rar.py

ofrak.core.rar

RarArchive (GenericBinary, FilesystemRoot) dataclass

Filesystem stored in a RAR archive.

RarUnpacker (Unpacker)

Unpack RAR archives using the free unrar tool.

unpack(self, resource, config=None) async

Unpack the given resource.

Users should not call this method directly; rather, they should run Resource.run or Resource.unpack.

Parameters:

Name	Type	Description	Default
resource	Resource	The resource that is being unpacked	required
config	ComponentConfig	Optional config for unpacking. If an implementation provides a default, this default will always be used when config would otherwise be None. Note that a copy of the default config will be passed, so the default config values cannot be modified persistently by a component run.	None

Source code in ofrak/core/rar.py

async def unpack(self, resource: Resource, config: ComponentConfig = None):
    with tempfile.NamedTemporaryFile(
        suffix=".rar"
    ) as temp_archive, tempfile.TemporaryDirectory() as temp_dir:
        temp_archive.write(await resource.get_data())
        temp_archive.flush()

        cmd = [
            "unar",
            "-no-directory",
            "-no-recursion",
            temp_archive.name,
        ]
        proc = await asyncio.create_subprocess_exec(
            *cmd,
            cwd=temp_dir,
        )
        returncode = await proc.wait()
        if proc.returncode:
            raise CalledProcessError(returncode=returncode, cmd=cmd)

        rar_view = await resource.view_as(RarArchive)
        await rar_view.initialize_from_disk(temp_dir)