#!/usr/bin/env python

"""
$Id$

Copyright (c) 2006-2012 sqlmap developers (http://www.sqlmap.org/)
See the file 'doc/COPYING' for copying permission
"""

import re

from lib.core.common import Backend
from lib.core.common import Format
from lib.core.common import hashDBWrite
from lib.core.common import intersect
from lib.core.common import readInput
from lib.core.common import singleTimeWarnMessage
from lib.core.convert import base64pickle
from lib.core.convert import base64unpickle
from lib.core.data import conf
from lib.core.data import kb
from lib.core.data import logger
from lib.core.enums import HASHDB_KEYS
from lib.core.enums import OS
from lib.core.settings import SUPPORTED_DBMS
from lib.core.settings import UNKNOWN_DBMS_VERSION

def setDbms(dbms):
    """
    @param dbms: database management system to be set into the knowledge
    base as fingerprint.
    @type dbms: C{str}
    """

    hashDBWrite(HASHDB_KEYS.DBMS, dbms)

    _ = "(%s)" % ("|".join([alias for alias in SUPPORTED_DBMS]))
    _ = re.search("^%s" % _, dbms, re.I)

    if _:
        dbms = _.group(1)

    Backend.setDbms(dbms)

    logger.info("the back-end DBMS is %s" % Backend.getDbms())

def setOs():
    """
    Example of kb.bannerFp dictionary:

    {
      'sp': set(['Service Pack 4']),
      'dbmsVersion': '8.00.194',
      'dbmsServicePack': '0',
      'distrib': set(['2000']),
      'dbmsRelease': '2000',
      'type': set(['Windows'])
    }
    """

    infoMsg = ""

    if not kb.bannerFp:
        return

    if "type" in kb.bannerFp:
        Backend.setOs(Format.humanize(kb.bannerFp["type"]))
        infoMsg = "the back-end DBMS operating system is %s" % Backend.getOs()

    if "distrib" in kb.bannerFp:
        kb.osVersion = Format.humanize(kb.bannerFp["distrib"])
        infoMsg += " %s" % kb.osVersion

    if "sp" in kb.bannerFp:
        kb.osSP = int(Format.humanize(kb.bannerFp["sp"]).replace("Service Pack ", ""))

    elif "sp" not in kb.bannerFp and Backend.isOs(OS.WINDOWS):
        kb.osSP = 0

    if Backend.getOs() and kb.osVersion and kb.osSP:
        infoMsg += " Service Pack %d" % kb.osSP

    if infoMsg:
        logger.info(infoMsg)

    hashDBWrite(HASHDB_KEYS.OS, Backend.getOs())