def __iter__(self):
for chunk in self.data:
self.bytes_read += len(chunk)
if self.bytes_read > self.limit:
raise exception.ImageSizeLimitExceeded()
else:
yield chunk
def test_image_stage_raises_image_size_exceeded(self, mock_store_add):
mock_store_add.side_effect = exception.ImageSizeLimitExceeded()
image_id = str(uuid.uuid4())
request = unit_test_utils.get_fake_request()
image = FakeImage(image_id=image_id)
self.image_repo.result = image
with mock.patch.object(self.controller, "_unstage"):
self.assertRaises(webob.exc.HTTPRequestEntityTooLarge,
self.controller.stage, request, image_id,
'YYYYYYY', 7)
def limiting_iter(iter, limit):
"""
Iterator designed to fail when reading image data past the configured
allowable amount.
"""
bytes_read = 0
for chunk in iter:
bytes_read += len(chunk)
if bytes_read > limit:
raise exception.ImageSizeLimitExceeded()
else:
yield chunk
def read(self, i):
result = self.data.read(i)
self.bytes_read += len(result)
if self.bytes_read > self.limit:
raise exception.ImageSizeLimitExceeded()
return result