1#!/usr/bin/env python
2
3"""
4Copyright (c) 2006-2019 sqlmap developers (http://sqlmap.org/)
5See the file 'LICENSE' for copying permission
6"""
7
8from lib.core.convert import getOrds
9from plugins.generic.syntax import Syntax as GenericSyntax
10
11class Syntax(GenericSyntax):
12    @staticmethod
13    def escape(expression, quote=True):
14        """
15        >>> 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"
16        True
17        >>> Syntax.escape(u"SELECT 'abcd\xebfgh' FROM foobar") == "SELECT CHAR(97)+CHAR(98)+CHAR(99)+CHAR(100)+TO_UNICHAR(235)+CHAR(102)+CHAR(103)+CHAR(104) FROM foobar"
18        True
19        """
20
21        def escaper(value):
22            return "+".join("%s(%d)" % ("CHAR" if _ < 128 else "TO_UNICHAR", _) for _ in getOrds(value))
23
24        return Syntax._escape(expression, quote, escaper)
25