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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>
"""
from logging import getLogger
from defence360agent.contracts.plugins import (
expect,
MessageSource,
MessageSink,
)
from defence360agent.contracts.messages import MessageType
from defence360agent.utils import recurring_check
from defence360agent.utils.check_lock import check_lock
from imav.malwarelib.scan.cleaners.detached_dir import (
MalwareDetachedDirCleaner,
)
from imav.malwarelib.scan.cleaners.outdated_scans import (
OutdatedHistoryCleaner,
OutdatedHitsCleaner,
OutdatedScansCleaner,
)
from imav.malwarelib.scan.cleaners.uncompleted_scans import (
UncompletedScansCleaner,
)
logger = getLogger(__name__)
class MrProper(MessageSource, MessageSink):
CLEANERS = [
MalwareDetachedDirCleaner,
OutdatedHistoryCleaner,
OutdatedScansCleaner,
OutdatedHitsCleaner,
]
def __init__(self):
self._loop = None
self._sink = None
self._tasks = []
async def create_source(self, loop, sink):
self._loop = loop
self._sink = sink
for cleaner in self.CLEANERS:
self._tasks.append(
self._loop.create_task(
recurring_check(
check_lock,
check_period_first=True,
check_lock_period=cleaner.PERIOD,
lock_file=cleaner.LOCK_FILE,
)(cleaner.cleanup)()
)
)
async def create_sink(self, loop):
pass
@expect(MessageType.CheckDetachedScans)
async def check_detached_scans(self, _):
await UncompletedScansCleaner.cleanup()
logger.info("Detached scans checked")
async def shutdown(self):
for task in self._tasks:
task.cancel()
for task in self._tasks:
# no need to suppress CancelledError because
# recurring_check() catches it already
await task
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