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知网下载助手

知网学术下载解析工具，免登录(不可用)即可下载，完全免费使用。

目前为 2025-02-28 提交的版本。查看 最新版本。

  1. // ==UserScript==
  2. // @name         知网下载助手
  3. // @namespace    cnki
  4. // @version      0.0.4
  5. // @antifeature  membership
  6. // @description  知网学术下载解析工具，免登录(不可用)即可下载，完全免费使用。
  7. // @author       千千软件
  8. // @icon         https://img03.mifile.cn/v1/MI_542ED8B1722DC/8a3d67192d85999be1bc1cda5c4d3528.png
  9. // @match        https://*.cnki.net/kcms2/*
  10. // @require      https://lib.baomitu.com/sweetalert/2.1.2/sweetalert.min.js
  11. // @require      https://lib.baomitu.com/clipboard.js/2.0.6/clipboard.min.js
  12. // @run-at       document-idle
  13. // @grant        unsafeWindow
  14. // @grant        GM_addStyle
  15. // @grant        GM_getValue
  16. // @grant        GM_setValue
  17. // @grant        GM_deleteValue
  18. // @grant        GM_listValues
  19. // @grant        GM_openInTab
  20. // @grant        GM_notification
  21. // @grant        GM_xmlhttpRequest
  22. // @connect      localhost
  23. // @connect      127.0.0.1
  24. // @connect      qianqian.club
  25. // @connect      cnki.net
  26. // @connect      baidu.com
  27. // ==/UserScript==
  28.  
  29. (function () {
  30.     'use strict';
  31.  
  32.     let globalData = {
  33.         scriptVersion: '0.0.4',
  34.         downloading: 0,
  35.         storageNamePrefix: 'qq_storageName', // 本地储存名称前缀
  36.     }
  37.  
  38.     let getAppSettingData = function () {
  39.         return {
  40.             scriptVersion: globalData.scriptVersion,
  41.             apiUrl: `/cnki.php`,
  42.             storageNamePrefix: globalData.storageNamePrefix,
  43.         }
  44.     }
  45.  
  46.     let getConfig = function () {
  47.         return {
  48.             code: getStorage.getLastUse('code'),
  49.         }
  50.     }
  51.     let getStorage = {
  52.         getAppConfig: (key) => {
  53.             return GM_getValue(getAppSettingData().storageNamePrefix + '_app_' + key) || '';
  54.         },
  55.         setAppConfig: (key, value) => {
  56.             GM_setValue(getAppSettingData().storageNamePrefix + '_app_' + key, value || '');
  57.         },
  58.         getLastUse: (key) => {
  59.             return GM_getValue(getAppSettingData().storageNamePrefix + '_last_' + key) || '';
  60.         },
  61.         setLastUse: (key, value) => {
  62.             GM_setValue(getAppSettingData().storageNamePrefix + '_last_' + key, value || '');
  63.         },
  64.         getCommonValue: (key) => {
  65.             return GM_getValue(getAppSettingData().storageNamePrefix + '_common_' + key) || '';
  66.         },
  67.         setCommonValue: (key, value) => {
  68.             GM_setValue(getAppSettingData().storageNamePrefix + '_common_' + key, value || '');
  69.         }
  70.     }
  71.  
