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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Tests for the image export CLI tool."""
from __future__ import unicode_literals
import io
import os
import unittest
from dfvfs.lib import definitions as dfvfs_definitions
from dfvfs.path import factory as path_spec_factory
from dfvfs.resolver import resolver as path_spec_resolver
from plaso.cli import image_export_tool
from plaso.lib import errors
from tests import test_lib as shared_test_lib
from tests.cli import test_lib
class ImageExportToolTest(test_lib.CLIToolTestCase):
"""Tests for the image export CLI tool."""
# pylint: disable=protected-access
def _GetTestScanNode(self, scan_context):
"""Retrieves the scan node for testing.
Retrieves the first scan node, from the root upwards, with more or less
than 1 sub node.
Args:
scan_context (dfvfs.SourceScanContext): scan context.
Returns:
dfvfs.SourceScanNode: scan node.
"""
scan_node = scan_context.GetRootScanNode()
while len(scan_node.sub_nodes) == 1:
scan_node = scan_node.sub_nodes[0]
return scan_node
def _RecursiveList(self, path):
"""Recursively lists a file or directory.
Args:
path (str): path of the file or directory to list.
Returns:
list[str]: names of files and sub directories within the path.
"""
results = []
for sub_path, _, files in os.walk(path):
if sub_path != path:
results.append(sub_path)
for file_entry in files:
results.append(os.path.join(sub_path, file_entry))
return results
@shared_test_lib.skipUnlessHasTestFile(['ímynd.dd'])
def testCalculateDigestHash(self):
"""Tests the _CalculateDigestHash function."""
test_tool = image_export_tool.ImageExportTool()
test_path = self._GetTestFilePath(['ímynd.dd'])
os_path_spec = path_spec_factory.Factory.NewPathSpec(
dfvfs_definitions.TYPE_INDICATOR_OS, location=test_path)
tsk_path_spec = path_spec_factory.Factory.NewPathSpec(
dfvfs_definitions.TYPE_INDICATOR_TSK, inode=16,
location='/a_directory/another_file', parent=os_path_spec)
file_entry = path_spec_resolver.Resolver.OpenFileEntry(tsk_path_spec)
digest_hash = test_tool._CalculateDigestHash(file_entry, '')
expected_digest_hash = (
'c7fbc0e821c0871805a99584c6a384533909f68a6bbe9a2a687d28d9f3b10c16')
self.assertEqual(digest_hash, expected_digest_hash)
test_path = self._GetTestFilePath(['ímynd.dd'])
os_path_spec = path_spec_factory.Factory.NewPathSpec(
dfvfs_definitions.TYPE_INDICATOR_OS, location=test_path)
tsk_path_spec = path_spec_factory.Factory.NewPathSpec(
dfvfs_definitions.TYPE_INDICATOR_TSK, inode=12,
location='/a_directory', parent=os_path_spec)
file_entry = path_spec_resolver.Resolver.OpenFileEntry(tsk_path_spec)
with self.assertRaises(IOError):
test_tool._CalculateDigestHash(file_entry, '')
# TODO: add tests for _CreateSanitizedDestination.
# TODO: add tests for _Extract.
@shared_test_lib.skipUnlessHasTestFile(['ímynd.dd'])
def testExtractDataStream(self):
"""Tests the _ExtractDataStream function."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool()
test_path = self._GetTestFilePath(['ímynd.dd'])
os_path_spec = path_spec_factory.Factory.NewPathSpec(
dfvfs_definitions.TYPE_INDICATOR_OS, location=test_path)
tsk_path_spec = path_spec_factory.Factory.NewPathSpec(
dfvfs_definitions.TYPE_INDICATOR_TSK, inode=16,
location='/a_directory/another_file', parent=os_path_spec)
file_entry = path_spec_resolver.Resolver.OpenFileEntry(tsk_path_spec)
with shared_test_lib.TempDirectory() as temp_directory:
test_tool._ExtractDataStream(
file_entry, '', temp_directory, output_writer)
@shared_test_lib.skipUnlessHasTestFile(['ímynd.dd'])
def testExtractFileEntry(self):
"""Tests the _ExtractFileEntry function."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool()
test_path = self._GetTestFilePath(['ímynd.dd'])
os_path_spec = path_spec_factory.Factory.NewPathSpec(
dfvfs_definitions.TYPE_INDICATOR_OS, location=test_path)
tsk_path_spec = path_spec_factory.Factory.NewPathSpec(
dfvfs_definitions.TYPE_INDICATOR_TSK, inode=16,
location='/a_directory/another_file', parent=os_path_spec)
with shared_test_lib.TempDirectory() as temp_directory:
test_tool._ExtractFileEntry(
tsk_path_spec, temp_directory, output_writer)
