☰

学习强国梨酱小帮手

页面内登录(不可用)/搜索+视频/音频/电子书一键批量下载+拦截Log请求+电子书去水印

  1. // ==UserScript==
  2. // @name         学习强国梨酱小帮手
  3. // @namespace    https://qinlili.bid/
  4. // @version      1.1.8
  5. // @description  页面内登录(不可用)/搜索+视频/音频/电子书一键批量下载+拦截Log请求+电子书去水印
  6. // @author       琴梨梨
  7. // @match        *://www.xuexi.cn/*
  8. // @match        *://boot-source.xuexi.cn/newmoocdown?*
  9. // @match        *://boot-source.xuexi.cn/audiodown?*
  10. // @match        *://preview-pdf.xuexi.cn/*
  11. // @match        *://article.xuexi.cn/*
  12. // @match        https://login.xuexi.cn/login/xuexiWeb?*
  13. // @match        https://static.xuexi.cn/search/*
  14. // @icon         https://www.xuexi.cn/favicon.ico
  15. // @homepage     https://github.com/qinlili23333/XXQG-DL
  16. // @supportURL   https://github.com/qinlili23333/XXQG-DL
  17. // @grant        none
  18. // @run-at       document-end
  19. // @require      https://lib.baomitu.com/jspdf/2.5.1/jspdf.umd.min.js
  20. // @license      Anti996License
  21. // ==/UserScript==
  22.  
  23.  
  24. (async function () {
  25.     'use strict';
  26.     //既然连喜欢的人都没能力留住，那还是把更多时间投入到写代码吧--记于与悦悦子分手的7天之后（2022.1.11）
  27.     //这些内容给本项目开发提供了帮助，感谢
  28.     //https://stackoverflow.com/a/60644673
  29.     //https://stackoverflow.com/a/55165133
  30.     //也感谢每一位相信琴梨梨的用户
  31.  
  32.     //真的有人会看琴梨梨写的注释吗？在看的话MUA你一下~
  33.  
  34.     //是否开启跨源服务器
  35.     //开启跨源服务器可以下载部分本来会出错的电子书
  36.     //请访问此地址获取跨源服务器https://github.com/Rob--W/cors-anywhere
  37.     //Clone到本地后运行npm install，然后运行node server.js，即可运行在默认地址和端口上
  38.     var corsServer = "http://localhost:8080/";
  39.     if (document.location.host == "preview-pdf.xuexi.cn" && (document.location.search.indexOf("boot-video.xuexi.cn") > 1) && (window.self === window.top) && confirm("该地址可能需要跨源服务器下载。启用跨源服务器吗？请在确认跨源服务器已启动之后点击确定。\n不知道跨源服务器是什么的话打开脚本源码看注释")) {
  40.         var valueProp = Object.getOwnPropertyDescriptor(Image.prototype, 'src');
  41.         Object.defineProperty(Image.prototype, 'src', {
  42.             set: function(newimgValue){
  43.                 if (!newimgValue.startsWith("data:")) {
  44.                     newimgValue = corsServer + newimgValue;
  45.                 }
  46.                 this.crossOrigin = "anonymous"
  47.                 valueProp.set.call(this, newimgValue);
  48.             }
  49.         });
  50.     }
  51.     //iframe页面处理
  52.     if (!(window.self === window.top)) {
  53.         var transparentStyle = "background:none transparent !important;";
  54.         document.documentElement.style = transparentStyle;
  55.         document.body.style = transparentStyle;
  56.         if (document.location.href.indexOf("login.xuexi.cn/login/xuexiWeb?") > 1) {
  57.             document.getElementsByClassName("login_content")[0].style.background = "none"
  58.         };
  59.         if (document.location.href.indexOf("static.xuexi.cn/search/online/index.html") > 1) {
  60.             document.getElementById("root").style.background = transparentStyle;
  61.             if ((window.self.innerWidth > window.self.innerHeight) && window.self.innerWidth > 1000) {
  62.                 document.getElementsByClassName("search-content")[0].style = "padding-left:20px;padding-right:20px;"
  63.             }
  64.         };
  65.     }
  66.     //干掉日志
  67.     (open=> {
  68.         XMLHttpRequest.prototype.open = function (method, url, async, user, pass) {
  69.             if (!(async === false)) {
  70.                 async = true;
  71.             };
  72.             if (url.startsWith("https://iflow-api.xuexi.cn/logflow/api/v1/pclog") || url.startsWith("https://arms-retcode.aliyuncs.com/r.png")) {
  73.                 console.log("Rejected Log XHR! " + url + " -Qinlili")
  74.                 url = "data:text,null"
  75.             }
  76.             open.call(this, method, url, async, user, pass);
  77.         };
  78.     })(XMLHttpRequest.prototype.open);
  79.     var originFetch = fetch;
  80.     window.fetch = (url, options) => {
  81.         if (url.startsWith("https://iflow-api.xuexi.cn/logflow/api/v1/pclog") || url.startsWith("https://arms-retcode.aliyuncs.com/r.png")) {
  82.             console.log("Rejected Log Fetch! " + url + " -Qinlili")
  83.             url = "data:text,null"
  84.         }
  85.         return originFetch(url, options);
  86.     }
  87.     //干掉PDF水印
  88.     if (document.location.host == "preview-pdf.xuexi.cn") {
  89.         CanvasRenderingContext2D.prototype.fillText = () => { }
  90.     }
  91.     //共享库
  92.     const SakiProgress = {
  93.         isLoaded: false,
  94.         progres: false,
  95.         pgDiv: false,
  96.         textSpan: false,
  97.         first: false,
  98.         alertMode: false,
  99.         init: function (color) {
  100.             if (!this.isLoaded) {
  101.                 this.isLoaded = true;
  102.                 console.info("SakiProgress Initializing!\nVersion:1.0.3\nQinlili Tech:Github@qinlili23333");
  103.                 this.pgDiv = document.createElement("div");
  104.                 this.pgDiv.id = "pgdiv";
  105.                 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;";
  106.                 this.pgDiv.style.opacity = 0;
  107.                 this.first = document.body.firstElementChild;
  108.                 document.body.insertBefore(this.pgDiv, this.first);
  109.                 this.first.style.transition = "margin-top 0.5s"
  110.                 this.progress = document.createElement("div");
  111.                 this.progress.id = "dlprogress"
  112.                 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;"
  113.                 if (color) {
  114.                     this.setColor(color);
  115.                 }
  116.                 this.pgDiv.appendChild(this.progress);
  117.                 this.textSpan = document.createElement("span");
  118.                 this.textSpan.style = "padding-left:4px;font-size:24px;";
  119.                 this.textSpan.style.display = "inline-block"
  120.                 this.pgDiv.appendChild(this.textSpan);
  121.                 var css = ".barBtn:hover{ background-color: #cccccc }.barBtn:active{ background-color: #999999 }";
  122.                 var style = document.createElement('style');
  123.                 if (style.styleSheet) {
  124.                     style.styleSheet.cssText = css;
  125.                 } else {
  126.                     style.appendChild(document.createTextNode(css));
  127.                 }
  128.                 document.getElementsByTagName('head')[0].appendChild(style);
  129.                 console.info("SakiProgress Initialized!");
  130.             } else {
  131.                 console.error("Multi Instance Error-SakiProgress Already Loaded!");
  132.             }
  133.         },
  134.         destroy: function () {
  135.             if (this.pgDiv) {
  136.                 document.body.removeChild(this.pgDiv);
  137.                 this.isLoaded = false;
  138.                 this.progres = false;
  139.                 this.pgDiv = false;
  140.                 this.textSpan = false;
  141.                 this.first = false;
  142.                 console.info("SakiProgress Destroyed!You Can Reload Later!");
  143.             }
  144.         },
  145.         setPercent: function (percent) {
  146.             if (this.progress) {
  147.                 this.progress.style.width = percent + "%";
  148.             } else {
  149.                 console.error("Not Initialized Error-Please Call `init` First!");
  150.             }
  151.         },
  152.         clearProgress: function () {
  153.             if (this.progress) {
  154.                 this.progress.style.opacity = 0;
  155.                 setTimeout(function () { SakiProgress.progress.style.width = "0%"; }, 500);
  156.                 setTimeout(function () { SakiProgress.progress.style.opacity = 1; }, 750);
  157.             } else {
  158.                 console.error("Not Initialized Error-Please Call `init` First!")
