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学习强国梨酱小帮手

页面内登录/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

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Greasemonkey 油猴子Violentmonkey 暴力猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Violentmonkey 暴力猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Userscripts ,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展后才能安装此脚本。

(我已经安装了用户脚本管理器,让我安装!)

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

(我已经安装了用户样式管理器,让我安装!)

// ==UserScript==
// @name         学习强国梨酱小帮手
// @namespace    https://qinlili.bid/
// @version      1.1.8
// @description  页面内登录/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
// @author       琴梨梨
// @match        *://www.xuexi.cn/*
// @match        *://boot-source.xuexi.cn/newmoocdown?*
// @match        *://boot-source.xuexi.cn/audiodown?*
// @match        *://preview-pdf.xuexi.cn/*
// @match        *://article.xuexi.cn/*
// @match        https://login.xuexi.cn/login/xuexiWeb?*
// @match        https://static.xuexi.cn/search/*
// @icon         https://www.xuexi.cn/favicon.ico
// @homepage     https://github.com/qinlili23333/XXQG-DL
// @supportURL   https://github.com/qinlili23333/XXQG-DL
// @grant        none
// @run-at       document-end
// @require      https://lib.baomitu.com/jspdf/2.5.1/jspdf.umd.min.js
// @license      Anti996License
// ==/UserScript==


(async function () {
    'use strict';
    //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)
    //这些内容给本项目开发提供了帮助,感谢
    //https://stackoverflow.com/a/60644673
    //https://stackoverflow.com/a/55165133
    //也感谢每一位相信琴梨梨的用户

    //真的有人会看琴梨梨写的注释吗?在看的话MUA你一下~

    //是否开启跨源服务器
    //开启跨源服务器可以下载部分本来会出错的电子书
    //请访问此地址获取跨源服务器https://github.com/Rob--W/cors-anywhere
    //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
    var corsServer = "http://localhost:8080/";
    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")) {
        var valueProp = Object.getOwnPropertyDescriptor(Image.prototype, 'src');
        Object.defineProperty(Image.prototype, 'src', {
            set: function(newimgValue){
                if (!newimgValue.startsWith("data:")) {
                    newimgValue = corsServer + newimgValue;
                }
                this.crossOrigin = "anonymous"
                valueProp.set.call(this, newimgValue);
            }
        });
    }
    //iframe页面处理
    if (!(window.self === window.top)) {
        var transparentStyle = "background:none transparent !important;";
        document.documentElement.style = transparentStyle;
        document.body.style = transparentStyle;
        if (document.location.href.indexOf("login.xuexi.cn/login/xuexiWeb?") > 1) {
            document.getElementsByClassName("login_content")[0].style.background = "none"
        };
        if (document.location.href.indexOf("static.xuexi.cn/search/online/index.html") > 1) {
            document.getElementById("root").style.background = transparentStyle;
            if ((window.self.innerWidth > window.self.innerHeight) && window.self.innerWidth > 1000) {
                document.getElementsByClassName("search-content")[0].style = "padding-left:20px;padding-right:20px;"
            }
        };
    }
    //干掉日志
    (open=> {
        XMLHttpRequest.prototype.open = function (method, url, async, user, pass) {
            if (!(async === false)) {
                async = true;
            };
            if (url.startsWith("https://iflow-api.xuexi.cn/logflow/api/v1/pclog") || url.startsWith("https://arms-retcode.aliyuncs.com/r.png")) {
                console.log("Rejected Log XHR! " + url + " -Qinlili")
                url = "data:text,null"
            }
            open.call(this, method, url, async, user, pass);
        };
    })(XMLHttpRequest.prototype.open);
    var originFetch = fetch;
    window.fetch = (url, options) => {
        if (url.startsWith("https://iflow-api.xuexi.cn/logflow/api/v1/pclog") || url.startsWith("https://arms-retcode.aliyuncs.com/r.png")) {
            console.log("Rejected Log Fetch! " + url + " -Qinlili")
            url = "data:text,null"
        }
        return originFetch(url, options);
    }
    //干掉PDF水印
    if (document.location.host == "preview-pdf.xuexi.cn") {
        CanvasRenderingContext2D.prototype.fillText = () => { }
    }
    //共享库
    const 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!");
            }
        }
    }
    const 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();
                }
            }
        }
    }


