/usr/share/pyshared/glance/api/v1/members.py is in python-glance 2012.1.3+stable~20120821-120fcf-0ubuntu1.5.
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# Copyright 2012 OpenStack LLC.
# 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 logging
import webob.exc
from glance.common import exception
from glance.common import wsgi
from glance import registry
logger = logging.getLogger('glance.api.v1.members')
class Controller(object):
def __init__(self, conf):
self.conf = conf
def index(self, req, image_id):
"""
Return a list of dictionaries indicating the members of the
image, i.e., those tenants the image is shared with.
:param req: the Request object coming from the wsgi layer
:param image_id: The opaque image identifier
:retval The response body is a mapping of the following form::
{'members': [
{'member_id': <MEMBER>,
'can_share': <SHARE_PERMISSION>, ...}, ...
]}
"""
try:
members = registry.get_image_members(req.context, image_id)
except exception.NotFound:
msg = _("Image with identifier %s not found") % image_id
logger.debug(msg)
raise webob.exc.HTTPNotFound(msg)
except exception.Forbidden:
msg = _("Unauthorized image access")
logger.debug(msg)
raise webob.exc.HTTPForbidden(msg)
return dict(members=members)
def delete(self, req, image_id, id):
"""
Removes a membership from the image.
"""
if req.context.read_only:
raise webob.exc.HTTPForbidden()
elif req.context.owner is None:
raise webob.exc.HTTPUnauthorized(_("No authenticated user"))
try:
registry.delete_member(req.context, image_id, id)
except exception.NotFound, e:
msg = "%s" % e
logger.debug(msg)
raise webob.exc.HTTPNotFound(msg)
except exception.Forbidden, e:
msg = "%s" % e
logger.debug(msg)
raise webob.exc.HTTPNotFound(msg)
return webob.exc.HTTPNoContent()
def default(self, req, image_id, id, body=None):
"""This will cover the missing 'show' and 'create' actions"""
raise webob.exc.HTTPMethodNotAllowed()
def update(self, req, image_id, id, body=None):
"""
Adds a membership to the image, or updates an existing one.
If a body is present, it is a dict with the following format::
{"member": {
"can_share": [True|False]
}}
If "can_share" is provided, the member's ability to share is
set accordingly. If it is not provided, existing memberships
remain unchanged and new memberships default to False.
"""
if req.context.read_only:
raise webob.exc.HTTPForbidden()
elif req.context.owner is None:
raise webob.exc.HTTPUnauthorized(_("No authenticated user"))
# Figure out can_share
can_share = None
if body and 'member' in body and 'can_share' in body['member']:
can_share = bool(body['member']['can_share'])
try:
registry.add_member(req.context, image_id, id, can_share)
except exception.Invalid, e:
msg = "%s" % e
logger.debug(msg)
raise webob.exc.HTTPBadRequest(explanation=msg)
except exception.NotFound, e:
msg = "%s" % e
logger.debug(msg)
raise webob.exc.HTTPNotFound(msg)
except exception.Forbidden, e:
msg = "%s" % e
logger.debug(msg)
raise webob.exc.HTTPNotFound(msg)
return webob.exc.HTTPNoContent()
def update_all(self, req, image_id, body):
"""
Replaces the members of the image with those specified in the
body. The body is a dict with the following format::
{"memberships": [
{"member_id": <MEMBER_ID>,
["can_share": [True|False]]}, ...
]}
"""
if req.context.read_only:
raise webob.exc.HTTPForbidden()
elif req.context.owner is None:
raise webob.exc.HTTPUnauthorized(_("No authenticated user"))
try:
registry.replace_members(req.context, image_id, body)
except exception.Invalid, e:
msg = "%s" % e
logger.debug(msg)
raise webob.exc.HTTPBadRequest(explanation=msg)
except exception.NotFound, e:
msg = "%s" % e
logger.debug(msg)
raise webob.exc.HTTPNotFound(msg)
except exception.Forbidden, e:
msg = "%s" % e
logger.debug(msg)
raise webob.exc.HTTPNotFound(msg)
return webob.exc.HTTPNoContent()
def index_shared_images(self, req, id):
"""
Retrieves list of image memberships for the given member.
:param req: the Request object coming from the wsgi layer
:param id: the opaque member identifier
:retval The response body is a mapping of the following form::
{'shared_images': [
{'image_id': <IMAGE>,
'can_share': <SHARE_PERMISSION>, ...}, ...
]}
"""
try:
members = registry.get_member_images(req.context, id)
except exception.NotFound, e:
msg = "%s" % e
logger.debug(msg)
raise webob.exc.HTTPNotFound(msg)
except exception.Forbidden, e:
msg = "%s" % e
logger.debug(msg)
raise webob.exc.HTTPForbidden(msg)
return dict(shared_images=members)
def create_resource(conf):
"""Image members resource factory method"""
deserializer = wsgi.JSONRequestDeserializer()
serializer = wsgi.JSONResponseSerializer()
return wsgi.Resource(Controller(conf), deserializer, serializer)
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