# TODO: add tests for _ExtractWithFilter.
# TODO: add tests for _GetSourceFileSystem.
def testParseExtensionsString(self):
"""Tests the _ParseExtensionsString function."""
test_tool = image_export_tool.ImageExportTool()
test_tool._ParseExtensionsString('txt')
# TODO: add tests for _ParseFilterOptions.
def testParseNamesString(self):
"""Tests the _ParseNamesString function."""
test_tool = image_export_tool.ImageExportTool()
test_tool._ParseNamesString('another_file')
def testParseSignatureIdentifiers(self):
"""Tests the _ParseSignatureIdentifiers function."""
test_tool = image_export_tool.ImageExportTool()
test_tool._ParseSignatureIdentifiers(self._DATA_PATH, 'gzip')
with self.assertRaises(ValueError):
test_tool._ParseSignatureIdentifiers(None, 'gzip')
with self.assertRaises(IOError):
test_path = os.path.join(os.sep, 'bogus')
test_tool._ParseSignatureIdentifiers(test_path, 'gzip')
# TODO: add tests for _Preprocess.
# TODO: add tests for _ReadSpecificationFile.
@shared_test_lib.skipUnlessHasTestFile(['ímynd.dd'])
def testWriteFileEntry(self):
"""Tests the _WriteFileEntry function."""
test_tool = image_export_tool.ImageExportTool()
test_path = self._GetTestFilePath(['ímynd.dd'])
os_path_spec = path_spec_factory.Factory.NewPathSpec(
dfvfs_definitions.TYPE_INDICATOR_OS, location=test_path)
tsk_path_spec = path_spec_factory.Factory.NewPathSpec(
dfvfs_definitions.TYPE_INDICATOR_TSK, inode=16,
location='/a_directory/another_file', parent=os_path_spec)
file_entry = path_spec_resolver.Resolver.OpenFileEntry(tsk_path_spec)
with shared_test_lib.TempDirectory() as temp_directory:
destination_path = os.path.join(temp_directory, 'another_file')
test_tool._WriteFileEntry(file_entry, '', destination_path)
# TODO: add tests for AddFilterOptions.
def testListSignatureIdentifiers(self):
"""Tests the ListSignatureIdentifiers function."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
test_tool._data_location = self._TEST_DATA_PATH
test_tool.ListSignatureIdentifiers()
expected_output = (
'Available signature identifiers:\n'
'7z, bzip2, esedb, evt, evtx, ewf_e01, ewf_l01, exe_mz, gzip, lnk, '
'msiecf, nk2,\n'
'olecf, olecf_beta, pdf, pff, qcow, rar, regf, tar, tar_old, '
'vhdi_footer,\n'
'vhdi_header, wtcdb_cache, wtcdb_index, zip\n'
'\n')
output = output_writer.ReadOutput()
# Compare the output as list of lines which makes it easier to spot
# differences.
self.assertEqual(output.split('\n'), expected_output.split('\n'))
test_tool._data_location = self._GetTestFilePath(['tmp'])
with self.assertRaises(errors.BadConfigOption):
test_tool.ListSignatureIdentifiers()
def testParseArguments(self):
"""Tests the ParseArguments function."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
result = test_tool.ParseArguments()
self.assertFalse(result)
# TODO: check output.
# TODO: improve test coverage.
def testParseOptions(self):
"""Tests the ParseOptions function."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
options = test_lib.TestOptions()
options.artifact_definitions_path = self._GetTestFilePath(['artifacts'])
options.image = self._GetTestFilePath(['image.qcow2'])
test_tool.ParseOptions(options)
options = test_lib.TestOptions()
with self.assertRaises(errors.BadConfigOption):
test_tool.ParseOptions(options)
