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46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
#!/usr/bin/env python
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"""
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Copyright (c) 2006-2019 sqlmap developers (http://sqlmap.org/)
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See the file 'LICENSE' for copying permission
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"""
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import re
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from lib.core.convert import getBytes
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from lib.core.data import conf
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from lib.core.exception import SqlmapUndefinedMethod
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class Syntax(object):
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"""
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This class defines generic syntax functionalities for plugins.
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"""
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def __init__(self):
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pass
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@staticmethod
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def _escape(expression, quote=True, escaper=None):
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retVal = expression
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if quote:
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for item in re.findall(r"'[^']*'+", expression):
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original = item[1:-1]
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if original and re.search(r"\[(SLEEPTIME|RAND)", original) is None: # e.g. '[SLEEPTIME]' marker
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replacement = escaper(original) if not conf.noEscape else original
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if replacement != original:
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retVal = retVal.replace(item, replacement)
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elif len(original) != len(getBytes(original)) and "n'%s'" % original not in retVal:
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retVal = retVal.replace("'%s'" % original, "n'%s'" % original)
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else:
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retVal = escaper(expression)
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return retVal
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@staticmethod
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def escape(expression, quote=True):
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errMsg = "'escape' method must be defined "
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errMsg += "inside the specific DBMS plugin"
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raise SqlmapUndefinedMethod(errMsg)
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