// ==UserScript==
// @name 百度云直接下载
// @namespace undefined
// @version 0.2
// @description 直接下载百度云的文件，可以避免下载文件时调用云管家；只支持单个文件，不支持文件夹和多文件下载
// @author Roger Zhu
// @match http://pan.baidu.com/*
// @match https://pan.baidu.com/*
// @require http://code.jquery.com/jquery-latest.js
// @run-at document-end
// @grant none
// ==/UserScript==
var $ = $ || window.$;
(function() {
'use strict';
var yunData,sign,fidlist=null,timestamp,bdstoken,fileid=null,logid,downloadLink;
var panAPIUrl = "https://pan.baidu.com/api/";
var restAPIUrl1 = "https://pcs.baidu.com/rest/2.0/pcs/";
var restAPIUrl2 = "https://d.pcs.baidu.com/rest/2.0/pcs/";
initParams();
addButton();
createIframe();
console.log('Baidu Yun Helper load successful!');
function initParams(){
yunData = window.yunData;
sign = getSign();
timestamp = getTimestamp();
bdstoken = getBDStoken();
logid = getLogid();
}
//添加下载按钮
function addButton(){
var $dropdownbutton = $('<span class="g-dropdown-button"></span>');
var $dropdownbutton_a = $('<a class="g-button" data-button-id="b200" data-button-index="200" href="javascript:void(0);"></a>');
var $dropdownbutton_a_span = $('<span class="g-button-right"><em class="icon icon-download-gray" title="百度云下载助手"></em><span class="text" style="width: auto;">下载助手</span></span>');
var $dropdownbutton_span = $('<span class="menu" style="width:auto"></span>');
var $panAPIDownloadButton = $('<a data-menu-id="b-menu201" class="g-button-menu" href="javascript:void(0);">直接下载</a>');
var $restAPIDownloadButton1 = $('<a data-menu-id="b-menu202" class="g-button-menu" href="javascript:void(0);">API下载一</a>');
var $restAPIDownloadButton2 = $('<a data-menu-id="b-menu203" class="g-button-menu" href="javascript:void(0);">API下载二</a>');
$dropdownbutton_span.append($panAPIDownloadButton).append($restAPIDownloadButton1).append($restAPIDownloadButton2);
$dropdownbutton_a.append($dropdownbutton_a_span);
$dropdownbutton.append($dropdownbutton_a).append($dropdownbutton_span);
$dropdownbutton.hover(function(){
$dropdownbutton.toggleClass('button-open');
});
$panAPIDownloadButton.click(panAPIDownloadClick);
$restAPIDownloadButton1.click(restAPIDownloadClick1);
$restAPIDownloadButton2.click(restAPIDownloadClick2);
$($('div.list-header-operate div').get(1)).append($dropdownbutton);
}
function panAPIDownloadClick(){
console.log('PAN API download button clicked.');
if(!checkSelectItem())
return;
fileid = getSelectFileId();
if (fileid === null) {
return;
}
fidlist = getFidList(fileid);
if (fidlist.length === 0) {
alert("获取文件ID失败，请重试！");
return;
}
fidlist = "["+fidlist+"]";
downloadLink = getDownloadLinkWithPanAPI(fidlist);
execDownload(downloadLink);
}
function restAPIDownloadClick1(){
console.log("REST API download 1 button clicked.");
if(!checkSelectItem())
return;
downloadLink = getDownloadLinkWithRESTAPI1();
execDownload(downloadLink);
}
function restAPIDownloadClick2(){
console.log("REST API download 1 button clicked.");
if(!checkSelectItem())
return;
downloadLink = getDownloadLinkWithRESTAPI2();
execDownload(downloadLink);
}
function checkSelectItem(){
var $dd = $('div.list-view dd.item-active');
if ($dd.length === 0) {
alert("没有选中文件！");
return false;
} else if ($dd.length>1){
alert("不要选中多个文件，只支持单个下载！");
return false;
}
var $div = $($dd[0]).children('div');
var type = $($div[0]).attr('class').split(" ");
if(type[1] == "dir-small"){
alert("不支持目录下载！");
return false;
}
return true;
}
function getSign(){
var signFnc;
try{
signFnc = new Function("return " + yunData.sign2)();
} catch(e){
throw new Error(e.message);
}
return base64Encode(signFnc(yunData.sign5,yunData.sign1));
}
//获取当前目录
function getDir(){
var url = window.location.href;
return decodeURIComponent(url.substring(url.lastIndexOf('=')+1));
}
function getFileName(){
var fileid = null;
var $a = $('div.list-view dd.item-active div.file-name a.filename');
var filename = $a[0].text;
return filename;
}
//获取当前目录的文件列表
function getFileList(dir){
var filelist = null;
var listUrl = panAPIUrl + "list";
var params = {
dir:dir,
bdstoken:bdstoken,
logid:logid,
num:100,
order:'size',
desc:0,
clienttype:0,
showempty:'0',
web:1,
page:1,
channel:'chunlei',
appid:250528
};
$.ajax({
url:listUrl,
async:false,
method:'GET',
data:params,
success:function(result){
filelist = result;
}
});
return filelist;
}
//获取选中文件的fileid
function getSelectFileId(){
var dir = getDir();
var filename = getFileName();
if(filename === null)
return null;
var filelist = getFileList(dir);
console.log("filename:"+filename);
if(filelist === null || filelist.errno !== 0){
alert("获取文件列表失败，请重试！");
return null;
} else {
for(var i=0;i<filelist.list.length;i++){