  159.             }
  160.         },
  161.         hideDiv: function () {
  162.             if (this.pgDiv) {
  163.                 if (this.alertMode) {
  164.                     setTimeout(function () {
  165.                         SakiProgress.pgDiv.style.opacity = 0;
  166.                         SakiProgress.first.style.marginTop = "";
  167.                         setTimeout(function () {
  168.                             SakiProgress.pgDiv.style.display = "none";
  169.                         }, 500);
  170.                     }, 3000);
  171.                 } else {
  172.                     this.pgDiv.style.opacity = 0;
  173.                     this.first.style.marginTop = "";
  174.                     setTimeout(function () {
  175.                         SakiProgress.pgDiv.style.display = "none";
  176.                     }, 500);
  177.                 }
  178.             }
  179.             else {
  180.                 console.error("Not Initialized Error-Please Call `init` First!");
  181.             }
  182.         },
  183.         showDiv: function () {
  184.             if (this.pgDiv) {
  185.                 this.pgDiv.style.display = "";
  186.                 setTimeout(function () { SakiProgress.pgDiv.style.opacity = 1; }, 10);
  187.                 this.first.style.marginTop = (this.pgDiv.clientHeight + 8) + "px";
  188.             }
  189.             else {
  190.                 console.error("Not Initialized Error-Please Call `init` First!");
  191.             }
  192.         },
  193.         setText: function (text) {
  194.             if (this.textSpan) {
  195.                 if (this.alertMode) {
  196.                     setTimeout(function () {
  197.                         if (!SakiProgress.alertMode) {
  198.                             SakiProgress.textSpan.innerText = text;
  199.                         }
  200.                     }, 3000);
  201.                 } else {
  202.                     this.textSpan.innerText = text;
  203.                 }
  204.             }
  205.             else {
  206.                 console.error("Not Initialized Error-Please Call `init` First!");
  207.             }
  208.         },
  209.         setTextAlert: function (text) {
  210.             if (this.textSpan) {
  211.                 this.textSpan.innerText = text;
  212.                 this.alertMode = true;
  213.                 setTimeout(function () { this.alertMode = false; }, 3000);
  214.             }
  215.             else {
  216.                 console.error("Not Initialized Error-Please Call `init` First!");
  217.             }
  218.         },
  219.         setColor: function (color) {
  220.             if (this.progress) {
  221.                 this.progress.style.backgroundColor = color;
  222.             }
  223.             else {
  224.                 console.error("Not Initialized Error-Please Call `init` First!");
  225.             }
  226.         },
  227.         addBtn: function (img) {
  228.             if (this.pgDiv) {
  229.                 var btn = document.createElement("img");
  230.                 btn.style = "display: inline-block;right:0px;float:right;height:32px;width:32px;transition:background-color 0.2s;"
  231.                 btn.className = "barBtn"
  232.                 btn.src = img;
  233.                 this.pgDiv.appendChild(btn);
  234.                 return btn;
  235.             }
  236.             else {
  237.                 console.error("Not Initialized Error-Please Call `init` First!");
  238.             }
  239.         },
  240.         removeBtn: function (btn) {
  241.             if (this.pgDiv) {
  242.                 if (btn) {
  243.                     this.pgDiv.removeChild(btn);
  244.                 }
  245.             }
  246.             else {
  247.                 console.error("Not Initialized Error-Please Call `init` First!");
  248.             }
  249.         }
  250.     }
  251.     const XHRDL = {
  252.         isLoaded: false,
  253.         dlList: [],
  254.         listBtn: false,
  255.         listDiv: false,
  256.         listBar: false,
  257.         clsBtn: false,
  258.         init: function () {
  259.             if (!this.isLoaded) {
  260.                 console.info("WebXHRDL Initializing!\nVersion:Preview0.1.0\nQinlili Tech:Github@qinlili23333")
  261.                 try {
  262.                     SakiProgress.init();
  263.                 } catch {
  264.                     console.error("Initialize Failed!Is SakiProgress Loaded?")
  265.                     return false;
  266.                 }
  267.                 this.isLoaded = true;
  268.                 //this.listBtn = SakiProgress.addBtn("data:image/svg+xml;base64,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");
  269.                 //this.listBtn.onclick = XHRDL.showList;
  270.                 SakiProgress.showDiv();
  271.                 SakiProgress.setText("初始化下载器...");
  272.                 SakiProgress.setPercent(20);
  273.                 this.listDiv = document.createElement("div");
  274.                 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;";
  275.                 this.listDiv.style.opacity = 0;
  276.                 this.listBar = document.createElement("div");
  277.                 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);";
  278.                 this.listDiv.appendChild(this.listBar);
  279.                 document.body.appendChild(this.listDiv);
  280.                 var btn = document.createElement("img");
  281.                 btn.style = "display: inline-block;right:0px;float:right;height:32px;width:32px;transition:background-color 0.2s;"
  282.                 btn.className = "barBtn"
  283.                 btn.src = "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDI0IDI0IiBoZWlnaHQ9IjQ4cHgiIHZpZXdCb3g9IjAgMCAyNCAyNCIgd2lkdGg9IjQ4cHgiIGZpbGw9IiMwMDAwMDAiPjxyZWN0IGZpbGw9Im5vbmUiIGhlaWdodD0iMjQiIHdpZHRoPSIyNCIvPjxwYXRoIGQ9Ik0yMiwzLjQxbC01LjI5LDUuMjlMMjAsMTJoLThWNGwzLjI5LDMuMjlMMjAuNTksMkwyMiwzLjQxeiBNMy40MSwyMmw1LjI5LTUuMjlMMTIsMjB2LThINGwzLjI5LDMuMjlMMiwyMC41OUwzLjQxLDIyeiIvPjwvc3ZnPg==";
  284.                 this.listBar.appendChild(btn);
  285.                 btn.onclick = function () {
  286.                     XHRDL.hideList();
  287.                 }
  288.                 this.clsBtn = btn;
  289.                 SakiProgress.setPercent(100);
  290.                 SakiProgress.setText("下载器已加载！");
  291.                 setTimeout(function () { SakiProgress.clearProgress(); SakiProgress.hideDiv(); }, 1000);
  292.                 console.info("WebXHRDL Initialized!");
  293.             } else {
  294.                 console.error("Multi Instance Error-WebXHRDL Already Loaded!")
