def _read_header(self, stream):
"""
Parse the header and write the values into self.header. Also sets
self.header_length.
"""
# KeePass 2.07 has version 1.01,
# 2.08 has 1.02,
# 2.09 has 2.00, 2.10 has 2.02, 2.11 has 2.04,
# 2.15 has 3.00.
# The first 2 bytes are critical (i.e. loading will fail, if the
# file version is too high), the last 2 bytes are informational.
# TODO implement version check
# the first header field starts at byte 12 after the signature
stream.seek(12)
while True:
# field_id is a single byte
field_id = stream_unpack(stream, None, 1, 'b')
# field_id >10 is undefined
if not field_id in self.header.fields.values():
raise IOError('Unknown header field found.')
# two byte (short) length of field data
length = stream_unpack(stream, None, 2, 'h')
if length > 0:
data = stream_unpack(stream, None, length,
'{}s'.format(length))
self.header.b[field_id] = data
# set position in data stream of end of header
if field_id == 0:
self.header_length = stream.tell()
break
def _read_header(self, stream):
"""
Parse the header and write the values into self.header. Also sets
self.header_length.
"""
# KeePass 2.07 has version 1.01,
# 2.08 has 1.02,
# 2.09 has 2.00, 2.10 has 2.02, 2.11 has 2.04,
# 2.15 has 3.00.
# The first 2 bytes are critical (i.e. loading will fail, if the
# file version is too high), the last 2 bytes are informational.
#TODO implement version check
# the first header field starts at byte 12 after the signature
stream.seek(12)
while True:
# field_id is a single byte
field_id = stream_unpack(stream, None, 1, 'b')
# field_id >10 is undefined
if not field_id in self.header.fields.values():
raise IOError('Unknown header field found.')
# two byte (short) length of field data
length = stream_unpack(stream, None, 2, 'h')
if length > 0:
data = stream_unpack(stream, None, length, '{}s'.format(length))
self.header.b[field_id] = data
# set position in data stream of end of header
if field_id == 0:
self.header_length = stream.tell()
break
def _read_header(self, stream):
"""
Parses the header and write the values into self.header. Also sets
self.header_length.
"""
# kdb3 has a fixed header length
self.header_length = 124
# skip file signature
stream.seek(8)
for field_id, length in enumerate(self.header.lengths):
data = stream_unpack(stream, None, length, '{}s'.format(length))
self.header.b[field_id] = data
# this is impossible, as long as noone messes with self.header.lengths
if self.header_length != stream.tell():
raise IOError('Unexpected header length! What did you do!?')
def _read_header(self, stream):
"""
Parses the header and write the values into self.header. Also sets
self.header_length.
"""
# kdb3 has a fixed header length
self.header_length = 124
# skip file signature
stream.seek(8)
field_id = 0
while True:
length = self.header.lengths[field_id]
data = stream_unpack(stream, None, length, '{}s'.format(length))
self.header.b[field_id] = data
field_id += 1
if field_id > 8:
break
# this is impossible, as long as noone messes with self.header.lengths
if self.header_length != stream.tell():
raise IOError('Unexpected header length! What did you do!?')
