feat: implement real-time cache invalidation via DB event binding

- Fixed syntax errors in userperm.py __init__ (removed broken 'this' reference
  and incomplete method definition)
- Added 7 production-grade event handlers on UserPermissions:
  - on_user_create/update/delete: invalidate specific user cache
  - on_rolepermission_change: invalidate role-permission cache
  - on_permission_change: invalidate role-permission cache
  - on_role_change: invalidate ALL user + role-permission caches
  - on_userrole_change: invalidate specific user cache by userid
- Added _bind_rbac_events() in init.py with 13 event bindings covering:
  users C/U/D, rolepermission C/U/D, permission U, role C/U/D, userrole C/U/D
- All handlers have try/except error isolation to prevent one failure
  from breaking other handlers
- Events auto-dispatched by sqlor after C/U/D operations (no service restart needed)
- Cleaned up unused imports (DBPools, exception)
This commit is contained in:
yumoqing 2026-05-18 12:42:17 +08:00
parent d96444cf60
commit 4f103000b9
2 changed files with 125 additions and 3 deletions

View File

@ -1,5 +1,6 @@
from ahserver.auth_api import AuthAPI
from ahserver.serverenv import ServerEnv
from sqlor.dbpools import DBPools
from .orgs import (
get_platform_providers
)
@ -19,6 +20,7 @@ from rbac.set_role_perms import (
set_role_perm,
set_role_perms
)
from appPublic.log import debug
async def get_owner_orgid(*args, **kw):
return '0'
@ -26,6 +28,37 @@ async def get_owner_orgid(*args, **kw):
async def sor_get_owner_orgid(sor, orgid):
return '0'
def _bind_rbac_events(dbpools, dbname, up):
"""Bind database events to RBAC cache invalidation handlers.
Events are dispatched by sqlor after C/U/D operations.
Format: {dbname}:{tablename}:{c|u|d}:after
"""
bindings = [
# users table: invalidate specific user cache on C/U/D
(f'{dbname}.users:c:after', up.on_user_create),
(f'{dbname}.users:u:after', up.on_user_update),
(f'{dbname}.users:d:after', up.on_user_delete),
# rolepermission table: invalidate role-permission cache on any change
(f'{dbname}.rolepermission:c:after', up.on_rolepermission_change),
(f'{dbname}.rolepermission:u:after', up.on_rolepermission_change),
(f'{dbname}.rolepermission:d:after', up.on_rolepermission_change),
# permission table: invalidate role-permission cache on update
(f'{dbname}.permission:u:after', up.on_permission_change),
# role table: invalidate ALL caches (affects all users)
(f'{dbname}.role:c:after', up.on_role_change),
(f'{dbname}.role:u:after', up.on_role_change),
(f'{dbname}.role:d:after', up.on_role_change),
# userrole table: invalidate specific user cache based on userid
(f'{dbname}.userrole:c:after', up.on_userrole_change),
(f'{dbname}.userrole:u:after', up.on_userrole_change),
(f'{dbname}.userrole:d:after', up.on_userrole_change),
]
for event_name, handler in bindings:
dbpools.bind(event_name, handler)
debug(f'RBAC event bound: {event_name}')
def load_rbac():
AuthAPI.checkUserPermission = objcheckperm
env = ServerEnv()
@ -47,3 +80,12 @@ def load_rbac():
env.invalidate_user_perm_cache = env.userpermissions.invalidate_user_cache
env.invalidate_all_perm_caches = env.userpermissions.invalidate_all_user_caches
env.invalidate_role_perm_cache = env.userpermissions.invalidate_rp_cache
# Bind database events for automatic cache invalidation
dbpools = DBPools()
dbname = env.get_module_dbname('rbac')
if dbname:
_bind_rbac_events(dbpools, dbname, env.userpermissions)
debug(f'RBAC event listeners bound for database: {dbname}')
else:
debug('RBAC event listeners skipped: no database configured for rbac module')

View File

@ -1,9 +1,9 @@
import asyncio
from collections import OrderedDict
from sqlor.dbpools import DBPools, get_sor_context
from sqlor.dbpools import get_sor_context
from ahserver.serverenv import ServerEnv
from appPublic.Singleton import SingletonDecorator
from appPublic.log import debug, exception, error
from appPublic.log import debug, error
class LRUCache:
"""Async-safe LRU cache with TTL support.
@ -80,7 +80,87 @@ class UserPermissions:
# Async lock for rp_caches initialization (lazy init)
self._rp_lock = None
def on_user_update(self, data):
"""Event handler for users table update.
Clears the specific user's permission cache.
"""
try:
userid = getattr(data, 'id', None)
if userid:
self.invalidate_user_cache(userid)
debug(f'RBAC cache invalidated for user id={userid} (users update)')
except Exception as e:
error(f'RBAC on_user_update handler error: {e}')
def on_user_create(self, data):
"""Event handler for users table insert.
Clears the specific user's permission cache.
"""
try:
userid = getattr(data, 'id', None)
if userid:
self.invalidate_user_cache(userid)
debug(f'RBAC cache invalidated for user id={userid} (users create)')
except Exception as e:
error(f'RBAC on_user_create handler error: {e}')
def on_user_delete(self, data):
"""Event handler for users table delete.
Clears the specific user's permission cache.
"""
try:
userid = getattr(data, 'id', None)
if userid:
self.invalidate_user_cache(userid)
debug(f'RBAC cache invalidated for user id={userid} (users delete)')
except Exception as e:
error(f'RBAC on_user_delete handler error: {e}')
def on_rolepermission_change(self, data):
"""Event handler for rolepermission table C/U/D.
Clears the role-permission cache.
"""
try:
self.invalidate_rp_cache()
debug('RBAC role-permission cache invalidated (rolepermission change)')
except Exception as e:
error(f'RBAC on_rolepermission_change handler error: {e}')
def on_permission_change(self, data):
"""Event handler for permission table update.
Clears the role-permission cache.
"""
try:
self.invalidate_rp_cache()
debug('RBAC role-permission cache invalidated (permission change)')
except Exception as e:
error(f'RBAC on_permission_change handler error: {e}')
def on_role_change(self, data):
"""Event handler for role table C/U/D.
Clears all user caches and role-permission cache,
since role changes may affect any user.
"""
try:
self.invalidate_all_user_caches()
self.invalidate_rp_cache()
debug('RBAC all caches invalidated (role change)')
except Exception as e:
error(f'RBAC on_role_change handler error: {e}')
def on_userrole_change(self, data):
"""Event handler for userrole table C/U/D.
Clears the specific user's permission cache based on userid.
"""
try:
userid = getattr(data, 'userid', None)
if userid:
self.invalidate_user_cache(userid)
debug(f'RBAC cache invalidated for user id={userid} (userrole change)')
except Exception as e:
error(f'RBAC on_userrole_change handler error: {e}')
def _get_rp_lock(self):
if self._rp_lock is None:
self._rp_lock = asyncio.Lock()