# -*- coding: utf-8 -*-
"""The RAW storage media image file-like object implementation."""
import pysmraw
from dfvfs import dependencies
from dfvfs.file_io import file_object_io
from dfvfs.lib import errors
from dfvfs.lib import raw
from dfvfs.resolver import resolver
dependencies.CheckModuleVersion(u'pysmraw')
class RawFile(file_object_io.FileObjectIO):
"""Class that implements a file-like object using pysmraw."""
def __init__(self, resolver_context, file_object=None):
"""Initializes the file-like object.
Args:
resolver_context: the resolver context (instance of resolver.Context).
file_object: optional file-like object. The default is None.
Raises:
ValueError: when file_object is set.
"""
if file_object:
raise ValueError(u'File object value set.')
super(RawFile, self).__init__(resolver_context)
self._file_objects = []
"""The Volume Shadow Snapshots (VSS) file system implementation."""
import pyvshadow
# This is necessary to prevent a circular import.
import dfvfs.vfs.vshadow_file_entry
from dfvfs import dependencies
from dfvfs.lib import definitions
from dfvfs.lib import errors
from dfvfs.lib import vshadow
from dfvfs.path import vshadow_path_spec
from dfvfs.resolver import resolver
from dfvfs.vfs import file_system
dependencies.CheckModuleVersion(u'pyvshadow')
class VShadowFileSystem(file_system.FileSystem):
"""Class that implements a file system object using pyvshadow."""
LOCATION_ROOT = u'/'
TYPE_INDICATOR = definitions.TYPE_INDICATOR_VSHADOW
def __init__(self, resolver_context):
"""Initializes the file system object.
Args:
resolver_context: the resolver context (instance of resolver.Context).
"""
super(VShadowFileSystem, self).__init__(resolver_context)
# -*- coding: utf-8 -*-
"""The NTFS file-like object implementation."""
import os
from dfvfs import dependencies
from dfvfs.file_io import file_io
from dfvfs.resolver import resolver
dependencies.CheckModuleVersion(u'pyfsntfs')
class NTFSFile(file_io.FileIO):
"""Class that implements a file-like object using pyfsntfs."""
def __init__(self, resolver_context):
"""Initializes the file-like object.
Args:
resolver_context: the resolver context (instance of resolver.Context).
"""
super(NTFSFile, self).__init__(resolver_context)
self._file_system = None
self._fsntfs_data_stream = None
self._fsntfs_file_entry = None
def _Close(self):
"""Closes the file-like object."""
self._fsntfs_data_stream = None
self._fsntfs_file_entry = None
# -*- coding: utf-8 -*-
"""The format analyzer."""
import pysigscan
from dfvfs import dependencies
from dfvfs.analyzer import specification
from dfvfs.lib import definitions
from dfvfs.resolver import resolver
dependencies.CheckModuleVersion(u'pysigscan')
class Analyzer(object):
"""Class that implements the format analyzer."""
_SCAN_BUFFER_SIZE = 33 * 1024
_analyzer_helpers = {}
# The archive format category analyzer helpers that do not have
# a format specification.
_archive_remainder_list = None
# The archive format category signature scanner.
_archive_scanner = None
# The archive format category specification store.
_archive_store = None
# The compressed stream format category analyzer helpers that do not have
# -*- coding: utf-8 -*-
"""The operating system file-like object implementation."""
import stat
import os
import pysmdev
from dfvfs import dependencies
from dfvfs.file_io import file_io
from dfvfs.lib import errors
from dfvfs.lib import py2to3
dependencies.CheckModuleVersion(u'pysmdev')
class OSFile(file_io.FileIO):
"""Class that implements a file-like object using os."""
def __init__(self, resolver_context):
"""Initializes the file-like object.
Args:
resolver_context: the resolver context (instance of resolver.Context).
"""
super(OSFile, self).__init__(resolver_context)
self._file_object = None
self._size = 0
def _Close(self):
"""Closes the file-like object.
# -*- coding: utf-8 -*-
"""The FileVault Drive Encryption (FVDE) file-like object."""
import pyfvde
from dfvfs import dependencies
from dfvfs.file_io import file_object_io
from dfvfs.lib import fvde
from dfvfs.lib import errors
from dfvfs.resolver import resolver
dependencies.CheckModuleVersion(u'pyfvde')
class FVDEFile(file_object_io.FileObjectIO):
"""Class that implements a file-like object using pyfvde."""
def _OpenFileObject(self, path_spec):
"""Opens the file-like object defined by path specification.
