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38 lines
1.4 KiB
Python
38 lines
1.4 KiB
Python
#!/usr/bin/env python
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"""
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Copyright (c) 2006-2026 sqlmap developers (https://sqlmap.org)
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See the file 'LICENSE' for copying permission
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"""
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from lib.core.convert import getOrds
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from plugins.generic.syntax import Syntax as GenericSyntax
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class Syntax(GenericSyntax):
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@staticmethod
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def escape(expression, quote=True):
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"""
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>>> Syntax.escape("SELECT 'abcdefgh' FROM foobar") == "SELECT CHAR(97)+CHAR(98)+CHAR(99)+CHAR(100)+CHAR(101)+CHAR(102)+CHAR(103)+CHAR(104) FROM foobar"
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True
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>>> Syntax.escape(u"SELECT 'abcd\xebfgh' FROM foobar") == "SELECT CHAR(97)+CHAR(98)+CHAR(99)+CHAR(100)+NCHAR(235)+CHAR(102)+CHAR(103)+CHAR(104) FROM foobar"
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True
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>>> Syntax.escape(u"SELECT '\U0001f600' FROM foobar") == "SELECT NCHAR(55357)+NCHAR(56832) FROM foobar"
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True
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"""
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def escaper(value):
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chars = []
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for _ in getOrds(value):
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if _ < 128:
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chars.append("CHAR(%d)" % _)
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elif _ < 0x10000:
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chars.append("NCHAR(%d)" % _)
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else:
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_ -= 0x10000
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chars.append("NCHAR(%d)+NCHAR(%d)" % (0xd800 + (_ >> 10), 0xdc00 + (_ & 0x3ff))) # SQL Server's NCHAR() only accepts BMP values without SC collation, so split into a surrogate pair
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return "+".join(chars)
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return Syntax._escape(expression, quote, escaper)
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