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　晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 . Prv8 Shell

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Directory : /opt/imunify360/venv/lib/python3.11/site-packages/imav/malwarelib/scan/

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Current File : //opt/imunify360/venv/lib/python3.11/site-packages/imav/malwarelib/scan/app_version_detector.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/>.

Copyright © 2019 Cloud Linux Software Inc.

This software is also available under ImunifyAV commercial license,
see <https://www.imunify360.com/legal/eula>
"""
import subprocess
from asyncio import CancelledError
from contextlib import suppress
from typing import Iterator

from defence360agent.contracts.config import FileBasedResourceLimits
from imav.malwarelib.config import APP_VERSION_DETECTOR_INTENSITY_KEY
from imav.malwarelib.scan import ScanFailedError
from defence360agent.utils import resource_limits


class AVDExecutionError(ScanFailedError):
    pass


class AppVersionDetector:
    _cmd = [
        "/opt/app-version-detector/app-version-detector-wrapper.sh",
        # DB is hardcoded in MDS
        (
            "--sqlite-db-report="
            "/var/lib/cloudlinux-app-version-detector/components_versions.sqlite3"  # noqa: E501
        ),
        "--stdin-dirs",
        "--paths-in-base64",
        "--scan-depth=3",
    ]

    def __init__(self):
        self._proc = None

    async def start(self, paths: Iterator[bytes]) -> None:
        stdin = b"\n".join(paths)
        self._proc = await resource_limits.create_subprocess(
            self._cmd,
            intensity_cpu=FileBasedResourceLimits.CPU,
            intensity_io=FileBasedResourceLimits.IO,
            stdout=subprocess.PIPE,
            stderr=subprocess.PIPE,
            stdin=subprocess.PIPE,
            key=APP_VERSION_DETECTOR_INTENSITY_KEY,
        )

        out = err = None
        try:
            out, err = await self._proc.communicate(input=stdin)
        except CancelledError:
            with suppress(ProcessLookupError):
                self._proc.kill()
                await self._proc.wait()

        if self._proc.returncode != 0:
            raise AVDExecutionError(
                message="AVD exited with non-zero return code",
                command=self._cmd,
                return_code=self._proc.returncode,
                out=out,
                err=err,
                path=None,
                scan_id=None,
            )

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