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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Tests for the file entry implementation using the SleuthKit (TSK)."""
from __future__ import unicode_literals
import unittest
import pytsk3
from dfvfs.path import os_path_spec
from dfvfs.path import qcow_path_spec
from dfvfs.path import tsk_path_spec
from dfvfs.resolver import context
from dfvfs.vfs import tsk_file_entry
from dfvfs.vfs import tsk_file_system
from tests import test_lib as shared_test_lib
class TSKTimeTest(unittest.TestCase):
"""Tests for the SleuthKit timestamp."""
def testCopyFromDateTimeString(self):
"""Tests the CopyFromDateTimeString function."""
tsk_time_object = tsk_file_entry.TSKTime()
if pytsk3.TSK_VERSION_NUM >= 0x040200ff:
expected_fraction_of_second = 546875000
else:
expected_fraction_of_second = 5468750
tsk_time_object.CopyFromDateTimeString('2010-08-12 21:06:31.546875')
self.assertEqual(tsk_time_object.timestamp, 1281647191)
self.assertEqual(
tsk_time_object.fraction_of_second, expected_fraction_of_second)
def testCopyToStatTimeTuple(self):
"""Tests the CopyToStatTimeTuple function."""
if pytsk3.TSK_VERSION_NUM >= 0x040200ff:
fraction_of_second = 546875000
else:
fraction_of_second = 5468750
tsk_time_object = tsk_file_entry.TSKTime(
fraction_of_second=fraction_of_second, timestamp=1281643591)
stat_time_tuple = tsk_time_object.CopyToStatTimeTuple()
self.assertEqual(stat_time_tuple, (1281643591, 5468750))
tsk_time_object = tsk_file_entry.TSKTime()
stat_time_tuple = tsk_time_object.CopyToStatTimeTuple()
self.assertEqual(stat_time_tuple, (None, None))
def testCopyToDateTimeString(self):
"""Tests the CopyToDateTimeString function."""
if pytsk3.TSK_VERSION_NUM >= 0x040200ff:
fraction_of_second = 546875000
else:
fraction_of_second = 5468750
tsk_time_object = tsk_file_entry.TSKTime(
fraction_of_second=fraction_of_second, timestamp=1281643591)
if pytsk3.TSK_VERSION_NUM >= 0x040200ff:
expected_date_time_string = '2010-08-12 20:06:31.546875000'
else:
expected_date_time_string = '2010-08-12 20:06:31.5468750'
date_time_string = tsk_time_object.CopyToDateTimeString()
self.assertEqual(date_time_string, expected_date_time_string)
tsk_time_object = tsk_file_entry.TSKTime()
date_time_string = tsk_time_object.CopyToDateTimeString()
self.assertIsNone(date_time_string)
def testGetDate(self):
"""Tests the GetDate function."""
if pytsk3.TSK_VERSION_NUM >= 0x040200ff:
fraction_of_second = 546875000
else:
fraction_of_second = 5468750
tsk_time_object = tsk_file_entry.TSKTime(
fraction_of_second=fraction_of_second, timestamp=1281643591)
date_tuple = tsk_time_object.GetDate()
self.assertEqual(date_tuple, (2010, 8, 12))
tsk_time_object = tsk_file_entry.TSKTime()
date_tuple = tsk_time_object.GetDate()
self.assertEqual(date_tuple, (None, None, None))
def testGetPlasoTimestamp(self):
"""Tests the GetPlasoTimestamp function."""
tsk_time_object = tsk_file_entry.TSKTime(
fraction_of_second=546875000, timestamp=1281643591)
micro_posix_timestamp = tsk_time_object.GetPlasoTimestamp()
self.assertEqual(micro_posix_timestamp, 1281643591546875)
tsk_time_object = tsk_file_entry.TSKTime()
micro_posix_timestamp = tsk_time_object.GetPlasoTimestamp()
self.assertIsNone(micro_posix_timestamp)
@shared_test_lib.skipUnlessHasTestFile(['ímynd.dd'])
class TSKFileEntryTestExt2(shared_test_lib.BaseTestCase):
"""Tests the SleuthKit (TSK) file entry on ext2."""
def setUp(self):
"""Sets up the needed objects used throughout the test."""
