import re from dataclasses import asdict from io import BytesIO, StringIO from unittest.mock import patch import orjson import pyvips from django.conf import settings from django.http.request import MediaType from django.test import override_settings from zerver.lib.test_classes import ZulipTestCase from zerver.lib.test_helpers import ( consume_response, get_test_image_file, ratelimit_rule, read_test_image_file, ) from zerver.lib.thumbnail import ( BadImageError, BaseThumbnailFormat, StoredThumbnailFormat, ThumbnailFormat, get_image_thumbnail_path, missing_thumbnails, resize_emoji, split_thumbnail_path, ) from zerver.lib.upload import all_message_attachments, save_attachment_contents from zerver.models import Attachment, ImageAttachment from zerver.views.upload import closest_thumbnail_format from zerver.worker.thumbnail import ensure_thumbnails class ThumbnailRedirectEndpointTest(ZulipTestCase): """Tests for the legacy /thumbnail endpoint.""" def test_thumbnail_upload_redirect(self) -> None: self.login("hamlet") fp = StringIO("zulip!") fp.name = "zulip.jpeg" result = self.client_post("/json/user_uploads", {"file": fp}) self.assert_json_success(result) json = orjson.loads(result.content) self.assertIn("uri", json) self.assertIn("url", json) url = json["url"] self.assertEqual(json["uri"], url) base = "/user_uploads/" self.assertEqual(base, url[: len(base)]) result = self.client_get("/thumbnail", {"url": url.removeprefix("/"), "size": "full"}) self.assertEqual(result.status_code, 200) self.assertEqual(result.getvalue(), b"zulip!") self.login("iago") result = self.client_get("/thumbnail", {"url": url.removeprefix("/"), "size": "full"}) self.assertEqual(result.status_code, 403, result) self.assert_in_response("You are not authorized to view this file.", result) def test_thumbnail_external_redirect(self) -> None: url = "https://www.google.com/images/srpr/logo4w.png" result = self.client_get("/thumbnail", {"url": url, "size": "full"}) self.assertEqual(result.status_code, 403) url = "http://www.google.com/images/srpr/logo4w.png" result = self.client_get("/thumbnail", {"url": url, "size": "full"}) self.assertEqual(result.status_code, 403) url = "//www.google.com/images/srpr/logo4w.png" result = self.client_get("/thumbnail", {"url": url, "size": "full"}) self.assertEqual(result.status_code, 403) @override_settings(RATE_LIMITING=True) def test_thumbnail_redirect_for_spectator(self) -> None: self.login("hamlet") fp = StringIO("zulip!") fp.name = "zulip.jpeg" result = self.client_post("/json/user_uploads", {"file": fp}) self.assert_json_success(result) json = orjson.loads(result.content) url = json["url"] self.assertEqual(json["uri"], url) with ratelimit_rule(86400, 1000, domain="spectator_attachment_access_by_file"): # Deny file access for non-web-public stream self.subscribe(self.example_user("hamlet"), "Denmark") host = self.example_user("hamlet").realm.host body = f"First message ...[zulip.txt](http://{host}" + url + ")" self.send_stream_message(self.example_user("hamlet"), "Denmark", body, "test") self.logout() response = self.client_get("/thumbnail", {"url": url.removeprefix("/"), "size": "full"}) self.assertEqual(response.status_code, 302) self.assertTrue(response["Location"].startswith("/accounts/login/?next=")) # Allow file access for web-public stream self.login("hamlet") self.make_stream("web-public-stream", is_web_public=True) self.subscribe(self.example_user("hamlet"), "web-public-stream") body = f"First message ...