Source code for plaso.parsers.czip

# -*- coding: utf-8 -*-
"""This file contains a parser for compound ZIP files."""

import zipfile

from plaso.lib import errors
from plaso.parsers import interface
from plaso.parsers import manager


[docs]class CompoundZIPParser(interface.FileObjectParser): """Shared functionality for parsing compound ZIP files. Compound ZIP files are ZIP files used as containers to create another file format, as opposed to archives of unrelated files. """ NAME = 'czip' DATA_FORMAT = 'Compound ZIP file' _plugin_classes = {}
[docs] def ParseFileObject(self, parser_mediator, file_object): """Parses a compound ZIP file-like object. Args: parser_mediator (ParserMediator): mediates interactions between parsers and other components, such as storage and dfvfs. file_object (dfvfs.FileIO): a file-like object. Raises: UnableToParseFile: when the file cannot be parsed. """ display_name = parser_mediator.GetDisplayName() if not zipfile.is_zipfile(file_object): raise errors.UnableToParseFile( '[{0:s}] unable to parse file: {1:s} with error: {2:s}'.format( self.NAME, display_name, 'Not a Zip file.')) try: zip_file = zipfile.ZipFile(file_object, 'r', allowZip64=True) # Some non-ZIP files return true for is_zipfile but will fail with another # error like a negative seek (IOError). Note that this function can raise # many different exceptions. except Exception as exception: # pylint: disable=broad-except raise errors.UnableToParseFile( '[{0:s}] unable to parse file: {1:s} with error: {2!s}'.format( self.NAME, display_name, exception)) for plugin in self._plugins: if parser_mediator.abort: break if not plugin.CheckRequiredPaths(zip_file): continue try: plugin.UpdateChainAndProcess(parser_mediator, zip_file=zip_file) except Exception as exception: # pylint: disable=broad-except parser_mediator.ProduceExtractionWarning(( 'plugin: {0:s} unable to parse ZIP file: {1:s} with error: ' '{2!s}').format(plugin.NAME, display_name, exception)) zip_file.close()
manager.ParsersManager.RegisterParser(CompoundZIPParser)