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__pycache__	-	Open
cleaner.py	2.94 MB	View DL Edit
detached.py	14.94 MB	View DL Edit
report.py	6.93 MB	View DL Edit
restore.py	4.04 MB	View DL Edit
scanner.py	4.13 MB	View DL Edit
__init__.py	846 B	View DL Edit

Edit file: /opt/imunify360/venv/lib/python3.11/site-packages/imav/malwarelib/scan/mds/restore.py

"""
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/>.

This software is also available under ImunifyAV commercial license,
see <https://www.imunify360.com/legal/eula>
"""
import hashlib
import logging
import uuid
from typing import cast

from defence360agent.contracts.config import Malware, MalwareScanIntensity
from defence360agent.internals.the_sink import TheSink
from defence360agent.utils import resource_limits
from imav.contracts.messages import MalwareDatabaseRestoreTask
from imav.malwarelib.cleanup.types import CleanupRevertInitiator
from imav.malwarelib.config import (
    RESTORE_ORIGINAL_INTENSITY_KEY,
    MalwareScanResourceType,
)
from imav.malwarelib.model import MalwareHit
from imav.malwarelib.scan.mds import MDS_PATH
from imav.malwarelib.scan.mds.detached import MDSDetachedRestoreDir
from imav.malwarelib.utils import hash_path

logger = logging.getLogger(__name__)

class MalwareDatabaseRestore:
    def __init__(
        self,
        *,
        app_name: str,
        path: str,
        signature_id: str | None = None,
        restore_id: str | None = None,
    ):
        self.app_name = app_name
        self.path = path
        self.signature_id = signature_id
        self.restore_id = restore_id or uuid.uuid4().hex

def cmd(self, work_dir: MDSDetachedRestoreDir):
        command = [
            "/opt/ai-bolit/wrapper",
            MDS_PATH,
            "--path",
            self.path,
            "--app-name",
            self.app_name,
            "--report-file",
            str(work_dir.report_file),
            "--detached",
            self.restore_id,
            "--progress",
            str(work_dir.progress_file),
            "--db-timeout",
            str(Malware.MDS_DB_TIMEOUT),
        ]

if self.signature_id:
            command += ["--restore-sig-id", self.signature_id]
        else:
            command += ["--restore", storage_path(self.path, self.app_name)]
        return command

async def restore(self):
        with MDSDetachedRestoreDir(self.restore_id) as work_dir:
            cmd = self.cmd(work_dir)

with (
                work_dir.log_file.open(mode="w") as l_f,
                work_dir.err_file.open(mode="w") as e_f,
            ):
                logger.info("Running MDS Restore with: %s", cmd)
                await resource_limits.create_subprocess(
                    cmd,
                    intensity_cpu=MalwareScanIntensity.CPU,
                    intensity_io=MalwareScanIntensity.IO,
                    start_new_session=True,
                    stdout=l_f,
                    stderr=e_f,
                    cwd=str(work_dir),
                    key=RESTORE_ORIGINAL_INTENSITY_KEY,
                )

def storage_path(path: str, app_name: str):
    return "/var/imunify360/cleanup_storage/" + hash_path(
        path + app_name, hash_provider=hashlib.sha384
    )

async def restore_hits(
    hits: list[MalwareHit],
    sink: TheSink,
    initiator: CleanupRevertInitiator | None = None,
):
    db_hits = [
        hit
        for hit in hits
        if hit.resource_type == MalwareScanResourceType.DB.value
    ]

hit: MalwareHit
    for hit in db_hits:
        await sink.process_message(
            MalwareDatabaseRestoreTask(
                path=cast(str, hit.orig_file),
                app_name=cast(str, hit.app_name),
                signature_id=hit.signature_id
                if initiator == CleanupRevertInitiator.IMUNIFY
                else None,
            )
        )

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