[zulip.txt](http://{host}" + url + ")" self.send_stream_message(self.example_user("hamlet"), "web-public-stream", body, "test") self.logout() response = self.client_get("/thumbnail", {"url": url.removeprefix("/"), "size": "full"}) self.assertEqual(response.status_code, 200) # Deny file access since rate limited with ratelimit_rule(86400, 0, domain="spectator_attachment_access_by_file"): response = self.client_get("/thumbnail", {"url": url.removeprefix("/"), "size": "full"}) self.assertEqual(response.status_code, 302) self.assertTrue(response["Location"].startswith("/accounts/login/?next=")) # Deny random file access response = self.client_get( "/thumbnail", { "url": "user_uploads/2/71/QYB7LA-ULMYEad-QfLMxmI2e/zulip-non-existent.txt", "size": "full", }, ) self.assertEqual(response.status_code, 404) class ThumbnailEmojiTest(ZulipTestCase): def animated_test(self, filename: str) -> None: animated_unequal_img_data = read_test_image_file(filename) original_image = pyvips.Image.new_from_buffer(animated_unequal_img_data, "n=-1") resized_img_data, still_img_data = resize_emoji( animated_unequal_img_data, filename, size=50 ) assert still_img_data is not None emoji_image = pyvips.Image.new_from_buffer(resized_img_data, "n=-1") self.assertEqual(emoji_image.get("vips-loader"), "gifload_buffer") self.assertEqual(emoji_image.get_n_pages(), original_image.get_n_pages()) self.assertEqual(emoji_image.get("page-height"), 50) self.assertEqual(emoji_image.height, 150) self.assertEqual(emoji_image.width, 50) still_image = pyvips.Image.new_from_buffer(still_img_data, "") self.assertEqual(still_image.get("vips-loader"), "pngload_buffer") self.assertEqual(still_image.get_n_pages(), 1) self.assertEqual(still_image.height, 50) self.assertEqual(still_image.width, 50) def test_resize_animated_square(self) -> None: """An animated image which is square""" self.animated_test("animated_large_img.gif") def test_resize_animated_emoji(self) -> None: """An animated image which is not square""" self.animated_test("animated_unequal_img.gif") def test_resize_corrupt_emoji(self) -> None: corrupted_img_data = read_test_image_file("corrupt.gif") with self.assertRaises(BadImageError): resize_emoji(corrupted_img_data, "corrupt.gif") def test_resize_too_many_pixels(self) -> None: """An image file with too many pixels is not resized""" with patch("zerver.lib.thumbnail.IMAGE_BOMB_TOTAL_PIXELS", 100): animated_large_img_data = read_test_image_file("animated_large_img.gif") with self.assertRaises(BadImageError): resize_emoji(animated_large_img_data, "animated_large_img.gif", size=50) bomb_img_data = read_test_image_file("bomb.png") with self.assertRaises(BadImageError): resize_emoji(bomb_img_data, "bomb.png", size=50) def test_resize_still_gif(self) -> None: """A non-animated square emoji resize""" still_large_img_data = read_test_image_file("still_large_img.gif") resized_img_data, no_still_data = resize_emoji( still_large_img_data, "still_large_img.gif", size=50 ) emoji_image = pyvips.Image.new_from_buffer(resized_img_data, "n=-1") self.assertEqual(emoji_image.get("vips-loader"), "gifload_buffer") self.assertEqual(emoji_image.height, 50) self.assertEqual(emoji_image.width, 50) self.assertEqual(emoji_image.get_n_pages(), 1) assert no_still_data is None def test_resize_still_jpg(self) -> None: """A non-animatatable format resize""" still_large_img_data = read_test_image_file("img.jpg") resized_img_data, no_still_data = resize_emoji(still_large_img_data, "img.jpg", size=50) emoji_image = pyvips.Image.new_from_buffer(resized_img_data, "") self.assertEqual(emoji_image.get("vips-loader"), "jpegload_buffer") self.assertEqual(emoji_image.height, 50) self.assertEqual(emoji_image.width, 50) self.assertEqual(emoji_image.get_n_pages(), 1) assert no_still_data is None def test_non_image_format_wrong_content_type(self) -> None: """A file that is not an