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Decloak links and open directly

Open redirected/cloaked links directly

当前为 2019-03-01 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name          Decloak links and open directly
  3. // @description   Open redirected/cloaked links directly
  4. // @version       2.1.0
  5. // @author        wOxxOm
  6. // @namespace     wOxxOm.scripts
  7. // @icon          https://i.imgur.com/cfmXJHv.png
  8. // @resource      icon https://i.imgur.com/cfmXJHv.png
  9. // @license       MIT License
  10. // @run-at        document-start
  11. // @grant         GM_getResourceURL
  12. // @match         *://*/*
  13. // ==/UserScript==
  14.  
  15. var POPUP = document.createElement('a');
  16. POPUP.id = GM_info.script.name;
  17. POPUP.title = 'Original link';
  18. POPUP.style.cssText = 'all: unset;' +
  19.   'width: 18px;' +
  20.   'height: 18px;' +
  21.   'background: url("' + GM_getResourceURL('icon') + '") center no-repeat;' +
  22.   'background-size: 16px;' +
  23.   'background-color: white;' +
  24.   'opacity: 0;' +
  25.   'transition: opacity .5s;' +
  26.   'border: 1px solid #888;' +
  27.   'border-radius: 11px;' +
  28.   'z-index: 2147483647;' +
  29.   'margin-left: 0;' +
  30.   'position: absolute;'
  31.   .replace(/;/g, '!important;');
  32.  
  33. var allLinks = document.getElementsByTagName('a');
  34.  
  35. window.addEventListener('mousedown', decloakOnClick, true);
  36. window.addEventListener('keydown', function(e) { if (e.keyCode == 13) decloakOnClick(e) }, true);
  37.  
  38. window.addEventListener('load', function _() {
  39.   window.removeEventListener('load', _);
  40.   process(allLinks);
  41.   new MutationObserver(function(mutations) {
  42.     if (allLinks[0])
  43.       Promise.resolve().then(() => extractLinks(mutations));
  44.   }).observe(document.body || document, {childList: true, subtree: true});
  45. });
  46.  
  47. function extractLinks(mutations) {
  48.   var extracted = [];
  49.   for (var m = 0, ml = mutations.length; m < ml; m++) {
  50.     for (var n = 0, added = mutations[m].addedNodes, nl = added.length; n < nl; n++) {
  51.       var node = added[n];
  52.       if (node.localName == 'a')
  53.         extracted.push(node);
  54.       else if ('children' in node && node.children[0]) {
  55.         var childLinks = node.getElementsByTagName('a');
  56.         if (childLinks[0])
  57.           [].push.apply(extracted, childLinks);
  58.       }
  59.     }
  60.   }
  61.   process(extracted);
  62. }
  63.  
  64. function process(links) {
  65.   for (var i = 0, len = links.length; i < len; i++) {
  66.     var a = links[i];
  67.     if (a.href.match(/^(http|ftp)/) && decloak(a))
  68.       a.addEventListener('mouseover', onHover, true);
  69.   }
  70. }
  71.  
  72. function onHover(e) {
  73.   if (onHover.element)
  74.     onHover.element.removeEventListener('mouseout', cancelHover);
  75.   clearTimeout(onHover.timeout);
  76.   onHover.timeout = setTimeout(showPopup, 500, this);
  77.   onHover.element = this;
  78.   this.addEventListener('mouseout', cancelHover);
  79. }
  80.  
  81. function cancelHover(e) {
  82.   this.removeEventListener('mouseout', cancelHover);
  83.   clearTimeout(cancelHover.timeout);
  84.   cancelHover.timeout = setTimeout(hidePopup, 500, this);
  85. }
  86.  
  87. function showPopup(a) {
  88.   if (!a.parentElement || !a.matches(':hover'))
  89.     return;
  90.   var linkStyle = getComputedStyle(a);
  91.   POPUP.href = a.hrefUndecloaked;
  92.   POPUP.style.opacity = '0';
  93.   POPUP.style.marginLeft = -(
  94.     (parseFloat(linkStyle.paddingRight) || 0) +
  95.     (parseFloat(linkStyle.marginRight) || 0) +
  96.     (parseFloat(linkStyle.borderRightWidth) || 0) +
  97.     Math.max(0, a.getBoundingClientRect().right + 32 - innerWidth)
  98.   ) + 'px';
  99.   setTimeout(function() { POPUP.style.opacity = '1' }, 0);
  100.   a.parentElement.insertBefore(POPUP, a.nextSibling);
  101.   POPUP.addEventListener('click', openOriginal);
  102. }
  103.  
  104. function hidePopup(a) {
  105.   if (POPUP.matches(':hover') || onHover.element && onHover.element.matches(':hover')) {
  106.     cancelHover.call(a);
  107.   } else if (POPUP.style.opacity == '1') {
  108.     POPUP.style.opacity = '0';
  109.     cancelHover.call(a);
  110.   } else {
  111.     onHover.element = null;
  112.     POPUP.remove();
  113.   }
  114. }
  115.  
  116. function openOriginal(e) {
  117.   POPUP.href = '';
  118.   e.preventDefault();
  119.   e.stopPropagation();
  120.   e.stopImmediatePropagation();
  121.   setTimeout(function() {
  122.     onHover.element.href = onHover.element.hrefUndecloaked;
  123.     onHover.element.dispatchEvent(new MouseEvent('click', {bubbles: true}));
  124.   });
  125. }
  126.  
  127. function decloak(a) {
  128.   if (a == POPUP)
  129.     return;
  130.  
  131.   if (/\bthis\.href\s*=[^=]/.test(a.getAttribute('onmousedown')))
  132.     a.onmousedown = null;
  133.   if (/\bthis\.href\s*=[^=]/.test(a.getAttribute('onclick')))
  134.     a.onclick = null;
  135.  
  136.   var m = a.href.match(/[=?]((?:ftp|https?|s?)(?::\/\/[^+&]+|%3[Aa]%2[Ff]%2[Ff][^+&\/]+))/);
  137.   if (!m)
  138.     return;
  139.  
  140.   if (a.hostname == 'disqus.com' && a.pathname.startsWith('/embed/comments/'))
  141.     return;
  142.  
  143.   var realUrl = decodeURIComponent(m[1]);
  144.   if (/^s?:/.test(realUrl))
  145.     realUrl = 'http' + realUrl;
  146.  
  147.   if (a.hostname == 'disq.us' && realUrl.lastIndexOf(':') != realUrl.indexOf(':'))
  148.     realUrl = realUrl.substr(0, realUrl.lastIndexOf(':'));
  149.  
  150.   if (new URL(realUrl).hostname == a.hostname || a.href.match(/[?&=\/]\w*([Ss]ign|[Ll]og)[io]n/)) {
  151.     console.debug('Decloak skipped: assumed a login redirection.');
  152.     return;
  153.   }
  154.  
  155.   a.hrefUndecloaked = a.href;
  156.   a.href = realUrl;
  157.   return true;
  158. }
  159.  
  160. function decloakOnClick(e) {
  161.   var a = e.target.closest && e.target.closest('a');
  162.   if (!a || !a.hrefUndecloaked || !a.href.match(/^(http|ftp)/))
  163.     return;
  164.   decloak(a);
  165. }