112 lines
4.2 KiB
Python
112 lines
4.2 KiB
Python
# Copyright (c) 2015 Taturiello Consulting, Meh.
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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 neutron._i18n import _LE
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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 import manager
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from neutron.pecan_wsgi.controllers import resource
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from neutron.pecan_wsgi.controllers import utils
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LOG = log.getLogger(__name__)
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class RouterController(resource.ItemController):
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"""Customize ResourceController for member actions"""
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### Pecan generic controllers don't work very well with inheritance
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@utils.expose(generic=True)
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def index(self, *args, **kwargs):
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return super(RouterController, self).index(*args, **kwargs)
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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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def not_supported(self):
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return super(RouterController, self).not_supported()
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@utils.when(index, method='PUT')
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def put(self, *args, **kwargs):
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return super(RouterController, self).put(*args, **kwargs)
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@utils.when(index, method='DELETE')
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def delete(self):
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return super(RouterController, self).delete()
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@utils.expose()
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def _lookup(self, member_action, *remainder):
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# This check is mainly for the l3-agents resource. If there isn't
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# a controller for it then we'll just assume its a member action.
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controller = manager.NeutronManager.get_controller_for_resource(
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member_action)
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if not controller:
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controller = RouterMemberActionController(
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self.resource, self.item, member_action)
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return controller, remainder
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class RoutersController(resource.CollectionsController):
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item_controller_class = RouterController
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def __init__(self):
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super(RoutersController, self).__init__('routers', 'router')
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class RouterMemberActionController(resource.ItemController):
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def __init__(self, resource, item, member_action):
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super(RouterMemberActionController, self).__init__(resource, item)
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self.member_action = member_action
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@utils.expose(generic=True)
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def index(self, *args, **kwargs):
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pecan.abort(405)
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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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def not_supported(self):
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return super(RouterMemberActionController, self).not_supported()
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@utils.when(index, method='PUT')
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def put(self, *args, **kwargs):
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neutron_context = request.context['neutron_context']
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LOG.debug("Processing member action %(action)s for resource "
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"%(resource)s identified by %(item)s",
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{'action': self.member_action,
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'resource': self.resource,
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'item': self.item})
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# NOTE(salv-orlando): The following simply verify that the plugin
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# has a method for a given action. It therefore enables plugins to
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# implement actions which are not part of the API specification.
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# Unfortunately the API extension descriptor does not do a good job
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# of sanctioning which actions are available on a given resource.
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# TODO(salv-orlando): prevent plugins from implementing actions
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# which are not part of the Neutron API spec
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try:
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member_action_method = getattr(self.plugin, self.member_action)
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return member_action_method(neutron_context, self.item,
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request.context['request_data'])
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except AttributeError:
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LOG.error(_LE("Action %(action)s is not defined on resource "
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"%(resource)s"),
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{'action': self.member_action,
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'resource': self.resource})
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pecan.abort(404)
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