mirror of
https://github.com/sqlmapproject/sqlmap.git
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394 lines
14 KiB
Python
394 lines
14 KiB
Python
#!/usr/bin/env python
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"""
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$Id$
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Copyright (c) 2006-2010 sqlmap developers (http://sqlmap.sourceforge.net/)
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See the file 'doc/COPYING' for copying permission
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"""
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import httplib
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import re
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import socket
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import time
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import urllib2
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import urlparse
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import traceback
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from lib.contrib import multipartpost
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from lib.core.agent import agent
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from lib.core.common import readInput
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from lib.core.common import getFilteredPageContent
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from lib.core.common import getUnicode
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from lib.core.common import logHTTPTraffic
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from lib.core.convert import urlencode
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from lib.core.common import urlEncodeCookieValues
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from lib.core.data import conf
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from lib.core.data import kb
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from lib.core.data import logger
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from lib.core.common import sanitizeAsciiString
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from lib.core.enums import HTTPMETHOD
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from lib.core.enums import NULLCONNECTION
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from lib.core.enums import PLACE
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from lib.core.exception import sqlmapConnectionException
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from lib.request.basic import decodePage
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from lib.request.basic import forgeHeaders
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from lib.request.basic import parseResponse
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from lib.request.direct import direct
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from lib.request.comparison import comparison
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from lib.request.methodrequest import MethodRequest
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from lib.utils.checkpayload import checkPayload
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class Connect:
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"""
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This class defines methods used to perform HTTP requests
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"""
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@staticmethod
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def __getPageProxy(**kwargs):
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return Connect.getPage(**kwargs)
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@staticmethod
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def getPage(**kwargs):
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"""
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This method connects to the target url or proxy and returns
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the target url page content
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"""
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if conf.delay is not None and isinstance(conf.delay, (int, float)) and conf.delay > 0:
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time.sleep(conf.delay)
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elif conf.cpuThrottle:
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delay = 0.00001 * (conf.cpuThrottle ** 2)
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time.sleep(delay)
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kb.locks.reqLock.acquire()
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kb.lastRequestUID += 1
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requestID = kb.lastRequestUID
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kb.locks.reqLock.release()
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url = kwargs.get('url', conf.url).replace(" ", "%20")
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get = kwargs.get('get', None)
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post = kwargs.get('post', None)
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method = kwargs.get('method', None)
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cookie = kwargs.get('cookie', None)
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ua = kwargs.get('ua', None)
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direct = kwargs.get('direct', False)
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multipart = kwargs.get('multipart', False)
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silent = kwargs.get('silent', False)
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raise404 = kwargs.get('raise404', True)
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auxHeaders = kwargs.get('auxHeaders', None)
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response = kwargs.get('response', False)
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page = ""
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cookieStr = ""
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requestMsg = "HTTP request [#%d]:\n%s " % (requestID, conf.method)
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requestMsg += "%s" % urlparse.urlsplit(url)[2] or "/"
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responseMsg = "HTTP response "
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requestHeaders = ""
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responseHeaders = ""
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try:
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if silent:
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socket.setdefaulttimeout(3)
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if direct:
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if "?" in url:
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url, params = url.split("?")
