Update fjyt.user.js (#2)

Add metadata blocks.
Add strict check to avoid phony URLs.
Make if statement less cluttered.

fjyt.user.js

@@ -1,33 +1,53 @@
 // ==UserScript==
-// @name         Firejail :: YT Handler
-// @description  Relay Youtube URL's to external firejailed media player.
-// @include      *
-// @grant        none
+// @name        Firejail :: YT Handler
+// @description Relay YouTube links to an external firejailed media player
+// @author      glitsj16
+// @copyright   2023, glitsj16
+// @namespace   com.github.glitsj16.firejail-handler-extra
+// @homepageURL https://github.com/glitsj16/firejail-handler-extra
+// @supportURL  https://github.com/glitsj16/firejail-handler-extra/issues
+// @updateURL   https://github.com/glitsj16/firejail-handler-extra/raw/master/fjyt.meta.js
+// @include     *
+// @grant       none
+// @license     GPL-2.0-only; https://opensource.org/license/gpl-2-0/
+// @icon        data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAxMDAgMTAwIj48dGV4dCB5PSIuOWVtIiBmb250LXNpemU9IjkwIj7wn5SlPC90ZXh0Pjwvc3ZnPgo=
 // ==/UserScript==
 
+/*
+
+This userscript converts
+video links as follows:
+
+Before
+https://youtu.be/zrJ2D-dAv5s
+
+After
+fjyt://youtu.be/zrJ2D-dAv5s
+
+*/
+
 const keywords = [
-  '.youtube.com',
-  '.youtu.be']
+  'www.youtube.com',
+  'www.youtu.be',
+  'youtube.com',
+  'youtu.be']
 
 for (let i = 0; i < keywords.length; i++) {
-  // TODO regex
   for (const elem of document.querySelectorAll('a[href*="' + keywords[i] + '"]')) {
     url = new URL(elem.href);
-    if (url.origin.endsWith('.com')) {
-      //elem.href = 'fjyt://' + elem.href
-      elem.href = fjURL(url);
-    } else {
-      // TODO regex
-      if (url.pathname.includes('embed') ||
-          url.pathname.includes('watch')) {
-        //elem.href = 'fjyt://' + elem.href
+    if (url.host.match(keywords[i])) {
+      // TODO use regex merge startsWith of watch and embed
+      if (url.pathname.startsWith('/watch') ||
+          url.pathname.startsWith('/embed') ||
+          url.origin.endsWith('.be'))
+      {
         elem.href = fjURL(url);
       }
     }
   }
 }
 
-// Turn YT links into custom fjyt protocol URL's
+// Turn link into fjyt URL
 function fjURL(url) {
   url.protocol = 'fjyt:';
   url.toString();