  72.     //下载面板
  73.     let showDownloadDialog = function (response) {
  74.         let content = `
  75.             <div id="downloadDialog">
  76.                 <div id="dialogTop">
  77.                     <div id="dialogErr">${response.err}</div>
  78.                 </div>
  79.                 <div id="dialogMiddle">
  80.                     <div id="dialogLeft">
  81.                         <div id="dialogQr">
  82.                             <img id="dialogQrImg" src="https://img06.mifile.cn/v1/MI_542ED8B1722DC/118fd536b55197b20597d81d5974159f.jpg" />
  83.                         </div>
  84.                     </div>
  85.                     <div id="dialogRight">
  86.                         <div id="dialogContent">
  87.                             <div id="dialogVaptchaCode">
  88.                                 <div id="dialogVaptchaCodeInput">
  89.                                     <span id="dialogVaptchaCodeTips">填写验证码：</span>
  90.                                     <input id="dialogCode" type="text" value="${getConfig().code}" />
  91.                                 </div>
  92.                                 <div id="dialogCodeRemark"></div>
  93.                             </div>
  94.                             <input id="dialogBtnGetUrl" type="button" value="点击继续下载" class="btnInterface" />
  95.                         </div>
  96.                     </div>
  97.                 </div>
  98.                 <div id="dialogClear"></div>
  99.                 <div id="dialogBottom"></div><!--众所周知的原因，脚本不可能常在，但作者常在，关注才能不迷路！！！-->
  100.             </div>
  101.         `;
  102.         showSwal(content, {
  103.             button: '关 闭',
  104.             closeOnClickOutside: false
  105.         });
  106.     }
  107.  
  108.     //请求直链成功后，tips
  109.     let showQrTips = function (res) {
  110.         let qrImg = $.trim(res.qrImg);
  111.         let qrTips = $.trim(res.qrTips);
  112.         let codeTips = $.trim(res.codeTips);
  113.         let codeRemark = $.trim(res.codeRemark);
  114.         //console.log(qrImg, qrTips);
  115.         if (qrImg.length > 0) {
  116.             $("#dialogQrImg").attr('src', qrImg);
  117.         }
  118.         if (qrTips.length > 0) {
  119.             // $("#dialogBottom").html(qrTips);
  120.         }
  121.         if (codeTips.length > 0) {
  122.             $("#dialogVaptchaCodeTips").html(codeTips).show();
  123.         }
  124.         if (codeRemark.length > 0) {
  125.             $("#dialogCodeRemark").html(codeRemark).show();
  126.         }
  127.     }
  128.  
  129.     //存储验证码
  130.     let saveCode = function () {
  131.         getStorage.setLastUse('code', $("#dialogCode").val());
  132.     }
  133.  
  134.     //=========================================
  135.  
  136.     //查询接口地址-->发起服务器请求
  137.     let getDownloadUrl = function (dlType) {
  138.         if (globalData.downloading === 1) {
  139.             return false;
  140.         }
  141.         setDownloadingState(dlType, '正在查询接口地址...');
  142.         let bdUrl = "https://pan.baidu.com/pcloud/user/getinfo?query_uk=1070525283";
  143.         let details = {
  144.             method: 'GET',
  145.             timeout: 10000, // 10秒超时
  146.             url: bdUrl + '&' + new Date().getTime(),
  147.             responseType: 'json',
  148.             onload: function (res) {
  149.                 // console.log(res);
  150.                 if (res.status === 200) {
  151.                     if (res.response.errno == 0) {
  152.                         let ifDomain = res.response.user_info.intro;
  153.                         // console.log(ifDomain);
  154.                         // ifDomain = 'http://localhost:48818/cnki'
  155.                         getDownloadUrlReal(dlType, ifDomain);
  156.                     } else {
  157.                         throw res;
  158.                     }
  159.                 } else {
  160.                     throw res;
  161.                 }
  162.             }
  163.         };
  164.         try {
  165.             GM_xmlhttpRequest(details);
  166.         } catch (error) {
  167.             console.error(error);
  168.             setDownloadCompleteState();
  169.             showTipError('获取接口地址时报错：' + error.message)
  170.         }
  171.     }
  172.  
  173.     let getDownloadUrlReal = function (dlType, ifDomain) {
  174.         setDownloadingState(dlType, '正在请求下载地址...');
  175.         let downloadUrl = `${ifDomain}${getAppSettingData().apiUrl}?version=${getAppSettingData().scriptVersion}&t=8888` + new Date().getTime();
  176.         // let code = $('#dialogCode').val() || getConfig().code;
  177.         let code = getConfig().code;
  178.         let fileUrl = window.location.href;
  179.         let fileName = $('.wx-tit h1').text();
  180.         let dlUrl = $('#' + dlType + 'Down').attr('href');
  181.         //官网“学位论文”栏目的bug，两个按钮的id都是cajDown，暂时就这样来修复
  182.         if (!dlUrl && dlType == 'pdf') {
  183.             let pdfBtn = $('li.btn-dlpdf>a').first();
  184.             if (pdfBtn) {
  185.                 dlUrl = pdfBtn.attr('href');
  186.             }
  187.         }
  188.  
