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# 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 django.template.defaultfilters import filesizeformat
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from openstack_dashboard.api import glance
def get_available_images(request, project_id=None, images_cache=None):
"""Returns a list of images that are public or owned by the given
project_id. If project_id is not specified, only public images
are returned.
:param images_cache: An optional dict-like object in which to
cache public and per-project id image metadata.
"""
if images_cache is None:
images_cache = {}
public_images = images_cache.get('public_images', [])
images_by_project = images_cache.get('images_by_project', {})
if 'public_images' not in images_cache:
public = {"is_public": True,
"status": "active"}
try:
images, _more, _prev = glance.image_list_detailed(
request, filters=public)
[public_images.append(image) for image in images]
images_cache['public_images'] = public_images
except Exception:
exceptions.handle(request,
_("Unable to retrieve public images."))
# Preempt if we don't have a project_id yet.
if project_id is None:
images_by_project[project_id] = []
if project_id not in images_by_project:
owner = {"property-owner_id": project_id,
"status": "active"}
try:
owned_images, _more, _prev = glance.image_list_detailed(
request, filters=owner)
images_by_project[project_id] = owned_images
except Exception:
owned_images = []
exceptions.handle(request,
_("Unable to retrieve images for "
"the current project."))
else:
owned_images = images_by_project[project_id]
if 'images_by_project' not in images_cache:
images_cache['images_by_project'] = images_by_project
images = owned_images + public_images
image_ids = []
final_images = []
for image in images:
if image.id not in image_ids and \
image.container_format not in ('aki', 'ari'):
image_ids.append(image.id)
final_images.append(image)
return final_images
def image_field_data(request, include_empty_option=False):
"""Returns a list of tuples of all images.
Generates a sorted list of images available. And returns a list of
(id, name) tuples.
:param request: django http request object
:param include_empty_option: flag to include a empty tuple in the front of
the list
:return: list of (id, name) tuples
"""
try:
images = get_available_images(request, request.user.project_id)
except Exception:
exceptions.handle(request, _('Unable to retrieve images'))
images.sort(key=lambda c: c.name)
images_list = [('', _('Select Image'))]
for image in images:
image_label = u"{} ({})".format(image.name, filesizeformat(image.size))
images_list.append((image.id, image_label))
if not images:
return [("", _("No images available")), ]
return images_list
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