知网学术下载解析工具，免登录即可下载，完全免费使用。
// ==UserScript==
// @name 知网下载助手
// @namespace cnki
// @version 0.0.4
// @antifeature membership
// @description 知网学术下载解析工具，免登录即可下载，完全免费使用。
// @author 千千软件
// @icon https://img03.mifile.cn/v1/MI_542ED8B1722DC/8a3d67192d85999be1bc1cda5c4d3528.png
// @match https://*.cnki.net/kcms2/*
// @require https://lib.baomitu.com/sweetalert/2.1.2/sweetalert.min.js
// @require https://lib.baomitu.com/clipboard.js/2.0.6/clipboard.min.js
// @run-at document-idle
// @grant unsafeWindow
// @grant GM_addStyle
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_deleteValue
// @grant GM_listValues
// @grant GM_openInTab
// @grant GM_notification
// @grant GM_xmlhttpRequest
// @connect localhost
// @connect 127.0.0.1
// @connect qianqian.club
// @connect cnki.net
// @connect baidu.com
// ==/UserScript==
(function () {
'use strict';
let globalData = {
scriptVersion: '0.0.4',
downloading: 0,
storageNamePrefix: 'qq_storageName', // 本地储存名称前缀
}
let getAppSettingData = function () {
return {
scriptVersion: globalData.scriptVersion,
apiUrl: `/cnki.php`,
storageNamePrefix: globalData.storageNamePrefix,
}
}
let getConfig = function () {
return {
code: getStorage.getLastUse('code'),
}
}
let getStorage = {
getAppConfig: (key) => {
return GM_getValue(getAppSettingData().storageNamePrefix + '_app_' + key) || '';
},
setAppConfig: (key, value) => {
GM_setValue(getAppSettingData().storageNamePrefix + '_app_' + key, value || '');
},
getLastUse: (key) => {
return GM_getValue(getAppSettingData().storageNamePrefix + '_last_' + key) || '';
},
setLastUse: (key, value) => {
GM_setValue(getAppSettingData().storageNamePrefix + '_last_' + key, value || '');
},
getCommonValue: (key) => {
return GM_getValue(getAppSettingData().storageNamePrefix + '_common_' + key) || '';
},
setCommonValue: (key, value) => {
GM_setValue(getAppSettingData().storageNamePrefix + '_common_' + key, value || '');
}
}
//下载面板
let showDownloadDialog = function (response) {
let content = `
<div id="downloadDialog">
<div id="dialogTop">
<div id="dialogErr">${response.err}</div>
</div>
<div id="dialogMiddle">
<div id="dialogLeft">
<div id="dialogQr">
<img id="dialogQrImg" src="https://img06.mifile.cn/v1/MI_542ED8B1722DC/118fd536b55197b20597d81d5974159f.jpg" />
</div>
</div>
<div id="dialogRight">
<div id="dialogContent">
<div id="dialogVaptchaCode">
<div id="dialogVaptchaCodeInput">
<span id="dialogVaptchaCodeTips">填写验证码：</span>
<input id="dialogCode" type="text" value="${getConfig().code}" />
</div>
<div id="dialogCodeRemark"></div>
</div>
<input id="dialogBtnGetUrl" type="button" value="点击继续下载" class="btnInterface" />
</div>
</div>
</div>
<div id="dialogClear"></div>
<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！！！-->
</div>
`;
showSwal(content, {
button: '关 闭',
closeOnClickOutside: false
});
}
//请求直链成功后，tips
let showQrTips = function (res) {
let qrImg = $.trim(res.qrImg);
let qrTips = $.trim(res.qrTips);
let codeTips = $.trim(res.codeTips);
let codeRemark = $.trim(res.codeRemark);
//console.log(qrImg, qrTips);
if (qrImg.length > 0) {
$("#dialogQrImg").attr('src', qrImg);
}
if (qrTips.length > 0) {
// $("#dialogBottom").html(qrTips);
}
if (codeTips.length > 0) {
$("#dialogVaptchaCodeTips").html(codeTips).show();
}
if (codeRemark.length > 0) {
$("#dialogCodeRemark").html(codeRemark).show();
}
}
//存储验证码
let saveCode = function () {
getStorage.setLastUse('code', $("#dialogCode").val());
}
//=========================================
//查询接口地址-->发起服务器请求
let getDownloadUrl = function (dlType) {
if (globalData.downloading === 1) {
return false;
}
setDownloadingState(dlType, '正在查询接口地址...');
let bdUrl = "https://pan.baidu.com/pcloud/user/getinfo?query_uk=1070525283";
let details = {
