902 lines
35 KiB
Python
902 lines
35 KiB
Python
# Copyright 2012 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import re
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import glance_store
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from oslo.config import cfg
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from oslo.serialization import jsonutils as json
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from oslo.utils import timeutils
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import six
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import six.moves.urllib.parse as urlparse
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import webob.exc
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from glance.api import policy
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from glance.common import exception
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from glance.common import location_strategy
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from glance.common import utils
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from glance.common import wsgi
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import glance.db
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import glance.gateway
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from glance import i18n
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import glance.notifier
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import glance.openstack.common.log as logging
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import glance.schema
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LOG = logging.getLogger(__name__)
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_ = i18n._
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_LW = i18n._LW
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CONF = cfg.CONF
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CONF.import_opt('disk_formats', 'glance.common.config', group='image_format')
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CONF.import_opt('container_formats', 'glance.common.config',
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group='image_format')
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class ImagesController(object):
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def __init__(self, db_api=None, policy_enforcer=None, notifier=None,
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store_api=None):
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self.db_api = db_api or glance.db.get_api()
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self.policy = policy_enforcer or policy.Enforcer()
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self.notifier = notifier or glance.notifier.Notifier()
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self.store_api = store_api or glance_store
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self.gateway = glance.gateway.Gateway(self.db_api, self.store_api,
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self.notifier, self.policy)
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@utils.mutating
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def create(self, req, image, extra_properties, tags):
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image_factory = self.gateway.get_image_factory(req.context)
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image_repo = self.gateway.get_repo(req.context)
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try:
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image = image_factory.new_image(extra_properties=extra_properties,
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tags=tags, **image)
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image_repo.add(image)
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except exception.DuplicateLocation as dup:
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raise webob.exc.HTTPBadRequest(explanation=dup.msg)
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except exception.Invalid as e:
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raise webob.exc.HTTPBadRequest(explanation=e.msg)
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except exception.Forbidden as e:
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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except exception.InvalidParameterValue as e:
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raise webob.exc.HTTPBadRequest(explanation=e.msg)
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except exception.LimitExceeded as e:
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LOG.warn(utils.exception_to_str(e))
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raise webob.exc.HTTPRequestEntityTooLarge(
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explanation=e.msg, request=req, content_type='text/plain')
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except exception.Duplicate as dupex:
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raise webob.exc.HTTPConflict(explanation=dupex.msg)
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except exception.ReservedProperty as e:
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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except exception.ReadonlyProperty as e:
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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except TypeError as e:
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LOG.debug(utils.exception_to_str(e))
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raise webob.exc.HTTPBadRequest(
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explanation=utils.exception_to_str(e))
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return image
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def index(self, req, marker=None, limit=None, sort_key=['created_at'],
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sort_dir='desc', filters=None, member_status='accepted'):
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result = {}
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if filters is None:
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filters = {}
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filters['deleted'] = False
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if limit is None:
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limit = CONF.limit_param_default
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limit = min(CONF.api_limit_max, limit)
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image_repo = self.gateway.get_repo(req.context)
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try:
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images = image_repo.list(marker=marker, limit=limit,
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sort_key=sort_key,
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sort_dir=sort_dir,
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filters=filters,
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member_status=member_status)
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if len(images) != 0 and len(images) == limit:
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result['next_marker'] = images[-1].image_id
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except (exception.NotFound, exception.InvalidSortKey,
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exception.InvalidFilterRangeValue) as e:
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raise webob.exc.HTTPBadRequest(explanation=e.msg)
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except exception.Forbidden as e:
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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result['images'] = images
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return result
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def show(self, req, image_id):
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image_repo = self.gateway.get_repo(req.context)
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try:
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return image_repo.get(image_id)
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except exception.Forbidden as e:
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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except exception.NotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.msg)
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@utils.mutating
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def update(self, req, image_id, changes):
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image_repo = self.gateway.get_repo(req.context)
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try:
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image = image_repo.get(image_id)
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for change in changes:
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change_method_name = '_do_%s' % change['op']
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assert hasattr(self, change_method_name)
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change_method = getattr(self, change_method_name)
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change_method(req, image, change)
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if changes:
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image_repo.save(image)
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except exception.NotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.msg)