image""" non_img_data = read_test_image_file("text.txt") with self.assertRaises(BadImageError): resize_emoji(non_img_data, "text.png", size=50) class ThumbnailClassesTest(ZulipTestCase): def test_class_equivalence(self) -> None: self.assertNotEqual( ThumbnailFormat("webp", 150, 100, animated=True, opts="Q=90"), "150x100-anim.webp", ) self.assertEqual( ThumbnailFormat("webp", 150, 100, animated=True, opts="Q=90"), ThumbnailFormat("webp", 150, 100, animated=True, opts="Q=10"), ) self.assertEqual( ThumbnailFormat("webp", 150, 100, animated=True, opts="Q=90"), BaseThumbnailFormat("webp", 150, 100, animated=True), ) self.assertNotEqual( ThumbnailFormat("jpeg", 150, 100, animated=True, opts="Q=90"), ThumbnailFormat("webp", 150, 100, animated=True, opts="Q=90"), ) self.assertNotEqual( ThumbnailFormat("webp", 300, 100, animated=True, opts="Q=90"), ThumbnailFormat("webp", 150, 100, animated=True, opts="Q=90"), ) self.assertNotEqual( ThumbnailFormat("webp", 150, 100, animated=False, opts="Q=90"), ThumbnailFormat("webp", 150, 100, animated=True, opts="Q=90"), ) # We can compare stored thumbnails, with much more metadata, # to the thumbnail formats that spec how they are generated self.assertEqual( ThumbnailFormat("webp", 150, 100, animated=False, opts="Q=90"), StoredThumbnailFormat( "webp", 150, 100, animated=False, content_type="image/webp", width=120, height=100, byte_size=123, ), ) # But differences in the base four properties mean they are not equal self.assertNotEqual( ThumbnailFormat("webp", 150, 100, animated=False, opts="Q=90"), StoredThumbnailFormat( "webp", 150, 100, animated=True, # Note this change content_type="image/webp", width=120, height=100, byte_size=123, ), ) def test_stringification(self) -> None: # These formats need to be stable, since they are written into URLs in the messages. self.assertEqual( str(ThumbnailFormat("webp", 150, 100, animated=False)), "150x100.webp", ) self.assertEqual( str(ThumbnailFormat("webp", 150, 100, animated=True)), "150x100-anim.webp", ) # And they should round-trip into BaseThumbnailFormat, losing the opts= which we do not serialize thumb_format = ThumbnailFormat("webp", 150, 100, animated=True, opts="Q=90") self.assertEqual(thumb_format.extension, "webp") self.assertEqual(thumb_format.max_width, 150) self.assertEqual(thumb_format.max_height, 100) self.assertEqual(thumb_format.animated, True) round_trip = BaseThumbnailFormat.from_string(str(thumb_format)) assert round_trip is not None self.assertEqual(thumb_format, round_trip) self.assertEqual(round_trip.extension, "webp") self.assertEqual(round_trip.max_width, 150) self.assertEqual(round_trip.max_height, 100) self.assertEqual(round_trip.animated, True) self.assertIsNone(BaseThumbnailFormat.from_string("bad.webp")) class TestStoreThumbnail(ZulipTestCase): def test_upload_image(self) -> None: assert settings.LOCAL_FILES_DIR self.login_user(self.example_user("hamlet")) with ( self.thumbnail_formats(ThumbnailFormat("webp", 100, 75, animated=True)), self.captureOnCommitCallbacks(execute=True), ): with get_test_image_file("animated_unequal_img.gif") as image_file: response = self.assert_json_success( self.client_post("/json/user_uploads", {"file": image_file}) ) path_id = re.sub(r"/user_uploads/", "", response["url"]) self.assertEqual(Attachment.objects.filter(path_id=path_id).count(), 1) image_attachment = ImageAttachment.objects.get(path_id=path_id) self.assertEqual(image_attachment.original_height_px, 56) self.assertEqual(image_attachment.original_width_px, 128) self.assertEqual(image_attachment.frames, 3) self.assertEqual(image_attachment.thumbnail_metadata, []) self.assertEqual( [r[0] for r in all_message_attachments(include_thumbnails=True)], [path_id], ) # The worker triggers when we exit this block and call the pending callbacks image_attachment = ImageAttachment.objects.get(path_id=path_id) self.assert_length(image_attachment.thumbnail_metadata, 1) generated_thumbnail = StoredThumbnailFormat(**image_attachment.thumbnail_metadata[0]) self.assertEqual(str(generated_thumbnail), "100x75-anim.webp") self.assertEqual(generated_thumbnail.animated, True) self.assertEqual(generated_thumbnail.width, 100) self.assertEqual(generated_thumbnail.height, 44) self.assertEqual(generated_thumbnail.content_type, "image/webp") self.assertGreater(generated_thumbnail.byte_size, 200) self.assertLess(generated_thumbnail.byte_size, 2 * 1024) self.assertEqual( get_image_thumbnail_path(image_attachment, generated_thumbnail), f"thumbnail/{path_id}/100x75-anim.webp", ) parsed_path = split_thumbnail_path(f"thumbnail/{path_id}/100x75-anim.webp") self.assertEqual(parsed_path[0], path_id) self.assertIsInstance(parsed_path[1], BaseThumbnailFormat) self.assertEqual(str(parsed_path[1]), str(generated_thumbnail)) self.assertEqual( sorted([r[0] for r in all_message_attachments(include_thumbnails=True)]), sorted([path_id, f"thumbnail/{path_id}/100x75-anim.webp"]), ) with BytesIO() as fh: save_attachment_contents(f"thumbnail/{path_id}/100x75-anim.webp", fh) thumbnailed_bytes = fh.getvalue() with pyvips.Image.new_from_buffer(thumbnailed_bytes, "") as thumbnailed_image: self.assertEqual(thumbnailed_image.get("vips-loader"), "webpload_buffer") self.assertEqual(thumbnailed_image.width, 100) self.assertEqual(thumbnailed_image.height, 44) self.assertEqual(thumbnailed_image.get_n_pages(), 2) with self.thumbnail_formats(ThumbnailFormat("webp", 100, 75, animated=True)): self.assertEqual(ensure_thumbnails(image_attachment), 0) with self.thumbnail_formats(ThumbnailFormat("webp", 150, 100, opts="Q=90", animated=False)): self.assertEqual(ensure_thumbnails(image_attachment), 1) self.assert_length(image_attachment.thumbnail_metadata, 2) bigger_thumbnail = StoredThumbnailFormat(**image_attachment.thumbnail_metadata[1]) self.assertEqual(str(bigger_thumbnail), "150x100.webp") self.assertEqual(bigger_thumbnail.animated, False) # We don't scale up, so these are the original dimensions self.assertEqual(bigger_thumbnail.width, 128) self.assertEqual(bigger_thumbnail.height, 56) self.assertEqual(bigger_thumbnail.content_type, "image/webp") self.assertGreater(bigger_thumbnail.byte_size, 200) self.assertLess(bigger_thumbnail.byte_size, 2 * 1024) with BytesIO() as fh: save_attachment_contents(f"thumbnail/{path_id}/150x100.webp", fh) thumbnailed_bytes = fh.getvalue() with pyvips.Image.new_from_buffer(thumbnailed_bytes, "") as thumbnailed_image: self.assertEqual(thumbnailed_image.get("vips-loader"), "webpload_buffer") self.assertEqual(thumbnailed_image.width, 128) self.assertEqual(thumbnailed_image.height, 56) self.assertEqual(thumbnailed_image.get_n_pages(), 1) self.assertEqual( sorted([r[0] for r in all_message_attachments(include_thumbnails=True)]), sorted( [ path_id, f"thumbnail/{path_id}/100x75-anim.webp", f"thumbnail/{path_id}/150x100.webp", ] ), ) def test_image_orientation(self) -> None: self.login_user(self.example_user("hamlet")) with ( self.thumbnail_formats(ThumbnailFormat("webp", 100, 75, animated=False)), self.captureOnCommitCallbacks(execute=True), ): with get_test_image_file("orientation.jpg") as image_file: response = self.assert_json_success( self.client_post("/json/user_uploads", {"file": image_file}) ) path_id = re.sub(r"/user_uploads/", "", response["url"]) self.assertEqual(Attachment.objects.filter(path_id=path_id).count(), 1) image_attachment = ImageAttachment.objects.get(path_id=path_id) # The