// ==UserScript==
// @name 万门大学课程视频批量下载
// @namespace http://tampermonkey.net/
// @version 1.0
// @description 只能批量下载免费的或者已经购买的课程
// @author none
// @match https://www.wanmen.org/courses/*
// @grant none
// ==/UserScript==
// 本文件由 src/index.ts 生成，请修改 src/index.ts 后执行 yarn build 生成，勿直接修改此文件。
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
function getChapterElements() {
return document.querySelector("#root > div.course__course-page--3J8Sy > div.course__video-row--20SaE > div.course__playlist-container--17tSE > div.components__container--1fgQp > div > div:nth-child(1) > ul");
}
function checkClientStatus() {
return __awaiter(this, void 0, void 0, function* () {
try {
let response = yield fetch("http://localhost:5678/status", {
method: "get",
mode: "cors",
});
if (!response.ok) {
throw Error(response.statusText);
}
return true;
}
catch (error) {
alert("客户端未启动，请启动客户端之后再开始");
return false;
}
});
}
function sleep(ms) {
return __awaiter(this, void 0, void 0, function* () {
return new Promise((resolve) => setTimeout(resolve, ms));
});
}
function waitValue({ predicate, waitInterval, timeout, timeoutRetry, }) {
return __awaiter(this, void 0, void 0, function* () {
let value = null;
let waitTime = 0;
do {
value = yield predicate();
yield sleep(waitInterval);
waitTime += waitInterval;
if (typeof timeout !== "undefined" && waitTime >= timeout) {
timeoutRetry === null || timeoutRetry === void 0 ? void 0 : timeoutRetry();
waitTime = 0;
}
} while (!value);
return value;
});
}
function addTask() {
return __awaiter(this, void 0, void 0, function* () {
if (!(yield checkClientStatus())) {
return;
}
const cptEles = getChapterElements();
if (!cptEles) {
alert("未获取到课程列表");
return;
}
const courseName = prompt("请输入课程名称", document.title);
if (!courseName) {
alert("课程名称不能为空");
return;
}
const chapters = [];
for (let chapterElement = cptEles.firstElementChild, cptIdx = 1; chapterElement; chapterElement = chapterElement.nextElementSibling, cptIdx++) {
const subChapterTitle = chapterElement.querySelector("div");
if (!subChapterTitle) {
continue;
}
if (subChapterTitle.className.indexOf("presentation") < 0) {
subChapterTitle.click();
}
else {
continue;
}
const subChapters = yield waitValue({
predicate: () => __awaiter(this, void 0, void 0, function* () { return chapterElement.querySelector("ul"); }),
waitInterval: 50,
timeout: 2000,
timeoutRetry: () => subChapterTitle.click(),
});
for (let subCptEle = subChapters.firstElementChild; subCptEle; subCptEle = subCptEle.nextElementSibling) {
const anchor = subCptEle.querySelector("a");
if (anchor) {
chapters.push({
Link: anchor.href,
Name: anchor.innerText.split("\n")[0],
});
}
}
subChapterTitle.click();
}
try {
let addResponse = yield fetch("http://localhost:5678/add", {
method: "post",
mode: "cors",
body: JSON.stringify({
Name: courseName,
chapters,
}),
});
if (!addResponse.ok) {
throw new Error(addResponse.statusText);
}
}
catch (error) {
alert("已将任务发送到客户端，处理中...");
}
});
}
function getM3u8Source() {
var _a;
return __awaiter(this, void 0, void 0, function* () {
return (_a = document.querySelector("video > source")) === null || _a === void 0 ? void 0 : _a.getAttribute("src");
});
}
function finishTask() {
return __awaiter(this, void 0, void 0, function* () {
const source = yield waitValue({
predicate: getM3u8Source,
waitInterval: 100,
});
try {
const m3u8Response = yield fetch(source, {
method: "get",
});
const m3u8Content = yield m3u8Response.text();
let saveResponse = yield fetch("http://localhost:5678/finish", {
method: "post",
mode: "cors",
body: JSON.stringify({
Link: document.location.href,
Content: m3u8Content,
}),
});
if (!saveResponse.ok) {
throw Error(saveResponse.statusText);
}
}
catch (error) {
console.log(error);
return;
}
});
}
function getTask() {
return __awaiter(this, void 0, void 0, function* () {
while (true) {
try {
let taskResponse = yield fetch("http://localhost:5678/get", {
method: "get",
mode: "cors",
});
if (!taskResponse.ok) {
throw Error(taskResponse.statusText);
}
else {
const link = yield taskResponse.text();
if (link) {
document.location.replace(link);
}
}
}
catch (error) {
console.log("未获取到任务：" + error);
}
yield sleep(5000);
}
});
}
function main() {
return __awaiter(this, void 0, void 0, function* () {
let startBtn = document.createElement("button");
startBtn.onclick = addTask;
startBtn.innerText = "添加任务";
startBtn.setAttribute("style", "position: fixed;top: 50%;left:0;");
document.body.appendChild(startBtn);
yield finishTask();
getTask();
});
}
main();
