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# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# This file handles all flask-restful resources for /v3/limits
import flask
import flask_restful
from six.moves import http_client
from keystone.common import json_home
from keystone.common import provider_api
from keystone.common import rbac_enforcer
from keystone.common import validation
from keystone import exception
from keystone.limit import schema
from keystone.server import flask as ks_flask
PROVIDERS = provider_api.ProviderAPIs
ENFORCER = rbac_enforcer.RBACEnforcer
def _build_limit_enforcement_target():
target = {}
try:
limit = PROVIDERS.unified_limit_api.get_limit(
flask.request.view_args.get('limit_id')
)
target['limit'] = limit
if limit.get('project_id'):
project = PROVIDERS.resource_api.get_project(limit['project_id'])
target['limit']['project'] = project
elif limit.get('domain_id'):
domain = PROVIDERS.resource_api.get_domain(limit['domain_id'])
target['limit']['domain'] = domain
except exception.NotFound: # nosec
# Defer the existence check in the event the limit doesn't exist, this
# is checked later anyway.
pass
return target
class LimitsResource(ks_flask.ResourceBase):
collection_key = 'limits'
member_key = 'limit'
json_home_resource_status = json_home.Status.EXPERIMENTAL
get_member_from_driver = PROVIDERS.deferred_provider_lookup(
api='unified_limit_api', method='get_limit')
def _list_limits(self):
filters = ['service_id', 'region_id', 'resource_name', 'project_id',
'domain_id']
ENFORCER.enforce_call(action='identity:list_limits', filters=filters)
hints = self.build_driver_hints(filters)
filtered_refs = []
if self.oslo_context.system_scope:
refs = PROVIDERS.unified_limit_api.list_limits(hints)
filtered_refs = refs
elif self.oslo_context.domain_id:
refs = PROVIDERS.unified_limit_api.list_limits(hints)
projects = PROVIDERS.resource_api.list_projects_in_domain(
self.oslo_context.domain_id
)
project_ids = [project['id'] for project in projects]
for limit in refs:
if limit.get('project_id'):
if limit['project_id'] in project_ids:
filtered_refs.append(limit)
elif limit.get('domain_id'):
if limit['domain_id'] == self.oslo_context.domain_id:
filtered_refs.append(limit)
elif self.oslo_context.project_id:
hints.add_filter('project_id', self.oslo_context.project_id)
refs = PROVIDERS.unified_limit_api.list_limits(hints)
filtered_refs = refs
return self.wrap_collection(filtered_refs, hints=hints)
def _get_limit(self, limit_id):
ENFORCER.enforce_call(action='identity:get_limit',
build_target=_build_limit_enforcement_target)
ref = PROVIDERS.unified_limit_api.get_limit(limit_id)
return self.wrap_member(ref)
def get(self, limit_id=None):
if limit_id is not None:
return self._get_limit(limit_id)
return self._list_limits()
def post(self):
ENFORCER.enforce_call(action='identity:create_limits')
limits_b = (flask.request.get_json(silent=True, force=True) or {}).get(
'limits', {})
validation.lazy_validate(schema.limit_create, limits_b)
limits = [self._assign_unique_id(self._normalize_dict(limit))
for limit in limits_b]
refs = PROVIDERS.unified_limit_api.create_limits(limits)
refs = self.wrap_collection(refs)
refs.pop('links')
return refs, http_client.CREATED
def patch(self, limit_id):
ENFORCER.enforce_call(action='identity:update_limit')
limit = (flask.request.get_json(silent=True, force=True) or {}).get(
'limit', {})
validation.lazy_validate(schema.limit_update, limit)
self._require_matching_id(limit)
ref = PROVIDERS.unified_limit_api.update_limit(limit_id, limit)
return self.wrap_member(ref)
def delete(self, limit_id):
ENFORCER.enforce_call(action='identity:delete_limit')
return (PROVIDERS.unified_limit_api.delete_limit(limit_id),
http_client.NO_CONTENT)
class LimitModelResource(flask_restful.Resource):
def get(self):
ENFORCER.enforce_call(action='identity:get_limit_model')
model = PROVIDERS.unified_limit_api.get_model()
return {'model': model}
class LimitsAPI(ks_flask.APIBase):
_name = 'limits'
_import_name = __name__
resources = [LimitsResource]
resource_mapping = [
ks_flask.construct_resource_map(
resource=LimitModelResource,
resource_kwargs={},
url='/limits/model',
rel='limit_model',
status=json_home.Status.EXPERIMENTAL
)
]
APIs = (LimitsAPI,)
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