// ==UserScript==
// @name 爱教材下载猪手
// @namespace https://qinlili.bid
// @version 0.2
// @description 啊对对对
// @author 琴梨梨
// @match *://www.itextbook.cn/f/book/bookDetail?*
// @match *://itextbook.cn/f/book/bookDetail?*
// @icon http://www.itextbook.cn/static/web/images/favicon.ico
// @grant none
// @license WTFPL
// @run-at document-end
// ==/UserScript==
(function() {
'use strict';
//共享库
var SakiProgress = {
isLoaded: false,
progres: false,
pgDiv: false,
textSpan: false,
first: false,
alertMode: false,
init: function (color) {
if (!this.isLoaded) {
this.isLoaded = true;
console.info("SakiProgress Initializing!\nVersion:1.0.3\nQinlili Tech:Github@qinlili23333");
this.pgDiv = document.createElement("div");
this.pgDiv.id = "pgdiv";
this.pgDiv.style = "z-index:9999;position:fixed;background-color:white;min-height:32px;width:auto;height:32px;left:0px;right:0px;top:0px;box-shadow:0px 2px 2px 1px rgba(0, 0, 0, 0.5);transition:opacity 0.5s;display:none;";
this.pgDiv.style.opacity = 0;
this.first = document.body.firstElementChild;
document.body.insertBefore(this.pgDiv, this.first);
this.first.style.transition = "margin-top 0.5s"
this.progress = document.createElement("div");
this.progress.id = "dlprogress"
this.progress.style = "position: absolute;top: 0;bottom: 0;left: 0;background-color: #F17C67;z-index: -1;width:0%;transition: width 0.25s ease-in-out,opacity 0.25s,background-color 1s;"
if (color) {
this.setColor(color);
}
this.pgDiv.appendChild(this.progress);
this.textSpan = document.createElement("span");
this.textSpan.style = "padding-left:4px;font-size:24px;";
this.textSpan.style.display = "inline-block"
this.pgDiv.appendChild(this.textSpan);
var css = ".barBtn:hover{ background-color: #cccccc }.barBtn:active{ background-color: #999999 }";
var style = document.createElement('style');
if (style.styleSheet) {
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
document.getElementsByTagName('head')[0].appendChild(style);
console.info("SakiProgress Initialized!");
} else {
console.error("Multi Instance Error-SakiProgress Already Loaded!");
}
},
destroy: function () {
if (this.pgDiv) {
document.body.removeChild(this.pgDiv);
this.isLoaded = false;
this.progres = false;
this.pgDiv = false;
this.textSpan = false;
this.first = false;
console.info("SakiProgress Destroyed!You Can Reload Later!");
}
},
setPercent: function (percent) {
if (this.progress) {
this.progress.style.width = percent + "%";
} else {
console.error("Not Initialized Error-Please Call `init` First!");
}
},
clearProgress: function () {
if (this.progress) {
this.progress.style.opacity = 0;
setTimeout(function () { SakiProgress.progress.style.width = "0%"; }, 500);
setTimeout(function () { SakiProgress.progress.style.opacity = 1; }, 750);
} else {
console.error("Not Initialized Error-Please Call `init` First!")