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except exception.Invalid as e:
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raise webob.exc.HTTPBadRequest(explanation=e.msg)
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except exception.Forbidden as e:
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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except exception.InvalidParameterValue as e:
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raise webob.exc.HTTPBadRequest(explanation=e.msg)
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except exception.StorageQuotaFull as e:
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msg = (_("Denying attempt to upload image because it exceeds the"
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" .quota: %s") % utils.exception_to_str(e))
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LOG.warn(msg)
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raise webob.exc.HTTPRequestEntityTooLarge(
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explanation=msg, request=req, content_type='text/plain')
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except exception.LimitExceeded as e:
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LOG.exception(utils.exception_to_str(e))
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raise webob.exc.HTTPRequestEntityTooLarge(
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explanation=e.msg, request=req, content_type='text/plain')
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return image
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def _do_replace(self, req, image, change):
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path = change['path']
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path_root = path[0]
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value = change['value']
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if path_root == 'locations':
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self._do_replace_locations(image, value)
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else:
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if hasattr(image, path_root):
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setattr(image, path_root, value)
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elif path_root in image.extra_properties:
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image.extra_properties[path_root] = value
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else:
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msg = _("Property %s does not exist.")
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raise webob.exc.HTTPConflict(msg % path_root)
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def _do_add(self, req, image, change):
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path = change['path']
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path_root = path[0]
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value = change['value']
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json_schema_version = change.get('json_schema_version', 10)
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if path_root == 'locations':
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self._do_add_locations(image, path[1], value)
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else:
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if ((hasattr(image, path_root) or
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path_root in image.extra_properties)
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and json_schema_version == 4):
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msg = _("Property %s already present.")
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raise webob.exc.HTTPConflict(msg % path_root)
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if hasattr(image, path_root):
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setattr(image, path_root, value)
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else:
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image.extra_properties[path_root] = value
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def _do_remove(self, req, image, change):
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path = change['path']
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path_root = path[0]
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if path_root == 'locations':
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self._do_remove_locations(image, path[1])
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else:
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if hasattr(image, path_root):
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msg = _("Property %s may not be removed.")
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raise webob.exc.HTTPForbidden(msg % path_root)
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elif path_root in image.extra_properties:
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del image.extra_properties[path_root]
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else:
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msg = _("Property %s does not exist.")
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raise webob.exc.HTTPConflict(msg % path_root)
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@utils.mutating
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def delete(self, req, image_id):
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image_repo = self.gateway.get_repo(req.context)
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try:
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image = image_repo.get(image_id)
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image.delete()
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image_repo.remove(image)
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except exception.Forbidden as e:
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raise webob.exc.HTTPForbidden(explanation=e.msg)
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except exception.NotFound as e:
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msg = (_("Failed to find image %(image_id)s to delete") %
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{'image_id': image_id})
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LOG.warn(msg)
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raise webob.exc.HTTPNotFound(explanation=msg)
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except exception.InUseByStore as e:
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msg = (_("Image %(id)s could not be deleted "
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"because it is in use: %(exc)s") %
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{"id": image_id,
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"exc": e.msg})
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LOG.warn(msg)
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raise webob.exc.HTTPConflict(explanation=msg)
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def _get_locations_op_pos(self, path_pos, max_pos, allow_max):
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if path_pos is None or max_pos is None:
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return None
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pos = max_pos if allow_max else max_pos - 1
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if path_pos.isdigit():
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pos = int(path_pos)
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elif path_pos != '-':
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return None
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if (not allow_max) and (pos not in range(max_pos)):
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return None
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return pos
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def _do_replace_locations(self, image, value):
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if len(image.locations) > 0 and len(value) > 0:
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msg = _("Cannot replace locations from a non-empty "
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"list to a non-empty list.")
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if len(value) == 0:
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# NOTE(zhiyan): this actually deletes the location
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# from the backend store.
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del image.locations[:]
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if image.status == 'active':
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image.status = 'queued'
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else: # NOTE(zhiyan): len(image.locations) == 0
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try:
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image.locations = value
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if image.status == 'queued':
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image.status = 'active'
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except (exception.BadStoreUri, exception.DuplicateLocation) as bse:
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raise webob.exc.HTTPBadRequest(explanation=bse.msg)
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except ValueError as ve: # update image status failed.
