BIOSUtilities/Toshiba_COM_Extract.py

#!/usr/bin/env python3
#coding=utf-8

"""
Toshiba COM Extract
Toshiba BIOS COM Extractor
Copyright (C) 2018-2022 Plato Mavropoulos
"""

TITLE = 'Toshiba BIOS COM Extractor v2.0_a4'

import os
import sys
import subprocess
    
# Stop __pycache__ generation
sys.dont_write_bytecode = True

from common.externals import get_comextract_path
from common.path_ops import make_dirs, path_stem, path_suffixes
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

# Check if input is Toshiba BIOS COM image
def is_toshiba_com(in_file):
    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

# Parse & Extract Toshiba BIOS COM image
def toshiba_com_extract(input_file, extract_path, padding=0):
    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)
    output_file = os.path.join(extract_path, f'{output_name}.bin')
    
    try:
        subprocess.run([get_comextract_path(), input_file, output_file], check=True, stdout=subprocess.DEVNULL)
        
        if not os.path.isfile(output_file):
            raise Exception('EXTRACT_FILE_MISSING')
    except Exception:
        printer(f'Error: ToshibaComExtractor could not extract file {input_file}!', padding)
        
        return 2
    
    printer(f'Succesfull {output_name} extraction via ToshibaComExtractor!', padding)
    
    return 0

if __name__ == '__main__':
    BIOSUtility(TITLE, is_toshiba_com, toshiba_com_extract).run_utility()