permanize.user.js

// ==UserScript==
// @name           Permanize Monkey
// @namespace      http://userscripts.org/users/40991
// @description    GM port of the Jetpack app http://app.permanize.org/
// @include        *
// @require        http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js
// ==/UserScript==

// It's based on http://permanize.appspot.com/jetpack/permanize.js

var shorts = "bit.ly, cli.gs, digg.com, is.gd, tr.im, kl.am, tinyurl.com,  307.to, adjix.com, b23.ru, bacn.me, bloat.me, budurl.com, clipurl.us, cort.as, dwarfurl.com, ff.im, fff.to, href.in, idek.net, korta.nu, lin.cr, ln-s.net, loopt.us, lost.in, memurl.com, merky.de, migre.me, moourl.com, nanourl.se, ow.ly, peaurl.com, ping.fm, piurl.com, plurl.me, pnt.me, poprl.com, post.ly, rde.me, reallytinyurl.com, redir.ec, rubyurl.com, short.ie, short.to, smallr.com, sn.im, sn.vc, snipr.com, snipurl.com, snurl.com, tiny.cc, tinysong.com, togoto.us, tra.kz, trg.li, twurl.cc, twurl.nl, u.mavrev.com, u.nu, ur1.ca, url.az, url.ie, urlx.ie, w34.us, xrl.us, yep.it, zi.ma, zurl.ws, chilp.it, notlong.com, qlnk.net, trim.li".
    split(/,\s*/)
var shortsLength = shorts.length;

var found = {};
var blacklist = {};

function replaceHref(a, shortUrl, longUrl) {
    if(a.attr("href") === shortUrl && longUrl.indexOf("http://") === 0) {
        a.attr("href", longUrl)
        found[shortUrl] = longUrl
    }
}

function handleAnchor(e) {
    var self = this;
    var href = self.href;
    if(found[href]) {
        return replaceHref($(self), href, found[href])
    }
    if(href != "null" && href != "" && !blacklist[href] && href.indexOf("http://") === 0) {
        for(var i = 0; i < shortsLength; ++i) {
            if(href.indexOf(shorts[i]) === 7) {  // "http://".length
                GM_xmlhttpRequest({
                    method: 'GET', 
                    url: "http://permanize.appspot.com/resolve/"+encodeURIComponent(href),
                    onload: function(res) {
                        replaceHref($(self), href, res.responseText)
                    },
                    onerror: function (error) {
                        console.log(error)
                    }
                });
                return;
            }
        }
        // still here -> no match
        blacklist[href] = true
    }
}

(function (doc) {
    var bind = function () {
        $(doc).find("a").each(handleAnchor)
    };
    
    bind();
    
    var timeout;
    $(doc).bind("DOMNodeInserted", function () {
        if(timeout) clearTimeout(timeout)
        timeout = setTimeout(bind, 300)
    })
})(document)