121 lines
3.5 KiB
Python
121 lines
3.5 KiB
Python
# Copyright 2013 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Main entry point into the Credentials service."""
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import abc
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import six
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from keystone.common import dependency
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from keystone.common import manager
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from keystone import config
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from keystone import exception
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from keystone.openstack.common import log
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CONF = config.CONF
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LOG = log.getLogger(__name__)
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@dependency.provider('credential_api')
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class Manager(manager.Manager):
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"""Default pivot point for the Credential backend.
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See :mod:`keystone.common.manager.Manager` for more details on how this
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dynamically calls the backend.
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"""
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def __init__(self):
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super(Manager, self).__init__(CONF.credential.driver)
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@six.add_metaclass(abc.ABCMeta)
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class Driver(object):
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# credential crud
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@abc.abstractmethod
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def create_credential(self, credential_id, credential):
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"""Creates a new credential.
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:raises: keystone.exception.Conflict
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def list_credentials(self, **filters):
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"""List all credentials in the system applying filters.
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:returns: a list of credential_refs or an empty list.
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def get_credential(self, credential_id):
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"""Get a credential by ID.
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:returns: credential_ref
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:raises: keystone.exception.CredentialNotFound
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def update_credential(self, credential_id, credential):
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"""Updates an existing credential.
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:raises: keystone.exception.CredentialNotFound,
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keystone.exception.Conflict
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def delete_credential(self, credential_id):
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"""Deletes an existing credential.
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:raises: keystone.exception.CredentialNotFound
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def delete_credentials_for_project(self, project_id):
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"""Deletes all credentials for a project."""
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self._delete_credentials(lambda cr: cr['project_id'] == project_id)
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@abc.abstractmethod
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def delete_credentials_for_user(self, user_id):
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"""Deletes all credentials for a user."""
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self._delete_credentials(lambda cr: cr['user_id'] == user_id)
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def _delete_credentials(self, match_fn):
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"""Do the actual credential deletion work (default implementation).
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:param match_fn: function that takes a credential dict as the
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parameter and returns true or false if the
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identifier matches the credential dict.
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"""
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for cr in self.list_credentials():
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if match_fn(cr):
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try:
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self.credential_api.delete_credential(cr['id'])
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except exception.CredentialNotFound:
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LOG.debug('Deletion of credential is not required: %s',
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cr['id'])
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