trove/trove/common/rpc/conductor_guest_serializer.py

61 lines
2.0 KiB
Python

# Copyright 2016 Tesora, Inc.
# 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.
from oslo_config import cfg
from oslo_serialization import jsonutils
from trove.common import crypto_utils as crypto
from trove.common.i18n import _
from trove.common.rpc import serializer
CONF = cfg.CONF
# BUG(1650518): Cleanup in the Pike release
class ConductorGuestSerializer(serializer.TroveSerializer):
def __init__(self, base, key):
self._key = key
super(ConductorGuestSerializer, self).__init__(base)
def _serialize_entity(self, ctxt, entity):
if self._key is None:
return entity
value = crypto.encode_data(
crypto.encrypt_data(
jsonutils.dumps(entity), self._key))
return jsonutils.dumps({'entity': value, 'csz-instance-id':
CONF.guest_id})
def _deserialize_entity(self, ctxt, entity):
msg = (_("_deserialize_entity not implemented in "
"ConductorGuestSerializer."))
raise Exception(msg)
def _serialize_context(self, ctxt):
if self._key is None:
return ctxt
cstr = jsonutils.dumps(ctxt)
return {'context':
crypto.encode_data(
crypto.encrypt_data(cstr, self._key)),
'csz-instance-id': CONF.guest_id}
def _deserialize_context(self, ctxt):
msg = (_("_deserialize_context not implemented in "
"ConductorGuestSerializer."))
raise Exception(msg)