300 lines
10 KiB
Python
300 lines
10 KiB
Python
"""
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Refactored main.py - Step 1 of Server Architecture Improvement
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This is a refactored version of the original main.py that demonstrates the new
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modular architecture with separated concerns:
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- SessionManager: Handles session lifecycle and persistence
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- LobbyManager: Handles lobby management and chat
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- AuthManager: Handles authentication and name protection
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- WebSocket message routing: Clean message handling
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- Separated API modules: Admin, session, and lobby endpoints
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This maintains backward compatibility while providing a foundation for
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further improvements.
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"""
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from __future__ import annotations
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import os
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import asyncio
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from contextlib import asynccontextmanager
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from fastapi import FastAPI, WebSocket, Path, Request
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from fastapi.responses import Response
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from fastapi.staticfiles import StaticFiles
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from starlette.websockets import WebSocketDisconnect
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# Import our new modular components
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try:
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from core.session_manager import SessionManager
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from core.lobby_manager import LobbyManager
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from core.auth_manager import AuthManager
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from websocket.connection import WebSocketConnectionManager
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from api.admin import AdminAPI
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from api.sessions import SessionAPI
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from api.lobbies import LobbyAPI
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except ImportError:
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# Handle relative imports when running as module
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import sys
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import os
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sys.path.append(os.path.dirname(os.path.abspath(__file__)))
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from core.session_manager import SessionManager
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from core.lobby_manager import LobbyManager
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from core.auth_manager import AuthManager
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from websocket.connection import WebSocketConnectionManager
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from api.admin import AdminAPI
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from api.sessions import SessionAPI
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from api.lobbies import LobbyAPI
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from logger import logger
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# Configuration
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public_url = os.getenv("PUBLIC_URL", "/")
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if not public_url.endswith("/"):
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public_url += "/"
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ADMIN_TOKEN = os.getenv("ADMIN_TOKEN", None)
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# Global managers - these replace the global variables from original main.py
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session_manager: SessionManager = None
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lobby_manager: LobbyManager = None
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auth_manager: AuthManager = None
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websocket_manager: WebSocketConnectionManager = None
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# API routers
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admin_api: AdminAPI = None
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session_api: SessionAPI = None
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lobby_api: LobbyAPI = None
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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"""Lifespan context manager for startup and shutdown events"""
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global session_manager, lobby_manager, auth_manager, websocket_manager
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global admin_api, session_api, lobby_api
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# Startup
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logger.info("Starting AI Voice Bot server with modular architecture...")
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# Initialize managers
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session_manager = SessionManager("sessions.json")
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lobby_manager = LobbyManager()
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auth_manager = AuthManager("sessions.json")
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# Load existing data
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session_manager.load()
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# Restore lobbies for existing sessions
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# Note: This is a simplified version - full lobby restoration would be more complex
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for session in session_manager.get_all_sessions():
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for lobby_info in session.lobbies:
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# Create lobby if it doesn't exist
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lobby = lobby_manager.create_or_get_lobby(
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name=lobby_info.name, private=lobby_info.private
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)
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# Add session to lobby (but don't trigger events during startup)
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with lobby.lock:
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lobby.sessions[session.id] = session
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# Set up dependency injection for name protection
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lobby_manager.set_name_protection_checker(auth_manager.is_name_protected)
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# Initialize WebSocket manager
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websocket_manager = WebSocketConnectionManager(
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session_manager=session_manager,
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lobby_manager=lobby_manager,
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auth_manager=auth_manager,
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)
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# Initialize API routers
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admin_api = AdminAPI(
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session_manager=session_manager,
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lobby_manager=lobby_manager,
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auth_manager=auth_manager,
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admin_token=ADMIN_TOKEN,
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public_url=public_url,
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)
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session_api = SessionAPI(session_manager=session_manager, public_url=public_url)
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lobby_api = LobbyAPI(
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session_manager=session_manager,
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lobby_manager=lobby_manager,
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public_url=public_url,
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)
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# Register API routes
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app.include_router(admin_api.router)
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app.include_router(session_api.router)
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app.include_router(lobby_api.router)
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# Start background tasks
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await session_manager.start_background_tasks()
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logger.info("AI Voice Bot server started successfully!")
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logger.info(f"Server URL: {public_url}")
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logger.info(f"Sessions loaded: {session_manager.get_session_count()}")
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logger.info(f"Lobbies available: {lobby_manager.get_lobby_count()}")
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logger.info(f"Protected names: {auth_manager.get_protection_count()}")
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if ADMIN_TOKEN:
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logger.info("Admin endpoints protected with token")
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else:
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logger.warning("Admin endpoints are unprotected")
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yield
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# Shutdown
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logger.info("Shutting down AI Voice Bot server...")
