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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Tests for the format analyzer."""
from __future__ import unicode_literals
import unittest
from dfvfs.analyzer import analyzer
from dfvfs.analyzer import analyzer_helper
from dfvfs.analyzer import specification
from dfvfs.lib import definitions
from dfvfs.path import gzip_path_spec
from dfvfs.path import os_path_spec
from dfvfs.path import qcow_path_spec
from dfvfs.path import raw_path_spec
from dfvfs.path import tsk_partition_path_spec
from dfvfs.path import vshadow_path_spec
from tests import test_lib as shared_test_lib
class TestAnalyzerHelper(analyzer_helper.AnalyzerHelper):
"""Analyzer helper for testing."""
FORMAT_CATEGORIES = frozenset([
definitions.FORMAT_CATEGORY_VOLUME_SYSTEM])
TYPE_INDICATOR = 'test'
# pylint: disable=redundant-returns-doc,unused-argument
def AnalyzeFileObject(self, file_object):
"""Retrieves the format specification.
This is the fall through implementation that raises a RuntimeError.
Args:
file_object (FileIO): file-like object.
Returns:
str: type indicator if the file-like object contains a supported format
or None otherwise.
"""
return None
class AnalyzerTest(shared_test_lib.BaseTestCase):
"""Format analyzer tests."""
# pylint: disable=protected-access
def testFlushCache(self):
"""Tests the _FlushCache function."""
analyzer.Analyzer._FlushCache(definitions.FORMAT_CATEGORIES)
def testGetSignatureScanner(self):
"""Tests the _GetSignatureScanner function."""
specification_store = specification.FormatSpecificationStore()
signature_scanner = analyzer.Analyzer._GetSignatureScanner(
specification_store)
self.assertIsNotNone(signature_scanner)
def testGetSpecificationStore(self):
"""Tests the _GetSpecificationStore function."""
specification_store = analyzer.Analyzer._GetSpecificationStore(
definitions.FORMAT_CATEGORY_VOLUME_SYSTEM)
self.assertIsNotNone(specification_store)
# TODO: add tests for _GetTypeIndicators
def testHelperRegistration(self):
"""Tests the DeregisterHelper and RegisterHelper functions."""
test_helper = TestAnalyzerHelper()
number_of_helpers = len(analyzer.Analyzer._analyzer_helpers)
analyzer.Analyzer.RegisterHelper(test_helper)
self.assertEqual(
len(analyzer.Analyzer._analyzer_helpers), number_of_helpers + 1)
with self.assertRaises(KeyError):
analyzer.Analyzer.RegisterHelper(test_helper)
analyzer.Analyzer.DeregisterHelper(test_helper)
self.assertEqual(
len(analyzer.Analyzer._analyzer_helpers), number_of_helpers)
def testGetArchiveTypeIndicatorsTAR(self):
"""Tests the GetArchiveTypeIndicators function on a .tar file."""
test_file = self._GetTestFilePath(['syslog.tar'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_TAR]
type_indicators = analyzer.Analyzer.GetArchiveTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetArchiveTypeIndicatorsZIP(self):
"""Tests the GetArchiveTypeIndicators function on a .zip file."""
test_file = self._GetTestFilePath(['syslog.zip'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_ZIP]
type_indicators = analyzer.Analyzer.GetArchiveTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetCompressedStreamTypeIndicatorsBZIP2(self):
"""Tests the GetCompressedStreamTypeIndicators function on a .bz2 file."""
test_file = self._GetTestFilePath(['syslog.bz2'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_BZIP2]
type_indicators = analyzer.Analyzer.GetCompressedStreamTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetCompressedStreamTypeIndicatorsGZIP(self):
"""Tests the GetCompressedStreamTypeIndicators function on a .gz file."""
test_file = self._GetTestFilePath(['syslog.gz'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_GZIP]
type_indicators = analyzer.Analyzer.GetCompressedStreamTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetCompressedStreamTypeIndicatorsXZ(self):
"""Tests the GetCompressedStreamTypeIndicators function on a .xz file."""
test_file = self._GetTestFilePath(['syslog.xz'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_XZ]
type_indicators = analyzer.Analyzer.GetCompressedStreamTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetCompressedArchiveTypeIndicators(self):
"""Tests the GetCompressedStreamTypeIndicators function on a .tgz file."""
test_file = self._GetTestFilePath(['syslog.tgz'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_GZIP]
type_indicators = analyzer.Analyzer.GetCompressedStreamTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
path_spec = gzip_path_spec.GzipPathSpec(parent=path_spec)
expected_type_indicators = [definitions.TYPE_INDICATOR_TAR]
type_indicators = analyzer.Analyzer.GetArchiveTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetFileSystemTypeIndicators(self):
"""Tests the GetFileSystemTypeIndicators function on a .qcow2 file."""
test_file = self._GetTestFilePath(['vsstest.qcow2'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
path_spec = qcow_path_spec.QCOWPathSpec(parent=path_spec)
path_spec = vshadow_path_spec.VShadowPathSpec(
store_index=1, parent=path_spec)
expected_type_indicators = [definitions.PREFERRED_NTFS_BACK_END]
type_indicators = analyzer.Analyzer.GetFileSystemTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetFileSystemTypeIndicatorsEXT2(self):
"""Tests the GetFileSystemTypeIndicators function on an ext2 file system."""