  189.         let params = new FormData();
  190.         params.append('code', $.trim(code));
  191.         params.append('fileUrl', fileUrl);
  192.         params.append('fileName', fileName);
  193.         params.append('dlUrl', dlUrl);
  194.         params.append('dlType', dlType);
  195.         //远程请求下载地址
  196.         let details = {
  197.             method: 'POST',
  198.             responseType: 'json',
  199.             timeout: 30000, // 30秒超时
  200.             url: downloadUrl,
  201.             data: params,
  202.             onload: function (res) {
  203.                 // params.forEach((value, key) => {
  204.                 //      console.log("%s --> %s", key, value);
  205.                 // })
  206.                 setDownloadCompleteState();
  207.                 console.log('远程请求直链地址，返回：', res);
  208.                 if (res.status === 200) {
  209.                     switch (res.response.errno) {
  210.                         case 0: // 正常返回
  211.                             console.log('正常返回');
  212.                             downFile(res.response.downloadUrl);
  213.                             break;
  214.                         case 100: // 版本太旧
  215.                             showTipErrorSwal(res.response.err);
  216.                             break;
  217.                         case 101: // 验证码不正确
  218.                             showDownloadDialog(res.response);
  219.                             showQrTips(res.response);
  220.                             //绑定按钮点击（点击继续下载）
  221.                             $("#dialogBtnGetUrl").click(function () {
  222.                                 saveCode();
  223.                                 swal.close();
  224.                                 getDownloadUrl();
  225.                             });
  226.                             break;
  227.                         default: // 其它错误
  228.                             showTipError(res.response.err);
  229.                             break;
  230.                     }
  231.                 } else {
  232.                     console.error(res);
  233.                     showTipError('请求下载地址失败！服务器返回：' + res.status);
  234.                 }
  235.             },
  236.             ontimeout: (res) => {
  237.                 console.error(res);
  238.                 setDownloadCompleteState();
  239.                 showTipError('请求下载地址时连接服务器接口超时，请重试！');
  240.             },
  241.             onerror: (res) => {
  242.                 console.error(res);
  243.                 setDownloadCompleteState();
  244.                 showTipError('请求下载地址时连接服务器接口出错，请重试！');
  245.             }
  246.         };
  247.         try {
  248.             GM_xmlhttpRequest(details);
  249.         } catch (error) {
  250.             showTipError('远程请求未知错误，请重试！');
  251.             setDownloadCompleteState();
  252.             console.error(error);
  253.         }
  254.     }
  255.  
  256.     let setDownloadingState = function (dlType, tips) {
  257.         globalData.downloading = 1;
  258.         $('#' + dlType + 'BtnName').text(tips);
  259.     }
  260.     let setDownloadCompleteState = function () {
  261.         globalData.downloading = 0;
  262.         $('#pdfBtnName').text('知网助手下载PDF');
  263.         $('#cajBtnName').text('知网助手下载CAJ');
  264.     }
  265.  
  266.     let showTipErrorSwal = function (err) {
  267.         showSwal(err, {icon: 'error'});
  268.     }
  269.  
  270.     let showSwal = function (content, option) {
  271.         divTips.innerHTML = content;
  272.         option.content = divTips;
  273.         if (!option.hasOwnProperty('button')) {
  274.             option.button = '朕 知 道 了'
  275.         }
  276.         swal(option);
  277.     }
  278.  
  279.     let showTipError = function (err) {
  280.         // showSwal(err,{icon: 'error'});
  281.         alert(err);
  282.     }
  283.  
