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youtube: Request medium-quality preview images.

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This commit is contained in:
Karl Stolley
2025-03-05 13:14:50 -06:00
committed by Tim Abbott
parent 0ce3bbd09d
commit 80dcd53b59
6 changed files with 37 additions and 12 deletions
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14
web/src/postprocess_content.ts
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@@ -1,3 +1,5 @@
import assert from "minimalistic-assert";
import {$t} from "./i18n.ts";
import * as thumbnail from "./thumbnail.ts";
import {user_settings} from "./user_settings.ts";
@@ -52,6 +54,18 @@ export function postprocess_content(html: string): string {
elt.removeAttribute("target");
}
// Update older, smaller default.jpg YouTube preview images
// with higher-quality preview images (320px wide)
if (elt.parentElement?.classList.contains("youtube-video")) {
const img = elt.querySelector("img");
assert(img instanceof HTMLImageElement);
const img_src = img.src;
if (img_src.endsWith("/default.jpg")) {
const mq_src = img_src.replace(/\/default.jpg$/, "/mqdefault.jpg");
img.src = mq_src;
}
}
if (elt.parentElement?.classList.contains("message_inline_image")) {
// For inline images we want to handle the tooltips explicitly, and disable
// the browser's built in handling of the title attribute.

1
web/tests/lib/index.cjs
View File

@@ -23,6 +23,7 @@ const dom = new JSDOM("", {url: "http://zulip.zulipdev.com/"});
global.DOMParser = dom.window.DOMParser;
global.HTMLAnchorElement = dom.window.HTMLAnchorElement;
global.HTMLElement = dom.window.HTMLElement;
global.HTMLImageElement = dom.window.HTMLImageElement;
global.Window = dom.window.Window;
Object.defineProperty(global, "navigator", {
value: {

10
web/tests/postprocess_content.test.cjs
View File

@@ -24,6 +24,11 @@ run_test("postprocess_content", () => {
'<div class="message_inline_image">' +
'<a href="http://zulip.zulipdev.com/user_uploads/w/ha/tever/inline.png" title="inline image">upload</a> ' +
'<a role="button">button</a> ' +
"</div>" +
'<div class="youtube-video message_inline_image">' +
'<a class="" href="https://www.youtube.com/watch?v=tyKJueEk0XM">' +
'<img src="https://i.ytimg.com/vi/tyKJueEk0XM/default.jpg">' +
"</a>" +
"</div>",
),
'<a href="http://example.com" target="_blank" rel="noopener noreferrer" title="http://example.com/">good</a> ' +
@@ -34,6 +39,11 @@ run_test("postprocess_content", () => {
'<div class="message_inline_image">' +
'<a href="http://zulip.zulipdev.com/user_uploads/w/ha/tever/inline.png" target="_blank" rel="noopener noreferrer" aria-label="inline image">upload</a> ' +
'<a role="button">button</a> ' +
"</div>" +
'<div class="youtube-video message_inline_image">' +
'<a class="" href="https://www.youtube.com/watch?v=tyKJueEk0XM" target="_blank" rel="noopener noreferrer">' +
'<img src="https://i.ytimg.com/vi/tyKJueEk0XM/mqdefault.jpg" loading="lazy">' +
"</a>" +
"</div>",
);
});

2
zerver/lib/markdown/__init__.py
View File

@@ -879,7 +879,7 @@ class InlineInterestingLinkProcessor(markdown.treeprocessors.Treeprocessor):
yt_id = self.youtube_id(url)
if yt_id is not None:
return f"https://i.ytimg.com/vi/{yt_id}/default.jpg"
return f"https://i.ytimg.com/vi/{yt_id}/mqdefault.jpg"
return None
def vimeo_id(self, url: str) -> str | None:

