glance/glance/tests/unit/v2/test_image_data_resource.py

416 lines
16 KiB
Python

# Copyright 2012 OpenStack Foundation.
# 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 mock
import StringIO
import uuid
import webob
import glance.api.v2.image_data
from glance.common import exception
from glance.tests.unit import base
import glance.tests.unit.utils as unit_test_utils
import glance.tests.utils as test_utils
class Raise(object):
def __init__(self, exc):
self.exc = exc
def __call__(self, *args, **kwargs):
raise self.exc
class FakeImage(object):
def __init__(self, image_id=None, data=None, checksum=None, size=0,
locations=None, container_format='bear', disk_format='rawr',
status=None):
self.image_id = image_id
self.data = data
self.checksum = checksum
self.size = size
self.locations = locations
self.container_format = container_format
self.disk_format = disk_format
self._status = status
@property
def status(self):
return self._status
@status.setter
def status(self, value):
if isinstance(self._status, BaseException):
raise self._status
else:
self._status = value
def get_data(self):
return self.data
def set_data(self, data, size=None):
self.data = ''.join(data)
self.size = size
self.status = 'modified-by-fake'
class FakeImageRepo(object):
def __init__(self, result=None):
self.result = result
def get(self, image_id):
if isinstance(self.result, BaseException):
raise self.result
else:
return self.result
def save(self, image):
self.saved_image = image
class FakeGateway(object):
def __init__(self, repo):
self.repo = repo
def get_repo(self, context):
return self.repo
class TestImagesController(base.StoreClearingUnitTest):
def setUp(self):
super(TestImagesController, self).setUp()
self.config(verbose=True, debug=True)
self.image_repo = FakeImageRepo()
self.gateway = FakeGateway(self.image_repo)
self.controller = glance.api.v2.image_data.ImageDataController(
gateway=self.gateway)
def test_download(self):
request = unit_test_utils.get_fake_request()
image = FakeImage('abcd', locations=['http://example.com/image'])
self.image_repo.result = image
image = self.controller.download(request, unit_test_utils.UUID1)
self.assertEqual(image.image_id, 'abcd')
def test_download_no_location(self):
request = unit_test_utils.get_fake_request()
self.image_repo.result = FakeImage('abcd')
self.assertRaises(webob.exc.HTTPNoContent, self.controller.download,
request, unit_test_utils.UUID2)
def test_download_non_existent_image(self):
request = unit_test_utils.get_fake_request()
self.image_repo.result = exception.NotFound()
self.assertRaises(webob.exc.HTTPNotFound, self.controller.download,
request, str(uuid.uuid4()))
def test_download_forbidden(self):
request = unit_test_utils.get_fake_request()
self.image_repo.result = exception.Forbidden()
self.assertRaises(webob.exc.HTTPForbidden, self.controller.download,
request, str(uuid.uuid4()))
def test_download_get_image_location_forbidden(self):
class ImageLocations(object):
def __len__(self):
raise exception.Forbidden()
request = unit_test_utils.get_fake_request()
image = FakeImage('abcd')
self.image_repo.result = image
image.locations = ImageLocations()
self.assertRaises(webob.exc.HTTPForbidden, self.controller.download,
request, str(uuid.uuid4()))
def test_upload(self):
request = unit_test_utils.get_fake_request()
image = FakeImage('abcd')
self.image_repo.result = image
self.controller.upload(request, unit_test_utils.UUID2, 'YYYY', 4)
self.assertEqual(image.data, 'YYYY')
self.assertEqual(image.size, 4)
def test_upload_status(self):
request = unit_test_utils.get_fake_request()
image = FakeImage('abcd')
self.image_repo.result = image
insurance = {'called': False}
def read_data():
insurance['called'] = True
self.assertEqual(self.image_repo.saved_image.status, 'saving')
yield 'YYYY'
self.controller.upload(request, unit_test_utils.UUID2,
read_data(), None)
self.assertTrue(insurance['called'])
self.assertEqual(self.image_repo.saved_image.status,
'modified-by-fake')
def test_upload_no_size(self):
request = unit_test_utils.get_fake_request()
image = FakeImage('abcd')
self.image_repo.result = image
self.controller.upload(request, unit_test_utils.UUID2, 'YYYY', None)
self.assertEqual(image.data, 'YYYY')
self.assertEqual(image.size, None)
def test_upload_invalid(self):
request = unit_test_utils.get_fake_request()
image = FakeImage('abcd')
image.status = ValueError()
self.image_repo.result = image
self.assertRaises(webob.exc.HTTPBadRequest, self.controller.upload,
request, unit_test_utils.UUID1, 'YYYY', 4)
def test_upload_non_existent_image_during_save_initiates_deletion(self):
def fake_save(self):
raise exception.NotFound()
request = unit_test_utils.get_fake_request()
image = FakeImage('abcd', locations=['http://example.com/image'])