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params = urlencode(params)
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url = "%s?%s" % (url, params)
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requestMsg += "?%s" % params
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elif multipart:
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# Needed in this form because of potential circle dependency
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# problem (option -> update -> connect -> option)
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from lib.core.option import proxyHandler
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multipartOpener = urllib2.build_opener(proxyHandler, multipartpost.MultipartPostHandler)
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conn = multipartOpener.open(url, multipart)
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page = conn.read()
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responseHeaders = conn.info()
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page = decodePage(page, responseHeaders.get("Content-Encoding"), responseHeaders.get("Content-Type"))
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return page
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else:
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if conf.parameters.has_key(PLACE.GET) and not get:
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get = conf.parameters[PLACE.GET]
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if get:
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url = "%s?%s" % (url, get)
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requestMsg += "?%s" % get
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if conf.method == HTTPMETHOD.POST:
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if conf.parameters.has_key(PLACE.POST) and not post:
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post = conf.parameters[PLACE.POST]
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requestMsg += " %s" % httplib.HTTPConnection._http_vsn_str
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# Perform HTTP request
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headers = forgeHeaders(cookie, ua)
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headers["Referer"] = "%s://%s" % (conf.scheme, conf.hostname)
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if kb.authHeader:
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headers["Authorization"] = kb.authHeader
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if kb.proxyAuthHeader:
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headers["Proxy-authorization"] = kb.proxyAuthHeader
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if auxHeaders:
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for key, item in auxHeaders.items():
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headers[key] = item
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if method:
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req = MethodRequest(url, post, headers)
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req.set_method(method)
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else:
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req = urllib2.Request(url, post, headers)
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if not conf.dropSetCookie and conf.cj:
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for _, cookie in enumerate(conf.cj):
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if not cookieStr:
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cookieStr = "Cookie: "
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cookie = getUnicode(cookie)
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index = cookie.index(" for ")
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cookieStr += "%s; " % cookie[8:index]
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conn = urllib2.urlopen(req)
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if not req.has_header("Accept-Encoding"):
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requestHeaders += "Accept-Encoding: identity\n"
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requestHeaders += "\n".join(["%s: %s" % (header, value) for header, value in req.header_items()])
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if not req.has_header("Cookie") and cookieStr:
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requestHeaders += "\n%s" % cookieStr[:-2]
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if not req.has_header("Connection"):
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requestHeaders += "\nConnection: close"
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requestMsg += "\n%s" % requestHeaders
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if post:
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requestMsg += "\n%s" % post
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requestMsg += "\n"
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logger.log(8, requestMsg)
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if not kb.authHeader and req.has_header("Authorization"):
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kb.authHeader = req.get_header("Authorization")
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if not kb.proxyAuthHeader and req.has_header("Proxy-authorization"):
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kb.proxyAuthHeader = req.get_header("Proxy-authorization")
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if hasattr(conn, "redurl") and hasattr(conn, "redcode") and not conf.redirectHandled:
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msg = "sqlmap got a %d redirect to " % conn.redcode
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msg += "%s - What target address do you " % conn.redurl
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msg += "want to use from now on? %s " % conf.url
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msg += "(default) or provide another target address based "
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msg += "also on the redirection got from the application\n"
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while True:
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choice = readInput(msg, default="1")
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if not choice or choice == "1":
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pass
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else:
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conf.url = choice
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return Connect.__getPageProxy(**kwargs)
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break
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conf.redirectHandled = True
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# Reset the number of connection retries
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conf.retriesCount = 0
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# Return response object
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if response:
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return conn, None
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# Get HTTP response
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page = conn.read()
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code = conn.code
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status = conn.msg
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responseHeaders = conn.info()
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page = decodePage(page, responseHeaders.get("Content-Encoding"), responseHeaders.get("Content-Type"))
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except urllib2.HTTPError, e:
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code = e.code
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status = e.msg
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if e.code == 401:
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errMsg = "not authorized, try to provide right HTTP "
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errMsg += "authentication type and valid credentials (%d)" % code
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raise sqlmapConnectionException, errMsg
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elif e.code == 404 and raise404:
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errMsg = "page not found (%d)" % code
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raise sqlmapConnectionException, errMsg
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else:
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try:
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page = e.read()
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responseHeaders = e.info()
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except socket.timeout:
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warnMsg = "connection timed out while trying "
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warnMsg += "to get error page information (%d)" % code
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logger.warn(warnMsg)
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return None, None
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debugMsg = "got HTTP error code: %d (%s)" % (code, status)
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logger.debug(debugMsg)
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except (urllib2.URLError, socket.error, socket.timeout, httplib.BadStatusLine), e:
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tbMsg = traceback.format_exc()
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if "URLError" in tbMsg or "error" in tbMsg:
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warnMsg = "unable to connect to the target url"
