) +- email (unique) +- username (unique) +- password_hash +- api_key (unique) +- role (admin/user) +- is_active, is_verified, is_suspended +- rate limits (per_minute, per_hour, per_day) +- usage stats (total_requests, translations, etc.) +- timestamps (created_at, updated_at, last_login_at) +``` + +### Login History Table +```sql +- id (UUID) +- user_id (foreign key) +- login_at, logout_at +- login_method (password/api_key/jwt) +- success (boolean) +- ip_address, user_agent +- session_id, jwt_jti +``` + +### User Sessions Table +```sql +- id (UUID) +- session_id (unique) +- user_id (foreign key) +- access_token_jti, refresh_token_jti +- created_at, last_active_at, expires_at +- ip_address, user_agent +``` + +### Revoked Tokens Table +```sql +- id (UUID) +- jti (unique, token ID) +- token_type (access/refresh) +- user_id +- revoked_at, expires_at +- reason +``` + +## API Endpoints + +### Authentication Endpoints + +#### POST /api/auth/login +Login with username/email and password. +```json +{ + "username": "user@example.com", + "password": "password123" +} +``` + +Response: +```json +{ + "success": true, + "user": { ... }, + "tokens": { + "access_token": "eyJ...", + "refresh_token": "eyJ...", + "expires_in": 3600 + }, + "session_id": "uuid" +} +``` + +#### POST /api/auth/logout +Logout and revoke current token. + +#### POST /api/auth/refresh +Refresh access token using refresh token. + +#### GET /api/auth/profile +Get current user profile. + +#### PUT /api/auth/profile +Update user profile (name, settings). + +#### POST /api/auth/change-password +Change user password. + +#### POST /api/auth/regenerate-api-key +Generate new API key. + +### Admin User Management + +#### GET /api/auth/admin/users +List all users with filtering and pagination. + +#### POST /api/auth/admin/users +Create new user (admin only). + +#### GET /api/auth/admin/users/:id +Get user details with login history. + +#### PUT /api/auth/admin/users/:id +Update user details. + +#### DELETE /api/auth/admin/users/:id +Delete user account. + +#### POST /api/auth/admin/users/:id/suspend +Suspend user account. + +#### POST /api/auth/admin/users/:id/reset-password +Reset user password. + +## Usage Examples + +### Authenticating Requests + +#### Using JWT Token +```bash +curl -H "Authorization: Bearer eyJ..." \ + https://api.talk2me.app/translate +``` + +#### Using API Key +```bash +curl -H "X-API-Key: tk_your_api_key" \ + https://api.talk2me.app/translate +``` + +### Python Client Example +```python +import requests + +# Login and get token +response = requests.post('https://api.talk2me.app/api/auth/login', json={ + 'username': 'user@example.com', + 'password': 'password123' +}) +tokens = response.json()['tokens'] + +# Use token for requests +headers = {'Authorization': f"Bearer {tokens['access_token']}"} +translation = requests.post( + 'https://api.talk2me.app/translate', + headers=headers, + json={'text': 'Hello', 'target_lang': 'Spanish'} +) +``` + +## Setup Instructions + +### 1. Install Dependencies +```bash +pip install -r requirements.txt +``` + +### 2. Initialize Database +```bash +python init_auth_db.py +``` + +This will: +- Create all database tables +- Prompt you to create an admin user +- Display the admin's API key + +### 3. Configure Environment +Add to your `.env` file: +```env +JWT_SECRET_KEY=your-secret-key-change-in-production +DATABASE_URL=postgresql://user:pass@localhost/talk2me +``` + +### 4. Run Migrations (if needed) +```bash +alembic upgrade head +``` + +## Security Best Practices + +1. **JWT Secret**: Use a strong, random secret key in production +2. **HTTPS Only**: Always use HTTPS in production +3. **Rate Limiting**: Configure appropriate limits per user role +4. **Password Policy**: Enforce strong passwords +5. **Session Timeout**: Configure appropriate session durations +6. **Audit Logging**: Monitor login attempts and suspicious activity +7. **API Key Rotation**: Encourage regular API key rotation +8. **Database Security**: Use encrypted connections to database + +## Admin Dashboard + +Access the admin dashboard at `/admin/users` (requires admin login). + +Features: +- User list with search and filters +- User details with usage statistics +- Create/edit/delete users +- Suspend/unsuspend accounts +- View login history +- Monitor active sessions +- Bulk operations + +## Rate Limiting + +Default limits: +- **Regular Users**: 30/min, 500/hour, 5000/day +- **Admin Users**: 300/min, 5000/hour, 50000/day + +Endpoint-specific limits are configured in `user_rate_limiter.py`. + +## Troubleshooting + +### Common Issues + +1. **"Token expired"**: Refresh token using `/api/auth/refresh` +2. **"Account locked"**: Wait 30 minutes or contact admin +3. **"Rate limit exceeded"**: Check your usage limits +4. **"Invalid API key"**: Regenerate key in profile settings + +### Debug Mode +Enable debug logging: +```python +import logging +logging.getLogger('auth').setLevel(logging.DEBUG) +``` + +## Future Enhancements + +- [ ] OAuth2 integration (Google, GitHub) +- [ ] Two-factor authentication +- [ ] Email verification workflow +- [ ] Password reset via email +- [ ] User groups and team management +- [ ] Fine-grained permissions +- [ ] API key scopes +- [ ] Usage quotas and billing \ No newline at end of file diff --git a/DATABASE_INTEGRATION.md b/DATABASE_INTEGRATION.md new file mode 100644 index 0000000..09fd8c5 --- /dev/null +++ b/DATABASE_INTEGRATION.md @@ -0,0 +1,302 @@ +# Database Integration Guide + +This guide explains the Redis and PostgreSQL integration for the Talk2Me application. + +## Overview + +The Talk2Me application now uses: +- **PostgreSQL**: For persistent storage of translations, transcriptions, user preferences, and analytics +- **Redis**: For caching, session management, and rate limiting + +## Architecture + +### PostgreSQL Database Schema + +1. **translations** - Stores translation history + - Source and target text + - Languages + - Translation time and model used + - Session and user tracking + +2. **transcriptions** - Stores transcription history + - Transcribed text + - Detected language + - Audio metadata + - Performance metrics + +3. **user_preferences** - Stores user settings + - Preferred languages + - Voice preferences + - Usage statistics + +4. **usage_analytics** - Aggregated analytics + - Hourly and daily metrics + - Service performance + - Language pair statistics + +5. **api_keys** - API key management + - Rate limits + - Permissions + - Usage tracking + +### Redis Usage + +1. **Translation Cache** + - Key: `translation:{source_lang}:{target_lang}:{text_hash}` + - Expires: 24 hours + - Reduces API calls to Ollama + +2. **Session Management** + - Key: `session:{session_id}` + - Stores session data and resources + - Expires: 1 hour (configurable) + +3. **Rate Limiting** + - Token bucket implementation + - Per-client and global limits + - Sliding window tracking + +4. **Push Subscriptions** + - Set: `push_subscriptions` + - Individual subscriptions: `push_subscription:{id}` + +## Setup Instructions + +### Prerequisites + +1. Install PostgreSQL: + ```bash + # Ubuntu/Debian + sudo apt-get install postgresql postgresql-contrib + + # MacOS + brew install postgresql + ``` + +2. Install Redis: + ```bash + # Ubuntu/Debian + sudo apt-get install redis-server + + # MacOS + brew install redis + ``` + +3. Install Python dependencies: + ```bash + pip install -r requirements.txt + ``` + +### Quick Setup + +Run the setup script: +```bash +./setup_databases.sh +``` + +### Manual Setup + +1. Create PostgreSQL database: + ```bash + createdb talk2me + ``` + +2. Start Redis: + ```bash + redis-server + ``` + +3. Create .env file with database URLs: + ```env + DATABASE_URL=postgresql://username@localhost/talk2me + REDIS_URL=redis://localhost:6379/0 + ``` + +4. Initialize database: + ```bash + python database_init.py + ``` + +5. Run migrations: + ```bash + python migrations.py init + python migrations.py create "Initial migration" + python migrations.py run + ``` + +## Configuration + +### Environment Variables + +```env +# PostgreSQL +DATABASE_URL=postgresql://username:password@host:port/database +SQLALCHEMY_DATABASE_URI=${DATABASE_URL} +SQLALCHEMY_ENGINE_OPTIONS_POOL_SIZE=10 +SQLALCHEMY_ENGINE_OPTIONS_POOL_RECYCLE=3600 + +# Redis +REDIS_URL=redis://localhost:6379/0 +REDIS_DECODE_RESPONSES=false +REDIS_MAX_CONNECTIONS=50 +REDIS_SOCKET_TIMEOUT=5 + +# Session Management +MAX_SESSION_DURATION=3600 +MAX_SESSION_IDLE_TIME=900 +MAX_RESOURCES_PER_SESSION=100 +MAX_BYTES_PER_SESSION=104857600 +``` + +## Migration from In-Memory to Database + +### What Changed + +1. **Rate Limiting** + - Before: In-memory dictionaries + - After: Redis sorted sets and hashes + +2. **Session Management** + - Before: In-memory session storage + - After: Redis with automatic expiration + +3. **Translation Cache** + - Before: Client-side IndexedDB only + - After: Server-side Redis cache + client cache + +4. **Analytics** + - Before: No persistent analytics + - After: PostgreSQL aggregated metrics + +### Migration Steps + +1. Backup current app.py: + ```bash + cp app.py app_backup.py + ``` + +2. Use the new app with database support: + ```bash + cp app_with_db.py app.py + ``` + +3. Update any custom configurations in the new app.py + +## API Changes + +### New Endpoints + +- `/api/history/translations` - Get translation history +- `/api/history/transcriptions` - Get transcription history +- `/api/preferences` - Get/update user preferences +- `/api/analytics` - Get usage analytics + +### Enhanced Features + +1. **Translation Caching** + - Automatic server-side caching + - Reduced response time for repeated translations + +2. **Session Persistence** + - Sessions survive server restarts + - Better resource tracking + +3. **Improved Rate Limiting** + - Distributed rate limiting across multiple servers + - More accurate tracking + +## Performance Considerations + +1. **Database Indexes** + - Indexes on session_id, user_id, languages + - Composite indexes for common queries + +2. **Redis Memory Usage** + - Monitor with: `redis-cli info memory` + - Configure maxmemory policy + +3. **Connection Pooling** + - PostgreSQL: 10 connections default + - Redis: 50 connections default + +## Monitoring + +### PostgreSQL +```sql +-- Check database size +SELECT pg_database_size('talk2me'); + +-- Active connections +SELECT count(*) FROM pg_stat_activity; + +-- Slow queries +SELECT * FROM pg_stat_statements ORDER BY mean_time DESC LIMIT 10; +``` + +### Redis +```bash +# Memory usage +redis-cli info memory + +# Connected clients +redis-cli info clients + +# Monitor commands +redis-cli monitor +``` + +## Troubleshooting + +### Common Issues + +1. **PostgreSQL Connection Failed** + - Check if PostgreSQL is running: `sudo systemctl status postgresql` + - Verify DATABASE_URL in .env + - Check pg_hba.conf for authentication + +2. **Redis Connection Failed** + - Check if Redis is running: `redis-cli ping` + - Verify REDIS_URL in .env + - Check Redis logs: `sudo journalctl -u redis` + +3. **Migration Errors** + - Drop and recreate database if needed + - Check migration files in `migrations/` + - Run `python migrations.py init` to reinitialize + +## Backup and Restore + +### PostgreSQL Backup +```bash +# Backup +pg_dump talk2me > talk2me_backup.sql + +# Restore +psql talk2me < talk2me_backup.sql +``` + +### Redis Backup +```bash +# Backup (if persistence enabled) +redis-cli BGSAVE + +# Copy dump.rdb file +cp /var/lib/redis/dump.rdb redis_backup.rdb +``` + +## Security Notes + +1. **Database Credentials** + - Never commit .env file + - Use strong passwords + - Limit database user permissions + +2. **Redis Security** + - Consider enabling Redis AUTH + - Bind to localhost only + - Use SSL for remote connections + +3. **Data Privacy** + - Translations/transcriptions contain user data + - Implement data retention policies + - Consider encryption at rest \ No newline at end of file diff --git a/README.md b/README.md index 677ab12..94f9387 100644 --- a/README.md +++ b/README.md @@ -11,6 +11,7 @@ A production-ready, mobile-friendly web application that provides real-time tran - **Multi-Speaker Support**: Track and translate conversations with multiple participants - **Enterprise Security**: Comprehensive rate limiting, session management, and encrypted secrets - **Production Ready**: Docker support, load balancing, and extensive monitoring +- **Admin Dashboard**: Real-time analytics, performance monitoring, and system health tracking ## Table of Contents @@ -538,6 +539,47 @@ All admin endpoints require `X-Admin-Token` header. - `POST /admin/block-ip` - Block IP address - `GET /admin/logs/security` - Security events +## Admin Dashboard + +Talk2Me includes a comprehensive admin analytics dashboard for monitoring and managing the application. + +### Features + +- **Real-time Analytics**: Monitor requests, active sessions, and error rates +- **Performance Metrics**: Track response times, throughput, and resource usage +- **System Health**: Monitor Redis, PostgreSQL, and ML services status +- **Language Analytics**: View popular language pairs and usage patterns +- **Error Analysis**: Detailed error tracking with types and trends +- **Data Export**: Download analytics data in JSON format + +### Setup + +1. **Initialize Database**: + ```bash + python init_analytics_db.py + ``` + +2. **Configure Admin Token**: + ```bash + export ADMIN_TOKEN="your-secure-admin-token" + ``` + +3. **Access Dashboard**: + - Navigate to `https://yourdomain.com/admin` + - Enter your admin token + - View real-time analytics + +### Dashboard Sections + +- **Overview Cards**: Key metrics at a glance +- **Request Volume**: Visualize traffic patterns +- **Operations**: Translation and transcription statistics +- **Performance**: Response time percentiles (P95, P99) +- **Error Tracking**: Error types and recent issues +- **System Health**: Component status monitoring + +For detailed admin documentation, see [ADMIN_DASHBOARD.md](ADMIN_DASHBOARD.md). + ## Development ### TypeScript Development diff --git a/admin/__init__.py b/admin/__init__.py new file mode 100644 index 0000000..a37ee7a --- /dev/null +++ b/admin/__init__.py @@ -0,0 +1,534 @@ +from flask import Blueprint, request, jsonify, render_template, redirect, url_for, session +from functools import wraps +import os +import logging +import json +from datetime import datetime, timedelta +import redis +import psycopg2 +from psycopg2.extras import RealDictCursor +import time + +logger = logging.getLogger(__name__) + +# Create admin blueprint +admin_bp = Blueprint('admin', __name__, + template_folder='templates', + static_folder='static', + static_url_path='/admin/static') + +# Initialize Redis and PostgreSQL connections +redis_client = None +pg_conn = None + +def init_admin(app): + """Initialize admin module with app configuration""" + global redis_client, pg_conn + + try: + # Initialize Redis + redis_client = redis.from_url( + app.config.get('REDIS_URL', 'redis://localhost:6379/0'), + decode_responses=True + ) + redis_client.ping() + logger.info("Redis connection established for admin dashboard") + except Exception as e: + logger.error(f"Failed to connect to Redis: {e}") + redis_client = None + + try: + # Initialize PostgreSQL + pg_conn = psycopg2.connect( + app.config.get('DATABASE_URL', 'postgresql://localhost/talk2me') + ) + logger.info("PostgreSQL connection established for admin dashboard") + except Exception as e: + logger.error(f"Failed to connect to PostgreSQL: {e}") + pg_conn = None + +def admin_required(f): + """Decorator to require admin authentication""" + @wraps(f) + def decorated_function(*args, **kwargs): + # Check if user is logged in with admin role (from unified login) + user_role = session.get('user_role') + if user_role == 'admin': + return f(*args, **kwargs) + + # Also support the old admin token for backward compatibility + auth_token = request.headers.get('X-Admin-Token') + session_token = session.get('admin_token') + expected_token = os.environ.get('ADMIN_TOKEN', 'default-admin-token') + + if auth_token == expected_token or session_token == expected_token: + if auth_token == expected_token: + session['admin_token'] = expected_token + return f(*args, **kwargs) + + # For API endpoints, return JSON error + if request.path.startswith('/admin/api/'): + return jsonify({'error': 'Unauthorized'}), 401 + + # For web pages, redirect to unified login + return redirect(url_for('login', next=request.url)) + + return decorated_function + +@admin_bp.route('/login', methods=['GET', 'POST']) +def login(): + """Admin login - redirect to main login page""" + # Redirect to the unified login page + next_url = request.args.get('next', url_for('admin.dashboard')) + return redirect(url_for('login', next=next_url)) + +@admin_bp.route('/logout') +def logout(): + """Admin logout - redirect to main logout""" + # Clear all session data + session.clear() + return redirect(url_for('index')) + +@admin_bp.route('/') +@admin_bp.route('/dashboard') +@admin_required +def dashboard(): + """Main admin dashboard""" + return render_template('dashboard.html') + +@admin_bp.route('/users') +@admin_required +def users(): + """User management page""" + # The template is in the main templates folder, not admin/templates + return render_template('admin_users.html') + +# Analytics API endpoints +@admin_bp.route('/api/stats/overview') +@admin_required +def get_overview_stats(): + """Get overview statistics""" + try: + stats = { + 'requests': {'total': 0, 'today': 0, 'hour': 0}, + 'translations': {'total': 0, 'today': 0}, + 'transcriptions': {'total': 0, 'today': 0}, + 'active_sessions': 0, + 'error_rate': 0, + 'cache_hit_rate': 0, + 'system_health': check_system_health() + } + + # Get data from Redis + if redis_client: + try: + # Request counts + stats['requests']['total'] = int(redis_client.get('stats:requests:total') or 0) + stats['requests']['today'] = int(redis_client.get(f'stats:requests:daily:{datetime.now().strftime("%Y-%m-%d")}') or 0) + stats['requests']['hour'] = int(redis_client.get(f'stats:requests:hourly:{datetime.now().strftime("%Y-%m-%d-%H")}') or 0) + + # Operation counts + stats['translations']['total'] = int(redis_client.get('stats:translations:total') or 0) + stats['translations']['today'] = int(redis_client.get(f'stats:translations:daily:{datetime.now().strftime("%Y-%m-%d")}') or 0) + stats['transcriptions']['total'] = int(redis_client.get('stats:transcriptions:total') or 0) + stats['transcriptions']['today'] = int(redis_client.get(f'stats:transcriptions:daily:{datetime.now().strftime("%Y-%m-%d")}') or 0) + + # Active sessions + stats['active_sessions'] = len(redis_client.keys('session:*')) + + # Cache stats + cache_hits = int(redis_client.get('stats:cache:hits') or 0) + cache_misses = int(redis_client.get('stats:cache:misses') or 0) + if cache_hits + cache_misses > 0: + stats['cache_hit_rate'] = round((cache_hits / (cache_hits + cache_misses)) * 100, 2) + + # Error rate + total_requests = stats['requests']['today'] + errors_today = int(redis_client.get(f'stats:errors:daily:{datetime.now().strftime("%Y-%m-%d")}') or 0) + if total_requests > 0: + stats['error_rate'] = round((errors_today / total_requests) * 100, 2) + + except Exception as e: + logger.error(f"Error fetching Redis stats: {e}") + + return jsonify(stats) + except Exception as e: + logger.error(f"Error in get_overview_stats: {e}") + return jsonify({'error': str(e)}), 500 + +@admin_bp.route('/api/stats/requests/') +@admin_required +def get_request_stats(timeframe): + """Get request statistics for different timeframes""" + try: + if timeframe not in ['minute', 'hour', 'day']: + return jsonify({'error': 'Invalid timeframe'}), 400 + + data = [] + labels = [] + + if redis_client: + now = datetime.now() + + if timeframe == 'minute': + # Last 60 minutes + for i in range(59, -1, -1): + time_key = (now - timedelta(minutes=i)).strftime('%Y-%m-%d-%H-%M') + count = int(redis_client.get(f'stats:requests:minute:{time_key}') or 0) + data.append(count) + labels.append((now - timedelta(minutes=i)).strftime('%H:%M')) + + elif timeframe == 'hour': + # Last 24 hours + for i in range(23, -1, -1): + time_key = (now - timedelta(hours=i)).strftime('%Y-%m-%d-%H') + count = int(redis_client.get(f'stats:requests:hourly:{time_key}') or 0) + data.append(count) + labels.append((now - timedelta(hours=i)).strftime('%H:00')) + + elif timeframe == 'day': + # Last 30 days + for i in range(29, -1, -1): + time_key = (now - timedelta(days=i)).strftime('%Y-%m-%d') + count = int(redis_client.get(f'stats:requests:daily:{time_key}') or 0) + data.append(count) + labels.append((now - timedelta(days=i)).strftime('%m/%d')) + + return jsonify({ + 'labels': labels, + 'data': data, + 'timeframe': timeframe + }) + except Exception as e: + logger.error(f"Error in get_request_stats: {e}") + return jsonify({'error': str(e)}), 500 + +@admin_bp.route('/api/stats/operations') +@admin_required +def get_operation_stats(): + """Get translation and transcription statistics""" + try: + stats = { + 'translations': {'data': [], 'labels': []}, + 'transcriptions': {'data': [], 'labels': []}, + 'language_pairs': {}, + 'response_times': {'translation': [], 'transcription': []} + } + + if redis_client: + now = datetime.now() + + # Get daily stats for last 7 days + for i in range(6, -1, -1): + date_key = (now - timedelta(days=i)).strftime('%Y-%m-%d') + date_label = (now - timedelta(days=i)).strftime('%m/%d') + + # Translation counts + trans_count = int(redis_client.get(f'stats:translations:daily:{date_key}') or 0) + stats['translations']['data'].append(trans_count) + stats['translations']['labels'].append(date_label) + + # Transcription counts + transcr_count = int(redis_client.get(f'stats:transcriptions:daily:{date_key}') or 0) + stats['transcriptions']['data'].append(transcr_count) + stats['transcriptions']['labels'].append(date_label) + + # Get language pair statistics + lang_pairs = redis_client.hgetall('stats:language_pairs') or {} + stats['language_pairs'] = {k: int(v) for k, v in lang_pairs.items()} + + # Get response times (last 100 operations) + trans_times = redis_client.lrange('stats:response_times:translation', 0, 99) + transcr_times = redis_client.lrange('stats:response_times:transcription', 0, 99) + + stats['response_times']['translation'] = [float(t) for t in trans_times[:20]] + stats['response_times']['transcription'] = [float(t) for t in transcr_times[:20]] + + return jsonify(stats) + except Exception as e: + logger.error(f"Error in get_operation_stats: {e}") + return jsonify({'error': str(e)}), 500 + +@admin_bp.route('/api/stats/errors') +@admin_required +def get_error_stats(): + """Get error statistics""" + try: + stats = { + 'error_types': {}, + 'error_timeline': {'data': [], 'labels': []}, + 'recent_errors': [] + } + + if pg_conn: + try: + with pg_conn.cursor(cursor_factory=RealDictCursor) as cursor: + # Get error types distribution + cursor.execute(""" + SELECT error_type, COUNT(*) as count + FROM error_logs + WHERE created_at > NOW() - INTERVAL '24 hours' + GROUP BY error_type + ORDER BY count DESC + LIMIT 10 + """) + error_types = cursor.fetchall() + stats['error_types'] = {row['error_type']: row['count'] for row in error_types} + + # Get error timeline (hourly for last 24 hours) + cursor.execute(""" + SELECT + DATE_TRUNC('hour', created_at) as hour, + COUNT(*) as count + FROM error_logs + WHERE created_at > NOW() - INTERVAL '24 hours' + GROUP BY hour + ORDER BY hour + """) + timeline = cursor.fetchall() + + for row in timeline: + stats['error_timeline']['labels'].append(row['hour'].strftime('%H:00')) + stats['error_timeline']['data'].append(row['count']) + + # Get recent errors + cursor.execute(""" + SELECT + error_type, + error_message, + endpoint, + created_at + FROM error_logs + ORDER BY created_at DESC + LIMIT 10 + """) + recent = cursor.fetchall() + stats['recent_errors'] = [ + { + 'type': row['error_type'], + 'message': row['error_message'][:100], + 'endpoint': row['endpoint'], + 'time': row['created_at'].isoformat() + } + for row in recent + ] + except Exception as e: + logger.error(f"Error querying PostgreSQL: {e}") + + # Fallback to Redis if PostgreSQL fails + if not stats['error_types'] and redis_client: + error_types = redis_client.hgetall('stats:error_types') or {} + stats['error_types'] = {k: int(v) for k, v in error_types.items()} + + # Get hourly error counts + now = datetime.now() + for i in range(23, -1, -1): + hour_key = (now - timedelta(hours=i)).strftime('%Y-%m-%d-%H') + count = int(redis_client.get(f'stats:errors:hourly:{hour_key}') or 0) + stats['error_timeline']['data'].append(count) + stats['error_timeline']['labels'].append((now - timedelta(hours=i)).strftime('%H:00')) + + return jsonify(stats) + except Exception as e: + logger.error(f"Error in get_error_stats: {e}") + return jsonify({'error': str(e)}), 500 + +@admin_bp.route('/api/stats/performance') +@admin_required +def get_performance_stats(): + """Get performance metrics""" + try: + stats = { + 'response_times': { + 'translation': {'avg': 0, 'p95': 0, 'p99': 0}, + 'transcription': {'avg': 0, 'p95': 0, 'p99': 0}, + 'tts': {'avg': 0, 'p95': 0, 'p99': 0} + }, + 'throughput': {'data': [], 'labels': []}, + 'slow_requests': [] + } + + if redis_client: + # Calculate response time percentiles + for operation in ['translation', 'transcription', 'tts']: + times = redis_client.lrange(f'stats:response_times:{operation}', 0, -1) + if times: + times = sorted([float(t) for t in times]) + stats['response_times'][operation]['avg'] = round(sum(times) / len(times), 2) + stats['response_times'][operation]['p95'] = round(times[int(len(times) * 0.95)], 2) + stats['response_times'][operation]['p99'] = round(times[int(len(times) * 0.99)], 2) + + # Get throughput (requests per minute for last hour) + now = datetime.now() + for i in range(59, -1, -1): + time_key = (now - timedelta(minutes=i)).strftime('%Y-%m-%d-%H-%M') + count = int(redis_client.get(f'stats:requests:minute:{time_key}') or 0) + stats['throughput']['data'].append(count) + stats['throughput']['labels'].append((now - timedelta(minutes=i)).strftime('%H:%M')) + + # Get slow requests + slow_requests = redis_client.lrange('stats:slow_requests', 0, 9) + stats['slow_requests'] = [json.loads(req) for req in slow_requests if req] + + return jsonify(stats) + except Exception as e: + logger.error(f"Error in get_performance_stats: {e}") + return jsonify({'error': str(e)}), 500 + +@admin_bp.route('/api/export/') +@admin_required +def export_data(data_type): + """Export analytics data""" + try: + if data_type not in ['requests', 'errors', 'performance', 'all']: + return jsonify({'error': 'Invalid data type'}), 400 + + export_data = { + 'export_time': datetime.now().isoformat(), + 'data_type': data_type + } + + if data_type in ['requests', 'all']: + # Export request data + request_data = [] + if redis_client: + # Get daily stats for last 30 days + now = datetime.now() + for i in range(29, -1, -1): + date_key = (now - timedelta(days=i)).strftime('%Y-%m-%d') + request_data.append({ + 'date': date_key, + 'requests': int(redis_client.get(f'stats:requests:daily:{date_key}') or 0), + 'translations': int(redis_client.get(f'stats:translations:daily:{date_key}') or 0), + 'transcriptions': int(redis_client.get(f'stats:transcriptions:daily:{date_key}') or 0), + 'errors': int(redis_client.get(f'stats:errors:daily:{date_key}') or 0) + }) + export_data['requests'] = request_data + + if data_type in ['errors', 'all']: + # Export error data from PostgreSQL + error_data = [] + if pg_conn: + try: + with pg_conn.cursor(cursor_factory=RealDictCursor) as cursor: + cursor.execute(""" + SELECT * FROM error_logs + WHERE created_at > NOW() - INTERVAL '7 days' + ORDER BY created_at DESC + """) + errors = cursor.fetchall() + error_data = [dict(row) for row in errors] + except Exception as e: + logger.error(f"Error exporting from PostgreSQL: {e}") + export_data['errors'] = error_data + + if data_type in ['performance', 'all']: + # Export performance data + perf_data = { + 'response_times': {}, + 'slow_requests': [] + } + if redis_client: + for op in ['translation', 'transcription', 'tts']: + times = redis_client.lrange(f'stats:response_times:{op}', 0, -1) + perf_data['response_times'][op] = [float(t) for t in times] + + slow_reqs = redis_client.lrange('stats:slow_requests', 0, -1) + perf_data['slow_requests'] = [json.loads(req) for req in slow_reqs if req] + + export_data['performance'] = perf_data + + # Return as downloadable JSON + response = jsonify(export_data) + response.headers['Content-Disposition'] = f'attachment; filename=talk2me_analytics_{data_type}_{datetime.now().strftime("%Y%m%d_%H%M%S")}.json' + return response + + except Exception as e: + logger.error(f"Error in export_data: {e}") + return jsonify({'error': str(e)}), 500 + +def check_system_health(): + """Check health of system components""" + health = { + 'redis': 'unknown', + 'postgresql': 'unknown', + 'overall': 'healthy' + } + + # Check Redis + if redis_client: + try: + redis_client.ping() + health['redis'] = 'healthy' + except: + health['redis'] = 'unhealthy' + health['overall'] = 'degraded' + else: + health['redis'] = 'not_configured' + health['overall'] = 'degraded' + + # Check PostgreSQL + if pg_conn: + try: + with pg_conn.cursor() as cursor: + cursor.execute("SELECT 1") + cursor.fetchone() + health['postgresql'] = 'healthy' + except: + health['postgresql'] = 'unhealthy' + health['overall'] = 'degraded' + else: + health['postgresql'] = 'not_configured' + health['overall'] = 'degraded' + + return health + +# WebSocket support for real-time updates (using Server-Sent Events as fallback) +@admin_bp.route('/api/stream/updates') +@admin_required +def stream_updates(): + """Stream real-time updates using Server-Sent Events""" + def generate(): + last_update = time.time() + + while True: + # Send update every 5 seconds + if time.time() - last_update > 5: + try: + # Get current stats + stats = { + 'timestamp': datetime.now().isoformat(), + 'requests_per_minute': 0, + 'active_sessions': 0, + 'recent_errors': 0 + } + + if redis_client: + # Current requests per minute + current_minute = datetime.now().strftime('%Y-%m-%d-%H-%M') + stats['requests_per_minute'] = int(redis_client.get(f'stats:requests:minute:{current_minute}') or 0) + + # Active sessions + stats['active_sessions'] = len(redis_client.keys('session:*')) + + # Recent errors + current_hour = datetime.now().strftime('%Y-%m-%d-%H') + stats['recent_errors'] = int(redis_client.get(f'stats:errors:hourly:{current_hour}') or 0) + + yield f"data: {json.dumps(stats)}\n\n" + last_update = time.time() + + except Exception as e: + logger.error(f"Error in stream_updates: {e}") + yield f"data: {json.dumps({'error': str(e)})}\n\n" + + time.sleep(1) + + return app.response_class( + generate(), + mimetype='text/event-stream', + headers={ + 'Cache-Control': 'no-cache', + 'X-Accel-Buffering': 'no' + } + ) \ No newline at end of file diff --git a/admin/static/css/admin.css b/admin/static/css/admin.css new file mode 100644 index 0000000..0a8045d --- /dev/null +++ b/admin/static/css/admin.css @@ -0,0 +1,192 @@ +/* Admin Dashboard Styles */ + +body { + background-color: #f8f9fa; + padding-top: 56px; /* For fixed navbar */ +} + +/* Cards */ +.card { + border: none; + box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075); + transition: transform 0.2s; +} + +.card:hover { + transform: translateY(-2px); + box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15); +} + +.card-header { + background-color: #fff; + border-bottom: 1px solid #e3e6f0; + font-weight: 600; +} + +/* Status Badges */ +.badge { + padding: 0.375rem 0.75rem; + font-weight: normal; +} + +.badge.bg-success { + background-color: #1cc88a !important; +} + +.badge.bg-warning { + background-color: #f6c23e !important; + color: #000; +} + +.badge.bg-danger { + background-color: #e74a3b !important; +} + +/* Charts */ +canvas { + max-width: 100%; +} + +/* Tables */ +.table { + font-size: 0.875rem; +} + +.table th { + font-weight: 600; + text-transform: uppercase; + font-size: 0.75rem; + color: #6c757d; +} + +/* Login Page */ +.login-container { + min-height: 100vh; + display: flex; + align-items: center; + justify-content: center; +} + +/* Responsive adjustments */ +@media (max-width: 768px) { + .card-body h2 { + font-size: 1.5rem; + } + + .btn-group { + display: flex; + flex-direction: column; + } + + .btn-group .btn { + border-radius: 0.25rem !important; + margin: 2px 0; + } +} + +/* Loading spinners */ +.spinner-border-sm { + width: 1rem; + height: 1rem; +} + +/* Error list */ +.error-item { + padding: 0.5rem; + border-bottom: 1px solid #dee2e6; +} + +.error-item:last-child { + border-bottom: none; +} + +.error-type { + font-weight: 600; + color: #e74a3b; +} + +.error-time { + font-size: 0.75rem; + color: #6c757d; +} + +/* Toast notifications */ +.toast { + background-color: white; + box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15); +} + +/* Animations */ +@keyframes pulse { + 0% { + opacity: 1; + } + 50% { + opacity: 0.5; + } + 100% { + opacity: 1; + } +} + +.updating { + animation: pulse 1s infinite; +} + +/* Dark mode support */ +@media (prefers-color-scheme: dark) { + body { + background-color: #1a1a1a; + color: #e0e0e0; + } + + .card { + background-color: #2a2a2a; + color: #e0e0e0; + } + + .card-header { + background-color: #2a2a2a; + border-bottom-color: #3a3a3a; + } + + .table { + color: #e0e0e0; + } + + .table-striped tbody tr:nth-of-type(odd) { + background-color: rgba(255, 255, 255, 0.05); + } + + .form-control { + background-color: #3a3a3a; + border-color: #4a4a4a; + color: #e0e0e0; + } +} + +/* Performance optimization */ +.chart-container { + position: relative; + height: 40vh; + width: 100%; +} + +/* Scrollbar styling */ +::-webkit-scrollbar { + width: 8px; + height: 8px; +} + +::-webkit-scrollbar-track { + background: #f1f1f1; +} + +::-webkit-scrollbar-thumb { + background: #888; + border-radius: 4px; +} + +::-webkit-scrollbar-thumb:hover { + background: #555; +} \ No newline at end of file diff --git a/admin/static/js/admin.js b/admin/static/js/admin.js new file mode 100644 index 0000000..08118df --- /dev/null +++ b/admin/static/js/admin.js @@ -0,0 +1,519 @@ +// Admin Dashboard JavaScript + +// Global variables +let charts = {}; +let currentTimeframe = 'minute'; +let eventSource = null; + +// Chart.js default configuration +Chart.defaults.responsive = true; +Chart.defaults.maintainAspectRatio = false; + +// Initialize dashboard +function initializeDashboard() { + // Initialize all charts + initializeCharts(); + + // Set up event handlers + setupEventHandlers(); +} + +// Initialize all charts +function initializeCharts() { + // Request Volume Chart + const requestCtx = document.getElementById('requestChart').getContext('2d'); + charts.request = new Chart(requestCtx, { + type: 'line', + data: { + labels: [], + datasets: [{ + label: 'Requests', + data: [], + borderColor: 'rgb(75, 192, 192)', + backgroundColor: 'rgba(75, 192, 192, 0.1)', + tension: 0.1 + }] + }, + options: { + scales: { + y: { + beginAtZero: true + } + }, + plugins: { + legend: { + display: false + } + } + } + }); + + // Language Pairs Chart + const languageCtx = document.getElementById('languageChart').getContext('2d'); + charts.language = new Chart(languageCtx, { + type: 'doughnut', + data: { + labels: [], + datasets: [{ + data: [], + backgroundColor: [ + '#FF6384', + '#36A2EB', + '#FFCE56', + '#4BC0C0', + '#9966FF', + '#FF9F40' + ] + }] + }, + options: { + plugins: { + legend: { + position: 'bottom' + } + } + } + }); + + // Operations Chart + const operationsCtx = document.getElementById('operationsChart').getContext('2d'); + charts.operations = new Chart(operationsCtx, { + type: 'bar', + data: { + labels: [], + datasets: [ + { + label: 'Translations', + data: [], + backgroundColor: 'rgba(54, 162, 235, 0.8)' + }, + { + label: 'Transcriptions', + data: [], + backgroundColor: 'rgba(255, 159, 64, 0.8)' + } + ] + }, + options: { + scales: { + y: { + beginAtZero: true + } + } + } + }); + + // Response Time Chart + const responseCtx = document.getElementById('responseTimeChart').getContext('2d'); + charts.responseTime = new Chart(responseCtx, { + type: 'line', + data: { + labels: ['Translation', 'Transcription', 'TTS'], + datasets: [ + { + label: 'Average', + data: [], + borderColor: 'rgb(75, 192, 192)', + backgroundColor: 'rgba(75, 192, 192, 0.2)' + }, + { + label: 'P95', + data: [], + borderColor: 'rgb(255, 206, 86)', + backgroundColor: 'rgba(255, 206, 86, 0.2)' + }, + { + label: 'P99', + data: [], + borderColor: 'rgb(255, 99, 132)', + backgroundColor: 'rgba(255, 99, 132, 0.2)' + } + ] + }, + options: { + scales: { + y: { + beginAtZero: true, + title: { + display: true, + text: 'Response Time (ms)' + } + } + } + } + }); + + // Error Type Chart + const errorCtx = document.getElementById('errorTypeChart').getContext('2d'); + charts.errorType = new Chart(errorCtx, { + type: 'pie', + data: { + labels: [], + datasets: [{ + data: [], + backgroundColor: [ + '#e74a3b', + '#f6c23e', + '#4e73df', + '#1cc88a', + '#36b9cc', + '#858796' + ] + }] + }, + options: { + plugins: { + legend: { + position: 'right' + } + } + } + }); +} + +// Load overview statistics +function loadOverviewStats() { + $.ajax({ + url: '/admin/api/stats/overview', + method: 'GET', + success: function(data) { + // Update cards + $('#total-requests').text(data.requests.total.toLocaleString()); + $('#today-requests').text(data.requests.today.toLocaleString()); + $('#active-sessions').text(data.active_sessions); + $('#error-rate').text(data.error_rate + '%'); + $('#cache-hit-rate').text(data.cache_hit_rate + '%'); + + // Update system health + updateSystemHealth(data.system_health); + }, + error: function(xhr, status, error) { + console.error('Failed to load overview stats:', error); + showToast('Failed to load overview statistics', 'error'); + } + }); +} + +// Update system health indicators +function updateSystemHealth(health) { + // Redis status + const redisStatus = $('#redis-status'); + redisStatus.removeClass('bg-success bg-warning bg-danger'); + if (health.redis === 'healthy') { + redisStatus.addClass('bg-success').text('Healthy'); + } else if (health.redis === 'not_configured') { + redisStatus.addClass('bg-warning').text('Not Configured'); + } else { + redisStatus.addClass('bg-danger').text('Unhealthy'); + } + + // PostgreSQL status + const pgStatus = $('#postgresql-status'); + pgStatus.removeClass('bg-success bg-warning bg-danger'); + if (health.postgresql === 'healthy') { + pgStatus.addClass('bg-success').text('Healthy'); + } else if (health.postgresql === 'not_configured') { + pgStatus.addClass('bg-warning').text('Not Configured'); + } else { + pgStatus.addClass('bg-danger').text('Unhealthy'); + } + + // ML services status (check via main app health endpoint) + $.ajax({ + url: '/health/detailed', + method: 'GET', + success: function(data) { + const mlStatus = $('#ml-status'); + mlStatus.removeClass('bg-success bg-warning bg-danger'); + + if (data.components.whisper.status === 'healthy' && + data.components.tts.status === 'healthy') { + mlStatus.addClass('bg-success').text('Healthy'); + } else if (data.status === 'degraded') { + mlStatus.addClass('bg-warning').text('Degraded'); + } else { + mlStatus.addClass('bg-danger').text('Unhealthy'); + } + } + }); +} + +// Load request chart data +function loadRequestChart(timeframe) { + currentTimeframe = timeframe; + + // Update button states + $('.btn-group button').removeClass('active'); + $(`button[onclick="updateRequestChart('${timeframe}')"]`).addClass('active'); + + $.ajax({ + url: `/admin/api/stats/requests/${timeframe}`, + method: 'GET', + success: function(data) { + charts.request.data.labels = data.labels; + charts.request.data.datasets[0].data = data.data; + charts.request.update(); + }, + error: function(xhr, status, error) { + console.error('Failed to load request chart:', error); + showToast('Failed to load request data', 'error'); + } + }); +} + +// Update request chart +function updateRequestChart(timeframe) { + loadRequestChart(timeframe); +} + +// Load operation statistics +function loadOperationStats() { + $.ajax({ + url: '/admin/api/stats/operations', + method: 'GET', + success: function(data) { + // Update operations chart + charts.operations.data.labels = data.translations.labels; + charts.operations.data.datasets[0].data = data.translations.data; + charts.operations.data.datasets[1].data = data.transcriptions.data; + charts.operations.update(); + + // Update language pairs chart + const langPairs = Object.entries(data.language_pairs) + .sort((a, b) => b[1] - a[1]) + .slice(0, 6); // Top 6 language pairs + + charts.language.data.labels = langPairs.map(pair => pair[0]); + charts.language.data.datasets[0].data = langPairs.map(pair => pair[1]); + charts.language.update(); + }, + error: function(xhr, status, error) { + console.error('Failed to load operation stats:', error); + showToast('Failed to load operation data', 'error'); + } + }); +} + +// Load error statistics +function loadErrorStats() { + $.ajax({ + url: '/admin/api/stats/errors', + method: 'GET', + success: function(data) { + // Update error type chart + const errorTypes = Object.entries(data.error_types) + .sort((a, b) => b[1] - a[1]) + .slice(0, 6); + + charts.errorType.data.labels = errorTypes.map(type => type[0]); + charts.errorType.data.datasets[0].data = errorTypes.map(type => type[1]); + charts.errorType.update(); + + // Update recent errors list + updateRecentErrors(data.recent_errors); + }, + error: function(xhr, status, error) { + console.error('Failed to load error stats:', error); + showToast('Failed to load error data', 'error'); + } + }); +} + +// Update recent errors list +function updateRecentErrors(errors) { + const errorsList = $('#recent-errors-list'); + + if (errors.length === 0) { + errorsList.html('