self.image_repo.result = image
self.image_repo.save = fake_save
image.delete = mock.Mock()
self.assertRaises(webob.exc.HTTPGone, self.controller.upload,
request, str(uuid.uuid4()), 'ABC', 3)
self.assertTrue(image.delete.called)
def test_upload_non_existent_image_before_save(self):
request = unit_test_utils.get_fake_request()
self.image_repo.result = exception.NotFound()
self.assertRaises(webob.exc.HTTPNotFound, self.controller.upload,
request, str(uuid.uuid4()), 'ABC', 3)
def test_upload_data_exists(self):
request = unit_test_utils.get_fake_request()
image = FakeImage()
image.set_data = Raise(exception.Duplicate)
self.image_repo.result = image
self.assertRaises(webob.exc.HTTPConflict, self.controller.upload,
request, unit_test_utils.UUID1, 'YYYY', 4)
def test_upload_storage_full(self):
request = unit_test_utils.get_fake_request()
image = FakeImage()
image.set_data = Raise(exception.StorageFull)
self.image_repo.result = image
self.assertRaises(webob.exc.HTTPRequestEntityTooLarge,
self.controller.upload,
request, unit_test_utils.UUID2, 'YYYYYYY', 7)
def test_upload_storage_forbidden(self):
request = unit_test_utils.get_fake_request(user=unit_test_utils.USER2)
image = FakeImage()
image.set_data = Raise(exception.Forbidden)
self.image_repo.result = image
self.assertRaises(webob.exc.HTTPForbidden, self.controller.upload,
request, unit_test_utils.UUID2, 'YY', 2)
def test_upload_storage_write_denied(self):
request = unit_test_utils.get_fake_request(user=unit_test_utils.USER3)
image = FakeImage()
image.set_data = Raise(exception.StorageWriteDenied)
self.image_repo.result = image
self.assertRaises(webob.exc.HTTPServiceUnavailable,
self.controller.upload,
request, unit_test_utils.UUID2, 'YY', 2)
def _test_upload_download_prepare_notification(self):
request = unit_test_utils.get_fake_request()
self.controller.upload(request, unit_test_utils.UUID2, 'YYYY', 4)
output = self.controller.download(request, unit_test_utils.UUID2)
output_log = self.notifier.get_logs()
prepare_payload = output['meta'].copy()
prepare_payload['checksum'] = None
prepare_payload['size'] = None
prepare_payload['location'] = None
prepare_payload['status'] = 'queued'
del prepare_payload['updated_at']
prepare_log = {
'notification_type': "INFO",
'event_type': "image.prepare",
'payload': prepare_payload,
}
self.assertEqual(len(output_log), 3)
prepare_updated_at = output_log[0]['payload']['updated_at']
del output_log[0]['payload']['updated_at']
self.assertTrue(prepare_updated_at <= output['meta']['updated_at'])
self.assertEqual(output_log[0], prepare_log)
def _test_upload_download_upload_notification(self):
request = unit_test_utils.get_fake_request()
self.controller.upload(request, unit_test_utils.UUID2, 'YYYY', 4)
output = self.controller.download(request, unit_test_utils.UUID2)
output_log = self.notifier.get_logs()
upload_payload = output['meta'].copy()
upload_log = {
'notification_type': "INFO",
'event_type': "image.upload",
'payload': upload_payload,
}
self.assertEqual(len(output_log), 3)
self.assertEqual(output_log[1], upload_log)
def _test_upload_download_activate_notification(self):
request = unit_test_utils.get_fake_request()
self.controller.upload(request, unit_test_utils.UUID2, 'YYYY', 4)
output = self.controller.download(request, unit_test_utils.UUID2)
output_log = self.notifier.get_logs()
activate_payload = output['meta'].copy()
activate_log = {
'notification_type': "INFO",
'event_type': "image.activate",
'payload': activate_payload,
}
self.assertEqual(len(output_log), 3)
self.assertEqual(output_log[2], activate_log)
class TestImageDataDeserializer(test_utils.BaseTestCase):
def setUp(self):
super(TestImageDataDeserializer, self).setUp()
self.deserializer = glance.api.v2.image_data.RequestDeserializer()
def test_upload(self):
request = unit_test_utils.get_fake_request()
request.headers['Content-Type'] = 'application/octet-stream'
request.body = 'YYY'
request.headers['Content-Length'] = 3
output = self.deserializer.upload(request)
data = output.pop('data')
self.assertEqual(data.read(), 'YYY')
expected = {'size': 3}
self.assertEqual(expected, output)
def test_upload_chunked(self):
request = unit_test_utils.get_fake_request()
request.headers['Content-Type'] = 'application/octet-stream'
# If we use body_file, webob assumes we want to do a chunked upload,
# ignoring the Content-Length header
request.body_file = StringIO.StringIO('YYY')
output = self.deserializer.upload(request)
data = output.pop('data')
self.assertEqual(data.read(), 'YYY')
expected = {'size': None}
self.assertEqual(expected, output)
def test_upload_chunked_with_content_length(self):
request = unit_test_utils.get_fake_request()
request.headers['Content-Type'] = 'application/octet-stream'
request.body_file = StringIO.StringIO('YYY')
