115 lines
4.3 KiB
Python
115 lines
4.3 KiB
Python
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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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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"""Parser for the Mac OS X Document Versions files."""
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from plaso.events import time_events
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from plaso.lib import eventdata
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from plaso.parsers import sqlite
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from plaso.parsers.sqlite_plugins import interface
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__author__ = 'Joaquin Moreno Garijo (Joaquin.MorenoGarijo.2013@live.rhul.ac.uk)'
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class MacDocumentVersionsEvent(time_events.PosixTimeEvent):
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"""Convenience class for a entry from the Document Versions database."""
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DATA_TYPE = 'mac:document_versions:file'
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def __init__(self, posix_time, name, path, version_path, last_time, user_sid):
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"""Initializes the event object.
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Args:
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posix_time: The POSIX time value.
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name: name of the original file.
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path: path from the original file.
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version_path: path to the version copy of the original file.
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last_time: the system user ID of the user that opened the file.
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user_sid: identification user ID that open the file.
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"""
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super(MacDocumentVersionsEvent, self).__init__(
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posix_time, eventdata.EventTimestamp.CREATION_TIME)
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self.name = name
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self.path = path
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self.version_path = version_path
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# TODO: shouldn't this be a separate event?
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self.last_time = last_time
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self.user_sid = unicode(user_sid)
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class MacDocumentVersionsPlugin(interface.SQLitePlugin):
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"""Parse the Mac OS X Document Versions SQLite database.."""
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NAME = 'mac_document_versions'
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DESCRIPTION = u'Parser for document revisions SQLite database files.'
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# Define the needed queries.
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# name: name from the original file.
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# path: path from the original file (include the file)
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# last_time: last time when the file was replicated.
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# version_path: path where the version is stored.
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# version_time: the timestamp when the version was created.
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QUERIES = [
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(('SELECT f.file_name AS name, f.file_path AS path, '
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'f.file_last_seen AS last_time, g.generation_path AS version_path, '
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'g.generation_add_time AS version_time FROM files f, generations g '
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'WHERE f.file_storage_id = g.generation_storage_id;'),
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'DocumentVersionsRow')]
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# The required tables for the query.
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REQUIRED_TABLES = frozenset(['files', 'generations'])
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# The SQL field path is the relative path from DocumentRevisions.
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# For this reason the Path to the program has to be added at the beginning.
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ROOT_VERSION_PATH = u'/.DocumentRevisions-V100/'
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def DocumentVersionsRow(
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self, parser_context, row, file_entry=None, parser_chain=None, query=None,
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**unused_kwargs):
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"""Parses a document versions row.
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Args:
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parser_context: A parser context object (instance of ParserContext).
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row: The row resulting from the query.
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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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query: Optional query string. The default is None.
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"""
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# version_path = "PerUser/UserID/xx/client_id/version_file"
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# where PerUser and UserID are a real directories.
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paths = row['version_path'].split(u'/')
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if len(paths) < 2 or not paths[1].isdigit():
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user_sid = None
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else:
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user_sid = paths[1]
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version_path = self.ROOT_VERSION_PATH + row['version_path']
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path, _, _ = row['path'].rpartition(u'/')
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event_object = MacDocumentVersionsEvent(
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row['version_time'], row['name'], path, version_path,
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row['last_time'], user_sid)
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parser_context.ProduceEvent(
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event_object, query=query, parser_chain=parser_chain,
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file_entry=file_entry)
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sqlite.SQLiteParser.RegisterPlugin(MacDocumentVersionsPlugin)
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