Replace hash value for Cacti template xml file.

cacti_xml_hash_convert.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import re
import sys 
import hashlib

source = open( sys.argv[1] ).read()
result = re.finditer( r'hash\_([0-9]{6})(\w{32})', source )

for match in result:
    before = "hash_%s%s" % ( match.group(1), match.group(2) )
    after  = "hash_%s%s" % ( match.group(1), hashlib.md5( match.group(2) ).hexdigest() )
    sys.stderr.write( "before: %s, after: %s\n" % ( before, after ) ) 
    source = source.replace( before, after )

print source