81 lines
2.6 KiB
Python
81 lines
2.6 KiB
Python
# Copyright 2015 Rackspace
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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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from keystoneauth1 import loading as ks_loading
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from keystonemiddleware import auth_token
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from oslo_config import cfg
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from oslo_log import log as logging
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from octavia.common import constants
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LOG = logging.getLogger(__name__)
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_NOAUTH_PATHS = ['/', '/load-balancer/', '/healthcheck',
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'/load-balancer/healthcheck']
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class KeystoneSession(object):
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def __init__(self, section=constants.SERVICE_AUTH):
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self._session = None
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self._auth = None
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self.section = section
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ks_loading.register_auth_conf_options(cfg.CONF, self.section)
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ks_loading.register_session_conf_options(cfg.CONF, self.section)
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def get_session(self):
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"""Initializes a Keystone session.
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:return: a Keystone Session object
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"""
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if not self._session:
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self._session = ks_loading.load_session_from_conf_options(
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cfg.CONF, self.section, auth=self.get_auth())
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return self._session
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def get_auth(self):
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if not self._auth:
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self._auth = ks_loading.load_auth_from_conf_options(
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cfg.CONF, self.section)
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return self._auth
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def get_service_user_id(self):
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return self.get_auth().get_user_id(self.get_session())
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class SkippingAuthProtocol(auth_token.AuthProtocol):
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"""SkippingAuthProtocol to reach special endpoints
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Bypasses keystone authentication for special request paths, such
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as the api version discovery path.
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Note:
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SkippingAuthProtocol is lean customization
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of :py:class:`keystonemiddleware.auth_token.AuthProtocol`
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that disables keystone communication if the request path
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is in the _NOAUTH_PATHS list.
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"""
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def process_request(self, request):
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path = request.path
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if path in _NOAUTH_PATHS:
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LOG.debug('Request path is %s and it does not require keystone '
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'authentication', path)
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return None # return NONE to reach actual logic
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return super(SkippingAuthProtocol, self).process_request(request)
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