70 lines
2.6 KiB
Python
70 lines
2.6 KiB
Python
# Copyright (c) 2015 Mirantis, 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_serialization import jsonutils
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from pecan import hooks
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import webob.exc
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from neutron._i18n import _
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from neutron.api.v2 import base as v2_base
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from neutron.pecan_wsgi.hooks import utils
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class BodyValidationHook(hooks.PecanHook):
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priority = 120
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def before(self, state):
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if state.request.method not in ('POST', 'PUT'):
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return
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resource = state.request.context.get('resource')
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collection = state.request.context.get('collection')
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neutron_context = state.request.context['neutron_context']
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is_create = state.request.method == 'POST'
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if not resource:
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return
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if not state.request.body:
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return
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try:
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json_data = jsonutils.loads(state.request.body)
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if not isinstance(json_data, dict):
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raise ValueError()
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except ValueError:
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msg = _("Body contains invalid data")
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raise webob.exc.HTTPBadRequest(msg)
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# Raw data are consumed by member actions such as add_router_interface
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state.request.context['request_data'] = json_data
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if not (resource in json_data or collection in json_data):
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# there is no resource in the request. This can happen when a
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# member action is being processed or on agent scheduler operations
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return
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# Prepare data to be passed to the plugin from request body
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controller = utils.get_controller(state)
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data = v2_base.Controller.prepare_request_body(
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neutron_context,
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json_data,
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is_create,
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resource,
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controller.resource_info,
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allow_bulk=is_create)
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if collection in data:
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state.request.context['resources'] = [item[resource] for item in
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data[collection]]
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state.request.context['is_bulk'] = True
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else:
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state.request.context['resources'] = [data[resource]]
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state.request.context['is_bulk'] = False
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