if (filelist.list[i].server_filename === filename){
fileid = filelist.list[i].fs_id;
}
}
}
return fileid;
}
function getFidList(fileid){
var list = [];
if(fileid !== null){
list.push(fileid);
}
return list;
}
function getTimestamp(){
return yunData.timestamp;
}
function getBDStoken(){
return yunData.MYBDSTOKEN;
}
function getLogid(){
var name = "BAIDUID";
function getCookie(e) {
var o, t;
var n = window.document,c=window.decodeURI;
return n.cookie.length > 0 && (o = n.cookie.indexOf(e + "="),-1 != o) ? (o = o + e.length + 1,t = n.cookie.indexOf(";", o),-1 == t && (t = n.cookie.length),c(n.cookie.substring(o, t))) : "";
}
var u = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/~！@#￥%……&";
var d = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;
var f = String.fromCharCode;
function l(e){
if (e.length < 2) {
var n = e.charCodeAt(0);
return 128 > n ? e : 2048 > n ? f(192 | n >>> 6) + f(128 | 63 & n) : f(224 | n >>> 12 & 15) + f(128 | n >>> 6 & 63) + f(128 | 63 & n);
}
var n = 65536 + 1024 * (e.charCodeAt(0) - 55296) + (e.charCodeAt(1) - 56320);
return f(240 | n >>> 18 & 7) + f(128 | n >>> 12 & 63) + f(128 | n >>> 6 & 63) + f(128 | 63 & n);
}
function g(e){
return (e + "" + Math.random()).replace(d, l);
}
function m(e){
var n = [0, 2, 1][e.length % 3];
var t = e.charCodeAt(0) << 16 | (e.length > 1 ? e.charCodeAt(1) : 0) << 8 | (e.length > 2 ? e.charCodeAt(2) : 0);
var o = [u.charAt(t >>> 18), u.charAt(t >>> 12 & 63), n >= 2 ? "=" : u.charAt(t >>> 6 & 63), n >= 1 ? "=" : u.charAt(63 & t)];
return o.join("");
}
function h(e){
return e.replace(/[\s\S]{1,3}/g, m);
}
function p(){
return h(g((new Date()).getTime()));
}
function w(e,n){
return n ? p(String(e)).replace(/[+\/]/g, function(e) {
return "+" == e ? "-" : "_";
}).replace(/=/g, "") : p(String(e));
}
return w(getCookie(name));
}
//获取下载地址。这个地址不是直接下载地址，访问这个地址会返回302，response header中的location才是真实下载地址
//暂时没有找到提取方法
function getDownloadLinkWithPanAPI(fidlist){
var downloadUrl = panAPIUrl + "download";
var link = null;
var params= {
sign:sign,
timestamp:timestamp,
fidlist:fidlist,
type:'dlink',
channel:'chunlei',
web:1,
app_id:250528,
bdstoken:bdstoken,
logid:logid,
clienttype:0
};
$.ajax({
url:downloadUrl,
async:false,
method:'GET',
data:params,
success:function(result){
link = result.dlink[0].dlink;
}
});
return link;
}
function getDownloadLinkWithRESTAPI1(){
var path = getDir();
var filename = getFileName();
var link = restAPIUrl1 + 'file?method=download&app_id=250528&path=' + path + '/' + filename;
return link;
}
function getDownloadLinkWithRESTAPI2(){
var path = getDir();
var filename = getFileName();
var link = restAPIUrl2 + 'file?method=download&app_id=250528&path=' + path + '/' + filename;
return link;
}
function execDownload(link){
console.log("download link:"+link);
$('#helperdownloadiframe').attr('src',link);
}
function createIframe(){
var $div = $('<div class="helper-hide" style="padding:0;margin:0;display:block"></div>');
var $iframe = $('<iframe src="javascript:void(0)" id="helperdownloadiframe" style="display:none"></iframe>');
$div.append($iframe);
$('body').append($div);
}
function base64Encode(t){
var a, r, e, n, i, s, o = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
for (e = t.length,r = 0,a = ""; e > r; ) {
if (n = 255 & t.charCodeAt(r++),r == e) {
a += o.charAt(n >> 2);
a += o.charAt((3 & n) << 4);
a += "==";
break;
}
if (i = t.charCodeAt(r++),r == e) {
a += o.charAt(n >> 2);
a += o.charAt((3 & n) << 4 | (240 & i) >> 4);
a += o.charAt((15 & i) << 2);
a += "=";
break;
}
s = t.charCodeAt(r++);
a += o.charAt(n >> 2);
a += o.charAt((3 & n) << 4 | (240 & i) >> 4);
a += o.charAt((15 & i) << 2 | (192 & s) >> 6);
a += o.charAt(63 & s);
}
return a;
}
function testAjax(url){
$.ajax({
url:url,
method:'GET',
async:true,
xhrFields:{
withCredentials: true
},
success:function(data,textStatus,xhr){
console.log(xhr);
},
error:function(xhr,textStatus,error){
console.log(xhr);
}
});
}
function testFetch(url){
var request = new Request(url,{
method:'GET',
mode:'no-cors',//使用no-cors会正常提交请求，浏览器会在后台用fetch获取文件；使用cors，访问302重定向后的地址会产生错误，原因是提交的请求header里面origin为null
redirect: 'follow',
credentials: 'include'
});
fetch(request).then(function(response){
console.log("response:");
console.log(response);
});
}
function testXHR(url){
var xhr = new XMLHttpRequest();
xhr.withCredentials = true;
xhr.onload = function(e){
console.log("onload:");
console.log(this);
console.log(e);
};
xhr.onreadystatechange = function(e){
console.log("onreadystatechange:");
console.log(this);
console.log(e);
};
//xhr.open("GET",url,true);
//xhr.send();
xhr.open('HEAD',url);
xhr.send(null);
}
})();
