# 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.

from keystoneauth1 import loading
from keystoneauth1 import noauth


class NoAuth(loading.BaseLoader):
    """Use no tokens to perform requests.

    This must be used together with adapter.Adapter.endpoint_override
    to instantiate clients for services deployed in noauth/standalone mode.

    There is no fetching a service catalog or determining scope information
    and so it cannot be used by clients that expect use this scope information.

    """

    @property
    def plugin_class(self):
        return noauth.NoAuth

    def get_options(self):
        return []
