87 lines
3.1 KiB
Python
87 lines
3.1 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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#
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# Copyright 2014 The Plaso Project Authors.
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# Please see the AUTHORS file for details on individual authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""This file contains a TimeMachine plist plugin in Plaso."""
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import construct
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from plaso.events import plist_event
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from plaso.parsers import plist
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from plaso.parsers.plist_plugins import interface
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__author__ = 'Joaquin Moreno Garijo (Joaquin.MorenoGarijo.2013@live.rhul.ac.uk)'
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class TimeMachinePlugin(interface.PlistPlugin):
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"""Basic plugin to extract time machine hardisk and the backups."""
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NAME = 'plist_timemachine'
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DESCRIPTION = u'Parser for TimeMachine plist files.'
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PLIST_PATH = 'com.apple.TimeMachine.plist'
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PLIST_KEYS = frozenset(['Destinations', 'RootVolumeUUID'])
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# Generated events:
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# DestinationID: remote UUID hard disk where the backup is done.
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# BackupAlias: structure that contains the extra information from the
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# destinationID.
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# SnapshotDates: list of the backup dates.
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TM_BACKUP_ALIAS = construct.Struct(
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'tm_backup_alias',
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construct.Padding(10),
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construct.PascalString('value', length_field=construct.UBInt8('length')))
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def GetEntries(
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self, parser_context, file_entry=None, parser_chain=None, match=None,
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**unused_kwargs):
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"""Extracts relevant TimeMachine entries.
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Args:
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parser_context: A parser context object (instance of ParserContext).
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file_entry: Optional file entry object (instance of dfvfs.FileEntry).
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The default is None.
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parser_chain: Optional string containing the parsing chain up to this
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point. The default is None.
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match: Optional dictionary containing keys extracted from PLIST_KEYS.
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The default is None.
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"""
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root = '/Destinations'
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key = 'item/SnapshotDates'
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# For each TimeMachine devices.
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for destination in match['Destinations']:
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hd_uuid = destination['DestinationID']
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if not hd_uuid:
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hd_uuid = u'Unknown device'
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alias = destination['BackupAlias']
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try:
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alias = self.TM_BACKUP_ALIAS.parse(alias).value
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except construct.FieldError:
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alias = u'Unknown alias'
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# For each Backup.
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for timestamp in destination['SnapshotDates']:
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description = u'TimeMachine Backup in {0:s} ({1:s})'.format(
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alias, hd_uuid)
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event_object = plist_event.PlistEvent(root, key, timestamp, description)
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parser_context.ProduceEvent(
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event_object, parser_chain=parser_chain, file_entry=file_entry)
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plist.PlistParser.RegisterPlugin(TimeMachinePlugin)
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