Cleans up gamer.com.tw redirect links
// ==UserScript==
// @name Clean Gamer.com.tw Forum Links
// @namespace http://tampermonkey.net/
// @version 0.2
// @description Cleans up gamer.com.tw redirect links
// @author CY Fung
// @match https://forum.gamer.com.tw/*
// @grant none
// @license MIT
// ==/UserScript==
(function () {
'use strict';
const safeHosts = [
'github.com', 'forum.gamer.com.tw', 'greasyfork.org', 'github.io',
'www.jsdelivr.com', 'jsdelivr.com', 'cdnjs.com',
'www.photopea.com', 'photopea.com', 'chat.openai.com', 'openai.com'
];
// TODO function for testing if a link is safe
function isLinkSafe(url) {
// TODO: implement the actual safety check
let uo = null;
try {
uo = new URL(url);
} catch (e) {
return false;
}
if (uo && uo.hostname) {
if (safeHosts.includes(uo.hostname)) return true;
}
return false;
}
const clickHandler = (evt) => {
evt.stopPropagation();
evt.stopImmediatePropagation();
};
function fixAnchor(decodedURL) {
for (const anchor of document.querySelectorAll(`a[href^="${decodedURL}"]`)) {
anchor.addEventListener('click', clickHandler, true);
anchor.removeAttribute('onclick');
anchor.onclick = null;
anchor.setAttribute("data-cleaned", "true");
}
}
function cleanLinks() {
const anchors = document.querySelectorAll('a[href^="https://ref.gamer.com.tw/redir.php?url=https"]:not([data-cleaned]), a[onclick]:not([data-cleaned])');
anchors.forEach(anchor => {
anchor.setAttribute("data-cleaned", "pending");
let anchorHref = anchor.getAttribute('href');
let match = anchorHref.match(/url=([^&]*)/);
match = match && match[1] ? decodeURIComponent(match[1]) : anchorHref;
if (match && match.startsWith('https://')) {
const decodedURL = match;
if (isLinkSafe(decodedURL)) {
anchor.setAttribute('href', decodedURL);
Promise.resolve(decodedURL).then(fixAnchor);
}
}
});
}
const observer = new MutationObserver(cleanLinks);
observer.observe(document.body, { childList: true, subtree: true });
// First triggering after setting up the MutationObserver
cleanLinks();
})();