#!/usr/bin/env python

"""
Copyright (c) 2006-2016 sqlmap developers (http://sqlmap.org/)
See the file 'doc/COPYING' for copying permission
"""

import re

from lib.core.enums import HTTP_HEADER
from lib.core.settings import WAF_ATTACK_VECTORS

__product__ = "ModSecurity: Open Source Web Application Firewall (Trustwave)"

def detect(get_page):
    retval = False

    for vector in WAF_ATTACK_VECTORS:
        page, headers, code = get_page(get=vector)
        retval = code == 501 and re.search(r"Reference #[0-9A-Fa-f.]+", page or "", re.I) is None
        retval |= re.search(r"Mod_Security|NOYB", headers.get(HTTP_HEADER.SERVER, ""), re.I) is not None
        retval |= code == 406  # specific for mod_security (and forks)
        retval |= "This error was generated by Mod_Security" in (page or "")
        if retval:
            break

    return retval
