mirror of
https://github.com/sqlmapproject/sqlmap.git
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346 lines
12 KiB
Python
346 lines
12 KiB
Python
#!/usr/bin/env python
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"""
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$Id$
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This file is part of the sqlmap project, http://sqlmap.sourceforge.net.
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Copyright (c) 2007-2010 Bernardo Damele A. G. <bernardo.damele@gmail.com>
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Copyright (c) 2006 Daniele Bellucci <daniele.bellucci@gmail.com>
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sqlmap is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation version 2 of the License.
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sqlmap is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along
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with sqlmap; if not, write to the Free Software Foundation, Inc., 51
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Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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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.common import readInput
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from lib.core.common import getUnicode
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from lib.core.convert import urlencode
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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.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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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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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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page = ""
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cookieStr = ""
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requestMsg = "HTTP request:\n%s " % 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("GET") and not get:
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get = conf.parameters["GET"]
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if get:
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get = urlencode(get)
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url = "%s?%s" % (url, get)
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requestMsg += "?%s" % get
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if conf.method == "POST":
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if conf.parameters.has_key("POST") and not post:
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post = conf.parameters["POST"]
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requestMsg += " HTTP/1.1"
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# Perform HTTP request
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headers = forgeHeaders(cookie, ua)
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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 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 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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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(9, requestMsg)
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conn = urllib2.urlopen(req)
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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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# 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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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"
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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"
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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)" % e.code
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logger.warn(warnMsg)
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return None, None
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code = e.code
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status = e.msg
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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.warn(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 += "(%s - %d):\n" % (status, code)
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if conf.verbose <= 4:
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responseMsg += getUnicode(responseHeaders.__str__())
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elif conf.verbose > 4:
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responseMsg += "%s\n%s\n" % (responseHeaders, page)
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logger.log(8, 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):
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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 != "URI"
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if not place:
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place = kb.injPlace
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if "GET" in conf.parameters:
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get = conf.parameters["GET"] if place != "GET" or not value else value
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if "POST" in conf.parameters:
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post = conf.parameters["POST"] if place != "POST" or not value else value
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if "Cookie" in conf.parameters:
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cookie = conf.parameters["Cookie"] if place != "Cookie" or not value else value
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if "User-Agent" in conf.parameters:
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ua = conf.parameters["User-Agent"] if place != "User-Agent" or not value else value
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if "URI" in conf.parameters:
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uri = conf.url if 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 kb.nullConnection:
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if kb.nullConnection == "HEAD":
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_, headers = Connect.getPage(url=uri, get=get, post=post, cookie=cookie, ua=ua, silent=silent, method="HEAD", auxHeaders=auxHeaders, raise404=raise404)
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pageLength = int(headers['Content-Length'])
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elif kb.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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pageLength = int(headers['Content-Range'][headers['Content-Range'].find('/') + 1:])
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else:
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kb.nullConnection = None
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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, raise404=raise404)
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if content:
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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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