mirror of https://github.com/MISP/PyMISP
59 lines
2.3 KiB
Python
59 lines
2.3 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from io import BytesIO
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from . import FileObject
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from ..exceptions import MISPObjectException
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import logging
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from typing import Optional
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logger = logging.getLogger('pymisp')
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try:
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import lief
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lief.logging.disable()
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HAS_LIEF = True
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from .peobject import make_pe_objects
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from .elfobject import make_elf_objects
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from .machoobject import make_macho_objects
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except AttributeError:
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HAS_LIEF = False
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logger.critical('You need lief >= 0.11.0. The quick and dirty fix is: pip3 install --force pymisp[fileobjects]')
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except ImportError:
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HAS_LIEF = False
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class FileTypeNotImplemented(MISPObjectException):
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pass
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def make_binary_objects(filepath: Optional[str] = None, pseudofile: Optional[BytesIO] = None, filename: Optional[str] = None, standalone: bool = True, default_attributes_parameters: dict = {}):
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misp_file = FileObject(filepath=filepath, pseudofile=pseudofile, filename=filename,
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standalone=standalone, default_attributes_parameters=default_attributes_parameters)
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if HAS_LIEF and (filepath or (pseudofile and filename)):
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if filepath:
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lief_parsed = lief.parse(filepath=filepath)
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elif pseudofile and filename:
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lief_parsed = lief.parse(raw=pseudofile.getvalue(), name=filename)
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else:
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logger.critical('You need either a filepath, or a pseudofile and a filename.')
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lief_parsed = None
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if isinstance(lief_parsed, lief.lief_errors):
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logger.warning('Got an error parsing the file: {lief_parsed}')
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elif isinstance(lief_parsed, lief.PE.Binary):
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return make_pe_objects(lief_parsed, misp_file, standalone, default_attributes_parameters)
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elif isinstance(lief_parsed, lief.ELF.Binary):
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return make_elf_objects(lief_parsed, misp_file, standalone, default_attributes_parameters)
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elif isinstance(lief_parsed, lief.MachO.Binary):
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return make_macho_objects(lief_parsed, misp_file, standalone, default_attributes_parameters)
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else:
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logger.critical(f'Unexpected type from lief: {type(lief_parsed)}')
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if not HAS_LIEF:
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logger.warning('Please install lief, documentation here: https://github.com/lief-project/LIEF')
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return misp_file, None, []
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