Source code for glance.api.v2.image_tags
# Copyright 2012 OpenStack Foundation
# All 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 http.client as http
import glance_store
from oslo_log import log as logging
from oslo_utils import encodeutils
import webob.exc
from glance.api import policy
from glance.api.v2 import images as v2_api
from glance.api.v2 import policy as api_policy
from glance.common import exception
from glance.common import utils
from glance.common import wsgi
import glance.db
import glance.gateway
from glance.i18n import _
import glance.notifier
LOG = logging.getLogger(__name__)
[docs]
class Controller(object):
def __init__(self, db_api=None, policy_enforcer=None, notifier=None,
store_api=None):
self.db_api = db_api or glance.db.get_api()
self.policy = policy_enforcer or policy.Enforcer()
self.notifier = notifier or glance.notifier.Notifier()
self.store_api = store_api or glance_store
self.gateway = glance.gateway.Gateway(self.db_api, self.store_api,
self.notifier, self.policy)
[docs]
@utils.mutating
def update(self, req, image_id, tag_value):
image_repo = self.gateway.get_repo(req.context)
try:
image = image_repo.get(image_id)
api_policy.ImageAPIPolicy(req.context, image,
self.policy).modify_image()
image.tags.add(tag_value)
image_repo.save(image)
except exception.NotFound:
msg = _("Image %s not found.") % image_id
LOG.warning(msg)
raise webob.exc.HTTPNotFound(explanation=msg)
except exception.Forbidden:
msg = _("Not allowed to update tags for image %s.") % image_id
LOG.warning(msg)
raise webob.exc.HTTPForbidden(explanation=msg)
except exception.Invalid as e:
msg = (_("Could not update image: %s")
% encodeutils.exception_to_unicode(e))
LOG.warning(msg)
raise webob.exc.HTTPBadRequest(explanation=msg)
except exception.ImageTagLimitExceeded as e:
msg = (_("Image tag limit exceeded for image %(id)s: %(e)s:")
% {"id": image_id,
"e": encodeutils.exception_to_unicode(e)})
LOG.warning(msg)
raise webob.exc.HTTPRequestEntityTooLarge(explanation=msg)
[docs]
@utils.mutating
def delete(self, req, image_id, tag_value):
image_repo = self.gateway.get_repo(req.context)
try:
image = image_repo.get(image_id)
api_policy.ImageAPIPolicy(req.context, image,
self.policy).modify_image()
if tag_value not in image.tags:
raise webob.exc.HTTPNotFound()
image.tags.remove(tag_value)
image_repo.save(image)
except exception.NotFound:
msg = _("Image %s not found.") % image_id
LOG.warning(msg)
raise webob.exc.HTTPNotFound(explanation=msg)
except exception.Forbidden:
msg = _("Not allowed to delete tags for image %s.") % image_id
LOG.warning(msg)
raise webob.exc.HTTPForbidden(explanation=msg)
[docs]
class ResponseSerializer(wsgi.JSONResponseSerializer):
[docs]
def update(self, response, result):
response.status_int = http.NO_CONTENT
[docs]
def delete(self, response, result):
response.status_int = http.NO_CONTENT
[docs]
class RequestDeserializer(wsgi.JSONRequestDeserializer):
[docs]
def update(self, request):
try:
schema = v2_api.get_schema()
schema_format = {"tags": [request.urlvars.get('tag_value')]}
schema.validate(schema_format)
except exception.InvalidObject as e:
raise webob.exc.HTTPBadRequest(explanation=e.msg)
return super(RequestDeserializer, self).default(request)
[docs]
def create_resource():
"""Images resource factory method"""
serializer = ResponseSerializer()
deserializer = RequestDeserializer()
controller = Controller()
return wsgi.Resource(controller, deserializer, serializer)