  284.     //========================================= 公共函数
  285.  
  286.     let downFile = function (url) {
  287.         const a = document.createElement('a');
  288.         a.style.display = 'none';
  289.         a.href = url;
  290.         document.body.appendChild(a);
  291.         a.click();
  292.         document.body.removeChild(a);
  293.     };
  294.  
  295.     // 延迟执行，否则找不到对应的按钮
  296.     let sleep = function (time) {
  297.         return new Promise((resolve) => setTimeout(resolve, time));
  298.     };
  299.  
  300.     //========================================= css
  301.     GM_addStyle(`
  302.         .operate-btn .btn-dl-helper a {
  303.             background-color: #ff6988
  304.         }
  305.         .operate-btn .btn-dl-helper a:hover {
  306.             background-color: #dd2014
  307.         }
  308.         .operate-btn .btn-dlpdf-helper i {
  309.             background-position: -75px 0
  310.         }
  311.         .operate-btn .btn-dlcaj-helper i {
  312.             background-position: -50px 0
  313.         }
  314.         .operate-btn li .btn-dl-helper i {
  315.             display: inline-block;
  316.             vertical-align: middle;
  317.             width: 25px;
  318.             height: 25px;
  319.             background-image: url(https://piccache.cnki.net/nxgp/kcms/2023121114r/images/gb/kcms8/ndetail/icon-dllinkbtns3.png);
  320.             background-repeat: no-repeat;
  321.             *height: 20px;
  322.         }
  323.         .operate-left {
  324.             padding-right: 0px;
  325.         }
  326.         a.aDownHelper {
  327.             font-size: 16px;
  328.             font-weight: bold;
  329.         }
  330.         
  331.         /****************************************/
  332.         .swal-modal {
  333.             width: auto;
  334.             min-width: 730px;
  335.         }
  336.         .swal-modal input {
  337.             border: 1px grey solid;
  338.         }
  339.         #downloadDialog{
  340.             width: 730px;
  341.             font-size: 16px;
  342.         }
  343.  
  344.         #dialogTop{
  345.             margin: 20px 0;
  346.         }
  347.         #dialogErr{
  348.             background: #f4c758;
  349.             margin: 15px -20px 0 -20px;
  350.             padding: 10px 0 10px 25px;
  351.             color: #4c4433;
  352.         }
  353.         #dialogLeftTips{
  354.             text-align: left;
  355.             margin: 0 0 10px 0px;
  356.             color: #4c4433;
  357.             font-size: 13px;
  358.         }
  359.         #dialogRight{
  360.             width: 56%;
  361.             float: left;
  362.             margin-left: 10px;
  363.         }
  364.         #dialogContent input{
  365.             vertical-align: middle;
  366.         }
  367.         #dialogRemark{
  368.             text-align: left;
  369.             font-size: 12px;
  370.             margin-top: 5px;
  371.         }
  372.         #dialogVaptchaCode{
  373.             text-align: left;
  374.             font-size: 14px;
  375.             /* border: 2px solid #EDD; */
  376.             line-height: 28px;
  377.         }
  378.         #dialogVaptchaCodeInput{
  379.             font-size: 18px;
  380.         }
  381.         #dialogCode{
  382.             width: 65%;
  383.             font-size: 18px;
  384.             padding: 3px;
  385.         }
  386.         #dialogCodeRemark{
  387.             margin: 10px 0px;
  388.             padding: 3px;
  389.         }
  390.         #dialogQr{
  391.             width: 265px;
  392.             height: 265px;
  393.             text-align: center;
  394.         }
  395.         #dialogQr img{
  396.             width: 100%;
  397.             margin-left: 27px;
  398.         }
  399.         #dialogClear{
  400.             clear: both;
  401.         }
  402.         #dialogBottom{
  403.             text-align: left;
  404.             margin: 20px -20px -5px -20px;
  405.             background: #f4c758;
  406.             color: #4c4433;
  407.             height: 1px;
  408.         }
  409.         .btnInterface {
  410.             width: 100%;
  411.             height: 50px;
  412.             background: #f00 !important;
  413.             border-radius: 4px;
  414.             transition: .3s;
  415.             font-size: 25px !important;
  416.             border: 0;
  417.             color: #fff;
  418.             cursor: pointer;
  419.             text-decoration: none;
  420.             font-family: Microsoft YaHei,SimHei,Tahoma;
  421.             font-weight: 100;
  422.             letter-spacing: 2px;
  423.         }
  424.         #dialogLeft{
  425.             float: left;
  426.             width: 42%;
  427.         }
  428.         .swal-footer{
  429.             margin-top: 5px;
  430.         }
  431.         .div-dl-helper{
  432.             margin-bottom: 10px;
  433.             text-align: center;
  434.         }
  435.     `);
  436.     // ==================================== 逻辑代码开始
  437.     console.log('脚本开始');
  438.  
