64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 OpenStack LLC
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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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import webob.dec
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import webob.exc
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from quantum import context
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from quantum.openstack.common import cfg
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from quantum.openstack.common import log as logging
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from quantum import wsgi
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LOG = logging.getLogger(__name__)
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class QuantumKeystoneContext(wsgi.Middleware):
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"""Make a request context from keystone headers."""
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@webob.dec.wsgify
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def __call__(self, req):
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# Determine the user ID
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user_id = req.headers.get('X_USER_ID', req.headers.get('X_USER'))
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if not user_id:
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LOG.debug(_("Neither X_USER_ID nor X_USER found in request"))
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return webob.exc.HTTPUnauthorized()
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# Determine the tenant
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tenant_id = req.headers.get('X_TENANT_ID', req.headers.get('X_TENANT'))
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# Suck out the roles
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roles = [r.strip() for r in req.headers.get('X_ROLE', '').split(',')]
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# Create a context with the authentication data
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ctx = context.Context(user_id, tenant_id, roles=roles)
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# Inject the context...
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req.environ['quantum.context'] = ctx
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return self.application
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def pipeline_factory(loader, global_conf, **local_conf):
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"""Create a paste pipeline based on the 'auth_strategy' config option."""
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pipeline = local_conf[cfg.CONF.auth_strategy]
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pipeline = pipeline.split()
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filters = [loader.get_filter(n) for n in pipeline[:-1]]
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app = loader.get_app(pipeline[-1])
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filters.reverse()
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for filter in filters:
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app = filter(app)
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return app
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