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

import sys
import os.path
from ConfigParser import SafeConfigParser

if __name__ == '__main__':
    if len(sys.argv) < 2 or not os.path.isfile(sys.argv[1]):
        print "usage:", sys.argv[0], "authzfile"
        sys.exit(1)
    oldauthz = SafeConfigParser()
    oldauthz.read(sys.argv[1])

    # write a sample [aliases] section
    print '[aliases]'
    print '# jandd = jandd@cacert.org'
    print

    # write groups
    print '[groups]'
    for (groupname, members) in sorted(oldauthz.items('groups')):
        print "%s = %s" % (groupname, members)
    print

    # write authorization information    
    for section in [s for s in sorted(oldauthz.sections()) if s != 'groups']:
        print '[cacert:%s]' % section
        for (authitem, permission) in sorted(oldauthz.items(section)):
            print "%s = %s" % (authitem, permission)
        print