Panasonic BIOS Package Extractor v4.0

Added ability to parse nested Panasonic BIOS update executable directly
Restructured logic to allow more flexibility on input executable parsing
Populated code type hints and applied multiple small improvements
This commit is contained in:
Plato Mavropoulos 2024-05-26 19:24:27 +03:00
parent fdfdab011d
commit bdf926f6fd
2 changed files with 103 additions and 108 deletions

View file

@ -20,26 +20,30 @@ def is_pe_file(in_file: str | bytes) -> bool:
def get_pe_file(in_file: str | bytes, padding: int = 0, fast: bool = True, silent: bool = False) -> pefile.PE | None:
""" Get pefile object from PE file """
in_buffer = file_to_bytes(in_file)
pe_file = None
pe_file: pefile.PE | None = None
try:
# Analyze detected MZ > PE image buffer
pe_file = pefile.PE(data=in_buffer, fast_load=fast)
pe_file = pefile.PE(data=file_to_bytes(in_file), fast_load=fast)
except Exception as error: # pylint: disable=broad-except
if not silent:
_filename = in_file if type(in_file).__name__ == 'string' else 'buffer'
filename: str = in_file if isinstance(in_file, str) else 'buffer'
printer(f'Error: Could not get pefile object from {_filename}: {error}!', padding)
printer(f'Error: Could not get pefile object from {filename}: {error}!', padding)
return pe_file
def get_pe_desc(pe_file: pefile.PE, padding: int = 0, silent: bool = False) -> bytes:
""" Get PE description from pefile object info """
return get_pe_info(pe_file, padding, silent).get(b'FileDescription', b'')
def get_pe_info(pe_file: pefile.PE, padding: int = 0, silent: bool = False) -> dict:
""" Get PE info from pefile object """
pe_info = {}
pe_info: dict = {}
try:
# When fast_load is used, IMAGE_DIRECTORY_ENTRY_RESOURCE must be parsed prior to FileInfo > StringTable
@ -54,13 +58,15 @@ def get_pe_info(pe_file: pefile.PE, padding: int = 0, silent: bool = False) -> d
return pe_info
def show_pe_info(pe_info: dict, padding: int = 0) -> None:
def show_pe_info(pe_file: pefile.PE, padding: int = 0) -> None:
""" Print PE info from pefile StringTable """
pe_info: dict = get_pe_info(pe_file=pe_file, padding=padding)
if isinstance(pe_info, dict):
for title, value in pe_info.items():
info_title = title.decode('utf-8', 'ignore').strip()
info_value = value.decode('utf-8', 'ignore').strip()
info_title: str = title.decode('utf-8', 'ignore').strip()
info_value: str = value.decode('utf-8', 'ignore').strip()
if info_title and info_value:
printer(f'{info_title}: {info_value}', padding, new_line=False)