Source code for keystone.policy.backends.base

# Licensed 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.

import abc

import keystone.conf
from keystone import exception


CONF = keystone.conf.CONF


[docs] class PolicyDriverBase(object, metaclass=abc.ABCMeta): def _get_list_limit(self): return CONF.policy.list_limit or CONF.list_limit
[docs] @abc.abstractmethod def enforce(self, context, credentials, action, target): """Verify that a user is authorized to perform action. For more information on a full implementation of this see: `keystone.policy.backends.rules.Policy.enforce` """ raise exception.NotImplemented() # pragma: no cover
[docs] @abc.abstractmethod def create_policy(self, policy_id, policy): """Store a policy blob. :raises keystone.exception.Conflict: If a duplicate policy exists. """ raise exception.NotImplemented() # pragma: no cover
[docs] @abc.abstractmethod def list_policies(self): """List all policies.""" raise exception.NotImplemented() # pragma: no cover
[docs] @abc.abstractmethod def get_policy(self, policy_id): """Retrieve a specific policy blob. :raises keystone.exception.PolicyNotFound: If the policy doesn't exist. """ raise exception.NotImplemented() # pragma: no cover
[docs] @abc.abstractmethod def update_policy(self, policy_id, policy): """Update a policy blob. :raises keystone.exception.PolicyNotFound: If the policy doesn't exist. """ raise exception.NotImplemented() # pragma: no cover
[docs] @abc.abstractmethod def delete_policy(self, policy_id): """Remove a policy blob. :raises keystone.exception.PolicyNotFound: If the policy doesn't exist. """ raise exception.NotImplemented() # pragma: no cover