1 #

     2 # Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>

     3 # All Rights Reserved.

     4 #

     5 # This software is subject to the provisions of the Zope Public License,

     6 # Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.

     7 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED

     8 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

     9 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS

    10 # FOR A PARTICULAR PURPOSE.

    11 #

    12 

    13 __docformat__ = 'restructuredtext'

    14 

    15 

    16 # import standard library

    17 

    18 # import interfaces

    19 from pyams_form.interfaces.form import IFormSecurityContext, IFormContextPermissionChecker

    20 

    21 # import packages

    22 

    23 

    24 class ProtectedFormObjectMixin(object):

    25     """Form object protected by a given permission"""

    26 

    27     @property

    28     def permission(self):

    29         registry = self.request.registry

    30         checker = None

    31         context = IFormSecurityContext(self, None)

    32         if context is None:

    33             context = self.context

    34         view = getattr(self, '__parent__', None) or getattr(self, 'view', None) or getattr(self, 'table', None)

    35         if view is not None:

    36             checker = registry.queryMultiAdapter((context, self.request, view), IFormContextPermissionChecker)

    37         if checker is None:

    38             checker = registry.queryAdapter(context, IFormContextPermissionChecker)

    39         if checker is not None:

    40             return checker.edit_permission