# Copyright 2017 AT&T Intellectual Property. All other rights reserved.
#
# 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.
import falcon
from oslo_log import log as logging
from oslo_utils import excutils
from deckhand.control import base as api_base
from deckhand.control.views import revision as revision_view
from deckhand.db.sqlalchemy import api as db_api
from deckhand import errors
from deckhand import policy
LOG = logging.getLogger(__name__)
[docs]class RollbackResource(api_base.BaseResource):
"""API resource for realizing revision rollback."""
view_builder = revision_view.ViewBuilder()
[docs] @policy.authorize('deckhand:create_cleartext_documents')
def on_post(self, req, resp, revision_id):
try:
latest_revision = db_api.revision_get_latest()
except errors.RevisionNotFound as e:
with excutils.save_and_reraise_exception():
LOG.exception(e.format_message())
for document in latest_revision['documents']:
if document['metadata'].get('storagePolicy') == 'encrypted':
policy.conditional_authorize(
'deckhand:create_encrypted_documents', req.context)
break
try:
rollback_revision = db_api.revision_rollback(
revision_id, latest_revision)
except errors.RevisionNotFound as e:
with excutils.save_and_reraise_exception():
LOG.exception(e.format_message())
revision_resp = self.view_builder.show(rollback_revision)
resp.status = falcon.HTTP_201
resp.body = revision_resp