self._resolver_context = context.Context()
test_file = self._GetTestFilePath(['ímynd.dd'])
self._os_path_spec = os_path_spec.OSPathSpec(location=test_file)
self._tsk_path_spec = tsk_path_spec.TSKPathSpec(
location='/', parent=self._os_path_spec)
self._file_system = tsk_file_system.TSKFileSystem(self._resolver_context)
self._file_system.Open(self._tsk_path_spec)
def tearDown(self):
"""Cleans up the needed objects used throughout the test."""
self._file_system.Close()
def testInitialize(self):
"""Tests the __init__ function."""
file_entry = tsk_file_entry.TSKFileEntry(
self._resolver_context, self._file_system, self._tsk_path_spec)
self.assertIsNotNone(file_entry)
def testBackupTime(self):
"""Test the backup_time property."""
test_location = '/a_directory/another_file'
path_spec = tsk_path_spec.TSKPathSpec(
inode=16, location=test_location, parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNone(file_entry.backup_time)
def testDeletionTime(self):
"""Test the deletion_time property."""
test_location = '/a_directory/another_file'
path_spec = tsk_path_spec.TSKPathSpec(
inode=16, location=test_location, parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry.deletion_time)
def testGetFileEntryByPathSpec(self):
"""Tests the GetFileEntryByPathSpec function."""
path_spec = tsk_path_spec.TSKPathSpec(inode=15, parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
def testGetLinkedFileEntry(self):
"""Tests the GetLinkedFileEntry function."""
test_location = '/a_link'
path_spec = tsk_path_spec.TSKPathSpec(
inode=13, location=test_location, parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
linked_file_entry = file_entry.GetLinkedFileEntry()
self.assertIsNotNone(linked_file_entry)
self.assertEqual(linked_file_entry.name, 'another_file')
def testGetParentFileEntry(self):
"""Tests the GetParentFileEntry function."""
test_location = '/a_directory/another_file'
path_spec = tsk_path_spec.TSKPathSpec(
inode=16, location=test_location, parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
parent_file_entry = file_entry.GetParentFileEntry()
self.assertIsNotNone(parent_file_entry)
self.assertEqual(parent_file_entry.name, 'a_directory')
def testGetStat(self):
"""Tests the GetStat function."""
test_location = '/a_directory/another_file'
path_spec = tsk_path_spec.TSKPathSpec(
inode=16, location=test_location, parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
stat_object = file_entry.GetStat()
self.assertIsNotNone(stat_object)
self.assertEqual(stat_object.type, stat_object.TYPE_FILE)
self.assertEqual(stat_object.size, 22)
self.assertEqual(stat_object.mode, 384)
self.assertEqual(stat_object.uid, 151107)
self.assertEqual(stat_object.gid, 5000)
self.assertEqual(stat_object.atime, 1337961563)
self.assertFalse(hasattr(stat_object, 'atime_nano'))
self.assertEqual(stat_object.ctime, 1337961563)
self.assertFalse(hasattr(stat_object, 'ctime_nano'))
# EXT2 has no crtime timestamp.
self.assertFalse(hasattr(stat_object, 'crtime'))
self.assertFalse(hasattr(stat_object, 'crtime_nano'))
self.assertEqual(stat_object.mtime, 1337961563)
self.assertFalse(hasattr(stat_object, 'mtime_nano'))
def testIsFunctions(self):
"""Tests the Is? functions."""
