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Link Untracker

Remove tracking elements from links

目前為 2018-01-31 提交的版本，檢視 最新版本。

// ==UserScript==
// @name        Link Untracker
// @namespace   IzzySoft
// @description Remove tracking elements from links
// @license     CC BY-NC-SA
// @include     *
// @exclude     *phpmyadmin*
// @version     7
// @grant       unsafeWindow
// ==/UserScript==

/* badp: we strip parameters starting with that. Some are taken from NetURL, see
   https://github.com/Smile4ever/firefoxaddons/tree/master/Neat%20URL-webext
   fb_: Facebook; ga_: Google; hmb_: HumbleBundle(?); utm_: Urchin Tracker; wt_: Webtrekk; WT.: Webtrends
*/
var badp = ['fb_','ga_','hmb_','utm_',
            'ei@google.','gws_rd@google.','sei@google.','ved@google.',
            'pd_rd_r@amazon.','pd_rd_w@amazon.','pd_rd_wg@amazon.','psc@amazon.',' _encoding@amazon.',
            'wt_','WT.','yclid','referrer'
           ];
var anch = '';
var replace_semicolon = true; /* some sites use ";" to separate URL params;
                                 URLSearchParams can't deal with that and messes up.
                                 If those sites don't work with "&", either set this
                                 to "false" or add that site on the exclude list
                               */

function getRealLinkFromGoogleUrl(a) { /* adapted from https://github.com/Rob--W/dont-track-me-google at 2018-01-03 */
    if ((a.hostname === location.hostname || a.hostname === 'www.google.com') &&
        /^\/(local_)?url$/.test(a.pathname)) {
        // Google Maps / Dito (/local_url?q=<url>)
        // Mobile (/url?q=<url>)
        var url = /[?&](?:q|url)=((?:https?|ftp)[%:][^&]+)/.exec(a.search);
        if (url) {
            return decodeURIComponent(url[1]);
        }
        // Help pages, e.g. safe browsing (/url?...&q=%2Fsupport%2Fanswer...)
        url = /[?&](?:q|url)=((?:%2[Ff]|\/)[^&]+)/.exec(a.search);
        if (url) {
            return a.origin + decodeURIComponent(url[1]);
        }
    }
    return a.href;
}

for(var i = 0; i < document.links.length; i++) {
  var elem = document.links[i];
  if (elem.search == '') continue;
  if (replace_semicolon) var purl = new URLSearchParams(elem.search.replace(new RegExp(';','g'),'&'));
  else var purl = new URLSearchParams(elem.search);
  var keysToDelete = [];
  for(var pair of purl) {
    for(let b of badp) {
      if (pair[0].startsWith(b)) { keysToDelete.push(pair[0]); break; }
    }
  }
  for(var key of keysToDelete) {
    purl.delete(key);
  }
/*  for (let b of badp) { purl.delete(b); }*/
  if (elem.href.indexOf('#') > 0) anch = '#' + elem.href.split('#')[1];
  else anch = '';
  elem.href = elem.href.split('?')[0] + '?' + purl.toString() + anch;
  elem.href = getRealLinkFromGoogleUrl(elem);
}