    const sleep = delay => new Promise(resolve => setTimeout(resolve, delay));
    const openFrame=url=>{
        var searchFrame = document.createElement("iframe");
        searchFrame.frameBorder = 0;
        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;";
        document.body.appendChild(searchFrame);
        searchFrame.src = url;
        var clsBtn = document.createElement("img");
        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;"
        clsBtn.className = "barBtn"
        clsBtn.src = "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDI0IDI0IiBoZWlnaHQ9IjQ4cHgiIHZpZXdCb3g9IjAgMCAyNCAyNCIgd2lkdGg9IjQ4cHgiIGZpbGw9IiMwMDAwMDAiPjxyZWN0IGZpbGw9Im5vbmUiIGhlaWdodD0iMjQiIHdpZHRoPSIyNCIvPjxwYXRoIGQ9Ik0yMiwzLjQxbC01LjI5LDUuMjlMMjAsMTJoLThWNGwzLjI5LDMuMjlMMjAuNTksMkwyMiwzLjQxeiBNMy40MSwyMmw1LjI5LTUuMjlMMTIsMjB2LThINGwzLjI5LDMuMjlMMiwyMC41OUwzLjQxLDIyeiIvPjwvc3ZnPg==";
        document.body.appendChild(clsBtn);
        searchFrame.addEventListener("load", async () => { await sleep(150); searchFrame.style.padding = "0px"; });
        clsBtn.onclick = () => {
            document.body.removeChild(searchFrame);
            document.body.removeChild(clsBtn);
        }
    };
    //主站检测
    if (document.location.host == "www.xuexi.cn" || document.location.host == "preview-pdf.xuexi.cn") {
        console.log("JS Loaded,Sleep 3 Sec-Qinlili");
        await sleep(3000)
        if (window.self === window.top) {
            //初始化下载工具条
            XHRDL.init();
            var dlPannel = document.createElement("div");
            var downloadBtn = document.createElement("button");
            downloadBtn.innerText = "下载本页内容";
            downloadBtn.style.display = "inline-block";
            dlPannel.appendChild(downloadBtn);
            var dlText = document.createElement("p");
            dlText.style.display = "inline-block";
            dlText.innerText = "等待检测页面类型";
            dlPannel.appendChild(dlText);
            var first = document.body.firstChild;
            document.body.insertBefore(dlPannel, first);
            //接管搜索
            if (document.getElementsByClassName("icon search-icon")[0]) {
                var scBtn = document.getElementsByClassName("icon search-icon")[0];
                var scPrt = scBtn.parentElement;
                scPrt.removeChild(scBtn);
                scBtn = document.createElement("a");
                scBtn.className = "icon search-icon";
                scPrt.appendChild(scBtn);
                scBtn.addEventListener("click", async e => {
                    var searchFrame = document.createElement("iframe");
                    searchFrame.frameBorder = 0;
                    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;";
                    document.body.appendChild(searchFrame);
                    searchFrame.src = "https://static.xuexi.cn/search/online/index.html";
                    var clsBtn = document.createElement("img");
                    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;"
                    clsBtn.className = "barBtn"
                    clsBtn.src = "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDI0IDI0IiBoZWlnaHQ9IjQ4cHgiIHZpZXdCb3g9IjAgMCAyNCAyNCIgd2lkdGg9IjQ4cHgiIGZpbGw9IiMwMDAwMDAiPjxyZWN0IGZpbGw9Im5vbmUiIGhlaWdodD0iMjQiIHdpZHRoPSIyNCIvPjxwYXRoIGQ9Ik0yMiwzLjQxbC01LjI5LDUuMjlMMjAsMTJoLThWNGwzLjI5LDMuMjlMMjAuNTksMkwyMiwzLjQxeiBNMy40MSwyMmw1LjI5LTUuMjlMMTIsMjB2LThINGwzLjI5LDMuMjlMMiwyMC41OUwzLjQxLDIyeiIvPjwvc3ZnPg==";
                    document.body.appendChild(clsBtn);
                    searchFrame.addEventListener("load", async () => { await sleep(150); searchFrame.style.padding = "0px"; });
                    clsBtn.onclick = () => {
                        document.body.removeChild(searchFrame);
                        document.body.removeChild(clsBtn);
                        window.removeEventListener("message", msg, false);
                    }
                    function msg(e) {
                        //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
                        console.log('e:', e)
                        console.log('e.data:', e.data)
                        try {
                            var params = JSON.parse(e.data);
                            if (params.type) {
                                console.log('params.type:', params.type);
                                console.log('params.data:', params.data);
                                switch (params.type) {
                                    case 'search':
                                        var useQuestionMark = false;
                                        var targetUrl = 'https://static.xuexi.cn/search/online/index.html'
                                        for (var key in params.data) {
                                            var value = params.data[key];
                                            var op = '&'
                                            if (!useQuestionMark) {
                                                op = '?';
                                                useQuestionMark = true;
                                            }
                                            targetUrl += op + key + '=' + value;
                                        }
                                        searchFrame.style.padding = "100%";
                                        searchFrame.src = targetUrl;
                                        break;
                                    default:
                                        break;
                                }
                            }
                        } catch (error) {
                            console.log(error)
                        }
                    }
                    window.addEventListener("message", msg, false);
                })
            }
            //接管登录
            if (document.getElementsByClassName("icon login-icon")[0]) {
                var dlBtn = document.getElementsByClassName("icon login-icon")[0];
                var dlPrt = dlBtn.parentElement;
                dlPrt.removeChild(dlBtn);
                dlBtn = document.createElement("a");
                dlBtn.className = "icon login-icon";
                dlPrt.appendChild(dlBtn);
                dlBtn.addEventListener("click", async e => {
                    e.preventDefault();
                    SakiProgress.showDiv();
                    SakiProgress.setPercent(5);
                    SakiProgress.setText("正在准备登录...")
                    console.log("Login Hooked!-Qinlili");
                    var closeBtn = SakiProgress.addBtn("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGVuYWJsZS1iYWNrZ3JvdW5kPSJuZXcgMCAwIDI0IDI0IiBoZWlnaHQ9IjQ4cHgiIHZpZXdCb3g9IjAgMCAyNCAyNCIgd2lkdGg9IjQ4cHgiIGZpbGw9IiMwMDAwMDAiPjxyZWN0IGZpbGw9Im5vbmUiIGhlaWdodD0iMjQiIHdpZHRoPSIyNCIvPjxwYXRoIGQ9Ik0yMiwzLjQxbC01LjI5LDUuMjlMMjAsMTJoLThWNGwzLjI5LDMuMjlMMjAuNTksMkwyMiwzLjQxeiBNMy40MSwyMmw1LjI5LTUuMjlMMTIsMjB2LThINGwzLjI5LDMuMjlMMiwyMC41OUwzLjQxLDIyeiIvPjwvc3ZnPg==")
