def Open(cls, fd, component, handlers, pathspec=None, progress_callback=None):
# A Pathspec which starts with NTFS means we need to resolve the mount
# point at runtime.
if fd is None and component.pathtype == rdf_paths.PathSpec.PathType.NTFS:
# We are the top level handler. This means we need to check the system
# mounts to work out the exact mount point and device we need to
# open. We then modify the pathspec so we get nested in the raw
# pathspec.
raw_pathspec, corrected_path = client_utils.GetRawDevice(component.path)
# Insert the raw device before the component in the pathspec and correct
# the path
component.path = corrected_path
pathspec.Insert(0, component)
pathspec.Insert(0, raw_pathspec)
# Allow incoming pathspec to be given in the local system path
# conventions.
for component in pathspec:
if component.path:
component.path = client_utils.LocalPathToCanonicalPath(component.path)
# We have not actually opened anything in this iteration, but modified the
# pathspec. Next time we should be able to open it properly.
return fd
else:
return super(NTFSFile, cls).Open(
fd=fd,
component=component,
handlers=handlers,
pathspec=pathspec,
progress_callback=progress_callback)
def Open(cls, fd, component, pathspec=None, progress_callback=None):
# A Pathspec which starts with TSK means we need to resolve the mount point
# at runtime.
if fd is None and component.pathtype == rdf_paths.PathSpec.PathType.TSK:
# We are the top level handler. This means we need to check the system
# mounts to work out the exact mount point and device we need to
# open. We then modify the pathspec so we get nested in the raw
# pathspec.
raw_pathspec, corrected_path = client_utils.GetRawDevice(component.path)
# Insert the raw device before the component in the pathspec and correct
# the path
component.path = corrected_path
pathspec.Insert(0, component)
pathspec.Insert(0, raw_pathspec)
# Allow incoming pathspec to be given in the local system path
# conventions.
for component in pathspec:
if component.path:
component.path = client_utils.LocalPathToCanonicalPath(component.path)
# We have not actually opened anything in this iteration, but modified the
# pathspec. Next time we should be able to open it properly.
return fd
# If an inode is specified, just use it directly.
elif component.HasField("inode"):
return TSKFile(fd, component, progress_callback=progress_callback)
# Otherwise do the usual case folding.
else:
return vfs.VFSHandler.Open(
fd, component, pathspec=pathspec, progress_callback=progress_callback)
def testGetRawDevice(self):
if platform.system() == "Windows":
path = "C:\\"
else:
path = "/"
result, _ = client_utils.GetRawDevice(path)
self.assertTrue(result.path)
def Open(
cls,
fd: Optional[vfs_base.VFSHandler],
component: rdf_paths.PathSpec,
handlers: Dict[Any, Type[vfs_base.VFSHandler]],
pathspec: Optional[rdf_paths.PathSpec] = None,
progress_callback: Optional[Callable[[], None]] = None
) -> Optional[vfs_base.VFSHandler]:
# A Pathspec which starts with NTFS means we need to resolve the mount
# point at runtime.
if (fd is None
and component.pathtype == rdf_paths.PathSpec.PathType.NTFS
and pathspec is not None):
# We are the top level handler. This means we need to check the system
# mounts to work out the exact mount point and device we need to
# open. We then modify the pathspec so we get nested in the raw
# pathspec.
raw_pathspec, corrected_path = client_utils.GetRawDevice(
component.path)
# Insert the raw device before the component in the pathspec and correct
# the path
component.path = corrected_path
pathspec.Insert(0, component)
pathspec.Insert(0, raw_pathspec)
# Allow incoming pathspec to be given in the local system path
# conventions.
for component in pathspec:
if component.path:
component.path = client_utils.LocalPathToCanonicalPath(
component.path)
# We have not actually opened anything in this iteration, but modified the
# pathspec. Next time we should be able to open it properly.
return fd
# If an inode is specified, just use it directly.
# This is necessary so that component.path is ignored.
elif component.HasField("inode"):
return NTFSFile(fd,
handlers,
component,
progress_callback=progress_callback)
else:
return super(NTFSFile,
cls).Open(fd=fd,
component=component,
handlers=handlers,
pathspec=pathspec,
progress_callback=progress_callback)
