84 lines
2.9 KiB
Python
84 lines
2.9 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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# Copyright (c) 2011 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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"""
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Nova Auth Middleware.
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"""
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import webob.dec
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import webob.exc
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from nova import context
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from nova import flags
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from nova import wsgi
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FLAGS = flags.FLAGS
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flags.DECLARE('use_forwarded_for', 'nova.api.auth')
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class NovaKeystoneContext(wsgi.Middleware):
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"""Make a request context from keystone headers"""
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@webob.dec.wsgify(RequestClass=wsgi.Request)
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def __call__(self, req):
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try:
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user_id = req.headers['X_USER']
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except KeyError:
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return webob.exc.HTTPUnauthorized()
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# get the roles
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roles = [r.strip() for r in req.headers.get('X_ROLE', '').split(',')]
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if 'X_TENANT_ID' in req.headers:
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# This is the new header since Keystone went to ID/Name
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project_id = req.headers['X_TENANT_ID']
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else:
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# This is for legacy compatibility
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project_id = req.headers['X_TENANT']
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# Get the auth token
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auth_token = req.headers.get('X_AUTH_TOKEN',
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req.headers.get('X_STORAGE_TOKEN'))
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# Build a context, including the auth_token...
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remote_address = getattr(req, 'remote_address', '127.0.0.1')
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remote_address = req.remote_addr
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if FLAGS.use_forwarded_for:
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remote_address = req.headers.get('X-Forwarded-For', remote_address)
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ctx = context.RequestContext(user_id,
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project_id,
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roles=roles,
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auth_token=auth_token,
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strategy='keystone',
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remote_address=remote_address)
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req.environ['nova.context'] = ctx
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return self.application
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