                    var loginFrame = document.createElement("iframe");
                    loginFrame.frameBorder = 0;
                    loginFrame.scrolling = "no";
                    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;";
                    document.body.appendChild(loginFrame);
                    loginFrame.addEventListener("load", async function () { await sleep(250); loginFrame.style.padding = "0px"; });
                    var refreshBtn = SakiProgress.addBtn("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGhlaWdodD0iNDhweCIgdmlld0JveD0iMCAwIDI0IDI0IiB3aWR0aD0iNDhweCIgZmlsbD0iIzAwMDAwMCI+PHBhdGggZD0iTTAgMGgyNHYyNEgweiIgZmlsbD0ibm9uZSIvPjxwYXRoIGQ9Ik0xNy42NSA2LjM1QzE2LjIgNC45IDE0LjIxIDQgMTIgNGMtNC40MiAwLTcuOTkgMy41OC03Ljk5IDhzMy41NyA4IDcuOTkgOGMzLjczIDAgNi44NC0yLjU1IDcuNzMtNmgtMi4wOGMtLjgyIDIuMzMtMy4wNCA0LTUuNjUgNC0zLjMxIDAtNi0yLjY5LTYtNnMyLjY5LTYgNi02YzEuNjYgMCAzLjE0LjY5IDQuMjIgMS43OEwxMyAxMWg3VjRsLTIuMzUgMi4zNXoiLz48L3N2Zz4=")
                    refreshBtn.onclick = () => {
                        scanLogin();
                    }
                    closeBtn.onclick = () => {
                        document.body.removeChild(loginFrame);
                        SakiProgress.removeBtn(closeBtn);
                        SakiProgress.removeBtn(refreshBtn);
                        closeBtn = false;
                        SakiProgress.clearProgress();
                        SakiProgress.hideDiv();
                    }
                    async function scanLogin() {
                        await sleep(100);
                        SakiProgress.setPercent(10);
                        SakiProgress.setText("正在获取登录口令...");
                        let token;
                        let tokenText;
                        try {
                            token = await fetch("https://pc-api.xuexi.cn/open/api/sns/sign")
                            tokenText = JSON.parse(await token.text())
                        } catch (e) {
                            SakiProgress.setPercent(100);
                            SakiProgress.setText("出错了:网络连接中断! " + e.message);
                            return;
                        }
                        if (tokenText.code = "200") {
                            token = tokenText.data.sign;
                            SakiProgress.setPercent(40);
                            SakiProgress.setText("口令获取成功,加载登录页面...");
                            loginFrame.onload = () => {
                                SakiProgress.setPercent(65);
                                SakiProgress.setText("等待扫码...");
                            }
                            loginFrame.style.padding = "100%";
                            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"
                            window.addEventListener("message", event => {
                                event.preventDefault();
                                console.log(event);
                                if (event.data.success == true) {
                                    SakiProgress.setPercent(100);
                                    SakiProgress.setText("登录成功,正在刷新页面...");
                                    document.location.reload();
                                } else {
                                    SakiProgress.setPercent(100);
                                    SakiProgress.setText("出错了:扫码登录失败,错误码为" + event.data.errorCode);
                                }
                            }, false);
                        } else {
                            SakiProgress.setPercent(100);
                            SakiProgress.setText("出错了:获取口令失败!");
                        }
                    }
                    scanLogin();
                })
            }
            //检测爬取页面类型
            console.log("Detecting Page " + document.location.pathname + "-Qinlili");
            var detected = false;
            //旧慕课列表
            if ((document.body.innerText.indexOf("课程介绍") >= 1) || (document.body.innerText.indexOf("课程详情") >= 1)) {
                console.log("Old Mooc List Detected " + document.location.pathname + "-Qinlili");
                detected = true;
                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";
                downloadBtn.onclick = () => {
                    OldMoocListDL();
                }
            }
            //页面有播放器
            if (window.Aliplayer) {
                //旧慕课、电视剧播放单页
                if (document.getElementsByClassName("radio-inline")[0]) {
                    console.log("Old Video Player Detected " + document.location.pathname + "-Qinlili");
                    detected = true;
                    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";
                    downloadBtn.onclick = () => {
                        OldMoocVideoDL();
                    }
                }
                //新慕课、影视总页
                if (document.getElementsByClassName("video-article-content")[0] || document.getElementsByClassName("videoSet-article-wrap")[0]) {
                    console.log("New Video Player Detected " + document.location.pathname + "-Qinlili");
                    detected = true;
                    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";
                    downloadBtn.onclick = () => {
                        NewMoocPageDL();
                    }
                }
            }
            //音频专题
            if (document.getElementsByClassName("album-play-btn")[0]) {
                console.log("Audio Detected " + document.location.pathname + "-Qinlili");
                detected = true;
                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";
                downloadBtn.onclick = () => {
                    AudioDL();
                }
            }
            //页面上就一个音频
            //解锁音频播放器下载按钮
            if (document.getElementsByTagName("audio").length) {
                detected = true;
                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";
                downloadBtn.style.display = "none";
                for (var la = 0; document.getElementsByTagName("audio")[la]; la++) {
                    document.getElementsByTagName("audio")[la].removeAttribute("controlslist");
                }
            }
            //电子书下载
            if (document.location.host == "preview-pdf.xuexi.cn") {
                detected = true;
                dlText.innerText = "页面类型:电子书,支持打包下载";
                downloadBtn.onclick = () => {
                    PDFDL();
                }
            }
            if (!detected) {
                console.log("Unsupported Page " + document.location.pathname + "-Qinlili");
                dlText.innerText = "本页面不支持下载";
                downloadBtn.innerText = "暂不支持";
            }

