65 lines
2.3 KiB
Python
65 lines
2.3 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack LLC.
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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 logging
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import webob.exc
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from glance import registry
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from glance.common import exception
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logger = logging.getLogger(__name__)
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class BaseController(object):
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def get_image_meta_or_404(self, request, image_id):
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"""
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Grabs the image metadata for an image with a supplied
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identifier or raises an HTTPNotFound (404) response
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:param request: The WSGI/Webob Request object
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:param image_id: The opaque image identifier
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:raises HTTPNotFound if image does not exist
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"""
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context = request.context
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try:
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return registry.get_image_metadata(context, image_id)
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except exception.NotFound:
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msg = _("Image with identifier %s not found") % image_id
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logger.debug(msg)
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raise webob.exc.HTTPNotFound(
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msg, request=request, content_type='text/plain')
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except exception.NotAuthorized:
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msg = _("Unauthorized image access")
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logger.debug(msg)
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raise webob.exc.HTTPForbidden(msg, request=request,
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content_type='text/plain')
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def get_active_image_meta_or_404(self, request, image_id):
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"""
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Same as get_image_meta_or_404 except that it will raise a 404 if the
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image isn't 'active'.
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"""
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image = self.get_image_meta_or_404(request, image_id)
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if image['status'] != 'active':
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msg = _("Image %s is not active") % image_id
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logger.debug(msg)
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raise webob.exc.HTTPNotFound(
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msg, request=request, content_type='text/plain')
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return image
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