  295.             }
  296.         },
  297.         destroy: function (saki) {
  298.             if (this.isLoaded) {
  299.                 if (saki) {
  300.                     SakiProgress.destroy();
  301.                 }
  302.                 this.isLoaded = false;
  303.                 this.dlList = [];
  304.                 this.listBtn = false;
  305.                 this.listDiv = false;
  306.                 this.listBar = false;
  307.                 this.clsBtn = false;
  308.                 console.info("WebXHRDL Destroyed!You Can Reload Later!");
  309.             }
  310.         },
  311.         showList: function () {
  312.             if (XHRDL.isLoaded) {
  313.                 XHRDL.listDiv.style.display = "";
  314.                 setTimeout(function () { XHRDL.listDiv.style.opacity = 1; }, 10);
  315.             } else {
  316.                 console.error("Not Initialized Error-Please Call `init` First!")
  317.             }
  318.         },
  319.         hideList: function () {
  320.             if (XHRDL.isLoaded) {
  321.                 XHRDL.listDiv.style.opacity = 0;
  322.                 setTimeout(function () { XHRDL.listDiv.style.display = "none"; }, 500);
  323.             } else {
  324.                 console.error("Not Initialized Error-Please Call `init` First!")
  325.             }
  326.         },
  327.         saveTaskList: function () {
  328.             if (XHRDL.isLoaded) {
  329.                 var storage = window.localStorage;
  330.                 storage.setItem("XHRDL_List", JSON.stringify(this.dlList));
  331.             } else {
  332.                 console.error("Not Initialized Error-Please Call `init` First!")
  333.             }
  334.         },
  335.         loadTaskList: function () {
  336.             if (XHRDL.isLoaded) {
  337.                 var storage = window.localStorage;
  338.                 this.dlList = JSON.parse(storage.getItem("XHRDL_List"));
  339.             } else {
  340.                 console.error("Not Initialized Error-Please Call `init` First!")
  341.             }
  342.         },
  343.         newTask: function (url, name) {
  344.             if (this.isLoaded) {
  345.                 var list = this.dlList;
  346.                 list[list.length] = {
  347.                     taskUrl: url,
  348.                     fileName: name
  349.                 }
  350.                 SakiProgress.showDiv();
  351.                 SakiProgress.setText("已添加新任务：" + name);
  352.                 if (!this.DLEngine.isWorking) {
  353.                     this.DLEngine.start();
  354.                 }
  355.             } else {
  356.                 console.error("Not Initialized Error-Please Call `init` First!")
  357.             }
  358.         },
  359.         DLEngine: {
  360.             isWorking: false,
  361.             start: function () {
  362.                 if (!this.isWorking) {
  363.                     console.info("Start WebXHRDL Engine...\nChecking Tasks...");
  364.                     this.isWorking = true;
  365.                     SakiProgress.showDiv();
  366.                     this.dlFirstFile();
  367.                 } else {
  368.                     console.error("WebXHRDL Engine Already Started!");
  369.                 }
  370.             },
  371.             stop: function () {
  372.                 this.isWorking = false;
  373.                 SakiProgress.hideDiv();
  374.                 SakiProgress.setText("");
  375.                 if (XHRDL.dlList[0]) {
  376.                     console.info("All Tasks Done!WebXHRDL Engine Stopped!");
  377.                 } else {
  378.                     console.info("WebXHRDL Engine Stopped!Tasks Paused!");
  379.                 }
  380.             },
  381.             dlFirstFile: function () {
  382.                 var taskInfo = XHRDL.dlList[0];
  383.                 SakiProgress.showDiv();
  384.                 SakiProgress.setPercent(0);
  385.                 SakiProgress.setText("正在下载" + taskInfo.fileName);
  386.                 var xhr = new XMLHttpRequest();
  387.                 xhr.responseType = "blob";
  388.                 xhr.onprogress = event => {
  389.                     if (event.loaded && event.total) {
  390.                         var percent = String(Number(event.loaded) / Number(event.total) * 100).substring(0, 4);
  391.                         SakiProgress.setText(taskInfo.fileName + "已下载" + percent + "%");
  392.                         SakiProgress.setPercent(percent)
  393.                     }
  394.                 };
  395.                 xhr.onload = event => {
  396.                     if (xhr.readyState === 4) {
  397.                         if (xhr.status === 200) {
  398.                             var bloburl = URL.createObjectURL(xhr.response);
  399.                             SakiProgress.setText("正在写出" + taskInfo.fileName);
  400.                             var a = document.createElement('a');
  401.                             var filename = taskInfo.fileName;
  402.                             a.href = bloburl;
  403.                             a.download = filename;
  404.                             a.click();
  405.                             window.URL.revokeObjectURL(bloburl);
  406.                             SakiProgress.clearProgress();
  407.                             XHRDL.dlList.splice(0, 1);
  408.                             XHRDL.DLEngine.checkNext();
  409.                         } else {
  410.                             //TODO:支持更多特殊状态处理
  411.                             SakiProgress.setTextAlert(taskInfo.fileName + "暂不支持下载，跳过");
  412.                             XHRDL.dlList.splice(0, 1);
  413.                             XHRDL.DLEngine.checkNext();
  414.                         }
  415.                     }
  416.                 }
  417.                 xhr.onerror = function (e) {
  418.                     //TODO:支持处理不同类别出错
  419.                     if (!taskInfo.errorRetry) {
  420.                         SakiProgress.setTextAlert(taskInfo.fileName + "下载失败，置入列尾等待重试");
  421.                         taskInfo.errorRetry = true;
  422.                         var list = XHRDL.dlList;
  423.                         list[list.length] = taskInfo;
  424.                     } else {
  425.                         SakiProgress.setTextAlert(taskInfo.fileName + "下载又失败了，放弃");
  426.                     }
  427.                     XHRDL.dlList.splice(0, 1);
  428.                     XHRDL.DLEngine.checkNext();
  429.                 }
  430.                 xhr.open('GET', taskInfo.taskUrl, true)
  431.                 xhr.send()
  432.             },
  433.             checkNext: function () {
  434.                 if (XHRDL.dlList[0]) {
  435.                     this.dlFirstFile();
  436.                 } else {
  437.                     this.stop();
  438.                 }
  439.             }
  440.         }
  441.     }
  442.  
  443.  