test_file = self._GetTestFilePath(['ext2.raw'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
path_spec = raw_path_spec.RawPathSpec(parent=path_spec)
expected_type_indicators = [definitions.PREFERRED_EXT_BACK_END]
type_indicators = analyzer.Analyzer.GetFileSystemTypeIndicators(path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetFileSystemTypeIndicatorsHFSPlus(self):
"""Tests the GetFileSystemTypeIndicators function on a HFS+ file system."""
test_file = self._GetTestFilePath(['hfsplus.raw'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
path_spec = raw_path_spec.RawPathSpec(parent=path_spec)
expected_type_indicators = [definitions.PREFERRED_HFS_BACK_END]
type_indicators = analyzer.Analyzer.GetFileSystemTypeIndicators(path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetFileSystemTypeIndicatorsNTFS(self):
"""Tests the GetFileSystemTypeIndicators function on a NTFS file system."""
test_file = self._GetTestFilePath(['ntfs.raw'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
path_spec = raw_path_spec.RawPathSpec(parent=path_spec)
expected_type_indicators = [definitions.PREFERRED_NTFS_BACK_END]
type_indicators = analyzer.Analyzer.GetFileSystemTypeIndicators(path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetFileSystemTypeIndicatorsXFS(self):
"""Tests the GetFileSystemTypeIndicators function on an XFS file system."""
test_file = self._GetTestFilePath(['xfs.raw'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
path_spec = raw_path_spec.RawPathSpec(parent=path_spec)
expected_type_indicators = [definitions.TYPE_INDICATOR_XFS]
type_indicators = analyzer.Analyzer.GetFileSystemTypeIndicators(path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetStorageMediaImageTypeIndicatorsEWF(self):
"""Tests the GetStorageMediaImageTypeIndicator function on a .E01 file."""
test_file = self._GetTestFilePath(['ext2.E01'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_EWF]
type_indicators = analyzer.Analyzer.GetStorageMediaImageTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetStorageMediaImageTypeIndicatorsQCOW(self):
"""Tests the GetStorageMediaImageTypeIndicator function on a .qcow2 file."""
test_file = self._GetTestFilePath(['ext2.qcow2'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_QCOW]
type_indicators = analyzer.Analyzer.GetStorageMediaImageTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetStorageMediaImageTypeIndicatorsVHDI(self):
"""Tests the GetStorageMediaImageTypeIndicator function on .vhd[x] files."""
test_file = self._GetTestFilePath(['ext2.vhd'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_VHDI]
type_indicators = analyzer.Analyzer.GetStorageMediaImageTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
test_file = self._GetTestFilePath(['ext2.vhdx'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_VHDI]
type_indicators = analyzer.Analyzer.GetStorageMediaImageTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetStorageMediaImageTypeIndicatorsVMDK(self):
"""Tests the GetStorageMediaImageTypeIndicator function on a .vmdk file."""
test_file = self._GetTestFilePath(['ext2.vmdk'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_VMDK]
type_indicators = analyzer.Analyzer.GetStorageMediaImageTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetStorageMediaImageTypeIndicatorsBodyFile(self):
"""Tests the GetStorageMediaImageTypeIndicator function on a bodyfile."""
test_file = self._GetTestFilePath(['mactime.body'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = []
type_indicators = analyzer.Analyzer.GetStorageMediaImageTypeIndicators(
path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetVolumeSystemTypeIndicatorsTSK(self):
"""Tests the GetVolumeSystemTypeIndicators function on partitions."""
test_file = self._GetTestFilePath(['mbr.raw'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_TSK_PARTITION]
type_indicators = analyzer.Analyzer.GetVolumeSystemTypeIndicators(path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetVolumeSystemTypeIndicatorsVSS(self):
"""Tests the GetVolumeSystemTypeIndicators function on a VSS volume."""
test_file = self._GetTestFilePath(['vsstest.qcow2'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
path_spec = qcow_path_spec.QCOWPathSpec(parent=path_spec)
expected_type_indicators = [definitions.TYPE_INDICATOR_VSHADOW]
type_indicators = analyzer.Analyzer.GetVolumeSystemTypeIndicators(path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetVolumeSystemTypeIndicatorsBDE(self):
"""Tests the GetVolumeSystemTypeIndicators function on a BDE ToGo drive."""
test_file = self._GetTestFilePath(['bdetogo.raw'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_BDE]
type_indicators = analyzer.Analyzer.GetVolumeSystemTypeIndicators(path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetVolumeSystemTypeIndicatorsFVDE(self):
"""Tests the GetVolumeSystemTypeIndicators function on a FVDE volume."""
test_file = self._GetTestFilePath(['fvdetest.qcow2'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
path_spec = qcow_path_spec.QCOWPathSpec(parent=path_spec)
path_spec = tsk_partition_path_spec.TSKPartitionPathSpec(
location='/p1', parent=path_spec)
expected_type_indicators = [definitions.TYPE_INDICATOR_FVDE]
type_indicators = analyzer.Analyzer.GetVolumeSystemTypeIndicators(path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
def testGetVolumeSystemTypeIndicatorsLUKS(self):
"""Tests the GetVolumeSystemTypeIndicators function on a LUKS volume."""
test_file = self._GetTestFilePath(['luks1.raw'])
self._SkipIfPathNotExists(test_file)
path_spec = os_path_spec.OSPathSpec(location=test_file)
expected_type_indicators = [definitions.TYPE_INDICATOR_LUKSDE]
type_indicators = analyzer.Analyzer.GetVolumeSystemTypeIndicators(path_spec)
self.assertEqual(type_indicators, expected_type_indicators)
if __name__ == '__main__':
unittest.main()
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