超星慕课资源下载提取
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// ==UserScript==
// @name chaoxing-download
// @namespace http://tampermonkey.net/
// @version 0.4.2
// @description 超星慕课资源下载提取
// @author NL
// @match https://*.chaoxing.com/mycourse/studentstudy?*
// @grant none
// ==/UserScript==
function setDl(){
console.log('set dl was called')
var iframes = document.getElementById("iframe").contentWindow.document.querySelectorAll("iframe")
for(let i=0;i<iframes.length;i++){
if(iframes[i].getAttribute("objectId")==null){
continue
}
var url = "https://cs-ans.chaoxing.com/download/"+iframes[i].getAttribute("objectId")
var a = document.createElement('a');
a.setAttribute('href', url);
a.setAttribute('class','downloadable-content')
a.setAttribute('style', "display:block");
a.setAttribute('target','_blank')
var textnode=document.createTextNode("↓下载课件")
a.appendChild(textnode)
if(iframes[i].parentElement.getElementsByClassName('downloadable-content').length==0){
iframes[i].parentNode.insertBefore(a,iframes[i])
console.log("inserted"+i)
} else {//console.log('inserted already')
//console.log(iframes[i].parentElement.getElementsByClassName('downloadable-content'))
}
}
}
(function() {
'use strict';
var old_text = "";
console.log("downloader script running:");
setTimeout(function (){
old_text = document.getElementsByTagName("h1")[0].innerHTML;
document.getElementsByTagName("h1")[0].innerHTML += "--->Waiting";
},500);
setTimeout(function(){
var parent_node = document.getElementsByClassName("goback")[0]
var bt = document.createElement("button")
bt.innerHTML = "刷新下载"
bt.onclick = function(){setDl()}
parent_node.appendChild(bt)
},500);
setTimeout(function(){
document.getElementsByTagName("h1")[0].innerHTML = old_text
//setDl()
setInterval(setDl,2000)
},1500);
// Your code here...
})();