sqlmap/plugins/dbms/postgresql/syntax.py

25 lines
867 B
Python

#!/usr/bin/env python2
"""
Copyright (c) 2006-2013 sqlmap developers (http://sqlmap.org/)
See the file 'doc/COPYING' for copying permission
"""
from plugins.generic.syntax import Syntax as GenericSyntax
class Syntax(GenericSyntax):
def __init__(self):
GenericSyntax.__init__(self)
@staticmethod
def escape(expression, quote=True):
"""
Note: PostgreSQL has a general problem with concenation operator (||) precedence (hence the parentheses enclosing)
e.g. SELECT 1 WHERE 'a'!='a'||'b' will trigger error ("argument of WHERE must be type boolean, not type text")
"""
def escaper(value):
return "(%s)" % "||".join("CHR(%d)" % ord(_) for _ in value) # Postgres CHR() function already accepts Unicode code point of character(s)
return Syntax._escape(expression, quote, escaper)