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zulip/web/tests/postprocess_content.test.cjs

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JavaScript
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"use strict";
const assert = require("node:assert/strict");
const {mock_esm, zrequire} = require("./lib/namespace.cjs");
const {run_test} = require("./lib/test.cjs");
const thumbnail = mock_esm("../src/thumbnail");
const {postprocess_content} = zrequire("postprocess_content");
const {initialize_user_settings} = zrequire("user_settings");
const user_settings = {web_font_size_px: 16};
initialize_user_settings({user_settings});
run_test("postprocess_content", () => {
assert.equal(
postprocess_content(
'<a href="http://example.com">good</a> ' +
'<a href="http://zulip.zulipdev.com/user_uploads/w/ha/tever/file.png">upload</a> ' +
'<a href="http://localhost:NNNN">invalid</a> ' +
'<a href="javascript:alert(1)">unsafe</a> ' +
'<a href="/#fragment" target="_blank">fragment</a>' +
'<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="message_inline_image message_inline_video">' +
'<a href="http://zulip.zulipdev.com/user_uploads/w/ha/tever/inline.mp4">' +
'<video src="http://zulip.zulipdev.com/user_uploads/w/ha/tever/inline.mp4"></video>' +
"</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>" +
'<div class="message_embed">' +
'<a class="message_embed_image" href="https://example.com/about" style="background-image: url(&quot;https://example.com/preview.jpeg&quot;)"></a>' +
'<div class="data-container">' +
'<div class="message_embed_title">' +
'<a href="https://example.com/about">About us</a>' +
"</div>" +
'<div class="message_embed_description">All about us.</div>' +
"</div>" +
"</div>",
),
'<a href="http://example.com" target="_blank" rel="noopener noreferrer" title="http://example.com/">good</a> ' +
'<a href="http://zulip.zulipdev.com/user_uploads/w/ha/tever/file.png" target="_blank" rel="noopener noreferrer" title="translated: Download file.png">upload</a> ' +
"<a>invalid</a> " +
"<a>unsafe</a> " +
'<a href="/#fragment" title="http://zulip.zulipdev.com/#fragment">fragment</a>' +
'<div class="message-thumbnail-gallery">' +
'<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="message_inline_image message_inline_video">' +
'<a href="http://zulip.zulipdev.com/user_uploads/w/ha/tever/inline.mp4" target="_blank" rel="noopener noreferrer" class="media-anchor-element">' +
'<video src="http://zulip.zulipdev.com/user_uploads/w/ha/tever/inline.mp4" class="media-video-element media-image-element"></video>' +
"</a>" +
"</div>" +
'<div class="youtube-video message_inline_image">' +
'<a class="media-anchor-element" href="https://www.youtube.com/watch?v=tyKJueEk0XM" target="_blank" rel="noopener noreferrer">' +
'<img src="https://i.ytimg.com/vi/tyKJueEk0XM/mqdefault.jpg" class="media-image-element" loading="lazy">' +
"</a>" +
"</div>" +
"</div>" +
'<div class="message_embed">' +
'<a class="message_embed_image" href="https://example.com/about" style="background-image: url(&quot;https://example.com/preview.jpeg&quot;)" target="_blank" rel="noopener noreferrer" title="https://example.com/about"></a>' +
'<div class="data-container">' +
'<div class="message_embed_title">' +
'<a href="https://example.com/about" target="_blank" rel="noopener noreferrer" class="message-embed-title-link" title="https://example.com/about">About us</a>' +
"</div>" +
'<div class="message_embed_description">All about us.</div>' +
"</div>" +
"</div>",
);
});
run_test("ordered_lists", () => {
assert.equal(
postprocess_content('<ol start="9"><li>Nine</li><li>Ten</li></ol>'),
'<ol start="9" class="counter-length-2"><li>Nine</li><li>Ten</li></ol>',
);
});
run_test("inline_image_galleries", ({override}) => {
const thumbnail_formats = [
{
name: "840x560.webp",
max_width: 840,
max_height: 560,
format: "webp",
animated: false,
},
];
override(thumbnail, "preferred_format", thumbnail_formats[0]);
assert.equal(
postprocess_content(
"<p>Message text</p>" +
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" title="image.png">' +
'<img data-original-dimensions="1000x2000" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp">' +
"</a>" +
"</div>" +
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" title="image.png">' +
'<img data-original-dimensions="2000x1000" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp">' +
"</a>" +
"</div>" +
"<p>Message text</p>" +
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" title="image.png">' +
'<img data-original-dimensions="1000x1000" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp">' +
"</a>" +
"</div>",
),
"<p>Message text</p>" +
'<div class="message-thumbnail-gallery">' +
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" target="_blank" rel="noopener noreferrer" class="media-anchor-element" aria-label="image.png">' +
'<img data-original-dimensions="1000x2000" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp" class="media-image-element portrait-thumbnail" width="1000" height="2000" loading="lazy">' +
"</a>" +
"</div>" +
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" target="_blank" rel="noopener noreferrer" class="media-anchor-element" aria-label="image.png">' +
'<img data-original-dimensions="2000x1000" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp" class="media-image-element landscape-thumbnail" width="2000" height="1000" loading="lazy">' +
"</a>" +
"</div>" +
"</div>" +
"<p>Message text</p>" +
'<div class="message-thumbnail-gallery">' +
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" target="_blank" rel="noopener noreferrer" class="media-anchor-element" aria-label="image.png">' +
'<img data-original-dimensions="1000x1000" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp" class="media-image-element portrait-thumbnail" width="1000" height="1000" loading="lazy">' +
"</a>" +
"</div>" +
"</div>",
);
});
run_test("message_inline_animated_image_still", ({override}) => {
const thumbnail_formats = [
{
name: "840x560-anim.webp",
max_width: 840,
max_height: 560,
format: "webp",
animated: true,
},
{
name: "840x560.webp",
max_width: 840,
max_height: 560,
format: "webp",
animated: false,
},
{
name: "300x200-anim.webp",
max_width: 300,
max_height: 200,
format: "webp",
animated: true,
},
{
name: "300x200.webp",
max_width: 300,
max_height: 200,
format: "webp",
animated: false,
},
{
name: "300x200.jpg",
max_width: 300,
max_height: 200,
format: "jpg",
animated: false,
},
];
// TODO: Initialize the real thumbnail.ts rather than mocking it.