  444.     const sleep = delay => new Promise(resolve => setTimeout(resolve, delay));
  445.     const openFrame=url=>{
  446.         var searchFrame = document.createElement("iframe");
  447.         searchFrame.frameBorder = 0;
  448.         searchFrame.style = "padding:100%;z-index:9999;position:fixed;backdrop-filter: blur(10px) brightness(100%);background-color: rgba(255, 255, 255, .6);width:100%;margin-top:0px;height:100%;left:0px;right:0px;top:0px;";
  449.         document.body.appendChild(searchFrame);
  450.         searchFrame.src = url;
  451.         var clsBtn = document.createElement("img");
  452.         clsBtn.style = "z-index:10000;position:fixed;display: inline-block;right:0px;top:0px;float:right;height:32px;width:32px;transition:background-color 0.2s;"
  453.         clsBtn.className = "barBtn"
  454.         clsBtn.src = "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDI0IDI0IiBoZWlnaHQ9IjQ4cHgiIHZpZXdCb3g9IjAgMCAyNCAyNCIgd2lkdGg9IjQ4cHgiIGZpbGw9IiMwMDAwMDAiPjxyZWN0IGZpbGw9Im5vbmUiIGhlaWdodD0iMjQiIHdpZHRoPSIyNCIvPjxwYXRoIGQ9Ik0yMiwzLjQxbC01LjI5LDUuMjlMMjAsMTJoLThWNGwzLjI5LDMuMjlMMjAuNTksMkwyMiwzLjQxeiBNMy40MSwyMmw1LjI5LTUuMjlMMTIsMjB2LThINGwzLjI5LDMuMjlMMiwyMC41OUwzLjQxLDIyeiIvPjwvc3ZnPg==";
  455.         document.body.appendChild(clsBtn);
  456.         searchFrame.addEventListener("load", async () => { await sleep(150); searchFrame.style.padding = "0px"; });
  457.         clsBtn.onclick = () => {
  458.             document.body.removeChild(searchFrame);
  459.             document.body.removeChild(clsBtn);
  460.         }
  461.     };
  462.     //主站检测
  463.     if (document.location.host == "www.xuexi.cn" || document.location.host == "preview-pdf.xuexi.cn") {
  464.         console.log("JS Loaded,Sleep 3 Sec-Qinlili");
  465.         await sleep(3000)
  466.         if (window.self === window.top) {
  467.             //初始化下载工具条
  468.             XHRDL.init();
  469.             var dlPannel = document.createElement("div");
  470.             var downloadBtn = document.createElement("button");
  471.             downloadBtn.innerText = "下载本页内容";
  472.             downloadBtn.style.display = "inline-block";
  473.             dlPannel.appendChild(downloadBtn);
  474.             var dlText = document.createElement("p");
  475.             dlText.style.display = "inline-block";
  476.             dlText.innerText = "等待检测页面类型";
  477.             dlPannel.appendChild(dlText);
  478.             var first = document.body.firstChild;
  479.             document.body.insertBefore(dlPannel, first);
  480.             //接管搜索
  481.             if (document.getElementsByClassName("icon search-icon")[0]) {
  482.                 var scBtn = document.getElementsByClassName("icon search-icon")[0];
  483.                 var scPrt = scBtn.parentElement;
  484.                 scPrt.removeChild(scBtn);
  485.                 scBtn = document.createElement("a");
  486.                 scBtn.className = "icon search-icon";
  487.                 scPrt.appendChild(scBtn);
  488.                 scBtn.addEventListener("click", async e => {
  489.                     var searchFrame = document.createElement("iframe");
  490.                     searchFrame.frameBorder = 0;
  491.                     searchFrame.style = "padding:100%;z-index:9999;position:fixed;backdrop-filter: blur(10px) brightness(100%);background-color: rgba(255, 255, 255, .6);width:100%;margin-top:0px;height:100%;left:0px;right:0px;top:0px;";
  492.                     document.body.appendChild(searchFrame);
  493.                     searchFrame.src = "https://static.xuexi.cn/search/online/index.html";
  494.                     var clsBtn = document.createElement("img");
  495.                     clsBtn.style = "z-index:10000;position:fixed;display: inline-block;right:0px;top:0px;float:right;height:32px;width:32px;transition:background-color 0.2s;"
  496.                     clsBtn.className = "barBtn"
  497.                     clsBtn.src = "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDI0IDI0IiBoZWlnaHQ9IjQ4cHgiIHZpZXdCb3g9IjAgMCAyNCAyNCIgd2lkdGg9IjQ4cHgiIGZpbGw9IiMwMDAwMDAiPjxyZWN0IGZpbGw9Im5vbmUiIGhlaWdodD0iMjQiIHdpZHRoPSIyNCIvPjxwYXRoIGQ9Ik0yMiwzLjQxbC01LjI5LDUuMjlMMjAsMTJoLThWNGwzLjI5LDMuMjlMMjAuNTksMkwyMiwzLjQxeiBNMy40MSwyMmw1LjI5LTUuMjlMMTIsMjB2LThINGwzLjI5LDMuMjlMMiwyMC41OUwzLjQxLDIyeiIvPjwvc3ZnPg==";
  498.                     document.body.appendChild(clsBtn);
  499.                     searchFrame.addEventListener("load", async () => { await sleep(150); searchFrame.style.padding = "0px"; });
  500.                     clsBtn.onclick = () => {
  501.                         document.body.removeChild(searchFrame);
  502.                         document.body.removeChild(clsBtn);
  503.                         window.removeEventListener("message", msg, false);
  504.                     }
  505.                     function msg(e) {
  506.                         //抄的官方JS改出来的，我对于这种非要传值到上层窗口的做法完全无法理解，但既然能跑，管他呢
  507.                         console.log('e:', e)
  508.                         console.log('e.data:', e.data)
  509.                         try {
  510.                             var params = JSON.parse(e.data);
  511.                             if (params.type) {
  512.                                 console.log('params.type:', params.type);
  513.                                 console.log('params.data:', params.data);
  514.                                 switch (params.type) {
  515.                                     case 'search':
  516.                                         var useQuestionMark = false;
  517.                                         var targetUrl = 'https://static.xuexi.cn/search/online/index.html'
  518.                                         for (var key in params.data) {
  519.                                             var value = params.data[key];
  520.                                             var op = '&'
  521.                                             if (!useQuestionMark) {
  522.                                                 op = '?';
  523.                                                 useQuestionMark = true;
  524.                                             }
  525.                                             targetUrl += op + key + '=' + value;
  526.                                         }
  527.                                         searchFrame.style.padding = "100%";
  528.                                         searchFrame.src = targetUrl;
  529.                                         break;
  530.                                     default:
  531.                                         break;
  532.                                 }
  533.                             }
  534.                         } catch (error) {
  535.                             console.log(error)
  536.                         }
  537.                     }
  538.                     window.addEventListener("message", msg, false);
  539.                 })
  540.             }
  541.             //接管登录(不可用)
  542.             if (document.getElementsByClassName("icon login-icon")[0]) {
  543.                 var dlBtn = document.getElementsByClassName("icon login-icon")[0];
  544.                 var dlPrt = dlBtn.parentElement;
  545.                 dlPrt.removeChild(dlBtn);
  546.                 dlBtn = document.createElement("a");
  547.                 dlBtn.className = "icon login-icon";
  548.                 dlPrt.appendChild(dlBtn);
  549.                 dlBtn.addEventListener("click", async e => {
  550.                     e.preventDefault();