            //下载器部分
            //旧慕课列表
            function OldMoocListDL() {
                //读取全部视频列表
                var videoList = globalCache[Object.keys(globalCache)[0]];
                console.log("Found " + videoList.length + " Videos-Qinlili")
                for (var i = 0; videoList[i]; i++) {
                    console.log("Try Analysis " + i + " Video-Qinlili")
                    getInfoAndDL(pagetoinfourl(videoList[i].static_page_url));
                }

            }
            //旧慕课播放单页
            function OldMoocVideoDL() {
                console.log("Analysis Page Info-Qinlili")
                getInfoAndDL(pagetoinfourl(document.location.href))
            }
            function NewMoocPageDL() {
                console.log("Open DL Page-Qinlili");
                var searchParams = new URLSearchParams(document.location.search);
                var dlurl = "https://boot-source.xuexi.cn/newmoocdown?id=" + searchParams.get("id");
                openFrame(dlurl);
            }
            function AudioDL() {
                console.log("Open DL Page-Qinlili");
                var searchParams = new URLSearchParams(document.location.search);
                var dlurl = "https://boot-source.xuexi.cn/audiodown?id=" + searchParams.get("id");
                openFrame(dlurl);
            }
            async function PDFDL() {
                //webp压缩用处和顶碗人一样大,所以换成灰度压缩
                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。")
                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");
                SakiProgress.showDiv();
                SakiProgress.setText("正在加载依赖...");
                await sleep(100)
                console.log("Preparing jsPDF Library...-Qinlili");
                var jsPDF = jspdf.jsPDF;
                try {
                    console.log(jsPDF)
                    console.log("jsPDF Ready!")
                } catch {
                    console.error("jsPDF Not Ready!")
                    alert("jsPDF加载失败,请检查网络并尝试重新安装脚本!")
                }
                SakiProgress.setText("正在调整尺寸...");
                SakiProgress.setPercent(2);
                await sleep(100)
                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。")){
                    //按钮循环点击得稍微延迟一点否则可能卡死
                    //放大到最大保障清晰度
                    for (; document.getElementsByClassName("ctrl-icon")[0].className.animVal.indexOf("disabled") < 0;) {
                        document.getElementsByClassName("ctrl-icon")[0].parentElement.click()
                        await sleep(50)
                    }
                }
                SakiProgress.setText("正在回到第一页...");
                SakiProgress.setPercent(4);
                await sleep(100)
                //回到第一页
                for (; document.getElementsByClassName("ctrl-icon")[2].className.animVal.indexOf("disabled") < 0;) {
                    document.getElementsByClassName("ctrl-icon")[2].parentElement.click()
                    await sleep(50)
                }
                //创建文件
                SakiProgress.setText("正在创建文件...");
                SakiProgress.setPercent(6);
                await sleep(100)
                var samplePage = document.getElementsByTagName("canvas")[0]
                var ori;
                let wP = samplePage.width;
                let hP = samplePage.height;
                if (wP > hP) { ori = "l" } else { ori = "p" }
                var PDFfile = new jsPDF({
                    orientation: ori,
                    unit: 'px',
                    format: [wP, hP],
                    putOnlyUsedFonts: true,
                });
                console.log("Preparing PDF File...-Qinlili");
                console.log(PDFfile);
                //监听函数
                SakiProgress.setText("正在设置监听函数...");
                SakiProgress.setPercent(8);
                await sleep(100)
                var onPageChange = function () { };
                var val = document.getElementsByTagName("input")[0];
                function waitPageChange() {
                    return new Promise(resolve => {
                        onPageChange = () => {
                            resolve();
                        }
                    });
                }
                //加载完成后页码显示才会变化,监听页码显示来等待加载
                Object.defineProperty(val, 'value', {
                    set: newValue => {
                        var valueProp = Object.getOwnPropertyDescriptor(HTMLInputElement.prototype, 'value');
                        valueProp.set.call(val, newValue);
                        onPageChange();
                    }
                });
                //循环保存
                var page = 1;
                var totalPage = parseInt(document.getElementsByClassName("total")[0].innerText.substr(1));
                const saveCurrent=()=>{
                    //不管有几页,把当前全部canvas保存再说
                    for (var i = 0; document.getElementsByTagName("canvas")[i]; i++) {
                        if (enableGreyCompress) {
                            //灰度压缩
                            let cnv = document.getElementsByTagName("canvas")[i];
                            let cnx = cnv.getContext('2d');
                            let width = cnv.width;
                            let height = cnv.height;
                            var imgPixels = cnx.getImageData(0, 0, width, height);
                            for (var y = 0; y < height; y++) {
                                for (var x = 0; x < width; x++) {
                                    let i = (y * 4) * width + x * 4;
                                    var avg = (imgPixels.data[i] + imgPixels.data[i + 1] + imgPixels.data[i + 2]) / 3;
                                    imgPixels.data[i] = avg;
                                    imgPixels.data[i + 1] = avg;
                                    imgPixels.data[i + 2] = avg;
                                }
                            }
                            cnx.putImageData(imgPixels, 0, 0, 0, 0, imgPixels.width, imgPixels.height);

