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101 lines
3.7 KiB
Python
101 lines
3.7 KiB
Python
#!/usr/bin/env python
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"""
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$Id$
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Copyright (c) 2006-2011 sqlmap developers (http://www.sqlmap.org/)
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See the file 'doc/COPYING' for copying permission
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"""
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import urllib2
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import urlparse
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from lib.core.data import conf
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from lib.core.data import logger
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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.enums import HTTPHEADER
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from lib.core.exception import sqlmapConnectionException
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from lib.core.threads import getCurrentThreadData
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from lib.request.basic import decodePage
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class SmartRedirectHandler(urllib2.HTTPRedirectHandler):
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# maximum number of redirections to any single URL
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# this is needed because of the state that cookies introduce
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max_repeats = 4
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# maximum total number of redirections (regardless of URL) before
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# assuming we're in a loop
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max_redirections = 10
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def common_http_redirect(self, result, headers, code, content, msg):
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content = decodePage(content, headers.get(HTTPHEADER.CONTENT_ENCODING), headers.get(HTTPHEADER.CONTENT_TYPE))
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threadData = getCurrentThreadData()
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threadData.lastRedirectMsg = (threadData.lastRequestUID, content)
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responseMsg = "HTTP response "
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responseMsg += "[#%d] (%d %s):\n" % (threadData.lastRequestUID, code, getUnicode(msg))
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if headers:
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logHeaders = "\n".join(["%s: %s" % (key.capitalize() if isinstance(key, basestring) else key, getUnicode(value)) for (key, value) in headers.items()])
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else:
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logHeaders = ""
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logHTTPTraffic(threadData.lastRequestMsg, "%s%s" % (responseMsg, logHeaders))
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responseMsg += getUnicode(logHeaders)
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logger.log(7, responseMsg)
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if result:
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if "location" in headers:
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result.redurl = headers.getheaders("location")[0].split("?")[0]
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elif "uri" in headers:
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result.redurl = headers.getheaders("uri")[0].split("?")[0]
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if hasattr(result, 'redurl'):
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if not urlparse.urlsplit(result.redurl).netloc:
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result.redurl = urlparse.urljoin(conf.url, result.redurl)
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if "set-cookie" in headers:
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result.setcookie = headers["set-cookie"].split("; path")[0]
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result.redcode = code
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return result
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def http_error_301(self, req, fp, code, msg, headers):
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self.infinite_loop_check(req)
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content = None
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try:
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content = fp.read()
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except Exception, msg:
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dbgMsg = "there was a problem while retrieving "
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dbgMsg += "redirect response content (%s)" % msg
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logger.debug(dbgMsg)
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result = urllib2.HTTPRedirectHandler.http_error_301(self, req, fp, code, msg, headers)
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return self.common_http_redirect(result, headers, code, content, msg)
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def http_error_302(self, req, fp, code, msg, headers):
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self.infinite_loop_check(req)
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content = None
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try:
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content = fp.read()
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except Exception, msg:
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dbgMsg = "there was a problem while retrieving "
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dbgMsg += "redirect response content (%s)" % msg
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logger.debug(dbgMsg)
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result = urllib2.HTTPRedirectHandler.http_error_302(self, req, fp, code, msg, headers)
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return self.common_http_redirect(result, headers, code, content, msg)
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def infinite_loop_check(self, req):
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if hasattr(req, 'redirect_dict') and (req.redirect_dict.get(req.get_full_url(), 0) >= self.max_repeats or len(req.redirect_dict) >= self.max_redirections):
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errMsg = "infinite redirect loop detected (%s). " % ", ".join(item for item in req.redirect_dict.keys())
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errMsg += "please check all provided parameters and/or provide missing ones."
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raise sqlmapConnectionException, errMsg
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