def get_ip_groups_json()

in lib/waf-update.py [0:0]

• 14 lines of code
• 3 McCabe index (conditional complexity)

def get_ip_groups_json(url, expected_hash):

    logging.debug("Updating from " + url)

    response = urllib.request.urlopen(url)
    ip_json = response.read()

    if expected_hash == 'seed':
        logging.info('hash set to seed, bypassing md5 check')
        return ip_json

    m = hashlib.md5()
    m.update(ip_json)
    hash = m.hexdigest()

    if hash != expected_hash:
        raise Exception('MD5 Mismatch: got ' + hash +
                        ' expected ' + expected_hash)

    return ip_json