From 60a75b89580ab9271a4e79b4055f5611f78451be Mon Sep 17 00:00:00 2001
From: Vitaliy Filippov <vitalif@yourcmc.ru>
Date: Mon, 23 Jun 2014 12:17:27 +0000
Subject: [PATCH] Update and simplify Google-Tracking-Be-Gone; now uses
 document.querySelectorAll instead of XPath helper and removes click event
 listeners added via addEventListener

---
 googletracking-b-gone.user.js | 93 ++++++-----------------------------
 1 file changed, 14 insertions(+), 79 deletions(-)

diff --git a/googletracking-b-gone.user.js b/googletracking-b-gone.user.js
index cbc834c..affe178 100644
--- a/googletracking-b-gone.user.js
+++ b/googletracking-b-gone.user.js
@@ -1,8 +1,7 @@
 // Google Tracking-B-Gone - FIXED version (by Vitaliy Filippov)
-// version 2.4
-// Release Date: 2013-02-06
-// Original link http://sbdev.org
-// Now http://userscripts.org/scripts/show/120330
+// version 2.5
+// Release Date: 2014-06-14
+// Homepage http://userscripts.org/scripts/show/120330
 // See also http://userscripts.org/scripts/show/132237
 //
 // ===== INSTRUCTIONS =====
@@ -33,17 +32,16 @@
 // ==/UserScript==
 
 doIt(); // make sure we run at least once, regardless of search results page version
-doRTR(); // strip tracking from inital batch of real-time search results
 
 document.addEventListener('DOMAttrModified', function (event) {
-  doRTR(event.target);
+  doIt(event.target);
   if (event.target.id == 'xfoot' || event.target.parentNode.id == 'bfoot') {
     doIt();
   }
 }, false);
 
 document.addEventListener('DOMSubtreeModified', function (event) {
-  doRTR(event.target);
+  doIt(event.target);
   if (event.target.id == 'xfoot') {
     doIt();
   }
@@ -51,88 +49,25 @@ document.addEventListener('DOMSubtreeModified', function (event) {
 
 document.addEventListener('DOMNodeInserted', function (event) {
   if (event.target.parentNode.id == 'gsr') {
-    doRTR();
+    doIt();
   }
 }, false);
 
-function doIt() {
-  var resultLinks = $x("//a[@onmousedown]", XPathResult.ORDERED_NODE_SNAPSHOT_TYPE);
-  resultLinks.forEach(function(link) {  // loop over links
-    if (link.getAttribute('onmousedown')) {
-      link.removeAttribute('onmousedown');
-    }
-  });
-
-  resultLinks = $x("//a");
-  resultLinks.forEach(function(link) {  // loop over links
+function doIt(e) {
+  var resultLinks = e ? e.querySelectorAll('h3.r') : document.querySelectorAll('div#search h3.r');
+  for (var i = 0; i < resultLinks.length; i++) {
+    var link = resultLinks[i].childNodes[0];
     var oldLink = link.href;
-    if (/^https?:\/\/www.google/.test(oldLink) || /^https:\/\/encrypted.google/.test(oldLink)) {
-      var matches = /url\?(url|q)=(.+?)&/.exec(oldLink);
-      if (matches != null) {
-        link.href = unescape(matches[2]);
-      }
-    }
-  });
-}
-
-function doRTR() {
-  if (arguments[0] == undefined) {
-    // get all real-time result links
-    var resultLinks = $x("//div[@id='search']//a", XPathResult.ORDERED_NODE_SNAPSHOT_TYPE);
-  } else {
-    // get all links from the current real-time result
-    var resultLinks = $x(arguments[0], "//a", XPathResult.ORDERED_NODE_SNAPSHOT_TYPE);
-  }
-  resultLinks.forEach(function(link) {  // loop over every link
-    var oldLink = link.href;
-    if (/^http:\/\/www.google.|^\/?url/.test(oldLink) || /^https:\/\/encrypted.google./.test(oldLink)) {
-      var matches = /url\?(url|q)=(.+?)&/.exec(oldLink);
+    if (/^(https?:\/\/(www\.|encrypted\.)?google\.[^\/]*)?\/?url/.test(oldLink)) {
+      var matches = /[\?&](url|q)=(.+?)&/.exec(oldLink);
       if (matches != null) {
         link.href = unescape(matches[2]);
       }
     }
+    // Clear attached event listeners so google can't mangle urls on mouse click
     if (link.getAttribute('onmousedown')) {
       link.removeAttribute('onmousedown');
     }
-  });
-}
-
-// XPath helper, from
-// http://wiki.greasespot.net/Code_snippets
-function $x() {
-  var x='',          // default values
-      node=document,
-      type=0,
-      fix=true,
-      i=0,
-      toAr=function(xp){      // XPathResult to array
-        var final=[], next;
-        while(next=xp.iterateNext())
-          final.push(next);
-        return final
-      },
-      cur;
-  while (cur=arguments[i++])      // argument handler
-    switch(typeof cur) {
-      case "string":x+=(x=='') ? cur : " | " + cur;continue;
-      case "number":type=cur;continue;
-      case "object":node=cur;continue;
-      case "boolean":fix=cur;continue;
-    }
-  if (fix) {      // array conversion logic
-    if (type==6) type=4;
-    if (type==7) type=5;
+    resultLinks[i].innerHTML = resultLinks[i].innerHTML;
   }
-  if (!/^\//.test(x)) x="//"+x;            // selection mistake helper
-    if (node!=document && !/^\./.test(x)) x="."+x;  // context mistake helper
-  var temp=document.evaluate(x,node,null,type,null); //evaluate!
-  if (fix)
-    switch(type) {                              // automatically return special type
-      case 1:return temp.numberValue;
-      case 2:return temp.stringValue;
-      case 3:return temp.booleanValue;
-      case 8:return temp.singleNodeValue;
-      case 9:return temp.singleNodeValue;
-    }
-  return fix ? toAr(temp) : temp;
 }