try to take over the world!
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// ==UserScript==
// @name 悦读pdf下载
// @namespace http://tampermonkey.net/
// @version 0.1
// @description try to take over the world!
// @author You
// @match https://yd.51zhy.cn/ebook/reader/index.html*
// @require https://cdn.bootcdn.net/ajax/libs/jquery/1.10.0/jquery.min.js
// @grant none
// ==/UserScript==
function loadStyle(url){
var link = document.createElement('link');
link.type = 'text/css';
link.rel = 'stylesheet';
link.href = url;
var head = document.getElementsByTagName('head')[0];
head.appendChild(link);
}
function loadScript(url, callback){
var script = document.createElement ("script")
script.type = "text/javascript";
if (script.readyState){ //IE
script.onreadystatechange = function(){
if (script.readyState == "loaded" || script.readyState == "complete"){
script.onreadystatechange = null;
if(typeof(callback) == 'function')
callback();
}
};
} else { //Others
script.onload = function(){
if(typeof(callback) == 'function')
callback();
};
}
script.src = url;
document.getElementsByTagName("head")[0].appendChild(script);
}
//获取元素在数组的下标
Array.prototype.indexOf = function(val) {
for (var i = 0; i < this.length; i++) {
if (this[i] == val) {
return i;
};
}
return -1;
};
//根据数组的下标，删除该下标的元素
// Array.prototype.remove = function(val) {
// var index = this.indexOf(val);
// if (index > -1) {
// this.splice(index, 1);
// }
// };
function range(start, stop, step = 1) {
return Array(Math.ceil((stop - start) / step))
.fill(start)
.map((x, y) => x + y * step)
}
function Uint8ToString(u8a){
var CHUNK_SZ = 0x8000;
var c = [];
for (var i=0; i < u8a.length; i+=CHUNK_SZ) {
c.push(String.fromCharCode.apply(null, u8a.subarray(i, i+CHUNK_SZ)));
}
return c.join("");
}
function fakeClick(obj) {
var ev = document.createEvent("MouseEvents");
ev.initMouseEvent("click", true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
obj.dispatchEvent(ev);
}
function exportRaw(name, data) {
var urlObject = window.URL || window.webkitURL || window;
var export_blob = new Blob([data]);
var save_link = document.createElementNS("http://www.w3.org/1999/xhtml", "a")
save_link.href = urlObject.createObjectURL(export_blob);
save_link.download = name;
fakeClick(save_link);
}
// 保存加载过的页面
// key 为页码，从0开始
// val 为u8n
var pages_save = {};
// 浏览器直接下载时，pages_save不保存页面，pages_downloaded保存已经下载过的
var pages_downloaded = [];
var download_direct = 1;
// vue接口
var v;
// 依赖vue接口
// v = window.$vm.$children[0].$children[0].$children[0]
// v.pageArr
// v.DetailData.Title
// v.numberOfPages
// v.pageIndex
// v.setLoadTask()
// 注册到window便于调试
window.pages_save = pages_save;
window.v = v;
// v = window.$vm.$children[0].$children[0].$children[0]
// v.pageArr
// 检查是否有新的页面已经下载
function check_new(){
v.pageArr.forEach(function (val,idx){
// console.log('check:',idx,val.isLoadIng,val);
if(val.isLoadIng == true)return;
// 直接下载
if(download_direct == 1){
if(idx in need_download_pages && !(idx in pages_downloaded)){
pages_downloaded.push(idx);
var page_num = idx+1;
exportRaw(v.DetailData.Title+'_' + page_num.toString()+".pdf", val.getUint8Array);
show_msg("[Download] page:", page_num, '/', v.numberOfPages);
}
}
// 保存导出json下载
else{
if(pages_save[idx]==undefined){
pages_save[idx] = val.getUint8Array;
show_msg("[Page] got page:", idx+1, '/', v.numberOfPages);
}
}
});
// 计算进度
var cnt = 0;
need_download_pages.forEach(function(num){
if(download_direct){
if(num in pages_downloaded){
cnt++;
}
}
else{
if(pages_save[num]!=undefined){
cnt++;
}
}
})
var p = Math.round(cnt/need_download_pages.length*100);
set_progress(p);
}
// 周期check
var check_timer;
function start_check(){
check_timer = setInterval(function (){
check_new();
},1000);
}
function stop_check(){
clearInterval(check_timer);
}
// 跳转到页 page_num从0开始
// 内部调用check
function jump_page(page_num){
if(page_num>=v.numberOfPages){
show_msg('页码超出范围。',page_num);
return;
}
v.pageIndex = page_num;
v.setLoadTask();
check_new();
}
// 对于need_download_pages中的下载任务，自动进行
var auto_next_timer;
var current_task_idx;
var is_done = 0;
// tasks
// 内容为页码 页码从0开始
var need_download_pages = [];
window.need_download_pages = need_download_pages;
// t 单位s 最小5s
// start 开始的序号
// pages 需要下载的页码 从0开始
function start_auto_next(t, start, pages){
if(t<=5 || t == undefined){
t = 5;
}
if(start == undefined){
current_task_idx = 0;
start = 0;
}
else{
current_task_idx = start;
}
if(pages == undefined)
pages = [...Array(v.numberOfPages).keys()];
need_download_pages = [];
for(var i=0;i<pages.length;i++){
if(pages[i]<v.numberOfPages && pages[i]>0)
need_download_pages.push(pages[i]);
}
console.log('pages:', need_download_pages);
auto_next_timer = setInterval(function(){
check_new();
var s = current_task_idx;