bytes in this image are 100 wide, and 600 tall -- # however, it has EXIF orientation information which says # to rotate it 270 degrees counter-clockwise. self.assertEqual(image_attachment.original_height_px, 100) self.assertEqual(image_attachment.original_width_px, 600) # The worker triggers when we exit this block and call the pending callbacks image_attachment = ImageAttachment.objects.get(path_id=path_id) self.assert_length(image_attachment.thumbnail_metadata, 1) generated_thumbnail = StoredThumbnailFormat(**image_attachment.thumbnail_metadata[0]) # The uploaded original content is technically "tall", not "wide", with a 270 CCW rotation set. with BytesIO() as fh: save_attachment_contents(path_id, fh) thumbnailed_bytes = fh.getvalue() with pyvips.Image.new_from_buffer(thumbnailed_bytes, "") as thumbnailed_image: self.assertEqual(thumbnailed_image.get("vips-loader"), "jpegload_buffer") self.assertEqual(thumbnailed_image.width, 100) self.assertEqual(thumbnailed_image.height, 600) self.assertEqual(thumbnailed_image.get("orientation"), 8) # 270 CCW rotation # The generated thumbnail should be wide, not tall, with the default orientation self.assertEqual(str(generated_thumbnail), "100x75.webp") self.assertEqual(generated_thumbnail.width, 100) self.assertEqual(generated_thumbnail.height, 17) with BytesIO() as fh: save_attachment_contents(f"thumbnail/{path_id}/100x75.webp", fh) thumbnailed_bytes = fh.getvalue() with pyvips.Image.new_from_buffer(thumbnailed_bytes, "") as thumbnailed_image: self.assertEqual(thumbnailed_image.get("vips-loader"), "webpload_buffer") self.assertEqual(thumbnailed_image.width, 100) self.assertEqual(thumbnailed_image.height, 17) self.assertEqual(thumbnailed_image.get("orientation"), 1) def test_big_upload(self) -> None: # We decline to treat as an image a large single-frame image self.login_user(self.example_user("hamlet")) with get_test_image_file("img.gif") as image_file: with patch.object(pyvips.Image, "new_from_buffer") as mock_from_buffer: mock_from_buffer.return_value.width = 1000000 mock_from_buffer.return_value.height = 1000000 mock_from_buffer.return_value.get_n_pages.return_value = 1 response = self.assert_json_success( self.client_post("/json/user_uploads", {"file": image_file}) ) path_id = re.sub(r"/user_uploads/", "", response["url"]) self.assertTrue(Attachment.objects.filter(path_id=path_id).exists()) self.assertFalse(ImageAttachment.objects.filter(path_id=path_id).exists()) def test_big_animated_upload(self) -> None: # We also decline to process a small but many-frame image self.login_user(self.example_user("hamlet")) with get_test_image_file("img.gif") as image_file: with patch.object(pyvips.Image, "new_from_buffer") as mock_from_buffer: mock_from_buffer.return_value.width = 100 mock_from_buffer.return_value.height = 100 mock_from_buffer.return_value.get_n_pages.return_value = 1000000 response = self.assert_json_success( self.client_post("/json/user_uploads", {"file": image_file}) ) path_id = re.sub(r"/user_uploads/", "", response["url"]) self.assertTrue(Attachment.objects.filter(path_id=path_id).exists()) self.assertFalse(ImageAttachment.objects.filter(path_id=path_id).exists()) def test_bad_upload(self) -> None: assert settings.LOCAL_FILES_DIR hamlet = self.example_user("hamlet") self.login_user(hamlet) with self.captureOnCommitCallbacks(execute=True): with get_test_image_file("truncated.gif") as image_file: response = self.assert_json_success( self.client_post("/json/user_uploads", {"file": image_file}) ) path_id = re.sub(r"/user_uploads/", "", response["url"]) self.assertEqual(Attachment.objects.filter(path_id=path_id).count(), 1) # This doesn't