// ==UserScript==
// @name            Direct links
// @name:ru         Прямые ссылки
// @namespace       FIX
// @version         0.0.3
// @description     Direct links out
// @description:ru  Замена ссылок на прямые
// @author          raletag
// @match           *://*/*
// @grant           unsafeWindow
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';
    console.time('Direct links load');
    var win = unsafeWindow || window;

    var impCodes = '%3B%2C%2F%3F%3A%40%26%3D%2B%24%23',
    impRegex = new RegExp((impCodes.replace(/%/g,'|%').replace('|','')), 'gi'),
    impDecoded = decodeURIComponent(impCodes),
    impReplacer = function(ch) {
        return impDecoded[impCodes.indexOf(ch.toUpperCase())/3];
    };

    function decodeImportant(text) {
        return text.replace(impRegex, impReplacer);
    }

    function Handler (e) {
        console.time('HandlerTime');
        try {
        var link = e.target, url = link.href, tourl;
        if (!url) {
            while (!url && link !== this) {
                link = link.parentNode;
                url = link.href;
            }
        }
        link.removeEventListener('mouseenter', Handler, false);
        if (!url) {
            return true;
        }
        tourl = ((url.match(/[?&](url|r|z|to|u|go|st.link)=([^&]*)(&|$)/i)||url.match(/(\/leech_out\.php\?.:|\/phpBB2\/goto\/|\/go\/\?)(.*)/i)||[])[2]);
        if (!tourl) {
            return true;
        }
        try {
            tourl = decodeURIComponent(tourl);
            tourl = win.atob(tourl);
            tourl = decodeURIComponent(tourl);
            tourl = escape(tourl);
        } catch (err) {
        }
        tourl = decodeImportant(tourl);
        if (tourl.match(/^http(|s):\/\/([^&]*)/i)) {
            console.group("Direct links");
            console.info(url);
            console.info(tourl);
            link.href = tourl;
            console.timeEnd('HandlerTime');
            console.groupEnd();
        }
        } catch (err) {
            console.error('Direct links error: ' + err);
            console.timeEnd('HandlerTime');
            alert('Direct links error: ' + err);
            return true;
        }
        return true;
    }

    function attachEvent (e) {
        var links = e.querySelectorAll('a[href]');
        for (var i = links.length - 1; i >= 0; --i) {
            links[i].addEventListener('mouseenter', Handler, false);
        }
    }

    attachEvent(document);

    document.addEventListener('DOMNodeInserted',function(e){
        if (e.currentTarget) attachEvent(e.currentTarget);
        });

    console.timeEnd('Direct links load');
})();