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