mirror of
https://github.com/sqlmapproject/sqlmap.git
synced 2024-11-25 11:03:47 +03:00
75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
#!/usr/bin/env python
|
|
|
|
"""
|
|
Copyright (c) 2006-2012 sqlmap developers (http://www.sqlmap.org/)
|
|
See the file 'doc/COPYING' for copying permission
|
|
"""
|
|
|
|
from lib.core.common import isDBMSVersionAtLeast
|
|
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):
|
|
if isDBMSVersionAtLeast('3'):
|
|
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 xrange(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
|