mirror of
https://github.com/moparisthebest/curl
synced 2024-11-14 05:25:06 -05:00
69 lines
2.5 KiB
Python
69 lines
2.5 KiB
Python
|
# Copyright (c) 2003-2016 CORE Security Technologies
|
||
|
|
#
|
||
|
|
# This software is provided under under a slightly modified version
|
||
|
|
# of the Apache Software License. See the accompanying LICENSE file
|
||
|
|
# for more information.
|
||
|
|
#
|
||
|
|
# Description:
|
||
|
|
# Generate UUID compliant with http://www.webdav.org/specs/draft-leach-uuids-guids-01.txt.
|
||
|
|
# A different, much simpler (not necessarily better) algorithm is used.
|
||
|
|
#
|
||
|
|
# Author:
|
||
|
|
# Javier Kohen (jkohen)
|
||
|
|
#
|
||
|
|
|
||
|
|
import re
|
||
|
|
|
||
|
|
from random import randrange
|
||
|
|
from struct import pack, unpack
|
||
|
|
|
||
|
|
def generate():
|
||
|
|
# UHm... crappy Python has an maximum integer of 2**31-1.
|
||
|
|
top = (1L<<31)-1
|
||
|
|
return pack("IIII", randrange(top), randrange(top), randrange(top), randrange(top))
|
||
|
|
|
||
|
|
def bin_to_string(uuid):
|
||
|
|
uuid1, uuid2, uuid3 = unpack('<LHH', uuid[:8])
|
||
|
|
uuid4, uuid5, uuid6 = unpack('>HHL', uuid[8:16])
|
||
|
|
return '%08X-%04X-%04X-%04X-%04X%08X' % (uuid1, uuid2, uuid3, uuid4, uuid5, uuid6)
|
||
|
|
|
||
|
|
def string_to_bin(uuid):
|
||
|
|
matches = re.match('([\dA-Fa-f]{8})-([\dA-Fa-f]{4})-([\dA-Fa-f]{4})-([\dA-Fa-f]{4})-([\dA-Fa-f]{4})([\dA-Fa-f]{8})', uuid)
|
||
|
|
(uuid1, uuid2, uuid3, uuid4, uuid5, uuid6) = map(lambda x: long(x, 16), matches.groups())
|
||
|
|
uuid = pack('<LHH', uuid1, uuid2, uuid3)
|
||
|
|
uuid += pack('>HHL', uuid4, uuid5, uuid6)
|
||
|
|
return uuid
|
||
|
|
|
||
|
|
def stringver_to_bin(s):
|
||
|
|
(maj,min) = s.split('.')
|
||
|
|
return pack('<H',int(maj)) + pack('<H',int(min))
|
||
|
|
|
||
|
|
def uuidtup_to_bin(tup):
|
||
|
|
if len(tup) != 2: return
|
||
|
|
return string_to_bin(tup[0]) + stringver_to_bin(tup[1])
|
||
|
|
|
||
|
|
def bin_to_uuidtup(bin):
|
||
|
|
assert len(bin) == 20
|
||
|
|
uuidstr = bin_to_string(bin[:16])
|
||
|
|
maj, min = unpack("<HH", bin[16:])
|
||
|
|
return uuidstr, "%d.%d" % (maj, min)
|
||
|
|
|
||
|
|
#input: string
|
||
|
|
#output: tuple (uuid,version)
|
||
|
|
#if version is not found in the input string "1.0" is returned
|
||
|
|
#example:
|
||
|
|
# "00000000-0000-0000-0000-000000000000 3.0" returns ('00000000-0000-0000-0000-000000000000','3.0')
|
||
|
|
# "10000000-2000-3000-4000-500000000000 version 3.0" returns ('00000000-0000-0000-0000-000000000000','3.0')
|
||
|
|
# "10000000-2000-3000-4000-500000000000 v 3.0" returns ('00000000-0000-0000-0000-000000000000','3.0')
|
||
|
|
# "10000000-2000-3000-4000-500000000000" returns ('00000000-0000-0000-0000-000000000000','1.0')
|
||
|
|
def string_to_uuidtup(s):
|
||
|
|
g = re.search("([A-Fa-f0-9]{8}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{12}).*?([0-9]{1,5}\.[0-9]{1,5})",s+" 1.0")
|
||
|
|
if g:
|
||
|
|
(u,v) = g.groups()
|
||
|
|
return (u,v)
|
||
|
|
return
|
||
|
|
|
||
|
|
def uuidtup_to_string(tup):
|
||
|
|
uuid, (maj, min) = tup
|
||
|
|
return "%s v%d.%d" % (uuid, maj, min)
|