120 lines
4.3 KiB
Python
120 lines
4.3 KiB
Python
# Copyright (c) 2015 Mirantis, Inc.
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# Copyright (c) 2015 Rackspace, Inc.
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# All Rights Reserved.
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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 oslo_log import log
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import pecan
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from pecan import request
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from neutron._i18n import _LW
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from neutron.api.views import versions as versions_view
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from neutron import manager
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from neutron.pecan_wsgi.controllers import extensions as ext_ctrl
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from neutron.pecan_wsgi.controllers import utils
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LOG = log.getLogger(__name__)
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_VERSION_INFO = {}
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def _load_version_info(version_info):
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assert version_info['id'] not in _VERSION_INFO
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_VERSION_INFO[version_info['id']] = version_info
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def _get_version_info():
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return _VERSION_INFO.values()
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class RootController(object):
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@utils.expose(generic=True)
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def index(self):
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# NOTE(kevinbenton): The pecan framework does not handle
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# any requests to the root because they are intercepted
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# by the 'version' returning wrapper.
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pass
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@utils.when(index, method='GET')
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@utils.when(index, method='HEAD')
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@utils.when(index, method='POST')
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@utils.when(index, method='PATCH')
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@utils.when(index, method='PUT')
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@utils.when(index, method='DELETE')
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def not_supported(self):
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pecan.abort(405)
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class V2Controller(object):
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# Same data structure as neutron.api.versions.Versions for API backward
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# compatibility
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version_info = {
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'id': 'v2.0',
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'status': 'CURRENT'
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}
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_load_version_info(version_info)
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extensions = ext_ctrl.ExtensionsController()
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@utils.expose(generic=True)
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def index(self):
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builder = versions_view.get_view_builder(pecan.request)
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return dict(version=builder.build(self.version_info))
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@utils.when(index, method='HEAD')
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@utils.when(index, method='POST')
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@utils.when(index, method='PATCH')
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@utils.when(index, method='PUT')
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@utils.when(index, method='DELETE')
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def not_supported(self):
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pecan.abort(405)
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@utils.expose()
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def _lookup(self, collection, *remainder):
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# if collection exists in the extension to service plugins map then
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# we are assuming that collection is the service plugin and
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# needs to be remapped.
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# Example: https://neutron.endpoint/v2.0/lbaas/loadbalancers
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if (remainder and
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manager.NeutronManager.get_resources_for_path_prefix(
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collection)):
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collection = remainder[0]
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remainder = remainder[1:]
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controller = manager.NeutronManager.get_controller_for_resource(
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collection)
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if not controller:
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LOG.warning(_LW("No controller found for: %s - returning response "
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"code 404"), collection)
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pecan.abort(404)
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# Store resource and collection names in pecan request context so that
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# hooks can leverage them if necessary. The following code uses
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# attributes from the controller instance to ensure names have been
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# properly sanitized (eg: replacing dashes with underscores)
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request.context['resource'] = controller.resource
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request.context['collection'] = controller.collection
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# NOTE(blogan): initialize a dict to store the ids of the items walked
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# in the path for example: /networks/1234 would cause uri_identifiers
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# to contain: {'network_id': '1234'}
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# This is for backwards compatibility with legacy extensions that
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# defined their own controllers and expected kwargs to be passed in
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# with the uri_identifiers
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request.context['uri_identifiers'] = {}
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return controller, remainder
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# This controller cannot be specified directly as a member of RootController
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# as its path is not a valid python identifier
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pecan.route(RootController, 'v2.0', V2Controller())
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