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# Stop background tasks
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if session_manager:
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await session_manager.stop_background_tasks()
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logger.info("Server shutdown complete")
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# Create FastAPI app
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app = FastAPI(
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title="AI Voice Bot Server (Refactored)",
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description="WebRTC voice chat server with modular architecture",
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version="2.0.0",
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lifespan=lifespan,
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)
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logger.info(f"Starting server with public URL: {public_url}")
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@app.websocket(f"{public_url}" + "ws/lobby/{lobby_id}/{session_id}")
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async def lobby_websocket(
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websocket: WebSocket,
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lobby_id: str | None = Path(...),
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session_id: str | None = Path(...),
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):
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"""WebSocket endpoint for lobby connections - now uses WebSocketConnectionManager"""
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await websocket_manager.handle_connection(websocket, lobby_id, session_id)
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# Health check for the new architecture
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@app.get(f"{public_url}api/system/health")
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def system_health():
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"""System health check showing manager status"""
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return {
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"status": "ok",
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"architecture": "modular",
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"version": "2.0.0",
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"managers": {
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"session_manager": "active" if session_manager else "inactive",
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"lobby_manager": "active" if lobby_manager else "inactive",
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"auth_manager": "active" if auth_manager else "inactive",
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"websocket_manager": "active" if websocket_manager else "inactive",
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},
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"statistics": {
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"sessions": session_manager.get_session_count() if session_manager else 0,
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"lobbies": lobby_manager.get_lobby_count() if lobby_manager else 0,
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"protected_names": auth_manager.get_protection_count()
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if auth_manager
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else 0,
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},
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}
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# Serve static files or proxy to frontend development server
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PRODUCTION = os.getenv("PRODUCTION", "false").lower() == "true"
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client_build_path = os.path.join(os.path.dirname(__file__), "/client/build")
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if PRODUCTION:
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logger.info(f"Serving static files from: {client_build_path} at {public_url}")
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app.mount(
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public_url, StaticFiles(directory=client_build_path, html=True), name="static"
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)
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else:
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logger.info(f"Proxying static files to http://client:3000 at {public_url}")
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import ssl
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import httpx
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@app.api_route(
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f"{public_url}{{path:path}}",
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methods=["GET", "POST", "PUT", "DELETE", "OPTIONS", "HEAD", "PATCH"],
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)
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async def proxy_static(request: Request, path: str):
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# Do not proxy API or websocket paths
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if path.startswith("api/") or path.startswith("ws/"):
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return Response(status_code=404)
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url = f"{request.url.scheme}://client:3000/{public_url.strip('/')}/{path}"
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if not path:
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url = f"{request.url.scheme}://client:3000/{public_url.strip('/')}"
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headers = dict(request.headers)
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try:
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# Accept self-signed certs in dev
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async with httpx.AsyncClient(verify=False) as client:
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proxy_req = client.build_request(
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request.method, url, headers=headers, content=await request.body()
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)
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proxy_resp = await client.send(proxy_req, stream=True)
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content = await proxy_resp.aread()
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# Remove problematic headers for browser decoding
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filtered_headers = {
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k: v
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for k, v in proxy_resp.headers.items()
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if k.lower()
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not in ["content-encoding", "transfer-encoding", "content-length"]
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}
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return Response(
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content=content,
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status_code=proxy_resp.status_code,
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headers=filtered_headers,
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)
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except Exception as e:
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logger.error(f"Proxy error for {url}: {e}")
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return Response("Proxy error", status_code=502)
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# WebSocket proxy for /ws (for React DevTools, etc.)
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import websockets
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@app.websocket("/ws")
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async def websocket_proxy(websocket: WebSocket):
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logger.info("REACT: WebSocket proxy connection established.")
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# Get scheme from websocket.url (should be 'ws' or 'wss')
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scheme = websocket.url.scheme if hasattr(websocket, "url") else "ws"
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target_url = f"{scheme}://client:3000/ws"
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await websocket.accept()
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try:
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# Accept self-signed certs in dev for WSS
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ssl_ctx = ssl.create_default_context()
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ssl_ctx.check_hostname = False
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ssl_ctx.verify_mode = ssl.CERT_NONE
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async with websockets.connect(target_url, ssl=ssl_ctx) as target_ws:
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async def client_to_server():
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while True:
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msg = await websocket.receive_text()
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await target_ws.send(msg)
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async def server_to_client():
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while True:
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msg = await target_ws.recv()
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if isinstance(msg, str):
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await websocket.send_text(msg)
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else:
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await websocket.send_bytes(msg)
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try:
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await asyncio.gather(client_to_server(), server_to_client())
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except (WebSocketDisconnect, websockets.ConnectionClosed):
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logger.info("REACT: WebSocket proxy connection closed.")
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except Exception as e:
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logger.error(f"REACT: WebSocket proxy error: {e}")
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await websocket.close()
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if __name__ == "__main__":
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import uvicorn
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uvicorn.run(app, host="0.0.0.0", port=8000)
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