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Parse string to Guid

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This commit is contained in:
Dusty.P 2018-05-10 23:22:15 -08:00
parent 3491d3966c
commit 701e56121e
1 changed files with 26 additions and 4 deletions
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30
exts/imports/guid.py
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@ -1,6 +1,7 @@
from struct import Struct, pack from struct import Struct, pack
from math import log from math import log
# 0012d687-d687-0012-0000-000000000000
# 16 bytes, 11 arguments # 16 bytes, 11 arguments
MAXINT64 = 0xFFFFFFFFFFFFFFFF MAXINT64 = 0xFFFFFFFFFFFFFFFF
MAXINT8 = 0xFF MAXINT8 = 0xFF
@ -15,7 +16,7 @@ class Guid:
self.guid = (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) self.guid = (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
def get_guid(self, args) -> None: def get_guid(self, args) -> None:
s = Struct('i2h8B') s = Struct('I2H8B')
if len(args) == 1 and isinstance(args[0], bytes) and len(args[0]) == 16: if len(args) == 1 and isinstance(args[0], bytes) and len(args[0]) == 16:
b = args[0] b = args[0]
guid = s.pack((int(b[3]) << 24) | (int(b[2]) << 16) | (int(b[1]) << 8) | b[0], guid = s.pack((int(b[3]) << 24) | (int(b[2]) << 16) | (int(b[1]) << 8) | b[0],
@ -43,7 +44,7 @@ class Guid:
raise TypeError('Arguments don\'t match any allowed configuration') raise TypeError('Arguments don\'t match any allowed configuration')
guid = s.pack((int(b[3]) << 24) | (int(b[2]) << 16) | (int(b[1]) << 8) | b[0], guid = s.pack((int(b[3]) << 24) | (int(b[2]) << 16) | (int(b[1]) << 8) | b[0],
((int(b[5]) << 8) | b[4]), ((int(b[5]) << 8) | b[4]),
(int(b[7]) << 8) | b[6], ((int(b[7]) << 8) | b[6]),
*b[8:16] *b[8:16]
) )
self.guid = s.unpack(guid) self.guid = s.unpack(guid)
@ -60,11 +61,32 @@ class Guid:
*b[8:16] *b[8:16]
) )
self.guid = s.unpack(guid) self.guid = s.unpack(guid)
elif len(args) == 1 and isinstance(args[0], str): elif len(args) == 1 and isinstance(args[0], str) and len(args[0]) == 36:
pass # TODO Parse string input self.parse_string(args[0])
else: else:
raise TypeError('Arguments don\'t match any allowed configuration') raise TypeError('Arguments don\'t match any allowed configuration')
def parse_string(self, string):
if len(string) == 36:
if string[8] == '-' and string[13] == '-' and string[18] == '-' and string[23] == '-':
guid_str = string.split('-')
try:
self.guid = (int(guid_str[0], 16),
int(guid_str[1], 16),
int(guid_str[2], 16),
int(guid_str[3], 16) >> 8,
int(guid_str[3], 16) & MAXINT8,
int(guid_str[4], 16) >> 40,
int(guid_str[4], 16) >> 32,
int(guid_str[4], 16) >> 24,
int(guid_str[4], 16) >> 16,
int(guid_str[4], 16) >> 8,
int(guid_str[4], 16) & MAXINT8,
)
except ValueError:
raise TypeError('String is not formatted properly must be in format '
'00000000-0000-0000-0000-000000000000')
def to_string(self): def to_string(self):
output = '' output = ''
output += self.hexs_to_chars(self.guid[0] >> 24, self.guid[0] >> 16) output += self.hexs_to_chars(self.guid[0] >> 24, self.guid[0] >> 16)