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raise webob.exc.HTTPBadRequest(
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explanation=utils.exception_to_str(ve))
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def _do_add_locations(self, image, path_pos, value):
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pos = self._get_locations_op_pos(path_pos,
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len(image.locations), True)
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if pos is None:
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msg = _("Invalid position for adding a location.")
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raise webob.exc.HTTPBadRequest(explanation=msg)
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try:
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image.locations.insert(pos, value)
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if image.status == 'queued':
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image.status = 'active'
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except (exception.BadStoreUri, exception.DuplicateLocation) as bse:
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raise webob.exc.HTTPBadRequest(explanation=bse.msg)
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except ValueError as ve: # update image status failed.
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raise webob.exc.HTTPBadRequest(
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explanation=utils.exception_to_str(ve))
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def _do_remove_locations(self, image, path_pos):
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pos = self._get_locations_op_pos(path_pos,
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len(image.locations), False)
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if pos is None:
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msg = _("Invalid position for removing a location.")
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raise webob.exc.HTTPBadRequest(explanation=msg)
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try:
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# NOTE(zhiyan): this actually deletes the location
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# from the backend store.
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image.locations.pop(pos)
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except Exception as e:
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raise webob.exc.HTTPInternalServerError(
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explanation=utils.exception_to_str(e))
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if (len(image.locations) == 0) and (image.status == 'active'):
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image.status = 'queued'
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class RequestDeserializer(wsgi.JSONRequestDeserializer):
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_disallowed_properties = ('direct_url', 'self', 'file', 'schema')
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_readonly_properties = ('created_at', 'updated_at', 'status', 'checksum',
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'size', 'virtual_size', 'direct_url', 'self',
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'file', 'schema')
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_reserved_properties = ('owner', 'is_public', 'location', 'deleted',
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'deleted_at')
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_base_properties = ('checksum', 'created_at', 'container_format',
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'disk_format', 'id', 'min_disk', 'min_ram', 'name',
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'size', 'virtual_size', 'status', 'tags',
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'updated_at', 'visibility', 'protected')
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_available_sort_keys = ('name', 'status', 'container_format',
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'disk_format', 'size', 'id', 'created_at',
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'updated_at')
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_path_depth_limits = {'locations': {'add': 2, 'remove': 2, 'replace': 1}}
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def __init__(self, schema=None):
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super(RequestDeserializer, self).__init__()
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self.schema = schema or get_schema()
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def _get_request_body(self, request):
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output = super(RequestDeserializer, self).default(request)
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if 'body' not in output:
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msg = _('Body expected in request.')
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raise webob.exc.HTTPBadRequest(explanation=msg)
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return output['body']
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@classmethod
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def _check_allowed(cls, image):
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for key in cls._disallowed_properties:
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if key in image:
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msg = _("Attribute '%s' is read-only.") % key
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raise webob.exc.HTTPForbidden(
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explanation=utils.exception_to_str(msg))
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def create(self, request):
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body = self._get_request_body(request)
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self._check_allowed(body)
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try:
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self.schema.validate(body)
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except exception.InvalidObject as e:
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raise webob.exc.HTTPBadRequest(explanation=e.msg)
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image = {}
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properties = body
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tags = properties.pop('tags', [])
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for key in self._base_properties:
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try:
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# NOTE(flwang): Instead of changing the _check_unexpected
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# of ImageFactory. It would be better to do the mapping
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# at here.
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if key == 'id':
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image['image_id'] = properties.pop(key)
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else:
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image[key] = properties.pop(key)
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except KeyError:
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pass
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return dict(image=image, extra_properties=properties, tags=tags)
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def _get_change_operation_d10(self, raw_change):
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try:
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return raw_change['op']
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except KeyError:
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msg = _("Unable to find '%s' in JSON Schema change") % 'op'
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raise webob.exc.HTTPBadRequest(explanation=msg)
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def _get_change_operation_d4(self, raw_change):
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op = None
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for key in ['replace', 'add', 'remove']:
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if key in raw_change:
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if op is not None:
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msg = _('Operation objects must contain only one member'
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' named "add", "remove", or "replace".')
