70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
# Copyright (c) 2013 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Middleware for handling authorization and authentication."""
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from keystonemiddleware import auth_token
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from keystonemiddleware import opts
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from zaqar.openstack.common import log
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STRATEGIES = {}
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LOG = log.getLogger(__name__)
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class KeystoneAuth(object):
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OPT_GROUP_NAME = 'keystone_authtoken'
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@classmethod
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def _register_opts(cls, conf):
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"""Register keystonemiddleware options."""
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options = []
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keystone_opts = opts.list_auth_token_opts()
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for n in keystone_opts:
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if (n[0] == cls.OPT_GROUP_NAME):
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options = n[1]
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break
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if cls.OPT_GROUP_NAME not in conf:
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conf.register_opts(options, group=cls.OPT_GROUP_NAME)
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auth_token.CONF = conf
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@classmethod
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def install(cls, app, conf):
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"""Install Auth check on application."""
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LOG.debug(u'Installing Keystone\'s auth protocol')
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cls._register_opts(conf)
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conf = dict(conf.get(cls.OPT_GROUP_NAME))
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return auth_token.AuthProtocol(app, conf=conf)
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STRATEGIES['keystone'] = KeystoneAuth
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def strategy(strategy):
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"""Returns the Auth Strategy.
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:param strategy: String representing
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the strategy to use
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"""
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try:
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return STRATEGIES[strategy]
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except KeyError:
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raise RuntimeError
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