/usr/share/pyshared/glance/api/cached_images.py is in python-glance 2012.1.3+stable~20120821-120fcf-0ubuntu1.5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | # vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 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.
"""
Controller for Image Cache Management API
"""
import logging
import webob.exc
from glance.api import policy
from glance.api.v1 import controller
from glance.common import exception
from glance.common import wsgi
from glance import image_cache
logger = logging.getLogger(__name__)
class Controller(controller.BaseController):
"""
A controller for managing cached images.
"""
def __init__(self, conf):
self.conf = conf
self.cache = image_cache.ImageCache(self.conf)
self.policy = policy.Enforcer(conf)
def _enforce(self, req):
"""Authorize request against 'manage_image_cache' policy"""
try:
self.policy.enforce(req.context, 'manage_image_cache', {})
except exception.Forbidden:
raise webob.exc.HTTPForbidden()
def get_cached_images(self, req):
"""
GET /cached_images
Returns a mapping of records about cached images.
"""
self._enforce(req)
images = self.cache.get_cached_images()
return dict(cached_images=images)
def delete_cached_image(self, req, image_id):
"""
DELETE /cached_images/<IMAGE_ID>
Removes an image from the cache.
"""
self._enforce(req)
self.cache.delete_cached_image(image_id)
def delete_cached_images(self, req):
"""
DELETE /cached_images - Clear all active cached images
Removes all images from the cache.
"""
self._enforce(req)
return dict(num_deleted=self.cache.delete_all_cached_images())
def get_queued_images(self, req):
"""
GET /queued_images
Returns a mapping of records about queued images.
"""
self._enforce(req)
images = self.cache.get_queued_images()
return dict(queued_images=images)
def queue_image(self, req, image_id):
"""
PUT /queued_images/<IMAGE_ID>
Queues an image for caching. We do not check to see if
the image is in the registry here. That is done by the
prefetcher...
"""
self._enforce(req)
self.cache.queue_image(image_id)
def delete_queued_image(self, req, image_id):
"""
DELETE /queued_images/<IMAGE_ID>
Removes an image from the cache.
"""
self._enforce(req)
self.cache.delete_queued_image(image_id)
def delete_queued_images(self, req):
"""
DELETE /queued_images - Clear all active queued images
Removes all images from the cache.
"""
self._enforce(req)
return dict(num_deleted=self.cache.delete_all_queued_images())
class CachedImageDeserializer(wsgi.JSONRequestDeserializer):
pass
class CachedImageSerializer(wsgi.JSONResponseSerializer):
pass
def create_resource(conf):
"""Cached Images resource factory method"""
deserializer = CachedImageDeserializer()
serializer = CachedImageSerializer()
return wsgi.Resource(Controller(conf), deserializer, serializer)
|