4
zerver/tests/test_link_embed.py
View File

@@ -994,7 +994,7 @@ class PreviewTestCase(ZulipTestCase):
)
msg.refresh_from_db()
expected_content = f"""<p><a href="https://www.youtube.com/watch?v=eSJTXC7Ixgg">YouTube - Clearer Code at Scale - Static Types at Zulip and Dropbox</a></p>\n<div class="youtube-video message_inline_image"><a data-id="eSJTXC7Ixgg" href="https://www.youtube.com/watch?v=eSJTXC7Ixgg"><img src="{get_camo_url("https://i.ytimg.com/vi/eSJTXC7Ixgg/default.jpg")}"></a></div>"""
expected_content = f"""<p><a href="https://www.youtube.com/watch?v=eSJTXC7Ixgg">YouTube - Clearer Code at Scale - Static Types at Zulip and Dropbox</a></p>\n<div class="youtube-video message_inline_image"><a data-id="eSJTXC7Ixgg" href="https://www.youtube.com/watch?v=eSJTXC7Ixgg"><img src="{get_camo_url("https://i.ytimg.com/vi/eSJTXC7Ixgg/mqdefault.jpg")}"></a></div>"""
self.assertEqual(expected_content, msg.rendered_content)
@responses.activate
@@ -1034,5 +1034,5 @@ class PreviewTestCase(ZulipTestCase):
)
msg.refresh_from_db()
expected_content = f"""<p><a href="https://www.youtube.com/watch?v=eSJTXC7Ixgg">YouTube link</a></p>\n<div class="youtube-video message_inline_image"><a data-id="eSJTXC7Ixgg" href="https://www.youtube.com/watch?v=eSJTXC7Ixgg"><img src="{get_camo_url("https://i.ytimg.com/vi/eSJTXC7Ixgg/default.jpg")}"></a></div>"""
expected_content = f"""<p><a href="https://www.youtube.com/watch?v=eSJTXC7Ixgg">YouTube link</a></p>\n<div class="youtube-video message_inline_image"><a data-id="eSJTXC7Ixgg" href="https://www.youtube.com/watch?v=eSJTXC7Ixgg"><img src="{get_camo_url("https://i.ytimg.com/vi/eSJTXC7Ixgg/mqdefault.jpg")}"></a></div>"""
self.assertEqual(expected_content, msg.rendered_content)