                        }
                        if(lowQuality){
                            PDFfile.addImage(document.getElementsByTagName("canvas")[i].toDataURL("image/webp",0.75),"WEBP",0,0,wP,hP,null,"SLOW");
                        }else{
                            PDFfile.addImage(document.getElementsByTagName("canvas")[i], "WEBP", 0, 0, wP, hP, null, "SLOW");
                        }
                        PDFfile.addPage();
                        page++
                        console.log("Saved One Page!-Qinlili");
                    }
                }
                for (; document.getElementsByClassName("ctrl-icon")[3].className.animVal.indexOf("disabled") < 0;) {
                    SakiProgress.setText("正在保存第" + page + "页...");
                    SakiProgress.setPercent(10 + 80 * (page / totalPage));
                    console.log("Work Current Page:" + page + "...-Qinlili");
                    await sleep(100)
                    saveCurrent();
                    //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
                    setTimeout(() => { document.getElementsByClassName("ctrl-icon")[3].parentElement.click(); }, 500)
                    //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
                    SakiProgress.setText("正在等待加载第" + (page + 1) + "页...");
                    console.log("Waiting For Loading...-Qinlili");
                    await waitPageChange();
                };
                saveCurrent();
                PDFfile.setFontSize(40);
                PDFfile.text('Powered By Qinlili',35, 65);
                PDFfile.textWithLink('http://greasyfork.icu/zh-CN/scripts/429991',35, 25,{align: 'center', url: 'http://greasyfork.icu/zh-CN/scripts/429991'});
                //生成文件导出
                SakiProgress.setText("正在导出文件...");
                SakiProgress.setPercent(90);
                PDFfile.save("学习强国电子书导出.pdf", { returnPromise: true }).then(finish => {
                    SakiProgress.clearProgress;
                    SakiProgress.hideDiv();
                });
            }
        } else {
            console.log("Iframe Page " + document.location.pathname + "\nSkip Detect-Qinlili");
        }
    }

