sqlmap/plugins/dbms/sqlite/syntax.py
Bernardo Damele a63e251b25 Ahead with code refactoring, related to r1502.
Fixed svn:keywords propset to all .py files.
2010-03-23 21:26:45 +00:00

94 lines
3.1 KiB
Python

#!/usr/bin/env python
"""
$Id$
This file is part of the sqlmap project, http://sqlmap.sourceforge.net.
Copyright (c) 2007-2010 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
"""
from lib.core.exception import sqlmapSyntaxException
from plugins.generic.syntax import Syntax as GenericSyntax
class Syntax(GenericSyntax):
def __init__(self):
GenericSyntax.__init__(self)
@staticmethod
def unescape(expression, quote=True):
# The following is not supported on SQLite 2
return expression
if quote:
expression = expression.replace("'", "''")
while True:
index = expression.find("''")
if index == -1:
break
firstIndex = index + 2
index = expression[firstIndex:].find("''")
if index == -1:
raise sqlmapSyntaxException, "Unenclosed ' in '%s'" % expression.replace("''", "'")
lastIndex = firstIndex + index
old = "''%s''" % expression[firstIndex:lastIndex]
unescaped = ""
for i in range(firstIndex, lastIndex):
unescaped += "X'%x'" % ord(expression[i])
if i < lastIndex - 1:
unescaped += "||"
#unescaped += ")"
expression = expression.replace(old, unescaped)
expression = expression.replace("''", "'")
else:
expression = "||".join("X'%x" % ord(c) for c in expression)
return expression
@staticmethod
def escape(expression):
# Example on SQLite 3, not supported on SQLite 2:
# select X'48'||X'656c6c6f20576f726c6400'; -- Hello World
while True:
index = expression.find("X'")
if index == -1:
break
firstIndex = index
index = expression[firstIndex+2:].find("'")
if index == -1:
raise sqlmapSyntaxException, "Unenclosed ' in '%s'" % expression
lastIndex = firstIndex + index + 3
old = expression[firstIndex:lastIndex]
oldUpper = old.upper()
oldUpper = oldUpper.replace("X'", "").replace("'", "")
for i in xrange(len(oldUpper)/2):
char = oldUpper[i*2:i*2+2]
escaped = "'%s'" % chr(int(char, 16))
expression = expression.replace(old, escaped)
return expression