var cnt = 0;
while(cnt<need_download_pages.length){
var page_num = need_download_pages[s];
if(page_num in pages_downloaded || pages_save[page_num]!=undefined){
// 已经下载过了
s ++;
s = s%need_download_pages.length;
cnt++;
}
else{
break;
}
}
if(cnt>=need_download_pages.length){
// 下载完成
is_done = 1;
stop_auto_next();
set_progress(100);
}
else{
// 下载
jump_page(need_download_pages[s]);
current_task_idx = s;
show_msg('[Jump]',current_task_idx,"page:",need_download_pages[s]+1);
}
},t*1000);
}
function stop_auto_next(){
clearInterval(auto_next_timer);
}
var download_obj = {};
function export_pages(){
download_obj['pages']={};
var page_nums = Object.keys(pages_save);
page_nums.forEach(function(val){
download_obj['pages'][val] = Uint8ToString(pages_save[val]);
})
}
function parse_pages(str){
var pages = [];
str = str.replace('\n',',');
var _pages = str.split(',');
for(var i=0,len=_pages.length;i<len;i++){
var p = _pages[i]
if (p.match(/^\d+$/)){
pages.push(Number(p));
}
else{
rep = p.match(/^(\d+)-(\d+)$/)
if(rep){
pages=pages.concat(range(Number(rep[1]), Number(rep[2])+1));
}
}
}
pages = [...new Set(pages)];
return pages.sort(function(a, b){return a - b})
}
var download_all_timer;
function download(t, need){
console.log(need);
is_done = 0;
while(v==undefined){
v = window.$vm.$children[0].$children[0].$children[0];
show_msg('[Wait] window.$vm');
set_status('wait window.$vm');
}
show_msg('[OK] window.$vm');
set_status('Downloading...');
// start_check();
start_auto_next(t, 0, need);
clearInterval(download_all_timer);
download_all_timer = setInterval(function (){
if(is_done == 1){
if(download_direct != 1){
export_pages();
download_obj['DetailData'] = v.DetailData;
var out = JSON.stringify(download_obj, null, 4);
exportRaw(v.DetailData.Title+'.json', out);
}else{
pages_downloaded = [];
}
clearInterval(download_all_timer);
show_msg('Download Done.');
set_status('Download OK!');
}
},1000);
}
// 终止下载
function cancel_download(){
stop_auto_next();
clearInterval(download_all_timer);
is_done = 0;
need_download_pages = [];
pages_save = {};
show_msg("[Cancel]:cancel download all OK!");
set_status('Ready! pages:'+v.numberOfPages.toString());
}
function set_progress(n){
if(window.element){
element.progress('mprogress', n.toString()+'%');
}
}
function set_status(msg){
$('#mstatus').text(msg);
}
function show_msg(msg){
var s = ''
for(var i=0; i<arguments.length;i++){
s+=' '+String(arguments[i]);
}
console.log(s);
if(typeof(layer.msg) == 'function'){
layer.msg(s, {
offset: 't',
anim: 5,
area: 300
});
}
}
// direct 1 浏览器直接下载
function fun_btn(direct = 1){
layer.prompt({
type: 1,
formType: 2,
closeBtn: 1,
resize: false,
btn:["确定"],
value: '1-'+v.numberOfPages.toString(),
area: ['500px', '100px'],
title: '请输入要下载的页码,起始为1,例如：1-5,10,15,20-30',
},
function(value, index, elem){
// layer.alert(JSON.stringify(value));
layer.close(index);
var need = parse_pages(value);
layer.msg(JSON.stringify(need));
// 转换为从0开始
for(i in need){need[i]--;};
//输入间隔时间
layer.prompt({
formType: 0,
closeBtn: 0,
resize: false,
btn:["确定"],
value: '10',
area: ['500px', '100px'],
title: '请输入自动加载间隔时间',
},
function(value, index, elem){
layer.close(index);
if(direct)
download_direct = 1;
else
download_direct = 0;
download(Number(value), need);
});
});
}
loadStyle("https://www.layuicdn.com/layui/css/layui.css")
loadScript("https://www.layuicdn.com/layui/layui.all.js", function(){
// 由于引入的为all.js 模块都一次性加载，因此不用执行 layui.use() 来加载对应模块，直接使用即可layer,element
layer.open({
type: 1,
content: '<div style="padding:20px;text-align: center;"><h3>Github:<a style="color: #23696f" href="https://github.com/ygcaicn/keledge" target="_blank">Star</a></h3><br><p>Status:<span id="mstatus">Ready!</span></p></div> <div class="layui-progress layui-progress-big" lay-filter="mprogress" lay-showpercent="true"><div class="layui-progress-bar" lay-percent="0%"></div></div>',
skin: 'layui-layer-molv',
shade: 0,
btnAlign: 'c' ,
offset: 'rt',
area:'300px',
btn: ['Download', 'Cancel'],
btn1: function(){
fun_btn();
return false;
},
// btn2: function(){
// fun_btn(0);
// return false;
// },
btn2: function(){
cancel_download();
return false;
}
});
window.element = layui.element;
window.element.init();
set_status('Wait initing...');
})
var wait_vue_timer;
wait_vue_timer = setInterval(function(){
if(v == undefined){
v = window.$vm.$children[0].$children[0].$children[0];
show_msg('[Wait] window.$vm');
set_status('wait window.$vm');
}
else{
show_msg('[OK] window.$vm');
set_status('Loading numberOfPages...');
var _t = setInterval(function (){
if(v.numberOfPages != undefined && v.numberOfPages > 0){
set_status('Ready! pages:'+v.numberOfPages.toString());
clearInterval(_t);
}
},200);
clearInterval(wait_vue_timer);
}
},200)