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elif "timeout" in tbMsg:
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warnMsg = "connection timed out to the target url"
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elif "BadStatusLine" in tbMsg:
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warnMsg = "the target url responded with an unknown HTTP "
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warnMsg += "status code, try to force the HTTP User-Agent "
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warnMsg += "header with option --user-agent or -a"
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else:
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warnMsg = "unable to connect to the target url"
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if "BadStatusLine" not in tbMsg:
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warnMsg += " or proxy"
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if silent:
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return None, None
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elif conf.retriesCount < conf.retries:
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conf.retriesCount += 1
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warnMsg += ", sqlmap is going to retry the request"
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logger.critical(warnMsg)
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time.sleep(1)
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socket.setdefaulttimeout(conf.timeout)
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return Connect.__getPageProxy(**kwargs)
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else:
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socket.setdefaulttimeout(conf.timeout)
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raise sqlmapConnectionException, warnMsg
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socket.setdefaulttimeout(conf.timeout)
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page = sanitizeAsciiString(page)
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parseResponse(page, responseHeaders)
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responseMsg += "[#%d] (%d %s):\n" % (requestID, code, status)
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logHeaders = "\n".join(["%s: %s" % (key.capitalize() if isinstance(key, basestring) else key, value) for (key, value) in responseHeaders.items()])
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logHTTPTraffic(requestMsg, "%s%s\n\n%s" % (responseMsg, logHeaders, page))
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if conf.verbose <= 5:
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responseMsg += getUnicode(logHeaders)
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elif conf.verbose > 5:
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responseMsg += "%s\n%s\n" % (logHeaders, page)
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logger.log(7, responseMsg)
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return page, responseHeaders
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@staticmethod
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def queryPage(value=None, place=None, content=False, getSeqMatcher=False, silent=False, method=None, auxHeaders=None, response=False, raise404 = None):
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"""
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This method calls a function to get the target url page content
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and returns its page MD5 hash or a boolean value in case of
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string match check ('--string' command line parameter)
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"""
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if conf.direct:
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return direct(value, content)
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get = None
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post = None
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cookie = None
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ua = None
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page = None
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pageLength = None
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uri = None
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raise404 = place != PLACE.URI if raise404 is None else raise404
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toUrlencode = { PLACE.GET: True, PLACE.POST: True, PLACE.COOKIE: conf.cookieUrlencode, PLACE.UA: True, PLACE.URI: False }
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if not place:
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place = kb.injPlace
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payload = agent.extractPayload(value)
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if payload:
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if kb.tamperFunctions:
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for function in kb.tamperFunctions:
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payload = function(payload)
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value = agent.replacePayload(value, payload)
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logger.log(9, payload)
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if place == PLACE.COOKIE and conf.cookieUrlencode:
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value = agent.removePayloadDelimiters(value, False)
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value = urlEncodeCookieValues(value)
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elif place:
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value = agent.removePayloadDelimiters(value, toUrlencode[place])
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if conf.checkPayload:
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checkPayload(value)
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if PLACE.GET in conf.parameters:
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get = conf.parameters[PLACE.GET] if place != PLACE.GET or not value else value
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if PLACE.POST in conf.parameters:
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post = conf.parameters[PLACE.POST] if place != PLACE.POST or not value else value
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if PLACE.COOKIE in conf.parameters:
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cookie = conf.parameters[PLACE.COOKIE] if place != PLACE.COOKIE or not value else value
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if PLACE.UA in conf.parameters:
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ua = conf.parameters[PLACE.UA] if place != PLACE.UA or not value else value
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if PLACE.URI in conf.parameters:
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uri = conf.url if place != PLACE.URI or not value else value
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else:
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uri = conf.url
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if conf.safUrl and conf.saFreq > 0:
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kb.queryCounter += 1
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if kb.queryCounter % conf.saFreq == 0:
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Connect.getPage(url=conf.safUrl, cookie=cookie, direct=True, silent=True, ua=ua)
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if not content and not response and kb.nullConnection:
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if kb.nullConnection == NULLCONNECTION.HEAD:
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method = HTTPMETHOD.HEAD
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elif kb.nullConnection == NULLCONNECTION.RANGE:
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if not auxHeaders:
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auxHeaders = {}
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auxHeaders["Range"] = "bytes=-1"
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_, headers = Connect.getPage(url=uri, get=get, post=post, cookie=cookie, ua=ua, silent=silent, method=method, auxHeaders=auxHeaders, raise404=raise404)
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if kb.nullConnection == NULLCONNECTION.HEAD and 'Content-Length' in headers:
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pageLength = int(headers['Content-Length'])
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elif kb.nullConnection == NULLCONNECTION.RANGE and 'Content-Range' in headers:
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pageLength = int(headers['Content-Range'][headers['Content-Range'].find('/') + 1:])
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if not pageLength:
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page, headers = Connect.getPage(url=uri, get=get, post=post, cookie=cookie, ua=ua, silent=silent, method=method, auxHeaders=auxHeaders, response=response, raise404=raise404)
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if conf.textOnly:
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page = getFilteredPageContent(page)
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if content or response:
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return page, headers
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elif pageLength or page:
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return comparison(page, headers, getSeqMatcher, pageLength)
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else:
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return False
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