BIOSUtilities/biosutilities/apple_efi_pkg.py
Plato Mavropoulos eda154b0f2 BIOSUtilities v24.10.06
24.10.06

Changed BIOSUtility.parse_format() to return a boolean
Changed 7-Zip and EFI decompressors to return booleans
Apple EFI Package Extractor support for InstallAssistant
Apple EFI Image Identifier support for Apple ROM Version
Added Apple EFI Image Identifier class instance attributes
Improved flow of non-PATH external executable dependencies
Fixed crash when attempting to clear read-only attribute
Fixed incompatibility with Python versions prior to 3.12
Performance improvements when initializing BIOSUtilities
Improved argument naming and definitions of "main" script
Improved the README with new "main" and Apple EFI changes
2024-10-07 01:24:12 +03:00

215 lines
9.7 KiB
Python

#!/usr/bin/env python3 -B
# coding=utf-8
"""
Apple EFI PKG
Apple EFI Package Extractor
Copyright (C) 2019-2024 Plato Mavropoulos
"""
import os
from biosutilities.common.compression import is_szip_supported, szip_decompress
from biosutilities.common.paths import (copy_file, delete_dirs, extract_folder, make_dirs, path_files,
path_name, path_parent, path_suffixes, runtime_root)
from biosutilities.common.patterns import PAT_APPLE_PKG_DMG, PAT_APPLE_PKG_TAR, PAT_APPLE_PKG_XAR
from biosutilities.common.system import printer
from biosutilities.common.templates import BIOSUtility
from biosutilities.common.texts import file_to_bytes
from biosutilities.apple_efi_id import AppleEfiIdentify
from biosutilities.apple_efi_im4p import AppleEfiIm4pSplit
from biosutilities.apple_efi_pbzx import AppleEfiPbzxExtract
class AppleEfiPkgExtract(BIOSUtility):
""" Apple EFI Package Extractor """
TITLE: str = 'Apple EFI Package Extractor'
def check_format(self, input_object: str | bytes | bytearray) -> bool:
""" Check if input is Apple EFI PKG package """
is_apple_efi_pkg: bool = False
input_buffer: bytes = file_to_bytes(in_object=input_object)
if isinstance(input_object, str) and os.path.isfile(path=input_object):
input_path: str = input_object
else:
input_path = os.path.join(runtime_root(), 'APPLE_EFI_PKG_INPUT_BUFFER_CHECK.bin')
with open(file=input_path, mode='wb') as input_path_object:
input_path_object.write(input_buffer)
if is_szip_supported(in_path=input_path, args=['-tXAR:s0']):
if bool(PAT_APPLE_PKG_XAR.search(string=input_buffer, endpos=4)):
is_apple_efi_pkg = True
elif is_szip_supported(in_path=input_path, args=['-tTAR:s0']):
if bool(PAT_APPLE_PKG_TAR.search(string=input_buffer)):
is_apple_efi_pkg = True
elif is_szip_supported(in_path=input_path, args=['-tDMG:s0']):
if bool(PAT_APPLE_PKG_DMG.search(string=input_buffer, endpos=200)):
is_apple_efi_pkg = True
if input_path != input_object:
os.remove(path=input_path)
return is_apple_efi_pkg
def parse_format(self, input_object: str | bytes | bytearray, extract_path: str, padding: int = 0) -> bool:
""" Parse & Extract Apple EFI PKG packages """
if isinstance(input_object, str) and os.path.isfile(path=input_object):
input_path: str = input_object
else:
input_path = os.path.join(runtime_root(), 'APPLE_EFI_PKG_INPUT_BUFFER_PARSE.bin')
with open(file=input_path, mode='wb') as input_path_object:
input_path_object.write(file_to_bytes(in_object=input_object))
make_dirs(in_path=extract_path, delete=True)
working_dir: str = os.path.join(extract_path, 'temp')
make_dirs(in_path=working_dir, delete=True)
for pkg_type in ('XAR', 'TAR', 'DMG'):
if is_szip_supported(in_path=input_path, padding=padding, args=[f'-t{pkg_type}']):
if szip_decompress(in_path=input_path, out_path=working_dir, in_name=pkg_type, padding=padding,
args=None if pkg_type == 'DMG' else [f'-t{pkg_type}']):
break
else:
return False
if input_path != input_object:
os.remove(path=input_path)
for work_file in path_files(in_path=working_dir):
self._pbzx_zip(input_path=work_file, extract_path=extract_path, padding=padding + 4)
self._gzip_cpio(input_path=work_file, extract_path=extract_path, padding=padding + 4)
self._dmg_zip(input_path=work_file, extract_path=extract_path, padding=padding + 4)
self._xar_gzip(input_path=work_file, extract_path=extract_path, padding=padding + 4)
delete_dirs(in_path=working_dir)
return True
def _xar_gzip(self, input_path: str, extract_path: str, padding: int = 0) -> None:
""" XAR/TAR > GZIP """
for pkg_type in ('XAR', 'TAR'):
if is_szip_supported(in_path=input_path, padding=padding, args=[f'-t{pkg_type}']):