    //全局共享函数
    //读取视频信息并下载
    function getInfoAndDL(infourl) {
        console.log("Get Video Info:" + infourl + "\n-Qinlili")
        var xhr = new XMLHttpRequest();
        xhr.onload = event => {
            console.log("Success Get Video Info:" + infourl + "\n-Qinlili")
            if (xhr.readyState === 4 && xhr.status === 200) {
                var videoInfo = JSON.parse(xhr.response.replace("globalCache = ", "").replace(";", ""));
                stringToObject(videoInfo);
                //判断慕课
                if (videoInfo[Object.keys(videoInfo)[0]].info) {
                    videoInfo = videoInfo[Object.keys(videoInfo)[0]].info;
                    for (var vi = 0; videoInfo.ossUrl[vi]; vi++) {
                        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");
                        var filename = videoInfo.frst_name + "-" + (vi + 1) + "-" + videoInfo.mooc_class + "-" + videoInfo.mooc + ".mp4"
                        console.log("File Name:" + filename + "\nPrepare Download-Qinlili");
                        downloadFile(videoInfo.ossUrl[vi], filename);
                    }
                }
                //判断电视剧
                if (videoInfo[Object.keys(videoInfo)[0]].list) {
                    videoInfo = videoInfo[Object.keys(videoInfo)[0]].list;
                    for (var vii = 0; videoInfo[vii]; vii++) {
                        console.log("Video Name:" + videoInfo[vii].frst_name + "-" + (vi + 1) + "\nList Name:" + videoInfo[vii].title + "\nVideo Url:" + videoInfo[vii].ossUrl + "\n-Qinlili");
                        var filename2 = videoInfo[vii].frst_name + "-" + (vi + 1) + "-" + videoInfo[vii].title + ".mp4"
                        console.log("File Name:" + filename2 + "\nPrepare Download-Qinlili");
                        downloadFile(videoInfo[vii].ossUrl, filename2);
                    }
                }
            }
            xhr.onerror = () => {
                console.log("Fail Get Video Info:" + infourl + "\n-Qinlili")
            }
        }
        xhr.open('GET', infourl, false);
        xhr.send();