  551.                     SakiProgress.showDiv();
  552.                     SakiProgress.setPercent(5);
  553.                     SakiProgress.setText("正在准备登录(不可用)...")
  554.                     console.log("Login Hooked!-Qinlili");
  555.                     var closeBtn = SakiProgress.addBtn("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDI0IDI0IiBoZWlnaHQ9IjQ4cHgiIHZpZXdCb3g9IjAgMCAyNCAyNCIgd2lkdGg9IjQ4cHgiIGZpbGw9IiMwMDAwMDAiPjxyZWN0IGZpbGw9Im5vbmUiIGhlaWdodD0iMjQiIHdpZHRoPSIyNCIvPjxwYXRoIGQ9Ik0yMiwzLjQxbC01LjI5LDUuMjlMMjAsMTJoLThWNGwzLjI5LDMuMjlMMjAuNTksMkwyMiwzLjQxeiBNMy40MSwyMmw1LjI5LTUuMjlMMTIsMjB2LThINGwzLjI5LDMuMjlMMiwyMC41OUwzLjQxLDIyeiIvPjwvc3ZnPg==")
  556.                     var loginFrame = document.createElement("iframe");
  557.                     loginFrame.frameBorder = 0;
  558.                     loginFrame.scrolling = "no";
  559.                     loginFrame.style = "padding:100%;z-index:9999;position:fixed;backdrop-filter: blur(10px) brightness(100%);background-color: rgba(255, 255, 255, .6);width:100%;margin-top:32px;height:100%;left:0px;right:0px;top:0px;";
  560.                     document.body.appendChild(loginFrame);
  561.                     loginFrame.addEventListener("load", async function () { await sleep(250); loginFrame.style.padding = "0px"; });
  562.                     var refreshBtn = SakiProgress.addBtn("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGhlaWdodD0iNDhweCIgdmlld0JveD0iMCAwIDI0IDI0IiB3aWR0aD0iNDhweCIgZmlsbD0iIzAwMDAwMCI+PHBhdGggZD0iTTAgMGgyNHYyNEgweiIgZmlsbD0ibm9uZSIvPjxwYXRoIGQ9Ik0xNy42NSA2LjM1QzE2LjIgNC45IDE0LjIxIDQgMTIgNGMtNC40MiAwLTcuOTkgMy41OC03Ljk5IDhzMy41NyA4IDcuOTkgOGMzLjczIDAgNi44NC0yLjU1IDcuNzMtNmgtMi4wOGMtLjgyIDIuMzMtMy4wNCA0LTUuNjUgNC0zLjMxIDAtNi0yLjY5LTYtNnMyLjY5LTYgNi02YzEuNjYgMCAzLjE0LjY5IDQuMjIgMS43OEwxMyAxMWg3VjRsLTIuMzUgMi4zNXoiLz48L3N2Zz4=")
  563.                     refreshBtn.onclick = () => {
  564.                         scanLogin();
  565.                     }
  566.                     closeBtn.onclick = () => {
  567.                         document.body.removeChild(loginFrame);
  568.                         SakiProgress.removeBtn(closeBtn);
  569.                         SakiProgress.removeBtn(refreshBtn);
  570.                         closeBtn = false;
  571.                         SakiProgress.clearProgress();
  572.                         SakiProgress.hideDiv();
  573.                     }
  574.                     async function scanLogin() {
  575.                         await sleep(100);
  576.                         SakiProgress.setPercent(10);
  577.                         SakiProgress.setText("正在获取登录(不可用)口令...");
  578.                         let token;
  579.                         let tokenText;
  580.                         try {
  581.                             token = await fetch("https://pc-api.xuexi.cn/open/api/sns/sign")
  582.                             tokenText = JSON.parse(await token.text())
  583.                         } catch (e) {
  584.                             SakiProgress.setPercent(100);
  585.                             SakiProgress.setText("出错了：网络连接中断！ " + e.message);
  586.                             return;
  587.                         }
  588.                         if (tokenText.code = "200") {
  589.                             token = tokenText.data.sign;
  590.                             SakiProgress.setPercent(40);
  591.                             SakiProgress.setText("口令获取成功，加载登录(不可用)页面...");
  592.                             loginFrame.onload = () => {
  593.                                 SakiProgress.setPercent(65);
  594.                                 SakiProgress.setText("等待扫码...");
  595.                             }
  596.                             loginFrame.style.padding = "100%";
  597.                             loginFrame.src = "https://login.xuexi.cn/login/xuexiWeb?appid=dingoankubyrfkttorhpou&goto=https%3A%2F%2Foa.xuexi.cn&type=1&state=" + token + "&check_login=https%3A%2F%2Fpc-api.xuexi.cn"
  598.                             window.addEventListener("message", event => {
  599.                                 event.preventDefault();
  600.                                 console.log(event);
  601.                                 if (event.data.success == true) {
  602.                                     SakiProgress.setPercent(100);
  603.                                     SakiProgress.setText("登录(不可用)成功，正在刷新页面...");
  604.                                     document.location.reload();
  605.                                 } else {
  606.                                     SakiProgress.setPercent(100);
  607.                                     SakiProgress.setText("出错了：扫码登录(不可用)失败，错误码为" + event.data.errorCode);
  608.                                 }
  609.                             }, false);
  610.                         } else {
  611.                             SakiProgress.setPercent(100);
  612.                             SakiProgress.setText("出错了：获取口令失败！");
  613.                         }
  614.                     }
  615.                     scanLogin();
  616.                 })
  617.             }
  618.             //检测爬取页面类型
  619.             console.log("Detecting Page " + document.location.pathname + "-Qinlili");
  620.             var detected = false;
  621.             //旧慕课列表
  622.             if ((document.body.innerText.indexOf("课程介绍") >= 1) || (document.body.innerText.indexOf("课程详情") >= 1)) {
  623.                 console.log("Old Mooc List Detected " + document.location.pathname + "-Qinlili");
  624.                 detected = true;
  625.                 dlText.innerText = "页面类型:旧慕课列表，支持全部批量下载，请开启网站自动下载权限";
  626.                 downloadBtn.onclick = () => {
  627.                     OldMoocListDL();
  628.                 }
  629.             }
  630.             //页面有播放器
  631.             if (window.Aliplayer) {
  632.                 //旧慕课、电视剧播放单页
  633.                 if (document.getElementsByClassName("radio-inline")[0]) {
  634.                     console.log("Old Video Player Detected " + document.location.pathname + "-Qinlili");
  635.                     detected = true;
  636.                     dlText.innerText = "页面类型:旧视频播放单页，支持全部批量下载，请开启网站自动下载权限";
  637.                     downloadBtn.onclick = () => {
  638.                         OldMoocVideoDL();
  639.                     }
  640.                 }
  641.                 //新慕课、影视总页
  642.                 if (document.getElementsByClassName("video-article-content")[0] || document.getElementsByClassName("videoSet-article-wrap")[0]) {
  643.                     console.log("New Video Player Detected " + document.location.pathname + "-Qinlili");
  644.                     detected = true;
  645.                     dlText.innerText = "页面类型:新视频总，支持全部批量下载最高清晰度，需要打开新标签页下载";
  646.                     downloadBtn.onclick = () => {
  647.                         NewMoocPageDL();
  648.                     }
  649.                 }
  650.             }
  651.             //音频专题
  652.             if (document.getElementsByClassName("album-play-btn")[0]) {
  653.                 console.log("Audio Detected " + document.location.pathname + "-Qinlili");
  654.                 detected = true;
  655.                 dlText.innerText = "页面类型:音频，支持全部批量下载，需要打开新标签页下载";
  656.                 downloadBtn.onclick = () => {
  657.                     AudioDL();
  658.                 }
  659.             }
  660.             //页面上就一个音频
  661.             //解锁音频播放器下载按钮
  662.             if (document.getElementsByTagName("audio").length) {
  663.                 detected = true;
  664.                 dlText.innerText = "页面类型:单个音频，已经解锁播放器下载能力，点击播放器右侧菜单下载";
  665.                 downloadBtn.style.display = "none";
  666.                 for (var la = 0; document.getElementsByTagName("audio")[la]; la++) {
  667.                     document.getElementsByTagName("audio")[la].removeAttribute("controlslist");
  668.                 }
  669.             }
  670.             //电子书下载
  671.             if (document.location.host == "preview-pdf.xuexi.cn") {
  672.                 detected = true;
  673.                 dlText.innerText = "页面类型:电子书，支持打包下载";
  674.                 downloadBtn.onclick = () => {
  675.                     PDFDL();
  676.                 }
  677.             }
  678.             if (!detected) {
  679.                 console.log("Unsupported Page " + document.location.pathname + "-Qinlili");
  680.                 dlText.innerText = "本页面不支持下载";
  681.                 downloadBtn.innerText = "暂不支持";
  682.             }
  683.  
