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Canonical links

Replace twitter redirection url (http://t.co/...) by the real URLs as to improve privacy.

当前为 2015-05-14 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name        Canonical links
  3. // @description Replace twitter redirection url (http://t.co/...) by the real URLs as to improve privacy. 
  4. // @author      Guillaume
  5. // @namespace   https://greasyfork.org/fr/users/11386-guillaume
  6. // @include     https://twitter.com/*
  7. // @version     1.1
  8. // @grant       none
  9. // @run-at      document-start
  10. // @license     CC by-sa http://creativecommons.org/licenses/by-sa/3.0/
  11. // ==/UserScript==
  12.  
  13. // Credits:
  14. //
  15. // - getVisibleText, and textContentVisible
  16. //   This is derived from a work by Ethan Brown.
  17. //   Original license: cc-by sa
  18. //   Source: http://stackoverflow.com/questions/19985306/get-the-innertext-of-an-element-but-exclude-hidden-children
  19.  
  20. function getVisibleText( node )
  21. {
  22.   if ( node.nodeType === 1 ) // Element
  23.   {
  24.     var rect = node.getBoundingClientRect();
  25.     if ( rect.width === 0 || rect.height === 0 )
  26.       return '';
  27.   }
  28.   else if ( node.nodeType === 3 ) // Text
  29.   {
  30.     return node.textContent;
  31.   }
  32.   var text = '';
  33.   for( var i = 0; i < node.childNodes.length; i++ ) 
  34.     text += getVisibleText( node.childNodes[i] );
  35.   return text;
  36. }
  37.  
  38. if ( ! Node.prototype.hasOwnProperty('textContentVisible') )
  39. {
  40.   Object.defineProperty(Node.prototype, 'textContentVisible', {
  41.       get: function() { 
  42.          return getVisibleText( this );
  43.       }, 
  44.       enumerable: true
  45.   });
  46. }
  47.  
  48. var makeLinkCanonical = function(el)
  49. {
  50.   var text = document.createTextNode(el.textContentVisible);
  51.   var url = el.dataset.expandedUrl;
  52.   
  53.   var newLink = document.createElement('a');
  54.   newLink.href = url;
  55.   newLink.title = el.title;
  56.   newLink.className = el.className;
  57.   newLink.dir = el.dir;
  58.   newLink.appendChild(text);
  59.   
  60.   el.parentNode.replaceChild(newLink, el);
  61. };
  62.  
  63. window.addEventListener("load", function(ev) {
  64.   // unshadow for better debugging
  65.   delete console.log;
  66. }, true);
  67.  
  68. document.addEventListener("load", function(ev) {
  69.   [].slice.call(document.querySelectorAll('a[data-expanded-url]')).forEach(makeLinkCanonical);
  70. }, true);