def serve(request, signature, image_id, filter_spec):
image = get_object_or_404(get_image_model(), id=image_id)
if not verify_signature(signature.encode(), image_id, filter_spec):
raise PermissionDenied
try:
return Filter(spec=filter_spec).process_image(image.file.file, HttpResponse(content_type='image/jpeg'), focal_point=image.focal_point)
except Filter.InvalidFilterSpecError:
return HttpResponse("Invalid filter spec: " + filter_spec, content_type='text/plain', status=400)
def serve(request, signature, image_id, filter_spec):
image = get_object_or_404(get_image_model(), id=image_id)
if not verify_signature(signature.encode(), image_id, filter_spec):
raise PermissionDenied
try:
return Filter(spec=filter_spec).process_image(image.file.file, HttpResponse(content_type='image/jpeg'), focal_point=image.focal_point)
except Filter.InvalidFilterSpecError:
return HttpResponse("Invalid filter spec: " + filter_spec, content_type='text/plain', status=400)
def test_signature_changes_on_filter_spec(self):
self.assertFalse(verify_signature(b'xnZOzQyUg6pkfciqcfRJRosOrGg=', 100, 'fill-800x700'))
def test_signature_changes_on_image_id(self):
self.assertFalse(verify_signature(b'xnZOzQyUg6pkfciqcfRJRosOrGg=', 200, 'fill-800x600'))
def test_signature_verification(self):
self.assertTrue(verify_signature(b'xnZOzQyUg6pkfciqcfRJRosOrGg=', 100, 'fill-800x600'))
def test_signature_changes_on_filter_spec(self):
self.assertFalse(
verify_signature(b'xnZOzQyUg6pkfciqcfRJRosOrGg=', 100,
'fill-800x700'))
def test_signature_changes_on_image_id(self):
self.assertFalse(
verify_signature(b'xnZOzQyUg6pkfciqcfRJRosOrGg=', 200,
'fill-800x600'))
def test_signature_verification(self):
self.assertTrue(
verify_signature(b'xnZOzQyUg6pkfciqcfRJRosOrGg=', 100,
'fill-800x600'))