# TODO: improve test coverage.
@shared_test_lib.skipUnlessHasTestFile(['image.qcow2'])
def testPrintFilterCollection(self):
"""Tests the PrintFilterCollection function."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
options = test_lib.TestOptions()
options.artifact_definitions_path = self._GetTestFilePath(['artifacts'])
options.date_filters = ['ctime,2012-05-25 15:59:00,2012-05-25 15:59:20']
options.image = self._GetTestFilePath(['image.qcow2'])
options.quiet = True
test_tool.ParseOptions(options)
test_tool.PrintFilterCollection()
expected_output = '\n'.join([
'Filters:',
('\tctime between 2012-05-25 15:59:00.000000 and '
'2012-05-25 15:59:20.000000'),
''])
output = output_writer.ReadOutput()
self.assertEqual(output, expected_output)
def testProcessSourcesWithImage(self):
"""Tests the ProcessSources function on a single partition image."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
options = test_lib.TestOptions()
options.artifact_definitions_path = self._GetTestFilePath(['artifacts'])
options.image = self._GetTestFilePath(['ímynd.dd'])
options.quiet = True
with shared_test_lib.TempDirectory() as temp_directory:
options.path = temp_directory
test_tool.ParseOptions(options)
test_tool.ProcessSources()
expected_output = '\n'.join([
'Export started.',
'Extracting file entries.',
'Export completed.',
'',
''])
output = output_writer.ReadOutput()
self.assertEqual(output, expected_output)
@shared_test_lib.skipUnlessHasTestFile(['image.qcow2'])
def testProcessSourcesExtractWithDateTimeFilter(self):
"""Tests the ProcessSources function with a date time filter."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
options = test_lib.TestOptions()
options.artifact_definitions_path = self._GetTestFilePath(['artifacts'])
options.date_filters = ['ctime,2012-05-25 15:59:00,2012-05-25 15:59:20']
options.image = self._GetTestFilePath(['image.qcow2'])
options.quiet = True
with shared_test_lib.TempDirectory() as temp_directory:
options.path = temp_directory
test_tool.ParseOptions(options)
test_tool.ProcessSources()
expected_extracted_files = sorted([
os.path.join(temp_directory, 'a_directory'),
os.path.join(temp_directory, 'a_directory', 'a_file')])
extracted_files = self._RecursiveList(temp_directory)
self.assertEqual(sorted(extracted_files), expected_extracted_files)
@shared_test_lib.skipUnlessHasTestFile(['image.qcow2'])
def testProcessSourcesExtractWithExtensionsFilter(self):
"""Tests the ProcessSources function with an extensions filter."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
options = test_lib.TestOptions()
options.artifact_definitions_path = self._GetTestFilePath(['artifacts'])
options.extensions_string = 'txt'
options.image = self._GetTestFilePath(['image.qcow2'])
options.quiet = True
with shared_test_lib.TempDirectory() as temp_directory:
options.path = temp_directory
test_tool.ParseOptions(options)
test_tool.ProcessSources()
expected_extracted_files = sorted([
os.path.join(temp_directory, 'passwords.txt')])
extracted_files = self._RecursiveList(temp_directory)
self.assertEqual(sorted(extracted_files), expected_extracted_files)
@shared_test_lib.skipUnlessHasTestFile(['image.qcow2'])
def testProcessSourcesExtractWithNamesFilter(self):
"""Tests the ProcessSources function with a names filter."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
options = test_lib.TestOptions()
options.artifact_definitions_path = self._GetTestFilePath(['artifacts'])
options.image = self._GetTestFilePath(['image.qcow2'])
options.names_string = 'another_file'
options.quiet = True
with shared_test_lib.TempDirectory() as temp_directory:
options.path = temp_directory
test_tool.ParseOptions(options)
test_tool.ProcessSources()
expected_extracted_files = sorted([
os.path.join(temp_directory, 'a_directory'),
os.path.join(temp_directory, 'a_directory', 'another_file')])
extracted_files = self._RecursiveList(temp_directory)
self.assertEqual(sorted(extracted_files), expected_extracted_files)
@shared_test_lib.skipUnlessHasTestFile(['image.qcow2'])
def testProcessSourcesExtractWithFilter(self):