test_location = '/a_directory/another_file'
path_spec = tsk_path_spec.TSKPathSpec(
inode=16, location=test_location, parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
self.assertFalse(file_entry.IsRoot())
self.assertFalse(file_entry.IsVirtual())
self.assertTrue(file_entry.IsAllocated())
self.assertFalse(file_entry.IsDevice())
self.assertFalse(file_entry.IsDirectory())
self.assertTrue(file_entry.IsFile())
self.assertFalse(file_entry.IsLink())
self.assertFalse(file_entry.IsPipe())
self.assertFalse(file_entry.IsSocket())
test_location = '/a_directory'
path_spec = tsk_path_spec.TSKPathSpec(
inode=12, location=test_location, parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
self.assertFalse(file_entry.IsRoot())
self.assertFalse(file_entry.IsVirtual())
self.assertTrue(file_entry.IsAllocated())
self.assertFalse(file_entry.IsDevice())
self.assertTrue(file_entry.IsDirectory())
self.assertFalse(file_entry.IsFile())
self.assertFalse(file_entry.IsLink())
self.assertFalse(file_entry.IsPipe())
self.assertFalse(file_entry.IsSocket())
path_spec = tsk_path_spec.TSKPathSpec(
location='/', parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
self.assertTrue(file_entry.IsRoot())
self.assertFalse(file_entry.IsVirtual())
self.assertTrue(file_entry.IsAllocated())
self.assertFalse(file_entry.IsDevice())
self.assertTrue(file_entry.IsDirectory())
self.assertFalse(file_entry.IsFile())
self.assertFalse(file_entry.IsLink())
self.assertFalse(file_entry.IsPipe())
self.assertFalse(file_entry.IsSocket())
def testSubFileEntries(self):
"""Tests the number_of_sub_file_entries and sub_file_entries properties."""
path_spec = tsk_path_spec.TSKPathSpec(
location='/', parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.number_of_sub_file_entries, 5)
# Note that passwords.txt~ is currently ignored by dfvfs, since
# its directory entry has no pytsk3.TSK_FS_META object.
expected_sub_file_entry_names = [
'a_directory',
'a_link',
'lost+found',
'passwords.txt',
'$OrphanFiles']
sub_file_entry_names = []
for sub_file_entry in file_entry.sub_file_entries:
sub_file_entry_names.append(sub_file_entry.name)
self.assertEqual(
len(sub_file_entry_names), len(expected_sub_file_entry_names))
self.assertEqual(
sorted(sub_file_entry_names), sorted(expected_sub_file_entry_names))
def testDataStreams(self):
"""Tests the data streams functionality."""
test_location = '/a_directory/another_file'
path_spec = tsk_path_spec.TSKPathSpec(
inode=16, location=test_location, parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.number_of_data_streams, 1)
data_stream_names = []
for data_stream in file_entry.data_streams:
data_stream_names.append(data_stream.name)
self.assertEqual(data_stream_names, [''])
test_location = '/a_directory'
path_spec = tsk_path_spec.TSKPathSpec(
inode=12, location=test_location, parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.number_of_data_streams, 0)
data_stream_names = []
for data_stream in file_entry.data_streams:
data_stream_names.append(data_stream.name)
self.assertEqual(data_stream_names, [])
def testGetDataStream(self):
"""Tests the GetDataStream function."""
test_location = '/a_directory/another_file'
path_spec = tsk_path_spec.TSKPathSpec(
inode=16, location=test_location, parent=self._os_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
data_stream_name = ''
data_stream = file_entry.GetDataStream(data_stream_name)
self.assertIsNotNone(data_stream)
class TSKFileEntryTestHFS(unittest.TestCase):
"""Tests the SleuthKit (TSK) file entry on HFS."""
# TODO: implement.
@shared_test_lib.skipUnlessHasTestFile(['vsstest.qcow2'])
class TSKFileEntryTestNTFS(shared_test_lib.BaseTestCase):
"""Tests the SleuthKit (TSK) file entry on NTFS."""
def setUp(self):
"""Sets up the needed objects used throughout the test."""
self._resolver_context = context.Context()
test_file = self._GetTestFilePath(['vsstest.qcow2'])
path_spec = os_path_spec.OSPathSpec(location=test_file)
self._qcow_path_spec = qcow_path_spec.QCOWPathSpec(parent=path_spec)
self._tsk_path_spec = tsk_path_spec.TSKPathSpec(
location='\\', parent=self._qcow_path_spec)
self._file_system = tsk_file_system.TSKFileSystem(self._resolver_context)
self._file_system.Open(self._tsk_path_spec)
def tearDown(self):
"""Cleans up the needed objects used throughout the test."""
self._file_system.Close()
def testBackupTime(self):
"""Test the backup_time property."""
test_location = (
'\\System Volume Information\\{3808876b-c176-4e48-b7ae-04046e6cc752}')
path_spec = tsk_path_spec.TSKPathSpec(
inode=38, location=test_location, parent=self._qcow_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNone(file_entry.backup_time)
def testDeletionTime(self):
"""Test the deletion_time property."""
