fix: stabilize rule config and cross-review backend

fastapi_modules/fastapi_leaudit/services/impl/permissionServiceImpl.py

@@ -9,6 +9,7 @@
 
 from fastapi_common.fastapi_common_logger import logger
 from fastapi_common.fastapi_common_sqlalchemy.database import GetAsyncSession
+import time
 
 from fastapi_modules.fastapi_leaudit.services.permissionService import IPermissionService
 
@@ -16,6 +17,9 @@ from fastapi_modules.fastapi_leaudit.services.permissionService import IPermissi
 class PermissionServiceImpl(IPermissionService):
     """权限检查服务实现。"""
 
+    def __init__(self) -> None:
+        self._permission_cache: dict[int, tuple[float, tuple[set[str], set[str]]]] = {}
+
     async def CheckPermission(self, UserId: int, PermissionKey: str) -> bool:
         """检查用户是否拥有指定权限。
 
@@ -74,6 +78,11 @@ class PermissionServiceImpl(IPermissionService):
 
     async def _getUserPermissions(self, UserId: int) -> tuple[set[str], set[str]]:
         """从数据库查询用户的 GRANT 和 DENY 权限集合。"""
+        cached = self._permission_cache.get(UserId)
+        now = time.monotonic()
+        if cached and now - cached[0] <= 60:
+            return cached[1]
+
         grants: set[str] = set()
         denies: set[str] = set()
 
@@ -107,6 +116,7 @@ class PermissionServiceImpl(IPermissionService):
                     denies.add(permKey)
 
         logger.debug(f"用户权限: user={UserId}, grants={len(grants)}, denies={len(denies)}")
+        self._permission_cache[UserId] = (now, (grants, denies))
         return grants, denies
 
     @staticmethod