Viewing file:  restore_from_backup.py (2.42 KB) -rw-r--r--
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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 datetime
from logging import getLogger
from typing import Tuple
from imav.malwarelib.config import MalwareScanType
from imav.malwarelib.scan.scanner import MalwareScanner
from defence360agent.contracts.config import BackupRestore
logger = getLogger(__name__)
def _get_scan_function(sink, tmpdir=None):
async def _custom_scan_function(files: list) -> list:
"""Used for checking files from backups before their recovering"""
if not files:
return []
still_infected = []
scanner = MalwareScanner(sink=sink, tmpdir=tmpdir)
scanner.start(
files,
scan_type=MalwareScanType.RESTORE_FROM_BACKUP,
use_filters=False,
)
result = await scanner.async_wait()
if result is not None:
still_infected = [r["file_name"] for r in result["results"]]
return still_infected
return _custom_scan_function
async def restore_files(
files: list, until: datetime, sink, tmp_dir=None
) -> Tuple[list, list]:
from restore_infected.restore import async_restore_infected
backend = BackupRestore.backup_system()
assert backend, "Backup system is not selected!"
restored, not_restored = [], files
try:
scan_function = _get_scan_function(sink)
restored, not_restored = await async_restore_infected(
backend=backend,
files=files,
until=until,
scan_func=scan_function,
tmp_dir=tmp_dir,
)
except asyncio.CancelledError:
raise
except Exception:
logger.exception("Error during restore from backup")
return restored, not_restored
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