duxingchen
3286a11bc7
- 复制来源: /home/yueli/track @ 192c8ee (feature/ai-audit-update) - 组织隔离目标: LICA - 端口规划: 前端 8030 / 后端 8031 / 数据库 8032 - 已排除 deploy.sh、deploy_full.sh、docker-compose.prod.yml（IRIS 生产发布脚本） - 已排除工作区未提交改动，取干净的 192c8ee 状态
114 lines
4.2 KiB
Python
114 lines
4.2 KiB
Python
import logging
|
||
from contextlib import asynccontextmanager
|
||
from fastapi import FastAPI, Request
|
||
from fastapi.middleware.cors import CORSMiddleware
|
||
from fastapi.responses import JSONResponse
|
||
from app.core.config import settings
|
||
from app.core.audit_middleware import AuditMiddleware
|
||
from app.core.health import router as health_router
|
||
from app.core.logging import request_id_var, setup_logging
|
||
from app.core.middleware import RequestContextMiddleware
|
||
from app.api.v1.router import api_router
|
||
|
||
# 日志必须在任何模块开始产日志之前配置好，故放模块顶层而非 lifespan 内
|
||
setup_logging(level=settings.LOG_LEVEL, json_output=settings.LOG_JSON)
|
||
|
||
logger = logging.getLogger("track.main")
|
||
|
||
|
||
def _init_error_tracking() -> None:
|
||
"""可选错误追踪：未配置 DSN，或未安装 sentry-sdk 时静默跳过"""
|
||
if not settings.SENTRY_DSN:
|
||
return
|
||
try:
|
||
import sentry_sdk
|
||
except ImportError:
|
||
logger.warning(
|
||
"已配置 SENTRY_DSN 但未安装 sentry-sdk，错误追踪未启用；"
|
||
"需要时执行 pip install sentry-sdk"
|
||
)
|
||
return
|
||
sentry_sdk.init(
|
||
dsn=settings.SENTRY_DSN,
|
||
traces_sample_rate=settings.SENTRY_TRACES_SAMPLE_RATE,
|
||
environment="production" if not settings.DEBUG else "development",
|
||
release=settings.APP_VERSION,
|
||
)
|
||
logger.info("错误追踪已启用 (Sentry)")
|
||
|
||
|
||
@asynccontextmanager
|
||
async def lifespan(app: FastAPI):
|
||
"""应用生命周期：启动时初始化连接，关闭时释放资源"""
|
||
_init_error_tracking()
|
||
logger.info(
|
||
"服务启动",
|
||
extra={
|
||
"extra_fields": {
|
||
"version": settings.APP_VERSION,
|
||
"debug": settings.DEBUG,
|
||
"cors_origins": settings.CORS_ORIGINS_LIST,
|
||
}
|
||
},
|
||
)
|
||
yield
|
||
logger.info("服务关闭")
|
||
|
||
|
||
app = FastAPI(
|
||
title="Track Production API",
|
||
description="工厂生产流转管理系统 API",
|
||
version=settings.APP_VERSION,
|
||
lifespan=lifespan,
|
||
)
|
||
|
||
# ---- CORS 跨域配置（从环境变量读取白名单） ----
|
||
app.add_middleware(
|
||
CORSMiddleware,
|
||
allow_origins=settings.CORS_ORIGINS_LIST,
|
||
allow_credentials=True,
|
||
allow_methods=["*"],
|
||
allow_headers=["*"],
|
||
# 暴露给浏览器 JS 读取：前端报错时才能把 request_id 一起带上便于对账
|
||
expose_headers=["X-Request-ID"],
|
||
)
|
||
|
||
# Starlette 的 add_middleware 是「后添加者在外层」。执行顺序（由外到内）：
|
||
# RequestContextMiddleware -> AuditMiddleware -> CORS -> 路由
|
||
# AuditMiddleware 必须在 RequestContext 内层，才能读到后者写入 request.state
|
||
# 的 request_id，从而把审计记录与结构化日志对上。
|
||
app.add_middleware(AuditMiddleware)
|
||
app.add_middleware(RequestContextMiddleware)
|
||
|
||
|
||
@app.exception_handler(Exception)
|
||
async def unhandled_exception_handler(request: Request, exc: Exception) -> JSONResponse:
|
||
"""兜底异常处理。
|
||
|
||
完整堆栈只进日志；响应体仅返回 request_id —— 既不把内部实现泄露给客户端，
|
||
又让用户报障时能凭这个 ID 在日志里精确定位到本次失败。
|
||
"""
|
||
# 优先取 request.state（见 RequestContextMiddleware 的说明）：
|
||
# 本处理器由 ServerErrorMiddleware 调用，此时 contextvar 已被重置
|
||
request_id = getattr(request.state, "request_id", None) or request_id_var.get()
|
||
logger.exception(
|
||
"未处理异常: %s %s",
|
||
request.method,
|
||
request.url.path,
|
||
extra={"extra_fields": {"method": request.method, "path": request.url.path}},
|
||
)
|
||
return JSONResponse(
|
||
status_code=500,
|
||
content={"detail": "服务器内部错误", "request_id": request_id},
|
||
# 该响应由 ServerErrorMiddleware（位于 RequestContextMiddleware 外层）
|
||
# 生成，中间件没机会再往响应头写 X-Request-ID，故在此显式补上，
|
||
# 保证报障时前端从响应头就能拿到可对账的 ID。
|
||
headers={"X-Request-ID": request_id} if request_id else None,
|
||
)
|
||
|
||
|
||
# ---- 注册路由 ----
|
||
app.include_router(api_router, prefix="/api/v1")
|
||
# 健康检查挂在根路径（/health*），运维探针不经过 /api/v1
|
||
app.include_router(health_router)
|