# The deserializer shouldn't care if the Content-Length is
# set when the user is attempting to send chunked data.
request.headers['Content-Length'] = 3
output = self.deserializer.upload(request)
data = output.pop('data')
self.assertEqual(data.read(), 'YYY')
expected = {'size': 3}
self.assertEqual(expected, output)
def test_upload_with_incorrect_content_length(self):
request = unit_test_utils.get_fake_request()
request.headers['Content-Type'] = 'application/octet-stream'
# The deserializer shouldn't care if the Content-Length and
# actual request body length differ. That job is left up
# to the controller
request.body = 'YYY'
request.headers['Content-Length'] = 4
output = self.deserializer.upload(request)
data = output.pop('data')
self.assertEqual(data.read(), 'YYY')
expected = {'size': 4}
self.assertEqual(expected, output)
def test_upload_wrong_content_type(self):
request = unit_test_utils.get_fake_request()
request.headers['Content-Type'] = 'application/json'
request.body = 'YYYYY'
self.assertRaises(webob.exc.HTTPUnsupportedMediaType,
self.deserializer.upload, request)
request = unit_test_utils.get_fake_request()
request.headers['Content-Type'] = 'application/octet-st'
request.body = 'YYYYY'
self.assertRaises(webob.exc.HTTPUnsupportedMediaType,
self.deserializer.upload, request)
class TestImageDataSerializer(test_utils.BaseTestCase):
def setUp(self):
super(TestImageDataSerializer, self).setUp()
self.serializer = glance.api.v2.image_data.ResponseSerializer()
def test_download(self):
request = webob.Request.blank('/')
request.environ = {}
response = webob.Response()
response.request = request
image = FakeImage(size=3, data=iter('ZZZ'))
self.serializer.download(response, image)
self.assertEqual('ZZZ', response.body)
self.assertEqual('3', response.headers['Content-Length'])
self.assertFalse('Content-MD5' in response.headers)
self.assertEqual('application/octet-stream',
response.headers['Content-Type'])
def test_download_with_checksum(self):
request = webob.Request.blank('/')
request.environ = {}
response = webob.Response()
response.request = request
checksum = '0745064918b49693cca64d6b6a13d28a'
image = FakeImage(size=3, checksum=checksum, data=iter('ZZZ'))
self.serializer.download(response, image)
self.assertEqual('ZZZ', response.body)
self.assertEqual('3', response.headers['Content-Length'])
self.assertEqual(checksum, response.headers['Content-MD5'])
self.assertEqual('application/octet-stream',
response.headers['Content-Type'])
def test_download_forbidden(self):
"""Make sure the serializer can return 403 forbidden error instead of
500 internal server error.
"""
def get_data():
raise exception.Forbidden()
self.stubs.Set(glance.api.policy.ImageProxy,
'get_data',
get_data)
request = webob.Request.blank('/')
request.environ = {}
response = webob.Response()
response.request = request
image = FakeImage(size=3, data=iter('ZZZ'))
image.get_data = get_data
self.assertRaises(webob.exc.HTTPForbidden,
self.serializer.download,
response, image)
def test_upload(self):
request = webob.Request.blank('/')
request.environ = {}
response = webob.Response()
response.request = request
self.serializer.upload(response, {})
self.assertEqual(204, response.status_int)
self.assertEqual('0', response.headers['Content-Length'])