81 lines
3.1 KiB
Python
81 lines
3.1 KiB
Python
"""平台访问审计中间件（T-02 · F-02 全量留痕 / 手册 P-05）。
|
||
|
||
每个非排障路径请求落一行 audit_log（event_type='http_access'，agent_type=
|
||
'platform'——与 simulate 网关审计口径一致）：method/path/status/latency_ms/
|
||
request_id 进 input_summary，actor 取 deps 鉴权成功后注入的 request.state.auth
|
||
（401 时为 anonymous）。写库失败降级 warning 不阻塞响应（业务层关键判定审计
|
||
[authz/trade_event/suitability_check 等] 不经此路径，不受降级影响）。
|
||
|
||
注册顺序：trace 中间件之后注册（即执行序在 trace 之内），保证审计时
|
||
trace_id/request_id 已绑定。
|
||
"""
|
||
|
||
from __future__ import annotations
|
||
|
||
import logging
|
||
import time
|
||
|
||
from fastapi import Request
|
||
from starlette.responses import Response
|
||
|
||
from app.repository.risk_repository import RiskRepository
|
||
from app.utils.trace import current_request_id, current_trace
|
||
|
||
logger = logging.getLogger(__name__)
|
||
|
||
# 排障/文档路径不落访问审计（健康探活噪音；docs 页面无业务语义）
|
||
_SKIP_PATHS = {"/health", "/openapi.json", "/docs", "/redoc", "/favicon.ico"}
|
||
|
||
|
||
def _repo() -> RiskRepository:
|
||
"""审计仓储入口（测试 monkeypatch 点，与 api 路由模式一致）。"""
|
||
return RiskRepository()
|
||
|
||
|
||
def write_http_access(request: Request, status: int, latency_ms: int) -> None:
|
||
"""单请求访问审计（INSERT-only；audit_middleware 调用，测试可直调）。"""
|
||
auth = getattr(request.state, "auth", None)
|
||
_repo().insert_audit_log(
|
||
{
|
||
"trace_id": current_trace(),
|
||
"event_type": "http_access",
|
||
"agent_type": "platform",
|
||
"actor_id": auth.actor_id if auth is not None else "anonymous",
|
||
"customer_id": None,
|
||
"rule_id": None,
|
||
"input_summary": {
|
||
"method": request.method,
|
||
"path": request.url.path,
|
||
"status": status,
|
||
"latency_ms": latency_ms,
|
||
"request_id": current_request_id(),
|
||
},
|
||
"decision": str(status),
|
||
"risk_score": None,
|
||
"handler_id": None,
|
||
"handler_result": None,
|
||
"handler_comment": None,
|
||
}
|
||
)
|
||
|
||
|
||
async def audit_middleware(request: Request, call_next) -> Response:
|
||
"""http_access 中间件：异常请求留痕 500 后继续抛（trace 层兜底出错误体）。"""
|
||
if request.url.path in _SKIP_PATHS or request.method == "OPTIONS":
|
||
return await call_next(request)
|
||
started = time.perf_counter()
|
||
try:
|
||
response = await call_next(request)
|
||
status = response.status_code
|
||
except Exception:
|
||
try:
|
||
write_http_access(request, 500, int((time.perf_counter() - started) * 1000))
|
||
except Exception:
|
||
logger.warning("http_access audit failed on 500 path", exc_info=True)
|
||
raise
|
||
try:
|
||
write_http_access(request, status, int((time.perf_counter() - started) * 1000))
|
||
except Exception:
|
||
logger.warning("http_access audit failed (degrade, not blocking)", exc_info=True)
|
||
return response
|