A batch for downloading all thing on SCUT e-online.

e-online.js

const jszipDom = document.createElement("script");
jszipDom.setAttribute("src", "https://cdn.bootcss.com/jszip/3.1.5/jszip.js");

const jszipUtilsDom = document.createElement("script");
jszipUtilsDom.setAttribute("src", "https://cdn.bootcss.com/jszip-utils/0.0.2/jszip-utils.min.js");

const fileSaverDom = document.createElement("script");
fileSaverDom.setAttribute("src", "https://cdn.bootcss.com/FileSaver.js/2014-11-29/FileSaver.js");

document.body.appendChild(jszipDom);
document.body.appendChild(jszipUtilsDom);
document.body.appendChild(fileSaverDom);

const listFrame = document.getElementById("mainFrame").contentDocument.getElementsByTagName("frame")[1];

console.log("Start after 5s...");
setTimeout(function () {
    console.info("Downloading...")

    const generate = function () {
        zip.generateAsync({
                type: "blob"
            }, function updateCallback(metadata) {
                let msg = "Packing...Progression : " + metadata.percent.toFixed(2) + " %";
                if (metadata.currentFile) {
                    msg += ", current file = " + metadata.currentFile;
                }
                console.log(msg);
            })
            .then(function callback(blob) {
                saveAs(blob, "zipped.zip");
                console.info("Done!");
            }, function (e) {
                console.error(e);
            });
    }

    let urlList = [];

    const zip = new JSZip();

    Array.from(listFrame.contentDocument.getElementsByClassName("common indentten")).map(
        e => {
            return {
                url: e.children[1].href.replace(/preview\/download_preview/, "download"),
                name: e.children[1].textContent.trim()
            }
        }).filter(e => {
        return !e.url.includes("folderid=");
    }).forEach((e, i, a) => {
        console.log(e.name + ": " + e.url);
        urlList.push(e);
    });

    let count = 0, total = urlList.length;
    (function downloadList() {
        if (urlList.length > 0) {
            let item = urlList.shift();
            fetch(item.url, {
                credentials: "include"
            }).then(response => {
                response.blob().then(blob => {
                    let extension = response.headers.get("content-disposition").match("\"(.*)\"")[1].split(".").pop();
                    item.name += "." + extension;
                    console.log("Downloaded(" + ++count + "/" + total + "): " + item.name);
                    zip.file(item.name, blob, {
                        binary: true
                    });
                    downloadList();
                }, e => {
                    console.error(e);
                })
            }, e => {
                console.error(e);
            })
        } else {
            generate();
        }
    })()
}, 5000);