Source code for zope.security.proxy

##############################################################################
#
# Copyright (c) 2001, 2002 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Helper functions for Proxies.
"""
__docformat__ = 'restructuredtext'


from zope.security._proxy import getChecker
from zope.security._proxy import getObject
from zope.security._proxy import _Proxy
Proxy = _Proxy

# We need the injection of DecoratedSecurityCheckerDescriptor into
# zope.location's LocationProxy as soon someone uses security proxies by
# importing zope.security.proxy:
import zope.security.decorator


removeSecurityProxy = getObject

# This import represents part of the API for this module
from zope.security.checker import ProxyFactory

[docs]def getTestProxyItems(proxy): """Return a sorted sequence of checker names and permissions for testing """ checker = getChecker(proxy) return sorted(checker.get_permissions.items())
builtin_isinstance = None
[docs]def isinstance(object, cls): """Test whether an object is an instance of a type. This works even if the object is security proxied: """ global builtin_isinstance if builtin_isinstance is None: builtin_isinstance = __builtins__['isinstance'] # The removeSecurityProxy call is OK here because it is *only* # being used for isinstance return builtin_isinstance(removeSecurityProxy(object), cls)