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OpenStack Study: auth.py**** CubicPower OpenStack Study ****
# vim: tabstop=4 shiftwidth=4 softtabstop=4 # Copyright 2012 OpenStack Foundation # # 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 oslo.config import cfg import webob.dec import webob.exc from neutron import context from neutron.openstack.common import log as logging from neutron.openstack.common.middleware import request_id from neutron import wsgi LOG = logging.getLogger(__name__)
**** CubicPower OpenStack Study **** class NeutronKeystoneContext(wsgi.Middleware): """Make a request context from keystone headers.""" @webob.dec.wsgify
**** CubicPower OpenStack Study **** def __call__(self, req): # Determine the user ID user_id = req.headers.get('X_USER_ID') if not user_id: LOG.debug(_("X_USER_ID is not found in request")) return webob.exc.HTTPUnauthorized() # Determine the tenant tenant_id = req.headers.get('X_PROJECT_ID') # Suck out the roles roles = [r.strip() for r in req.headers.get('X_ROLES', '').split(',')] # Human-friendly names tenant_name = req.headers.get('X_PROJECT_NAME') user_name = req.headers.get('X_USER_NAME') # Use request_id if already set req_id = req.environ.get(request_id.ENV_REQUEST_ID) # Create a context with the authentication data ctx = context.Context(user_id, tenant_id, roles=roles, user_name=user_name, tenant_name=tenant_name, request_id=req_id) # Inject the context... req.environ['neutron.context'] = ctx return self.application def pipeline_factory(loader, global_conf, **local_conf): """Create a paste pipeline based on the 'auth_strategy' config option.""" pipeline = local_conf[cfg.CONF.auth_strategy] pipeline = pipeline.split() filters = [loader.get_filter(n) for n in pipeline[:-1]] app = loader.get_app(pipeline[-1]) filters.reverse() for filter in filters: app = filter(app) return app
**** CubicPower OpenStack Study **** def pipeline_factory(loader, global_conf, **local_conf): """Create a paste pipeline based on the 'auth_strategy' config option.""" pipeline = local_conf[cfg.CONF.auth_strategy] pipeline = pipeline.split() filters = [loader.get_filter(n) for n in pipeline[:-1]] app = loader.get_app(pipeline[-1]) filters.reverse() for filter in filters: app = filter(app) return app
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