}
},
hideDiv: function () {
if (this.pgDiv) {
if (this.alertMode) {
setTimeout(function () {
SakiProgress.pgDiv.style.opacity = 0;
SakiProgress.first.style.marginTop = "";
setTimeout(function () {
SakiProgress.pgDiv.style.display = "none";
}, 500);
}, 3000);
} else {
this.pgDiv.style.opacity = 0;
this.first.style.marginTop = "";
setTimeout(function () {
SakiProgress.pgDiv.style.display = "none";
}, 500);
}
}
else {
console.error("Not Initialized Error-Please Call `init` First!");
}
},
showDiv: function () {
if (this.pgDiv) {
this.pgDiv.style.display = "";
setTimeout(function () { SakiProgress.pgDiv.style.opacity = 1; }, 10);
this.first.style.marginTop = (this.pgDiv.clientHeight + 8) + "px";
}
else {
console.error("Not Initialized Error-Please Call `init` First!");
}
},
setText: function (text) {
if (this.textSpan) {
if (this.alertMode) {
setTimeout(function () {
if (!SakiProgress.alertMode) {
SakiProgress.textSpan.innerText = text;
}
}, 3000);
} else {
this.textSpan.innerText = text;
}
}
else {
console.error("Not Initialized Error-Please Call `init` First!");
}
},
setTextAlert: function (text) {
if (this.textSpan) {
this.textSpan.innerText = text;
this.alertMode = true;
setTimeout(function () { this.alertMode = false; }, 3000);
}
else {
console.error("Not Initialized Error-Please Call `init` First!");
}
},
setColor: function (color) {
if (this.progress) {
this.progress.style.backgroundColor = color;
}
else {
console.error("Not Initialized Error-Please Call `init` First!");
}
},
addBtn: function (img) {
if (this.pgDiv) {
var btn = document.createElement("img");
btn.style = "display: inline-block;right:0px;float:right;height:32px;width:32px;transition:background-color 0.2s;"
btn.className = "barBtn"
btn.src = img;
this.pgDiv.appendChild(btn);
return btn;
}
else {
console.error("Not Initialized Error-Please Call `init` First!");
}
},
removeBtn: function (btn) {
if (this.pgDiv) {
if (btn) {
this.pgDiv.removeChild(btn);
}
}
else {
console.error("Not Initialized Error-Please Call `init` First!");
}
}
}
var XHRDL = {
isLoaded: false,
dlList: [],
listBtn: false,
listDiv: false,
listBar: false,
clsBtn: false,
init: function () {
if (!this.isLoaded) {
console.info("WebXHRDL Initializing!\nVersion:Preview0.1.0\nQinlili Tech:Github@qinlili23333")
try {
SakiProgress.init();
} catch{
console.error("Initialize Failed!Is SakiProgress Loaded?")
return false;
}
this.isLoaded = true;
this.listBtn = SakiProgress.addBtn("data:image/svg+xml;base64,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");
this.listBtn.onclick = XHRDL.showList;
SakiProgress.showDiv();
SakiProgress.setText("初始化下载器...");
SakiProgress.setPercent(20);
this.listDiv = document.createElement("div");
this.listDiv.style = "z-index:9999;position:fixed;background-color:white;width:auto;margin-top:32px;height:100%;left:0px;right:0px;top:0px;transition:opacity 0.5s;display:none;";
this.listDiv.style.opacity = 0;
this.listBar = document.createElement("div");
this.listBar.style = "z-index:10000;position:fixed;background-color:white;min-height:32px;margin-top:32px;width:auto;height:32px;left:0px;right:0px;top:0px;box-shadow:0px 2px 2px 1px rgba(0, 0, 0, 0.5);";
this.listDiv.appendChild(this.listBar);
document.body.appendChild(this.listDiv);
var btn = document.createElement("img");
btn.style = "display: inline-block;right:0px;float:right;height:32px;width:32px;transition:background-color 0.2s;"
btn.className = "barBtn"
btn.src = "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDI0IDI0IiBoZWlnaHQ9IjQ4cHgiIHZpZXdCb3g9IjAgMCAyNCAyNCIgd2lkdGg9IjQ4cHgiIGZpbGw9IiMwMDAwMDAiPjxyZWN0IGZpbGw9Im5vbmUiIGhlaWdodD0iMjQiIHdpZHRoPSIyNCIvPjxwYXRoIGQ9Ik0yMiwzLjQxbC01LjI5LDUuMjlMMjAsMTJoLThWNGwzLjI5LDMuMjlMMjAuNTksMkwyMiwzLjQxeiBNMy40MSwyMmw1LjI5LTUuMjlMMTIsMjB2LThINGwzLjI5LDMuMjlMMiwyMC41OUwzLjQxLDIyeiIvPjwvc3ZnPg==";
this.listBar.appendChild(btn);
btn.onclick = function () {
XHRDL.hideList();
}
this.clsBtn = btn;
SakiProgress.setPercent(100);
SakiProgress.setText("下载器已加载！");
setTimeout(function () { SakiProgress.clearProgress(); SakiProgress.hideDiv(); }, 1000);
console.info("WebXHRDL Initialized!");
} else {
console.error("Multi Instance Error-WebXHRDL Already Loaded!")
}
},
destroy: function (saki) {
if (this.isLoaded) {
if (saki) {
SakiProgress.destroy();
}
this.isLoaded = false;
this.dlList = [];
this.listBtn = false;
this.listDiv = false;
this.listBar = false;
this.clsBtn = false;
console.info("WebXHRDL Destroyed!You Can Reload Later!");
}
},
showList: function () {
if (XHRDL.isLoaded) {
XHRDL.listDiv.style.display = "";
setTimeout(function () { XHRDL.listDiv.style.opacity = 1; }, 10);
} else {
console.error("Not Initialized Error-Please Call `init` First!")
