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Merge pull request redlib-org#85 from ButteredCats/embed_images
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Embed Reddit preview links
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@sigaloid
sigaloid authored Apr 7, 2024
2 parents c86ca16 + 75b139d commit 7c87d63
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Showing 2 changed files with 28 additions and 2 deletions.
16 changes: 14 additions & 2 deletions src/utils.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -877,6 +877,8 @@ pub fn format_url(url: &str) -> String {
static REDDIT_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r#"href="(https|http|)://(www\.|old\.|np\.|amp\.|new\.|)(reddit\.com|redd\.it)/"#).unwrap());
static REDDIT_PREVIEW_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"https?://(external-preview|preview)\.redd\.it(.*)[^?]").unwrap());
static REDDIT_EMOJI_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"https?://(www|).redditstatic\.com/(.*)").unwrap());
static REDLIB_PREVIEW_LINK_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r#"/preview/(pre|external-pre)/(.*)">"#).unwrap());
static REDLIB_PREVIEW_TEXT_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r">(.*)</a>").unwrap());

// Rewrite Reddit links to Redlib in body of text
pub fn rewrite_urls(input_text: &str) -> String {
Expand All @@ -897,8 +899,14 @@ pub fn rewrite_urls(input_text: &str) -> String {
if REDDIT_PREVIEW_REGEX.find(&text1).is_none() {
return text1;
} else {
let formatted_url = format_url(REDDIT_PREVIEW_REGEX.find(&text1).map(|x| x.as_str()).unwrap_or_default());

let image_url = REDLIB_PREVIEW_LINK_REGEX.find(&formatted_url).map_or("", |m| m.as_str()).to_string();
let image_text = REDLIB_PREVIEW_TEXT_REGEX.find(&formatted_url).map_or("", |m| m.as_str()).to_string();

text1 = REDDIT_PREVIEW_REGEX
.replace(&text1, format_url(REDDIT_PREVIEW_REGEX.find(&text1).map(|x| x.as_str()).unwrap_or_default()))
.replace(&image_text, &format!("><img src=\"{image_url}</a>"))
.to_string()
}
}
Expand Down Expand Up @@ -1157,7 +1165,11 @@ async fn test_fetching_ws() {

#[test]
fn test_rewriting_image_links() {
let input = r#"<p><a href="https://preview.redd.it/zq21ggkj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=539d8050628ec1190cac26468fe99cc66b6071ab">https://preview.redd.it/zq21ggkj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=539d8050628ec1190cac26468fe99cc66b6071ab</a></p><p><a href="https://preview.redd.it/vty9ocij2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=fc7c7ef993a5e9ef656d5f5d9cf8290a0a1df877">https://preview.redd.it/vty9ocij2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=fc7c7ef993a5e9ef656d5f5d9cf8290a0a1df877</a></p><p><a href="https://preview.redd.it/bdfdxkjj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=d0fa420ece27605e882e89cb4711d75d774322ac">https://preview.redd.it/bdfdxkjj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=d0fa420ece27605e882e89cb4711d75d774322ac</a></p><p><a href="https://preview.redd.it/6awags382xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=9c563aed4f07a91bdd249b5a3cea43a79710dcfc">caption 1</a></p>"#;
let output = r#"<p><a href="/preview/pre/zq21ggkj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=539d8050628ec1190cac26468fe99cc66b6071ab">/preview/pre/zq21ggkj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=539d8050628ec1190cac26468fe99cc66b6071ab</a></p><p><a href="/preview/pre/vty9ocij2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=fc7c7ef993a5e9ef656d5f5d9cf8290a0a1df877">/preview/pre/vty9ocij2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=fc7c7ef993a5e9ef656d5f5d9cf8290a0a1df877</a></p><p><a href="/preview/pre/bdfdxkjj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=d0fa420ece27605e882e89cb4711d75d774322ac">/preview/pre/bdfdxkjj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=d0fa420ece27605e882e89cb4711d75d774322ac</a></p><p><a href="/preview/pre/6awags382xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=9c563aed4f07a91bdd249b5a3cea43a79710dcfc">caption 1</a></p>"#;
let input = r#"<p><a href="https://preview.redd.it/zq21ggkj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=539d8050628ec1190cac26468fe99cc66b6071ab">https://preview.redd.it/zq21ggkj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=539d8050628ec1190cac26468fe99cc66b6071ab</a></p>
<p><a href="https://preview.redd.it/vty9ocij2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=fc7c7ef993a5e9ef656d5f5d9cf8290a0a1df877">https://preview.redd.it/vty9ocij2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=fc7c7ef993a5e9ef656d5f5d9cf8290a0a1df877</a></p>
<p><a href="https://preview.redd.it/bdfdxkjj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=d0fa420ece27605e882e89cb4711d75d774322ac">https://preview.redd.it/bdfdxkjj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=d0fa420ece27605e882e89cb4711d75d774322ac</a></p>
<p><a href="https://preview.redd.it/6awags382xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=9c563aed4f07a91bdd249b5a3cea43a79710dcfc">caption 1</a></p>
<p><a href="https://preview.redd.it/rbu2ca2b2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=afb538cf784d2e339de9a91aba5dc9c92e47988f">caption 2</a></p>"#;
let output = r#"<p><a href="/preview/pre/zq21ggkj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=539d8050628ec1190cac26468fe99cc66b6071ab"><img src="/preview/pre/zq21ggkj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=539d8050628ec1190cac26468fe99cc66b6071ab"></a></p> <p><a href="/preview/pre/vty9ocij2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=fc7c7ef993a5e9ef656d5f5d9cf8290a0a1df877"><img src="/preview/pre/vty9ocij2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=fc7c7ef993a5e9ef656d5f5d9cf8290a0a1df877"></a></p> <p><a href="/preview/pre/bdfdxkjj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=d0fa420ece27605e882e89cb4711d75d774322ac"><img src="/preview/pre/bdfdxkjj2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=d0fa420ece27605e882e89cb4711d75d774322ac"></a></p> <p><a href="/preview/pre/6awags382xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=9c563aed4f07a91bdd249b5a3cea43a79710dcfc"><img src="/preview/pre/6awags382xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=9c563aed4f07a91bdd249b5a3cea43a79710dcfc"></a></p> <p><a href="/preview/pre/rbu2ca2b2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=afb538cf784d2e339de9a91aba5dc9c92e47988f"><img src="/preview/pre/rbu2ca2b2xo31.png?width=2560&amp;format=png&amp;auto=webp&amp;s=afb538cf784d2e339de9a91aba5dc9c92e47988f"></a></p>"#;
assert_eq!(rewrite_urls(input), output);
}
14 changes: 14 additions & 0 deletions static/style.css
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Original file line number Diff line number Diff line change
Expand Up @@ -1008,6 +1008,10 @@ a.search_subreddit:hover {
overflow-wrap: anywhere;
}

.post_body img {
max-width: 100%;
}

.post_poll {
grid-area: post_poll;
padding: 5px 15px 5px 12px;
Expand Down Expand Up @@ -1171,6 +1175,16 @@ a.search_subreddit:hover {
display: flex;
}

.comment img {
max-width: 50%;
}

@media screen and (max-width: 500px) {
.comment img {
max-width: 80%;
}
}

.comment_left, .comment_right {
display: flex;
flex-direction: column;
Expand Down

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