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raise webob.exc.HTTPBadRequest(explanation=msg)
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op = key
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if op is None:
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msg = _('Operation objects must contain exactly one member'
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' named "add", "remove", or "replace".')
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raise webob.exc.HTTPBadRequest(explanation=msg)
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return op
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def _get_change_path_d10(self, raw_change):
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try:
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return raw_change['path']
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except KeyError:
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msg = _("Unable to find '%s' in JSON Schema change") % 'path'
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raise webob.exc.HTTPBadRequest(explanation=msg)
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def _get_change_path_d4(self, raw_change, op):
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return raw_change[op]
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def _decode_json_pointer(self, pointer):
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"""Parse a json pointer.
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Json Pointers are defined in
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http://tools.ietf.org/html/draft-pbryan-zyp-json-pointer .
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The pointers use '/' for separation between object attributes, such
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that '/A/B' would evaluate to C in {"A": {"B": "C"}}. A '/' character
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in an attribute name is encoded as "~1" and a '~' character is encoded
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as "~0".
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"""
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self._validate_json_pointer(pointer)
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ret = []
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for part in pointer.lstrip('/').split('/'):
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ret.append(part.replace('~1', '/').replace('~0', '~').strip())
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return ret
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def _validate_json_pointer(self, pointer):
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"""Validate a json pointer.
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We only accept a limited form of json pointers.
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"""
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if not pointer.startswith('/'):
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msg = _('Pointer `%s` does not start with "/".') % pointer
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if re.search('/\s*?/', pointer[1:]):
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msg = _('Pointer `%s` contains adjacent "/".') % pointer
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if len(pointer) > 1 and pointer.endswith('/'):
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msg = _('Pointer `%s` end with "/".') % pointer
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if pointer[1:].strip() == '/':
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msg = _('Pointer `%s` does not contains valid token.') % pointer
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if re.search('~[^01]', pointer) or pointer.endswith('~'):
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msg = _('Pointer `%s` contains "~" not part of'
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' a recognized escape sequence.') % pointer
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raise webob.exc.HTTPBadRequest(explanation=msg)
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def _get_change_value(self, raw_change, op):
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if 'value' not in raw_change:
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msg = _('Operation "%s" requires a member named "value".')
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raise webob.exc.HTTPBadRequest(explanation=msg % op)
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return raw_change['value']
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def _validate_change(self, change):
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path_root = change['path'][0]
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if path_root in self._readonly_properties:
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msg = _("Attribute '%s' is read-only.") % path_root
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raise webob.exc.HTTPForbidden(explanation=six.text_type(msg))
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if path_root in self._reserved_properties:
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msg = _("Attribute '%s' is reserved.") % path_root
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raise webob.exc.HTTPForbidden(explanation=six.text_type(msg))
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if change['op'] == 'delete':
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return
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partial_image = None
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if len(change['path']) == 1:
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partial_image = {path_root: change['value']}
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elif ((path_root in get_base_properties().keys()) and
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(get_base_properties()[path_root].get('type', '') == 'array')):
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# NOTE(zhiyan): cient can use PATCH API to adding element to
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# the image's existing set property directly.
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# Such as: 1. using '/locations/N' path to adding a location
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# to the image's 'locations' list at N position.