}
},
hideList: function () {
if (XHRDL.isLoaded) {
XHRDL.listDiv.style.opacity = 0;
setTimeout(function () { XHRDL.listDiv.style.display = "none"; }, 500);
} else {
console.error("Not Initialized Error-Please Call `init` First!")
}
},
saveTaskList: function () {
if (XHRDL.isLoaded) {
var storage = window.localStorage;
storage.setItem("XHRDL_List", JSON.stringify(this.dlList));
} else {
console.error("Not Initialized Error-Please Call `init` First!")
}
},
loadTaskList: function () {
if (XHRDL.isLoaded) {
var storage = window.localStorage;
this.dlList = JSON.parse(storage.getItem("XHRDL_List"));
} else {
console.error("Not Initialized Error-Please Call `init` First!")
}
},
newTask: function (url, name) {
if (this.isLoaded) {
var list = this.dlList;
list[list.length] = {
taskUrl: url,
fileName: name
}
SakiProgress.showDiv();
SakiProgress.setText("已添加新任务：" + name);
if (!this.DLEngine.isWorking) {
this.DLEngine.start();
}
} else {
console.error("Not Initialized Error-Please Call `init` First!")
}
},
DLEngine: {
isWorking: false,
start: function () {
if (!this.isWorking) {
console.info("Start WebXHRDL Engine...\nChecking Tasks...");
this.isWorking = true;
SakiProgress.showDiv();
this.dlFirstFile();
} else {
console.error("WebXHRDL Engine Already Started!");
}
},
stop: function () {
this.isWorking = false;
SakiProgress.hideDiv();
SakiProgress.setText("");
if (XHRDL.dlList[0]) {
console.info("All Tasks Done!WebXHRDL Engine Stopped!");
} else {
console.info("WebXHRDL Engine Stopped!Tasks Paused!");
}
},
dlFirstFile: function () {
var taskInfo = XHRDL.dlList[0];
SakiProgress.showDiv();
SakiProgress.setPercent(0);
SakiProgress.setText("正在下载" + taskInfo.fileName);
var xhr = new XMLHttpRequest();
xhr.responseType = "blob";
xhr.onprogress = event => {
if (event.loaded && event.total) {
var percent = String(Number(event.loaded) / Number(event.total) * 100).substring(0, 4);
SakiProgress.setText(taskInfo.fileName + "已下载" + percent + "%");
SakiProgress.setPercent(percent)
}
};
xhr.onload = event => {
if (xhr.readyState === 4) {
if (xhr.status === 200) {
var bloburl = URL.createObjectURL(xhr.response);
SakiProgress.setText("正在写出" + taskInfo.fileName);
var a = document.createElement('a');
var filename = taskInfo.fileName;
a.href = bloburl;
a.download = filename;
a.click();
window.URL.revokeObjectURL(bloburl);
SakiProgress.clearProgress();
XHRDL.dlList.splice(0, 1);
XHRDL.DLEngine.checkNext();
} else {
//TODO:支持更多特殊状态处理
SakiProgress.setTextAlert(taskInfo.fileName + "暂不支持下载，跳过");
XHRDL.dlList.splice(0, 1);
XHRDL.DLEngine.checkNext();
}
}
}
xhr.onerror = function (e) {
//TODO:支持处理不同类别出错
if(!taskInfo.errorRetry){
SakiProgress.setTextAlert(taskInfo.fileName + "下载失败，置入列尾等待重试");
taskInfo.errorRetry = true;
var list = XHRDL.dlList;
list[list.length] = taskInfo;
}else{
SakiProgress.setTextAlert(taskInfo.fileName + "下载又失败了，放弃");
}
XHRDL.dlList.splice(0, 1);
XHRDL.DLEngine.checkNext();
}
xhr.open('GET', taskInfo.taskUrl,true)
xhr.send()
},
checkNext: function () {
if (XHRDL.dlList[0]) {
this.dlFirstFile();
} else {
this.stop();
}
}
}
}
XHRDL.init();
document.getElementsByClassName("status-2")[0].innerText="下载"
document.getElementsByClassName("status")[0].onclick=function(){
var functionStr=window["authorityToJudge"].toString();
var dlUrl=document.location.origin+"/f/cdf/file?"+functionStr.substr(functionStr.indexOf("cdf="),functionStr.indexOf("&read")-functionStr.indexOf("cdf=")).replace("cdf=","file=")
XHRDL.newTask(dlUrl,document.getElementsByClassName("book_name")[0].title+".pdf")
}
})();
