Skip EliteTorrent URL redirect (https://2link.live/, https://short-info.link/, etc)

elite_torrent_url_skip.js

// Since some time ago EliteTorrent and other websites require to go through 
// an annoying process for getting the links. This JS piece allows to skip it. 
// You can automatically inject this with JSInjector or similar. 
// Feel free to adapt it.
// (URL is usually base64 encoded several times and then encrypted with the Caesar Cipher)

if (window.location.href.indexOf("https://www.elitetorrent.nz") != -1) {
    var link = document.getElementsByClassName('enlace_torrent')[0].href;
    var url_encoded = link.slice(link.indexOf('?i=') + 3);
    var url = atob(atob(atob(atob(atob(url_encoded)))));
    decrypt_url(url);
};

 function decrypt_url(original_url) {
    var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
    var shift = 13;
    var result_url = '';

    for (var i = 0; i < original_url.length; i++) {
        var character = original_url[i];
        var isLower = character != character.toUpperCase();
        var position = chars.indexOf(character.toUpperCase());
        if (position != -1) {
            var new_chars = chars.slice(position) + chars.slice(0, position);
            var character = new_chars[shift];
            if (isLower) {
                var character = character.toLowerCase();
            };
        };
        result_url += character;
    };
    alert(result_url)
};