From 97a0680bd04dc9ae4eaa5d877e3517c442d2678a Mon Sep 17 00:00:00 2001
From: imabritishcow <bcow@protonmail.com>
Date: Sun, 9 May 2021 01:22:26 +0000
Subject: [PATCH] Support GIFs in comments (#217)

* Support GIFs in comments

* Fix removing Giphy links so it only removes Giphy links

* Remove removing link to Giphy
---
 src/utils.rs | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/utils.rs b/src/utils.rs
index ccf062f..dc9555b 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -445,9 +445,21 @@ pub fn format_url(url: &str) -> String {
 }
 
 // Rewrite Reddit links to Libreddit in body of text
-pub fn rewrite_urls(text: &str) -> String {
-	match Regex::new(r#"href="(https|http|)://(www.|old.|np.|amp.|)(reddit).(com)/"#) {
-		Ok(re) => re.replace_all(text, r#"href="/"#).to_string(),
+pub fn rewrite_urls(input_text: &str) -> String {
+	let text1 = match Regex::new(r#"href="(https|http|)://(www.|old.|np.|amp.|)(reddit).(com)/"#) {
+		Ok(re) => re.replace_all(input_text, r#"href="/"#).to_string(),
+		Err(_) => String::new(),
+	};
+
+	// Rewrite external media previews to Libreddit
+	match Regex::new(r"https://external-preview\.redd\.it(.*)[^?]") {
+		Ok(re) => {
+			if re.is_match(&text1) {
+				re.replace_all(&text1, format_url(re.find(&text1).unwrap().as_str())).to_string()
+			} else {
+				text1
+			}
+		},
 		Err(_) => String::new(),
 	}
 }