|
|
| import logging
|
| from contextlib import asynccontextmanager
|
| from typing import Optional
|
|
|
| from fastapi import FastAPI, Request, HTTPException, Depends, Header
|
| from fastapi.responses import JSONResponse, StreamingResponse
|
|
|
| from app.core.config import settings
|
| from app.providers.notion_provider import NotionAIProvider
|
|
|
| logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')
|
| logger = logging.getLogger(__name__)
|
|
|
| provider = NotionAIProvider()
|
|
|
| @asynccontextmanager
|
| async def lifespan(app: FastAPI):
|
| logger.info(f"应用启动中... {settings.APP_NAME} v{settings.APP_VERSION}")
|
| logger.info("服务已配置为 Notion AI 代理模式。")
|
| logger.info(f"服务将在 http://localhost:{settings.NGINX_PORT} 上可用")
|
| yield
|
| logger.info("应用关闭。")
|
|
|
| app = FastAPI(
|
| title=settings.APP_NAME,
|
| version=settings.APP_VERSION,
|
| description=settings.DESCRIPTION,
|
| lifespan=lifespan
|
| )
|
|
|
| async def verify_api_key(authorization: Optional[str] = Header(None)):
|
| if settings.API_MASTER_KEY and settings.API_MASTER_KEY != "1":
|
| if not authorization or "bearer" not in authorization.lower():
|
| raise HTTPException(status_code=401, detail="需要 Bearer Token 认证。")
|
| token = authorization.split(" ")[-1]
|
| if token != settings.API_MASTER_KEY:
|
| raise HTTPException(status_code=403, detail="无效的 API Key。")
|
|
|
| @app.post("/v1/chat/completions", dependencies=[Depends(verify_api_key)])
|
| async def chat_completions(request: Request) -> StreamingResponse:
|
| try:
|
| request_data = await request.json()
|
| return await provider.chat_completion(request_data)
|
| except Exception as e:
|
| logger.error(f"处理聊天请求时发生顶层错误: {e}", exc_info=True)
|
| raise HTTPException(status_code=500, detail=f"内部服务器错误: {str(e)}")
|
|
|
| @app.get("/v1/models", dependencies=[Depends(verify_api_key)], response_class=JSONResponse)
|
| async def list_models():
|
| return await provider.get_models()
|
|
|
| @app.get("/", summary="根路径")
|
| def root():
|
| return {"message": f"欢迎来到 {settings.APP_NAME} v{settings.APP_VERSION}. 服务运行正常。"}
|
|
|
