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)