method: 'GET',
timeout: 10000, // 10秒超时
url: bdUrl + '&' + new Date().getTime(),
responseType: 'json',
onload: function (res) {
// console.log(res);
if (res.status === 200) {
if (res.response.errno == 0) {
let ifDomain = res.response.user_info.intro;
// console.log(ifDomain);
// ifDomain = 'http://localhost:48818/cnki'
getDownloadUrlReal(dlType, ifDomain);
} else {
throw res;
}
} else {
throw res;
}
}
};
try {
GM_xmlhttpRequest(details);
} catch (error) {
console.error(error);
setDownloadCompleteState();
showTipError('获取接口地址时报错：' + error.message)
}
}
let getDownloadUrlReal = function (dlType, ifDomain) {
setDownloadingState(dlType, '正在请求下载地址...');
let downloadUrl = `${ifDomain}${getAppSettingData().apiUrl}?version=${getAppSettingData().scriptVersion}&t=8888` + new Date().getTime();
// let code = $('#dialogCode').val() || getConfig().code;
let code = getConfig().code;
let fileUrl = window.location.href;
let fileName = $('.wx-tit h1').text();
let dlUrl = $('#' + dlType + 'Down').attr('href');
//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
if (!dlUrl && dlType == 'pdf') {
let pdfBtn = $('li.btn-dlpdf>a').first();
if (pdfBtn) {
dlUrl = pdfBtn.attr('href');
}
}
let params = new FormData();
params.append('code', $.trim(code));
params.append('fileUrl', fileUrl);
params.append('fileName', fileName);
params.append('dlUrl', dlUrl);
params.append('dlType', dlType);
//远程请求下载地址
let details = {
method: 'POST',
responseType: 'json',
timeout: 30000, // 30秒超时
url: downloadUrl,
data: params,
onload: function (res) {
// params.forEach((value, key) => {
// console.log("%s --> %s", key, value);
// })
setDownloadCompleteState();
console.log('远程请求直链地址，返回：', res);
if (res.status === 200) {
switch (res.response.errno) {
case 0: // 正常返回
console.log('正常返回');
downFile(res.response.downloadUrl);
break;
case 100: // 版本太旧
showTipErrorSwal(res.response.err);
break;
case 101: // 验证码不正确
showDownloadDialog(res.response);
showQrTips(res.response);
//绑定按钮点击（点击继续下载）
$("#dialogBtnGetUrl").click(function () {
saveCode();
swal.close();
getDownloadUrl();
});
break;
default: // 其它错误
showTipError(res.response.err);
break;
}
} else {
console.error(res);
showTipError('请求下载地址失败！服务器返回：' + res.status);
}
},
ontimeout: (res) => {
console.error(res);
setDownloadCompleteState();
showTipError('请求下载地址时连接服务器接口超时，请重试！');
},
onerror: (res) => {
console.error(res);
setDownloadCompleteState();
showTipError('请求下载地址时连接服务器接口出错，请重试！');
}
};
try {
GM_xmlhttpRequest(details);
} catch (error) {
showTipError('远程请求未知错误，请重试！');
setDownloadCompleteState();
console.error(error);
}
}
let setDownloadingState = function (dlType, tips) {
globalData.downloading = 1;
$('#' + dlType + 'BtnName').text(tips);
}
let setDownloadCompleteState = function () {
globalData.downloading = 0;
$('#pdfBtnName').text('知网助手下载PDF');
$('#cajBtnName').text('知网助手下载CAJ');
}
let showTipErrorSwal = function (err) {
showSwal(err, {icon: 'error'});
}
let showSwal = function (content, option) {
divTips.innerHTML = content;
option.content = divTips;
if (!option.hasOwnProperty('button')) {
option.button = '朕 知 道 了'
}
swal(option);
}
let showTipError = function (err) {
// showSwal(err,{icon: 'error'});
alert(err);
}
//========================================= 公共函数
let downFile = function (url) {
const a = document.createElement('a');
a.style.display = 'none';
a.href = url;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
};
// 延迟执行，否则找不到对应的按钮
let sleep = function (time) {
return new Promise((resolve) => setTimeout(resolve, time));
};
//========================================= css
GM_addStyle(`
.operate-btn .btn-dl-helper a {
background-color: #ff6988
}
.operate-btn .btn-dl-helper a:hover {
background-color: #dd2014
}