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# (implemented)
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# 2. using '/tags/-' path to appending a tag to the
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# image's 'tags' list at last. (Not implemented)
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partial_image = {path_root: [change['value']]}
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if partial_image:
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try:
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self.schema.validate(partial_image)
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except exception.InvalidObject as e:
|
|
raise webob.exc.HTTPBadRequest(explanation=e.msg)
|
|
|
|
def _validate_path(self, op, path):
|
|
path_root = path[0]
|
|
limits = self._path_depth_limits.get(path_root, {})
|
|
if len(path) != limits.get(op, 1):
|
|
msg = _("Invalid JSON pointer for this resource: "
|
|
"'/%s'") % '/'.join(path)
|
|
raise webob.exc.HTTPBadRequest(explanation=six.text_type(msg))
|
|
|
|
def _parse_json_schema_change(self, raw_change, draft_version):
|
|
if draft_version == 10:
|
|
op = self._get_change_operation_d10(raw_change)
|
|
path = self._get_change_path_d10(raw_change)
|
|
elif draft_version == 4:
|
|
op = self._get_change_operation_d4(raw_change)
|
|
path = self._get_change_path_d4(raw_change, op)
|
|
else:
|
|
msg = _('Unrecognized JSON Schema draft version')
|
|
raise webob.exc.HTTPBadRequest(explanation=msg)
|
|
|
|
path_list = self._decode_json_pointer(path)
|
|
return op, path_list
|
|
|
|
def update(self, request):
|
|
changes = []
|
|
content_types = {
|
|
'application/openstack-images-v2.0-json-patch': 4,
|
|
'application/openstack-images-v2.1-json-patch': 10,
|
|
}
|
|
if request.content_type not in content_types:
|
|
headers = {'Accept-Patch':
|
|
', '.join(sorted(content_types.keys()))}
|
|
raise webob.exc.HTTPUnsupportedMediaType(headers=headers)
|
|
|
|
json_schema_version = content_types[request.content_type]
|
|
|
|
body = self._get_request_body(request)
|
|
|
|
if not isinstance(body, list):
|
|
msg = _('Request body must be a JSON array of operation objects.')
|
|
raise webob.exc.HTTPBadRequest(explanation=msg)
|
|
|
|
for raw_change in body:
|
|
if not isinstance(raw_change, dict):
|
|
msg = _('Operations must be JSON objects.')
|
|
raise webob.exc.HTTPBadRequest(explanation=msg)
|
|
|
|
(op, path) = self._parse_json_schema_change(raw_change,
|
|
json_schema_version)
|
|
|
|
# NOTE(zhiyan): the 'path' is a list.
|
|
self._validate_path(op, path)
|
|
change = {'op': op, 'path': path,
|
|
'json_schema_version': json_schema_version}
|
|
|
|
if not op == 'remove':
|
|
change['value'] = self._get_change_value(raw_change, op)
|
|
self._validate_change(change)
|
|
|
|
changes.append(change)
|
|
|
|
return {'changes': changes}
|
|
|
|
def _validate_limit(self, limit):
|
|
try:
|
|
limit = int(limit)
|
|
except ValueError:
|
|
msg = _("limit param must be an integer")
|
|
raise webob.exc.HTTPBadRequest(explanation=msg)
|
|
|
|
if limit < 0:
|
|
msg = _("limit param must be positive")
|
|
raise webob.exc.HTTPBadRequest(explanation=msg)
|
|
|
|
return limit
|
|
|
|
def _validate_sort_key(self, sort_key):
|
|
if sort_key not in self._available_sort_keys:
|
|
msg = _('Invalid sort key: %(sort_key)s. '
|
|
'It must be one of the following: %(available)s.') % \
|
|
{'sort_key': sort_key,
|
|
'available': ', '.join(self._available_sort_keys)}
|
|
raise webob.exc.HTTPBadRequest(explanation=msg)
|
|
|
|
return sort_key
|
|
|
|
def _validate_sort_dir(self, sort_dir):
|
|
if sort_dir not in ['asc', 'desc']:
|
|
msg = _('Invalid sort direction: %s') % sort_dir
|
|
raise webob.exc.HTTPBadRequest(explanation=msg)
|
|
|
|
return sort_dir
|
|
|
|
def _validate_member_status(self, member_status):
|
|
if member_status not in ['pending', 'accepted', 'rejected', 'all']:
|
|
msg = _('Invalid status: %s') % member_status
|
|
raise webob.exc.HTTPBadRequest(explanation=msg)
|
|
|
|
return member_status
|
|
|
|
def _get_filters(self, filters):
|
|
visibility = filters.get('visibility')
|
|
if visibility:
|
|
if visibility not in ['public', 'private', 'shared']:
|
|
msg = _('Invalid visibility value: %s') % visibility
|
|
raise webob.exc.HTTPBadRequest(explanation=msg)
|
|
changes_since = filters.get('changes-since', None)
|
|
if changes_since:
|
|
msg = _('The "changes-since" filter is no longer available on v2.')