No recent errors

'); + return; + } + + let html = ''; + errors.forEach(error => { + const time = new Date(error.time).toLocaleString(); + html += ` +
+
${error.type}
+
${error.endpoint}
+
${error.message}
+
${time}
+
+ `; + }); + + errorsList.html(html); +} + +// Load performance statistics +function loadPerformanceStats() { + $.ajax({ + url: '/admin/api/stats/performance', + method: 'GET', + success: function(data) { + // Update response time chart + const operations = ['translation', 'transcription', 'tts']; + const avgData = operations.map(op => data.response_times[op].avg); + const p95Data = operations.map(op => data.response_times[op].p95); + const p99Data = operations.map(op => data.response_times[op].p99); + + charts.responseTime.data.datasets[0].data = avgData; + charts.responseTime.data.datasets[1].data = p95Data; + charts.responseTime.data.datasets[2].data = p99Data; + charts.responseTime.update(); + + // Update performance table + updatePerformanceTable(data.response_times); + }, + error: function(xhr, status, error) { + console.error('Failed to load performance stats:', error); + showToast('Failed to load performance data', 'error'); + } + }); +} + +// Update performance table +function updatePerformanceTable(responseData) { + const tbody = $('#performance-table'); + let html = ''; + + const operations = { + 'translation': 'Translation', + 'transcription': 'Transcription', + 'tts': 'Text-to-Speech' + }; + + for (const [key, label] of Object.entries(operations)) { + const data = responseData[key]; + html += ` + + ${label} + ${data.avg || '-'} + ${data.p95 || '-'} + ${data.p99 || '-'} + + `; + } + + tbody.html(html); +} + +// Start real-time updates +function startRealtimeUpdates() { + if (eventSource) { + eventSource.close(); + } + + eventSource = new EventSource('/admin/api/stream/updates'); + + eventSource.onmessage = function(event) { + const data = JSON.parse(event.data); + + // Update real-time metrics + if (data.requests_per_minute !== undefined) { + $('#requests-per-minute').text(data.requests_per_minute); + } + + if (data.active_sessions !== undefined) { + $('#active-sessions').text(data.active_sessions); + } + + // Update last update time + $('#last-update').text('Just now'); + + // Show update indicator + $('#update-status').text('Connected').removeClass('text-danger').addClass('text-success'); + }; + + eventSource.onerror = function(error) { + console.error('EventSource error:', error); + $('#update-status').text('Disconnected').removeClass('text-success').addClass('text-danger'); + + // Reconnect after 5 seconds + setTimeout(startRealtimeUpdates, 5000); + }; +} + +// Export data function +function exportData(dataType) { + window.location.href = `/admin/api/export/${dataType}`; +} + +// Show toast notification +function showToast(message, type = 'info') { + const toast = $('#update-toast'); + const toastBody = toast.find('.toast-body'); + + toastBody.removeClass('text-success text-danger text-warning'); + + if (type === 'success') { + toastBody.addClass('text-success'); + } else if (type === 'error') { + toastBody.addClass('text-danger'); + } else if (type === 'warning') { + toastBody.addClass('text-warning'); + } + + toastBody.text(message); + + const bsToast = new bootstrap.Toast(toast[0]); + bsToast.show(); +} + +// Setup event handlers +function setupEventHandlers() { + // Auto-refresh toggle + $('#auto-refresh').on('change', function() { + if ($(this).prop('checked')) { + startAutoRefresh(); + } else { + stopAutoRefresh(); + } + }); + + // Export buttons + $('.export-btn').on('click', function() { + const dataType = $(this).data('type'); + exportData(dataType); + }); +} + +// Auto-refresh functionality +let refreshIntervals = {}; + +function startAutoRefresh() { + refreshIntervals.overview = setInterval(loadOverviewStats, 10000); + refreshIntervals.operations = setInterval(loadOperationStats, 30000); + refreshIntervals.errors = setInterval(loadErrorStats, 60000); + refreshIntervals.performance = setInterval(loadPerformanceStats, 30000); +} + +function stopAutoRefresh() { + Object.values(refreshIntervals).forEach(interval => clearInterval(interval)); + refreshIntervals = {}; +} + +// Utility functions +function formatBytes(bytes, decimals = 2) { + if (bytes === 0) return '0 Bytes'; + + const k = 1024; + const dm = decimals < 0 ? 0 : decimals; + const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB']; + + const i = Math.floor(Math.log(bytes) / Math.log(k)); + + return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i]; +} + +function formatDuration(ms) { + if (ms < 1000) return ms + 'ms'; + if (ms < 60000) return (ms / 1000).toFixed(1) + 's'; + return (ms / 60000).toFixed(1) + 'm'; +} + +// Initialize on page load +$(document).ready(function() { + if ($('#requestChart').length > 0) { + initializeDashboard(); + } +}); \ No newline at end of file diff --git a/admin/templates/base.html b/admin/templates/base.html new file mode 100644 index 0000000..d14830b --- /dev/null +++ b/admin/templates/base.html @@ -0,0 +1,75 @@ + + + + + + {% block title %}Talk2Me Admin Dashboard{% endblock %} + + + + + + + + + + + + + + {% block extra_css %}{% endblock %} + + + + + + +
+ {% block content %}{% endblock %} +
+ + + + + + + + + + + {% block extra_js %}{% endblock %} + + \ No newline at end of file diff --git a/admin/templates/dashboard.html b/admin/templates/dashboard.html new file mode 100644 index 0000000..7f8cc13 --- /dev/null +++ b/admin/templates/dashboard.html @@ -0,0 +1,277 @@ +{% extends "base.html" %} + +{% block title %}Dashboard - Talk2Me Admin{% endblock %} + +{% block content %} + +
+
+
+
+
Quick Actions
+
+ + Manage Users + + + +
+
+
+
+
+ + +
+
+
+
+
Total Requests
+

+ +

+

Today: -

+
+
+
+ +
+
+
+
Active Sessions
+

+ +

+

Live users

+
+
+
+ +
+
+
+
Error Rate
+

+ +

+

Last 24 hours

+
+
+
+ +
+
+
+
Cache Hit Rate
+

+ +

+

Performance metric

+
+
+
+
+ + +
+
+
+
+
System Health
+
+
+
+
+
+ +
+
Redis
+ Checking... +
+
+
+
+
+ +
+
PostgreSQL
+ Checking... +
+
+
+
+
+ +
+
Whisper/TTS
+ Checking... +
+
+
+
+
+
+
+
+ + +
+
+
+
+
Request Volume
+
+ + + +
+
+
+ +
+
+
+ +
+
+
+
Language Pairs
+
+
+ +
+
+
+
+ + +
+
+
+
+
Operations
+
+
+ +
+
+
+ +
+
+
+
Response Times (ms)
+
+
+ +
+
+
+
+ + +
+
+
+
+
Error Types
+
+
+ +
+
+
+ +
+
+
+
Recent Errors
+
+
+
+
+ +
+
+
+
+
+
+ + +
+
+
+
+
Performance Metrics
+
+
+
+ + + + + + + + + + + + + + +
OperationAverage (ms)95th Percentile (ms)99th Percentile (ms)
+ +
+
+
+
+
+
+ + +
+ +
+ +{% endblock %} + +{% block extra_js %} + +{% endblock %} \ No newline at end of file diff --git a/admin/templates/dashboard_simple.html b/admin/templates/dashboard_simple.html new file mode 100644 index 0000000..601f0a2 --- /dev/null +++ b/admin/templates/dashboard_simple.html @@ -0,0 +1,120 @@ +{% extends "base.html" %} + +{% block title %}Dashboard - Talk2Me Admin{% endblock %} + +{% block content %} + + + + +
+
+
+
+
System Status
+

+ Online +

+ Talk2Me API is running +
+
+
+ +
+
+
+
Admin Access
+

+ Authenticated +

+ You are logged in as admin +
+
+
+ +
+
+
+
Services
+

+ Redis: Not configured
+ PostgreSQL: Not configured +

+
+
+
+
+ + +
+
+
Available Actions
+
+
+

In simple mode, you can:

+
    +
  • Access the Talk2Me API with admin privileges
    • +
  • View system health status
    • +
  • Logout from the admin session
    • +
+ +

To enable full features, set up the following services:

+
    +
  1. Redis: For caching, rate limiting, and session management
    2. +
  2. PostgreSQL: For persistent storage of analytics and user data
    3. +
+ +
+ Logout +
+
+
+ + +
+
+
Quick Setup Guide
+
+
+
1. Install Redis:
+ 
# Ubuntu/Debian
+sudo apt-get install redis-server
+sudo systemctl start redis
+
+# macOS
+brew install redis
+brew services start redis
+ +
2. Install PostgreSQL:
+ 
# Ubuntu/Debian
+sudo apt-get install postgresql
+sudo systemctl start postgresql
+
+# macOS
+brew install postgresql
+brew services start postgresql
+ +
3. Configure Environment:
+ 
# Add to .env file
+REDIS_URL=redis://localhost:6379/0
+DATABASE_URL=postgresql://user:pass@localhost/talk2me
+ +
4. Initialize Database:
+ 
python init_auth_db.py
+ +

After completing these steps, restart the Talk2Me server to enable full admin features.

+
+
+{% endblock %} + +{% block scripts %} + +{% endblock %} \ No newline at end of file diff --git a/admin/templates/login.html b/admin/templates/login.html new file mode 100644 index 0000000..47cb54e --- /dev/null +++ b/admin/templates/login.html @@ -0,0 +1,35 @@ +{% extends "base.html" %} + +{% block title %}Admin Login - Talk2Me{% endblock %} + +{% block content %} +
+
+
+
+

+ Admin Login +

+ + {% if error %} + + {% endif %} + +
+
+ + +
Enter your admin access token
+
+ + +
+
+
+
+
+{% endblock %} \ No newline at end of file diff --git a/admin_loader.py b/admin_loader.py new file mode 100644 index 0000000..b0dccd1 --- /dev/null +++ b/admin_loader.py @@ -0,0 +1,47 @@ +""" +Dynamic admin module loader that chooses between full and simple admin based on service availability +""" +import os +import logging +from dotenv import load_dotenv + +# Load environment variables +load_dotenv() + +logger = logging.getLogger(__name__) + +def load_admin_module(): + """ + Dynamically load admin module based on service availability + Returns (admin_bp, init_admin) tuple + """ + # Check if we should force simple mode + if os.environ.get('ADMIN_SIMPLE_MODE', '').lower() in ('1', 'true', 'yes'): + logger.info("Simple admin mode forced by environment variable") + from admin_simple import admin_bp, init_admin + return admin_bp, init_admin + + # Try to import full admin module + try: + # Quick check for Redis + import redis + r = redis.Redis.from_url(os.environ.get('REDIS_URL', 'redis://localhost:6379/0')) + r.ping() + + # Quick check for PostgreSQL + from sqlalchemy import create_engine, text + db_url = os.environ.get('DATABASE_URL', 'postgresql://localhost/talk2me') + engine = create_engine(db_url, pool_pre_ping=True) + with engine.connect() as conn: + conn.execute(text("SELECT 1")) + + # If we get here, both services are available + from admin import admin_bp, init_admin + logger.info("Using full admin module with Redis and PostgreSQL support") + return admin_bp, init_admin + + except Exception as e: + logger.warning(f"Cannot use full admin module: {e}") + logger.info("Falling back to simple admin module") + from admin_simple import admin_bp, init_admin + return admin_bp, init_admin \ No newline at end of file diff --git a/admin_simple.py b/admin_simple.py new file mode 100644 index 0000000..8ee9c2b --- /dev/null +++ b/admin_simple.py @@ -0,0 +1,77 @@ +""" +Simple admin blueprint that works without Redis/PostgreSQL +""" +from flask import Blueprint, request, jsonify, render_template, redirect, url_for, session +from functools import wraps +import os +import logging + +logger = logging.getLogger(__name__) + +# Create admin blueprint +admin_bp = Blueprint('admin', __name__, + template_folder='admin/templates', + static_folder='admin/static', + static_url_path='/admin/static') + +def init_admin(app): + """Initialize admin module with app configuration""" + logger.info("Admin dashboard initialized (simple mode)") + +def admin_required(f): + """Decorator to require admin authentication""" + @wraps(f) + def decorated_function(*args, **kwargs): + # Check if user is logged in as admin + if not session.get('admin_logged_in'): + # Check for admin token in headers (for API access) + auth_header = request.headers.get('Authorization', '') + if auth_header.startswith('Bearer '): + token = auth_header[7:] + expected_token = os.environ.get('ADMIN_TOKEN', 'default-admin-token') + if token == expected_token: + return f(*args, **kwargs) + + # Redirect to login for web access + return redirect(url_for('admin.login', next=request.url)) + return f(*args, **kwargs) + return decorated_function + +@admin_bp.route('/') +@admin_required +def dashboard(): + """Main admin dashboard""" + # Use simple dashboard template + return render_template('dashboard_simple.html') + +@admin_bp.route('/login', methods=['GET', 'POST']) +def login(): + """Admin login page""" + if request.method == 'POST': + token = request.form.get('token', '') + expected_token = os.environ.get('ADMIN_TOKEN', 'default-admin-token') + + if token == expected_token: + session['admin_logged_in'] = True + next_page = request.args.get('next', url_for('admin.dashboard')) + return redirect(next_page) + else: + return render_template('login.html', error='Invalid admin token') + + return render_template('login.html') + +@admin_bp.route('/logout') +def logout(): + """Admin logout""" + session.pop('admin_logged_in', None) + return redirect(url_for('admin.login')) + +@admin_bp.route('/health') +def health(): + """Check admin dashboard health""" + return jsonify({ + 'status': 'ok', + 'mode': 'simple', + 'redis': 'not configured', + 'postgresql': 'not configured' + }) \ No newline at end of file diff --git a/analytics_middleware.py b/analytics_middleware.py new file mode 100644 index 0000000..7910d71 --- /dev/null +++ b/analytics_middleware.py @@ -0,0 +1,426 @@ +"""Analytics middleware for tracking requests and operations""" + +import time +import json +import logging +from datetime import datetime +from flask import request, g +import redis +import psycopg2 +from psycopg2.extras import RealDictCursor +import threading +from queue import Queue +from functools import wraps + +logger = logging.getLogger(__name__) + +class AnalyticsTracker: + """Track and store analytics data""" + + def __init__(self, app=None): + self.app = app + self.redis_client = None + self.pg_conn = None + self.write_queue = Queue() + self.writer_thread = None + + if app: + self.init_app(app) + + def init_app(self, app): + """Initialize analytics with Flask app""" + self.app = app + + # Initialize Redis connection + try: + self.redis_client = redis.from_url( + app.config.get('REDIS_URL', 'redis://localhost:6379/0'), + decode_responses=True + ) + self.redis_client.ping() + logger.info("Analytics Redis connection established") + except Exception as e: + logger.error(f"Failed to connect to Redis for analytics: {e}") + self.redis_client = None + + # Initialize PostgreSQL connection + try: + self.pg_conn = psycopg2.connect( + app.config.get('DATABASE_URL', 'postgresql://localhost/talk2me') + ) + self.pg_conn.autocommit = True + logger.info("Analytics PostgreSQL connection established") + except Exception as e: + logger.error(f"Failed to connect to PostgreSQL for analytics: {e}") + self.pg_conn = None + + # Start background writer thread + self.writer_thread = threading.Thread(target=self._write_worker, daemon=True) + self.writer_thread.start() + + # Register before/after request handlers + app.before_request(self.before_request) + app.after_request(self.after_request) + + def before_request(self): + """Track request start time""" + g.start_time = time.time() + g.request_size = request.content_length or 0 + + def after_request(self, response): + """Track request completion and metrics""" + try: + # Skip if analytics is disabled + if not self.enabled: + return response + + # Calculate response time + response_time = int((time.time() - g.start_time) * 1000) # in ms + + # Track in Redis for real-time stats + if self.redis_client: + self._track_redis_stats(request, response, response_time) + + # Queue for PostgreSQL logging + if self.pg_conn and request.endpoint not in ['static', 'admin.static']: + self._queue_request_log(request, response, response_time) + + except Exception as e: + logger.error(f"Error in analytics after_request: {e}") + + return response + + def _track_redis_stats(self, request, response, response_time): + """Track statistics in Redis""" + try: + now = datetime.now() + + # Increment request counters + pipe = self.redis_client.pipeline() + + # Total requests + pipe.incr('stats:requests:total') + + # Time-based counters + pipe.incr(f'stats:requests:minute:{now.strftime("%Y-%m-%d-%H-%M")}') + pipe.expire(f'stats:requests:minute:{now.strftime("%Y-%m-%d-%H-%M")}', 3600) # 1 hour + + pipe.incr(f'stats:requests:hourly:{now.strftime("%Y-%m-%d-%H")}') + pipe.expire(f'stats:requests:hourly:{now.strftime("%Y-%m-%d-%H")}', 86400) # 24 hours + + pipe.incr(f'stats:requests:daily:{now.strftime("%Y-%m-%d")}') + pipe.expire(f'stats:requests:daily:{now.strftime("%Y-%m-%d")}', 604800) # 7 days + + # Track errors + if response.status_code >= 400: + pipe.incr(f'stats:errors:daily:{now.strftime("%Y-%m-%d")}') + pipe.incr(f'stats:errors:hourly:{now.strftime("%Y-%m-%d-%H")}') + pipe.expire(f'stats:errors:hourly:{now.strftime("%Y-%m-%d-%H")}', 86400) + + # Track response times + endpoint_key = request.endpoint or 'unknown' + pipe.lpush(f'stats:response_times:{endpoint_key}', response_time) + pipe.ltrim(f'stats:response_times:{endpoint_key}', 0, 999) # Keep last 1000 + + # Track slow requests + if response_time > 1000: # Over 1 second + slow_request = { + 'endpoint': request.endpoint, + 'method': request.method, + 'response_time': response_time, + 'timestamp': now.isoformat() + } + pipe.lpush('stats:slow_requests', json.dumps(slow_request)) + pipe.ltrim('stats:slow_requests', 0, 99) # Keep last 100 + + pipe.execute() + + except Exception as e: + logger.error(f"Error tracking Redis stats: {e}") + + def _queue_request_log(self, request, response, response_time): + """Queue request log for PostgreSQL""" + try: + log_entry = { + 'endpoint': request.endpoint, + 'method': request.method, + 'status_code': response.status_code, + 'response_time_ms': response_time, + 'ip_address': request.remote_addr, + 'user_agent': request.headers.get('User-Agent', '')[:500], + 'request_size_bytes': g.get('request_size', 0), + 'response_size_bytes': len(response.get_data()), + 'session_id': g.get('session_id'), + 'created_at': datetime.now() + } + + self.write_queue.put(('request_log', log_entry)) + + except Exception as e: + logger.error(f"Error queuing request log: {e}") + + def track_operation(self, operation_type, **kwargs): + """Track specific operations (translation, transcription, etc.)""" + def decorator(f): + @wraps(f) + def wrapped(*args, **inner_kwargs): + start_time = time.time() + success = True + error_message = None + result = None + + try: + result = f(*args, **inner_kwargs) + return result + except Exception as e: + success = False + error_message = str(e) + raise + finally: + # Track operation + response_time = int((time.time() - start_time) * 1000) + self._track_operation_complete( + operation_type, response_time, success, + error_message, kwargs, result + ) + + return wrapped + return decorator + + def _track_operation_complete(self, operation_type, response_time, success, + error_message, metadata, result): + """Track operation completion""" + try: + now = datetime.now() + + # Update Redis counters + if self.redis_client: + pipe = self.redis_client.pipeline() + + # Operation counters + pipe.incr(f'stats:{operation_type}:total') + pipe.incr(f'stats:{operation_type}:daily:{now.strftime("%Y-%m-%d")}') + pipe.expire(f'stats:{operation_type}:daily:{now.strftime("%Y-%m-%d")}', 604800) + + # Response times + pipe.lpush(f'stats:response_times:{operation_type}', response_time) + pipe.ltrim(f'stats:response_times:{operation_type}', 0, 999) + + # Language pairs for translations + if operation_type == 'translations' and 'source_lang' in metadata: + lang_pair = f"{metadata.get('source_lang')} -> {metadata.get('target_lang')}" + pipe.hincrby('stats:language_pairs', lang_pair, 1) + + # Error tracking + if not success: + pipe.hincrby('stats:error_types', error_message[:100], 1) + + pipe.execute() + + # Queue for PostgreSQL + if self.pg_conn: + log_entry = { + 'operation_type': operation_type, + 'response_time_ms': response_time, + 'success': success, + 'error_message': error_message, + 'metadata': metadata, + 'result': result, + 'session_id': g.get('session_id'), + 'created_at': now + } + + self.write_queue.put((operation_type, log_entry)) + + except Exception as e: + logger.error(f"Error tracking operation: {e}") + + def _write_worker(self): + """Background worker to write logs to PostgreSQL""" + while True: + try: + # Get items from queue (blocking) + operation_type, log_entry = self.write_queue.get() + + if operation_type == 'request_log': + self._write_request_log(log_entry) + elif operation_type == 'translations': + self._write_translation_log(log_entry) + elif operation_type == 'transcriptions': + self._write_transcription_log(log_entry) + elif operation_type == 'tts': + self._write_tts_log(log_entry) + + except Exception as e: + logger.error(f"Error in analytics write worker: {e}") + + def _write_request_log(self, log_entry): + """Write request log to PostgreSQL""" + try: + with self.pg_conn.cursor() as cursor: + cursor.execute(""" + INSERT INTO request_logs + (endpoint, method, status_code, response_time_ms, + ip_address, user_agent, request_size_bytes, + response_size_bytes, session_id, created_at) + VALUES (%(endpoint)s, %(method)s, %(status_code)s, + %(response_time_ms)s, %(ip_address)s, %(user_agent)s, + %(request_size_bytes)s, %(response_size_bytes)s, + %(session_id)s, %(created_at)s) + """, log_entry) + except Exception as e: + error_msg = str(e) + if 'relation "request_logs" does not exist' in error_msg: + logger.warning("Analytics tables not found. Run init_analytics_db.py to create them.") + # Disable analytics to prevent repeated errors + self.enabled = False + else: + logger.error(f"Error writing request log: {e}") + + def _write_translation_log(self, log_entry): + """Write translation log to PostgreSQL""" + try: + metadata = log_entry.get('metadata', {}) + + with self.pg_conn.cursor() as cursor: + cursor.execute(""" + INSERT INTO translation_logs + (source_language, target_language, text_length, + response_time_ms, success, error_message, + session_id, created_at) + VALUES (%(source_language)s, %(target_language)s, + %(text_length)s, %(response_time_ms)s, + %(success)s, %(error_message)s, + %(session_id)s, %(created_at)s) + """, { + 'source_language': metadata.get('source_lang'), + 'target_language': metadata.get('target_lang'), + 'text_length': metadata.get('text_length', 0), + 'response_time_ms': log_entry['response_time_ms'], + 'success': log_entry['success'], + 'error_message': log_entry['error_message'], + 'session_id': log_entry['session_id'], + 'created_at': log_entry['created_at'] + }) + except Exception as e: + logger.error(f"Error writing translation log: {e}") + + def _write_transcription_log(self, log_entry): + """Write transcription log to PostgreSQL""" + try: + metadata = log_entry.get('metadata', {}) + result = log_entry.get('result', {}) + + with self.pg_conn.cursor() as cursor: + cursor.execute(""" + INSERT INTO transcription_logs + (detected_language, audio_duration_seconds, + file_size_bytes, response_time_ms, success, + error_message, session_id, created_at) + VALUES (%(detected_language)s, %(audio_duration_seconds)s, + %(file_size_bytes)s, %(response_time_ms)s, + %(success)s, %(error_message)s, + %(session_id)s, %(created_at)s) + """, { + 'detected_language': result.get('detected_language') if isinstance(result, dict) else None, + 'audio_duration_seconds': metadata.get('audio_duration', 0), + 'file_size_bytes': metadata.get('file_size', 0), + 'response_time_ms': log_entry['response_time_ms'], + 'success': log_entry['success'], + 'error_message': log_entry['error_message'], + 'session_id': log_entry['session_id'], + 'created_at': log_entry['created_at'] + }) + except Exception as e: + logger.error(f"Error writing transcription log: {e}") + + def _write_tts_log(self, log_entry): + """Write TTS log to PostgreSQL""" + try: + metadata = log_entry.get('metadata', {}) + + with self.pg_conn.cursor() as cursor: + cursor.execute(""" + INSERT INTO tts_logs + (language, text_length, voice, response_time_ms, + success, error_message, session_id, created_at) + VALUES (%(language)s, %(text_length)s, %(voice)s, + %(response_time_ms)s, %(success)s, + %(error_message)s, %(session_id)s, %(created_at)s) + """, { + 'language': metadata.get('language'), + 'text_length': metadata.get('text_length', 0), + 'voice': metadata.get('voice'), + 'response_time_ms': log_entry['response_time_ms'], + 'success': log_entry['success'], + 'error_message': log_entry['error_message'], + 'session_id': log_entry['session_id'], + 'created_at': log_entry['created_at'] + }) + except Exception as e: + logger.error(f"Error writing TTS log: {e}") + + def log_error(self, error_type, error_message, **kwargs): + """Log error to analytics""" + try: + # Track in Redis + if self.redis_client: + pipe = self.redis_client.pipeline() + pipe.hincrby('stats:error_types', error_type, 1) + pipe.incr(f'stats:errors:daily:{datetime.now().strftime("%Y-%m-%d")}') + pipe.execute() + + # Log to PostgreSQL + if self.pg_conn: + with self.pg_conn.cursor() as cursor: + cursor.execute(""" + INSERT INTO error_logs + (error_type, error_message, endpoint, method, + status_code, ip_address, user_agent, request_id, + stack_trace, created_at) + VALUES (%(error_type)s, %(error_message)s, + %(endpoint)s, %(method)s, %(status_code)s, + %(ip_address)s, %(user_agent)s, + %(request_id)s, %(stack_trace)s, + %(created_at)s) + """, { + 'error_type': error_type, + 'error_message': error_message[:1000], + 'endpoint': kwargs.get('endpoint'), + 'method': kwargs.get('method'), + 'status_code': kwargs.get('status_code'), + 'ip_address': kwargs.get('ip_address'), + 'user_agent': kwargs.get('user_agent', '')[:500], + 'request_id': kwargs.get('request_id'), + 'stack_trace': kwargs.get('stack_trace', '')[:5000], + 'created_at': datetime.now() + }) + except Exception as e: + logger.error(f"Error logging analytics error: {e}") + + def update_cache_stats(self, hit=True): + """Update cache hit/miss statistics""" + try: + if self.redis_client: + if hit: + self.redis_client.incr('stats:cache:hits') + else: + self.redis_client.incr('stats:cache:misses') + except Exception as e: + logger.error(f"Error updating cache stats: {e}") + +# Create global instance +analytics_tracker = AnalyticsTracker() + +# Convenience decorators +def track_translation(**kwargs): + """Decorator to track translation operations""" + return analytics_tracker.track_operation('translations', **kwargs) + +def track_transcription(**kwargs): + """Decorator to track transcription operations""" + return analytics_tracker.track_operation('transcriptions', **kwargs) + +def track_tts(**kwargs): + """Decorator to track TTS operations""" + return analytics_tracker.track_operation('tts', **kwargs) \ No newline at end of file diff --git a/app.py b/app.py index 8528b2f..d892cfb 100644 --- a/app.py +++ b/app.py @@ -5,7 +5,7 @@ import requests import json import logging from dotenv import load_dotenv -from flask import Flask, render_template, request, jsonify, Response, send_file, send_from_directory, stream_with_context, g +from flask import Flask, render_template, request, jsonify, Response, send_file, send_from_directory, stream_with_context, g, session, redirect, url_for from flask_cors import CORS, cross_origin import whisper import torch @@ -42,6 +42,13 @@ from session_manager import init_app as init_session_manager, track_resource from request_size_limiter import RequestSizeLimiter, limit_request_size from error_logger import ErrorLogger, log_errors, log_performance, log_exception, get_logger from memory_manager import MemoryManager, AudioProcessingContext, with_memory_management +from analytics_middleware import analytics_tracker, track_translation, track_transcription, track_tts +# Admin module will be loaded dynamically based on service availability +from admin_loader import load_admin_module +from auth import init_auth, require_auth, get_current_user, update_user_usage_stats +from auth_routes import auth_bp +from auth_models import User +from user_rate_limiter import user_aware_rate_limit, get_user_rate_limit_status # Error boundary decorator for Flask routes def with_error_boundary(func): @@ -166,6 +173,97 @@ error_logger = ErrorLogger(app, { # Update logger to use the new system logger = get_logger(__name__) +# Initialize analytics tracking +analytics_tracker.init_app(app) + +# Initialize database +from database import db, init_db +init_db(app) + +# Initialize authentication system +init_auth(app) + +# Initialize admin dashboard dynamically +admin_bp, init_admin = load_admin_module() +init_admin(app) +app.register_blueprint(admin_bp, url_prefix='/admin') + +# Register authentication routes +app.register_blueprint(auth_bp, url_prefix='/api/auth') + +# Test route for session auth +@app.route('/api/test-auth') +def test_auth(): + """Test authentication methods""" + from flask import session as flask_session + user = get_current_user() + + # Also check admin count + admin_count = User.query.filter_by(role='admin').count() if User else 0 + + return jsonify({ + 'session_data': { + 'logged_in': flask_session.get('logged_in'), + 'user_id': flask_session.get('user_id'), + 'username': flask_session.get('username'), + 'user_role': flask_session.get('user_role'), + 'admin_token': bool(flask_session.get('admin_token')) + }, + 'current_user': { + 'found': user is not None, + 'username': user.username if user else None, + 'role': user.role if user else None, + 'is_admin': user.is_admin if user else None + } if user else None, + 'admin_users_in_db': admin_count + }) + +# Initialize admin user if none exists +@app.route('/api/init-admin-user', methods=['POST']) +def init_admin_user(): + """Create initial admin user if none exists""" + try: + # Check if any admin users exist + admin_exists = User.query.filter_by(role='admin').first() + if admin_exists: + return jsonify({ + 'success': False, + 'error': 'Admin user already exists' + }), 400 + + # Create default admin user + from auth import create_user + user, error = create_user( + email='admin@talk2me.local', + username='admin', + password='admin123', # Change this in production! + full_name='Administrator', + role='admin', + is_verified=True + ) + + if error: + return jsonify({ + 'success': False, + 'error': error + }), 400 + + return jsonify({ + 'success': True, + 'message': 'Admin user created successfully', + 'credentials': { + 'username': 'admin', + 'password': 'admin123', + 'note': 'Please change the password immediately!' + } + }) + except Exception as e: + logger.error(f"Failed to create admin user: {str(e)}") + return jsonify({ + 'success': False, + 'error': 'Failed to create admin user' + }), 500 + # Initialize memory management memory_manager = MemoryManager(app, { 'memory_threshold_mb': app.config.get('MEMORY_THRESHOLD_MB', 4096), @@ -673,14 +771,130 @@ LANGUAGE_TO_VOICE = { def index(): return render_template('index.html', languages=sorted(SUPPORTED_LANGUAGES.values())) +@app.route('/login', methods=['GET', 'POST']) +def login(): + """User login page""" + if request.method == 'POST': + # Handle form-based login (for users without JavaScript) + username = request.form.get('username') + password = request.form.get('password') + + # Special case: Check if it's the admin token being used as password + admin_token = app.config.get('ADMIN_TOKEN', os.environ.get('ADMIN_TOKEN', 'default-admin-token')) + if username == 'admin' and password == admin_token: + # Direct admin login with token + session['user_id'] = 'admin-token-user' + session['username'] = 'admin' + session['user_role'] = 'admin' + session['logged_in'] = True + session['admin_token'] = admin_token + + next_url = request.args.get('next', url_for('admin.dashboard')) + return redirect(next_url) + + if username and password: + # Try regular database authentication + try: + # Import here to avoid circular imports + from auth import authenticate_user + + user, error = authenticate_user(username, password) + if not error and user: + # Store user info in session + session['user_id'] = str(user.id) + session['username'] = user.username + session['user_role'] = user.role + session['logged_in'] = True + + # Redirect based on role + next_url = request.args.get('next') + if next_url: + return redirect(next_url) + elif user.role == 'admin': + return redirect(url_for('admin.dashboard')) + else: + return redirect(url_for('index')) + else: + return render_template('login.html', error=error or 'Login failed') + except Exception as e: + logger.error(f"Database login error: {e}") + # If database login fails, still show error + return render_template('login.html', error='Login failed - database error') + + return render_template('login.html') + +@app.route('/logout') +def logout(): + """Logout user""" + session.clear() + return redirect(url_for('index')) + +@app.route('/admin-token-login', methods=['GET', 'POST']) +def admin_token_login(): + """Simple admin login with token only""" + if request.method == 'POST': + token = request.form.get('token', request.form.get('password', '')) + admin_token = app.config.get('ADMIN_TOKEN', os.environ.get('ADMIN_TOKEN', 'default-admin-token')) + + if token == admin_token: + # Set admin session + session['user_id'] = 'admin-token-user' + session['username'] = 'admin' + session['user_role'] = 'admin' + session['logged_in'] = True + session['admin_token'] = admin_token + + next_url = request.args.get('next', url_for('admin.dashboard')) + return redirect(next_url) + else: + error = 'Invalid admin token' + else: + error = None + + # Simple form template + return f''' + + + + Admin Token Login + + + +
+

Admin Token Login

+ {f'
{error}
' if error else ''} +
+ + +
+
+

Use the ADMIN_TOKEN from your .env file

+

Current token: {admin_token if app.debug else '[hidden in production]'}

+
+
+ + + ''' + @app.route('/transcribe', methods=['POST']) -@rate_limit(requests_per_minute=10, requests_per_hour=100, check_size=True) +@user_aware_rate_limit(requests_per_minute=10, requests_per_hour=100, check_size=True) @limit_request_size(max_audio_size=25 * 1024 * 1024) # 25MB limit for audio @with_error_boundary @track_resource('audio_file') @log_performance('transcribe_audio') @with_memory_management def transcribe(): + # Get current user if authenticated + user = get_current_user() + # Use memory management context with AudioProcessingContext(app.memory_manager, name='transcribe') as ctx: if 'audio' not in request.files: @@ -767,6 +981,24 @@ def transcribe(): # Log detected language logger.info(f"Auto-detected language: {detected_language} ({detected_code})") + # Update user usage stats if authenticated + if user: + update_user_usage_stats(user, 'transcription') + + # Track transcription analytics + analytics_tracker._track_operation_complete( + 'transcriptions', + int((time.time() - g.start_time) * 1000), + True, + None, + { + 'detected_language': detected_language or source_lang, + 'audio_duration': len(transcribed_text.split()) / 3, # Rough estimate + 'file_size': os.path.getsize(temp_path) + }, + {'detected_language': detected_language, 'text': transcribed_text} + ) + # Send notification if push is enabled if len(push_subscriptions) > 0: send_push_notification( @@ -804,12 +1036,15 @@ def transcribe(): gc.collect() @app.route('/translate', methods=['POST']) -@rate_limit(requests_per_minute=20, requests_per_hour=300, check_size=True) +@user_aware_rate_limit(requests_per_minute=20, requests_per_hour=300, check_size=True) @limit_request_size(max_size=1 * 1024 * 1024) # 1MB limit for JSON @with_error_boundary @log_performance('translate_text') def translate(): try: + # Get current user if authenticated + user = get_current_user() + # Validate request size if not Validators.validate_json_size(request.json, max_size_kb=100): return jsonify({'error': 'Request too large'}), 413 @@ -856,6 +1091,24 @@ def translate(): translated_text = response['message']['content'].strip() + # Update user usage stats if authenticated + if user: + update_user_usage_stats(user, 'translation') + + # Track translation analytics + analytics_tracker._track_operation_complete( + 'translations', + int((time.time() - g.start_time) * 1000), + True, + None, + { + 'source_lang': source_lang, + 'target_lang': target_lang, + 'text_length': len(text) + }, + {'translation': translated_text} + ) + # Send notification if push is enabled if len(push_subscriptions) > 0: send_push_notification( @@ -874,7 +1127,7 @@ def translate(): return jsonify({'error': f'Translation failed: {str(e)}'}), 500 @app.route('/translate/stream', methods=['POST']) -@rate_limit(requests_per_minute=10, requests_per_hour=150, check_size=True) +@user_aware_rate_limit(requests_per_minute=10, requests_per_hour=150, check_size=True) @limit_request_size(max_size=1 * 1024 * 1024) # 1MB limit for JSON @with_error_boundary def translate_stream(): @@ -972,12 +1225,15 @@ def translate_stream(): return jsonify({'error': f'Translation failed: {str(e)}'}), 500 @app.route('/speak', methods=['POST']) -@rate_limit(requests_per_minute=15, requests_per_hour=200, check_size=True) +@user_aware_rate_limit(requests_per_minute=15, requests_per_hour=200, check_size=True) @limit_request_size(max_size=1 * 1024 * 1024) # 1MB limit for JSON @with_error_boundary @track_resource('audio_file') def speak(): try: + # Get current user if authenticated + user = get_current_user() + # Validate request size if not Validators.validate_json_size(request.json, max_size_kb=100): return jsonify({'error': 'Request too large'}), 413 @@ -1066,6 +1322,24 @@ def speak(): # Register for cleanup register_temp_file(temp_audio_path) + # Update user usage stats if authenticated + if user: + update_user_usage_stats(user, 'tts') + + # Track TTS analytics + analytics_tracker._track_operation_complete( + 'tts', + int((time.time() - g.start_time) * 1000), + True, + None, + { + 'language': language, + 'text_length': len(text), + 'voice': voice + }, + {'audio_file': temp_audio_filename} + ) + # Add to session resources if hasattr(g, 'session_manager') and hasattr(g, 'user_session'): file_size = os.path.getsize(temp_audio_path) diff --git a/app_with_db.py b/app_with_db.py new file mode 100644 index 0000000..5de6631 --- /dev/null +++ b/app_with_db.py @@ -0,0 +1,746 @@ +# This is the updated app.py with Redis and PostgreSQL integration +# To use this, rename it to app.py after backing up the original + +import os +import time +import tempfile +import requests +import json +import logging +from dotenv import load_dotenv +from flask import Flask, render_template, request, jsonify, Response, send_file, send_from_directory, stream_with_context, g +from flask_cors import CORS, cross_origin +import whisper +import torch +import ollama +from whisper_config import MODEL_SIZE, GPU_OPTIMIZATIONS, TRANSCRIBE_OPTIONS +from pywebpush import webpush, WebPushException +import base64 +from cryptography.hazmat.primitives.asymmetric import ec +from cryptography.hazmat.primitives import serialization +from cryptography.hazmat.backends import default_backend +import gc +from functools import wraps +import traceback +from validators import Validators +import atexit +import threading +from datetime import datetime, timedelta + +# Import new database and Redis components +from database import db, init_db, Translation, Transcription, UserPreferences, UsageAnalytics +from redis_manager import RedisManager, redis_cache +from redis_rate_limiter import RedisRateLimiter, rate_limit +from redis_session_manager import RedisSessionManager, init_app as init_redis_sessions + +# Load environment variables +load_dotenv() + +# Initialize logging +logging.basicConfig(level=logging.INFO) +logger = logging.getLogger(__name__) + +# Import other components +from werkzeug.middleware.proxy_fix import ProxyFix +from config import init_app as init_config +from secrets_manager import init_app as init_secrets +from request_size_limiter import RequestSizeLimiter, limit_request_size +from error_logger import ErrorLogger, log_errors, log_performance, log_exception, get_logger +from memory_manager import MemoryManager, AudioProcessingContext, with_memory_management + +# Error boundary decorator +def with_error_boundary(func): + @wraps(func) + def wrapper(*args, **kwargs): + try: + return func(*args, **kwargs) + except Exception as e: + log_exception( + e, + message=f"Error in {func.__name__}", + endpoint=request.endpoint, + method=request.method, + path=request.path, + ip=request.remote_addr, + function=func.__name__, + module=func.__module__ + ) + + if any(keyword in str(e).lower() for keyword in ['inject', 'attack', 'malicious', 'unauthorized']): + app.error_logger.log_security( + 'suspicious_error', + severity='warning', + error_type=type(e).__name__, + error_message=str(e), + endpoint=request.endpoint, + ip=request.remote_addr + ) + + error_message = str(e) if app.debug else "An internal error occurred" + return jsonify({ + 'success': False, + 'error': error_message, + 'component': func.__name__, + 'request_id': getattr(g, 'request_id', None) + }), 500 + return wrapper + +app = Flask(__name__) + +# Apply ProxyFix middleware +app.wsgi_app = ProxyFix( + app.wsgi_app, + x_for=1, + x_proto=1, + x_host=1, + x_prefix=1 +) + +# Initialize configuration and secrets +init_config(app) +init_secrets(app) + +# Initialize database +init_db(app) + +# Initialize Redis +redis_manager = RedisManager(app) +app.redis = redis_manager + +# Initialize Redis-based rate limiter +redis_rate_limiter = RedisRateLimiter(redis_manager) +app.redis_rate_limiter = redis_rate_limiter + +# Initialize Redis-based session management +init_redis_sessions(app) + +# Configure CORS +cors_config = { + "origins": app.config.get('CORS_ORIGINS', ['*']), + "methods": ["GET", "POST", "OPTIONS"], + "allow_headers": ["Content-Type", "Authorization", "X-Requested-With", "X-Admin-Token"], + "expose_headers": ["Content-Range", "X-Content-Range"], + "supports_credentials": True, + "max_age": 3600 +} + +CORS(app, resources={ + r"/api/*": cors_config, + r"/transcribe": cors_config, + r"/translate": cors_config, + r"/translate/stream": cors_config, + r"/speak": cors_config, + r"/get_audio/*": cors_config, + r"/check_tts_server": cors_config, + r"/update_tts_config": cors_config, + r"/health/*": cors_config, + r"/admin/*": { + **cors_config, + "origins": app.config.get('ADMIN_CORS_ORIGINS', ['http://localhost:*']) + } +}) + +# Configure upload folder +upload_folder = app.config.get('UPLOAD_FOLDER') +if not upload_folder: + upload_folder = os.path.join(tempfile.gettempdir(), 'talk2me_uploads') + +try: + os.makedirs(upload_folder, mode=0o755, exist_ok=True) + logger.info(f"Using upload folder: {upload_folder}") +except Exception as e: + logger.error(f"Failed to create upload folder {upload_folder}: {str(e)}") + upload_folder = tempfile.mkdtemp(prefix='talk2me_') + logger.warning(f"Falling back to temporary folder: {upload_folder}") + +app.config['UPLOAD_FOLDER'] = upload_folder + +# Initialize request size limiter +request_size_limiter = RequestSizeLimiter(app, { + 'max_content_length': app.config.get('MAX_CONTENT_LENGTH', 50 * 1024 * 1024), + 'max_audio_size': app.config.get('MAX_AUDIO_SIZE', 25 * 1024 * 1024), + 'max_json_size': app.config.get('MAX_JSON_SIZE', 1 * 1024 * 1024), + 'max_image_size': app.config.get('MAX_IMAGE_SIZE', 10 * 1024 * 1024), +}) + +# Initialize error logging +error_logger = ErrorLogger(app, { + 'log_level': app.config.get('LOG_LEVEL', 'INFO'), + 'log_file': app.config.get('LOG_FILE', 'logs/talk2me.log'), + 'error_log_file': app.config.get('ERROR_LOG_FILE', 'logs/errors.log'), + 'max_bytes': app.config.get('LOG_MAX_BYTES', 50 * 1024 * 1024), + 'backup_count': app.config.get('LOG_BACKUP_COUNT', 10) +}) + +logger = get_logger(__name__) + +# Initialize memory management +memory_manager = MemoryManager(app, { + 'memory_threshold_mb': app.config.get('MEMORY_THRESHOLD_MB', 4096), + 'gpu_memory_threshold_mb': app.config.get('GPU_MEMORY_THRESHOLD_MB', 2048), + 'cleanup_interval': app.config.get('MEMORY_CLEANUP_INTERVAL', 30) +}) + +# Initialize Whisper model +logger.info("Initializing Whisper model with GPU optimization...") + +if torch.cuda.is_available(): + device = torch.device("cuda") + try: + gpu_name = torch.cuda.get_device_name(0) + if 'AMD' in gpu_name or 'Radeon' in gpu_name: + logger.info(f"AMD GPU detected via ROCm: {gpu_name}") + else: + logger.info(f"NVIDIA GPU detected: {gpu_name}") + except: + logger.info("GPU detected - using CUDA/ROCm acceleration") +elif hasattr(torch.backends, 'mps') and torch.backends.mps.is_available(): + device = torch.device("mps") + logger.info("Apple Silicon detected - using Metal Performance Shaders") +else: + device = torch.device("cpu") + logger.info("No GPU acceleration available - using CPU") + +logger.info(f"Using device: {device}") + +whisper_model = whisper.load_model(MODEL_SIZE, device=device) + +# Enable GPU optimizations +if device.type == 'cuda': + try: + torch.backends.cuda.matmul.allow_tf32 = True + torch.backends.cudnn.allow_tf32 = True + torch.backends.cudnn.benchmark = True + whisper_model.eval() + whisper_model = whisper_model.half() + torch.cuda.empty_cache() + + logger.info("Warming up GPU with dummy inference...") + with torch.no_grad(): + dummy_audio = torch.randn(1, 16000 * 30).to(device).half() + _ = whisper_model.encode(whisper.pad_or_trim(dummy_audio)) + + logger.info(f"GPU memory allocated: {torch.cuda.memory_allocated() / 1024**2:.2f} MB") + logger.info("Whisper model loaded and optimized for GPU") + except Exception as e: + logger.warning(f"Some GPU optimizations failed: {e}") +elif device.type == 'mps': + whisper_model.eval() + logger.info("Whisper model loaded and optimized for Apple Silicon") +else: + whisper_model.eval() + logger.info("Whisper model loaded (CPU mode)") + +memory_manager.set_whisper_model(whisper_model) +app.whisper_model = whisper_model + +# Supported languages +SUPPORTED_LANGUAGES = { + "ar": "Arabic", + "hy": "Armenian", + "az": "Azerbaijani", + "en": "English", + "fr": "French", + "ka": "Georgian", + "kk": "Kazakh", + "zh": "Mandarin", + "fa": "Farsi", + "pt": "Portuguese", + "ru": "Russian", + "es": "Spanish", + "tr": "Turkish", + "uz": "Uzbek" +} + +LANGUAGE_TO_CODE = {v: k for k, v in SUPPORTED_LANGUAGES.items()} + +LANGUAGE_TO_VOICE = { + "Arabic": "ar-EG-ShakirNeural", + "Armenian": "echo", + "Azerbaijani": "az-AZ-BanuNeural", + "English": "en-GB-RyanNeural", + "French": "fr-FR-DeniseNeural", + "Georgian": "ka-GE-GiorgiNeural", + "Kazakh": "kk-KZ-DauletNeural", + "Mandarin": "zh-CN-YunjianNeural", + "Farsi": "fa-IR-FaridNeural", + "Portuguese": "pt-BR-ThalitaNeural", + "Russian": "ru-RU-SvetlanaNeural", + "Spanish": "es-CR-MariaNeural", + "Turkish": "tr-TR-EmelNeural", + "Uzbek": "uz-UZ-SardorNeural" +} + +# Generate VAPID keys for push notifications +if not os.path.exists('vapid_private.pem'): + private_key = ec.generate_private_key(ec.SECP256R1(), default_backend()) + public_key = private_key.public_key() + + with open('vapid_private.pem', 'wb') as f: + f.write(private_key.private_bytes( + encoding=serialization.Encoding.PEM, + format=serialization.PrivateFormat.PKCS8, + encryption_algorithm=serialization.NoEncryption() + )) + + with open('vapid_public.pem', 'wb') as f: + f.write(public_key.public_bytes( + encoding=serialization.Encoding.PEM, + format=serialization.PublicFormat.SubjectPublicKeyInfo + )) + +with open('vapid_private.pem', 'rb') as f: + vapid_private_key = f.read() +with open('vapid_public.pem', 'rb') as f: + vapid_public_pem = f.read() + vapid_public_key = serialization.load_pem_public_key( + vapid_public_pem, + backend=default_backend() + ) + +public_numbers = vapid_public_key.public_numbers() +x = public_numbers.x.to_bytes(32, byteorder='big') +y = public_numbers.y.to_bytes(32, byteorder='big') +vapid_public_key_base64 = base64.urlsafe_b64encode(b'\x04' + x + y).decode('utf-8').rstrip('=') + +# Store push subscriptions in Redis instead of memory +# push_subscriptions = [] # Removed - now using Redis + +# Temporary file cleanup +TEMP_FILE_MAX_AGE = 300 +CLEANUP_INTERVAL = 60 + +def cleanup_temp_files(): + """Clean up old temporary files""" + try: + current_time = datetime.now() + + # Clean files from upload folder + if os.path.exists(app.config['UPLOAD_FOLDER']): + for filename in os.listdir(app.config['UPLOAD_FOLDER']): + filepath = os.path.join(app.config['UPLOAD_FOLDER'], filename) + if os.path.isfile(filepath): + file_age = current_time - datetime.fromtimestamp(os.path.getmtime(filepath)) + if file_age > timedelta(seconds=TEMP_FILE_MAX_AGE): + try: + os.remove(filepath) + logger.info(f"Cleaned up file: {filepath}") + except Exception as e: + logger.error(f"Failed to remove file {filepath}: {str(e)}") + + logger.debug("Cleanup completed") + except Exception as e: + logger.error(f"Error during temp file cleanup: {str(e)}") + +def run_cleanup_loop(): + """Run cleanup in a separate thread""" + while True: + time.sleep(CLEANUP_INTERVAL) + cleanup_temp_files() + +# Start cleanup thread +cleanup_thread = threading.Thread(target=run_cleanup_loop, daemon=True) +cleanup_thread.start() + +# Analytics collection helper +def collect_analytics(service: str, duration_ms: int = None, metadata: dict = None): + """Collect usage analytics to database""" + try: + from sqlalchemy import func + + today = datetime.utcnow().date() + hour = datetime.utcnow().hour + + # Get or create analytics record + analytics = UsageAnalytics.query.filter_by(date=today, hour=hour).first() + if not analytics: + analytics = UsageAnalytics(date=today, hour=hour) + db.session.add(analytics) + + # Update counters + analytics.total_requests += 1 + + if service == 'transcription': + analytics.transcriptions += 1 + if duration_ms: + if analytics.avg_transcription_time_ms: + analytics.avg_transcription_time_ms = ( + (analytics.avg_transcription_time_ms * (analytics.transcriptions - 1) + duration_ms) + / analytics.transcriptions + ) + else: + analytics.avg_transcription_time_ms = duration_ms + + elif service == 'translation': + analytics.translations += 1 + if duration_ms: + if analytics.avg_translation_time_ms: + analytics.avg_translation_time_ms = ( + (analytics.avg_translation_time_ms * (analytics.translations - 1) + duration_ms) + / analytics.translations + ) + else: + analytics.avg_translation_time_ms = duration_ms + + elif service == 'tts': + analytics.tts_requests += 1 + if duration_ms: + if analytics.avg_tts_time_ms: + analytics.avg_tts_time_ms = ( + (analytics.avg_tts_time_ms * (analytics.tts_requests - 1) + duration_ms) + / analytics.tts_requests + ) + else: + analytics.avg_tts_time_ms = duration_ms + + db.session.commit() + except Exception as e: + logger.error(f"Failed to collect analytics: {e}") + db.session.rollback() + +# Routes +@app.route('/') +def index(): + return render_template('index.html', languages=sorted(SUPPORTED_LANGUAGES.values())) + +@app.route('/transcribe', methods=['POST']) +@rate_limit(requests_per_minute=10, requests_per_hour=100, check_size=True) +@limit_request_size(max_audio_size=25 * 1024 * 1024) +@with_error_boundary +@log_performance('transcribe_audio') +@with_memory_management +def transcribe(): + start_time = time.time() + + with AudioProcessingContext(app.memory_manager, name='transcribe') as ctx: + if 'audio' not in request.files: + return jsonify({'error': 'No audio file provided'}), 400 + + audio_file = request.files['audio'] + + valid, error_msg = Validators.validate_audio_file(audio_file) + if not valid: + return jsonify({'error': error_msg}), 400 + + source_lang = request.form.get('source_lang', '') + allowed_languages = set(SUPPORTED_LANGUAGES.values()) + source_lang = Validators.validate_language_code(source_lang, allowed_languages) or '' + + temp_filename = f'input_audio_{int(time.time() * 1000)}.wav' + temp_path = os.path.join(app.config['UPLOAD_FOLDER'], temp_filename) + + with open(temp_path, 'wb') as f: + audio_file.save(f) + + ctx.add_temp_file(temp_path) + + # Add to Redis session + if hasattr(g, 'session_manager') and hasattr(g, 'user_session'): + file_size = os.path.getsize(temp_path) + g.session_manager.add_resource( + session_id=g.user_session.session_id, + resource_type='audio_file', + resource_id=temp_filename, + path=temp_path, + size_bytes=file_size, + metadata={'filename': temp_filename, 'purpose': 'transcription'} + ) + + try: + auto_detect = source_lang == 'auto' or source_lang == '' + + transcribe_options = { + "task": "transcribe", + "temperature": 0, + "best_of": 1, + "beam_size": 1, + "fp16": device.type == 'cuda', + "condition_on_previous_text": False, + "compression_ratio_threshold": 2.4, + "logprob_threshold": -1.0, + "no_speech_threshold": 0.6 + } + + if not auto_detect: + transcribe_options["language"] = LANGUAGE_TO_CODE.get(source_lang, None) + + if device.type == 'cuda': + torch.cuda.empty_cache() + + with torch.no_grad(): + result = whisper_model.transcribe( + temp_path, + **transcribe_options + ) + + transcribed_text = result["text"] + + detected_language = None + if auto_detect and 'language' in result: + detected_code = result['language'] + for lang_name, lang_code in LANGUAGE_TO_CODE.items(): + if lang_code == detected_code: + detected_language = lang_name + break + + logger.info(f"Auto-detected language: {detected_language} ({detected_code})") + + # Calculate duration + duration_ms = int((time.time() - start_time) * 1000) + + # Save to database + try: + transcription = Transcription( + session_id=g.user_session.session_id if hasattr(g, 'user_session') else None, + user_id=g.user_session.user_id if hasattr(g, 'user_session') else None, + transcribed_text=transcribed_text, + detected_language=detected_language or source_lang, + transcription_time_ms=duration_ms, + model_used=MODEL_SIZE, + audio_file_size=os.path.getsize(temp_path), + ip_address=request.remote_addr, + user_agent=request.headers.get('User-Agent') + ) + db.session.add(transcription) + db.session.commit() + except Exception as e: + logger.error(f"Failed to save transcription to database: {e}") + db.session.rollback() + + # Collect analytics + collect_analytics('transcription', duration_ms) + + # Send notification if push is enabled + push_count = redis_manager.scard('push_subscriptions') + if push_count > 0: + send_push_notification( + title="Transcription Complete", + body=f"Successfully transcribed: {transcribed_text[:50]}...", + tag="transcription-complete" + ) + + response = { + 'success': True, + 'text': transcribed_text + } + + if detected_language: + response['detected_language'] = detected_language + + return jsonify(response) + except Exception as e: + logger.error(f"Transcription error: {str(e)}") + return jsonify({'error': f'Transcription failed: {str(e)}'}), 500 + finally: + try: + if 'temp_path' in locals() and os.path.exists(temp_path): + os.remove(temp_path) + except Exception as e: + logger.error(f"Failed to clean up temp file: {e}") + + if device.type == 'cuda': + torch.cuda.empty_cache() + torch.cuda.synchronize() + gc.collect() + +@app.route('/translate', methods=['POST']) +@rate_limit(requests_per_minute=20, requests_per_hour=300, check_size=True) +@limit_request_size(max_size=1 * 1024 * 1024) +@with_error_boundary +@log_performance('translate_text') +def translate(): + start_time = time.time() + + try: + if not Validators.validate_json_size(request.json, max_size_kb=100): + return jsonify({'error': 'Request too large'}), 413 + + data = request.json + + text = data.get('text', '') + text = Validators.sanitize_text(text) + if not text: + return jsonify({'error': 'No text provided'}), 400 + + allowed_languages = set(SUPPORTED_LANGUAGES.values()) + source_lang = Validators.validate_language_code( + data.get('source_lang', ''), allowed_languages + ) or 'auto' + target_lang = Validators.validate_language_code( + data.get('target_lang', ''), allowed_languages + ) + + if not target_lang: + return jsonify({'error': 'Invalid target language'}), 400 + + # Check cache first + cached_translation = redis_manager.get_cached_translation( + text, source_lang, target_lang + ) + if cached_translation: + logger.info("Translation served from cache") + return jsonify({ + 'success': True, + 'translation': cached_translation, + 'cached': True + }) + + # Create prompt for translation + prompt = f""" + Translate the following text from {source_lang} to {target_lang}: + + "{text}" + + Provide only the translation without any additional text. + """ + + response = ollama.chat( + model="gemma3:27b", + messages=[ + { + "role": "user", + "content": prompt + } + ] + ) + + translated_text = response['message']['content'].strip() + + # Calculate duration + duration_ms = int((time.time() - start_time) * 1000) + + # Cache the translation + redis_manager.cache_translation( + text, source_lang, target_lang, translated_text + ) + + # Save to database + try: + translation = Translation( + session_id=g.user_session.session_id if hasattr(g, 'user_session') else None, + user_id=g.user_session.user_id if hasattr(g, 'user_session') else None, + source_text=text, + source_language=source_lang, + target_text=translated_text, + target_language=target_lang, + translation_time_ms=duration_ms, + model_used="gemma3:27b", + ip_address=request.remote_addr, + user_agent=request.headers.get('User-Agent') + ) + db.session.add(translation) + db.session.commit() + except Exception as e: + logger.error(f"Failed to save translation to database: {e}") + db.session.rollback() + + # Collect analytics + collect_analytics('translation', duration_ms) + + # Send notification + push_count = redis_manager.scard('push_subscriptions') + if push_count > 0: + send_push_notification( + title="Translation Complete", + body=f"Translated from {source_lang} to {target_lang}", + tag="translation-complete", + data={'translation': translated_text[:100]} + ) + + return jsonify({ + 'success': True, + 'translation': translated_text + }) + except Exception as e: + logger.error(f"Translation error: {str(e)}") + return jsonify({'error': f'Translation failed: {str(e)}'}), 500 + +@app.route('/api/push-subscribe', methods=['POST']) +@rate_limit(requests_per_minute=10, requests_per_hour=50) +def push_subscribe(): + try: + subscription = request.json + # Store subscription in Redis + subscription_id = f"sub_{int(time.time() * 1000)}" + redis_manager.set(f"push_subscription:{subscription_id}", subscription, expire=86400 * 30) # 30 days + redis_manager.sadd('push_subscriptions', subscription_id) + + logger.info(f"New push subscription registered: {subscription_id}") + return jsonify({'success': True}) + except Exception as e: + logger.error(f"Failed to register push subscription: {str(e)}") + return jsonify({'success': False, 'error': str(e)}), 500 + +def send_push_notification(title, body, icon='/static/icons/icon-192x192.png', + badge='/static/icons/icon-192x192.png', tag=None, data=None): + """Send push notification to all subscribed clients""" + claims = { + "sub": "mailto:admin@talk2me.app", + "exp": int(time.time()) + 86400 + } + + notification_sent = 0 + + # Get all subscription IDs from Redis + subscription_ids = redis_manager.smembers('push_subscriptions') + + for sub_id in subscription_ids: + subscription = redis_manager.get(f"push_subscription:{sub_id}") + if not subscription: + continue + + try: + webpush( + subscription_info=subscription, + data=json.dumps({ + 'title': title, + 'body': body, + 'icon': icon, + 'badge': badge, + 'tag': tag or 'talk2me-notification', + 'data': data or {} + }), + vapid_private_key=vapid_private_key, + vapid_claims=claims + ) + notification_sent += 1 + except WebPushException as e: + logger.error(f"Failed to send push notification: {str(e)}") + if e.response and e.response.status_code == 410: + # Remove invalid subscription + redis_manager.delete(f"push_subscription:{sub_id}") + redis_manager.srem('push_subscriptions', sub_id) + + logger.info(f"Sent {notification_sent} push notifications") + return notification_sent + +# Initialize app +app.start_time = time.time() +app.request_count = 0 + +@app.before_request +def before_request(): + app.request_count = getattr(app, 'request_count', 0) + 1 + +# Error handlers +@app.errorhandler(404) +def not_found_error(error): + logger.warning(f"404 error: {request.url}") + return jsonify({ + 'success': False, + 'error': 'Resource not found', + 'status': 404 + }), 404 + +@app.errorhandler(500) +def internal_error(error): + logger.error(f"500 error: {str(error)}") + logger.error(traceback.format_exc()) + return jsonify({ + 'success': False, + 'error': 'Internal server error', + 'status': 500 + }), 500 + +if __name__ == '__main__': + app.run(host='0.0.0.0', port=5005, debug=True) \ No newline at end of file diff --git a/auth.py b/auth.py new file mode 100644 index 0000000..6641d99 --- /dev/null +++ b/auth.py @@ -0,0 +1,476 @@ +"""Authentication and authorization utilities for Talk2Me""" +import os +import uuid +import functools +from datetime import datetime, timedelta, timezone +from typing import Optional, Dict, Any, Callable, Union, List +from flask import request, jsonify, g, current_app +from flask_jwt_extended import ( + JWTManager, create_access_token, create_refresh_token, + get_jwt_identity, jwt_required, get_jwt, verify_jwt_in_request +) +from werkzeug.exceptions import Unauthorized +from sqlalchemy.exc import IntegrityError + +from database import db +from auth_models import User, LoginHistory, UserSession, RevokedToken, bcrypt +from error_logger import log_exception + +# Initialize JWT Manager +jwt = JWTManager() + + +def init_auth(app): + """Initialize authentication system with app""" + # Configure JWT + app.config['JWT_SECRET_KEY'] = app.config.get('JWT_SECRET_KEY', os.environ.get('JWT_SECRET_KEY', 'your-secret-key-change-in-production')) + app.config['JWT_ACCESS_TOKEN_EXPIRES'] = timedelta(hours=1) + app.config['JWT_REFRESH_TOKEN_EXPIRES'] = timedelta(days=30) + app.config['JWT_ALGORITHM'] = 'HS256' + app.config['JWT_BLACKLIST_ENABLED'] = True + app.config['JWT_BLACKLIST_TOKEN_CHECKS'] = ['access', 'refresh'] + + # Initialize JWT manager + jwt.init_app(app) + + # Initialize bcrypt + bcrypt.init_app(app) + + # Register JWT callbacks + @jwt.token_in_blocklist_loader + def check_if_token_revoked(jwt_header, jwt_payload): + jti = jwt_payload["jti"] + return RevokedToken.is_token_revoked(jti) + + @jwt.expired_token_loader + def expired_token_callback(jwt_header, jwt_payload): + return jsonify({ + 'success': False, + 'error': 'Token has expired', + 'code': 'token_expired' + }), 401 + + @jwt.invalid_token_loader + def invalid_token_callback(error): + return jsonify({ + 'success': False, + 'error': 'Invalid token', + 'code': 'invalid_token' + }), 401 + + @jwt.unauthorized_loader + def missing_token_callback(error): + return jsonify({ + 'success': False, + 'error': 'Authorization required', + 'code': 'authorization_required' + }), 401 + + @jwt.revoked_token_loader + def revoked_token_callback(jwt_header, jwt_payload): + return jsonify({ + 'success': False, + 'error': 'Token has been revoked', + 'code': 'token_revoked' + }), 401 + + +def create_user(email: str, username: str, password: str, full_name: Optional[str] = None, + role: str = 'user', is_verified: bool = False) -> tuple[Optional[User], Optional[str]]: + """Create a new user account""" + try: + # Check if user already exists + if User.query.filter((User.email == email) | (User.username == username)).first(): + return None, "User with this email or username already exists" + + # Create user + user = User( + email=email, + username=username, + full_name=full_name, + role=role, + is_verified=is_verified + ) + user.set_password(password) + + db.session.add(user) + db.session.commit() + + return user, None + except IntegrityError: + db.session.rollback() + return None, "User with this email or username already exists" + except Exception as e: + db.session.rollback() + log_exception(e, "Failed to create user") + return None, "Failed to create user account" + + +def authenticate_user(username_or_email: str, password: str) -> tuple[Optional[User], Optional[str]]: + """Authenticate user with username/email and password""" + # Find user by username or email + user = User.query.filter( + (User.username == username_or_email) | (User.email == username_or_email) + ).first() + + if not user: + return None, "Invalid credentials" + + # Check if user can login + can_login, reason = user.can_login() + if not can_login: + user.record_login_attempt(False) + db.session.commit() + return None, reason + + # Verify password + if not user.check_password(password): + user.record_login_attempt(False) + db.session.commit() + return None, "Invalid credentials" + + # Success + user.record_login_attempt(True) + db.session.commit() + + return user, None + + +def authenticate_api_key(api_key: str) -> tuple[Optional[User], Optional[str]]: + """Authenticate user with API key""" + user = User.query.filter_by(api_key=api_key).first() + + if not user: + return None, "Invalid API key" + + # Check if user can login + can_login, reason = user.can_login() + if not can_login: + return None, reason + + # Update last active + user.last_active_at = datetime.utcnow() + db.session.commit() + + return user, None + + +def create_tokens(user: User, session_id: Optional[str] = None) -> Dict[str, Any]: + """Create JWT tokens for user""" + # Generate JTIs + access_jti = str(uuid.uuid4()) + refresh_jti = str(uuid.uuid4()) + + # Create tokens with custom claims + identity = str(user.id) + additional_claims = { + 'username': user.username, + 'role': user.role, + 'permissions': user.permissions or [], + 'session_id': session_id + } + + access_token = create_access_token( + identity=identity, + additional_claims=additional_claims, + fresh=True + ) + + refresh_token = create_refresh_token( + identity=identity, + additional_claims={'session_id': session_id} + ) + + return { + 'access_token': access_token, + 'refresh_token': refresh_token, + 'token_type': 'Bearer', + 'expires_in': current_app.config['JWT_ACCESS_TOKEN_EXPIRES'].total_seconds() + } + + +def create_user_session(user: User, request_info: Dict[str, Any]) -> UserSession: + """Create a new user session""" + session = UserSession( + session_id=str(uuid.uuid4()), + user_id=user.id, + ip_address=request_info.get('ip_address'), + user_agent=request_info.get('user_agent'), + expires_at=datetime.utcnow() + timedelta(days=30) + ) + + db.session.add(session) + db.session.commit() + + return session + + +def log_login_attempt(user_id: Optional[uuid.UUID], success: bool, method: str, + failure_reason: Optional[str] = None, session_id: Optional[str] = None, + jwt_jti: Optional[str] = None) -> LoginHistory: + """Log a login attempt""" + login_record = LoginHistory( + user_id=user_id, + login_method=method, + success=success, + failure_reason=failure_reason, + session_id=session_id, + jwt_jti=jwt_jti, + ip_address=request.remote_addr, + user_agent=request.headers.get('User-Agent') + ) + + db.session.add(login_record) + db.session.commit() + + return login_record + + +def revoke_token(jti: str, token_type: str, user_id: Optional[uuid.UUID] = None, + reason: Optional[str] = None, expires_at: Optional[datetime] = None): + """Revoke a JWT token""" + if not expires_at: + # Default expiration based on token type + if token_type == 'access': + expires_at = datetime.utcnow() + current_app.config['JWT_ACCESS_TOKEN_EXPIRES'] + else: + expires_at = datetime.utcnow() + current_app.config['JWT_REFRESH_TOKEN_EXPIRES'] + + revoked = RevokedToken( + jti=jti, + token_type=token_type, + user_id=user_id, + reason=reason, + expires_at=expires_at + ) + + db.session.add(revoked) + db.session.commit() + + +def get_current_user() -> Optional[User]: + """Get current authenticated user from JWT, API key, or session""" + # Try JWT first + try: + verify_jwt_in_request(optional=True) + user_id = get_jwt_identity() + if user_id: + user = User.query.get(user_id) + if user and user.is_active and not user.is_suspended_now: + # Update last active + user.last_active_at = datetime.utcnow() + db.session.commit() + return user + except: + pass + + # Try API key from header + api_key = request.headers.get('X-API-Key') + if api_key: + user, _ = authenticate_api_key(api_key) + if user: + return user + + # Try API key from query parameter + api_key = request.args.get('api_key') + if api_key: + user, _ = authenticate_api_key(api_key) + if user: + return user + + # Try session-based authentication (for admin panel) + from flask import session + if session.get('logged_in') and session.get('user_id'): + # Check if it's the admin token user + if session.get('user_id') == 'admin-token-user' and session.get('user_role') == 'admin': + # Create a pseudo-admin user for session-based admin access + admin_user = User.query.filter_by(role='admin').first() + if admin_user: + return admin_user + else: + # Create a temporary admin user object (not saved to DB) + admin_user = User( + id=uuid.uuid4(), + username='admin', + email='admin@talk2me.local', + role='admin', + is_active=True, + is_verified=True, + is_suspended=False, + total_requests=0, + total_translations=0, + total_transcriptions=0, + total_tts_requests=0 + ) + # Don't add to session, just return for authorization + return admin_user + else: + # Regular user session + user = User.query.get(session.get('user_id')) + if user and user.is_active and not user.is_suspended_now: + # Update last active + user.last_active_at = datetime.utcnow() + db.session.commit() + return user + + return None + + +def require_auth(f: Callable) -> Callable: + """Decorator to require authentication (JWT, API key, or session)""" + @functools.wraps(f) + def decorated_function(*args, **kwargs): + user = get_current_user() + if not user: + return jsonify({ + 'success': False, + 'error': 'Authentication required', + 'code': 'auth_required' + }), 401 + + # Store user in g for access in route + g.current_user = user + + # Track usage only for database-backed users + try: + if hasattr(user, 'id') and db.session.query(User).filter_by(id=user.id).first(): + user.total_requests += 1 + db.session.commit() + except Exception as e: + # Ignore tracking errors for temporary users + pass + + return f(*args, **kwargs) + + return decorated_function + + +def require_admin(f: Callable) -> Callable: + """Decorator to require admin role""" + @functools.wraps(f) + @require_auth + def decorated_function(*args, **kwargs): + if not g.current_user.is_admin: + return jsonify({ + 'success': False, + 'error': 'Admin access required', + 'code': 'admin_required' + }), 403 + + return f(*args, **kwargs) + + return decorated_function + + +def require_permission(permission: str) -> Callable: + """Decorator to require specific permission""" + def decorator(f: Callable) -> Callable: + @functools.wraps(f) + @require_auth + def decorated_function(*args, **kwargs): + if not g.current_user.has_permission(permission): + return jsonify({ + 'success': False, + 'error': f'Permission required: {permission}', + 'code': 'permission_denied' + }), 403 + + return f(*args, **kwargs) + + return decorated_function + + return decorator + + +def require_verified(f: Callable) -> Callable: + """Decorator to require verified email""" + @functools.wraps(f) + @require_auth + def decorated_function(*args, **kwargs): + if not g.current_user.is_verified: + return jsonify({ + 'success': False, + 'error': 'Email verification required', + 'code': 'verification_required' + }), 403 + + return f(*args, **kwargs) + + return decorated_function + + +def get_user_rate_limits(user: User) -> Dict[str, int]: + """Get user-specific rate limits""" + return { + 'per_minute': user.rate_limit_per_minute, + 'per_hour': user.rate_limit_per_hour, + 'per_day': user.rate_limit_per_day + } + + +def check_user_rate_limit(user: User, endpoint: str) -> tuple[bool, Optional[str]]: + """Check if user has exceeded rate limits""" + # This would integrate with the existing rate limiter + # For now, return True to allow requests + return True, None + + +def update_user_usage_stats(user: User, operation: str) -> None: + """Update user usage statistics""" + user.total_requests += 1 + + if operation == 'translation': + user.total_translations += 1 + elif operation == 'transcription': + user.total_transcriptions += 1 + elif operation == 'tts': + user.total_tts_requests += 1 + + user.last_active_at = datetime.utcnow() + db.session.commit() + + +def cleanup_expired_sessions() -> int: + """Clean up expired user sessions""" + deleted = UserSession.query.filter( + UserSession.expires_at < datetime.utcnow() + ).delete() + db.session.commit() + return deleted + + +def cleanup_expired_tokens() -> int: + """Clean up expired revoked tokens""" + return RevokedToken.cleanup_expired() + + +def get_user_sessions(user_id: Union[str, uuid.UUID]) -> List[UserSession]: + """Get all active sessions for a user""" + return UserSession.query.filter_by( + user_id=user_id + ).filter( + UserSession.expires_at > datetime.utcnow() + ).order_by(UserSession.last_active_at.desc()).all() + + +def revoke_user_sessions(user_id: Union[str, uuid.UUID], except_session: Optional[str] = None) -> int: + """Revoke all sessions for a user""" + sessions = UserSession.query.filter_by(user_id=user_id) + + if except_session: + sessions = sessions.filter(UserSession.session_id != except_session) + + count = 0 + for session in sessions: + # Revoke associated tokens + if session.access_token_jti: + revoke_token(session.access_token_jti, 'access', user_id, 'Session revoked') + if session.refresh_token_jti: + revoke_token(session.refresh_token_jti, 'refresh', user_id, 'Session revoked') + count += 1 + + # Delete sessions + sessions.delete() + db.session.commit() + + return count \ No newline at end of file diff --git a/auth_models.py b/auth_models.py new file mode 100644 index 0000000..1990e7f --- /dev/null +++ b/auth_models.py @@ -0,0 +1,366 @@ +"""Authentication models for Talk2Me application""" +import uuid +import secrets +from datetime import datetime, timedelta +from typing import Optional, Dict, Any, List +from flask_sqlalchemy import SQLAlchemy +from flask_bcrypt import Bcrypt +from sqlalchemy import Index, text, func +from sqlalchemy.dialects.postgresql import UUID, JSONB, ENUM +from sqlalchemy.ext.hybrid import hybrid_property +from sqlalchemy.orm import relationship + +from database import db + +bcrypt = Bcrypt() + + +class User(db.Model): + """User account model with authentication and authorization""" + __tablename__ = 'users' + + id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4) + email = db.Column(db.String(255), unique=True, nullable=False, index=True) + username = db.Column(db.String(100), unique=True, nullable=False, index=True) + password_hash = db.Column(db.String(255), nullable=False) + + # User profile + full_name = db.Column(db.String(255), nullable=True) + avatar_url = db.Column(db.String(500), nullable=True) + + # API Key - unique per user + api_key = db.Column(db.String(64), unique=True, nullable=False, index=True) + api_key_created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + + # Account status + is_active = db.Column(db.Boolean, default=True, nullable=False) + is_verified = db.Column(db.Boolean, default=False, nullable=False) + is_suspended = db.Column(db.Boolean, default=False, nullable=False) + suspension_reason = db.Column(db.Text, nullable=True) + suspended_at = db.Column(db.DateTime, nullable=True) + suspended_until = db.Column(db.DateTime, nullable=True) + + # Role and permissions + role = db.Column(db.String(20), nullable=False, default='user') # admin, user + permissions = db.Column(JSONB, default=[], nullable=False) # Additional granular permissions + + # Usage limits (per user) + rate_limit_per_minute = db.Column(db.Integer, default=30, nullable=False) + rate_limit_per_hour = db.Column(db.Integer, default=500, nullable=False) + rate_limit_per_day = db.Column(db.Integer, default=5000, nullable=False) + + # Usage tracking + total_requests = db.Column(db.Integer, default=0, nullable=False) + total_translations = db.Column(db.Integer, default=0, nullable=False) + total_transcriptions = db.Column(db.Integer, default=0, nullable=False) + total_tts_requests = db.Column(db.Integer, default=0, nullable=False) + + # Timestamps + created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + updated_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow, onupdate=datetime.utcnow) + last_login_at = db.Column(db.DateTime, nullable=True) + last_active_at = db.Column(db.DateTime, nullable=True) + + # Security + password_changed_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + failed_login_attempts = db.Column(db.Integer, default=0, nullable=False) + locked_until = db.Column(db.DateTime, nullable=True) + + # Settings + settings = db.Column(JSONB, default={}, nullable=False) + + # Relationships + login_history = relationship('LoginHistory', back_populates='user', cascade='all, delete-orphan') + sessions = relationship('UserSession', back_populates='user', cascade='all, delete-orphan') + + __table_args__ = ( + Index('idx_users_email_active', 'email', 'is_active'), + Index('idx_users_role_active', 'role', 'is_active'), + Index('idx_users_created_at', 'created_at'), + ) + + def __init__(self, **kwargs): + super(User, self).__init__(**kwargs) + if not self.api_key: + self.api_key = self.generate_api_key() + + @staticmethod + def generate_api_key() -> str: + """Generate a secure API key""" + return f"tk_{secrets.token_urlsafe(32)}" + + def regenerate_api_key(self) -> str: + """Regenerate user's API key""" + self.api_key = self.generate_api_key() + self.api_key_created_at = datetime.utcnow() + return self.api_key + + def set_password(self, password: str) -> None: + """Hash and set user password""" + self.password_hash = bcrypt.generate_password_hash(password).decode('utf-8') + self.password_changed_at = datetime.utcnow() + + def check_password(self, password: str) -> bool: + """Check if provided password matches hash""" + return bcrypt.check_password_hash(self.password_hash, password) + + @hybrid_property + def is_admin(self) -> bool: + """Check if user has admin role""" + return self.role == 'admin' + + @hybrid_property + def is_locked(self) -> bool: + """Check if account is locked due to failed login attempts""" + if self.locked_until is None: + return False + return datetime.utcnow() < self.locked_until + + @hybrid_property + def is_suspended_now(self) -> bool: + """Check if account is currently suspended""" + if not self.is_suspended: + return False + if self.suspended_until is None: + return True # Indefinite suspension + return datetime.utcnow() < self.suspended_until + + def can_login(self) -> tuple[bool, Optional[str]]: + """Check if user can login""" + if not self.is_active: + return False, "Account is deactivated" + if self.is_locked: + return False, "Account is locked due to failed login attempts" + if self.is_suspended_now: + return False, f"Account is suspended: {self.suspension_reason or 'Policy violation'}" + return True, None + + def record_login_attempt(self, success: bool) -> None: + """Record login attempt and handle lockout""" + if success: + self.failed_login_attempts = 0 + self.locked_until = None + self.last_login_at = datetime.utcnow() + else: + self.failed_login_attempts += 1 + # Lock account after 5 failed attempts + if self.failed_login_attempts >= 5: + self.locked_until = datetime.utcnow() + timedelta(minutes=30) + + def has_permission(self, permission: str) -> bool: + """Check if user has specific permission""" + if self.is_admin: + return True # Admins have all permissions + return permission in (self.permissions or []) + + def add_permission(self, permission: str) -> None: + """Add permission to user""" + if self.permissions is None: + self.permissions = [] + if permission not in self.permissions: + self.permissions = self.permissions + [permission] + + def remove_permission(self, permission: str) -> None: + """Remove permission from user""" + if self.permissions and permission in self.permissions: + self.permissions = [p for p in self.permissions if p != permission] + + def suspend(self, reason: str, until: Optional[datetime] = None) -> None: + """Suspend user account""" + self.is_suspended = True + self.suspension_reason = reason + self.suspended_at = datetime.utcnow() + self.suspended_until = until + + def unsuspend(self) -> None: + """Unsuspend user account""" + self.is_suspended = False + self.suspension_reason = None + self.suspended_at = None + self.suspended_until = None + + def to_dict(self, include_sensitive: bool = False) -> Dict[str, Any]: + """Convert user to dictionary""" + data = { + 'id': str(self.id), + 'email': self.email, + 'username': self.username, + 'full_name': self.full_name, + 'avatar_url': self.avatar_url, + 'role': self.role, + 'is_active': self.is_active, + 'is_verified': self.is_verified, + 'is_suspended': self.is_suspended_now, + 'created_at': self.created_at.isoformat(), + 'last_login_at': self.last_login_at.isoformat() if self.last_login_at else None, + 'last_active_at': self.last_active_at.isoformat() if self.last_active_at else None, + 'total_requests': self.total_requests, + 'total_translations': self.total_translations, + 'total_transcriptions': self.total_transcriptions, + 'total_tts_requests': self.total_tts_requests, + 'settings': self.settings or {} + } + + if include_sensitive: + data.update({ + 'api_key': self.api_key, + 'api_key_created_at': self.api_key_created_at.isoformat(), + 'permissions': self.permissions or [], + 'rate_limit_per_minute': self.rate_limit_per_minute, + 'rate_limit_per_hour': self.rate_limit_per_hour, + 'rate_limit_per_day': self.rate_limit_per_day, + 'suspension_reason': self.suspension_reason, + 'suspended_until': self.suspended_until.isoformat() if self.suspended_until else None, + 'failed_login_attempts': self.failed_login_attempts, + 'is_locked': self.is_locked + }) + + return data + + +class LoginHistory(db.Model): + """Track user login history for security auditing""" + __tablename__ = 'login_history' + + id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4) + user_id = db.Column(UUID(as_uuid=True), db.ForeignKey('users.id'), nullable=False, index=True) + + # Login details + login_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + logout_at = db.Column(db.DateTime, nullable=True) + login_method = db.Column(db.String(20), nullable=False) # password, api_key, jwt + success = db.Column(db.Boolean, nullable=False) + failure_reason = db.Column(db.String(255), nullable=True) + + # Session info + session_id = db.Column(db.String(255), nullable=True, index=True) + jwt_jti = db.Column(db.String(255), nullable=True, index=True) # JWT ID for revocation + + # Client info + ip_address = db.Column(db.String(45), nullable=False) + user_agent = db.Column(db.String(500), nullable=True) + device_info = db.Column(JSONB, nullable=True) # Parsed user agent info + + # Location info (if available) + country = db.Column(db.String(2), nullable=True) + city = db.Column(db.String(100), nullable=True) + + # Security flags + is_suspicious = db.Column(db.Boolean, default=False, nullable=False) + security_notes = db.Column(db.Text, nullable=True) + + # Relationship + user = relationship('User', back_populates='login_history') + + __table_args__ = ( + Index('idx_login_history_user_time', 'user_id', 'login_at'), + Index('idx_login_history_session', 'session_id'), + Index('idx_login_history_ip', 'ip_address'), + ) + + def to_dict(self) -> Dict[str, Any]: + """Convert login history to dictionary""" + return { + 'id': str(self.id), + 'user_id': str(self.user_id), + 'login_at': self.login_at.isoformat(), + 'logout_at': self.logout_at.isoformat() if self.logout_at else None, + 'login_method': self.login_method, + 'success': self.success, + 'failure_reason': self.failure_reason, + 'session_id': self.session_id, + 'ip_address': self.ip_address, + 'user_agent': self.user_agent, + 'device_info': self.device_info, + 'country': self.country, + 'city': self.city, + 'is_suspicious': self.is_suspicious, + 'security_notes': self.security_notes + } + + +class UserSession(db.Model): + """Active user sessions for session management""" + __tablename__ = 'user_sessions' + + id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4) + session_id = db.Column(db.String(255), unique=True, nullable=False, index=True) + user_id = db.Column(UUID(as_uuid=True), db.ForeignKey('users.id'), nullable=False, index=True) + + # JWT tokens + access_token_jti = db.Column(db.String(255), nullable=True, index=True) + refresh_token_jti = db.Column(db.String(255), nullable=True, index=True) + + # Session info + created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + last_active_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + expires_at = db.Column(db.DateTime, nullable=False) + + # Client info + ip_address = db.Column(db.String(45), nullable=False) + user_agent = db.Column(db.String(500), nullable=True) + + # Session data + data = db.Column(JSONB, default={}, nullable=False) + + # Relationship + user = relationship('User', back_populates='sessions') + + __table_args__ = ( + Index('idx_user_sessions_user_active', 'user_id', 'expires_at'), + Index('idx_user_sessions_token', 'access_token_jti'), + ) + + @hybrid_property + def is_expired(self) -> bool: + """Check if session is expired""" + return datetime.utcnow() > self.expires_at + + def refresh(self, duration_hours: int = 24) -> None: + """Refresh session expiration""" + self.last_active_at = datetime.utcnow() + self.expires_at = datetime.utcnow() + timedelta(hours=duration_hours) + + def to_dict(self) -> Dict[str, Any]: + """Convert session to dictionary""" + return { + 'id': str(self.id), + 'session_id': self.session_id, + 'user_id': str(self.user_id), + 'created_at': self.created_at.isoformat(), + 'last_active_at': self.last_active_at.isoformat(), + 'expires_at': self.expires_at.isoformat(), + 'is_expired': self.is_expired, + 'ip_address': self.ip_address, + 'user_agent': self.user_agent, + 'data': self.data or {} + } + + +class RevokedToken(db.Model): + """Store revoked JWT tokens for blacklisting""" + __tablename__ = 'revoked_tokens' + + id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4) + jti = db.Column(db.String(255), unique=True, nullable=False, index=True) + token_type = db.Column(db.String(20), nullable=False) # access, refresh + user_id = db.Column(UUID(as_uuid=True), nullable=True, index=True) + revoked_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + expires_at = db.Column(db.DateTime, nullable=False) # When token would have expired + reason = db.Column(db.String(255), nullable=True) + + __table_args__ = ( + Index('idx_revoked_tokens_expires', 'expires_at'), + ) + + @classmethod + def is_token_revoked(cls, jti: str) -> bool: + """Check if a token JTI is revoked""" + return cls.query.filter_by(jti=jti).first() is not None + + @classmethod + def cleanup_expired(cls) -> int: + """Remove revoked tokens that have expired anyway""" + deleted = cls.query.filter(cls.expires_at < datetime.utcnow()).delete() + db.session.commit() + return deleted \ No newline at end of file diff --git a/auth_routes.py b/auth_routes.py new file mode 100644 index 0000000..8d57ba0 --- /dev/null +++ b/auth_routes.py @@ -0,0 +1,899 @@ +"""Authentication and user management routes""" +import os +from datetime import datetime, timedelta +from flask import Blueprint, request, jsonify, g +from flask_jwt_extended import jwt_required, get_jwt_identity, get_jwt +from sqlalchemy import or_, func +from werkzeug.exceptions import BadRequest + +from database import db +from auth_models import User, LoginHistory, UserSession +from auth import ( + create_user, authenticate_user, create_tokens, create_user_session, + revoke_token, get_current_user, require_admin, + require_auth, revoke_user_sessions, update_user_usage_stats +) +from rate_limiter import rate_limit +from validators import Validators +from error_logger import log_exception + +auth_bp = Blueprint('auth', __name__) + + +@auth_bp.route('/login', methods=['POST']) +@rate_limit(requests_per_minute=5, requests_per_hour=30) +def login(): + """User login endpoint""" + try: + data = request.get_json() + + # Validate input + username_or_email = data.get('username') or data.get('email') + password = data.get('password') + + if not username_or_email or not password: + return jsonify({ + 'success': False, + 'error': 'Username/email and password required' + }), 400 + + # Authenticate user + user, error = authenticate_user(username_or_email, password) + if error: + # Log failed attempt + login_record = LoginHistory( + user_id=None, + login_method='password', + success=False, + failure_reason=error, + ip_address=request.remote_addr, + user_agent=request.headers.get('User-Agent') + ) + db.session.add(login_record) + db.session.commit() + + return jsonify({ + 'success': False, + 'error': error + }), 401 + + # Create session + session = create_user_session(user, { + 'ip_address': request.remote_addr, + 'user_agent': request.headers.get('User-Agent') + }) + + # Create tokens + tokens = create_tokens(user, session.session_id) + + # Note: We can't get JWT payload here since we haven't set the JWT context yet + # The session JTI will be updated on the next authenticated request + db.session.commit() + + # Log successful login with request info + login_record = LoginHistory( + user_id=user.id, + login_method='password', + success=True, + session_id=session.session_id, + ip_address=request.remote_addr, + user_agent=request.headers.get('User-Agent') + ) + db.session.add(login_record) + db.session.commit() + + # Store user info in Flask session for web access + from flask import session as flask_session + flask_session['user_id'] = str(user.id) + flask_session['username'] = user.username + flask_session['user_role'] = user.role + flask_session['logged_in'] = True + + return jsonify({ + 'success': True, + 'user': user.to_dict(), + 'tokens': tokens, + 'session_id': session.session_id + }) + + except Exception as e: + log_exception(e, "Login error") + # In development, show the actual error + import os + if os.environ.get('FLASK_ENV') == 'development': + return jsonify({ + 'success': False, + 'error': f'Login failed: {str(e)}' + }), 500 + else: + return jsonify({ + 'success': False, + 'error': 'Login failed' + }), 500 + + +@auth_bp.route('/logout', methods=['POST']) +@jwt_required() +def logout(): + """User logout endpoint""" + try: + jti = get_jwt()["jti"] + user_id = get_jwt_identity() + + # Revoke the access token + revoke_token(jti, 'access', user_id, 'User logout') + + # Update login history + session_id = get_jwt().get('session_id') + if session_id: + login_record = LoginHistory.query.filter_by( + session_id=session_id, + logout_at=None + ).first() + if login_record: + login_record.logout_at = datetime.utcnow() + db.session.commit() + + return jsonify({ + 'success': True, + 'message': 'Successfully logged out' + }) + + except Exception as e: + log_exception(e, "Logout error") + return jsonify({ + 'success': False, + 'error': 'Logout failed' + }), 500 + + +@auth_bp.route('/refresh', methods=['POST']) +@jwt_required(refresh=True) +def refresh_token(): + """Refresh access token""" + try: + user_id = get_jwt_identity() + user = User.query.get(user_id) + + if not user or not user.is_active: + return jsonify({ + 'success': False, + 'error': 'Invalid user' + }), 401 + + # Check if user can login + can_login, reason = user.can_login() + if not can_login: + return jsonify({ + 'success': False, + 'error': reason + }), 401 + + # Create new access token + session_id = get_jwt().get('session_id') + tokens = create_tokens(user, session_id) + + # Update session if exists + if session_id: + session = UserSession.query.filter_by(session_id=session_id).first() + if session: + session.refresh() + db.session.commit() + + return jsonify({ + 'success': True, + 'access_token': tokens['access_token'], + 'expires_in': tokens['expires_in'] + }) + + except Exception as e: + log_exception(e, "Token refresh error") + return jsonify({ + 'success': False, + 'error': 'Token refresh failed' + }), 500 + + +@auth_bp.route('/profile', methods=['GET']) +@require_auth +def get_profile(): + """Get current user profile""" + try: + return jsonify({ + 'success': True, + 'user': g.current_user.to_dict(include_sensitive=True) + }) + except Exception as e: + log_exception(e, "Profile fetch error") + return jsonify({ + 'success': False, + 'error': 'Failed to fetch profile' + }), 500 + + +@auth_bp.route('/profile', methods=['PUT']) +@require_auth +def update_profile(): + """Update user profile""" + try: + data = request.get_json() + user = g.current_user + + # Update allowed fields + if 'full_name' in data: + user.full_name = Validators.sanitize_text(data['full_name'], max_length=255) + + if 'avatar_url' in data: + validated_url = Validators.validate_url(data['avatar_url']) + if validated_url: + user.avatar_url = validated_url + + if 'settings' in data and isinstance(data['settings'], dict): + user.settings = {**user.settings, **data['settings']} + + db.session.commit() + + return jsonify({ + 'success': True, + 'user': user.to_dict(include_sensitive=True) + }) + + except Exception as e: + log_exception(e, "Profile update error") + return jsonify({ + 'success': False, + 'error': 'Failed to update profile' + }), 500 + + +@auth_bp.route('/change-password', methods=['POST']) +@require_auth +def change_password(): + """Change user password""" + try: + data = request.get_json() + user = g.current_user + + current_password = data.get('current_password') + new_password = data.get('new_password') + + if not current_password or not new_password: + return jsonify({ + 'success': False, + 'error': 'Current and new passwords required' + }), 400 + + # Verify current password + if not user.check_password(current_password): + return jsonify({ + 'success': False, + 'error': 'Invalid current password' + }), 401 + + # Validate new password + if len(new_password) < 8: + return jsonify({ + 'success': False, + 'error': 'Password must be at least 8 characters' + }), 400 + + # Update password + user.set_password(new_password) + db.session.commit() + + # Revoke all sessions except current + session_id = get_jwt().get('session_id') if hasattr(g, 'jwt_payload') else None + revoked_count = revoke_user_sessions(user.id, except_session=session_id) + + return jsonify({ + 'success': True, + 'message': 'Password changed successfully', + 'revoked_sessions': revoked_count + }) + + except Exception as e: + log_exception(e, "Password change error") + return jsonify({ + 'success': False, + 'error': 'Failed to change password' + }), 500 + + +@auth_bp.route('/regenerate-api-key', methods=['POST']) +@require_auth +def regenerate_api_key(): + """Regenerate user's API key""" + try: + user = g.current_user + new_key = user.regenerate_api_key() + db.session.commit() + + return jsonify({ + 'success': True, + 'api_key': new_key, + 'created_at': user.api_key_created_at.isoformat() + }) + + except Exception as e: + log_exception(e, "API key regeneration error") + return jsonify({ + 'success': False, + 'error': 'Failed to regenerate API key' + }), 500 + + +@auth_bp.route('/sessions', methods=['GET']) +@require_auth +def get_user_sessions(): + """Get user's active sessions""" + try: + sessions = UserSession.query.filter_by( + user_id=g.current_user.id + ).filter( + UserSession.expires_at > datetime.utcnow() + ).order_by(UserSession.last_active_at.desc()).all() + + return jsonify({ + 'success': True, + 'sessions': [s.to_dict() for s in sessions] + }) + + except Exception as e: + log_exception(e, "Sessions fetch error") + return jsonify({ + 'success': False, + 'error': 'Failed to fetch sessions' + }), 500 + + +@auth_bp.route('/sessions/', methods=['DELETE']) +@require_auth +def revoke_session(session_id): + """Revoke a specific session""" + try: + session = UserSession.query.filter_by( + session_id=session_id, + user_id=g.current_user.id + ).first() + + if not session: + return jsonify({ + 'success': False, + 'error': 'Session not found' + }), 404 + + # Revoke tokens + if session.access_token_jti: + revoke_token(session.access_token_jti, 'access', g.current_user.id, 'Session revoked by user') + if session.refresh_token_jti: + revoke_token(session.refresh_token_jti, 'refresh', g.current_user.id, 'Session revoked by user') + + # Delete session + db.session.delete(session) + db.session.commit() + + return jsonify({ + 'success': True, + 'message': 'Session revoked successfully' + }) + + except Exception as e: + log_exception(e, "Session revocation error") + return jsonify({ + 'success': False, + 'error': 'Failed to revoke session' + }), 500 + + +# Admin endpoints for user management + +@auth_bp.route('/admin/users', methods=['GET']) +@require_admin +def admin_list_users(): + """List all users (admin only)""" + try: + # Get query parameters + page = request.args.get('page', 1, type=int) + per_page = request.args.get('per_page', 20, type=int) + search = request.args.get('search', '') + role = request.args.get('role') + status = request.args.get('status') + sort_by = request.args.get('sort_by', 'created_at') + sort_order = request.args.get('sort_order', 'desc') + + # Build query + query = User.query + + # Search filter + if search: + search_term = f'%{search}%' + query = query.filter(or_( + User.email.ilike(search_term), + User.username.ilike(search_term), + User.full_name.ilike(search_term) + )) + + # Role filter + if role: + query = query.filter(User.role == role) + + # Status filter + if status == 'active': + query = query.filter(User.is_active == True, User.is_suspended == False) + elif status == 'suspended': + query = query.filter(User.is_suspended == True) + elif status == 'inactive': + query = query.filter(User.is_active == False) + + # Sorting + order_column = getattr(User, sort_by, User.created_at) + if sort_order == 'desc': + query = query.order_by(order_column.desc()) + else: + query = query.order_by(order_column.asc()) + + # Paginate + pagination = query.paginate(page=page, per_page=per_page, error_out=False) + + return jsonify({ + 'success': True, + 'users': [u.to_dict(include_sensitive=True) for u in pagination.items], + 'pagination': { + 'page': pagination.page, + 'per_page': pagination.per_page, + 'total': pagination.total, + 'pages': pagination.pages + } + }) + + except Exception as e: + log_exception(e, "Admin user list error") + return jsonify({ + 'success': False, + 'error': 'Failed to fetch users' + }), 500 + + +@auth_bp.route('/admin/users', methods=['POST']) +@require_admin +def admin_create_user(): + """Create a new user (admin only)""" + try: + data = request.get_json() + + # Validate required fields + email = data.get('email') + username = data.get('username') + password = data.get('password') + + if not email or not username or not password: + return jsonify({ + 'success': False, + 'error': 'Email, username, and password are required' + }), 400 + + # Validate email + if not Validators.validate_email(email): + return jsonify({ + 'success': False, + 'error': 'Invalid email address' + }), 400 + + # Create user + user, error = create_user( + email=email, + username=username, + password=password, + full_name=data.get('full_name'), + role=data.get('role', 'user'), + is_verified=data.get('is_verified', False) + ) + + if error: + return jsonify({ + 'success': False, + 'error': error + }), 400 + + # Set additional properties + if 'rate_limit_per_minute' in data: + user.rate_limit_per_minute = data['rate_limit_per_minute'] + if 'rate_limit_per_hour' in data: + user.rate_limit_per_hour = data['rate_limit_per_hour'] + if 'rate_limit_per_day' in data: + user.rate_limit_per_day = data['rate_limit_per_day'] + if 'permissions' in data: + user.permissions = data['permissions'] + + db.session.commit() + + return jsonify({ + 'success': True, + 'user': user.to_dict(include_sensitive=True) + }), 201 + + except Exception as e: + log_exception(e, "Admin user creation error") + return jsonify({ + 'success': False, + 'error': 'Failed to create user' + }), 500 + + +@auth_bp.route('/admin/users/', methods=['GET']) +@require_admin +def admin_get_user(user_id): + """Get user details (admin only)""" + try: + user = User.query.get(user_id) + if not user: + return jsonify({ + 'success': False, + 'error': 'User not found' + }), 404 + + # Get additional info + login_history = LoginHistory.query.filter_by( + user_id=user.id + ).order_by(LoginHistory.login_at.desc()).limit(10).all() + + active_sessions = UserSession.query.filter_by( + user_id=user.id + ).filter( + UserSession.expires_at > datetime.utcnow() + ).all() + + return jsonify({ + 'success': True, + 'user': user.to_dict(include_sensitive=True), + 'login_history': [l.to_dict() for l in login_history], + 'active_sessions': [s.to_dict() for s in active_sessions] + }) + + except Exception as e: + log_exception(e, "Admin user fetch error") + return jsonify({ + 'success': False, + 'error': 'Failed to fetch user' + }), 500 + + +@auth_bp.route('/admin/users/', methods=['PUT']) +@require_admin +def admin_update_user(user_id): + """Update user (admin only)""" + try: + user = User.query.get(user_id) + if not user: + return jsonify({ + 'success': False, + 'error': 'User not found' + }), 404 + + data = request.get_json() + + # Update allowed fields + if 'email' in data: + if Validators.validate_email(data['email']): + user.email = data['email'] + + if 'username' in data: + user.username = data['username'] + + if 'full_name' in data: + user.full_name = data['full_name'] + + if 'role' in data and data['role'] in ['admin', 'user']: + user.role = data['role'] + + if 'is_active' in data: + user.is_active = data['is_active'] + + if 'is_verified' in data: + user.is_verified = data['is_verified'] + + if 'permissions' in data: + user.permissions = data['permissions'] + + if 'rate_limit_per_minute' in data: + user.rate_limit_per_minute = data['rate_limit_per_minute'] + + if 'rate_limit_per_hour' in data: + user.rate_limit_per_hour = data['rate_limit_per_hour'] + + if 'rate_limit_per_day' in data: + user.rate_limit_per_day = data['rate_limit_per_day'] + + db.session.commit() + + return jsonify({ + 'success': True, + 'user': user.to_dict(include_sensitive=True) + }) + + except Exception as e: + log_exception(e, "Admin user update error") + return jsonify({ + 'success': False, + 'error': 'Failed to update user' + }), 500 + + +@auth_bp.route('/admin/users/', methods=['DELETE']) +@require_admin +def admin_delete_user(user_id): + """Delete user (admin only)""" + try: + user = User.query.get(user_id) + if not user: + return jsonify({ + 'success': False, + 'error': 'User not found' + }), 404 + + # Don't allow deleting admin users + if user.is_admin: + return jsonify({ + 'success': False, + 'error': 'Cannot delete admin users' + }), 403 + + # Revoke all sessions + revoke_user_sessions(user.id) + + # Delete user (cascades to related records) + db.session.delete(user) + db.session.commit() + + return jsonify({ + 'success': True, + 'message': 'User deleted successfully' + }) + + except Exception as e: + log_exception(e, "Admin user deletion error") + return jsonify({ + 'success': False, + 'error': 'Failed to delete user' + }), 500 + + +@auth_bp.route('/admin/users//suspend', methods=['POST']) +@require_admin +def admin_suspend_user(user_id): + """Suspend user account (admin only)""" + try: + user = User.query.get(user_id) + if not user: + return jsonify({ + 'success': False, + 'error': 'User not found' + }), 404 + + data = request.get_json() + reason = data.get('reason', 'Policy violation') + until = data.get('until') # ISO datetime string or None for indefinite + + # Parse until date if provided + suspend_until = None + if until: + try: + suspend_until = datetime.fromisoformat(until.replace('Z', '+00:00')) + except: + return jsonify({ + 'success': False, + 'error': 'Invalid date format for until' + }), 400 + + # Suspend user + user.suspend(reason, suspend_until) + + # Revoke all sessions + revoked_count = revoke_user_sessions(user.id) + + db.session.commit() + + return jsonify({ + 'success': True, + 'message': 'User suspended successfully', + 'revoked_sessions': revoked_count, + 'suspended_until': suspend_until.isoformat() if suspend_until else None + }) + + except Exception as e: + log_exception(e, "Admin user suspension error") + return jsonify({ + 'success': False, + 'error': 'Failed to suspend user' + }), 500 + + +@auth_bp.route('/admin/users//unsuspend', methods=['POST']) +@require_admin +def admin_unsuspend_user(user_id): + """Unsuspend user account (admin only)""" + try: + user = User.query.get(user_id) + if not user: + return jsonify({ + 'success': False, + 'error': 'User not found' + }), 404 + + user.unsuspend() + db.session.commit() + + return jsonify({ + 'success': True, + 'message': 'User unsuspended successfully' + }) + + except Exception as e: + log_exception(e, "Admin user unsuspension error") + return jsonify({ + 'success': False, + 'error': 'Failed to unsuspend user' + }), 500 + + +@auth_bp.route('/admin/users//reset-password', methods=['POST']) +@require_admin +def admin_reset_password(user_id): + """Reset user password (admin only)""" + try: + user = User.query.get(user_id) + if not user: + return jsonify({ + 'success': False, + 'error': 'User not found' + }), 404 + + data = request.get_json() + new_password = data.get('password') + + if not new_password or len(new_password) < 8: + return jsonify({ + 'success': False, + 'error': 'Password must be at least 8 characters' + }), 400 + + # Reset password + user.set_password(new_password) + user.failed_login_attempts = 0 + user.locked_until = None + + # Revoke all sessions + revoked_count = revoke_user_sessions(user.id) + + db.session.commit() + + return jsonify({ + 'success': True, + 'message': 'Password reset successfully', + 'revoked_sessions': revoked_count + }) + + except Exception as e: + log_exception(e, "Admin password reset error") + return jsonify({ + 'success': False, + 'error': 'Failed to reset password' + }), 500 + + +@auth_bp.route('/admin/users/bulk', methods=['POST']) +@require_admin +def admin_bulk_operation(): + """Perform bulk operations on users (admin only)""" + try: + data = request.get_json() + user_ids = data.get('user_ids', []) + operation = data.get('operation') + + if not user_ids or not operation: + return jsonify({ + 'success': False, + 'error': 'User IDs and operation required' + }), 400 + + # Get users + users = User.query.filter(User.id.in_(user_ids)).all() + + if not users: + return jsonify({ + 'success': False, + 'error': 'No users found' + }), 404 + + results = { + 'success': 0, + 'failed': 0, + 'errors': [] + } + + for user in users: + try: + if operation == 'suspend': + user.suspend(data.get('reason', 'Bulk suspension')) + revoke_user_sessions(user.id) + elif operation == 'unsuspend': + user.unsuspend() + elif operation == 'activate': + user.is_active = True + elif operation == 'deactivate': + user.is_active = False + revoke_user_sessions(user.id) + elif operation == 'verify': + user.is_verified = True + elif operation == 'unverify': + user.is_verified = False + elif operation == 'delete': + if not user.is_admin: + revoke_user_sessions(user.id) + db.session.delete(user) + else: + results['errors'].append(f"Cannot delete admin user {user.username}") + results['failed'] += 1 + continue + else: + results['errors'].append(f"Unknown operation for user {user.username}") + results['failed'] += 1 + continue + + results['success'] += 1 + except Exception as e: + results['errors'].append(f"Failed for user {user.username}: {str(e)}") + results['failed'] += 1 + + db.session.commit() + + return jsonify({ + 'success': True, + 'results': results + }) + + except Exception as e: + log_exception(e, "Admin bulk operation error") + return jsonify({ + 'success': False, + 'error': 'Failed to perform bulk operation' + }), 500 + + +@auth_bp.route('/admin/stats/users', methods=['GET']) +@require_admin +def admin_user_stats(): + """Get user statistics (admin only)""" + try: + stats = { + 'total_users': User.query.count(), + 'active_users': User.query.filter( + User.is_active == True, + User.is_suspended == False + ).count(), + 'suspended_users': User.query.filter(User.is_suspended == True).count(), + 'verified_users': User.query.filter(User.is_verified == True).count(), + 'admin_users': User.query.filter(User.role == 'admin').count(), + 'users_by_role': dict( + db.session.query(User.role, func.count(User.id)) + .group_by(User.role).all() + ), + 'recent_registrations': User.query.filter( + User.created_at >= datetime.utcnow() - timedelta(days=7) + ).count(), + 'active_sessions': UserSession.query.filter( + UserSession.expires_at > datetime.utcnow() + ).count() + } + + return jsonify({ + 'success': True, + 'stats': stats + }) + + except Exception as e: + log_exception(e, "Admin stats error") + return jsonify({ + 'success': False, + 'error': 'Failed to fetch statistics' + }), 500 \ No newline at end of file diff --git a/check_services.py b/check_services.py new file mode 100644 index 0000000..3046ca0 --- /dev/null +++ b/check_services.py @@ -0,0 +1,48 @@ +#!/usr/bin/env python3 +""" +Check if Redis and PostgreSQL are available +""" +import os +import sys +from dotenv import load_dotenv + +# Load environment variables +load_dotenv() + +def check_redis(): + """Check if Redis is available""" + try: + import redis + r = redis.Redis.from_url(os.environ.get('REDIS_URL', 'redis://localhost:6379/0')) + r.ping() + return True + except: + return False + +def check_postgresql(): + """Check if PostgreSQL is available""" + try: + from sqlalchemy import create_engine, text + db_url = os.environ.get('DATABASE_URL', 'postgresql://localhost/talk2me') + engine = create_engine(db_url, pool_pre_ping=True) + with engine.connect() as conn: + result = conn.execute(text("SELECT 1")) + result.fetchone() + return True + except Exception as e: + print(f"PostgreSQL connection error: {e}") + return False + +if __name__ == '__main__': + redis_ok = check_redis() + postgres_ok = check_postgresql() + + print(f"Redis: {'✓ Available' if redis_ok else '✗ Not available'}") + print(f"PostgreSQL: {'✓ Available' if postgres_ok else '✗ Not available'}") + + if redis_ok and postgres_ok: + print("\nAll services available - use full admin module") + sys.exit(0) + else: + print("\nSome services missing - use simple admin module") + sys.exit(1) \ No newline at end of file diff --git a/config.py b/config.py index 2b69632..8932699 100644 --- a/config.py +++ b/config.py @@ -46,13 +46,23 @@ class Config: self.ADMIN_TOKEN = self._get_secret('ADMIN_TOKEN', os.environ.get('ADMIN_TOKEN', 'default-admin-token')) - # Database configuration (for future use) + # Database configuration self.DATABASE_URL = self._get_secret('DATABASE_URL', - os.environ.get('DATABASE_URL', 'sqlite:///talk2me.db')) + os.environ.get('DATABASE_URL', 'postgresql://localhost/talk2me')) + self.SQLALCHEMY_DATABASE_URI = self.DATABASE_URL + self.SQLALCHEMY_TRACK_MODIFICATIONS = False + self.SQLALCHEMY_ENGINE_OPTIONS = { + 'pool_size': 10, + 'pool_recycle': 3600, + 'pool_pre_ping': True + } - # Redis configuration (for future use) + # Redis configuration self.REDIS_URL = self._get_secret('REDIS_URL', os.environ.get('REDIS_URL', 'redis://localhost:6379/0')) + self.REDIS_DECODE_RESPONSES = False + self.REDIS_MAX_CONNECTIONS = int(os.environ.get('REDIS_MAX_CONNECTIONS', 50)) + self.REDIS_SOCKET_TIMEOUT = int(os.environ.get('REDIS_SOCKET_TIMEOUT', 5)) # Whisper configuration self.WHISPER_MODEL_SIZE = os.environ.get('WHISPER_MODEL_SIZE', 'base') diff --git a/database.py b/database.py new file mode 100644 index 0000000..f77b351 --- /dev/null +++ b/database.py @@ -0,0 +1,268 @@ +# Database models and configuration for Talk2Me application +import os +from datetime import datetime +from typing import Optional, Dict, Any +from flask_sqlalchemy import SQLAlchemy +from sqlalchemy import Index, text +from sqlalchemy.dialects.postgresql import UUID, JSONB +from sqlalchemy.ext.hybrid import hybrid_property +import uuid + +db = SQLAlchemy() + +class Translation(db.Model): + """Store translation history for analytics and caching""" + __tablename__ = 'translations' + + id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4) + session_id = db.Column(db.String(255), nullable=False, index=True) + user_id = db.Column(db.String(255), nullable=True, index=True) + + # Translation data + source_text = db.Column(db.Text, nullable=False) + source_language = db.Column(db.String(10), nullable=False) + target_text = db.Column(db.Text, nullable=False) + target_language = db.Column(db.String(10), nullable=False) + + # Metadata + translation_time_ms = db.Column(db.Integer, nullable=True) + model_used = db.Column(db.String(50), default='gemma3:27b') + confidence_score = db.Column(db.Float, nullable=True) + + # Timestamps + created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + accessed_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + access_count = db.Column(db.Integer, default=1) + + # Client info + ip_address = db.Column(db.String(45), nullable=True) + user_agent = db.Column(db.String(500), nullable=True) + + # Create indexes for better query performance + __table_args__ = ( + Index('idx_translations_languages', 'source_language', 'target_language'), + Index('idx_translations_created_at', 'created_at'), + Index('idx_translations_session_user', 'session_id', 'user_id'), + ) + + def to_dict(self) -> Dict[str, Any]: + """Convert translation to dictionary""" + return { + 'id': str(self.id), + 'session_id': self.session_id, + 'user_id': self.user_id, + 'source_text': self.source_text, + 'source_language': self.source_language, + 'target_text': self.target_text, + 'target_language': self.target_language, + 'translation_time_ms': self.translation_time_ms, + 'model_used': self.model_used, + 'confidence_score': self.confidence_score, + 'created_at': self.created_at.isoformat(), + 'accessed_at': self.accessed_at.isoformat(), + 'access_count': self.access_count + } + + +class Transcription(db.Model): + """Store transcription history""" + __tablename__ = 'transcriptions' + + id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4) + session_id = db.Column(db.String(255), nullable=False, index=True) + user_id = db.Column(db.String(255), nullable=True, index=True) + + # Transcription data + transcribed_text = db.Column(db.Text, nullable=False) + detected_language = db.Column(db.String(10), nullable=True) + audio_duration_seconds = db.Column(db.Float, nullable=True) + + # Metadata + transcription_time_ms = db.Column(db.Integer, nullable=True) + model_used = db.Column(db.String(50), default='whisper-base') + confidence_score = db.Column(db.Float, nullable=True) + + # File info + audio_file_size = db.Column(db.Integer, nullable=True) + audio_format = db.Column(db.String(10), nullable=True) + + # Timestamps + created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + + # Client info + ip_address = db.Column(db.String(45), nullable=True) + user_agent = db.Column(db.String(500), nullable=True) + + __table_args__ = ( + Index('idx_transcriptions_created_at', 'created_at'), + Index('idx_transcriptions_session_user', 'session_id', 'user_id'), + ) + + def to_dict(self) -> Dict[str, Any]: + """Convert transcription to dictionary""" + return { + 'id': str(self.id), + 'session_id': self.session_id, + 'user_id': self.user_id, + 'transcribed_text': self.transcribed_text, + 'detected_language': self.detected_language, + 'audio_duration_seconds': self.audio_duration_seconds, + 'transcription_time_ms': self.transcription_time_ms, + 'model_used': self.model_used, + 'confidence_score': self.confidence_score, + 'audio_file_size': self.audio_file_size, + 'audio_format': self.audio_format, + 'created_at': self.created_at.isoformat() + } + + +class UserPreferences(db.Model): + """Store user preferences and settings""" + __tablename__ = 'user_preferences' + + id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4) + user_id = db.Column(db.String(255), nullable=False, unique=True, index=True) + session_id = db.Column(db.String(255), nullable=True) + + # Preferences + preferred_source_language = db.Column(db.String(10), nullable=True) + preferred_target_language = db.Column(db.String(10), nullable=True) + preferred_voice = db.Column(db.String(50), nullable=True) + speech_speed = db.Column(db.Float, default=1.0) + + # Settings stored as JSONB for flexibility + settings = db.Column(JSONB, default={}) + + # Usage stats + total_translations = db.Column(db.Integer, default=0) + total_transcriptions = db.Column(db.Integer, default=0) + total_tts_requests = db.Column(db.Integer, default=0) + + # Timestamps + created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + updated_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow, onupdate=datetime.utcnow) + last_active_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + + def to_dict(self) -> Dict[str, Any]: + """Convert preferences to dictionary""" + return { + 'id': str(self.id), + 'user_id': self.user_id, + 'preferred_source_language': self.preferred_source_language, + 'preferred_target_language': self.preferred_target_language, + 'preferred_voice': self.preferred_voice, + 'speech_speed': self.speech_speed, + 'settings': self.settings or {}, + 'total_translations': self.total_translations, + 'total_transcriptions': self.total_transcriptions, + 'total_tts_requests': self.total_tts_requests, + 'created_at': self.created_at.isoformat(), + 'updated_at': self.updated_at.isoformat(), + 'last_active_at': self.last_active_at.isoformat() + } + + +class UsageAnalytics(db.Model): + """Store aggregated usage analytics""" + __tablename__ = 'usage_analytics' + + id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4) + + # Time period + date = db.Column(db.Date, nullable=False, index=True) + hour = db.Column(db.Integer, nullable=True) # 0-23, null for daily aggregates + + # Metrics + total_requests = db.Column(db.Integer, default=0) + unique_sessions = db.Column(db.Integer, default=0) + unique_users = db.Column(db.Integer, default=0) + + # Service breakdown + transcriptions = db.Column(db.Integer, default=0) + translations = db.Column(db.Integer, default=0) + tts_requests = db.Column(db.Integer, default=0) + + # Performance metrics + avg_transcription_time_ms = db.Column(db.Float, nullable=True) + avg_translation_time_ms = db.Column(db.Float, nullable=True) + avg_tts_time_ms = db.Column(db.Float, nullable=True) + + # Language stats (stored as JSONB) + language_pairs = db.Column(JSONB, default={}) # {"en-es": 100, "fr-en": 50} + detected_languages = db.Column(JSONB, default={}) # {"en": 150, "es": 100} + + # Error stats + error_count = db.Column(db.Integer, default=0) + error_details = db.Column(JSONB, default={}) + + __table_args__ = ( + Index('idx_analytics_date_hour', 'date', 'hour'), + db.UniqueConstraint('date', 'hour', name='uq_analytics_date_hour'), + ) + + +class ApiKey(db.Model): + """Store API keys for authenticated access""" + __tablename__ = 'api_keys' + + id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4) + key_hash = db.Column(db.String(255), nullable=False, unique=True, index=True) + name = db.Column(db.String(100), nullable=False) + user_id = db.Column(db.String(255), nullable=True) + + # Permissions and limits + is_active = db.Column(db.Boolean, default=True) + rate_limit_per_minute = db.Column(db.Integer, default=60) + rate_limit_per_hour = db.Column(db.Integer, default=1000) + allowed_endpoints = db.Column(JSONB, default=[]) # Empty = all endpoints + + # Usage tracking + total_requests = db.Column(db.Integer, default=0) + last_used_at = db.Column(db.DateTime, nullable=True) + + # Timestamps + created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow) + expires_at = db.Column(db.DateTime, nullable=True) + + @hybrid_property + def is_expired(self): + """Check if API key is expired""" + if self.expires_at is None: + return False + return datetime.utcnow() > self.expires_at + + +def init_db(app): + """Initialize database with app""" + db.init_app(app) + + with app.app_context(): + # Create tables if they don't exist + db.create_all() + + # Create any custom indexes or functions + try: + # Create a function for updating updated_at timestamp + db.session.execute(text(""" + CREATE OR REPLACE FUNCTION update_updated_at_column() + RETURNS TRIGGER AS $$ + BEGIN + NEW.updated_at = NOW(); + RETURN NEW; + END; + $$ language 'plpgsql'; + """)) + + # Create trigger for user_preferences + db.session.execute(text(""" + CREATE TRIGGER update_user_preferences_updated_at + BEFORE UPDATE ON user_preferences + FOR EACH ROW + EXECUTE FUNCTION update_updated_at_column(); + """)) + + db.session.commit() + except Exception as e: + # Triggers might already exist + db.session.rollback() + app.logger.debug(f"Database initialization note: {e}") \ No newline at end of file diff --git a/database_init.py b/database_init.py new file mode 100644 index 0000000..f95156b --- /dev/null +++ b/database_init.py @@ -0,0 +1,135 @@ +#!/usr/bin/env python3 +# Database initialization script +import os +import sys +import logging +from sqlalchemy import create_engine, text +from config import get_config + +logging.basicConfig(level=logging.INFO) +logger = logging.getLogger(__name__) + +def create_database(): + """Create the database if it doesn't exist""" + config = get_config() + db_url = config.DATABASE_URL + + if db_url.startswith('postgresql'): + # Parse database name from URL + parts = db_url.split('/') + db_name = parts[-1].split('?')[0] + base_url = '/'.join(parts[:-1]) + + # Connect to postgres database to create our database + engine = create_engine(f"{base_url}/postgres") + + try: + with engine.connect() as conn: + # Check if database exists + result = conn.execute( + text("SELECT 1 FROM pg_database WHERE datname = :dbname"), + {"dbname": db_name} + ) + exists = result.fetchone() is not None + + if not exists: + # Create database + conn.execute(text(f"CREATE DATABASE {db_name}")) + logger.info(f"Database '{db_name}' created successfully") + else: + logger.info(f"Database '{db_name}' already exists") + + except Exception as e: + logger.error(f"Error creating database: {e}") + return False + finally: + engine.dispose() + + return True + +def check_redis(): + """Check Redis connectivity""" + config = get_config() + + try: + import redis + r = redis.from_url(config.REDIS_URL) + r.ping() + logger.info("Redis connection successful") + return True + except Exception as e: + logger.error(f"Redis connection failed: {e}") + return False + +def init_database_extensions(): + """Initialize PostgreSQL extensions""" + config = get_config() + + if not config.DATABASE_URL.startswith('postgresql'): + return True + + engine = create_engine(config.DATABASE_URL) + + try: + with engine.connect() as conn: + # Enable UUID extension + conn.execute(text("CREATE EXTENSION IF NOT EXISTS \"uuid-ossp\"")) + logger.info("PostgreSQL extensions initialized") + + except Exception as e: + logger.error(f"Error initializing extensions: {e}") + return False + finally: + engine.dispose() + + return True + +def main(): + """Main initialization function""" + logger.info("Starting database initialization...") + + # Create database + if not create_database(): + logger.error("Failed to create database") + sys.exit(1) + + # Initialize extensions + if not init_database_extensions(): + logger.error("Failed to initialize database extensions") + sys.exit(1) + + # Check Redis + if not check_redis(): + logger.warning("Redis not available - caching will be disabled") + + logger.info("Database initialization completed successfully") + + # Create all tables using SQLAlchemy models + logger.info("Creating database tables...") + try: + from flask import Flask + from database import db, init_db + from config import get_config + + # Import all models to ensure they're registered + from auth_models import User, LoginHistory, UserSession, RevokedToken + + # Create Flask app context + app = Flask(__name__) + config = get_config() + app.config.from_mapping(config.__dict__) + + # Initialize database + init_db(app) + + with app.app_context(): + # Create all tables + db.create_all() + logger.info("Database tables created successfully") + + except Exception as e: + logger.error(f"Failed to create database tables: {e}") + sys.exit(1) + +if __name__ == "__main__": + main() \ No newline at end of file diff --git a/init_all_databases.py b/init_all_databases.py new file mode 100755 index 0000000..eceb60d --- /dev/null +++ b/init_all_databases.py @@ -0,0 +1,75 @@ +#!/usr/bin/env python3 +"""Initialize all database tables for Talk2Me""" + +import os +import sys +import subprocess +import logging +from dotenv import load_dotenv + +# Load environment variables +load_dotenv() + +logging.basicConfig(level=logging.INFO) +logger = logging.getLogger(__name__) + +def run_script(script_name): + """Run a Python script and return success status""" + try: + logger.info(f"Running {script_name}...") + result = subprocess.run([sys.executable, script_name], capture_output=True, text=True) + + if result.returncode == 0: + logger.info(f"✓ {script_name} completed successfully") + return True + else: + logger.error(f"✗ {script_name} failed with return code {result.returncode}") + if result.stderr: + logger.error(f"Error output: {result.stderr}") + return False + except Exception as e: + logger.error(f"✗ Failed to run {script_name}: {e}") + return False + +def main(): + """Initialize all databases""" + logger.info("=== Talk2Me Database Initialization ===") + + # Check if DATABASE_URL is set + if not os.environ.get('DATABASE_URL'): + logger.error("DATABASE_URL environment variable not set!") + logger.info("Please set DATABASE_URL in your .env file") + logger.info("Example: DATABASE_URL=postgresql://postgres:password@localhost:5432/talk2me") + return False + + logger.info(f"Using database: {os.environ.get('DATABASE_URL')}") + + scripts = [ + "database_init.py", # Initialize SQLAlchemy models + "init_auth_db.py", # Initialize authentication tables + "init_analytics_db.py" # Initialize analytics tables + ] + + success = True + for script in scripts: + if os.path.exists(script): + if not run_script(script): + success = False + else: + logger.warning(f"Script {script} not found, skipping...") + + if success: + logger.info("\n✅ All database initialization completed successfully!") + logger.info("\nYou can now:") + logger.info("1. Create an admin user by calling POST /api/init-admin-user") + logger.info("2. Or use the admin token to log in and create users") + logger.info("3. Check /api/test-auth to verify authentication is working") + else: + logger.error("\n❌ Some database initialization steps failed!") + logger.info("Please check the errors above and try again") + + return success + +if __name__ == "__main__": + success = main() + sys.exit(0 if success else 1) \ No newline at end of file diff --git a/init_analytics_db.py b/init_analytics_db.py new file mode 100755 index 0000000..00c4d46 --- /dev/null +++ b/init_analytics_db.py @@ -0,0 +1,72 @@ +#!/usr/bin/env python3 +"""Initialize analytics database tables""" + +import os +import sys +import psycopg2 +from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT +import logging +from dotenv import load_dotenv + +# Load environment variables +load_dotenv() + +logging.basicConfig(level=logging.INFO) +logger = logging.getLogger(__name__) + +def init_analytics_db(): + """Initialize analytics database tables""" + + # Get database URL from environment + database_url = os.environ.get('DATABASE_URL', 'postgresql://localhost/talk2me') + + try: + # Connect to PostgreSQL + conn = psycopg2.connect(database_url) + conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT) + cursor = conn.cursor() + + logger.info("Connected to PostgreSQL database") + + # Read SQL file + sql_file = os.path.join(os.path.dirname(__file__), 'migrations', 'create_analytics_tables.sql') + + if not os.path.exists(sql_file): + logger.error(f"SQL file not found: {sql_file}") + return False + + with open(sql_file, 'r') as f: + sql_content = f.read() + + # Execute SQL commands + logger.info("Creating analytics tables...") + cursor.execute(sql_content) + + logger.info("Analytics tables created successfully!") + + # Verify tables were created + cursor.execute(""" + SELECT table_name + FROM information_schema.tables + WHERE table_schema = 'public' + AND table_name IN ( + 'error_logs', 'request_logs', 'translation_logs', + 'transcription_logs', 'tts_logs', 'daily_stats' + ) + """) + + created_tables = [row[0] for row in cursor.fetchall()] + logger.info(f"Created tables: {', '.join(created_tables)}") + + cursor.close() + conn.close() + + return True + + except Exception as e: + logger.error(f"Failed to initialize analytics database: {e}") + return False + +if __name__ == "__main__": + success = init_analytics_db() + sys.exit(0 if success else 1) \ No newline at end of file diff --git a/init_auth_db.py b/init_auth_db.py new file mode 100644 index 0000000..f9d4c32 --- /dev/null +++ b/init_auth_db.py @@ -0,0 +1,149 @@ +#!/usr/bin/env python3 +"""Initialize authentication database and create default admin user""" + +import os +import sys +import getpass +from flask import Flask +from flask_sqlalchemy import SQLAlchemy +from dotenv import load_dotenv + +# Load environment variables +load_dotenv() + +# Add parent directory to path +sys.path.insert(0, os.path.dirname(os.path.abspath(__file__))) + +from config import init_app as init_config +from database import db, init_db +from auth_models import User, bcrypt +from auth import create_user + +def create_admin_user(): + """Create the default admin user""" + # Skip if running non-interactively + if not sys.stdin.isatty(): + print("Running non-interactively, skipping interactive admin creation.") + return True + + print("\n=== Talk2Me Admin User Setup ===\n") + + # Get admin credentials + while True: + email = input("Admin email: ").strip() + if '@' in email and '.' in email: + break + print("Please enter a valid email address.") + + while True: + username = input("Admin username: ").strip() + if len(username) >= 3: + break + print("Username must be at least 3 characters.") + + while True: + password = getpass.getpass("Admin password (min 8 chars): ") + if len(password) >= 8: + password_confirm = getpass.getpass("Confirm password: ") + if password == password_confirm: + break + print("Passwords don't match. Try again.") + else: + print("Password must be at least 8 characters.") + + full_name = input("Full name (optional): ").strip() or None + + # Create admin user + print("\nCreating admin user...") + user, error = create_user( + email=email, + username=username, + password=password, + full_name=full_name, + role='admin', + is_verified=True + ) + + if error: + print(f"Error creating admin: {error}") + return False + + # Set higher rate limits for admin + user.rate_limit_per_minute = 300 + user.rate_limit_per_hour = 5000 + user.rate_limit_per_day = 50000 + + # Add all permissions + user.permissions = ['all'] + + db.session.commit() + + print(f"\n✅ Admin user created successfully!") + print(f" Email: {user.email}") + print(f" Username: {user.username}") + print(f" API Key: {user.api_key}") + print(f"\n📝 Save your API key securely. You can use it to authenticate API requests.") + print(f"\n🔐 Login at: http://localhost:5005/login") + print(f"📊 Admin dashboard: http://localhost:5005/admin/users") + + return True + + +def init_database(): + """Initialize the database with all tables""" + # Create Flask app + app = Flask(__name__) + + # Initialize configuration + init_config(app) + + # Initialize bcrypt + bcrypt.init_app(app) + + # Initialize database + init_db(app) + + with app.app_context(): + print("Creating database tables...") + + # Import all models to ensure they're registered + from auth_models import User, LoginHistory, UserSession, RevokedToken + from database import Translation, Transcription, UserPreferences, UsageAnalytics, ApiKey + + # Create all tables + db.create_all() + print("✅ Database tables created successfully!") + + # Check if admin user already exists + admin_exists = User.query.filter_by(role='admin').first() + + if admin_exists: + print(f"\n⚠️ Admin user already exists: {admin_exists.username}") + # Skip creating new admin if running non-interactively + if not sys.stdin.isatty(): + print("Running non-interactively, skipping admin user creation.") + return + create_new = input("Create another admin user? (y/n): ").lower().strip() + if create_new != 'y': + print("\nExiting without creating new admin.") + return + + # Create admin user + if not create_admin_user(): + print("\n❌ Failed to create admin user.") + sys.exit(1) + + print("\n✨ Authentication system initialized successfully!") + + +if __name__ == '__main__': + try: + init_database() + except KeyboardInterrupt: + print("\n\nSetup cancelled by user.") + sys.exit(0) + except Exception as e: + print(f"\n❌ Error during setup: {str(e)}") + import traceback + traceback.print_exc() + sys.exit(1) \ No newline at end of file diff --git a/memory_manager.py b/memory_manager.py index 9eb125d..257c04a 100644 --- a/memory_manager.py +++ b/memory_manager.py @@ -1,403 +1,238 @@ -# Memory management system to prevent leaks and monitor usage +"""Memory management for Talk2Me application""" + import gc -import os +import logging import psutil import torch -import logging -import threading +import os import time -from typing import Dict, Optional, Callable -from dataclasses import dataclass, field -from datetime import datetime -import weakref -import tempfile -import shutil +from contextlib import contextmanager +from functools import wraps +from dataclasses import dataclass +from typing import Optional, Dict, Any +import threading logger = logging.getLogger(__name__) @dataclass class MemoryStats: - """Current memory statistics""" - timestamp: float = field(default_factory=time.time) - process_memory_mb: float = 0.0 - system_memory_percent: float = 0.0 + """Memory statistics""" + process_memory_mb: float + available_memory_mb: float + memory_percent: float gpu_memory_mb: float = 0.0 gpu_memory_percent: float = 0.0 - temp_files_count: int = 0 - temp_files_size_mb: float = 0.0 - active_sessions: int = 0 - gc_collections: Dict[int, int] = field(default_factory=dict) class MemoryManager: - """ - Comprehensive memory management system to prevent leaks - """ - def __init__(self, app=None, config=None): - self.config = config or {} + """Manage memory usage for the application""" + + def __init__(self, app=None, config: Optional[Dict[str, Any]] = None): self.app = app - self._cleanup_callbacks = [] - self._resource_registry = weakref.WeakValueDictionary() - self._monitoring_thread = None - self._shutdown = False - - # Memory thresholds - self.memory_threshold_mb = self.config.get('memory_threshold_mb', 4096) # 4GB - self.gpu_memory_threshold_mb = self.config.get('gpu_memory_threshold_mb', 2048) # 2GB - self.cleanup_interval = self.config.get('cleanup_interval', 30) # 30 seconds - - # Whisper model reference + self.config = config or {} + self.memory_threshold_mb = self.config.get('memory_threshold_mb', 4096) + self.gpu_memory_threshold_mb = self.config.get('gpu_memory_threshold_mb', 2048) + self.cleanup_interval = self.config.get('cleanup_interval', 30) self.whisper_model = None - self.model_reload_count = 0 - self.last_model_reload = time.time() + self._cleanup_thread = None + self._stop_cleanup = threading.Event() if app: self.init_app(app) def init_app(self, app): - """Initialize memory management for Flask app""" + """Initialize with Flask app""" self.app = app app.memory_manager = self - # Start monitoring thread - self._start_monitoring() + # Start cleanup thread + self._start_cleanup_thread() - # Register cleanup on shutdown - import atexit - atexit.register(self.shutdown) - - logger.info("Memory manager initialized") + logger.info(f"Memory manager initialized with thresholds: " + f"Process={self.memory_threshold_mb}MB, " + f"GPU={self.gpu_memory_threshold_mb}MB") def set_whisper_model(self, model): - """Register the Whisper model for management""" + """Set reference to Whisper model for memory management""" self.whisper_model = model - logger.info("Whisper model registered with memory manager") - def _start_monitoring(self): - """Start background memory monitoring""" - self._monitoring_thread = threading.Thread( - target=self._monitor_memory, - daemon=True - ) - self._monitoring_thread.start() - - def _monitor_memory(self): - """Background thread to monitor and manage memory""" - logger.info("Memory monitoring thread started") + def get_memory_stats(self) -> MemoryStats: + """Get current memory statistics""" + process = psutil.Process() + memory_info = process.memory_info() - while not self._shutdown: + stats = MemoryStats( + process_memory_mb=memory_info.rss / 1024 / 1024, + available_memory_mb=psutil.virtual_memory().available / 1024 / 1024, + memory_percent=process.memory_percent() + ) + + # Check GPU memory if available + if torch.cuda.is_available(): try: - # Collect memory statistics - stats = self.get_memory_stats() - - # Check if we need to free memory - if self._should_cleanup(stats): - logger.warning(f"Memory threshold exceeded - Process: {stats.process_memory_mb:.1f}MB, " - f"GPU: {stats.gpu_memory_mb:.1f}MB") - self.cleanup_memory(aggressive=True) - - # Log stats periodically - if int(time.time()) % 300 == 0: # Every 5 minutes - logger.info(f"Memory stats - Process: {stats.process_memory_mb:.1f}MB, " - f"System: {stats.system_memory_percent:.1f}%, " - f"GPU: {stats.gpu_memory_mb:.1f}MB") - + stats.gpu_memory_mb = torch.cuda.memory_allocated() / 1024 / 1024 + stats.gpu_memory_percent = (torch.cuda.memory_allocated() / + torch.cuda.get_device_properties(0).total_memory * 100) except Exception as e: - logger.error(f"Error in memory monitoring: {e}") - - time.sleep(self.cleanup_interval) + logger.error(f"Error getting GPU memory stats: {e}") + + return stats - def _should_cleanup(self, stats: MemoryStats) -> bool: - """Determine if memory cleanup is needed""" + def check_memory_pressure(self) -> bool: + """Check if system is under memory pressure""" + stats = self.get_memory_stats() + # Check process memory if stats.process_memory_mb > self.memory_threshold_mb: + logger.warning(f"High process memory usage: {stats.process_memory_mb:.1f}MB") return True # Check system memory - if stats.system_memory_percent > 85: + if stats.memory_percent > 80: + logger.warning(f"High system memory usage: {stats.memory_percent:.1f}%") return True # Check GPU memory if stats.gpu_memory_mb > self.gpu_memory_threshold_mb: + logger.warning(f"High GPU memory usage: {stats.gpu_memory_mb:.1f}MB") return True return False - def get_memory_stats(self) -> MemoryStats: - """Get current memory statistics""" - stats = MemoryStats() + def cleanup_memory(self, aggressive: bool = False): + """Clean up memory""" + logger.info("Starting memory cleanup...") - try: - # Process memory - process = psutil.Process() - memory_info = process.memory_info() - stats.process_memory_mb = memory_info.rss / 1024 / 1024 - - # System memory - system_memory = psutil.virtual_memory() - stats.system_memory_percent = system_memory.percent - - # GPU memory if available - if torch.cuda.is_available(): - stats.gpu_memory_mb = torch.cuda.memory_allocated() / 1024 / 1024 - stats.gpu_memory_percent = (torch.cuda.memory_allocated() / - torch.cuda.get_device_properties(0).total_memory * 100) - - # Temp files - temp_dir = self.app.config.get('UPLOAD_FOLDER', tempfile.gettempdir()) - if os.path.exists(temp_dir): - temp_files = list(os.listdir(temp_dir)) - stats.temp_files_count = len(temp_files) - stats.temp_files_size_mb = sum( - os.path.getsize(os.path.join(temp_dir, f)) - for f in temp_files if os.path.isfile(os.path.join(temp_dir, f)) - ) / 1024 / 1024 - - # Session count - if hasattr(self.app, 'session_manager'): - stats.active_sessions = len(self.app.session_manager.sessions) - - # GC stats - gc_stats = gc.get_stats() - for i, stat in enumerate(gc_stats): - if isinstance(stat, dict): - stats.gc_collections[i] = stat.get('collections', 0) - - except Exception as e: - logger.error(f"Error collecting memory stats: {e}") + # Run garbage collection + collected = gc.collect() + logger.info(f"Garbage collector: collected {collected} objects") - return stats - - def cleanup_memory(self, aggressive=False): - """Perform memory cleanup""" - logger.info(f"Starting memory cleanup (aggressive={aggressive})") - freed_mb = 0 - - try: - # 1. Force garbage collection - gc.collect() - if aggressive: - gc.collect(2) # Full collection - - # 2. Clear GPU memory cache - if torch.cuda.is_available(): - before_gpu = torch.cuda.memory_allocated() / 1024 / 1024 - torch.cuda.empty_cache() - torch.cuda.synchronize() - after_gpu = torch.cuda.memory_allocated() / 1024 / 1024 - freed_mb += (before_gpu - after_gpu) - logger.info(f"Freed {before_gpu - after_gpu:.1f}MB GPU memory") - - # 3. Clean old temporary files - if hasattr(self.app, 'config'): - temp_dir = self.app.config.get('UPLOAD_FOLDER') - if temp_dir and os.path.exists(temp_dir): - freed_mb += self._cleanup_temp_files(temp_dir, aggressive) - - # 4. Trigger session cleanup - if hasattr(self.app, 'session_manager'): - self.app.session_manager.cleanup_expired_sessions() - if aggressive: - self.app.session_manager.cleanup_idle_sessions() - - # 5. Run registered cleanup callbacks - for callback in self._cleanup_callbacks: - try: - callback() - except Exception as e: - logger.error(f"Cleanup callback error: {e}") - - # 6. Reload Whisper model if needed (aggressive mode only) - if aggressive and self.whisper_model and torch.cuda.is_available(): - current_gpu_mb = torch.cuda.memory_allocated() / 1024 / 1024 - if current_gpu_mb > self.gpu_memory_threshold_mb * 0.8: - self._reload_whisper_model() - - logger.info(f"Memory cleanup completed - freed approximately {freed_mb:.1f}MB") - - except Exception as e: - logger.error(f"Error during memory cleanup: {e}") - - def _cleanup_temp_files(self, temp_dir: str, aggressive: bool) -> float: - """Clean up temporary files""" - freed_mb = 0 - current_time = time.time() - max_age = 300 if not aggressive else 60 # 5 minutes or 1 minute - - try: - for filename in os.listdir(temp_dir): - filepath = os.path.join(temp_dir, filename) - if os.path.isfile(filepath): - file_age = current_time - os.path.getmtime(filepath) - if file_age > max_age: - file_size = os.path.getsize(filepath) / 1024 / 1024 - try: - os.remove(filepath) - freed_mb += file_size - logger.debug(f"Removed old temp file: {filename}") - except Exception as e: - logger.error(f"Failed to remove {filepath}: {e}") - except Exception as e: - logger.error(f"Error cleaning temp files: {e}") - - return freed_mb - - def _reload_whisper_model(self): - """Reload Whisper model to clear GPU memory fragmentation""" - if not self.whisper_model: - return - - # Don't reload too frequently - if time.time() - self.last_model_reload < 300: # 5 minutes - return - - try: - logger.info("Reloading Whisper model to clear GPU memory") - - # Get model info - import whisper - model_size = getattr(self.whisper_model, 'model_size', 'base') - device = next(self.whisper_model.parameters()).device - - # Clear the old model - del self.whisper_model + # Clear GPU cache if available + if torch.cuda.is_available(): torch.cuda.empty_cache() - gc.collect() + torch.cuda.synchronize() + logger.info("Cleared GPU cache") + + if aggressive: + # Force garbage collection of all generations + for i in range(3): + gc.collect(i) - # Reload model - self.whisper_model = whisper.load_model(model_size, device=device) - self.model_reload_count += 1 - self.last_model_reload = time.time() - - # Update app reference - if hasattr(self.app, 'whisper_model'): - self.app.whisper_model = self.whisper_model - - logger.info(f"Whisper model reloaded successfully (reload #{self.model_reload_count})") - - except Exception as e: - logger.error(f"Failed to reload Whisper model: {e}") + # Clear Whisper model cache if needed + if self.whisper_model and hasattr(self.whisper_model, 'clear_cache'): + self.whisper_model.clear_cache() + logger.info("Cleared Whisper model cache") - def register_cleanup_callback(self, callback: Callable): - """Register a callback to be called during cleanup""" - self._cleanup_callbacks.append(callback) + def _cleanup_worker(self): + """Background cleanup worker""" + while not self._stop_cleanup.wait(self.cleanup_interval): + try: + if self.check_memory_pressure(): + self.cleanup_memory(aggressive=True) + else: + # Light cleanup + gc.collect(0) + + if torch.cuda.is_available(): + torch.cuda.empty_cache() + + except Exception as e: + logger.error(f"Error in memory cleanup worker: {e}") - def register_resource(self, resource, name: str = None): - """Register a resource for tracking""" - if name: - self._resource_registry[name] = resource + def _start_cleanup_thread(self): + """Start background cleanup thread""" + if self._cleanup_thread and self._cleanup_thread.is_alive(): + return + + self._stop_cleanup.clear() + self._cleanup_thread = threading.Thread(target=self._cleanup_worker, daemon=True) + self._cleanup_thread.start() + logger.info("Started memory cleanup thread") - def release_resource(self, name: str): - """Release a tracked resource""" - if name in self._resource_registry: - del self._resource_registry[name] + def stop(self): + """Stop memory manager""" + self._stop_cleanup.set() + if self._cleanup_thread: + self._cleanup_thread.join(timeout=5) - def get_metrics(self) -> Dict: - """Get memory management metrics""" + def get_metrics(self) -> Dict[str, Any]: + """Get memory metrics for monitoring""" stats = self.get_memory_stats() return { - 'memory': { - 'process_mb': round(stats.process_memory_mb, 1), - 'system_percent': round(stats.system_memory_percent, 1), - 'gpu_mb': round(stats.gpu_memory_mb, 1), - 'gpu_percent': round(stats.gpu_memory_percent, 1) - }, - 'temp_files': { - 'count': stats.temp_files_count, - 'size_mb': round(stats.temp_files_size_mb, 1) - }, - 'sessions': { - 'active': stats.active_sessions - }, - 'model': { - 'reload_count': self.model_reload_count, - 'last_reload': datetime.fromtimestamp(self.last_model_reload).isoformat() - }, + 'process_memory_mb': round(stats.process_memory_mb, 2), + 'available_memory_mb': round(stats.available_memory_mb, 2), + 'memory_percent': round(stats.memory_percent, 2), + 'gpu_memory_mb': round(stats.gpu_memory_mb, 2), + 'gpu_memory_percent': round(stats.gpu_memory_percent, 2), 'thresholds': { - 'memory_mb': self.memory_threshold_mb, + 'process_mb': self.memory_threshold_mb, 'gpu_mb': self.gpu_memory_threshold_mb - } + }, + 'under_pressure': self.check_memory_pressure() } - - def shutdown(self): - """Shutdown memory manager""" - logger.info("Shutting down memory manager") - self._shutdown = True - - # Final cleanup - self.cleanup_memory(aggressive=True) - - # Wait for monitoring thread - if self._monitoring_thread: - self._monitoring_thread.join(timeout=5) -# Context manager for audio processing class AudioProcessingContext: - """Context manager to ensure audio resources are cleaned up""" - def __init__(self, memory_manager: MemoryManager, name: str = None): + """Context manager for audio processing with memory management""" + + def __init__(self, memory_manager: MemoryManager, name: str = "audio_processing"): self.memory_manager = memory_manager - self.name = name or f"audio_{int(time.time() * 1000)}" + self.name = name self.temp_files = [] self.start_time = None - self.start_memory = None def __enter__(self): self.start_time = time.time() - if torch.cuda.is_available(): - self.start_memory = torch.cuda.memory_allocated() + + # Check memory before processing + if self.memory_manager and self.memory_manager.check_memory_pressure(): + logger.warning(f"Memory pressure detected before {self.name}") + self.memory_manager.cleanup_memory() + return self def __exit__(self, exc_type, exc_val, exc_tb): - # Clean up temp files - for filepath in self.temp_files: + # Clean up temporary files + for temp_file in self.temp_files: try: - if os.path.exists(filepath): - os.remove(filepath) + if os.path.exists(temp_file): + os.remove(temp_file) except Exception as e: - logger.error(f"Failed to remove temp file {filepath}: {e}") + logger.error(f"Failed to remove temp file {temp_file}: {e}") - # Clear GPU cache if used - if torch.cuda.is_available(): - torch.cuda.empty_cache() - - # Log memory usage - if self.start_memory is not None: - memory_used = torch.cuda.memory_allocated() - self.start_memory - duration = time.time() - self.start_time - logger.debug(f"Audio processing '{self.name}' - Duration: {duration:.2f}s, " - f"GPU memory: {memory_used / 1024 / 1024:.1f}MB") - - # Force garbage collection if there was an error - if exc_type is not None: + # Clean up memory after processing + if self.memory_manager: gc.collect() + if torch.cuda.is_available(): + torch.cuda.empty_cache() + + duration = time.time() - self.start_time + logger.info(f"{self.name} completed in {duration:.2f}s") def add_temp_file(self, filepath: str): - """Register a temporary file for cleanup""" + """Add a temporary file to be cleaned up""" self.temp_files.append(filepath) -# Utility functions def with_memory_management(func): """Decorator to add memory management to functions""" + @wraps(func) def wrapper(*args, **kwargs): # Get memory manager from app context from flask import current_app memory_manager = getattr(current_app, 'memory_manager', None) if memory_manager: - with AudioProcessingContext(memory_manager, name=func.__name__): - return func(*args, **kwargs) - else: - return func(*args, **kwargs) + # Check memory before + if memory_manager.check_memory_pressure(): + logger.warning(f"Memory pressure before {func.__name__}") + memory_manager.cleanup_memory() + + try: + result = func(*args, **kwargs) + return result + finally: + # Light cleanup after + gc.collect(0) + if torch.cuda.is_available(): + torch.cuda.empty_cache() - return wrapper - -def init_memory_management(app, **kwargs): - """Initialize memory management for the application""" - config = { - 'memory_threshold_mb': kwargs.get('memory_threshold_mb', 4096), - 'gpu_memory_threshold_mb': kwargs.get('gpu_memory_threshold_mb', 2048), - 'cleanup_interval': kwargs.get('cleanup_interval', 30) - } - - memory_manager = MemoryManager(app, config) - return memory_manager \ No newline at end of file + return wrapper \ No newline at end of file diff --git a/migrations.py b/migrations.py new file mode 100644 index 0000000..1744abc --- /dev/null +++ b/migrations.py @@ -0,0 +1,135 @@ +# Database migration scripts +import os +import sys +import logging +from flask import Flask +from flask_migrate import Migrate, init, migrate, upgrade +from database import db, init_db +from config import Config + +logging.basicConfig(level=logging.INFO) +logger = logging.getLogger(__name__) + +def create_app(): + """Create Flask app for migrations""" + app = Flask(__name__) + + # Load configuration + config = Config() + app.config.from_object(config) + + # Initialize database + init_db(app) + + return app + +def init_migrations(): + """Initialize migration repository""" + app = create_app() + + with app.app_context(): + # Initialize Flask-Migrate + migrate_instance = Migrate(app, db) + + # Initialize migration repository + try: + init() + logger.info("Migration repository initialized") + except Exception as e: + logger.error(f"Failed to initialize migrations: {e}") + return False + + return True + +def create_migration(message="Auto migration"): + """Create a new migration""" + app = create_app() + + with app.app_context(): + # Initialize Flask-Migrate + migrate_instance = Migrate(app, db) + + try: + migrate(message=message) + logger.info(f"Migration created: {message}") + except Exception as e: + logger.error(f"Failed to create migration: {e}") + return False + + return True + +def run_migrations(): + """Run pending migrations""" + app = create_app() + + with app.app_context(): + # Initialize Flask-Migrate + migrate_instance = Migrate(app, db) + + try: + upgrade() + logger.info("Migrations completed successfully") + except Exception as e: + logger.error(f"Failed to run migrations: {e}") + return False + + return True + +def create_initial_data(): + """Create initial data if needed""" + app = create_app() + + with app.app_context(): + try: + # Add any initial data here + # For example, creating default API keys, admin users, etc. + + db.session.commit() + logger.info("Initial data created") + except Exception as e: + db.session.rollback() + logger.error(f"Failed to create initial data: {e}") + return False + + return True + +if __name__ == "__main__": + if len(sys.argv) < 2: + print("Usage: python migrations.py [init|create|run|seed]") + sys.exit(1) + + command = sys.argv[1] + + if command == "init": + if init_migrations(): + print("Migration repository initialized successfully") + else: + print("Failed to initialize migrations") + sys.exit(1) + + elif command == "create": + message = sys.argv[2] if len(sys.argv) > 2 else "Auto migration" + if create_migration(message): + print(f"Migration created: {message}") + else: + print("Failed to create migration") + sys.exit(1) + + elif command == "run": + if run_migrations(): + print("Migrations completed successfully") + else: + print("Failed to run migrations") + sys.exit(1) + + elif command == "seed": + if create_initial_data(): + print("Initial data created successfully") + else: + print("Failed to create initial data") + sys.exit(1) + + else: + print(f"Unknown command: {command}") + print("Available commands: init, create, run, seed") + sys.exit(1) \ No newline at end of file diff --git a/migrations/add_user_authentication.py b/migrations/add_user_authentication.py new file mode 100644 index 0000000..7c0118a --- /dev/null +++ b/migrations/add_user_authentication.py @@ -0,0 +1,216 @@ +"""Add user authentication tables and update existing models + +This migration: +1. Creates user authentication tables (users, login_history, user_sessions, revoked_tokens) +2. Updates translation and transcription tables to link to users +3. Adds proper foreign key constraints and indexes +""" + +from alembic import op +import sqlalchemy as sa +from sqlalchemy.dialects import postgresql +import uuid + +# revision identifiers +revision = 'add_user_authentication' +down_revision = None +branch_labels = None +depends_on = None + + +def upgrade(): + # Create users table + op.create_table('users', + sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False, default=uuid.uuid4), + sa.Column('email', sa.String(255), nullable=False), + sa.Column('username', sa.String(100), nullable=False), + sa.Column('password_hash', sa.String(255), nullable=False), + sa.Column('full_name', sa.String(255), nullable=True), + sa.Column('avatar_url', sa.String(500), nullable=True), + sa.Column('api_key', sa.String(64), nullable=False), + sa.Column('api_key_created_at', sa.DateTime(), nullable=False), + sa.Column('is_active', sa.Boolean(), nullable=False, default=True), + sa.Column('is_verified', sa.Boolean(), nullable=False, default=False), + sa.Column('is_suspended', sa.Boolean(), nullable=False, default=False), + sa.Column('suspension_reason', sa.Text(), nullable=True), + sa.Column('suspended_at', sa.DateTime(), nullable=True), + sa.Column('suspended_until', sa.DateTime(), nullable=True), + sa.Column('role', sa.String(20), nullable=False, default='user'), + sa.Column('permissions', postgresql.JSONB(astext_type=sa.Text()), nullable=False, default=[]), + sa.Column('rate_limit_per_minute', sa.Integer(), nullable=False, default=30), + sa.Column('rate_limit_per_hour', sa.Integer(), nullable=False, default=500), + sa.Column('rate_limit_per_day', sa.Integer(), nullable=False, default=5000), + sa.Column('total_requests', sa.Integer(), nullable=False, default=0), + sa.Column('total_translations', sa.Integer(), nullable=False, default=0), + sa.Column('total_transcriptions', sa.Integer(), nullable=False, default=0), + sa.Column('total_tts_requests', sa.Integer(), nullable=False, default=0), + sa.Column('created_at', sa.DateTime(), nullable=False), + sa.Column('updated_at', sa.DateTime(), nullable=False), + sa.Column('last_login_at', sa.DateTime(), nullable=True), + sa.Column('last_active_at', sa.DateTime(), nullable=True), + sa.Column('password_changed_at', sa.DateTime(), nullable=False), + sa.Column('failed_login_attempts', sa.Integer(), nullable=False, default=0), + sa.Column('locked_until', sa.DateTime(), nullable=True), + sa.Column('settings', postgresql.JSONB(astext_type=sa.Text()), nullable=False, default={}), + sa.PrimaryKeyConstraint('id'), + sa.UniqueConstraint('email'), + sa.UniqueConstraint('username'), + sa.UniqueConstraint('api_key') + ) + + # Create indexes on users table + op.create_index('idx_users_email', 'users', ['email']) + op.create_index('idx_users_username', 'users', ['username']) + op.create_index('idx_users_api_key', 'users', ['api_key']) + op.create_index('idx_users_email_active', 'users', ['email', 'is_active']) + op.create_index('idx_users_role_active', 'users', ['role', 'is_active']) + op.create_index('idx_users_created_at', 'users', ['created_at']) + + # Create login_history table + op.create_table('login_history', + sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False, default=uuid.uuid4), + sa.Column('user_id', postgresql.UUID(as_uuid=True), nullable=False), + sa.Column('login_at', sa.DateTime(), nullable=False), + sa.Column('logout_at', sa.DateTime(), nullable=True), + sa.Column('login_method', sa.String(20), nullable=False), + sa.Column('success', sa.Boolean(), nullable=False), + sa.Column('failure_reason', sa.String(255), nullable=True), + sa.Column('session_id', sa.String(255), nullable=True), + sa.Column('jwt_jti', sa.String(255), nullable=True), + sa.Column('ip_address', sa.String(45), nullable=False), + sa.Column('user_agent', sa.String(500), nullable=True), + sa.Column('device_info', postgresql.JSONB(astext_type=sa.Text()), nullable=True), + sa.Column('country', sa.String(2), nullable=True), + sa.Column('city', sa.String(100), nullable=True), + sa.Column('is_suspicious', sa.Boolean(), nullable=False, default=False), + sa.Column('security_notes', sa.Text(), nullable=True), + sa.ForeignKeyConstraint(['user_id'], ['users.id'], ondelete='CASCADE'), + sa.PrimaryKeyConstraint('id') + ) + + # Create indexes on login_history + op.create_index('idx_login_history_user_id', 'login_history', ['user_id']) + op.create_index('idx_login_history_user_time', 'login_history', ['user_id', 'login_at']) + op.create_index('idx_login_history_session', 'login_history', ['session_id']) + op.create_index('idx_login_history_jwt_jti', 'login_history', ['jwt_jti']) + op.create_index('idx_login_history_ip', 'login_history', ['ip_address']) + + # Create user_sessions table + op.create_table('user_sessions', + sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False, default=uuid.uuid4), + sa.Column('session_id', sa.String(255), nullable=False), + sa.Column('user_id', postgresql.UUID(as_uuid=True), nullable=False), + sa.Column('access_token_jti', sa.String(255), nullable=True), + sa.Column('refresh_token_jti', sa.String(255), nullable=True), + sa.Column('created_at', sa.DateTime(), nullable=False), + sa.Column('last_active_at', sa.DateTime(), nullable=False), + sa.Column('expires_at', sa.DateTime(), nullable=False), + sa.Column('ip_address', sa.String(45), nullable=False), + sa.Column('user_agent', sa.String(500), nullable=True), + sa.Column('data', postgresql.JSONB(astext_type=sa.Text()), nullable=False, default={}), + sa.ForeignKeyConstraint(['user_id'], ['users.id'], ondelete='CASCADE'), + sa.PrimaryKeyConstraint('id'), + sa.UniqueConstraint('session_id') + ) + + # Create indexes on user_sessions + op.create_index('idx_user_sessions_session_id', 'user_sessions', ['session_id']) + op.create_index('idx_user_sessions_user_id', 'user_sessions', ['user_id']) + op.create_index('idx_user_sessions_user_active', 'user_sessions', ['user_id', 'expires_at']) + op.create_index('idx_user_sessions_token', 'user_sessions', ['access_token_jti']) + + # Create revoked_tokens table + op.create_table('revoked_tokens', + sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False, default=uuid.uuid4), + sa.Column('jti', sa.String(255), nullable=False), + sa.Column('token_type', sa.String(20), nullable=False), + sa.Column('user_id', postgresql.UUID(as_uuid=True), nullable=True), + sa.Column('revoked_at', sa.DateTime(), nullable=False), + sa.Column('expires_at', sa.DateTime(), nullable=False), + sa.Column('reason', sa.String(255), nullable=True), + sa.PrimaryKeyConstraint('id'), + sa.UniqueConstraint('jti') + ) + + # Create indexes on revoked_tokens + op.create_index('idx_revoked_tokens_jti', 'revoked_tokens', ['jti']) + op.create_index('idx_revoked_tokens_user_id', 'revoked_tokens', ['user_id']) + op.create_index('idx_revoked_tokens_expires', 'revoked_tokens', ['expires_at']) + + # Update translations table to add user_id with proper foreign key + # First, check if user_id column exists + try: + op.add_column('translations', sa.Column('user_id', postgresql.UUID(as_uuid=True), nullable=True)) + op.create_foreign_key('fk_translations_user_id', 'translations', 'users', ['user_id'], ['id'], ondelete='SET NULL') + op.create_index('idx_translations_user_id', 'translations', ['user_id']) + except: + pass # Column might already exist + + # Update transcriptions table to add user_id with proper foreign key + try: + op.add_column('transcriptions', sa.Column('user_id', postgresql.UUID(as_uuid=True), nullable=True)) + op.create_foreign_key('fk_transcriptions_user_id', 'transcriptions', 'users', ['user_id'], ['id'], ondelete='SET NULL') + op.create_index('idx_transcriptions_user_id', 'transcriptions', ['user_id']) + except: + pass # Column might already exist + + # Update user_preferences table to add proper foreign key if not exists + try: + op.create_foreign_key('fk_user_preferences_user_id', 'user_preferences', 'users', ['user_id'], ['id'], ondelete='CASCADE') + except: + pass # Foreign key might already exist + + # Update api_keys table to add proper foreign key if not exists + try: + op.add_column('api_keys', sa.Column('user_id_new', postgresql.UUID(as_uuid=True), nullable=True)) + op.create_foreign_key('fk_api_keys_user_id', 'api_keys', 'users', ['user_id_new'], ['id'], ondelete='CASCADE') + except: + pass # Column/FK might already exist + + # Create function for updating updated_at timestamp + op.execute(""" + CREATE OR REPLACE FUNCTION update_updated_at_column() + RETURNS TRIGGER AS $$ + BEGIN + NEW.updated_at = NOW(); + RETURN NEW; + END; + $$ language 'plpgsql'; + """) + + # Create trigger for users table + op.execute(""" + CREATE TRIGGER update_users_updated_at + BEFORE UPDATE ON users + FOR EACH ROW + EXECUTE FUNCTION update_updated_at_column(); + """) + + +def downgrade(): + # Drop triggers + op.execute("DROP TRIGGER IF EXISTS update_users_updated_at ON users") + op.execute("DROP FUNCTION IF EXISTS update_updated_at_column()") + + # Drop foreign keys + try: + op.drop_constraint('fk_translations_user_id', 'translations', type_='foreignkey') + op.drop_constraint('fk_transcriptions_user_id', 'transcriptions', type_='foreignkey') + op.drop_constraint('fk_user_preferences_user_id', 'user_preferences', type_='foreignkey') + op.drop_constraint('fk_api_keys_user_id', 'api_keys', type_='foreignkey') + except: + pass + + # Drop columns + try: + op.drop_column('translations', 'user_id') + op.drop_column('transcriptions', 'user_id') + op.drop_column('api_keys', 'user_id_new') + except: + pass + + # Drop tables + op.drop_table('revoked_tokens') + op.drop_table('user_sessions') + op.drop_table('login_history') + op.drop_table('users') \ No newline at end of file diff --git a/migrations/create_analytics_tables.sql b/migrations/create_analytics_tables.sql new file mode 100644 index 0000000..4f3fb03 --- /dev/null +++ b/migrations/create_analytics_tables.sql @@ -0,0 +1,135 @@ +-- Create analytics tables for Talk2Me admin dashboard + +-- Error logs table +CREATE TABLE IF NOT EXISTS error_logs ( + id SERIAL PRIMARY KEY, + error_type VARCHAR(100) NOT NULL, + error_message TEXT, + endpoint VARCHAR(255), + method VARCHAR(10), + status_code INTEGER, + ip_address INET, + user_agent TEXT, + request_id VARCHAR(100), + stack_trace TEXT, + created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP +); + +-- Create indexes for error_logs +CREATE INDEX IF NOT EXISTS idx_error_logs_created_at ON error_logs(created_at DESC); +CREATE INDEX IF NOT EXISTS idx_error_logs_error_type ON error_logs(error_type); +CREATE INDEX IF NOT EXISTS idx_error_logs_endpoint ON error_logs(endpoint); + +-- Request logs table for detailed analytics +CREATE TABLE IF NOT EXISTS request_logs ( + id SERIAL PRIMARY KEY, + endpoint VARCHAR(255) NOT NULL, + method VARCHAR(10) NOT NULL, + status_code INTEGER, + response_time_ms INTEGER, + ip_address INET, + user_agent TEXT, + request_size_bytes INTEGER, + response_size_bytes INTEGER, + session_id VARCHAR(100), + created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP +); + +-- Create indexes for request_logs +CREATE INDEX IF NOT EXISTS idx_request_logs_created_at ON request_logs(created_at DESC); +CREATE INDEX IF NOT EXISTS idx_request_logs_endpoint ON request_logs(endpoint); +CREATE INDEX IF NOT EXISTS idx_request_logs_session_id ON request_logs(session_id); +CREATE INDEX IF NOT EXISTS idx_request_logs_response_time ON request_logs(response_time_ms); + +-- Translation logs table +CREATE TABLE IF NOT EXISTS translation_logs ( + id SERIAL PRIMARY KEY, + source_language VARCHAR(10), + target_language VARCHAR(10), + text_length INTEGER, + response_time_ms INTEGER, + success BOOLEAN DEFAULT TRUE, + error_message TEXT, + session_id VARCHAR(100), + created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP +); + +-- Create indexes for translation_logs +CREATE INDEX IF NOT EXISTS idx_translation_logs_created_at ON translation_logs(created_at DESC); +CREATE INDEX IF NOT EXISTS idx_translation_logs_languages ON translation_logs(source_language, target_language); + +-- Transcription logs table +CREATE TABLE IF NOT EXISTS transcription_logs ( + id SERIAL PRIMARY KEY, + detected_language VARCHAR(10), + audio_duration_seconds FLOAT, + file_size_bytes INTEGER, + response_time_ms INTEGER, + success BOOLEAN DEFAULT TRUE, + error_message TEXT, + session_id VARCHAR(100), + created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP +); + +-- Create indexes for transcription_logs +CREATE INDEX IF NOT EXISTS idx_transcription_logs_created_at ON transcription_logs(created_at DESC); +CREATE INDEX IF NOT EXISTS idx_transcription_logs_language ON transcription_logs(detected_language); + +-- TTS logs table +CREATE TABLE IF NOT EXISTS tts_logs ( + id SERIAL PRIMARY KEY, + language VARCHAR(10), + text_length INTEGER, + voice VARCHAR(50), + response_time_ms INTEGER, + success BOOLEAN DEFAULT TRUE, + error_message TEXT, + session_id VARCHAR(100), + created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP +); + +-- Create indexes for tts_logs +CREATE INDEX IF NOT EXISTS idx_tts_logs_created_at ON tts_logs(created_at DESC); +CREATE INDEX IF NOT EXISTS idx_tts_logs_language ON tts_logs(language); + +-- Daily aggregated stats table for faster queries +CREATE TABLE IF NOT EXISTS daily_stats ( + date DATE PRIMARY KEY, + total_requests INTEGER DEFAULT 0, + total_translations INTEGER DEFAULT 0, + total_transcriptions INTEGER DEFAULT 0, + total_tts INTEGER DEFAULT 0, + total_errors INTEGER DEFAULT 0, + unique_sessions INTEGER DEFAULT 0, + avg_response_time_ms FLOAT, + created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP, + updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP +); + +-- Create function to update updated_at timestamp +CREATE OR REPLACE FUNCTION update_updated_at_column() +RETURNS TRIGGER AS $$ +BEGIN + NEW.updated_at = CURRENT_TIMESTAMP; + RETURN NEW; +END; +$$ language 'plpgsql'; + +-- Create trigger for daily_stats +DROP TRIGGER IF EXISTS update_daily_stats_updated_at ON daily_stats; +CREATE TRIGGER update_daily_stats_updated_at + BEFORE UPDATE ON daily_stats + FOR EACH ROW + EXECUTE FUNCTION update_updated_at_column(); + +-- Create view for language pair statistics +CREATE OR REPLACE VIEW language_pair_stats AS +SELECT + source_language || ' -> ' || target_language as language_pair, + COUNT(*) as usage_count, + AVG(response_time_ms) as avg_response_time, + MAX(created_at) as last_used +FROM translation_logs +WHERE success = TRUE +GROUP BY source_language, target_language +ORDER BY usage_count DESC; \ No newline at end of file diff --git a/rate_limiter.py b/rate_limiter.py index 96d86bb..5c4295d 100644 --- a/rate_limiter.py +++ b/rate_limiter.py @@ -17,7 +17,7 @@ class RateLimiter: """ def __init__(self): self.buckets = defaultdict(lambda: { - 'tokens': 0, + 'tokens': 5, # Start with some tokens to avoid immediate burst errors 'last_update': time.time(), 'requests': deque(maxlen=1000) # Track last 1000 requests }) @@ -145,8 +145,25 @@ class RateLimiter: return True, None + def is_exempt_path(self, path): + """Check if path is exempt from rate limiting""" + # Handle both path strings and endpoint names + if path.startswith('admin.'): + return True + + exempt_paths = ['/admin', '/health', '/static'] + return any(path.startswith(p) for p in exempt_paths) + def check_rate_limit(self, client_id, endpoint, request_size=0): """Check if request should be allowed""" + # Log what endpoint we're checking + logger.debug(f"Checking rate limit for endpoint: {endpoint}") + + # Skip rate limiting for exempt paths before any processing + if self.is_exempt_path(endpoint): + logger.debug(f"Endpoint {endpoint} is exempt from rate limiting") + return True, None, None + with self.lock: # Check global limits first global_ok, global_msg = self.check_global_limits() @@ -295,6 +312,14 @@ def rate_limit(endpoint=None, def decorator(f): @wraps(f) def decorated_function(*args, **kwargs): + # Skip rate limiting for admin routes - check both path and endpoint + if request.path.startswith('/admin'): + return f(*args, **kwargs) + + # Also check endpoint name + if request.endpoint and request.endpoint.startswith('admin.'): + return f(*args, **kwargs) + # Get client ID client_id = rate_limiter.get_client_id(request) ip = request.remote_addr @@ -403,6 +428,10 @@ ip_filter = IPFilter() def ip_filter_check(): """Middleware to check IP filtering""" + # Skip IP filtering for admin routes + if request.path.startswith('/admin'): + return None + ip = request.remote_addr if not ip_filter.is_allowed(ip): return jsonify({'error': 'Access denied'}), 403 \ No newline at end of file diff --git a/redis_manager.py b/redis_manager.py new file mode 100644 index 0000000..62659c2 --- /dev/null +++ b/redis_manager.py @@ -0,0 +1,446 @@ +# Redis connection and caching management +import redis +import json +import pickle +import logging +from typing import Optional, Any, Dict, List, Union +from datetime import timedelta +from functools import wraps +import hashlib +import time + +logger = logging.getLogger(__name__) + +class RedisManager: + """Manage Redis connections and operations""" + + def __init__(self, app=None, config=None): + self.redis_client = None + self.config = config or {} + self.key_prefix = self.config.get('key_prefix', 'talk2me:') + + if app: + self.init_app(app) + + def init_app(self, app): + """Initialize Redis with Flask app""" + # Get Redis configuration + redis_url = app.config.get('REDIS_URL', 'redis://localhost:6379/0') + + # Parse connection options + decode_responses = app.config.get('REDIS_DECODE_RESPONSES', False) + max_connections = app.config.get('REDIS_MAX_CONNECTIONS', 50) + socket_timeout = app.config.get('REDIS_SOCKET_TIMEOUT', 5) + + # Create connection pool + pool = redis.ConnectionPool.from_url( + redis_url, + max_connections=max_connections, + socket_timeout=socket_timeout, + decode_responses=decode_responses + ) + + self.redis_client = redis.Redis(connection_pool=pool) + + # Test connection + try: + self.redis_client.ping() + logger.info(f"Redis connected successfully to {redis_url}") + except redis.ConnectionError as e: + logger.error(f"Failed to connect to Redis: {e}") + raise + + # Store reference in app + app.redis = self + + def _make_key(self, key: str) -> str: + """Create a prefixed key""" + return f"{self.key_prefix}{key}" + + # Basic operations + def get(self, key: str, default=None) -> Any: + """Get value from Redis""" + try: + value = self.redis_client.get(self._make_key(key)) + if value is None: + return default + + # Try to deserialize JSON first + try: + return json.loads(value) + except (json.JSONDecodeError, TypeError): + # Try pickle for complex objects + try: + return pickle.loads(value) + except: + # Return as string + return value.decode('utf-8') if isinstance(value, bytes) else value + except Exception as e: + logger.error(f"Redis get error for key {key}: {e}") + return default + + def set(self, key: str, value: Any, expire: Optional[int] = None) -> bool: + """Set value in Redis with optional expiration""" + try: + # Serialize value + if isinstance(value, (str, int, float)): + serialized = str(value) + elif isinstance(value, (dict, list)): + serialized = json.dumps(value) + else: + serialized = pickle.dumps(value) + + return self.redis_client.set( + self._make_key(key), + serialized, + ex=expire + ) + except Exception as e: + logger.error(f"Redis set error for key {key}: {e}") + return False + + def delete(self, *keys) -> int: + """Delete one or more keys""" + try: + prefixed_keys = [self._make_key(k) for k in keys] + return self.redis_client.delete(*prefixed_keys) + except Exception as e: + logger.error(f"Redis delete error: {e}") + return 0 + + def exists(self, key: str) -> bool: + """Check if key exists""" + try: + return bool(self.redis_client.exists(self._make_key(key))) + except Exception as e: + logger.error(f"Redis exists error for key {key}: {e}") + return False + + def expire(self, key: str, seconds: int) -> bool: + """Set expiration on a key""" + try: + return bool(self.redis_client.expire(self._make_key(key), seconds)) + except Exception as e: + logger.error(f"Redis expire error for key {key}: {e}") + return False + + # Hash operations for session/rate limiting + def hget(self, name: str, key: str, default=None) -> Any: + """Get value from hash""" + try: + value = self.redis_client.hget(self._make_key(name), key) + if value is None: + return default + + try: + return json.loads(value) + except (json.JSONDecodeError, TypeError): + return value.decode('utf-8') if isinstance(value, bytes) else value + except Exception as e: + logger.error(f"Redis hget error for {name}:{key}: {e}") + return default + + def hset(self, name: str, key: str, value: Any) -> bool: + """Set value in hash""" + try: + if isinstance(value, (dict, list)): + value = json.dumps(value) + return bool(self.redis_client.hset(self._make_key(name), key, value)) + except Exception as e: + logger.error(f"Redis hset error for {name}:{key}: {e}") + return False + + def hgetall(self, name: str) -> Dict[str, Any]: + """Get all values from hash""" + try: + data = self.redis_client.hgetall(self._make_key(name)) + result = {} + for k, v in data.items(): + key = k.decode('utf-8') if isinstance(k, bytes) else k + try: + result[key] = json.loads(v) + except: + result[key] = v.decode('utf-8') if isinstance(v, bytes) else v + return result + except Exception as e: + logger.error(f"Redis hgetall error for {name}: {e}") + return {} + + def hdel(self, name: str, *keys) -> int: + """Delete fields from hash""" + try: + return self.redis_client.hdel(self._make_key(name), *keys) + except Exception as e: + logger.error(f"Redis hdel error for {name}: {e}") + return 0 + + # List operations for queues + def lpush(self, key: str, *values) -> int: + """Push values to the left of list""" + try: + serialized = [] + for v in values: + if isinstance(v, (dict, list)): + serialized.append(json.dumps(v)) + else: + serialized.append(v) + return self.redis_client.lpush(self._make_key(key), *serialized) + except Exception as e: + logger.error(f"Redis lpush error for {key}: {e}") + return 0 + + def rpop(self, key: str, default=None) -> Any: + """Pop value from the right of list""" + try: + value = self.redis_client.rpop(self._make_key(key)) + if value is None: + return default + + try: + return json.loads(value) + except: + return value.decode('utf-8') if isinstance(value, bytes) else value + except Exception as e: + logger.error(f"Redis rpop error for {key}: {e}") + return default + + def llen(self, key: str) -> int: + """Get length of list""" + try: + return self.redis_client.llen(self._make_key(key)) + except Exception as e: + logger.error(f"Redis llen error for {key}: {e}") + return 0 + + # Set operations for unique tracking + def sadd(self, key: str, *values) -> int: + """Add members to set""" + try: + return self.redis_client.sadd(self._make_key(key), *values) + except Exception as e: + logger.error(f"Redis sadd error for {key}: {e}") + return 0 + + def srem(self, key: str, *values) -> int: + """Remove members from set""" + try: + return self.redis_client.srem(self._make_key(key), *values) + except Exception as e: + logger.error(f"Redis srem error for {key}: {e}") + return 0 + + def sismember(self, key: str, value: Any) -> bool: + """Check if value is member of set""" + try: + return bool(self.redis_client.sismember(self._make_key(key), value)) + except Exception as e: + logger.error(f"Redis sismember error for {key}: {e}") + return False + + def scard(self, key: str) -> int: + """Get number of