Greasy Fork is available in English.
try to take over the world!
当前为
// ==UserScript==
// @name 文泉学堂PDF下载
// @namespace https://52pojie.cn
// @version 0.50
// @description try to take over the world!
// @author Culaccino
// @match https://*.wqxuetang.com/read/pdf/*
// @grant none
// @require https://cdn.staticfile.org/jspdf/1.5.3/jspdf.min.js
// @require https://cdn.staticfile.org/blueimp-md5/2.12.0/js/md5.min.js
// ==/UserScript==
(function() {
var imgBox, nowPage, allPage, doc, size, name, isStart = false, pageList = [],beginTime = new Date()
const baseURL = `https://${window.location.host}/`
if(baseURL.indexOf("www") > -1){window.location.href=window.location.href.replace("www","lib-nuanxin")}
const limitNum = [64655, 22471], limitMD5 = ["aba56eca9b49564cb47bce3f57bd14c2", "d9fff72044ac9a2726972b9dba58aa4e"]
const bid = window.location.href.replace(baseURL + "read/pdf/","")
const agent = navigator.userAgent
const headers = {
"headers": {
"User-Agent": agent,
"Accept": "*/*",
"Accept-Language": "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2",
"Cache-Control": "max-age=0"
},
"referrer": window.location.href,
"method": "GET"
}
Array.prototype.remove = function(val) {
const index = this.indexOf(val);
if (index > -1) {
this.splice(index, 1);
}
}
function print(){console.log(...arguments)}
//async function showInfo(v){
// let box = document.createElement("div")
// box.innerHTML = v
// box.setAttribute("style","display:inline-block;padding:8px 20px;position:fixed;top:0;left:50%;z-index:9999;color:#fff;background:#004DA9;border-radius:0 0 5px 5px;font-size:16px;")
// document.body.appendChild(box)
//}
function sleep (max,min) {
const time = !min ? max : Math.floor(Math.random() * (max - min + 1) ) + min;
print(time)
return new Promise((resolve) => setTimeout(resolve, time));
}
function imgCheck(c){
if(c.length in limitNum && md5(c) in limitMD5)
return false
return true
}
function addPDF(base64){
doc.addImage(base64, 'JPEG', 0, 0, size[0], size[1])
}
function savePDF(v){
doc.save(v.data.name + ".pdf")
print("总耗时 " + parseInt((new Date() - beginTime) / 1000 / 60) + " 分钟")
}
function getInfo(url){
const data = fetch(url, headers).then(function(res){
if(res.status >=200 && res.status <300){
return res.json();
}else{
getInfo(url)
}
})
data.then(v=>{savePDF(v)})
}
function getImg(num){
const base64 = imgBox[num].firstChild.getAttribute("src");
let img = new Image();
img.src = base64;
img.onload = async function(){
size = [img.width, img.height];
if(!isStart){
doc = new jsPDF(size[0] < size[1] ? "" : "l", 'pt', size)
isStart = !isStart
}
addPDF(base64)
if(num === allPage) {
getInfo("https://lib-nuanxin.wqxuetang.com/v1/read/initread?bid="+bid)
isStart = !isStart
return
}
doc.addPage()
getImg(num += 1)
}
}
async function autoScroll(num){
if(pageList.length === 0) {
Download()
return
}
if(pageList[num] === pageList[pageList.length - 1]) {
num = 0
}
print(pageList[num],num,pageList.length)
document.documentElement.scrollTop = imgBox[pageList[num]].offsetTop
await sleep(4000,6000)
let src = imgBox[pageList[num]].firstChild.getAttribute("src")
if(!src || src.indexOf("width=100") > -1 || !imgCheck(src)){
//print(pageList,src)
autoScroll(num += 1)
}else{
pageList.remove(pageList[num])
//print(pageList)
autoScroll(num)
}
}
function Download(){
getImg(nowPage)
}
window.onload = function(){
document.getElementById("pagebox").onclick = function(){
if(!isStart){
const numBox = document.getElementsByClassName("page-head-tol")[0].innerHTML
imgBox = document.getElementsByClassName("page-img-box")
nowPage = parseInt(numBox.slice(0, numBox.indexOf("/") - 1))
allPage = imgBox.length - 1
for(let i = nowPage;i <= allPage; i++) pageList.push(i)
autoScroll(0)
}else{
}
}
window.onbeforeunload=function(){
if(isStart) {
return "leave？";
}
}
}
})();