Adding initial support for Informix (Issue #552)

plugins/dbms/informix/syntax.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2016 sqlmap developers (http://sqlmap.org/)
+See the file 'doc/COPYING' for copying permission
+"""
+
+import re
+
+from lib.core.common import randomStr
+from plugins.generic.syntax import Syntax as GenericSyntax
+
+class Syntax(GenericSyntax):
+    def __init__(self):
+        GenericSyntax.__init__(self)
+
+    @staticmethod
+    def escape(expression, quote=True):
+        """
+        >>> Syntax.escape("SELECT 'abcdefgh' FROM foobar")
+        'SELECT CHR(97)||CHR(98)||CHR(99)||CHR(100)||CHR(101)||CHR(102)||CHR(103)||CHR(104) FROM foobar'
+        """
+
+        def escaper(value):
+            return "||".join("CHR(%d)" % ord(_) for _ in value)
+
+        excluded = {}
+        for _ in re.findall(r"DBINFO\([^)]+\)", expression):
+            excluded[_] = randomStr()
+            expression = expression.replace(_, excluded[_])
+
+        retVal = Syntax._escape(expression, quote, escaper)
+
+        for _ in excluded.items():
+            retVal = retVal.replace(_[1], _[0])
+
+        return retVal