blob: 0dd8150744cce4ebd8d8790e0dccfd7b47993e93 [file] [log] [blame]
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
from ming.base import Object
from ming import schema as S
EVERYONE, ALL_PERMISSIONS = None, '*'
class ACE(S.Object):
'''ACE - access control entry'''
ALLOW, DENY = 'ALLOW', 'DENY'
def __init__(self, permissions, **kwargs):
if permissions is None:
permission=S.String()
else:
permission=S.OneOf('*', *permissions)
super(ACE, self).__init__(
fields=dict(
access=S.OneOf(self.ALLOW, self.DENY),
role_id=S.ObjectId(),
permission=permission),
**kwargs)
@classmethod
def allow(cls, role_id, permission):
return Object(
access=cls.ALLOW,
role_id=role_id,
permission=permission)
@classmethod
def deny(cls, role_id, permission):
return Object(
access=cls.DENY,
role_id=role_id,
permission=permission)
@classmethod
def match(cls, ace, role_id, permission):
return (
ace.role_id in (role_id, EVERYONE)
and ace.permission in (permission, ALL_PERMISSIONS))
class ACL(S.Array):
def __init__(self, permissions=None, **kwargs):
super(ACL, self).__init__(
field_type=ACE(permissions), **kwargs)
DENY_ALL = ACE.deny(EVERYONE, ALL_PERMISSIONS)