cerberus/cerberus/api/auth.py

63 lines
1.7 KiB
Python

#
# Copyright (c) 2015 EUROGICIEL
#
# 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 cerberus.api.middleware import auth_token
from cerberus.openstack.common import log
STRATEGIES = {}
LOG = log.getLogger(__name__)
OPT_GROUP_NAME = 'keystone_authtoken'
class KeystoneAuth(object):
@classmethod
def _register_opts(cls, conf):
"""Register keystoneclient middleware options."""
if OPT_GROUP_NAME not in conf:
conf.register_opts(auth_token.opts, group=OPT_GROUP_NAME)
auth_token.CONF = conf
@classmethod
def install(cls, app, conf, public_routes):
"""Install Auth check on application."""
LOG.debug(u'Installing Keystone\'s auth protocol')
cls._register_opts(conf)
conf = dict(conf.get(OPT_GROUP_NAME))
return auth_token.AuthTokenMiddleware(app,
conf=conf,
public_api_routes=public_routes)
STRATEGIES['keystone'] = KeystoneAuth
def strategy(strategy):
"""Returns the Auth Strategy.
:param strategy: String representing
the strategy to use
"""
try:
return STRATEGIES[strategy]
except KeyError:
raise RuntimeError