68 lines
2.3 KiB
Python
68 lines
2.3 KiB
Python
# Copyright 2011 OpenStack Foundation
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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 nova.api.openstack.compute.legacy_v2 import limits
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from nova.api.openstack.compute.views import limits as limits_views
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from nova.api.openstack import extensions
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from nova.api.openstack import wsgi
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from nova import quota
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# NOTE(alex_xu): This is just for keeping backward compatible with v2 endpoint
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# in api-paste.ini. This will be removed after v2 API code deprecated in the
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# future.
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RateLimitingMiddleware = limits.RateLimitingMiddleware
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QUOTAS = quota.QUOTAS
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ALIAS = 'limits'
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authorize = extensions.os_compute_authorizer(ALIAS)
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class LimitsController(wsgi.Controller):
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"""Controller for accessing limits in the OpenStack API."""
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@extensions.expected_errors(())
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def index(self, req):
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"""Return all global and rate limit information."""
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context = req.environ['nova.context']
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authorize(context)
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project_id = req.params.get('tenant_id', context.project_id)
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quotas = QUOTAS.get_project_quotas(context, project_id,
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usages=False)
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abs_limits = {k: v['limit'] for k, v in quotas.items()}
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rate_limits = req.environ.get("nova.limits", [])
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builder = self._get_view_builder(req)
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return builder.build(rate_limits, abs_limits)
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def _get_view_builder(self, req):
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return limits_views.ViewBuilderV3()
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class Limits(extensions.V21APIExtensionBase):
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"""Limits support."""
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name = "Limits"
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alias = ALIAS
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version = 1
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def get_resources(self):
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resource = [extensions.ResourceExtension(ALIAS,
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LimitsController())]
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return resource
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def get_controller_extensions(self):
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return []
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