  684.             //下载器部分
  685.             //旧慕课列表
  686.             function OldMoocListDL() {
  687.                 //读取全部视频列表
  688.                 var videoList = globalCache[Object.keys(globalCache)[0]];
  689.                 console.log("Found " + videoList.length + " Videos-Qinlili")
  690.                 for (var i = 0; videoList[i]; i++) {
  691.                     console.log("Try Analysis " + i + " Video-Qinlili")
  692.                     getInfoAndDL(pagetoinfourl(videoList[i].static_page_url));
  693.                 }
  694.  
  695.             }
  696.             //旧慕课播放单页
  697.             function OldMoocVideoDL() {
  698.                 console.log("Analysis Page Info-Qinlili")
  699.                 getInfoAndDL(pagetoinfourl(document.location.href))
  700.             }
  701.             function NewMoocPageDL() {
  702.                 console.log("Open DL Page-Qinlili");
  703.                 var searchParams = new URLSearchParams(document.location.search);
  704.                 var dlurl = "https://boot-source.xuexi.cn/newmoocdown?id=" + searchParams.get("id");
  705.                 openFrame(dlurl);
  706.             }
  707.             function AudioDL() {
  708.                 console.log("Open DL Page-Qinlili");
  709.                 var searchParams = new URLSearchParams(document.location.search);
  710.                 var dlurl = "https://boot-source.xuexi.cn/audiodown?id=" + searchParams.get("id");
  711.                 openFrame(dlurl);
  712.             }
  713.             async function PDFDL() {
  714.                 //webp压缩用处和顶碗人一样大，所以换成灰度压缩
  715.                 let enableGreyCompress = confirm("是否启用灰度压缩？\n适合保存以黑白文本内容的书籍或用于Kindle等墨水屏阅读，可大幅削减文件体积，需额外消耗压缩时间。\n根据琴梨梨自己的测试可削减大约44%大小，可用于解决Chrome无法爬512M以上书的问题。")
  716.                 let lowQuality = confirm("是否启用低质量模式？\n轻微降低画质换取显著的文件缩小");
  717.                 SakiProgress.showDiv();
  718.                 SakiProgress.setText("正在加载依赖...");
  719.                 await sleep(100)
  720.                 console.log("Preparing jsPDF Library...-Qinlili");
  721.                 var jsPDF = jspdf.jsPDF;
  722.                 try {
  723.                     console.log(jsPDF)
  724.                     console.log("jsPDF Ready!")
  725.                 } catch {
  726.                     console.error("jsPDF Not Ready!")
  727.                     alert("jsPDF加载失败，请检查网络并尝试重新安装脚本！")
  728.                 }
  729.                 SakiProgress.setText("正在调整尺寸...");
  730.                 SakiProgress.setPercent(2);
  731.                 await sleep(100)
  732.                 if(confirm("是否开启高清模式？请观察原书清晰度，若原书清晰度较高建议开启。\n对超过300页的书开启可能导致无法生成文件。")){
  733.                     //按钮循环点击得稍微延迟一点否则可能卡死
  734.                     //放大到最大保障清晰度
  735.                     for (; document.getElementsByClassName("ctrl-icon")[0].className.animVal.indexOf("disabled") < 0;) {
  736.                         document.getElementsByClassName("ctrl-icon")[0].parentElement.click()
  737.                         await sleep(50)
  738.                     }
  739.                 }
  740.                 SakiProgress.setText("正在回到第一页...");
  741.                 SakiProgress.setPercent(4);
  742.                 await sleep(100)
  743.                 //回到第一页
  744.                 for (; document.getElementsByClassName("ctrl-icon")[2].className.animVal.indexOf("disabled") < 0;) {
  745.                     document.getElementsByClassName("ctrl-icon")[2].parentElement.click()
  746.                     await sleep(50)
  747.                 }
  748.                 //创建文件
  749.                 SakiProgress.setText("正在创建文件...");
  750.                 SakiProgress.setPercent(6);
  751.                 await sleep(100)
  752.                 var samplePage = document.getElementsByTagName("canvas")[0]
  753.                 var ori;
  754.                 let wP = samplePage.width;
  755.                 let hP = samplePage.height;
  756.                 if (wP > hP) { ori = "l" } else { ori = "p" }
  757.                 var PDFfile = new jsPDF({
  758.                     orientation: ori,
  759.                     unit: 'px',
  760.                     format: [wP, hP],
  761.                     putOnlyUsedFonts: true,
  762.                 });
  763.                 console.log("Preparing PDF File...-Qinlili");
  764.                 console.log(PDFfile);
  765.                 //监听函数
  766.                 SakiProgress.setText("正在设置监听函数...");
  767.                 SakiProgress.setPercent(8);
  768.                 await sleep(100)
  769.                 var onPageChange = function () { };
  770.                 var val = document.getElementsByTagName("input")[0];
  771.                 function waitPageChange() {
  772.                     return new Promise(resolve => {
  773.                         onPageChange = () => {
  774.                             resolve();
  775.                         }
  776.                     });
  777.                 }
  778.                 //加载完成后页码显示才会变化，监听页码显示来等待加载
  779.                 Object.defineProperty(val, 'value', {
  780.                     set: newValue => {
  781.                         var valueProp = Object.getOwnPropertyDescriptor(HTMLInputElement.prototype, 'value');
  782.                         valueProp.set.call(val, newValue);
  783.                         onPageChange();
  784.                     }
  785.                 });
  786.                 //循环保存
  787.                 var page = 1;
  788.                 var totalPage = parseInt(document.getElementsByClassName("total")[0].innerText.substr(1));
  789.                 const saveCurrent=()=>{
  790.                     //不管有几页，把当前全部canvas保存再说
  791.                     for (var i = 0; document.getElementsByTagName("canvas")[i]; i++) {
  792.                         if (enableGreyCompress) {
  793.                             //灰度压缩
  794.                             let cnv = document.getElementsByTagName("canvas")[i];
  795.                             let cnx = cnv.getContext('2d');
  796.                             let width = cnv.width;
  797.                             let height = cnv.height;
  798.                             var imgPixels = cnx.getImageData(0, 0, width, height);
  799.                             for (var y = 0; y < height; y++) {
  800.                                 for (var x = 0; x < width; x++) {
  801.                                     let i = (y * 4) * width + x * 4;
  802.                                     var avg = (imgPixels.data[i] + imgPixels.data[i + 1] + imgPixels.data[i + 2]) / 3;
  803.                                     imgPixels.data[i] = avg;
  804.                                     imgPixels.data[i + 1] = avg;
  805.                                     imgPixels.data[i + 2] = avg;
  806.                                 }
  807.                             }
  808.                             cnx.putImageData(imgPixels, 0, 0, 0, 0, imgPixels.width, imgPixels.height);
  809.  
