\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5×\D6?\BDê\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2€ \00 $\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4ê\E9\F2á\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// File Manager

File Manager

Path: /opt/imunify360/venv/lib/python3.11/site-packages/imav/patchman/fs_scanner/

Viewing File: main.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>
"""
# TODO: The script should be able to process a large number of files and should be optimized for speed
# TODO: It should not use more than X GB of memory
import argparse
import logging
import os

from imav.patchman.fs_scanner.utils import HashCalculator
from imav.patchman.fs_scanner.db import DB
from imav.patchman.fs_scanner.matcher import (
    PatchDependenciesMatcher,
    VersionsMatcher,
    HashesMatcher,
)
from imav.patchman.fs_scanner.utils import (
    all_possible_relative_paths,
    dir_traverse_generator,
)


logger = logging.getLogger(__name__)


class ReadableFileAction(argparse.Action):
    """
    Check that file exists and is readable
    """

    def __call__(self, parser, namespace, values, option_string=None):
        if not os.path.isfile(values):
            raise ValueError(f"{values} does not exist")
        if not os.access(values, os.R_OK):
            raise ValueError(f"{values} is not readable")
        setattr(namespace, self.dest, values)


class WritableFilePathAction(argparse.Action):
    """
    Check that file path is writable
    """

    def __call__(self, parser, namespace, values, option_string=None):
        dir_name = os.path.dirname(values) or "."
        if not os.access(dir_name, os.W_OK):
            raise ValueError(f"Directory {dir_name} is not writable")
        setattr(namespace, self.dest, values)


def main():
    argparser = argparse.ArgumentParser()
    argparser.add_argument(
        "version_identifiers",
        type=str,
        action=ReadableFileAction,
        help="Path to file with version_identifiers",
    )
    argparser.add_argument(
        "patch_deps",
        type=str,
        action=ReadableFileAction,
        help="Path to file with patch_dependencies",
    )
    argparser.add_argument(
        "hashes",
        type=str,
        action=ReadableFileAction,
        help="Path to file with hashes",
    )
    argparser.add_argument(
        "target_dir",
        type=os.path.abspath,
        help="Path to target dir",
    )
    argparser.add_argument(
        "--output",
        "-o",
        type=str,
        action=WritableFilePathAction,
        help="Path to output sqlite db file",
        required=True,
    )
    argparser.add_argument(
        "--algorithm",
        type=str,
        choices=HashCalculator.HASHING_ALGORITHMS.keys(),
        default="md5",
        help="Hashing algorithm",
    )
    args = argparser.parse_args()

    if not os.path.isdir(args.target_dir):
        logger.info(
            "Target scan directory %s does not exist or is not a "
            "directory; skipping",
            args.target_dir,
        )
        return

    versions_matcher = VersionsMatcher(args.version_identifiers)
    deps_matcher = PatchDependenciesMatcher(args.patch_deps)
    hash_calculator = HashCalculator(args.algorithm)
    hashes_matcher = HashesMatcher(args.hashes)

    with DB(args.output) as db:
        for file_path in dir_traverse_generator(args.target_dir):
            for relative_path in all_possible_relative_paths(
                file_path, args.target_dir
            ):
                version_matched = versions_matcher.match_and_save(
                    file_path, relative_path, db, hash_calculator
                )
                deps_matched = deps_matcher.match_and_save(
                    file_path, relative_path, db, hash_calculator
                )
                hashes_matched = hashes_matcher.match_and_save(
                    file_path, relative_path, db, hash_calculator
                )
                if version_matched and deps_matched and hashes_matched:
                    # no need to check other possible relative paths if we already have all matches
                    break


if __name__ == "__main__":
    main()