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Toshiba BIOS COM Extractor v4.0

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Improved Toshiba COM detection (pattern only, no file extension)
Improved input object handling to support both paths and bytes
Populated code type hints and applied few small improvements
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Plato Mavropoulos 2024-06-17 23:55:57 +03:00
parent bdf926f6fd
commit ef50b75ae1
2 changed files with 20 additions and 25 deletions
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2
README.md
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@ -405,7 +405,7 @@ Moreover, you must have the following 3rd party tool at the "external" project d
#### **Description**
Parses Toshiba BIOS COM images and extracts their raw or compressed SPI/BIOS/UEFI firmware component. This utility is basically an easy to use python wrapper around [ToshibaComExtractor by LongSoft](https://github.com/LongSoft/ToshibaComExtractor). The output comprises only a final firmware component which is directly usable by end users.
Parses Toshiba BIOS COM images and extracts their raw or compressed SPI/BIOS/UEFI firmware component. This utility is effectively a python wrapper around [ToshibaComExtractor by LongSoft](https://github.com/LongSoft/ToshibaComExtractor). The output comprises only a final firmware component which is directly usable by end users.
#### **Usage**

43
Toshiba_COM_Extract.py
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@ -11,52 +11,47 @@ import os
import subprocess
from common.externals import get_comextract_path
from common.path_ops import make_dirs, path_stem, path_suffixes
from common.path_ops import make_dirs, path_stem, safe_name
from common.patterns import PAT_TOSHIBA_COM
from common.system import printer
from common.templates import BIOSUtility
from common.text_ops import file_to_bytes
TITLE = 'Toshiba BIOS COM Extractor v3.0'
TITLE = 'Toshiba BIOS COM Extractor v4.0'
def is_toshiba_com(in_file):
def is_toshiba_com(input_object: str | bytes | bytearray) -> bool:
""" Check if input is Toshiba BIOS COM image """
buffer = file_to_bytes(in_file)
is_ext = path_suffixes(in_file)[-1].upper() == '.COM' if os.path.isfile(in_file) else True
is_com = PAT_TOSHIBA_COM.search(buffer)
return is_ext and is_com
return bool(PAT_TOSHIBA_COM.search(file_to_bytes(input_object)))
def toshiba_com_extract(input_file, extract_path, padding=0):
def toshiba_com_extract(input_object: str | bytes | bytearray, extract_path: str, padding: int = 0) -> int:
""" Parse & Extract Toshiba BIOS COM image """
if not os.path.isfile(input_file):
printer('Error: Could not find input file path!', padding)
return 1
make_dirs(extract_path, delete=True)
output_name = path_stem(input_file)
if isinstance(input_object, str) and os.path.isfile(input_object):
input_path: str = input_object
else:
input_path = os.path.join(extract_path, 'toshiba_bios.com')
output_file = os.path.join(extract_path, f'{output_name}.bin')
with open(input_path, 'wb') as input_buffer:
input_buffer.write(file_to_bytes(input_object))
output_path: str = os.path.join(extract_path, f'{safe_name(path_stem(input_path))}_extracted.bin')
try:
subprocess.run([get_comextract_path(), input_file, output_file], check=True, stdout=subprocess.DEVNULL)
subprocess.run([get_comextract_path(), input_path, output_path], check=True, stdout=subprocess.DEVNULL)
if not os.path.isfile(output_file):
raise ValueError('EXTRACT_FILE_MISSING')
if not os.path.isfile(output_path):
raise FileNotFoundError('EXTRACTED_FILE_MISSING')
except Exception as error: # pylint: disable=broad-except
printer(f'Error: ToshibaComExtractor could not extract file {input_file}: {error}!', padding)
printer(f'Error: ToshibaComExtractor could not extract {input_path}: {error}!', padding)
return 2
return 1
printer(f'Succesfull {output_name} extraction via ToshibaComExtractor!', padding)
printer('Succesfull extraction via ToshibaComExtractor!', padding)
return 0