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50 lines
1.2 KiB
Python
50 lines
1.2 KiB
Python
#!/usr/bin/env python
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"""
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$Id$
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Copyright (c) 2006-2010 sqlmap developers (http://sqlmap.sourceforge.net/)
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See the file 'doc/COPYING' for copying permission
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"""
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import random
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from lib.core.priority import PRIORITY
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__priority__ = PRIORITY.LOW
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def tamper(value):
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"""
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Replaces ' ' with a random blank char from a set ('\r', '\n', '\t')
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Example: 'SELECT id FROM users' becomes 'SELECT\rid\tFROM\nusers'
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"""
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blanks = ['\r', '\n', '\t']
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retVal = value
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if value:
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retVal = ""
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quote, doublequote, firstspace = False, False, False
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for i in xrange(len(value)):
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if not firstspace:
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if value[i].isspace():
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firstspace = True
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retVal += random.choice(blanks)
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continue
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elif value[i] == '\'':
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quote = not quote
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elif value[i] == '"':
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doublequote = not doublequote
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elif value[i]==" " and not doublequote and not quote:
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retVal += random.choice(blanks)
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continue
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retVal += value[i]
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return retVal
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