"""Tests the ProcessSources function with a filter file."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
options = test_lib.TestOptions()
options.artifact_definitions_path = self._GetTestFilePath(['artifacts'])
options.image = self._GetTestFilePath(['image.qcow2'])
options.quiet = True
with shared_test_lib.TempDirectory() as temp_directory:
filter_file = os.path.join(temp_directory, 'filter.txt')
with io.open(filter_file, 'wt', encoding='utf-8') as file_object:
file_object.write('/a_directory/.+_file\n')
options.file_filter = filter_file
options.path = temp_directory
test_tool.ParseOptions(options)
test_tool.ProcessSources()
expected_extracted_files = sorted([
os.path.join(temp_directory, 'filter.txt'),
os.path.join(temp_directory, 'a_directory'),
os.path.join(temp_directory, 'a_directory', 'another_file'),
os.path.join(temp_directory, 'a_directory', 'a_file')])
extracted_files = self._RecursiveList(temp_directory)
self.assertEqual(sorted(extracted_files), expected_extracted_files)
@shared_test_lib.skipUnlessHasTestFile(['artifacts'])
@shared_test_lib.skipUnlessHasTestFile(['image.qcow2'])
def testProcessSourcesExtractWithArtifactsFilter(self):
"""Tests the ProcessSources function with a artifacts filter file."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
options = test_lib.TestOptions()
options.artifact_definitions_path = self._GetTestFilePath(['artifacts'])
options.image = self._GetTestFilePath(['image.qcow2'])
options.quiet = True
options.artifact_filter_string = 'TestFilesImageExport'
with shared_test_lib.TempDirectory() as temp_directory:
options.path = temp_directory
test_tool.ParseOptions(options)
test_tool.ProcessSources()
expected_extracted_files = sorted([
os.path.join(temp_directory, 'a_directory'),
os.path.join(temp_directory, 'a_directory', 'another_file'),
os.path.join(temp_directory, 'a_directory', 'a_file')])
extracted_files = self._RecursiveList(temp_directory)
self.assertEqual(sorted(extracted_files), expected_extracted_files)
@shared_test_lib.skipUnlessHasTestFile(['artifacts'])
@shared_test_lib.skipUnlessHasTestFile(['image.qcow2'])
def testProcessSourcesExtractWithArtifactsGroupFilter(self):
"""Tests the ProcessSources function with a group artifacts filter file."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
options = test_lib.TestOptions()
options.artifact_definitions_path = self._GetTestFilePath(['artifacts'])
options.image = self._GetTestFilePath(['image.qcow2'])
options.quiet = True
options.artifact_filter_string = 'TestGroupExport'
with shared_test_lib.TempDirectory() as temp_directory:
options.path = temp_directory
test_tool.ParseOptions(options)
test_tool.ProcessSources()
expected_extracted_files = sorted([
os.path.join(temp_directory, 'a_directory'),
os.path.join(temp_directory, 'a_directory', 'another_file'),
os.path.join(temp_directory, 'a_directory', 'a_file'),
os.path.join(temp_directory, 'passwords.txt')])
extracted_files = self._RecursiveList(temp_directory)
self.assertEqual(sorted(extracted_files), expected_extracted_files)
@shared_test_lib.skipUnlessHasTestFile(['syslog_image.dd'])
def testProcessSourcesExtractWithSignaturesFilter(self):
"""Tests the ProcessSources function with a signatures filter."""
output_writer = test_lib.TestOutputWriter(encoding='utf-8')
test_tool = image_export_tool.ImageExportTool(output_writer=output_writer)
options = test_lib.TestOptions()
options.artifact_definitions_path = self._GetTestFilePath(['artifacts'])
options.image = self._GetTestFilePath(['syslog_image.dd'])
options.quiet = True
options.signature_identifiers = 'gzip'
with shared_test_lib.TempDirectory() as temp_directory:
options.path = temp_directory
test_tool.ParseOptions(options)
test_tool.ProcessSources()
expected_extracted_files = sorted([
os.path.join(temp_directory, 'logs'),
os.path.join(temp_directory, 'logs', 'sys.tgz')])
extracted_files = self._RecursiveList(temp_directory)
self.assertEqual(sorted(extracted_files), expected_extracted_files)
if __name__ == '__main__':
unittest.main()
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