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"""
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Copyright © 2019 Cloud Linux Software Inc.
This software is also available under ImunifyAV commercial license,
see <https://www.imunify360.com/legal/eula>
"""
import asyncio
import contextlib
from logging import getLogger
from imav.malwarelib.subsys.ainotify import Inotify, Watcher
from defence360agent.api import inactivity
from defence360agent.contracts.config import MyImunifyConfig
from defence360agent.contracts.plugins import MessageSource
from defence360agent.feature_management.control import (
is_native_feature_management_enabled,
)
from defence360agent.feature_management.utils import (
sync_users as sync_feature_management_users,
)
from defence360agent.myimunify.model import sync_users as sync_myimunify_users
from defence360agent.subsys.panels import hosting_panel
from defence360agent.utils import finally_happened, recurring_check
logger = getLogger(__name__)
class PasswdWatcher(MessageSource):
WATCH_PATH = b"/etc"
WATCH_FILE = b"passwd"
WATCH_MASK = Inotify.MOVED_TO
async def create_source(self, loop, sink, watcher=None):
self._loop = loop
self._sink = sink
self._hosting_panel = hosting_panel.HostingPanel()
if watcher is None:
self._watcher = Watcher(self._loop)
else:
self._watcher = watcher
self._watcher.watch(self.WATCH_PATH, self.WATCH_MASK)
if not await is_native_feature_management_enabled():
await self.update_users_permissions()
if MyImunifyConfig.ENABLED:
await self.update_myimunify_users()
self._watch_task = self._loop.create_task(self._process_events())
async def shutdown(self):
self._watch_task.cancel()
with contextlib.suppress(asyncio.CancelledError):
await self._watch_task
self._watcher and self._watcher.close()
async def update_users_permissions(self) -> bool:
return await sync_feature_management_users(
await self._hosting_panel.get_users()
)
async def update_myimunify_users(self) -> bool:
return await sync_myimunify_users(
self._sink, await self._hosting_panel.get_users()
)
@recurring_check(0)
async def _process_events(self):
event = await self._watcher.get_event()
if event.name != self.WATCH_FILE:
return
if not await is_native_feature_management_enabled():
# updating the users list may take a while on different panels
with inactivity.track.task("permissions_update"):
await finally_happened(
self.update_users_permissions, max_tries=5, delay=1
)
logger.info("Feature management permissions updated")
if MyImunifyConfig.ENABLED:
await self.update_myimunify_users()