From 7cf5d36e0f07a42c6bc62ecdd9f90f5914255895 Mon Sep 17 00:00:00 2001
From: Slugalisk <slugalisk@gmail.com>
Date: Sat, 2 Dec 2023 13:41:23 -0800
Subject: [PATCH] replace twitter links with nitter

---
 .env.example                 |  1 +
 assets/.eslintrc.js          |  3 ++-
 assets/chat/js/formatters.js | 12 +++++++++++-
 webpack.config.js            |  3 ++-
 4 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/.env.example b/.env.example
index bd10721b..15ffcbf6 100644
--- a/.env.example
+++ b/.env.example
@@ -1,6 +1,7 @@
 API_URI=
 LOGIN_URI=
 RUSTLA_URL=https://strims.gg
+NITTER_URL=https://nitter.strims.gg
 WEBSOCKET_URI=wss://chat.strims.gg/ws
 WEBPACK_DEVSERVER_HOST=
 WEBPACK_DEVSERVER_HTTPS=true
diff --git a/assets/.eslintrc.js b/assets/.eslintrc.js
index 6e96a5bb..56ff03c3 100644
--- a/assets/.eslintrc.js
+++ b/assets/.eslintrc.js
@@ -5,7 +5,8 @@ module.exports = {
         API_URI: false,
         LOGIN_URI: false,
         WEBSOCKET_URI: false,
-        RUSTLA_URL: false
+        RUSTLA_URL: false,
+        NITTER_URL: false
     },
     env: {
         browser: true,
diff --git a/assets/chat/js/formatters.js b/assets/chat/js/formatters.js
index 92df386f..93ec9d0b 100644
--- a/assets/chat/js/formatters.js
+++ b/assets/chat/js/formatters.js
@@ -619,7 +619,8 @@ class UrlFormatter {
             relaxed = strict + "|" + webURL;
         this.linkregex = new RegExp(relaxed, "gi");
         this.discordmp4Regex = /https:\/\/(media|cdn)\.discordapp\.(net|com)\/attachments.*?\.(mp4|webm|mov)/i;
-        this.refLinkRegex = /^(https?:\/\/)?(www\.)?(((smile\.)?amazon)|twitter|(open\.)?spotify)\.[a-z]{2,3}/
+        this.refLinkRegex = /^(https?:\/\/)?(www\.)?(((smile\.)?amazon)|twitter|(open\.)?spotify)\.[a-z]{2,3}/;
+        this.twitterRegex = /^(?:https:\/\/)?(?:www\.)?twitter\.com\/([^ ?]+)/i;
 
         // e.g. youtube ids include "-" and "_".
         const embedCommonId = '([\\w-]{1,30})';
@@ -709,6 +710,15 @@ class UrlFormatter {
             if (self.discordmp4Regex.test(decodedUrl)) {
                 decodedUrl = location.origin + "/discordmedia.html?v=" + encodeURIComponent(decodedUrl);
             }
+            const tm = decodedUrl.match(self.twitterRegex);
+            if (tm) {
+                url = self.encodeUrl(tm[0]);
+                const href = scheme + url;
+                if (tm) {
+                    const embedHref = `${NITTER_URL}/${tm[1]}`;
+                    return `<a target="_blank" class="embed-internallink ${extraclass}" href="${embedHref}">${embedHref}</a><a target="_blank" class="embed-externallink" href="${href}" rel="nofollow" title="${url}"></a>`;
+                }
+            }
             if(self.refLinkRegex.test(decodedUrl)){
                 if( decodedUrl.includes("?ref")){
                     decodedUrl = decodedUrl.split('?ref')[0];
diff --git a/webpack.config.js b/webpack.config.js
index b5d1b912..31210f83 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -205,7 +205,8 @@ const plugins = [
         WEBSOCKET_URI: process.env.WEBSOCKET_URI ? `'${process.env.WEBSOCKET_URI}'` : '"wss://chat.strims.gg/ws"',
         API_URI: process.env.API_URI ? `'${process.env.API_URI}'` : '""',
         LOGIN_URI: process.env.LOGIN_URI ? `'${process.env.LOGIN_URI}'` : 'false',
-        RUSTLA_URL: process.env.RUSTLA_URL ? `'${process.env.RUSTLA_URL}'` : '"https://strims.gg"'
+        RUSTLA_URL: process.env.RUSTLA_URL ? `'${process.env.RUSTLA_URL}'` : '"https://strims.gg"',
+        NITTER_URL: process.env.NITTER_URL ? `'${process.env.NITTER_URL}'` : '"https://nitter.net"'
     }),
     emoteManifestPlugin
 ];