18
zerver/tests/test_markdown.py
View File

@@ -735,7 +735,7 @@ class MarkdownEmbedsTest(ZulipTestCase):
self.assertEqual(
converted,
f"""<p>Check out the debate: <a href="http://www.youtube.com/watch?v=hx1mjT73xYE">http://www.youtube.com/watch?v=hx1mjT73xYE</a></p>\n<div class="youtube-video message_inline_image"><a data-id="hx1mjT73xYE" href="http://www.youtube.com/watch?v=hx1mjT73xYE"><img src="{get_camo_url("https://i.ytimg.com/vi/hx1mjT73xYE/default.jpg")}"></a></div>""",
f"""<p>Check out the debate: <a href="http://www.youtube.com/watch?v=hx1mjT73xYE">http://www.youtube.com/watch?v=hx1mjT73xYE</a></p>\n<div class="youtube-video message_inline_image"><a data-id="hx1mjT73xYE" href="http://www.youtube.com/watch?v=hx1mjT73xYE"><img src="{get_camo_url("https://i.ytimg.com/vi/hx1mjT73xYE/mqdefault.jpg")}"></a></div>""",
)
msg = "http://www.youtube.com/watch?v=hx1mjT73xYE"
@@ -743,7 +743,7 @@ class MarkdownEmbedsTest(ZulipTestCase):
self.assertEqual(
converted,
f"""<p><a href="http://www.youtube.com/watch?v=hx1mjT73xYE">http://www.youtube.com/watch?v=hx1mjT73xYE</a></p>\n<div class="youtube-video message_inline_image"><a data-id="hx1mjT73xYE" href="http://www.youtube.com/watch?v=hx1mjT73xYE"><img src="{get_camo_url("https://i.ytimg.com/vi/hx1mjT73xYE/default.jpg")}"></a></div>""",
f"""<p><a href="http://www.youtube.com/watch?v=hx1mjT73xYE">http://www.youtube.com/watch?v=hx1mjT73xYE</a></p>\n<div class="youtube-video message_inline_image"><a data-id="hx1mjT73xYE" href="http://www.youtube.com/watch?v=hx1mjT73xYE"><img src="{get_camo_url("https://i.ytimg.com/vi/hx1mjT73xYE/mqdefault.jpg")}"></a></div>""",
)
msg = "https://youtu.be/hx1mjT73xYE"
@@ -751,7 +751,7 @@ class MarkdownEmbedsTest(ZulipTestCase):
self.assertEqual(
converted,
f"""<p><a href="https://youtu.be/hx1mjT73xYE">https://youtu.be/hx1mjT73xYE</a></p>\n<div class="youtube-video message_inline_image"><a data-id="hx1mjT73xYE" href="https://youtu.be/hx1mjT73xYE"><img src="{get_camo_url("https://i.ytimg.com/vi/hx1mjT73xYE/default.jpg")}"></a></div>""",
f"""<p><a href="https://youtu.be/hx1mjT73xYE">https://youtu.be/hx1mjT73xYE</a></p>\n<div class="youtube-video message_inline_image"><a data-id="hx1mjT73xYE" href="https://youtu.be/hx1mjT73xYE"><img src="{get_camo_url("https://i.ytimg.com/vi/hx1mjT73xYE/mqdefault.jpg")}"></a></div>""",
)
msg = "https://www.youtube.com/playlist?list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo"
@@ -767,7 +767,7 @@ class MarkdownEmbedsTest(ZulipTestCase):
self.assertEqual(
converted,
f"""<p><a href="https://www.youtube.com/watch?v=O5nskjZ_GoI&amp;list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo">https://www.youtube.com/watch?v=O5nskjZ_GoI&amp;list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo</a></p>\n<div class="youtube-video message_inline_image"><a data-id="O5nskjZ_GoI" href="https://www.youtube.com/watch?v=O5nskjZ_GoI&amp;list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo"><img src="{get_camo_url("https://i.ytimg.com/vi/O5nskjZ_GoI/default.jpg")}"></a></div>""",
f"""<p><a href="https://www.youtube.com/watch?v=O5nskjZ_GoI&amp;list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo">https://www.youtube.com/watch?v=O5nskjZ_GoI&amp;list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo</a></p>\n<div class="youtube-video message_inline_image"><a data-id="O5nskjZ_GoI" href="https://www.youtube.com/watch?v=O5nskjZ_GoI&amp;list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo"><img src="{get_camo_url("https://i.ytimg.com/vi/O5nskjZ_GoI/mqdefault.jpg")}"></a></div>""",
)
msg = "http://www.youtube.com/watch_videos?video_ids=nOJgD4fcZhI,i96UO8-GFvw"
@@ -775,7 +775,7 @@ class MarkdownEmbedsTest(ZulipTestCase):
self.assertEqual(
converted,
f"""<p><a href="http://www.youtube.com/watch_videos?video_ids=nOJgD4fcZhI,i96UO8-GFvw">http://www.youtube.com/watch_videos?video_ids=nOJgD4fcZhI,i96UO8-GFvw</a></p>\n<div class="youtube-video message_inline_image"><a data-id="nOJgD4fcZhI" href="http://www.youtube.com/watch_videos?video_ids=nOJgD4fcZhI,i96UO8-GFvw"><img src="{get_camo_url("https://i.ytimg.com/vi/nOJgD4fcZhI/default.jpg")}"></a></div>""",
f"""<p><a href="http://www.youtube.com/watch_videos?video_ids=nOJgD4fcZhI,i96UO8-GFvw">http://www.youtube.com/watch_videos?video_ids=nOJgD4fcZhI,i96UO8-GFvw</a></p>\n<div class="youtube-video message_inline_image"><a data-id="nOJgD4fcZhI" href="http://www.youtube.com/watch_videos?video_ids=nOJgD4fcZhI,i96UO8-GFvw"><img src="{get_camo_url("https://i.ytimg.com/vi/nOJgD4fcZhI/mqdefault.jpg")}"></a></div>""",
)
def test_inline_image_preview(self) -> None:
@@ -1135,7 +1135,7 @@ class MarkdownEmbedsTest(ZulipTestCase):
self.assertEqual(
converted,
