v6ole
0bab72ea98
1. /api/health 404: 前端 fetchVersion 调用 /api/health，但后端只有 /health。 OpenResty 保留完整路径，需要在后端添加 /api/health 端点。 2. 扫描/发现 500: check_service.py 的连接池 _get_cached_ssh 缓存了 SSH 连接，但调用方在 finally 中 ssh.close() 关闭连接。第二次调用 从缓存拿到已关闭的连接导致执行失败。改为异常时清除缓存、正常时 保留连接（5分钟TTL自动管理生命周期）。 Co-Authored-By: Claude <noreply@anthropic.com>
121 lines
4.1 KiB
Python
121 lines
4.1 KiB
Python
"""FastAPI 主应用"""
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import os
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import logging
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from pythonjsonlogger import jsonlogger
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from fastapi import FastAPI, Request
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from fastapi.middleware.cors import CORSMiddleware
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from slowapi import Limiter, _rate_limit_exceeded_handler
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from slowapi.errors import RateLimitExceeded
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from starlette.middleware.base import BaseHTTPMiddleware
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from starlette.responses import JSONResponse
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from app.core.config import settings
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from app.api.v1 import auth, devices, check, import_data, stats, olt, provision, users, roles, inventory, settings as settings_api, audit, wechat, ws, monitor
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from app.middleware.audit_middleware import AuditMiddleware
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# 结构化 JSON 日志
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_handler = logging.StreamHandler()
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_handler.setFormatter(jsonlogger.JsonFormatter('%(asctime)s %(name)s %(levelname)s %(message)s'))
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logging.getLogger().handlers = [_handler]
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logging.getLogger().setLevel(logging.INFO)
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logging.getLogger('uvicorn.access').handlers = [_handler]
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# 请求体大小限制中间件
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MAX_BODY_SIZE = 10 * 1024 * 1024 # 10 MB
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class RequestSizeLimitMiddleware(BaseHTTPMiddleware):
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async def dispatch(self, request: Request, call_next):
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if request.headers.get("content-length"):
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if int(request.headers["content-length"]) > MAX_BODY_SIZE:
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return JSONResponse({"detail": "请求体过大，最大 10MB"}, status_code=413)
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return await call_next(request)
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# CORS 白名单 — 支持通过环境变量 CORS_ORIGINS 覆盖（逗号分隔）
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CORS_ORIGINS_DEFAULT = "http://localhost:5173,http://localhost:18002,https://onu.dhdx.fun"
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ALLOWED_ORIGINS = [o.strip() for o in os.getenv("CORS_ORIGINS", CORS_ORIGINS_DEFAULT).split(",") if o.strip()]
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def get_client_ip(request: Request) -> str:
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"""读取 X-Forwarded-For 首字段作为真实客户端 IP"""
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forwarded = request.headers.get("X-Forwarded-For")
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if forwarded:
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return forwarded.split(",")[0].strip()
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return request.client.host if request.client else "unknown"
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limiter = Limiter(key_func=get_client_ip, default_limits=["120/minute"])
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app = FastAPI(title=settings.APP_NAME, debug=settings.DEBUG)
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app.state.limiter = limiter
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app.add_exception_handler(RateLimitExceeded, _rate_limit_exceeded_handler)
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app.add_middleware(RequestSizeLimitMiddleware)
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app.add_middleware(
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CORSMiddleware,
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allow_origins=ALLOWED_ORIGINS if ALLOWED_ORIGINS else ["*"],
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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app.add_middleware(AuditMiddleware)
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app.include_router(auth.router)
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app.include_router(devices.router)
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app.include_router(check.router)
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app.include_router(import_data.router)
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app.include_router(stats.router)
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app.include_router(olt.router)
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app.include_router(provision.router)
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app.include_router(users.router)
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app.include_router(roles.router)
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app.include_router(inventory.router)
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app.include_router(settings_api.router)
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app.include_router(audit.router)
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app.include_router(wechat.router)
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app.include_router(ws.router)
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app.include_router(monitor.router)
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@app.on_event("startup")
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async def startup():
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import asyncio
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asyncio.create_task(ws._redis_listener())
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def _read_version() -> str:
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"""读取项目版本号"""
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version_paths = ["/app/VERSION", os.path.join(os.path.dirname(__file__), "../../VERSION")]
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for p in version_paths:
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if os.path.exists(p):
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with open(p) as f:
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return f.read().strip()
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return "0.0.0"
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@app.get("/health")
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def health_check():
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status = {"status": "ok", "db": "ok", "redis": "ok", "version": _read_version()}
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try:
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import redis
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import psycopg2
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r = redis.from_url(settings.REDIS_URL, socket_timeout=2)
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r.ping()
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except Exception:
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status["redis"] = "error"
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status["status"] = "degraded"
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try:
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from sqlalchemy import text
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from app.core.database import SessionLocal
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db = SessionLocal()
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db.execute(text("SELECT 1"))
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db.close()
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except Exception:
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status["db"] = "error"
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status["status"] = "degraded"
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return status
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@app.get("/api/health")
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def api_health_check():
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"""API 路径下的健康检查（用于前端通过 /api/ 代理访问）"""
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return health_check()
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