|
|
raise webob.exc.HTTPBadRequest(explanation=msg)
|
|
|
|
return filters
|
|
|
|
def index(self, request):
|
|
params = request.params.copy()
|
|
limit = params.pop('limit', None)
|
|
marker = params.pop('marker', None)
|
|
sort_dir = params.pop('sort_dir', 'desc')
|
|
member_status = params.pop('member_status', 'accepted')
|
|
|
|
# NOTE (flwang) To avoid using comma or any predefined chars to split
|
|
# multiple tags, now we allow user specify multiple 'tag' parameters
|
|
# in URL, such as v2/images?tag=x86&tag=64bit.
|
|
tags = []
|
|
while 'tag' in params:
|
|
tags.append(params.pop('tag').strip())
|
|
|
|
# NOTE (mfedosin) Do the same with sorting keys
|
|
# v2/images?sort_key=name&sort_key=size
|
|
|
|
sort_keys = []
|
|
while 'sort_key' in params:
|
|
sort_keys.append(self._validate_sort_key(
|
|
params.pop('sort_key').strip()))
|
|
|
|
query_params = {
|
|
'sort_dir': self._validate_sort_dir(sort_dir),
|
|
'filters': self._get_filters(params),
|
|
'member_status': self._validate_member_status(member_status),
|
|
}
|
|
|
|
if marker is not None:
|
|
query_params['marker'] = marker
|
|
|
|
if limit is not None:
|
|
query_params['limit'] = self._validate_limit(limit)
|
|
|
|
if tags:
|
|
query_params['filters']['tags'] = tags
|
|
|
|
# NOTE(mfedosin): param is still called sort_key, instead of sort_keys
|
|
# It's done because in v1 it's still a single value.
|
|
if sort_keys:
|
|
query_params['sort_key'] = sort_keys
|
|
else:
|
|
query_params['sort_key'] = ['created_at']
|
|
|
|
return query_params
|
|
|
|
|
|
class ResponseSerializer(wsgi.JSONResponseSerializer):
|
|
def __init__(self, schema=None):
|
|
super(ResponseSerializer, self).__init__()
|
|
self.schema = schema or get_schema()
|
|
|
|
def _get_image_href(self, image, subcollection=''):
|
|
base_href = '/v2/images/%s' % image.image_id
|
|
if subcollection:
|
|
base_href = '%s/%s' % (base_href, subcollection)
|
|
return base_href
|
|
|
|
def _format_image(self, image):
|
|
image_view = dict()
|
|
try:
|
|
image_view = dict(image.extra_properties)
|
|
attributes = ['name', 'disk_format', 'container_format',
|
|
'visibility', 'size', 'virtual_size', 'status',
|
|
'checksum', 'protected', 'min_ram', 'min_disk',
|
|
'owner']
|
|
for key in attributes:
|
|
image_view[key] = getattr(image, key)
|
|
image_view['id'] = image.image_id
|
|
image_view['created_at'] = timeutils.isotime(image.created_at)
|
|
image_view['updated_at'] = timeutils.isotime(image.updated_at)
|
|
|
|
if CONF.show_multiple_locations:
|
|
locations = list(image.locations)
|
|
if locations:
|
|
image_view['locations'] = []
|
|
for loc in locations:
|
|
tmp = dict(loc)
|
|
tmp.pop('id', None)
|
|
tmp.pop('status', None)
|
|
image_view['locations'].append(tmp)
|
|
else:
|
|
# NOTE (flwang): We will still show "locations": [] if
|
|
# image.locations is None to indicate it's allowed to show
|
|
# locations but it's just non-existent.
|
|
image_view['locations'] = []
|
|
LOG.debug("There is not available location "
|
|
"for image %s" % image.image_id)
|
|
|
|
if CONF.show_image_direct_url:
|
|
if image.locations:
|
|
# Choose best location configured strategy
|
|
l = location_strategy.choose_best_location(image.locations)
|
|
image_view['direct_url'] = l['url']
|
|
else:
|
|
LOG.debug("There is not available location "
|
|
"for image %s" % image.image_id)
|
|
|
|
image_view['tags'] = list(image.tags)
|
|
image_view['self'] = self._get_image_href(image)
|
|
image_view['file'] = self._get_image_href(image, 'file')
|
|
image_view['schema'] = '/v2/schemas/image'
|
|
image_view = self.schema.filter(image_view) # domain
|
|
except exception.Forbidden as e:
|
|
raise webob.exc.HTTPForbidden(explanation=e.msg)
|
|
return image_view
|
|
|
|
def create(self, response, image):
|
|
response.status_int = 201
|
|
self.show(response, image)
|
|
response.location = self._get_image_href(image)
|
|
|
|
def show(self, response, image):
|
|
image_view = self._format_image(image)
|
|
body = json.dumps(image_view, ensure_ascii=False)
|
|
response.unicode_body = six.text_type(body)
|
|
response.content_type = 'application/json'
|
|
|
|
def update(self, response, image):
|
|
image_view = self._format_image(image)
|
|
body = json.dumps(image_view, ensure_ascii=False)
|
|
response.unicode_body = six.text_type(body)
|
|
response.content_type = 'application/json'
|
|
|
|
def index(self, response, result):
|
|
params = dict(response.request.params)
|
|
params.pop('marker', None)
|
|
query = urlparse.urlencode(params)
|
|
body = {
|
|
'images': [self._format_image(i) for i in result['images']],
|
|
'first': '/v2/images',
|
|
'schema': '/v2/schemas/images',
|
|
}
|
|
if query:
|
|
body['first'] = '%s?%s' % (body['first'], query)
|
|
if 'next_marker' in result:
|
|
params['marker'] = result['next_marker']
|
|
next_query = urlparse.urlencode(params)
|
|
body['next'] = '/v2/images?%s' % next_query
|
|
response.unicode_body = six.text_type(json.dumps(body,
|
|
ensure_ascii=False))
|
|
response.content_type = 'application/json'
|
|
|
|
def delete(self, response, result):
|
|
response.status_int = 204
|
|
|
|
|
|
def get_base_properties():
|
|
return {
|
|
'id': {
|
|
'type': 'string',
|
|
'description': _('An identifier for the image'),
|
|
'pattern': ('^([0-9a-fA-F]){8}-([0-9a-fA-F]){4}-([0-9a-fA-F]){4}'
|
|
'-([0-9a-fA-F]){4}-([0-9a-fA-F]){12}$'),
|
|
},
|
|
'name': {
|
|
'type': ['null', 'string'],
|
|
'description': _('Descriptive name for the image'),
|
|
'maxLength': 255,
|
|
},
|
|
'status': {
|
|
'type': 'string',
|
|
'description': _('Status of the image (READ-ONLY)'),
|
|
'enum': ['queued', 'saving', 'active', 'killed',
|
|
'deleted', 'pending_delete'],
|
|
},
|
|
'visibility': {
|
|
'type': 'string',
|
|
'description': _('Scope of image accessibility'),
|
|
'enum': ['public', 'private'],
|
|
},
|
|
'protected': {
|
|
'type': 'boolean',
|
|
'description': _('If true, image will not be deletable.'),
|
|
},
|
|
'checksum': {
|
|
'type': ['null', 'string'],
|
|
'description': _('md5 hash of image contents. (READ-ONLY)'),
|
|
'maxLength': 32,
|
|
},
|
|
'owner': {
|
|
'type': ['null', 'string'],
|
|
'description': _('Owner of the image'),
|
|
'maxLength': 255,
|
|
},
|
|
'size': {
|
|
'type': ['null', 'integer'],
|
|
'description': _('Size of image file in bytes (READ-ONLY)'),
|
|
},
|
|
'virtual_size': {
|
|
'type': ['null', 'integer'],
|
|
'description': _('Virtual size of image in bytes (READ-ONLY)'),
|
|
},
|
|
'container_format': {
|
|
'type': ['null', 'string'],
|
|
'description': _('Format of the container'),
|
|
'enum': [None] + CONF.image_format.container_formats,
|
|
},
|
|
'disk_format': {
|
|
'type': ['null', 'string'],
|
|
'description': _('Format of the disk'),
|
|
'enum': [None] + CONF.image_format.disk_formats,
|
|
},
|
|
'created_at': {
|
|
'type': 'string',
|
|
'description': _('Date and time of image registration'