generate an ImageAttachment row because it's corrupted self.assertEqual(ImageAttachment.objects.filter(path_id=path_id).count(), 0) # Fake making one, based on if just part of the file is readable image_attachment = ImageAttachment.objects.create( realm_id=hamlet.realm_id, path_id=path_id, original_height_px=128, original_width_px=128, frames=1, thumbnail_metadata=[], ) with self.thumbnail_formats(ThumbnailFormat("webp", 100, 75, animated=False)): self.assert_length(missing_thumbnails(image_attachment), 1) with self.assertLogs("zerver.worker.thumbnail", level="ERROR") as error_log: self.assertEqual(ensure_thumbnails(image_attachment), 0) libvips_version = (pyvips.version(0), pyvips.version(1)) # This error message changed if libvips_version < (8, 13): # nocoverage # branch varies with version expected_message = "gifload_buffer: Insufficient data to do anything" else: # nocoverage # branch varies with version expected_message = "gifload_buffer: no frames in GIF" self.assertTrue(expected_message in error_log.output[0]) # It should have now been removed self.assertEqual(ImageAttachment.objects.filter(path_id=path_id).count(), 0) def test_missing_thumbnails(self) -> None: image_attachment = ImageAttachment( path_id="example", original_width_px=150, original_height_px=100, frames=1, thumbnail_metadata=[], ) with self.thumbnail_formats(): self.assertEqual(missing_thumbnails(image_attachment), []) still_webp = ThumbnailFormat("webp", 100, 75, animated=False, opts="Q=90") with self.thumbnail_formats(still_webp): self.assertEqual(missing_thumbnails(image_attachment), [still_webp]) anim_webp = ThumbnailFormat("webp", 100, 75, animated=True, opts="Q=90") with self.thumbnail_formats(still_webp, anim_webp): # It's not animated, so the animated format doesn't appear at all self.assertEqual(missing_thumbnails(image_attachment), [still_webp]) still_jpeg = ThumbnailFormat("jpeg", 100, 75, animated=False, opts="Q=90") with self.thumbnail_formats(still_webp, anim_webp, still_jpeg): # But other still formats do self.assertEqual(missing_thumbnails(image_attachment), [still_webp, still_jpeg]) # If we have a rendered 150x100.webp, then we're not missing it rendered_still_webp = StoredThumbnailFormat( "webp", 100, 75, animated=False, width=150, height=50, content_type="image/webp", byte_size=1234, ) image_attachment.thumbnail_metadata = [asdict(rendered_still_webp)] with self.thumbnail_formats(still_webp, anim_webp, still_jpeg): self.assertEqual(missing_thumbnails(image_attachment), [still_jpeg]) # If we have the still, and it's animated, we do still need the animated image_attachment.frames = 10 with self.thumbnail_formats(still_webp, anim_webp, still_jpeg): self.assertEqual(missing_thumbnails(image_attachment), [anim_webp, still_jpeg]) class TestThumbnailRetrieval(ZulipTestCase): def test_get_thumbnail(self) -> None: assert settings.LOCAL_FILES_DIR hamlet = self.example_user("hamlet") self.login_user(hamlet) webp_anim = ThumbnailFormat("webp", 100, 75, animated=True) webp_still = ThumbnailFormat("webp", 100, 75, animated=False) with self.thumbnail_formats(webp_anim, webp_still): with ( self.captureOnCommitCallbacks(execute=True), get_test_image_file("animated_unequal_img.gif") as image_file, ): json_response = self.assert_json_success( self.client_post("/json/user_uploads", {"file": image_file}) ) path_id = re.sub(r"/user_uploads/", "", json_response["url"]) # Image itself is available immediately response = self.client_get(f"/user_uploads/{path_id}") self.assertEqual(response.status_code, 200) self.assertEqual(response.headers["Content-Type"], "image/gif") consume_response(response) # Format we don't have response = self.client_get(f"/user_uploads/thumbnail/{path_id}/1x1.png") self.assertEqual(response.status_code, 404) self.assertEqual(response.headers["Content-Type"], "image/png") consume_response(response) # Exit the block, triggering the thumbnailing worker thumbnail_response = self.client_get( f"/user_uploads/thumbnail/{path_id}/{webp_still!s}" ) self.assertEqual(thumbnail_response.status_code, 200) self.assertEqual(thumbnail_response.headers["Content-Type"], "image/webp") self.assertLess( int(thumbnail_response.headers["Content-Length"]), int(response.headers["Content-Length"]), ) consume_response(thumbnail_response) animated_response = self.client_get(f"/user_uploads/thumbnail/{path_id}/{webp_anim!s}") self.assertEqual(animated_response.status_code, 200) self.assertEqual(animated_response.headers["Content-Type"], "image/webp") self.assertLess( int(thumbnail_response.headers["Content-Length"]), int(animated_response.headers["Content-Length"]), ) consume_response(animated_response) # Invalid thumbnail format response = self.client_get(f"/user_uploads/thumbnail/{path_id}/bogus") self.assertEqual(response.status_code, 404) self.assertEqual(response.headers["Content-Type"], "image/png") consume_response(response) # path_id for a non-image with ( self.captureOnCommitCallbacks(execute=True), get_test_image_file("text.txt") as text_file, ): json_response = self.assert_json_success( self.client_post("/json/user_uploads", {"file": text_file}) ) text_path_id = re.sub(r"/user_uploads/", "", json_response["url"]) response = self.client_get(f"/user_uploads/thumbnail/{text_path_id}/{webp_still!s}") self.assertEqual(response.status_code, 404) self.assertEqual(response.headers["Content-Type"], "image/png") consume_response(response) # Shrink the list of formats, and check that we can still get # the thumbnails that were generated at the time with self.thumbnail_formats(webp_still): response = self.client_get(f"/user_uploads/thumbnail/{path_id}/{webp_still!s}") self.assertEqual(response.status_code, 200) consume_response(response) response = self.client_get(f"/user_uploads/thumbnail/{path_id}/{webp_anim!s}") self.assertEqual(response.status_code, 200) consume_response(response) # Grow the format list, and check that fetching that new # format generates all of the missing formats jpeg_still = ThumbnailFormat("jpg", 100, 75, animated=False) big_jpeg_still = ThumbnailFormat("jpg", 200, 150, animated=False) with ( self.thumbnail_formats(webp_still, jpeg_still, big_jpeg_still), patch.object( pyvips.Image, "thumbnail_buffer", wraps=pyvips.Image.thumbnail_buffer ) as thumb_mock, ): small_response = self.client_get(f"/user_uploads/thumbnail/{path_id}/{jpeg_still!s}") self.assertEqual(small_response.status_code, 200) self.assertEqual(small_response.headers["Content-Type"], "image/jpeg") consume_response(small_response) # This made two thumbnails self.assertEqual(thumb_mock.call_count, 2) thumb_mock.reset_mock() big_response = self.client_get(f"/user_uploads/thumbnail/{path_id}/{big_jpeg_still!s}") self.assertEqual(big_response.status_code, 200) self.assertEqual(big_response.headers["Content-Type"], "image/jpeg") consume_response(big_response) thumb_mock.assert_not_called() self.assertLess( int(small_response.headers["Content-Length"]), int(big_response.headers["Content-Length"]), ) # Upload a static image, and verify that we only generate the still versions with self.thumbnail_formats(webp_anim, webp_still, jpeg_still): with ( self.captureOnCommitCallbacks(execute=True), get_test_image_file("img.tif") as image_file, ): json_response = self.assert_json_success( self.client_post("/json/user_uploads", {"file": image_file}) ) path_id = re.sub(r"/user_uploads/", "", json_response["url"]) # Exit the block, triggering the thumbnailing worker still_response = self.client_get(f"/user_uploads/thumbnail/{path_id}/{webp_still!s}") self.assertEqual(still_response.status_code, 200) self.assertEqual(still_response.headers["Content-Type"], "image/webp") consume_response(still_response) # We can request -anim -- we didn't render it, but we the # "closest we rendered" logic kicks in, and we get the # still webp, rather than a 404 animated_response = self.client_get(f"/user_uploads/thumbnail/{path_id}/{webp_anim!s}") self.assertEqual(animated_response.status_code, 200) self.assertEqual(animated_response.headers["Content-Type"], "image/webp") consume_response(animated_response) # Double-check that we don't actually have the animated version, by comparing file sizes self.assertEqual( animated_response.headers["Content-Length"], still_response.headers["Content-Length"], ) response = self.client_get(f"/user_uploads/thumbnail/{path_id}/{jpeg_still!s}") self.assertEqual(response.status_code, 200) self.assertEqual(response.headers["Content-Type"], "image/jpeg") consume_response(response) def test_closest_format(self) -> None: self.login_user(self.example_user("hamlet")) webp_anim = ThumbnailFormat("webp", 100, 75, animated=True) webp_still = ThumbnailFormat("webp", 100, 75, animated=False) tiny_webp_still = ThumbnailFormat("webp", 10, 10, animated=False) gif_still = ThumbnailFormat("gif", 100, 75, animated=False) with ( self.thumbnail_formats(webp_anim, webp_still, tiny_webp_still, gif_still), self.captureOnCommitCallbacks(execute=True), get_test_image_file("animated_img.gif") as image_file, ): json_response = self.assert_json_success( self.client_post("/json/user_uploads", {"file": image_file}) ) path_id = re.sub(r"/user_uploads/", "", json_response["url"]) # Exit the block, triggering the thumbnailing worker image_attachment = ImageAttachment.objects.get(path_id=path_id) rendered_formats = [ StoredThumbnailFormat(**data) for data in image_attachment.thumbnail_metadata ] accepts = [MediaType("image/webp"), MediaType("image/*"), MediaType("*/*;q=0.8")] # Prefer to match -animated, even though we have a .gif self.assertEqual( str( closest_thumbnail_format( ThumbnailFormat("gif", 100, 75, animated=True), accepts, rendered_formats ) ), "100x75-anim.webp", ) # Match the extension, even if we're an exact match for a different size self.assertEqual( str( closest_thumbnail_format( ThumbnailFormat("gif", 10, 10, animated=False), accepts, rendered_formats ) ), "100x75.gif", ) # If they request an extension we don't do, then we look for the formats they prefer self.assertEqual( str( closest_thumbnail_format( ThumbnailFormat("tif", 10, 10, animated=False), accepts, rendered_formats ) ), "10x10.webp", ) self.assertEqual( str( closest_thumbnail_format( ThumbnailFormat("tif", 10, 10, animated=False), [MediaType("image/webp;q=0.9"), MediaType("image/gif")], rendered_formats, ) ), "100x75.gif", ) self.assertEqual( str( closest_thumbnail_format( ThumbnailFormat("tif", 10, 10, animated=False), [MediaType("image/gif")], rendered_formats, ) ), "100x75.gif", ) # Closest width self.assertEqual( str( closest_thumbnail_format( ThumbnailFormat("webp", 20, 100, animated=False), accepts, rendered_formats ) ), "10x10.webp", ) self.assertEqual( str( closest_thumbnail_format( ThumbnailFormat("webp", 80, 10, animated=False), accepts, rendered_formats ) ), "100x75.webp", ) # Smallest filesize if they have no media preference self.assertEqual( str( closest_thumbnail_format( ThumbnailFormat("tif", 100, 75, animated=False), [MediaType("image/gif"), MediaType("image/webp")], rendered_formats, ) ), "100x75.webp", )