Module refinery.units.formats.archive.xtace

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from refinery.units.formats.archive import ArchiveUnit
from refinery.lib.thirdparty import acefile
from refinery.lib.structures import MemoryFile


class xtace(ArchiveUnit, docs='{0}{s}{PathExtractorUnit}'):
    """
    Extract files from an ACE archive.
    """
    def unpack(self, data):
        ace = acefile.open(MemoryFile(data, read_as_bytes=True))
        for member in ace.getmembers():
            member: acefile.AceMember
            comment = {} if not member.comment else {'comment': member.comment}
            yield self._pack(
                member.filename,
                member.datetime,
                lambda a=ace, m=member: a.read(m, pwd=self.args.pwd),
                **comment
            )

    @classmethod
    def handles(cls, data: bytearray) -> bool:
        return b'**ACE**' in data[:0x100]

Classes

class xtace (*paths, list=False, join_path=False, drop_path=False, fuzzy=0, exact=False, regex=False, path=b'path', date=b'date', pwd=b'')

Extract files from an ACE archive. This unit is a path extractor which extracts data from a hierarchical structure. Each extracted item is emitted as a separate chunk and has attached to it a meta variable that contains its path within the source structure. The positional arguments to the command are patterns that can be used to filter the extracted items by their path. To view only the paths of all chunks, use the listing switch:

emit something | xtace --list

Otherwise, extracted items are written to the standard output port and usually require a frame to properly process. In order to dump all extracted data to disk, the following pipeline can be used:

emit something | xtace [| dump {path} ]
Expand source code Browse git 
class xtace(ArchiveUnit, docs='{0}{s}{PathExtractorUnit}'):
    """
    Extract files from an ACE archive.
    """
    def unpack(self, data):
        ace = acefile.open(MemoryFile(data, read_as_bytes=True))
        for member in ace.getmembers():
            member: acefile.AceMember
            comment = {} if not member.comment else {'comment': member.comment}
            yield self._pack(
                member.filename,
                member.datetime,
                lambda a=ace, m=member: a.read(m, pwd=self.args.pwd),
                **comment
            )

    @classmethod
    def handles(cls, data: bytearray) -> bool:
        return b'**ACE**' in data[:0x100]

Ancestors

Class variables

var required_dependencies
var optional_dependencies

Methods

def unpack(self, data)
Expand source code Browse git 
def unpack(self, data):
    ace = acefile.open(MemoryFile(data, read_as_bytes=True))
    for member in ace.getmembers():
        member: acefile.AceMember
        comment = {} if not member.comment else {'comment': member.comment}
        yield self._pack(
            member.filename,
            member.datetime,
            lambda a=ace, m=member: a.read(m, pwd=self.args.pwd),
            **comment
        )

Inherited members