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89 lines
2.9 KiB
Python
89 lines
2.9 KiB
Python
#!/usr/bin/env python
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"""
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$Id$
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This file is part of the sqlmap project, http://sqlmap.sourceforge.net.
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Copyright (c) 2007-2010 Bernardo Damele A. G. <bernardo.damele@gmail.com>
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Copyright (c) 2006 Daniele Bellucci <daniele.bellucci@gmail.com>
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sqlmap is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation version 2 of the License.
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sqlmap is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along
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with sqlmap; if not, write to the Free Software Foundation, Inc., 51
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Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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"""
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from lib.core.exception import sqlmapSyntaxException
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from plugins.generic.syntax import Syntax as GenericSyntax
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class Syntax(GenericSyntax):
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def __init__(self):
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GenericSyntax.__init__(self)
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@staticmethod
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def unescape(expression, quote=True):
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if quote:
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while True:
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index = expression.find("'")
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if index == -1:
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break
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firstIndex = index + 1
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index = expression[firstIndex:].find("'")
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if index == -1:
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raise sqlmapSyntaxException, "Unenclosed ' in '%s'" % expression
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lastIndex = firstIndex + index
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old = "'%s'" % expression[firstIndex:lastIndex]
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unescaped = ""
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for i in range(firstIndex, lastIndex):
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unescaped += "ASCII_CHAR(%d)" % (ord(expression[i]))
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if i < lastIndex - 1:
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unescaped += "||"
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expression = expression.replace(old, unescaped)
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else:
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unescaped = "".join("ASCII_CHAR(%d)||" % ord(c) for c in expression)
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if unescaped[-1] == "||":
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unescaped = unescaped[:-1]
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expression = unescaped
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return expression
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@staticmethod
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def escape(expression):
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while True:
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index = expression.find("ASCII_CHAR(")
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if index == -1:
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break
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firstIndex = index
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index = expression[firstIndex:].find(")")
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if index == -1:
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raise sqlmapSyntaxException, "Unenclosed ) in '%s'" % expression
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lastIndex = firstIndex + index + 1
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old = expression[firstIndex:lastIndex]
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oldUpper = old.upper()
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oldUpper = oldUpper.lstrip("ASCII_CHAR(").rstrip(")")
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oldUpper = oldUpper.split("||")
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escaped = "'%s'" % "".join([chr(int(char)) for char in oldUpper])
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expression = expression.replace(old, escaped).replace("'||'", "")
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return expression
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