  810.                         }
  811.                         if(lowQuality){
  812.                             PDFfile.addImage(document.getElementsByTagName("canvas")[i].toDataURL("image/webp",0.75),"WEBP",0,0,wP,hP,null,"SLOW");
  813.                         }else{
  814.                             PDFfile.addImage(document.getElementsByTagName("canvas")[i], "WEBP", 0, 0, wP, hP, null, "SLOW");
  815.                         }
  816.                         PDFfile.addPage();
  817.                         page++
  818.                         console.log("Saved One Page!-Qinlili");
  819.                     }
  820.                 }
  821.                 for (; document.getElementsByClassName("ctrl-icon")[3].className.animVal.indexOf("disabled") < 0;) {
  822.                     SakiProgress.setText("正在保存第" + page + "页...");
  823.                     SakiProgress.setPercent(10 + 80 * (page / totalPage));
  824.                     console.log("Work Current Page:" + page + "...-Qinlili");
  825.                     await sleep(100)
  826.                     saveCurrent();
  827.                     //虽然不知道为什么加了延迟半秒就不会卡住，但既然能用管他为什么呢
  828.                     setTimeout(() => { document.getElementsByClassName("ctrl-icon")[3].parentElement.click(); }, 500)
  829.                     //显示的正在加载的页面可能比实际加载页面小一页，但估计1919810个用户里也没一个意识到，不影响保存效果这种细节就不管了，问就是爷懒的写
  830.                     SakiProgress.setText("正在等待加载第" + (page + 1) + "页...");
  831.                     console.log("Waiting For Loading...-Qinlili");
  832.                     await waitPageChange();
  833.                 };
  834.                 saveCurrent();
  835.                 PDFfile.setFontSize(40);
  836.                 PDFfile.text('Powered By Qinlili',35, 65);
  837.                 PDFfile.textWithLink('https://gf.qytechs.cn/zh-CN/scripts/429991',35, 25,{align: 'center', url: 'https://gf.qytechs.cn/zh-CN/scripts/429991'});
  838.                 //生成文件导出
  839.                 SakiProgress.setText("正在导出文件...");
  840.                 SakiProgress.setPercent(90);
  841.                 PDFfile.save("学习强国电子书导出.pdf", { returnPromise: true }).then(finish => {
  842.                     SakiProgress.clearProgress;
  843.                     SakiProgress.hideDiv();
  844.                 });
  845.             }
  846.         } else {
  847.             console.log("Iframe Page " + document.location.pathname + "\nSkip Detect-Qinlili");
  848.         }
  849.     }
  850.  
  851.     //全局共享函数
  852.     //读取视频信息并下载
  853.     function getInfoAndDL(infourl) {
  854.         console.log("Get Video Info:" + infourl + "\n-Qinlili")
  855.         var xhr = new XMLHttpRequest();
  856.         xhr.onload = event => {
  857.             console.log("Success Get Video Info:" + infourl + "\n-Qinlili")
  858.             if (xhr.readyState === 4 && xhr.status === 200) {
  859.                 var videoInfo = JSON.parse(xhr.response.replace("globalCache = ", "").replace(";", ""));
  860.                 stringToObject(videoInfo);
  861.                 //判断慕课
  862.                 if (videoInfo[Object.keys(videoInfo)[0]].info) {
  863.                     videoInfo = videoInfo[Object.keys(videoInfo)[0]].info;
  864.                     for (var vi = 0; videoInfo.ossUrl[vi]; vi++) {
  865.                         console.log("Video Name:" + videoInfo.frst_name + "-" + (vi + 1) + "\nChapter Name:" + videoInfo.mooc_class + "\nMooc Name:" + videoInfo.mooc + "\nVideo Url:" + videoInfo.ossUrl[vi] + "\n-Qinlili");
  866.                         var filename = videoInfo.frst_name + "-" + (vi + 1) + "-" + videoInfo.mooc_class + "-" + videoInfo.mooc + ".mp4"
  867.                         console.log("File Name:" + filename + "\nPrepare Download-Qinlili");
  868.                         downloadFile(videoInfo.ossUrl[vi], filename);
  869.                     }
  870.                 }
  871.                 //判断电视剧
  872.                 if (videoInfo[Object.keys(videoInfo)[0]].list) {
  873.                     videoInfo = videoInfo[Object.keys(videoInfo)[0]].list;
  874.                     for (var vii = 0; videoInfo[vii]; vii++) {
  875.                         console.log("Video Name:" + videoInfo[vii].frst_name + "-" + (vi + 1) + "\nList Name:" + videoInfo[vii].title + "\nVideo Url:" + videoInfo[vii].ossUrl + "\n-Qinlili");
  876.                         var filename2 = videoInfo[vii].frst_name + "-" + (vi + 1) + "-" + videoInfo[vii].title + ".mp4"
  877.                         console.log("File Name:" + filename2 + "\nPrepare Download-Qinlili");
  878.                         downloadFile(videoInfo[vii].ossUrl, filename2);
  879.                     }
  880.                 }
  881.             }
  882.             xhr.onerror = () => {
  883.                 console.log("Fail Get Video Info:" + infourl + "\n-Qinlili")
  884.             }
  885.         }
  886.         xhr.open('GET', infourl, false);
  887.         xhr.send();
  888.  
  889.         //平整化Array工具，从学习强国本身的js里抄过来的，大概原理就是尝试把值作为json解析，解析成功就把解析结果替换回去，总之我大受震撼
  890.         function stringToObject(params) {
  891.             for (var key in params) {
  892.                 var value = params[key];
  893.                 if (isString(value)) {
  894.                     try {
  895.                         if (typeof JSON.parse(value) == 'object') {
  896.                             params[key] = JSON.parse(value);
  897.                         }
  898.                     } catch (e) { }
  899.                 } else if (isArray(value)) {
  900.                     try {
  901.                         for (var index = 0; index < value.length; index++) {
  902.                             stringToObject(value[index]);
  903.                         }
  904.                     } catch (e) { }
  905.                 } else if (isObject(value)) {
  906.                     try {
  907.                         stringToObject(params[key])
  908.                     } catch (e) { }
  909.                 }
  910.             }
  911.         }
  912.  
  913.         function isArray(o) {
  914.             return Object.prototype.toString.call(o) === '[object Array]';
  915.         }
  916.  
  917.         function isString(o) {
  918.             return Object.prototype.toString.call(o) === '[object String]';
  919.         }
  920.  
  921.         function isObject(o) {
  922.             return Object.prototype.toString.call(o) === '[object Object]';
  923.         }
  924.     }
  925.  
