mirror of
https://gitverse.ru/kpa39l/md2vk.git
synced 2026-09-29 18:05:04 +00:00
estorozhenko
121 lines
4.9 KiB
Python
121 lines
4.9 KiB
Python
"""Аудит-лог авторизации и запросов API (JSONL, ротация по дням).
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Пишет строку JSON на каждый запрос /api/v1/*:
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ts, ip, method, path, api_key_prefix, user_id, status, success, latency_ms, error.
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Параметры из env:
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- AUDIT_LOG_DIR — каталог для логов (по умолчанию "logs").
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"""
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from __future__ import annotations
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import json
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import logging
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import os
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import time
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from datetime import date, datetime, timezone
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from pathlib import Path
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from starlette.middleware.base import BaseHTTPMiddleware
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from starlette.requests import Request
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logger = logging.getLogger("md2vk.audit")
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class AuditMiddleware(BaseHTTPMiddleware):
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"""Логирует каждый запрос /api/v1/* в JSONL с ротацией по дням."""
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def __init__(self, app, log_dir: str | None = None):
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super().__init__(app)
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self.log_dir = Path(log_dir or os.getenv("AUDIT_LOG_DIR", "logs"))
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self.log_dir.mkdir(parents=True, exist_ok=True)
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self._fh = None
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self._fh_date: date | None = None
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def _ensure_file(self) -> None:
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today = date.today()
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if self._fh is None or self._fh_date != today:
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if self._fh is not None:
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try:
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self._fh.close()
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except Exception:
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pass
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path = self.log_dir / f"access.{today.isoformat()}.log"
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self._fh = open(path, "a", encoding="utf-8")
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self._fh_date = today
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def _write(self, record: dict) -> None:
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try:
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self._ensure_file()
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self._fh.write(json.dumps(record, ensure_ascii=False, default=str) + "\n")
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self._fh.flush()
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except Exception:
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# Логгер не должен ронять API
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logger.exception("audit write failed")
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async def dispatch(self, request: Request, call_next):
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start = time.monotonic()
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response = None
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error = None
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try:
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response = await call_next(request)
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return response
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except Exception as exc: # noqa: BLE001
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error = str(exc)
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raise
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finally:
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path = request.url.path
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if path.startswith("/api/v1"):
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try:
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latency_ms = round((time.monotonic() - start) * 1000, 1)
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status = response.status_code if response is not None else 500
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auth = request.headers.get("authorization", "")
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# api_key может быть в теле (POST) — пытаемся достать
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api_key_prefix = ""
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api_key_hash_short = ""
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user_id = None
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if auth.startswith("Bearer "):
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api_key_prefix = auth[len("Bearer "):][:12]
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elif request.method == "POST":
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api_key_prefix = self._api_key_from_body(request)
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if "md2vk_" in api_key_prefix:
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# вычислим короткий хэш для привязки к user (без хранения ключа)
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import hashlib
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api_key_hash_short = hashlib.sha256(
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api_key_prefix.encode()
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).hexdigest()[:12]
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record = {
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"ts": datetime.now(timezone.utc).isoformat(timespec="seconds"),
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"ip": (request.client.host if request.client else ""),
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"method": request.method,
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"path": path,
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"query": str(request.url.query) or "",
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"api_key_prefix": api_key_prefix,
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"api_key_hash_short": api_key_hash_short,
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"user_id": user_id,
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"status": status,
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"success": status < 400,
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"latency_ms": latency_ms,
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"error": error,
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}
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self._write(record)
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except Exception: # noqa: BLE001
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logger.exception("audit dispatch failed")
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@staticmethod
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def _api_key_from_body(request: Request) -> str:
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"""Достаёт api_key из JSON-тела, не ломая повторное чтение."""
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try:
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# starlette кэширует _body — повторное чтение в роутере безопасно
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body = getattr(request, "_body", None)
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if body is None:
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body = request.body() if hasattr(request, "body") else b""
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if isinstance(body, bytes) and body:
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data = json.loads(body)
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key = data.get("api_key", "")
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return str(key)[:12]
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except Exception:
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return ""
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return "" |