  439.     const divTips = document.createElement('div');
  440.     divTips.id = "divTips";//用于提示脚本版本
  441.  
  442.     let btnDownload = {
  443.         id: 'divCnkiHelper',
  444.         html: function () {
  445.             return `
  446.                 <li id="liPdfBtn" title="使用知网下载助手进行下载" class="btn-dl-helper btn-dlpdf-helper" style="margin-right: 5px;">
  447.                     <a id="pdfDownHelper" class="aDownHelper" href="#">
  448.                         <i></i>
  449.                         <text id="pdfBtnName"></text>
  450.                     </a>
  451.                 </li>
  452.                 <li id="liCajBtn" title="使用知网下载助手进行下载" class="btn-dl-helper btn-dlcaj-helper">
  453.                     <a id="cajDownHelper" class="aDownHelper" href="#">
  454.                         <i></i>
  455.                         <text id="cajBtnName"></text>
  456.                     </a>
  457.                 </li>
  458.             `
  459.         },
  460.         class: function () {
  461.             return 'div-dl-helper';
  462.         }
  463.     }
  464.  
  465.     let start = function () {//迭代调用
  466.         if (!$('#pdfDown')[0]) {
  467.             if (!$('li.btn-dlpdf>a').first()) {
  468.                 //官网“学位论文”栏目的bug，两个按钮的id都是cajDown，暂时就这样来修复
  469.                 console.log('找不到【PDF下载】按钮，该文档不可下载！');
  470.                 return;
  471.             }
  472.         }
  473.         if (!$('#cajDown')[0]) {
  474.             console.log('找不到【CAJ下载】按钮！');
  475.             // return;
  476.         }
  477.         let operateBtn = $('ul.operate-btn');
  478.  
  479.         // 创建按钮 START
  480.         let divCnkiHelper = document.createElement('div');
  481.         divCnkiHelper.id = btnDownload.id;
  482.         divCnkiHelper.innerHTML = btnDownload.html();
  483.         // divCnkiHelper.style.cssText = btnDownload.style();
  484.         divCnkiHelper.className = btnDownload.class();
  485.         // 创建按钮 END
  486.  
  487.         // 添加按钮 START
  488.         operateBtn.children().first().before(divCnkiHelper);
  489.         if (!$('#cajDown')[0]) $('#liCajBtn').hide();//如果无caj下载按钮
  490.         setDownloadCompleteState();
  491.         // 添加按钮 END
  492.  
  493.         //绑定点击事件
  494.         $('.aDownHelper').click(function (e) {
  495.             let dlType = $(this).attr('id').slice(0, 3);
  496.             console.log('#' + dlType + 'DownHelper 点击事件');
  497.             e.preventDefault();
  498.             // getDownloadUrlReal();
  499.             getDownloadUrl(dlType);
  500.         });
  501.     }
  502.  
  503.     sleep(500).then(() => {
  504.         start();
  505.         // GM_deleteValue('qq_storageName_last_code');//测试
  506.     })
  507. })();
  508. //#################

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