test_location = (
'\\System Volume Information\\{3808876b-c176-4e48-b7ae-04046e6cc752}')
path_spec = tsk_path_spec.TSKPathSpec(
inode=38, location=test_location, parent=self._qcow_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNone(file_entry.deletion_time)
def testGetStat(self):
"""Tests the GetStat function."""
test_location = (
'\\System Volume Information\\{3808876b-c176-4e48-b7ae-04046e6cc752}')
path_spec = tsk_path_spec.TSKPathSpec(
inode=38, location=test_location, parent=self._qcow_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
stat_object = file_entry.GetStat()
self.assertIsNotNone(stat_object)
self.assertEqual(stat_object.type, stat_object.TYPE_FILE)
self.assertEqual(stat_object.size, 65536)
self.assertEqual(stat_object.mode, 365)
self.assertEqual(stat_object.uid, 0)
self.assertEqual(stat_object.gid, 0)
self.assertEqual(stat_object.atime, 1386052509)
self.assertEqual(stat_object.atime_nano, 5023783)
self.assertEqual(stat_object.ctime, 1386052509)
self.assertEqual(stat_object.ctime_nano, 5179783)
self.assertEqual(stat_object.crtime, 1386052509)
self.assertEqual(stat_object.crtime_nano, 5023783)
self.assertEqual(stat_object.mtime, 1386052509)
self.assertEqual(stat_object.mtime_nano, 5179783)
def testAttributes(self):
"""Tests the number_of_attributes property."""
test_location = (
'\\System Volume Information\\{3808876b-c176-4e48-b7ae-04046e6cc752}')
path_spec = tsk_path_spec.TSKPathSpec(
inode=38, location=test_location, parent=self._qcow_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.number_of_attributes, 4)
def testDataStream(self):
"""Tests the number_of_data_streams and data_streams properties."""
test_location = (
'\\System Volume Information\\{3808876b-c176-4e48-b7ae-04046e6cc752}')
path_spec = tsk_path_spec.TSKPathSpec(
inode=38, location=test_location, parent=self._qcow_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.number_of_data_streams, 1)
data_stream_names = []
for data_stream in file_entry.data_streams:
data_stream_names.append(data_stream.name)
self.assertEqual(data_stream_names, [''])
path_spec = tsk_path_spec.TSKPathSpec(
inode=36, location='\\System Volume Information',
parent=self._qcow_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.number_of_data_streams, 0)
data_stream_names = []
for data_stream in file_entry.data_streams:
data_stream_names.append(data_stream.name)
self.assertEqual(data_stream_names, [])
test_location = '\\$Extend\\$RmMetadata\\$Repair'
path_spec = tsk_path_spec.TSKPathSpec(
inode=28, location=test_location, parent=self._qcow_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
self.assertEqual(file_entry.number_of_data_streams, 2)
data_stream_names = []
for data_stream in file_entry.data_streams:
data_stream_names.append(data_stream.name)
self.assertEqual(sorted(data_stream_names), sorted(['', '$Config']))
def testGetDataStream(self):
"""Tests the retrieve data stream functionality."""
test_location = (
'\\System Volume Information\\{3808876b-c176-4e48-b7ae-04046e6cc752}')
path_spec = tsk_path_spec.TSKPathSpec(
inode=38, location=test_location, parent=self._qcow_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
data_stream_name = ''
data_stream = file_entry.GetDataStream(data_stream_name)
self.assertIsNotNone(data_stream)
self.assertEqual(data_stream.name, data_stream_name)
data_stream = file_entry.GetDataStream('bogus')
self.assertIsNone(data_stream)
test_location = '\\$Extend\\$RmMetadata\\$Repair'
path_spec = tsk_path_spec.TSKPathSpec(
inode=28, location=test_location, parent=self._qcow_path_spec)
file_entry = self._file_system.GetFileEntryByPathSpec(path_spec)
self.assertIsNotNone(file_entry)
data_stream_name = '$Config'
data_stream = file_entry.GetDataStream(data_stream_name)
self.assertIsNotNone(data_stream)
self.assertEqual(data_stream.name, data_stream_name)
if __name__ == '__main__':
unittest.main()
|