.operate-btn .btn-dlpdf-helper i {
background-position: -75px 0
}
.operate-btn .btn-dlcaj-helper i {
background-position: -50px 0
}
.operate-btn li .btn-dl-helper i {
display: inline-block;
vertical-align: middle;
width: 25px;
height: 25px;
background-image: url(https://piccache.cnki.net/nxgp/kcms/2023121114r/images/gb/kcms8/ndetail/icon-dllinkbtns3.png);
background-repeat: no-repeat;
*height: 20px;
}
.operate-left {
padding-right: 0px;
}
a.aDownHelper {
font-size: 16px;
font-weight: bold;
}
/****************************************/
.swal-modal {
width: auto;
min-width: 730px;
}
.swal-modal input {
border: 1px grey solid;
}
#downloadDialog{
width: 730px;
font-size: 16px;
}
#dialogTop{
margin: 20px 0;
}
#dialogErr{
background: #f4c758;
margin: 15px -20px 0 -20px;
padding: 10px 0 10px 25px;
color: #4c4433;
}
#dialogLeftTips{
text-align: left;
margin: 0 0 10px 0px;
color: #4c4433;
font-size: 13px;
}
#dialogRight{
width: 56%;
float: left;
margin-left: 10px;
}
#dialogContent input{
vertical-align: middle;
}
#dialogRemark{
text-align: left;
font-size: 12px;
margin-top: 5px;
}
#dialogVaptchaCode{
text-align: left;
font-size: 14px;
/* border: 2px solid #EDD; */
line-height: 28px;
}
#dialogVaptchaCodeInput{
font-size: 18px;
}
#dialogCode{
width: 65%;
font-size: 18px;
padding: 3px;
}
#dialogCodeRemark{
margin: 10px 0px;
padding: 3px;
}
#dialogQr{
width: 265px;
height: 265px;
text-align: center;
}
#dialogQr img{
width: 100%;
margin-left: 27px;
}
#dialogClear{
clear: both;
}
#dialogBottom{
text-align: left;
margin: 20px -20px -5px -20px;
background: #f4c758;
color: #4c4433;
height: 1px;
}
.btnInterface {
width: 100%;
height: 50px;
background: #f00 !important;
border-radius: 4px;
transition: .3s;
font-size: 25px !important;
border: 0;
color: #fff;
cursor: pointer;
text-decoration: none;
font-family: Microsoft YaHei,SimHei,Tahoma;
font-weight: 100;
letter-spacing: 2px;
}
#dialogLeft{
float: left;
width: 42%;
}
.swal-footer{
margin-top: 5px;
}
.div-dl-helper{
margin-bottom: 10px;
text-align: center;
}
`);
// ==================================== 逻辑代码开始
console.log('脚本开始');
const divTips = document.createElement('div');
divTips.id = "divTips";//用于提示脚本版本
let btnDownload = {
id: 'divCnkiHelper',
html: function () {
return `
<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;">
<a id="pdfDownHelper" class="aDownHelper" href="#">
<i></i>
<text id="pdfBtnName"></text>
</a>
</li>
<li id="liCajBtn" title="使用知网下载助手进行下载" class="btn-dl-helper btn-dlcaj-helper">
<a id="cajDownHelper" class="aDownHelper" href="#">
<i></i>
<text id="cajBtnName"></text>
</a>
</li>
`
},
class: function () {
return 'div-dl-helper';
}
}
let start = function () {//迭代调用
if (!$('#pdfDown')[0]) {
if (!$('li.btn-dlpdf>a').first()) {
//官网“学位论文”栏目的bug，两个按钮的id都是cajDown，暂时就这样来修复
console.log('找不到【PDF下载】按钮，该文档不可下载！');
return;
}
}
if (!$('#cajDown')[0]) {
console.log('找不到【CAJ下载】按钮！');
// return;
}
let operateBtn = $('ul.operate-btn');
// 创建按钮 START
let divCnkiHelper = document.createElement('div');
divCnkiHelper.id = btnDownload.id;
divCnkiHelper.innerHTML = btnDownload.html();
// divCnkiHelper.style.cssText = btnDownload.style();
divCnkiHelper.className = btnDownload.class();
// 创建按钮 END
// 添加按钮 START
operateBtn.children().first().before(divCnkiHelper);
if (!$('#cajDown')[0]) $('#liCajBtn').hide();//如果无caj下载按钮
setDownloadCompleteState();
// 添加按钮 END
//绑定点击事件
$('.aDownHelper').click(function (e) {
let dlType = $(this).attr('id').slice(0, 3);
console.log('#' + dlType + 'DownHelper 点击事件');
e.preventDefault();
// getDownloadUrlReal();
getDownloadUrl(dlType);
});
}
sleep(500).then(() => {
start();
// GM_deleteValue('qq_storageName_last_code');//测试
})
})();
//###########################################