Disable Google Search Result URL Redirector

Disable Google URL redirector (i.e. user data tracking) on Google Search result, including Google Custom Search Engine (CSE) which is used by many websites, and in Google Groups.
目前为 2020-04-12 提交的版本。查看最新版本。
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// ==UserScript==
// @name        Disable Google Search Result URL Redirector
// @namespace   DisableGoogleSearchResultURLRedirector
// @version     1.1.11
// @license     GNU AGPLv3
// @author      jcunews
// @description Disable Google URL redirector (i.e. user data tracking) on Google Search result, including Google Custom Search Engine (CSE) which is used by many websites, and in Google Groups.
// @website     https://gf.qytechs.cn/en/users/85671-jcunews
// @include     *://*/*
// @grant       unsafeWindow
// @run-at      document-start
// ==/UserScript==

(function() {

  //===== CONFIGURATION BEGIN =====

  var disableGoogleAdSense = true;
  var disableInterstitials = false; //e.g. malware warning page

  //===== CONFIGURATION END =====

  function rwt_() { return true }

  function checkElement(ele, m, obj, fn) {
    if (ele.tagName === "SCRIPT") {
      if (disableGoogleAdSense && (/:\/\/cse\.google\.com\/adsense\/search\/(async-)?ads\.js/).test(ele.src)) {
        return false;
      } else if (m = ele.src.match(/:\/\/www.googleapis.com\/customsearch\/.*callback=([^?]+)/)) {
        obj = unsafeWindow;
        m[1].split(".").forEach(function(k, i, a) {
          if (i < (a.length - 1)) {
            obj = obj[k];
          } else {
            fn = obj[k];
            obj[k] = function(data) {
              data.results.forEach(function(res) {
                delete res.clicktrackUrl;
              });
              return fn.apply(this, arguments);
            };
          }
        });
      }
    }
    return true;
  }

  if ((/(www|groups)\.google\.[a-z]+(\.[a-z]+)?/).test(location.hostname)) {
    //Google site
    addEventListener("mousedown", (ev, a) => {
      //web search
      if (unsafeWindow.rwt && (unsafeWindow.rwt !== rwt_)) unsafeWindow.rwt = rwt_;
      //image search
      if ((a = ev.target.parentNode) && (a = a.parentNode) && (a.tagName === "A") && a.attributes["data-ved"]) a.setAttribute("rlhc", "1");
    }, true);
    //Google web search site
    function removeInterstitials() {
      document.querySelectorAll('#rcnt #res #search .g a[href^="/interstitial?"]').forEach(a => {
        a.setAttribute("href", decodeURIComponent(a.getAttribute("href").match(/\burl=([^&]+)/)[1]));
        a.rel = "noreferer";
      });
    }
    //Google image search site
    let open_ = unsafeWindow.open;
    unsafeWindow.open = function(url, target) {
      if (!url) {
        let wnd = open_.apply(this, arguments);
        let wrt = wnd.document.write;
        wnd.document.write = function(s) {
          let m = s.match(/<meta http-equiv="refresh"[^>]+>/);
          if (m) {
            let e = document.createElement("DIV");
            e.innerHTML = m[0];
            e = e.firstElementChild;
            e.content = "0; url=" + decodeURIComponent(e.content.match(/https:\/\/www\.google\.[^/]+\/url\?.*?&url=([^&]+)/)[1]);
            s = s.replace(m[0], e.outerHTML);
            wnd.document.write = wrt;
          }
          return wrt.apply(this, arguments);
        };
        return wnd;
      } else {
        let m = url.match(/https:\/\/www\.google\.[^/]+\/url\?.*?&url=([^&]+)/);
        if (m) url = decodeURIComponent(m[1]);
        return open_.apply(this, arguments);
      }
    };
    //Google Groups and probably others too
    let desc = Object.getOwnPropertyDescriptor(HTMLAnchorElement.prototype, "href");
    let setHref = desc.set;
    desc.set = function(value) {
      if ((/\/url.*[?&]q=(ht|f)tp/).test(value)) {
        this.rel = "noreferer";
        return this.href;
      } else return setHref.apply(this, arguments);
    };
    Object.defineProperty(HTMLAnchorElement.prototype, "href", desc);
    //Any search site
    addEventListener("load", () => {
      if (disableInterstitials) removeInterstitials();
    });
  } else {
    //other sites
    let appendChild_ = Node.prototype.appendChild;
    Node.prototype.appendChild = function(ele) {
      if (checkElement(ele)) {
        return appendChild_.apply(this, arguments);
      } else return ele;
    };
    let insertBefore_ = Node.prototype.insertBefore;
    Node.prototype.insertBefore = function(ele) {
      if (checkElement(ele)) {
        return insertBefore_.apply(this, arguments);
      } else return ele;
    };
  }

})();
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