Args:
path_spec (PathSpec): path specification.
Returns:
A file-like object.
Raises:
PathSpecError: if the path specification is incorrect.
"""
if not path_spec.HasParent():
raise errors.PathSpecError(
u'Unsupported path specification without parent.')
# -*- coding: utf-8 -*-
"""The QCOW image file-like object."""
import pyqcow
from dfvfs import dependencies
from dfvfs.file_io import file_object_io
from dfvfs.lib import errors
from dfvfs.resolver import resolver
dependencies.CheckModuleVersion(u'pyqcow')
class QcowFile(file_object_io.FileObjectIO):
"""Class that implements a file-like object using pyqcow."""
def _OpenFileObject(self, path_spec):
"""Opens the file-like object defined by path specification.
Args:
path_spec: the path specification (instance of path.PathSpec).
Returns:
A file-like object.
Raises:
PathSpecError: if the path specification is incorrect.
"""
if not path_spec.HasParent():
raise errors.PathSpecError(
# -*- coding: utf-8 -*-
"""The VHD image file-like object."""
import pyvhdi
from dfvfs import dependencies
from dfvfs.file_io import file_object_io
from dfvfs.lib import errors
from dfvfs.resolver import resolver
dependencies.CheckModuleVersion(u'pyvhdi')
class VhdiFile(file_object_io.FileObjectIO):
"""Class that implements a file-like object using pyvhdi."""
def _OpenFileObject(self, path_spec):
"""Opens the file-like object defined by path specification.
Args:
path_spec: the path specification (instance of path.PathSpec).
Returns:
A file-like object.
Raises:
PathSpecError: if the path specification is incorrect.
"""
if not path_spec.HasParent():
raise errors.PathSpecError(
def testCheckModuleVersion(self):
"""Tests the CheckModuleVersion function."""
dependencies.CheckModuleVersion(u'dfdatetime')
with self.assertRaises(ImportError):
dependencies.CheckModuleVersion(u'bogus')
"""The Logical Volume Manager (LVM) file system implementation."""
import pyvslvm
# This is necessary to prevent a circular import.
import dfvfs.vfs.lvm_file_entry
from dfvfs import dependencies
from dfvfs.lib import definitions
from dfvfs.lib import errors
from dfvfs.lib import lvm
from dfvfs.path import lvm_path_spec
from dfvfs.resolver import resolver
from dfvfs.vfs import file_system
dependencies.CheckModuleVersion(u'pyvslvm')
class LVMFileSystem(file_system.FileSystem):
"""Class that implements a file system object using pyvslvm."""
TYPE_INDICATOR = definitions.TYPE_INDICATOR_LVM
def __init__(self, resolver_context):
"""Initializes a file system object.
Args:
resolver_context: the resolver context (instance of Context).
"""
super(LVMFileSystem, self).__init__(resolver_context)
self._file_object = None
# -*- coding: utf-8 -*-
"""The EWF image file-like object."""
import pyewf
from dfvfs import dependencies
from dfvfs.file_io import file_object_io
from dfvfs.lib import errors
from dfvfs.lib import ewf
from dfvfs.resolver import resolver
dependencies.CheckModuleVersion(u'pyewf')
class EWFFile(file_object_io.FileObjectIO):
"""Class that implements a file-like object using pyewf."""
def __init__(self, resolver_context, file_object=None):
"""Initializes the file-like object.
Args:
resolver_context: the resolver context (instance of resolver.Context).
file_object: optional file-like object.
Raises:
ValueError: when file_object is set.
"""
if file_object:
raise ValueError(u'File object value set.')
# -*- coding: utf-8 -*-
"""The VMDK image file-like object."""
import pyvmdk
from dfvfs import dependencies
from dfvfs.file_io import file_object_io
from dfvfs.lib import errors
from dfvfs.path import factory as path_spec_factory
from dfvfs.resolver import resolver
dependencies.CheckModuleVersion(u'pyvmdk')
class VMDKFile(file_object_io.FileObjectIO):
"""Class that implements a file-like object using pyvmdk."""
def _OpenFileObject(self, path_spec):
"""Opens the file-like object defined by path specification.
Args:
path_spec: the path specification (instance of PathSpec).
Returns:
A file-like object.
Raises:
IOError: if the file-like object could not be opened.
PathSpecError: if the path specification is incorrect.
"""
if not path_spec.HasParent():
raise errors.PathSpecError(