pkg_path: str = extract_folder(in_path=input_path, suffix=f'_{pkg_type.lower()}_gzip')
if szip_decompress(in_path=input_path, out_path=pkg_path, in_name=pkg_type,
padding=padding, args=[f'-t{pkg_type}']):
for pkg_file in path_files(in_path=pkg_path):
self._gzip_cpio(input_path=pkg_file, extract_path=extract_path, padding=padding + 4)
break
def _dmg_zip(self, input_path: str, extract_path: str, padding: int = 0) -> None:
""" DMG > ZIP """
if is_szip_supported(in_path=input_path, padding=padding, args=['-tDMG']):
dmg_path: str = extract_folder(in_path=input_path, suffix='_dmg_zip')
if szip_decompress(in_path=input_path, out_path=dmg_path, in_name='DMG', padding=padding, args=None):
for dmg_file in path_files(in_path=dmg_path):
if is_szip_supported(in_path=dmg_file, padding=padding + 4, args=['-tZIP']):
zip_path: str = extract_folder(in_path=dmg_file)
if szip_decompress(in_path=dmg_file, out_path=zip_path, in_name='ZIP',
padding=padding + 4, args=['-tZIP']):
for zip_file in path_files(in_path=zip_path):
self._im4p_id(input_path=zip_file, output_path=extract_path, padding=padding + 8)
def _pbzx_zip(self, input_path: str, extract_path: str, padding: int = 0) -> None:
""" PBZX > ZIP """
pbzx_module: AppleEfiPbzxExtract = AppleEfiPbzxExtract()
if pbzx_module.check_format(input_object=input_path):
printer(message=f'Extracting PBZX via {pbzx_module.title}', padding=padding)
pbzx_path: str = extract_folder(in_path=input_path, suffix='_pbzx_zip')
if pbzx_module.parse_format(input_object=input_path, extract_path=pbzx_path, padding=padding + 4):
printer(message=f'Successful PBZX extraction via {pbzx_module.title}!', padding=padding)
for pbzx_file in path_files(in_path=pbzx_path):
if is_szip_supported(in_path=pbzx_file, padding=padding + 4, args=['-tZIP']):
zip_path: str = extract_folder(in_path=pbzx_file)
if szip_decompress(in_path=pbzx_file, out_path=zip_path, in_name='ZIP',
padding=padding + 4, args=['-tZIP']):
for zip_file in path_files(in_path=zip_path):
self._im4p_id(input_path=zip_file, output_path=extract_path, padding=padding + 8)
def _gzip_cpio(self, input_path: str, extract_path: str, padding: int = 0) -> None:
""" GZIP > CPIO """
if is_szip_supported(in_path=input_path, padding=padding, args=['-tGZIP']):
gzip_path: str = extract_folder(in_path=input_path, suffix='_gzip_cpio')
if szip_decompress(in_path=input_path, out_path=gzip_path, in_name='GZIP',
padding=padding, args=['-tGZIP']):
for gzip_file in path_files(in_path=gzip_path):
if is_szip_supported(in_path=gzip_file, padding=padding + 4, args=['-tCPIO']):
cpio_path: str = extract_folder(in_path=gzip_file)
if szip_decompress(in_path=gzip_file, out_path=cpio_path, in_name='CPIO',
padding=padding + 4, args=['-tCPIO']):
for cpio_file in path_files(in_path=cpio_path):
self._im4p_id(input_path=cpio_file, output_path=extract_path, padding=padding + 8)
@staticmethod
def _im4p_id(input_path: str, output_path: str, padding: int = 0) -> None:
""" Split IM4P (if applicable), identify and rename EFI """
if path_suffixes(in_path=input_path)[-1].lower() not in ('.fd', '.scap', '.im4p'):
return None
if not AppleEfiIdentify().check_format(input_object=input_path):
return None
input_name: str = path_name(in_path=input_path)
printer(message=input_name, padding=padding)
working_dir: str = extract_folder(in_path=input_path)
im4p_module: AppleEfiIm4pSplit = AppleEfiIm4pSplit()
if im4p_module.check_format(input_object=input_path):
printer(message=f'Splitting IM4P via {im4p_module.title}', padding=padding + 4)
im4p_module.parse_format(input_object=input_path, extract_path=working_dir, padding=padding + 8)
else:
make_dirs(in_path=working_dir, delete=True)
copy_file(in_path=input_path, out_path=working_dir, metadata=True)
for efi_source in path_files(in_path=working_dir):
efi_id_module: AppleEfiIdentify = AppleEfiIdentify()
if efi_id_module.check_format(input_object=efi_source):
printer(message=f'Identifying EFI via {efi_id_module.title}', padding=padding + 4)
if efi_id_module.parse_format(input_object=efi_source, extract_path=extract_folder(in_path=efi_source),
padding=padding + 8):
efi_dest: str = os.path.join(path_parent(in_path=efi_source), efi_id_module.efi_file_name)
os.rename(src=efi_source, dst=efi_dest)
for efi_final in path_files(in_path=working_dir):
copy_file(in_path=efi_final, out_path=output_path, metadata=True)
delete_dirs(in_path=working_dir)
return None
if __name__ == '__main__':
AppleEfiPkgExtract().run_utility()