mod_uid hex to cookie

m2c.py

import base64
import struct
import sys

def main():
   """
   http://www.lexa.ru/programs/mod-uid-eng.html

   Sample input:         'F705D40AACC48C54571D9D7A02CAFA59'
   yields sample output: 'CtQF91SMxKx6nR1XWfrKAg=='

   """
   x = sys.argv[1]
   l1 = int(x[:8],16)& 0xffffffff
   l2 = int(x[8:16],16) & 0xffffffff
   l3 = int(x[16:24],16) & 0xffffffff
   l4 = int(x[24:],16) & 0xffffffff
   s = struct.pack("<IIII", l1, l2, l3, l4)
   print base64.b64encode(s)

if __name__ == "__main__":
    main()