override(thumbnail, "preferred_format", thumbnail_formats[3]);
override(thumbnail, "animated_format", thumbnail_formats[2]);
// Test for landscape thumbnails
assert.equal(
postprocess_content(
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" title="image.png">' +
'<img data-original-dimensions="3264x2448" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp">' +
"</a>" +
"</div>",
),
'<div class="message-thumbnail-gallery">' +
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" target="_blank" rel="noopener noreferrer" class="media-anchor-element" aria-label="image.png">' +
'<img data-original-dimensions="3264x2448" src="/user_uploads/thumbnail/path/to/image.png/300x200.webp" class="media-image-element landscape-thumbnail" width="3264" height="2448" loading="lazy">' +
"</a>" +
"</div>" +
"</div>",
);
// Test for portrait thumbnails
assert.equal(
postprocess_content(
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" title="image.png">' +
'<img data-original-dimensions="100x200" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp">' +
"</a>" +
"</div>",
),
'<div class="message-thumbnail-gallery">' +
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" target="_blank" rel="noopener noreferrer" class="media-anchor-element" aria-label="image.png">' +
'<img data-original-dimensions="100x200" src="/user_uploads/thumbnail/path/to/image.png/300x200.webp" class="media-image-element portrait-thumbnail" width="100" height="200" loading="lazy">' +
"</a>" +
"</div>" +
"</div>",
);
// Test for dinky thumbnails
assert.equal(
postprocess_content(
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" title="image.png">' +
'<img data-original-dimensions="1x10" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp">' +
"</a>" +
"</div>",
),
'<div class="message-thumbnail-gallery">' +
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" target="_blank" rel="noopener noreferrer" class="media-anchor-element" aria-label="image.png">' +
'<img data-original-dimensions="1x10" src="/user_uploads/thumbnail/path/to/image.png/300x200.webp" class="media-image-element dinky-thumbnail extreme-aspect-ratio portrait-thumbnail" width="1" height="10" loading="lazy">' +
"</a>" +
"</div>" +
"</div>",
);
// Now verify the behavior for animated images.
override(user_settings, "web_animate_image_previews", "always");
assert.equal(
postprocess_content(
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" title="image.png">' +
'<img data-original-dimensions="3264x2448" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp" data-animated="true">' +
"</a>" +
"</div>",
),
'<div class="message-thumbnail-gallery">' +
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" target="_blank" rel="noopener noreferrer" class="media-anchor-element" aria-label="image.png">' +
'<img data-original-dimensions="3264x2448" src="/user_uploads/thumbnail/path/to/image.png/300x200-anim.webp" data-animated="true" class="media-image-element landscape-thumbnail" width="3264" height="2448" loading="lazy">' +
"</a>" +
"</div>" +
"</div>",
);
// And verify the different behavior for other values of the animation setting.
override(user_settings, "web_animate_image_previews", "on_hover");
assert.equal(
postprocess_content(
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" title="image.png">' +
'<img data-original-dimensions="3264x2448" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp" data-animated="true">' +
"</a>" +
"</div>",
),
'<div class="message-thumbnail-gallery">' +
'<div class="message_inline_image message_inline_animated_image_still">' +
'<a href="/user_uploads/path/to/image.png" target="_blank" rel="noopener noreferrer" class="media-anchor-element" aria-label="image.png">' +
'<img data-original-dimensions="3264x2448" src="/user_uploads/thumbnail/path/to/image.png/300x200.webp" data-animated="true" class="media-image-element landscape-thumbnail" width="3264" height="2448" loading="lazy">' +
"</a>" +
"</div>" +
"</div>",
);
override(user_settings, "web_animate_image_previews", "never");
assert.equal(
postprocess_content(
'<div class="message_inline_image">' +
'<a href="/user_uploads/path/to/image.png" title="image.png">' +
'<img data-original-dimensions="3264x2448" src="/user_uploads/thumbnail/path/to/image.png/840x560.webp" data-animated="true">' +
"</a>" +
"</div>",
),
'<div class="message-thumbnail-gallery">' +
'<div class="message_inline_image message_inline_animated_image_still">' +
'<a href="/user_uploads/path/to/image.png" target="_blank" rel="noopener noreferrer" class="media-anchor-element" aria-label="image.png">' +
'<img data-original-dimensions="3264x2448" src="/user_uploads/thumbnail/path/to/image.png/300x200.webp" data-animated="true" class="media-image-element landscape-thumbnail" width="3264" height="2448" loading="lazy">' +
"</a>" +
"</div>" +
"</div>",
);
// Broken/invalid source URLs in image previews should be
// dropped. Inspired by a real message found in chat.zulip.org
// history.
assert.equal(
postprocess_content(
'<div class="message_inline_image">' +
'<a href="https://zulip.%20[Click%20to%20join%20video%20call](https://meeting.example.com/abcd1234)%20example.com/user_uploads/2/ab/abcd1234/image.png" target="_blank" title="image.png">' +
'<img src="https://zulip.%20[Click%20to%20join%20video%20call](https://meeting.example.com/abcd1234)%20example.com/user_uploads/2/ab/abcd1234/image.png">' +
"</a>" +
"</div>",
),
"",
);
});
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