41bbd8c182
Complete rewrite from task management to full-featured chat system: Core Features: - Real-time WebSocket messaging with connection management - Direct messages and group chats with admin controls - Message types: text, images, videos, audio, documents - Message status tracking: sent, delivered, read receipts - Typing indicators and user presence (online/offline) - Message replies, editing, and deletion Security & Encryption: - End-to-end encryption with RSA + AES hybrid approach - JWT authentication for API and WebSocket connections - Secure file storage with access control - Automatic RSA key pair generation per user Media & File Sharing: - Multi-format file upload (images, videos, audio, documents) - Automatic thumbnail generation for images/videos - File size validation and MIME type checking - Secure download endpoints with permission checks Notifications & Alerts: - Real-time WebSocket notifications - Push notifications via Firebase integration - @username mention alerts with notification history - Unread message and mention counting - Custom notification types (message, mention, group invite) Advanced Features: - Group chat management with roles (member, admin, owner) - User search and chat member management - Message pagination and chat history - Last seen timestamps and activity tracking - Comprehensive API documentation with WebSocket events Architecture: - Clean layered architecture with services, models, schemas - WebSocket connection manager for real-time features - Modular notification system with multiple channels - Comprehensive error handling and validation - Production-ready with Docker support Technologies: FastAPI, WebSocket, SQLAlchemy, SQLite, Cryptography, Firebase, Pillow
26 lines
607 B
Python
26 lines
607 B
Python
from pathlib import Path
|
|
from sqlalchemy import create_engine
|
|
from sqlalchemy.orm import sessionmaker
|
|
from app.db.base import Base
|
|
|
|
DB_DIR = Path("/app/storage/db")
|
|
DB_DIR.mkdir(parents=True, exist_ok=True)
|
|
|
|
SQLALCHEMY_DATABASE_URL = f"sqlite:///{DB_DIR}/chat.sqlite"
|
|
|
|
engine = create_engine(
|
|
SQLALCHEMY_DATABASE_URL,
|
|
connect_args={"check_same_thread": False}
|
|
)
|
|
|
|
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
|
|
|
|
def get_db():
|
|
db = SessionLocal()
|
|
try:
|
|
yield db
|
|
finally:
|
|
db.close()
|
|
|
|
def create_tables():
|
|
Base.metadata.create_all(bind=engine) |