weiyun.js

// ==UserScript==
// @name       My WeiYun Userscript
// @namespace  http://endintro.com/
// @version    0.1
// @description  fetch direct download url from WeiYun share file, need to login
// @match      http://share.weiyun.com/*
// @copyright  2014+, You
// ==/UserScript==
(function() {
    // injection
    var script = document.createElement("script");
    script.textContent = "(" + main.toString() + ")();";
    document.body.appendChild(script);
})();

function main() {
    window.setTimeout(function() {
        seajs.use(['$', 'lib', 'common', 'outlink'], function($, lib, common, outlink) {
            var tools = {
                getQueryStringRegExp: function(name, url) {
                    var reg = new RegExp("(^|\\?|&)" + name + "=([^&]*)(\\s|&|$)", "i");
                    if (reg.test(url)) return decodeURI(RegExp.$2.replace(/\+/g, " "));
                    return "";
                }
            }

            // instantiate 
            var outlink_mod = outlink.get('./outlink');
            var uri = window.location.href.split("/")[3];
            outlink_mod.render(uri);

            var request = common.get('./request');
            outlink_appid = 3011;

            var downloadURL = outlink_mod.getDownloadURL();
            //console.log(downloadURL);

            var zn = tools.getQueryStringRegExp('zn', downloadURL);
            var os_info = tools.getQueryStringRegExp('os_info', downloadURL);
            var browser = tools.getQueryStringRegExp('browser', downloadURL);

            request.xhr_get({
                url: 'http://web2.cgi.weiyun.com/outlink.fcg',
                cmd: 'WeiyunShareDownload',
                pb_v2: true,
                header: {
                    appid: outlink_appid
                },
                body: {
                    share_key: outlink_mod.share_key,
                    pack_name: zn,
                    pwd: outlink_mod.pwd,
                    os_info: os_info,
                    browser: browser
                }
            }).ok(function(msg, body) {
                console.log('success!');
                $(".main").append('<a href="' + body.download_url + '">' + body.download_url + '</a>');
            }).fail(function(msg, ret) {
                console.log('failed!');
                $(".main").append('<a href="###">Fetching direct download url failed!</a>');
            });
        });

    }, 2000);
}