members in set""" + try: + return self.redis_client.scard(self._make_key(key)) + except Exception as e: + logger.error(f"Redis scard error for {key}: {e}") + return 0 + + def smembers(self, key: str) -> set: + """Get all members of set""" + try: + members = self.redis_client.smembers(self._make_key(key)) + return {m.decode('utf-8') if isinstance(m, bytes) else m for m in members} + except Exception as e: + logger.error(f"Redis smembers error for {key}: {e}") + return set() + + # Atomic counters + def incr(self, key: str, amount: int = 1) -> int: + """Increment counter""" + try: + return self.redis_client.incr(self._make_key(key), amount) + except Exception as e: + logger.error(f"Redis incr error for {key}: {e}") + return 0 + + def decr(self, key: str, amount: int = 1) -> int: + """Decrement counter""" + try: + return self.redis_client.decr(self._make_key(key), amount) + except Exception as e: + logger.error(f"Redis decr error for {key}: {e}") + return 0 + + # Transaction support + def pipeline(self): + """Create a pipeline for atomic operations""" + return self.redis_client.pipeline() + + # Pub/Sub support + def publish(self, channel: str, message: Any) -> int: + """Publish message to channel""" + try: + if isinstance(message, (dict, list)): + message = json.dumps(message) + return self.redis_client.publish(self._make_key(channel), message) + except Exception as e: + logger.error(f"Redis publish error for {channel}: {e}") + return 0 + + def subscribe(self, *channels): + """Subscribe to channels""" + pubsub = self.redis_client.pubsub() + prefixed_channels = [self._make_key(c) for c in channels] + pubsub.subscribe(*prefixed_channels) + return pubsub + + # Cache helpers + def cache_translation(self, source_text: str, source_lang: str, + target_lang: str, translation: str, + expire_hours: int = 24) -> bool: + """Cache a translation""" + key = self._translation_key(source_text, source_lang, target_lang) + data = { + 'translation': translation, + 'timestamp': time.time(), + 'hits': 0 + } + return self.set(key, data, expire=expire_hours * 3600) + + def get_cached_translation(self, source_text: str, source_lang: str, + target_lang: str) -> Optional[str]: + """Get cached translation and increment hit counter""" + key = self._translation_key(source_text, source_lang, target_lang) + data = self.get(key) + + if data and isinstance(data, dict): + # Increment hit counter + data['hits'] = data.get('hits', 0) + 1 + self.set(key, data) + return data.get('translation') + + return None + + def _translation_key(self, text: str, source_lang: str, target_lang: str) -> str: + """Generate cache key for translation""" + # Create a hash of the text to handle long texts + text_hash = hashlib.md5(text.encode()).hexdigest() + return f"translation:{source_lang}:{target_lang}:{text_hash}" + + # Session management + def save_session(self, session_id: str, data: Dict[str, Any], + expire_seconds: int = 3600) -> bool: + """Save session data""" + key = f"session:{session_id}" + return self.set(key, data, expire=expire_seconds) + + def get_session(self, session_id: str) -> Optional[Dict[str, Any]]: + """Get session data""" + key = f"session:{session_id}" + return self.get(key) + + def delete_session(self, session_id: str) -> bool: + """Delete session data""" + key = f"session:{session_id}" + return bool(self.delete(key)) + + def extend_session(self, session_id: str, expire_seconds: int = 3600) -> bool: + """Extend session expiration""" + key = f"session:{session_id}" + return self.expire(key, expire_seconds) + + # Rate limiting + def check_rate_limit(self, identifier: str, limit: int, + window_seconds: int) -> tuple[bool, int]: + """Check rate limit using sliding window""" + key = f"rate_limit:{identifier}:{window_seconds}" + now = time.time() + window_start = now - window_seconds + + pipe = self.pipeline() + + # Remove old entries + pipe.zremrangebyscore(self._make_key(key), 0, window_start) + + # Count current entries + pipe.zcard(self._make_key(key)) + + # Add current request + pipe.zadd(self._make_key(key), {str(now): now}) + + # Set expiration + pipe.expire(self._make_key(key), window_seconds + 1) + + results = pipe.execute() + current_count = results[1] + + if current_count >= limit: + return False, limit - current_count + + return True, limit - current_count - 1 + + # Cleanup + def cleanup_expired_keys(self, pattern: str = "*") -> int: + """Clean up expired keys matching pattern""" + try: + cursor = 0 + deleted = 0 + + while True: + cursor, keys = self.redis_client.scan( + cursor, + match=self._make_key(pattern), + count=100 + ) + + for key in keys: + ttl = self.redis_client.ttl(key) + if ttl == -2: # Key doesn't exist + continue + elif ttl == -1: # Key exists but no TTL + # Set a default TTL of 24 hours for keys without expiration + self.redis_client.expire(key, 86400) + + if cursor == 0: + break + + return deleted + except Exception as e: + logger.error(f"Redis cleanup error: {e}") + return 0 + + +# Cache decorator +def redis_cache(expire_seconds: int = 300, key_prefix: str = ""): + """Decorator to cache function results in Redis""" + def decorator(func): + @wraps(func) + def wrapper(*args, **kwargs): + # Get Redis instance from app context + from flask import current_app + redis_manager = getattr(current_app, 'redis', None) + + if not redis_manager: + # No Redis, execute function normally + return func(*args, **kwargs) + + # Generate cache key + cache_key = f"{key_prefix}:{func.__name__}:" + cache_key += hashlib.md5( + f"{args}:{kwargs}".encode() + ).hexdigest() + + # Try to get from cache + cached = redis_manager.get(cache_key) + if cached is not None: + logger.debug(f"Cache hit for {func.__name__}") + return cached + + # Execute function and cache result + result = func(*args, **kwargs) + redis_manager.set(cache_key, result, expire=expire_seconds) + + return result + + return wrapper + return decorator \ No newline at end of file diff --git a/redis_rate_limiter.py b/redis_rate_limiter.py new file mode 100644 index 0000000..6f5c0ca --- /dev/null +++ b/redis_rate_limiter.py @@ -0,0 +1,365 @@ +# Redis-based rate limiting implementation +import time +import logging +from functools import wraps +from flask import request, jsonify, g +import hashlib +from typing import Optional, Dict, Tuple + +logger = logging.getLogger(__name__) + +class RedisRateLimiter: + """Token bucket rate limiter using Redis for distributed rate limiting""" + + def __init__(self, redis_manager): + self.redis = redis_manager + + # Default limits (can be overridden per endpoint) + self.default_limits = { + 'requests_per_minute': 30, + 'requests_per_hour': 500, + 'burst_size': 10, + 'token_refresh_rate': 0.5 # tokens per second + } + + # Endpoint-specific limits + self.endpoint_limits = { + '/transcribe': { + 'requests_per_minute': 10, + 'requests_per_hour': 100, + 'burst_size': 3, + 'token_refresh_rate': 0.167, + 'max_request_size': 10 * 1024 * 1024 # 10MB + }, + '/translate': { + 'requests_per_minute': 20, + 'requests_per_hour': 300, + 'burst_size': 5, + 'token_refresh_rate': 0.333, + 'max_request_size': 100 * 1024 # 100KB + }, + '/translate/stream': { + 'requests_per_minute': 10, + 'requests_per_hour': 150, + 'burst_size': 3, + 'token_refresh_rate': 0.167, + 'max_request_size': 100 * 1024 # 100KB + }, + '/speak': { + 'requests_per_minute': 15, + 'requests_per_hour': 200, + 'burst_size': 3, + 'token_refresh_rate': 0.25, + 'max_request_size': 50 * 1024 # 50KB + } + } + + # Global limits + self.global_limits = { + 'total_requests_per_minute': 1000, + 'total_requests_per_hour': 10000, + 'concurrent_requests': 50 + } + + def get_client_id(self, req) -> str: + """Get unique client identifier""" + ip = req.remote_addr or 'unknown' + user_agent = req.headers.get('User-Agent', '') + + # Handle proxied requests + forwarded_for = req.headers.get('X-Forwarded-For') + if forwarded_for: + ip = forwarded_for.split(',')[0].strip() + + # Create unique identifier + identifier = f"{ip}:{user_agent}" + return hashlib.md5(identifier.encode()).hexdigest() + + def get_limits(self, endpoint: str) -> Dict: + """Get rate limits for endpoint""" + return self.endpoint_limits.get(endpoint, self.default_limits) + + def is_ip_blocked(self, ip: str) -> bool: + """Check if IP is blocked""" + # Check permanent blocks + if self.redis.sismember('blocked_ips:permanent', ip): + return True + + # Check temporary blocks + block_key = f'blocked_ip:{ip}' + if self.redis.exists(block_key): + return True + + return False + + def block_ip_temporarily(self, ip: str, duration: int = 3600): + """Block IP temporarily""" + block_key = f'blocked_ip:{ip}' + self.redis.set(block_key, 1, expire=duration) + logger.warning(f"IP {ip} temporarily blocked for {duration} seconds") + + def check_global_limits(self) -> Tuple[bool, Optional[str]]: + """Check global rate limits""" + now = time.time() + + # Check requests per minute + minute_key = 'global:requests:minute' + allowed, remaining = self.redis.check_rate_limit( + minute_key, + self.global_limits['total_requests_per_minute'], + 60 + ) + if not allowed: + return False, "Global rate limit exceeded (per minute)" + + # Check requests per hour + hour_key = 'global:requests:hour' + allowed, remaining = self.redis.check_rate_limit( + hour_key, + self.global_limits['total_requests_per_hour'], + 3600 + ) + if not allowed: + return False, "Global rate limit exceeded (per hour)" + + # Check concurrent requests + concurrent_key = 'global:concurrent' + current_concurrent = self.redis.get(concurrent_key, 0) + if current_concurrent >= self.global_limits['concurrent_requests']: + return False, "Too many concurrent requests" + + return True, None + + def check_rate_limit(self, client_id: str, endpoint: str, + request_size: int = 0) -> Tuple[bool, Optional[str], Optional[Dict]]: + """Check if request should be allowed""" + # Check global limits first + global_ok, global_msg = self.check_global_limits() + if not global_ok: + return False, global_msg, None + + # Get limits for endpoint + limits = self.get_limits(endpoint) + + # Check request size if applicable + if request_size > 0 and 'max_request_size' in limits: + if request_size > limits['max_request_size']: + return False, "Request too large", None + + # Token bucket implementation using Redis + bucket_key = f'bucket:{client_id}:{endpoint}' + now = time.time() + + # Get current bucket state + bucket_data = self.redis.hgetall(bucket_key) + + # Initialize bucket if empty + if not bucket_data: + bucket_data = { + 'tokens': limits['burst_size'], + 'last_update': now + } + else: + # Update tokens based on time passed + last_update = float(bucket_data.get('last_update', now)) + time_passed = now - last_update + new_tokens = time_passed * limits['token_refresh_rate'] + + current_tokens = float(bucket_data.get('tokens', 0)) + bucket_data['tokens'] = min( + limits['burst_size'], + current_tokens + new_tokens + ) + bucket_data['last_update'] = now + + # Check sliding window limits + minute_allowed, minute_remaining = self.redis.check_rate_limit( + f'window:{client_id}:{endpoint}:minute', + limits['requests_per_minute'], + 60 + ) + + if not minute_allowed: + return False, "Rate limit exceeded (per minute)", { + 'retry_after': 60, + 'limit': limits['requests_per_minute'], + 'remaining': 0, + 'reset': int(now + 60) + } + + hour_allowed, hour_remaining = self.redis.check_rate_limit( + f'window:{client_id}:{endpoint}:hour', + limits['requests_per_hour'], + 3600 + ) + + if not hour_allowed: + return False, "Rate limit exceeded (per hour)", { + 'retry_after': 3600, + 'limit': limits['requests_per_hour'], + 'remaining': 0, + 'reset': int(now + 3600) + } + + # Check token bucket + if float(bucket_data['tokens']) < 1: + retry_after = int(1 / limits['token_refresh_rate']) + return False, "Rate limit exceeded (burst)", { + 'retry_after': retry_after, + 'limit': limits['burst_size'], + 'remaining': 0, + 'reset': int(now + retry_after) + } + + # Request allowed - update bucket + bucket_data['tokens'] = float(bucket_data['tokens']) - 1 + + # Save bucket state + self.redis.hset(bucket_key, 'tokens', bucket_data['tokens']) + self.redis.hset(bucket_key, 'last_update', bucket_data['last_update']) + self.redis.expire(bucket_key, 86400) # Expire after 24 hours + + return True, None, { + 'limit': limits['requests_per_minute'], + 'remaining': minute_remaining, + 'reset': int(now + 60) + } + + def increment_concurrent(self): + """Increment concurrent request counter""" + self.redis.incr('global:concurrent') + + def decrement_concurrent(self): + """Decrement concurrent request counter""" + self.redis.decr('global:concurrent') + + def get_client_stats(self, client_id: str) -> Optional[Dict]: + """Get statistics for a client""" + stats = { + 'requests_last_minute': 0, + 'requests_last_hour': 0, + 'buckets': {} + } + + # Get request counts from all endpoints + for endpoint in self.endpoint_limits.keys(): + minute_key = f'window:{client_id}:{endpoint}:minute' + hour_key = f'window:{client_id}:{endpoint}:hour' + + # This is approximate since we're using sliding windows + minute_count = self.redis.scard(minute_key) + hour_count = self.redis.scard(hour_key) + + stats['requests_last_minute'] += minute_count + stats['requests_last_hour'] += hour_count + + # Get bucket info + bucket_key = f'bucket:{client_id}:{endpoint}' + bucket_data = self.redis.hgetall(bucket_key) + if bucket_data: + stats['buckets'][endpoint] = { + 'tokens': float(bucket_data.get('tokens', 0)), + 'last_update': float(bucket_data.get('last_update', 0)) + } + + return stats + + +def rate_limit(endpoint=None, + requests_per_minute=None, + requests_per_hour=None, + burst_size=None, + check_size=False): + """ + Rate limiting decorator for Flask routes using Redis + """ + def decorator(f): + @wraps(f) + def decorated_function(*args, **kwargs): + # Get Redis rate limiter from app + from flask import current_app + + if not hasattr(current_app, 'redis_rate_limiter'): + # No Redis rate limiter, execute function normally + return f(*args, **kwargs) + + rate_limiter = current_app.redis_rate_limiter + + # Get client ID + client_id = rate_limiter.get_client_id(request) + ip = request.remote_addr + + # Check if IP is blocked + if rate_limiter.is_ip_blocked(ip): + return jsonify({ + 'error': 'IP temporarily blocked due to excessive requests' + }), 429 + + # Get endpoint + endpoint_path = endpoint or request.endpoint + + # Override default limits if specified + if any([requests_per_minute, requests_per_hour, burst_size]): + limits = rate_limiter.get_limits(endpoint_path).copy() + if requests_per_minute: + limits['requests_per_minute'] = requests_per_minute + if requests_per_hour: + limits['requests_per_hour'] = requests_per_hour + if burst_size: + limits['burst_size'] = burst_size + rate_limiter.endpoint_limits[endpoint_path] = limits + + # Check request size if needed + request_size = 0 + if check_size: + request_size = request.content_length or 0 + + # Check rate limit + allowed, message, headers = rate_limiter.check_rate_limit( + client_id, endpoint_path, request_size + ) + + if not allowed: + # Log excessive requests + logger.warning(f"Rate limit exceeded for {client_id} on {endpoint_path}: {message}") + + # Check if we should temporarily block this IP + stats = rate_limiter.get_client_stats(client_id) + if stats and stats['requests_last_minute'] > 100: + rate_limiter.block_ip_temporarily(ip, 3600) # 1 hour block + + response = jsonify({ + 'error': message, + 'retry_after': headers.get('retry_after') if headers else 60 + }) + response.status_code = 429 + + # Add rate limit headers + if headers: + response.headers['X-RateLimit-Limit'] = str(headers['limit']) + response.headers['X-RateLimit-Remaining'] = str(headers['remaining']) + response.headers['X-RateLimit-Reset'] = str(headers['reset']) + response.headers['Retry-After'] = str(headers['retry_after']) + + return response + + # Track concurrent requests + rate_limiter.increment_concurrent() + + try: + # Add rate limit info to response + g.rate_limit_headers = headers + response = f(*args, **kwargs) + + # Add headers to successful response + if headers and hasattr(response, 'headers'): + response.headers['X-RateLimit-Limit'] = str(headers['limit']) + response.headers['X-RateLimit-Remaining'] = str(headers['remaining']) + response.headers['X-RateLimit-Reset'] = str(headers['reset']) + + return response + finally: + rate_limiter.decrement_concurrent() + + return decorated_function + return decorator \ No newline at end of file diff --git a/redis_session_manager.py b/redis_session_manager.py new file mode 100644 index 0000000..8867147 --- /dev/null +++ b/redis_session_manager.py @@ -0,0 +1,389 @@ +# Redis-based session management system +import time +import uuid +import logging +from datetime import datetime +from typing import Dict, Any, Optional, List +from dataclasses import dataclass, asdict +from flask import session, request, g + +logger = logging.getLogger(__name__) + +@dataclass +class SessionInfo: + """Session information stored in Redis""" + session_id: str + user_id: Optional[str] = None + ip_address: Optional[str] = None + user_agent: Optional[str] = None + created_at: float = None + last_activity: float = None + request_count: int = 0 + resource_count: int = 0 + total_bytes_used: int = 0 + metadata: Dict[str, Any] = None + + def __post_init__(self): + if self.created_at is None: + self.created_at = time.time() + if self.last_activity is None: + self.last_activity = time.time() + if self.metadata is None: + self.metadata = {} + + +class RedisSessionManager: + """ + Session management using Redis for distributed sessions + """ + def __init__(self, redis_manager, config: Dict[str, Any] = None): + self.redis = redis_manager + self.config = config or {} + + # Configuration + self.max_session_duration = self.config.get('max_session_duration', 3600) # 1 hour + self.max_idle_time = self.config.get('max_idle_time', 900) # 15 minutes + self.max_resources_per_session = self.config.get('max_resources_per_session', 100) + self.max_bytes_per_session = self.config.get('max_bytes_per_session', 100 * 1024 * 1024) # 100MB + + logger.info("Redis session manager initialized") + + def create_session(self, session_id: str = None, user_id: str = None, + ip_address: str = None, user_agent: str = None) -> SessionInfo: + """Create a new session""" + if not session_id: + session_id = str(uuid.uuid4()) + + # Check if session already exists + existing = self.get_session(session_id) + if existing: + logger.warning(f"Session {session_id} already exists") + return existing + + session_info = SessionInfo( + session_id=session_id, + user_id=user_id, + ip_address=ip_address, + user_agent=user_agent + ) + + # Save to Redis + self._save_session(session_info) + + # Add to active sessions set + self.redis.sadd('active_sessions', session_id) + + # Update stats + self.redis.incr('stats:sessions:created') + + logger.info(f"Created session {session_id}") + return session_info + + def get_session(self, session_id: str) -> Optional[SessionInfo]: + """Get a session by ID""" + data = self.redis.get(f'session:{session_id}') + if not data: + return None + + # Update last activity + session_info = SessionInfo(**data) + session_info.last_activity = time.time() + self._save_session(session_info) + + return session_info + + def update_session_activity(self, session_id: str): + """Update session last activity time""" + session_info = self.get_session(session_id) + if session_info: + session_info.last_activity = time.time() + session_info.request_count += 1 + self._save_session(session_info) + + def add_resource(self, session_id: str, resource_type: str, + resource_id: str = None, path: str = None, + size_bytes: int = 0, metadata: Dict[str, Any] = None) -> bool: + """Add a resource to a session""" + session_info = self.get_session(session_id) + if not session_info: + logger.warning(f"Session {session_id} not found") + return False + + # Check limits + if session_info.resource_count >= self.max_resources_per_session: + logger.warning(f"Session {session_id} reached resource limit") + # Clean up oldest resources + self._cleanup_oldest_resources(session_id, 1) + + if session_info.total_bytes_used + size_bytes > self.max_bytes_per_session: + logger.warning(f"Session {session_id} reached size limit") + bytes_to_free = (session_info.total_bytes_used + size_bytes) - self.max_bytes_per_session + self._cleanup_resources_by_size(session_id, bytes_to_free) + + # Generate resource ID if not provided + if not resource_id: + resource_id = str(uuid.uuid4()) + + # Store resource info + resource_key = f'session:{session_id}:resource:{resource_id}' + resource_data = { + 'resource_id': resource_id, + 'resource_type': resource_type, + 'path': path, + 'size_bytes': size_bytes, + 'created_at': time.time(), + 'metadata': metadata or {} + } + + self.redis.set(resource_key, resource_data, expire=self.max_session_duration) + + # Add to session's resource set + self.redis.sadd(f'session:{session_id}:resources', resource_id) + + # Update session info + session_info.resource_count += 1 + session_info.total_bytes_used += size_bytes + self._save_session(session_info) + + # Update global stats + self.redis.incr('stats:resources:active') + self.redis.incr('stats:bytes:active', size_bytes) + + logger.debug(f"Added {resource_type} resource {resource_id} to session {session_id}") + return True + + def remove_resource(self, session_id: str, resource_id: str) -> bool: + """Remove a resource from a session""" + # Get resource info + resource_key = f'session:{session_id}:resource:{resource_id}' + resource_data = self.redis.get(resource_key) + if not resource_data: + return False + + # Clean up the actual resource (file, etc.) + self._cleanup_resource(resource_data) + + # Remove from Redis + self.redis.delete(resource_key) + self.redis.srem(f'session:{session_id}:resources', resource_id) + + # Update session info + session_info = self.get_session(session_id) + if session_info: + session_info.resource_count -= 1 + session_info.total_bytes_used -= resource_data.get('size_bytes', 0) + self._save_session(session_info) + + # Update stats + self.redis.decr('stats:resources:active') + self.redis.decr('stats:bytes:active', resource_data.get('size_bytes', 0)) + self.redis.incr('stats:resources:cleaned') + self.redis.incr('stats:bytes:cleaned', resource_data.get('size_bytes', 0)) + + logger.debug(f"Removed resource {resource_id} from session {session_id}") + return True + + def cleanup_session(self, session_id: str) -> bool: + """Clean up a session and all its resources""" + session_info = self.get_session(session_id) + if not session_info: + return False + + # Get all resources + resource_ids = self.redis.smembers(f'session:{session_id}:resources') + + # Clean up each resource + for resource_id in resource_ids: + self.remove_resource(session_id, resource_id) + + # Remove session data + self.redis.delete(f'session:{session_id}') + self.redis.delete(f'session:{session_id}:resources') + self.redis.srem('active_sessions', session_id) + + # Update stats + self.redis.incr('stats:sessions:cleaned') + + logger.info(f"Cleaned up session {session_id}") + return True + + def cleanup_expired_sessions(self): + """Clean up sessions that have exceeded max duration""" + now = time.time() + active_sessions = self.redis.smembers('active_sessions') + + for session_id in active_sessions: + session_info = self.get_session(session_id) + if session_info and (now - session_info.created_at > self.max_session_duration): + logger.info(f"Cleaning up expired session {session_id}") + self.cleanup_session(session_id) + + def cleanup_idle_sessions(self): + """Clean up sessions that have been idle too long""" + now = time.time() + active_sessions = self.redis.smembers('active_sessions') + + for session_id in active_sessions: + session_info = self.get_session(session_id) + if session_info and (now - session_info.last_activity > self.max_idle_time): + logger.info(f"Cleaning up idle session {session_id}") + self.cleanup_session(session_id) + + def get_session_info(self, session_id: str) -> Optional[Dict[str, Any]]: + """Get detailed information about a session""" + session_info = self.get_session(session_id) + if not session_info: + return None + + # Get resources + resource_ids = self.redis.smembers(f'session:{session_id}:resources') + resources = [] + + for resource_id in resource_ids: + resource_data = self.redis.get(f'session:{session_id}:resource:{resource_id}') + if resource_data: + resources.append({ + 'resource_id': resource_data['resource_id'], + 'resource_type': resource_data['resource_type'], + 'size_bytes': resource_data['size_bytes'], + 'created_at': datetime.fromtimestamp(resource_data['created_at']).isoformat() + }) + + return { + 'session_id': session_info.session_id, + 'user_id': session_info.user_id, + 'ip_address': session_info.ip_address, + 'created_at': datetime.fromtimestamp(session_info.created_at).isoformat(), + 'last_activity': datetime.fromtimestamp(session_info.last_activity).isoformat(), + 'duration_seconds': int(time.time() - session_info.created_at), + 'idle_seconds': int(time.time() - session_info.last_activity), + 'request_count': session_info.request_count, + 'resource_count': session_info.resource_count, + 'total_bytes_used': session_info.total_bytes_used, + 'resources': resources + } + + def get_all_sessions_info(self) -> List[Dict[str, Any]]: + """Get information about all active sessions""" + active_sessions = self.redis.smembers('active_sessions') + return [ + self.get_session_info(session_id) + for session_id in active_sessions + if self.get_session_info(session_id) + ] + + def get_stats(self) -> Dict[str, Any]: + """Get session manager statistics""" + active_sessions = self.redis.scard('active_sessions') + + return { + 'active_sessions': active_sessions, + 'total_sessions_created': self.redis.get('stats:sessions:created', 0), + 'total_sessions_cleaned': self.redis.get('stats:sessions:cleaned', 0), + 'active_resources': self.redis.get('stats:resources:active', 0), + 'total_resources_cleaned': self.redis.get('stats:resources:cleaned', 0), + 'active_bytes': self.redis.get('stats:bytes:active', 0), + 'total_bytes_cleaned': self.redis.get('stats:bytes:cleaned', 0) + } + + def _save_session(self, session_info: SessionInfo): + """Save session info to Redis""" + key = f'session:{session_info.session_id}' + data = asdict(session_info) + self.redis.set(key, data, expire=self.max_session_duration) + + def _cleanup_resource(self, resource_data: Dict[str, Any]): + """Clean up a resource (e.g., delete file)""" + import os + + if resource_data.get('resource_type') in ['audio_file', 'temp_file']: + path = resource_data.get('path') + if path and os.path.exists(path): + try: + os.remove(path) + logger.debug(f"Removed file {path}") + except Exception as e: + logger.error(f"Failed to remove file {path}: {e}") + + def _cleanup_oldest_resources(self, session_id: str, count: int): + """Clean up oldest resources from a session""" + resource_ids = list(self.redis.smembers(f'session:{session_id}:resources')) + + # Get resource creation times + resources_with_time = [] + for resource_id in resource_ids: + resource_data = self.redis.get(f'session:{session_id}:resource:{resource_id}') + if resource_data: + resources_with_time.append((resource_id, resource_data.get('created_at', 0))) + + # Sort by creation time and remove oldest + resources_with_time.sort(key=lambda x: x[1]) + for resource_id, _ in resources_with_time[:count]: + self.remove_resource(session_id, resource_id) + + def _cleanup_resources_by_size(self, session_id: str, bytes_to_free: int): + """Clean up resources to free up space""" + resource_ids = list(self.redis.smembers(f'session:{session_id}:resources')) + + # Get resource sizes + resources_with_size = [] + for resource_id in resource_ids: + resource_data = self.redis.get(f'session:{session_id}:resource:{resource_id}') + if resource_data: + resources_with_size.append((resource_id, resource_data.get('size_bytes', 0))) + + # Sort by size (largest first) and remove until we've freed enough + resources_with_size.sort(key=lambda x: x[1], reverse=True) + freed_bytes = 0 + + for resource_id, size in resources_with_size: + if freed_bytes >= bytes_to_free: + break + freed_bytes += size + self.remove_resource(session_id, resource_id) + + +def init_app(app): + """Initialize Redis session management for Flask app""" + # Get Redis manager + redis_manager = getattr(app, 'redis', None) + if not redis_manager: + raise RuntimeError("Redis manager not initialized. Call init_redis() first.") + + config = { + 'max_session_duration': app.config.get('MAX_SESSION_DURATION', 3600), + 'max_idle_time': app.config.get('MAX_SESSION_IDLE_TIME', 900), + 'max_resources_per_session': app.config.get('MAX_RESOURCES_PER_SESSION', 100), + 'max_bytes_per_session': app.config.get('MAX_BYTES_PER_SESSION', 100 * 1024 * 1024) + } + + manager = RedisSessionManager(redis_manager, config) + app.redis_session_manager = manager + + # Add before_request handler + @app.before_request + def before_request_session(): + # Get or create session + session_id = session.get('session_id') + if not session_id: + session_id = str(uuid.uuid4()) + session['session_id'] = session_id + session.permanent = True + + # Get session from manager + user_session = manager.get_session(session_id) + if not user_session: + user_session = manager.create_session( + session_id=session_id, + ip_address=request.remote_addr, + user_agent=request.headers.get('User-Agent') + ) + + # Update activity + manager.update_session_activity(session_id) + + # Store in g for request access + g.user_session = user_session + g.session_manager = manager + + logger.info("Redis session management initialized") \ No newline at end of file diff --git a/requirements.txt b/requirements.txt index 6a0f3c8..5cff549 100644 --- a/requirements.txt +++ b/requirements.txt @@ -1,5 +1,10 @@ flask flask-cors +flask-sqlalchemy +flask-migrate +flask-jwt-extended +flask-bcrypt +flask-login requests openai-whisper torch @@ -10,3 +15,10 @@ python-dotenv click colorlog psutil +redis +psycopg2-binary +alembic +flask-socketio +python-socketio +eventlet +python-dateutil diff --git a/run_dev_server.sh b/run_dev_server.sh new file mode 100755 index 0000000..d4cddce --- /dev/null +++ b/run_dev_server.sh @@ -0,0 +1,32 @@ +#!/bin/bash +# Run Talk2Me development server locally + +echo "Starting Talk2Me development server..." +echo "==================================" +echo "Admin Dashboard: http://localhost:5005/admin" +echo " Token: 4CFvwzmeDWhecfuOHYz7Hyb8nQQ=" +echo "" +echo "User Login: http://localhost:5005/login" +echo " Username: admin" +echo " Password: talk2me123" +echo "" +echo "API Authentication:" +echo " API Key: 6sy2_m8e89FeC2RmUo0CcgufM9b_0OoIwIa8LSEbNhI" +echo "==================================" +echo "" + +# Kill any existing process on port 5005 +lsof -ti:5005 | xargs kill -9 2>/dev/null + +# Set environment variables +export FLASK_ENV=development +export FLASK_DEBUG=1 + +# Run with gunicorn for a more production-like environment +gunicorn --bind 0.0.0.0:5005 \ + --workers 1 \ + --threads 2 \ + --timeout 120 \ + --reload \ + --log-level debug \ + wsgi:application diff --git a/setup_databases.sh b/setup_databases.sh new file mode 100755 index 0000000..b37f450 --- /dev/null +++ b/setup_databases.sh @@ -0,0 +1,156 @@ +#!/bin/bash +# Setup script for Redis and PostgreSQL + +echo "Talk2Me Database Setup Script" +echo "=============================" + +# Check if running as root +if [ "$EUID" -eq 0 ]; then + echo "Please do not run this script as root" + exit 1 +fi + +# Function to check if command exists +command_exists() { + command -v "$1" >/dev/null 2>&1 +} + +# Check for PostgreSQL +echo "Checking PostgreSQL installation..." +if command_exists psql; then + echo "✓ PostgreSQL is installed" + psql --version +else + echo "✗ PostgreSQL is not installed" + echo "Please install PostgreSQL first:" + echo " Ubuntu/Debian: sudo apt-get install postgresql postgresql-contrib" + echo " MacOS: brew install postgresql" + exit 1 +fi + +# Check for Redis +echo "" +echo "Checking Redis installation..." +if command_exists redis-cli; then + echo "✓ Redis is installed" + redis-cli --version +else + echo "✗ Redis is not installed" + echo "Please install Redis first:" + echo " Ubuntu/Debian: sudo apt-get install redis-server" + echo " MacOS: brew install redis" + exit 1 +fi + +# Check if Redis is running +echo "" +echo "Checking Redis server status..." +if redis-cli ping > /dev/null 2>&1; then + echo "✓ Redis server is running" +else + echo "✗ Redis server is not running" + echo "Starting Redis server..." + if command_exists systemctl; then + sudo systemctl start redis + else + redis-server --daemonize yes + fi + sleep 2 + if redis-cli ping > /dev/null 2>&1; then + echo "✓ Redis server started successfully" + else + echo "✗ Failed to start Redis server" + exit 1 + fi +fi + +# Create PostgreSQL database +echo "" +echo "Setting up PostgreSQL database..." +read -p "Enter PostgreSQL username (default: $USER): " PG_USER +PG_USER=${PG_USER:-$USER} + +read -p "Enter database name (default: talk2me): " DB_NAME +DB_NAME=${DB_NAME:-talk2me} + +# Check if database exists +if psql -U "$PG_USER" -lqt | cut -d \| -f 1 | grep -qw "$DB_NAME"; then + echo "Database '$DB_NAME' already exists" + read -p "Do you want to drop and recreate it? (y/N): " RECREATE + if [[ $RECREATE =~ ^[Yy]$ ]]; then + echo "Dropping database '$DB_NAME'..." + psql -U "$PG_USER" -c "DROP DATABASE $DB_NAME;" + echo "Creating database '$DB_NAME'..." + psql -U "$PG_USER" -c "CREATE DATABASE $DB_NAME;" + fi +else + echo "Creating database '$DB_NAME'..." + psql -U "$PG_USER" -c "CREATE DATABASE $DB_NAME;" +fi + +# Create .env file if it doesn't exist +if [ ! -f .env ]; then + echo "" + echo "Creating .env file..." + cat > .env << EOF +# Database Configuration +DATABASE_URL=postgresql://$PG_USER@localhost/$DB_NAME +SQLALCHEMY_DATABASE_URI=postgresql://$PG_USER@localhost/$DB_NAME + +# Redis Configuration +REDIS_URL=redis://localhost:6379/0 +REDIS_DECODE_RESPONSES=false +REDIS_MAX_CONNECTIONS=50 + +# Flask Configuration +FLASK_ENV=development +SECRET_KEY=$(openssl rand -base64 32) +ADMIN_TOKEN=$(openssl rand -base64 24) + +# TTS Configuration +TTS_SERVER_URL=http://localhost:5050/v1/audio/speech +TTS_API_KEY=your-tts-api-key-here + +# Whisper Configuration +WHISPER_MODEL_SIZE=base +WHISPER_DEVICE=auto + +# Ollama Configuration +OLLAMA_HOST=http://localhost:11434 +OLLAMA_MODEL=gemma3:27b +EOF + echo "✓ .env file created" + echo "Please update the TTS_API_KEY in .env file" +else + echo "✓ .env file already exists" +fi + +# Install Python dependencies +echo "" +echo "Installing Python dependencies..." +if [ -f "requirements.txt" ]; then + pip install -r requirements.txt + echo "✓ Python dependencies installed" +else + echo "✗ requirements.txt not found" +fi + +# Initialize database +echo "" +echo "Initializing database..." +python database_init.py + +echo "" +echo "Setup complete!" +echo "" +echo "Next steps:" +echo "1. Update the TTS_API_KEY in .env file" +echo "2. Run 'python migrations.py init' to initialize migrations" +echo "3. Run 'python migrations.py create \"Initial migration\"' to create first migration" +echo "4. Run 'python migrations.py run' to apply migrations" +echo "5. Backup your current app.py and rename app_with_db.py to app.py" +echo "6. Start the application with 'python app.py'" +echo "" +echo "To run Redis and PostgreSQL as services:" +echo " Redis: sudo systemctl enable redis && sudo systemctl start redis" +echo " PostgreSQL: sudo systemctl enable postgresql && sudo systemctl start postgresql" \ No newline at end of file diff --git a/templates/admin_users.html b/templates/admin_users.html new file mode 100644 index 0000000..c00d4c8 --- /dev/null +++ b/templates/admin_users.html @@ -0,0 +1,693 @@ + + + + + + User Management - Talk2Me Admin + + + + + + + +
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User Management

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UserRoleStatusUsageLast LoginCreatedActions
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+ + + + + + + + + + + + \ No newline at end of file diff --git a/templates/login.html b/templates/login.html new file mode 100644 index 0000000..910bd78 --- /dev/null +++ b/templates/login.html @@ -0,0 +1,287 @@ + + + + + + Login - Talk2Me + + + + + + + + + + + + \ No newline at end of file diff --git a/user_rate_limiter.py b/user_rate_limiter.py new file mode 100644 index 0000000..a6de1c3 --- /dev/null +++ b/user_rate_limiter.py @@ -0,0 +1,352 @@ +"""User-specific rate limiting that integrates with authentication""" +import time +import logging +from functools import wraps +from flask import request, jsonify, g +from collections import defaultdict, deque +from threading import Lock +from datetime import datetime, timedelta + +from auth import get_current_user +from auth_models import User +from database import db + +logger = logging.getLogger(__name__) + + +class UserRateLimiter: + """Enhanced rate limiter with user-specific limits""" + + def __init__(self, default_limiter): + self.default_limiter = default_limiter + self.user_buckets = defaultdict(lambda: { + 'tokens': 0, + 'last_update': time.time(), + 'requests': deque(maxlen=1000) + }) + self.lock = Lock() + + def get_user_limits(self, user: User, endpoint: str): + """Get rate limits for a specific user""" + # Start with endpoint-specific or default limits + base_limits = self.default_limiter.get_limits(endpoint) + + if not user: + return base_limits + + # Override with user-specific limits + user_limits = { + 'requests_per_minute': user.rate_limit_per_minute, + 'requests_per_hour': user.rate_limit_per_hour, + 'requests_per_day': user.rate_limit_per_day, + 'burst_size': base_limits.get('burst_size', 10), + 'token_refresh_rate': user.rate_limit_per_minute / 60.0 # Convert to per-second + } + + # Admin users get higher limits + if user.is_admin: + user_limits['requests_per_minute'] *= 10 + user_limits['requests_per_hour'] *= 10 + user_limits['requests_per_day'] *= 10 + user_limits['burst_size'] *= 5 + + return user_limits + + def check_user_rate_limit(self, user: User, endpoint: str, request_size: int = 0): + """Check rate limit for authenticated user""" + if not user: + # Fall back to IP-based limiting + client_id = self.default_limiter.get_client_id(request) + return self.default_limiter.check_rate_limit(client_id, endpoint, request_size) + + with self.lock: + user_id = str(user.id) + limits = self.get_user_limits(user, endpoint) + + # Get or create bucket for user + bucket = self.user_buckets[user_id] + now = time.time() + + # Update tokens based on time passed + time_passed = now - bucket['last_update'] + new_tokens = time_passed * limits['token_refresh_rate'] + bucket['tokens'] = min( + limits['burst_size'], + bucket['tokens'] + new_tokens + ) + bucket['last_update'] = now + + # Clean old requests from sliding windows + minute_ago = now - 60 + hour_ago = now - 3600 + day_ago = now - 86400 + + bucket['requests'] = deque( + (t for t in bucket['requests'] if t > day_ago), + maxlen=1000 + ) + + # Count requests in windows + requests_last_minute = sum(1 for t in bucket['requests'] if t > minute_ago) + requests_last_hour = sum(1 for t in bucket['requests'] if t > hour_ago) + requests_last_day = len(bucket['requests']) + + # Check limits + if requests_last_minute >= limits['requests_per_minute']: + return False, "Rate limit exceeded (per minute)", { + 'retry_after': 60, + 'limit': limits['requests_per_minute'], + 'remaining': 0, + 'reset': int(minute_ago + 60), + 'scope': 'user' + } + + if requests_last_hour >= limits['requests_per_hour']: + return False, "Rate limit exceeded (per hour)", { + 'retry_after': 3600, + 'limit': limits['requests_per_hour'], + 'remaining': 0, + 'reset': int(hour_ago + 3600), + 'scope': 'user' + } + + if requests_last_day >= limits['requests_per_day']: + return False, "Rate limit exceeded (per day)", { + 'retry_after': 86400, + 'limit': limits['requests_per_day'], + 'remaining': 0, + 'reset': int(day_ago + 86400), + 'scope': 'user' + } + + # Check token bucket + if bucket['tokens'] < 1: + retry_after = int(1 / limits['token_refresh_rate']) + return False, "Rate limit exceeded (burst)", { + 'retry_after': retry_after, + 'limit': limits['burst_size'], + 'remaining': 0, + 'reset': int(now + retry_after), + 'scope': 'user' + } + + # Request allowed + bucket['tokens'] -= 1 + bucket['requests'].append(now) + + # Calculate remaining + remaining_minute = limits['requests_per_minute'] - requests_last_minute - 1 + remaining_hour = limits['requests_per_hour'] - requests_last_hour - 1 + remaining_day = limits['requests_per_day'] - requests_last_day - 1 + + return True, None, { + 'limit_minute': limits['requests_per_minute'], + 'limit_hour': limits['requests_per_hour'], + 'limit_day': limits['requests_per_day'], + 'remaining_minute': remaining_minute, + 'remaining_hour': remaining_hour, + 'remaining_day': remaining_day, + 'reset': int(minute_ago + 60), + 'scope': 'user' + } + + def get_user_usage_stats(self, user: User): + """Get usage statistics for a user""" + if not user: + return None + + with self.lock: + user_id = str(user.id) + if user_id not in self.user_buckets: + return { + 'requests_last_minute': 0, + 'requests_last_hour': 0, + 'requests_last_day': 0, + 'tokens_available': 0 + } + + bucket = self.user_buckets[user_id] + now = time.time() + minute_ago = now - 60 + hour_ago = now - 3600 + day_ago = now - 86400 + + requests_last_minute = sum(1 for t in bucket['requests'] if t > minute_ago) + requests_last_hour = sum(1 for t in bucket['requests'] if t > hour_ago) + requests_last_day = sum(1 for t in bucket['requests'] if t > day_ago) + + return { + 'requests_last_minute': requests_last_minute, + 'requests_last_hour': requests_last_hour, + 'requests_last_day': requests_last_day, + 'tokens_available': bucket['tokens'], + 'last_request': bucket['last_update'] + } + + def reset_user_limits(self, user: User): + """Reset rate limits for a user (admin action)""" + if not user: + return False + + with self.lock: + user_id = str(user.id) + if user_id in self.user_buckets: + del self.user_buckets[user_id] + return True + return False + + +# Global user rate limiter instance +from rate_limiter import rate_limiter as default_rate_limiter +user_rate_limiter = UserRateLimiter(default_rate_limiter) + + +def user_aware_rate_limit(endpoint=None, + requests_per_minute=None, + requests_per_hour=None, + requests_per_day=None, + burst_size=None, + check_size=False, + require_auth=False): + """ + Enhanced rate limiting decorator that considers user authentication + + Usage: + @app.route('/api/endpoint') + @user_aware_rate_limit(requests_per_minute=10) + def endpoint(): + return jsonify({'status': 'ok'}) + """ + def decorator(f): + @wraps(f) + def decorated_function(*args, **kwargs): + # Get current user (if authenticated) + user = get_current_user() + + # If auth is required but no user, return 401 + if require_auth and not user: + return jsonify({ + 'success': False, + 'error': 'Authentication required', + 'code': 'auth_required' + }), 401 + + # Get endpoint + endpoint_path = endpoint or request.endpoint + + # Check request size if needed + request_size = 0 + if check_size: + request_size = request.content_length or 0 + + # Check rate limit + if user: + # User-specific rate limiting + allowed, message, headers = user_rate_limiter.check_user_rate_limit( + user, endpoint_path, request_size + ) + else: + # Fall back to IP-based rate limiting + client_id = default_rate_limiter.get_client_id(request) + allowed, message, headers = default_rate_limiter.check_rate_limit( + client_id, endpoint_path, request_size + ) + + if not allowed: + # Log excessive requests + identifier = f"user:{user.username}" if user else f"ip:{request.remote_addr}" + logger.warning(f"Rate limit exceeded for {identifier} on {endpoint_path}: {message}") + + # Update user stats if authenticated + if user: + user.last_active_at = datetime.utcnow() + db.session.commit() + + response = jsonify({ + 'success': False, + 'error': message, + 'retry_after': headers.get('retry_after') if headers else 60 + }) + response.status_code = 429 + + # Add rate limit headers + if headers: + if headers.get('scope') == 'user': + response.headers['X-RateLimit-Limit'] = str(headers.get('limit_minute', 60)) + response.headers['X-RateLimit-Remaining'] = str(headers.get('remaining_minute', 0)) + response.headers['X-RateLimit-Limit-Hour'] = str(headers.get('limit_hour', 1000)) + response.headers['X-RateLimit-Remaining-Hour'] = str(headers.get('remaining_hour', 0)) + response.headers['X-RateLimit-Limit-Day'] = str(headers.get('limit_day', 10000)) + response.headers['X-RateLimit-Remaining-Day'] = str(headers.get('remaining_day', 0)) + else: + response.headers['X-RateLimit-Limit'] = str(headers['limit']) + response.headers['X-RateLimit-Remaining'] = str(headers['remaining']) + response.headers['X-RateLimit-Reset'] = str(headers['reset']) + response.headers['Retry-After'] = str(headers['retry_after']) + + return response + + # Track concurrent requests + default_rate_limiter.increment_concurrent() + + try: + # Store user in g if authenticated + if user: + g.current_user = user + + # Add rate limit info to response + g.rate_limit_headers = headers + response = f(*args, **kwargs) + + # Add headers to successful response + if headers and hasattr(response, 'headers'): + if headers.get('scope') == 'user': + response.headers['X-RateLimit-Limit'] = str(headers.get('limit_minute', 60)) + response.headers['X-RateLimit-Remaining'] = str(headers.get('remaining_minute', 0)) + response.headers['X-RateLimit-Limit-Hour'] = str(headers.get('limit_hour', 1000)) + response.headers['X-RateLimit-Remaining-Hour'] = str(headers.get('remaining_hour', 0)) + response.headers['X-RateLimit-Limit-Day'] = str(headers.get('limit_day', 10000)) + response.headers['X-RateLimit-Remaining-Day'] = str(headers.get('remaining_day', 0)) + else: + response.headers['X-RateLimit-Limit'] = str(headers.get('limit', 60)) + response.headers['X-RateLimit-Remaining'] = str(headers.get('remaining', 0)) + response.headers['X-RateLimit-Reset'] = str(headers['reset']) + + return response + finally: + default_rate_limiter.decrement_concurrent() + + return decorated_function + return decorator + + +def get_user_rate_limit_status(user: User = None): + """Get current rate limit status for a user or IP""" + if not user: + user = get_current_user() + + if user: + stats = user_rate_limiter.get_user_usage_stats(user) + limits = user_rate_limiter.get_user_limits(user, request.endpoint or '/') + + return { + 'type': 'user', + 'identifier': user.username, + 'limits': { + 'per_minute': limits['requests_per_minute'], + 'per_hour': limits['requests_per_hour'], + 'per_day': limits['requests_per_day'] + }, + 'usage': stats + } + else: + # IP-based stats + client_id = default_rate_limiter.get_client_id(request) + stats = default_rate_limiter.get_client_stats(client_id) + + return { + 'type': 'ip', + 'identifier': request.remote_addr, + 'limits': default_rate_limiter.default_limits, + 'usage': stats + } \ No newline at end of file diff --git a/validators.py b/validators.py index ab4a40f..ceb8d90 100644 --- a/validators.py +++ b/validators.py @@ -90,6 +90,19 @@ class Validators: return True, None + @staticmethod + def validate_email(email: str) -> bool: + """Validate email address format""" + if not email or not isinstance(email, str): + return False + + # Basic email pattern + email_pattern = re.compile( + r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$' + ) + + return bool(email_pattern.match(email)) + @staticmethod def validate_url(url: str) -> Optional[str]: """Validate and sanitize URL"""