// ==UserScript==
// @name        FeatureFM Remove Tracking
// @description Removes trackers from FeatureFM (ffm.to) platform links
// @namespace   https://github.com/JunkiEDM
// @author      JunkiEDM
// @version     1.0
// @match       https://*.ffm.to/*
// @grant       none
// @license     GPLv3
// ==/UserScript==
document.querySelectorAll('a[href^="https://api.ffm.to"]').forEach((elm) => {
let url = new URL(elm.href);
if (url.searchParams.has('cd')) {
let data = url.searchParams.get('cd').replaceAll('_','/').replaceAll('-','+');
data = atob(data);
data = JSON.parse(data);
let destUrl = new URL(data.destUrl);
if (destUrl.hostname == 'ffm.prf.hn') {
let pathname = destUrl.pathname.split('/').splice(1);
if (pathname[0] == 'click') {
pathname.splice(1).forEach((opt) => {
opt = opt.split(':');
if (opt.length > 1 && opt[0] == 'destination') {
destUrl = new URL(decodeURIComponent(opt[1]));
}
})
}
} else if (destUrl.hostname.includes('app.link')) {
if (destUrl.searchParams.has('$desktop_url')) {
destUrl = new URL(destUrl.searchParams.get('$desktop_url'));
}
}
let trackingParams = ['ref','tag','ct','at','ls']
trackingParams.forEach((p)=>{
if (destUrl.searchParams.has(p)) {
destUrl.searchParams.delete(p)
}
})
elm.href = destUrl.href;
}
})