138 lines
4.9 KiB
Python
138 lines
4.9 KiB
Python
# Copyright (c) 2013 Rackspace, 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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import falcon
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from wsgiref import simple_server
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from marconi.common import config
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import marconi.openstack.common.log as logging
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from marconi.queues import transport
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from marconi.queues.transport import auth
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from marconi.queues.transport.wsgi import claims
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from marconi.queues.transport.wsgi import health
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from marconi.queues.transport.wsgi import messages
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from marconi.queues.transport.wsgi import metadata
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from marconi.queues.transport.wsgi import queues
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from marconi.queues.transport.wsgi import stats
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from marconi.queues.transport.wsgi import v1
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OPTIONS = {
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'bind': '0.0.0.0',
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'port': 8888
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}
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PROJECT_CFG = config.project('marconi', 'marconi-queues')
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GLOBAL_CFG = PROJECT_CFG.from_options()
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WSGI_CFG = config.namespace('queues:drivers:transport:wsgi').from_options(
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**OPTIONS
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)
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LOG = logging.getLogger(__name__)
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def _check_media_type(req, resp, params):
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if not req.client_accepts('application/json'):
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raise falcon.HTTPNotAcceptable(
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u'''
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Endpoint only serves `application/json`; specify client-side
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media type support with the "Accept" header.''',
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href=u'http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html',
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href_text=u'14.1 Accept, Hypertext Transfer Protocol -- HTTP/1.1')
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def _extract_project_id(req, resp, params):
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params['project_id'] = req.get_header('X-PROJECT-ID')
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if params['project_id'] == "":
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raise falcon.HTTPBadRequest('Empty project header not allowed',
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_(u'''
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X-PROJECT-ID cannot be an empty string. Specify the right header X-PROJECT-ID
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and retry.'''))
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class Driver(transport.DriverBase):
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def __init__(self, storage):
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super(Driver, self).__init__(storage)
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self._init_routes()
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self._init_middleware()
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def _init_routes(self):
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"""Initialize URI routes to resources."""
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self.app = falcon.API(before=[_check_media_type, _extract_project_id])
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queue_controller = self.storage.queue_controller
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message_controller = self.storage.message_controller
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claim_controller = self.storage.claim_controller
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# Home
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self.app.add_route('/v1', v1.V1Resource())
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# Queues Endpoints
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queue_collection = queues.CollectionResource(queue_controller)
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self.app.add_route('/v1/queues', queue_collection)
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queue_item = queues.ItemResource(queue_controller, message_controller)
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self.app.add_route('/v1/queues/{queue_name}', queue_item)
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stats_endpoint = stats.Resource(queue_controller)
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self.app.add_route('/v1/queues/{queue_name}'
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'/stats', stats_endpoint)
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# Metadata Endpoints
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metadata_endpoint = metadata.Resource(queue_controller)
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self.app.add_route('/v1/queues/{queue_name}'
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'/metadata', metadata_endpoint)
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# Messages Endpoints
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msg_collection = messages.CollectionResource(message_controller)
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self.app.add_route('/v1/queues/{queue_name}'
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'/messages', msg_collection)
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msg_item = messages.ItemResource(message_controller)
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self.app.add_route('/v1/queues/{queue_name}'
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'/messages/{message_id}', msg_item)
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# Claims Endpoints
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claim_collection = claims.CollectionResource(claim_controller)
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self.app.add_route('/v1/queues/{queue_name}'
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'/claims', claim_collection)
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claim_item = claims.ItemResource(claim_controller)
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self.app.add_route('/v1/queues/{queue_name}'
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'/claims/{claim_id}', claim_item)
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# Health
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self.app.add_route('/v1/health', health.HealthResource())
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def _init_middleware(self):
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"""Initialize WSGI middlewarez."""
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# NOTE(flaper87): Install Auth
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if GLOBAL_CFG.auth_strategy:
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strategy = auth.strategy(GLOBAL_CFG.auth_strategy)
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self.app = strategy.install(self.app, PROJECT_CFG.conf)
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def listen(self):
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"""Self-host using 'bind' and 'port' from the WSGI config group."""
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msg = _(u'Serving on host %(bind)s:%(port)s')
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msg %= {'bind': WSGI_CFG.bind, 'port': WSGI_CFG.port}
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LOG.info(msg)
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httpd = simple_server.make_server(WSGI_CFG.bind, WSGI_CFG.port,
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self.app)
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httpd.serve_forever()
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