55 lines
1.7 KiB
Python
55 lines
1.7 KiB
Python
import logging
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import struct
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from extract_msg import constants
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from extract_msg.utils import divide # , round_up
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logger = logging.getLogger(__name__)
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logger.addHandler(logging.NullHandler())
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# TODO move this function to utils.py:
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def round_up(inp, mult):
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"""
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Rounds :param inp: up to the nearest multiple of :param mult:.
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"""
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return inp + (mult - inp) % mult
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# Temporary class code to make references like `constants.CONSTANT` work:
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class constants(object):
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# Structs used by named.py
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STNP_NAM = struct.Struct('<i')
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STNP_ENT = struct.Struct('<IHH')
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# TODO move these out of the class and into constants.py:
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# TODO
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class Named(object):
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def __init__(self, msg): # Temporarily uses the Message instance as the input
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super(Named, self).__init__()
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guid_stream = msg._getStream('__nameid_version1.0/__substg1.0_00020102')
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entry_stream = msg._getStream('__nameid_version1.0/__substg1.0_00030102')
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names_stream = msg._getStream('__nameid_version1.0/__substg1.0_00040102')
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gl = len(guid_stream)
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el = len(entry_stream)
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nl = len(names_stream)
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# TODO guid stream parsing
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# TODO entry_stream parsing
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entries = []
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for x in divide(entry_stream, 8):
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tmp = constants.STNP_ENT.unpack(x)
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entries.append({
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'id': tmp[0],
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'pid': tmp[2],
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'guid': tmp[1] >> 1,
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'pkind': tmp[1] & 1,
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})
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names = []
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pos = 0
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while pos < nl:
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l = constants.STNP_NAM.unpack(names_stream[pos:pos + 4])[0]
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pos += 4
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names.append(names_stream[pos:pos + l].decode('utf_16_le'))
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pos += round_up(l, 4)
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