  926.     //跳转避免跨域问题
  927.     if (document.location.host == "article.xuexi.cn") {
  928.         //检测是不是PDF页面，移动端分享文章也是这个域名，之前没发现
  929.         var obj = document.getElementsByTagName("link");
  930.         var isPDF = false;
  931.         for (var pdfJS = 0; obj[pdfJS]; pdfJS++) {
  932.             if (obj[pdfJS].href.indexOf("js/pdf") > 1) {
  933.                 isPDF = true;
  934.             }
  935.         }
  936.         if (isPDF) {
  937.             console.log("JS Loaded,Sleep 5 Sec-Qinlili");
  938.             var tip = document.createElement("H1");
  939.             tip.innerText = "即将跳转页面，请等待五秒";
  940.             tip.style = "z-index:9999;position:fixed;backdrop-filter: blur(10px) brightness(100%);background-color: rgba(255, 255, 255, .6);width:100%;margin-top:0px;height:100%;left:0px;right:0px;top:0px;";
  941.             document.body.appendChild(tip);
  942.             await sleep(5000)
  943.             document.location.href = document.getElementsByClassName("pdf-iframe")[0].src;
  944.         }
  945.     }
  946.  
  947.  
  948.     //404注入页面避免cors
  949.     if (document.location.host == "boot-source.xuexi.cn") {
  950.         console.log("JS Domain Detected, Prepare Inject-Qinlili");
  951.         document.querySelector("body").innerHTML = "<H2>本页面仅用于CORS注入，分享网址没有用，请允许下载多个文件</H2><H4 id=\"logcat\"></H4>"
  952.         XHRDL.init();
  953.         logcat("Initializing Downloader...");
  954.         await sleep(3000)
  955.         var searchParams = new URLSearchParams(document.location.search);
  956.         var vid = searchParams.get("id");
  957.         document.title = "下载：" + vid;
  958.         logcat("Found ID:" + vid);
  959.         logcat("Get Video Info:" + vid)
  960.         var xhr = new XMLHttpRequest();
  961.         xhr.onload = event => {
  962.             if (xhr.readyState === 4 && xhr.status === 200) {
  963.                 logcat("Success Get JSON Info:" + vid)
  964.                 var videoInfo = JSON.parse(xhr.response.replace("callback(", "").replace("})", "}"));
  965.                 console.log(videoInfo);
  966.                 logcat("List Name:" + videoInfo.normalized_title)
  967.                 logcat("List Origin:" + videoInfo.show_source)
  968.                 //文件名后缀
  969.                 var filenamesource = "-" + videoInfo.normalized_title + "-" + videoInfo.show_source;
  970.                 //视频下载模式
  971.                 if (document.location.pathname == "/newmoocdown") {
  972.                     //检测是否为多视频
  973.                     if (videoInfo.sub_items) {
  974.                         logcat("Found " + videoInfo.sub_items.length + " Videos");
  975.                         //循环解析并下载视频
  976.                         for (var vi = 0; videoInfo.sub_items[vi]; vi++) {
  977.                             logcat("Analysis Video " + (vi + 1));
  978.                             //currentVideo，缩写为cV看起来清爽点
  979.                             var cV = videoInfo.sub_items[vi];
  980.                             var vName = cV.title;
  981.                             logcat("Video Name:" + vName);
  982.                             //检测多个清晰度
  983.                             var vurl = getHighest(cV.videos[0].video_storage_info);
  984.                             logcat("Video Url:" + vurl);
  985.                             var fName = vName + filenamesource + ".mp4";
  986.                             logcat("File Name:" + fName);
  987.                             logcat("Call Downloader, Downloader Log Output In F12");
  988.                             downloadFile(vurl, fName);
  989.                         }
  990.                     } else {
  991.                         //单个视频
  992.                         var singlevurl = getHighest(videoInfo.videos[0].video_storage_info);
  993.                         logcat("Video Url:" + singlevurl);
  994.                         vName = videoInfo.title;
  995.                         var sfName = vName + filenamesource + ".mp4";
  996.                         logcat("File Name:" + sfName);
  997.                         logcat("Call Downloader, Downloader Log Output In F12");
  998.                         downloadFile(singlevurl, sfName);
  999.                     }
  1000.                 }
  1001.                 //音频下载模式
  1002.                 if (document.location.pathname == "/audiodown") {
  1003.                     if (videoInfo.sub_items) {
  1004.                         logcat("Found " + videoInfo.sub_items.length + " Audios");
  1005.                         //循环解析并下载音频
  1006.                         for (var ai = 0; videoInfo.sub_items[ai]; ai++) {
  1007.                             logcat("Analysis Video " + (ai + 1));
  1008.                             //currentAudio，缩写为cA看起来清爽点
  1009.                             var cA = videoInfo.sub_items[ai];
  1010.                             var aName = cA.title;
  1011.                             logcat("Audio Name:" + aName);
  1012.                             //音频不区分清晰度
  1013.                             var aurl = cA.audios[0].audio_storage_info[0].url;
  1014.                             logcat("Audio Url:" + aurl);
  1015.                             var afName = aName + filenamesource + ".mp3";
  1016.                             logcat("File Name:" + fName);
  1017.                             logcat("Call Downloader, Downloader Log Output In F12");
  1018.                             downloadFile(aurl, afName);
  1019.                         }
  1020.                     }
  1021.                 }
  1022.             }
  1023.         }
  1024.         xhr.onerror = () => {
  1025.             logcat("Fail Get Json Info:" + vid)
  1026.         }
  1027.         xhr.open('GET', "https://boot-source.xuexi.cn/data/app/" + vid + ".js?callback=callback&_st=" + Date.now());
  1028.         xhr.send();
  1029.         //打印日志方法，空页面就不用console.log了
  1030.         function logcat(text) {
  1031.             //获取时间参考https://www.jianshu.com/p/067469a4eed8，稍微整合了一下
  1032.             document.getElementById("logcat").innerText = new Date().toTimeString().substring(0, 8) + "  " + text + "\n" + document.getElementById("logcat").innerText;
  1033.         }
  1034.         //分析最高清晰度
  1035.         function getHighest(vObj) {
  1036.             var maxHeight = 1;
  1037.             var maxId = 0;
  1038.             for (var vii = 0; vObj[vii]; vii++) {
  1039.                 if (!(vObj[vii].format == "m3u8")) {
  1040.                     if (vObj[vii].height > maxHeight) {
  1041.                         maxHeight = vObj[vii].height;
  1042.                         maxId = vii;
  1043.                     }
  1044.                 }
  1045.             }
  1046.             logcat("Max Vide Height:" + maxHeight);
  1047.             return vObj[maxId].normal
  1048.         }
  1049.     }
  1050.  
  1051.  
  1052.     //地址转换函数
  1053.     function pagetoinfourl(pageurl) {
  1054.         var tempurl = pageurl.replace(".html", ".js");
  1055.         tempurl = insertStr(tempurl, tempurl.indexOf("/", 21) + 1, "data");
  1056.         return tempurl;
  1057.     }
  1058.     //插入
  1059.     function insertStr(soure, start, newStr) {
  1060.         return soure.slice(0, start) + newStr + soure.slice(start);
  1061.     }
  1062.     //下载
  1063.     function downloadFile(url, name) {
  1064.         XHRDL.newTask(url, name);
  1065.     }
  1066. }
  1067. )();

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