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#!/usr/bin/env python
"""
Copyright (c) 2006-2022 sqlmap developers (https://sqlmap.org/)
See the file 'LICENSE' for copying permission
"""
import re
from lib.core.enums import PRIORITY
__priority__ = PRIORITY.HIGHEST
def dependencies():
pass
def tamper(payload, **kwargs):
"""
Replaces all occurrences of operator equal ('=') with 'RLIKE' counterpart
Tested against:
* MySQL 4, 5.0 and 5.5
Notes:
* Useful to bypass weak and bespoke web application firewalls that
filter the equal character ('=')
>>> tamper('SELECT * FROM users WHERE id=1')
'SELECT * FROM users WHERE id RLIKE 1'
"""
retVal = payload
if payload:
retVal = re.sub(r"\s*=\s*", " RLIKE ", retVal)
return retVal