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 # import standard library

    16 

    17 # import interfaces

    18 from pyams_security.interfaces import IPermission

    19 

    20 # import packages

    21 from zope.interface import implementer

    22 from zope.schema.fieldproperty import FieldProperty

    23 

    24 

    25 @implementer(IPermission)

    26 class Permission(object):

    27     """Permission utility class"""

    28 

    29     id = FieldProperty(IPermission['id'])

    30     title = FieldProperty(IPermission['title'])

    31     description = FieldProperty(IPermission['description'])

    32 

    33     def __init__(self, values=None, **args):

    34         if not isinstance(values, dict):

    35             values = args

    36         self.id = values.get('id')

    37         self.title = values.get('title')

    38         self.description = values.get('description')

    39 

    40 

    41 def register_permission(config, permission):

    42     """Register a new permission

    43 

    44     Permissions registry is not required.

    45     But only registered permissions can be applied via default

    46     ZMI features

    47     """

    48     if not IPermission.providedBy(permission):

    49         permission = Permission(permission)

    50     config.registry.registerUtility(permission, IPermission, name=permission.id)