        //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
        function stringToObject(params) {
            for (var key in params) {
                var value = params[key];
                if (isString(value)) {
                    try {
                        if (typeof JSON.parse(value) == 'object') {
                            params[key] = JSON.parse(value);
                        }
                    } catch (e) { }
                } else if (isArray(value)) {
                    try {
                        for (var index = 0; index < value.length; index++) {
                            stringToObject(value[index]);
                        }
                    } catch (e) { }
                } else if (isObject(value)) {
                    try {
                        stringToObject(params[key])
                    } catch (e) { }
                }
            }
        }

        function isArray(o) {
            return Object.prototype.toString.call(o) === '[object Array]';
        }

        function isString(o) {
            return Object.prototype.toString.call(o) === '[object String]';
        }

        function isObject(o) {
            return Object.prototype.toString.call(o) === '[object Object]';
        }
    }

    //跳转避免跨域问题
    if (document.location.host == "article.xuexi.cn") {
        //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
        var obj = document.getElementsByTagName("link");
        var isPDF = false;
        for (var pdfJS = 0; obj[pdfJS]; pdfJS++) {
            if (obj[pdfJS].href.indexOf("js/pdf") > 1) {
                isPDF = true;
            }
        }
        if (isPDF) {
            console.log("JS Loaded,Sleep 5 Sec-Qinlili");
            var tip = document.createElement("H1");
            tip.innerText = "即将跳转页面,请等待五秒";
            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;";
            document.body.appendChild(tip);
            await sleep(5000)
            document.location.href = document.getElementsByClassName("pdf-iframe")[0].src;
        }
    }


