autolongurlize.user.js

// ==UserScript==
// @name           AutoLongURLize
// @description    Expands shorten/image URLs. (powered by longurl.org)
// @namespace      http://d.hatena.ne.jp/murky-satyr
// @include        http://twitter.com/*
// ==/UserScript==
const ReLnk = /^\s*https?:/, ReImg = /\.(jpe?g|png|gif)\s*$/;
function alu(d) Array.forEach(d, function(e){
  Array.forEach(e.getElementsByTagName('a'), function(a){
    with(a) ReLnk.test(innerHTML) && GM_xmlhttpRequest({
      url: 'http://api.longurl.org/v1/expand?format=json&url='+ href,
      method: 'get',
      onload: function(x){
        if(x.status !== 200) return;
        var {long_url, title} = eval('0,'+ x.responseText);
        if(!long_url) return;
        if(ReImg.test(long_url))
          innerHTML = '<img border=0 src="'+ long_url +'"/>';
        else {
          var h = decodeURIComponent(long_url);
          innerHTML = title ? title +' ('+ h +')' : h;
        }
      }});
  });
});
alu([document]);
setTimeout(function() self.AutoPagerize && AutoPagerize.addFilter(alu));