|
|
' (READ-ONLY)'),
|
|
# TODO(bcwaldon): our jsonschema library doesn't seem to like the
|
|
# format attribute, figure out why!
|
|
# 'format': 'date-time',
|
|
},
|
|
'updated_at': {
|
|
'type': 'string',
|
|
'description': _('Date and time of the last image modification'
|
|
' (READ-ONLY)'),
|
|
# 'format': 'date-time',
|
|
},
|
|
'tags': {
|
|
'type': 'array',
|
|
'description': _('List of strings related to the image'),
|
|
'items': {
|
|
'type': 'string',
|
|
'maxLength': 255,
|
|
},
|
|
},
|
|
'direct_url': {
|
|
'type': 'string',
|
|
'description': _('URL to access the image file kept in external '
|
|
'store (READ-ONLY)'),
|
|
},
|
|
'min_ram': {
|
|
'type': 'integer',
|
|
'description': _('Amount of ram (in MB) required to boot image.'),
|
|
},
|
|
'min_disk': {
|
|
'type': 'integer',
|
|
'description': _('Amount of disk space (in GB) required to boot '
|
|
'image.'),
|
|
},
|
|
'self': {
|
|
'type': 'string',
|
|
'description': '(READ-ONLY)'
|
|
},
|
|
'file': {
|
|
'type': 'string',
|
|
'description': '(READ-ONLY)'
|
|
},
|
|
'schema': {
|
|
'type': 'string',
|
|
'description': '(READ-ONLY)'
|
|
},
|
|
'locations': {
|
|
'type': 'array',
|
|
'items': {
|
|
'type': 'object',
|
|
'properties': {
|
|
'url': {
|
|
'type': 'string',
|
|
'maxLength': 255,
|
|
},
|
|
'metadata': {
|
|
'type': 'object',
|
|
},
|
|
},
|
|
'required': ['url', 'metadata'],
|
|
},
|
|
'description': _('A set of URLs to access the image file kept in '
|
|
'external store'),
|
|
},
|
|
}
|
|
|
|
|
|
def _get_base_links():
|
|
return [
|
|
{'rel': 'self', 'href': '{self}'},
|
|
{'rel': 'enclosure', 'href': '{file}'},
|
|
{'rel': 'describedby', 'href': '{schema}'},
|
|
]
|
|
|
|
|
|
def get_schema(custom_properties=None):
|
|
properties = get_base_properties()
|
|
links = _get_base_links()
|
|
if CONF.allow_additional_image_properties:
|
|
schema = glance.schema.PermissiveSchema('image', properties, links)
|
|
else:
|
|
schema = glance.schema.Schema('image', properties)
|
|
|
|
if custom_properties:
|
|
for property_value in custom_properties.values():
|
|
property_value['is_base'] = False
|
|
schema.merge_properties(custom_properties)
|
|
return schema
|
|
|
|
|
|
def get_collection_schema(custom_properties=None):
|
|
image_schema = get_schema(custom_properties)
|
|
return glance.schema.CollectionSchema('images', image_schema)
|
|
|
|
|
|
def load_custom_properties():
|
|
"""Find the schema properties files and load them into a dict."""
|
|
filename = 'schema-image.json'
|
|
match = CONF.find_file(filename)
|
|
if match:
|
|
with open(match, 'r') as schema_file:
|
|
schema_data = schema_file.read()
|
|
return json.loads(schema_data)
|
|
else:
|
|
msg = (_LW('Could not find schema properties file %s. Continuing '
|
|
'without custom properties') % filename)
|
|
LOG.warn(msg)
|
|
return {}
|
|
|
|
|
|
def create_resource(custom_properties=None):
|
|
"""Images resource factory method"""
|
|
schema = get_schema(custom_properties)
|
|
deserializer = RequestDeserializer(schema)
|
|
serializer = ResponseSerializer(schema)
|
|
controller = ImagesController()
|
|
return wsgi.Resource(controller, deserializer, serializer)
|