    //404注入页面避免cors
    if (document.location.host == "boot-source.xuexi.cn") {
        console.log("JS Domain Detected, Prepare Inject-Qinlili");
        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>"
        XHRDL.init();
        logcat("Initializing Downloader...");
        await sleep(3000)
        var searchParams = new URLSearchParams(document.location.search);
        var vid = searchParams.get("id");
        document.title = "下载:" + vid;
        logcat("Found ID:" + vid);
        logcat("Get Video Info:" + vid)
        var xhr = new XMLHttpRequest();
        xhr.onload = event => {
            if (xhr.readyState === 4 && xhr.status === 200) {
                logcat("Success Get JSON Info:" + vid)
                var videoInfo = JSON.parse(xhr.response.replace("callback(", "").replace("})", "}"));
                console.log(videoInfo);
                logcat("List Name:" + videoInfo.normalized_title)
                logcat("List Origin:" + videoInfo.show_source)
                //文件名后缀
                var filenamesource = "-" + videoInfo.normalized_title + "-" + videoInfo.show_source;
                //视频下载模式
                if (document.location.pathname == "/newmoocdown") {
                    //检测是否为多视频
                    if (videoInfo.sub_items) {
                        logcat("Found " + videoInfo.sub_items.length + " Videos");
                        //循环解析并下载视频
                        for (var vi = 0; videoInfo.sub_items[vi]; vi++) {
                            logcat("Analysis Video " + (vi + 1));
                            //currentVideo,缩写为cV看起来清爽点
                            var cV = videoInfo.sub_items[vi];
                            var vName = cV.title;
                            logcat("Video Name:" + vName);
                            //检测多个清晰度
                            var vurl = getHighest(cV.videos[0].video_storage_info);
                            logcat("Video Url:" + vurl);
                            var fName = vName + filenamesource + ".mp4";
                            logcat("File Name:" + fName);
                            logcat("Call Downloader, Downloader Log Output In F12");
                            downloadFile(vurl, fName);
                        }
                    } else {
                        //单个视频
                        var singlevurl = getHighest(videoInfo.videos[0].video_storage_info);
                        logcat("Video Url:" + singlevurl);
                        vName = videoInfo.title;
                        var sfName = vName + filenamesource + ".mp4";
                        logcat("File Name:" + sfName);
                        logcat("Call Downloader, Downloader Log Output In F12");
                        downloadFile(singlevurl, sfName);
                    }
                }
                //音频下载模式
                if (document.location.pathname == "/audiodown") {
                    if (videoInfo.sub_items) {
                        logcat("Found " + videoInfo.sub_items.length + " Audios");
                        //循环解析并下载音频
                        for (var ai = 0; videoInfo.sub_items[ai]; ai++) {
                            logcat("Analysis Video " + (ai + 1));
                            //currentAudio,缩写为cA看起来清爽点
                            var cA = videoInfo.sub_items[ai];
                            var aName = cA.title;
                            logcat("Audio Name:" + aName);
                            //音频不区分清晰度
                            var aurl = cA.audios[0].audio_storage_info[0].url;
                            logcat("Audio Url:" + aurl);
                            var afName = aName + filenamesource + ".mp3";
                            logcat("File Name:" + fName);
                            logcat("Call Downloader, Downloader Log Output In F12");
                            downloadFile(aurl, afName);
                        }
                    }
                }
            }
        }
        xhr.onerror = () => {
            logcat("Fail Get Json Info:" + vid)
        }
        xhr.open('GET', "https://boot-source.xuexi.cn/data/app/" + vid + ".js?callback=callback&_st=" + Date.now());
        xhr.send();
        //打印日志方法,空页面就不用console.log了
        function logcat(text) {
            //获取时间参考https://www.jianshu.com/p/067469a4eed8,稍微整合了一下
            document.getElementById("logcat").innerText = new Date().toTimeString().substring(0, 8) + "  " + text + "\n" + document.getElementById("logcat").innerText;
        }
        //分析最高清晰度
        function getHighest(vObj) {
            var maxHeight = 1;
            var maxId = 0;
            for (var vii = 0; vObj[vii]; vii++) {
                if (!(vObj[vii].format == "m3u8")) {
                    if (vObj[vii].height > maxHeight) {
                        maxHeight = vObj[vii].height;
                        maxId = vii;
                    }
                }
            }
            logcat("Max Vide Height:" + maxHeight);
            return vObj[maxId].normal
        }
    }


    //地址转换函数
    function pagetoinfourl(pageurl) {
        var tempurl = pageurl.replace(".html", ".js");
        tempurl = insertStr(tempurl, tempurl.indexOf("/", 21) + 1, "data");
        return tempurl;
    }
    //插入
    function insertStr(soure, start, newStr) {
        return soure.slice(0, start) + newStr + soure.slice(start);
    }
    //下载
    function downloadFile(url, name) {
        XHRDL.newTask(url, name);
    }
}
)();