#!/usr/bin/env python

# ICQ Update File Creator by Daniel Seither (post@tiwoc.de)
#
# Parameter:
# filename of .exe that should be delivered as an update for ICQ.exe
#
# Overwrites ICQ.zip and updates.xml in the current directory
# without a warning!

import sys, os
from hashlib import md5
from zipfile import ZipFile, ZIP_DEFLATED

if len(sys.argv) < 2:
        print "argument missing"
        sys.exit(1)

f = open(sys.argv[1])
payload = f.read()
f.close()

payload_checksum = md5(payload).hexdigest()
payload_size = len(payload)

f = ZipFile('ICQ.zip', 'w')
f.write(sys.argv[1], 'ICQ.exe', ZIP_DEFLATED)
f.close()
        
payload_compressed = os.path.getsize('ICQ.zip')
        
updatesfile = ('<manifest productid="30009" build="9999" serial="9">'
        + '<host url="http://update.icq.com/cb/icq6/30009/"/>'
        + '<file id="31" path="ICQ.exe" hash="%s" size="%s">'
        + '<file format="zip" size="%s" url="ICQ.zip"/>'
        + '</file></manifest>'
        ) % (payload_checksum, payload_size, payload_compressed)

updatesfile_checksum = md5(updatesfile).hexdigest()
updatesfile = '<!--%s-->\r\n%s' % (updatesfile_checksum, updatesfile)

f = open('updates.xml', 'w')
f.write(updatesfile)
f.close