f"""<div class="spoiler-block"><div class="spoiler-header">\n<p>Check out this PyCon video</p>\n</div><div class="spoiler-content" aria-hidden="true">\n<p><a href="https://www.youtube.com/watch?v=0c46YHS3RY8">https://www.youtube.com/watch?v=0c46YHS3RY8</a></p>\n<div class="youtube-video message_inline_image"><a data-id="0c46YHS3RY8" href="https://www.youtube.com/watch?v=0c46YHS3RY8"><img src="{get_camo_url("https://i.ytimg.com/vi/0c46YHS3RY8/default.jpg")}"></a></div></div></div>""",
f"""<div class="spoiler-block"><div class="spoiler-header">\n<p>Check out this PyCon video</p>\n</div><div class="spoiler-content" aria-hidden="true">\n<p><a href="https://www.youtube.com/watch?v=0c46YHS3RY8">https://www.youtube.com/watch?v=0c46YHS3RY8</a></p>\n<div class="youtube-video message_inline_image"><a data-id="0c46YHS3RY8" href="https://www.youtube.com/watch?v=0c46YHS3RY8"><img src="{get_camo_url("https://i.ytimg.com/vi/0c46YHS3RY8/mqdefault.jpg")}"></a></div></div></div>""",
)
# Test YouTube URLs in normal messages.
@@ -1144,7 +1144,7 @@ class MarkdownEmbedsTest(ZulipTestCase):
self.assertEqual(
converted,
f"""<p><a href="https://www.youtube.com/watch?v=0c46YHS3RY8">YouTube link</a></p>\n<div class="youtube-video message_inline_image"><a data-id="0c46YHS3RY8" href="https://www.youtube.com/watch?v=0c46YHS3RY8"><img src="{get_camo_url("https://i.ytimg.com/vi/0c46YHS3RY8/default.jpg")}"></a></div>""",
f"""<p><a href="https://www.youtube.com/watch?v=0c46YHS3RY8">YouTube link</a></p>\n<div class="youtube-video message_inline_image"><a data-id="0c46YHS3RY8" href="https://www.youtube.com/watch?v=0c46YHS3RY8"><img src="{get_camo_url("https://i.ytimg.com/vi/0c46YHS3RY8/mqdefault.jpg")}"></a></div>""",
)
msg = "https://www.youtube.com/watch?v=0c46YHS3RY8\n\nSample text\n\nhttps://www.youtube.com/watch?v=lXFO2ULktEI"
@@ -1152,7 +1152,7 @@ class MarkdownEmbedsTest(ZulipTestCase):
self.assertEqual(
converted,
f"""<p><a href="https://www.youtube.com/watch?v=0c46YHS3RY8">https://www.youtube.com/watch?v=0c46YHS3RY8</a></p>\n<div class="youtube-video message_inline_image"><a data-id="0c46YHS3RY8" href="https://www.youtube.com/watch?v=0c46YHS3RY8"><img src="{get_camo_url("https://i.ytimg.com/vi/0c46YHS3RY8/default.jpg")}"></a></div><p>Sample text</p>\n<p><a href="https://www.youtube.com/watch?v=lXFO2ULktEI">https://www.youtube.com/watch?v=lXFO2ULktEI</a></p>\n<div class="youtube-video message_inline_image"><a data-id="lXFO2ULktEI" href="https://www.youtube.com/watch?v=lXFO2ULktEI"><img src="{get_camo_url("https://i.ytimg.com/vi/lXFO2ULktEI/default.jpg")}"></a></div>""",
f"""<p><a href="https://www.youtube.com/watch?v=0c46YHS3RY8">https://www.youtube.com/watch?v=0c46YHS3RY8</a></p>\n<div class="youtube-video message_inline_image"><a data-id="0c46YHS3RY8" href="https://www.youtube.com/watch?v=0c46YHS3RY8"><img src="{get_camo_url("https://i.ytimg.com/vi/0c46YHS3RY8/mqdefault.jpg")}"></a></div><p>Sample text</p>\n<p><a href="https://www.youtube.com/watch?v=lXFO2ULktEI">https://www.youtube.com/watch?v=lXFO2ULktEI</a></p>\n<div class="youtube-video message_inline_image"><a data-id="lXFO2ULktEI" href="https://www.youtube.com/watch?v=lXFO2ULktEI"><img src="{get_camo_url("https://i.ytimg.com/vi/lXFO2ULktEI/mqdefault.jpg")}"></a></div>""",
)
# Test order of YouTube inline previews in same paragraph.
@@ -1160,7 +1160,7 @@ class MarkdownEmbedsTest(ZulipTestCase):
converted = markdown_convert_wrapper(msg)
self.assertEqual(
converted,
f"""<p><a href="https://www.youtube.com/watch?v=0c46YHS3RY8">https://www.youtube.com/watch?v=0c46YHS3RY8</a><br>\n<a href="https://www.youtube.com/watch?v=lXFO2ULktEI">https://www.youtube.com/watch?v=lXFO2ULktEI</a></p>\n<div class="youtube-video message_inline_image"><a data-id="0c46YHS3RY8" href="https://www.youtube.com/watch?v=0c46YHS3RY8"><img src="{get_camo_url("https://i.ytimg.com/vi/0c46YHS3RY8/default.jpg")}"></a></div><div class="youtube-video message_inline_image"><a data-id="lXFO2ULktEI" href="https://www.youtube.com/watch?v=lXFO2ULktEI"><img src="{get_camo_url("https://i.ytimg.com/vi/lXFO2ULktEI/default.jpg")}"></a></div>""",
f"""<p><a href="https://www.youtube.com/watch?v=0c46YHS3RY8">https://www.youtube.com/watch?v=0c46YHS3RY8</a><br>\n<a href="https://www.youtube.com/watch?v=lXFO2ULktEI">https://www.youtube.com/watch?v=lXFO2ULktEI</a></p>\n<div class="youtube-video message_inline_image"><a data-id="0c46YHS3RY8" href="https://www.youtube.com/watch?v=0c46YHS3RY8"><img src="{get_camo_url("https://i.ytimg.com/vi/0c46YHS3RY8/mqdefault.jpg")}"></a></div><div class="youtube-video message_inline_image"><a data-id="lXFO2ULktEI" href="https://www.youtube.com/watch?v=lXFO2ULktEI"><img src="{get_camo_url("https://i.ytimg.com/vi/lXFO2ULktEI/mqdefault.jpg")}"></a></div>""",
)
def test_twitter_id_extraction(self) -> None: