直接以PDF格式下载知网上的文献, 包括期刊论文和博硕士论文
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// ==UserScript==
// @id CNKI_PDF_Supernova
// @name 知网PDF下载助手
// @version 3.0.0
// @namespace https://github.com/supernovaZhangJiaXing/Tampermonkey/
// @author Supernova
// @description 直接以PDF格式下载知网上的文献, 包括期刊论文和博硕士论文
// @include http*://*.cnki.net/*
// @include http*://*.cnki.net.*/*
// @include */kns/brief/*
// @include */kns55/brief/*
// @include */grid2008/brief/*
// @include */detail/detail.aspx*
// @exclude http://image.cnki.net/*
// @run-at document-idle
// @grant unsafeWindow
// @grant GM_xmlhttpRequest
// ==/UserScript==
var $ = unsafeWindow.jQuery;
(function() {
'use strict';
window.onload = function(){
var isDetailPage = false;
var isCNKIPage = false;
var myurl = window.location.href;
// isDetailPage: 点进文献后的详情页
if (myurl.indexOf("detail.aspx") != -1) {
isDetailPage = true;
}
// isNewPage: 是知网页面(谁从杂牌网站下载(╯‵□′)╯︵┻━┻)
if (document.title.indexOf(" - 中国知网") != -1) {
isCNKIPage = true;
}
// 查找所有链接的XPath
var allLinks;
// 如果不是详情页, 即在搜索页面直接点右面的下载图标, 把点击后发送的get请求的dflag参数内容改为"pdfdown"就可以了(知网老贼你以为隐藏起来我就找不到了?)
if (isDetailPage === false) {
if (window.location.href.indexOf("kns8") != -1){ // 文献检索页面, 防止在别处出现
// 加一个转换下载方式的按钮
var thisLink;
// 浮动框
var float_box = document.createElement("div");
float_box.style = "position: fixed ; right: 20px; top: 50px; width: 200px; text-align: center; border: dashed; padding: 10px; background-color: cyan";
document.getElementsByTagName("body")[0].insertAdjacentElement("afterbegin", float_box);
// 勾选框
var change_type = document.createElement("button");
change_type.innerText = "转换为默认下载PDF";
change_type.id = "change_type";
change_type.style = "font-size:150%;";
change_type.onclick = function() {
allLinks = document.evaluate(
'//a[@title="下载"]',
document,
null,
XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
null);
for (var i = 0; i < allLinks.snapshotLength; i++) {
thisLink = allLinks.snapshotItem(i);
if (thisLink.href && thisLink.href.indexOf("download.aspx?filename=") != -1 && thisLink.href.indexOf("&dflag") == -1) {
thisLink.href = thisLink.href + "&dflag=pdfdown";
} else if (thisLink.href && thisLink.href.indexOf("download.aspx?filename=") != -1 && thisLink.href.indexOf("&dflag=nhdown") != -1) {
thisLink.href = thisLink.href.replace("nhdown", "pdfdown");
} else {
thisLink.href = "https://kns.cnki.net/kcms/download.aspx?" + thisLink.href.substr(thisLink.href.indexOf("filename=")) + "&dflag=pdfdown";
}
}
change_type.innerText = "√ 已转换: 默认下载PDF";
};
float_box.insertAdjacentElement("beforeend", change_type);
}
}
// 如果进了详情页, 博硕士论文下面会出现五个个按钮: 手机, 整本, 分页, 分章, 在线
// 期刊论文下会有三个按钮
else {
// 只对"博硕论文"详情页做优化, 否则影响期刊页面的显示
// 新版界面更改了详情页的显示方式, 原本的"博硕论文"四个大字没有了, 只能数按钮数量了
var operate_buttons = document.getElementsByClassName("operate-btn")[0];
if (isCNKIPage === true && operate_buttons.childNodes[3].innerText == "整本下载") {
// 整本下载替换为CAJ下载
var dlcaj = document.getElementsByClassName("btn-dlcaj")[0];
dlcaj.innerHTML = dlcaj.innerHTML.replace("整本", "CAJ");
// 新增PDF下载的按钮
var dlpdf = document.getElementsByClassName("btn-dlpdf")[0]; // 从分页下载获取链接
var pdfdown = dlpdf.getElementsByTagName('a');
var dl = pdfdown[0].href.replace("&dflag=downpage", "&dflag=pdfdown");
var li = document.createElement('li');
li.className = "btn-dlpdf";
var a = document.createElement('a');
a.innerHTML = "<i></i>PDF 下载";
a.target="_blank";
a.id = "pdfDown";
a.name = "pdfDown";
a.href = dl;
li.appendChild(a);
operate_buttons.appendChild(li);
operate_buttons.insertBefore(li, dlcaj.nextElementSibling);
// 从分章下载获取URL
var dlChapter = document.getElementsByClassName("btn-dlcaj")[1];
// dlChapter.className = "btn-dlpdf";
var dlChapter_link = dlChapter.childNodes[0];
// dlChapter.innerHTML = dlChapter.innerHTML.replace("分章", "目录");
// 分页下载替换为目录复制
dlpdf.innerHTML = dlpdf.innerHTML.replace("分页下载", "目录复制");
dlpdf.className = "btn-dlcaj";
pdfdown[0].removeAttribute("href");
pdfdown[0].removeAttribute("target");
pdfdown[0].removeAttribute("onclick");
pdfdown[0].id = "copyContents";
pdfdown[0].name = "copyContents";
pdfdown[0].removeChild(pdfdown[0].childNodes[0]);
dlpdf.onclick = function() {
// 1. 获取目录url
var url = dlChapter_link.href || '?';
url = 'https://chn.oversea.cnki.net/kcms/download.aspx' + url.replace(/%20/g, '').match(/\?.*/)[0];
// 2. 使用GM_xmlhttpRequest获取目录内容
// 3. 在copycontents函数复制目录
GM_xmlhttpRequest({method: 'GET', url: url, onload: copycontents});
};
// 添加目录下载
var dlContent = document.createElement('li');
dlContent.className = "btn-dlpdf";
var dlContent_link = document.createElement('a');
dlContent_link.innerHTML = "目录下载";
dlContent_link.id = "content";
dlContent_link.name = "content";
dlContent.appendChild(dlContent_link);
dlContent.onclick = function (){
// 1. 获取目录url
var url = dlChapter_link.href || '?';
url = 'https://chn.oversea.cnki.net/kcms/download.aspx' + url.replace(/%20/g, '').match(/\?.*/)[0];
// 2. 使用GM_xmlhttpRequest获取目录内容
// 3. 在done函数使用Blob下载目录
GM_xmlhttpRequest({method: 'GET', url: url, onload: done});
};
operate_buttons.insertBefore(dlContent, dlChapter);
// 右侧添加使用教程
var how_to_use_li = document.createElement('li');
how_to_use_li.className = "btn-phone";
var how_to_use = document.createElement('a');
how_to_use.innerHTML = "使用说明";
how_to_use.target="_blank";
how_to_use.id = "how_to_use";
how_to_use.name = "how_to_use";
how_to_use.href = 'https://mp.weixin.qq.com/s?__biz=MzU5MTY4NDUzMg==&mid=2247484384&idx=1&sn=6a135e824793d26b5bd8884b78c1f751&chksm=fe2a753bc95dfc2d3a5f6383553fc369894c5021619c85bb7554583bdcb8c10624bf2a7097e1&token=462651491&lang=zh_CN#rd';
how_to_use_li.appendChild(how_to_use);
operate_buttons.appendChild(how_to_use_li);
}
}
// 下面是在目录页面加一个下载按钮
if (myurl.includes("kdoc")) {
var title = document.getElementsByClassName("DBlueText")[0];
var downCnt = document.createElement("button");
downCnt.innerHTML = "下载目录索引";
downCnt.id = "downCnt";
downCnt.style = "height: 32px; padding: 0 15px; background-color: #1890ff; border-color: #1890ff; color: #fff; font-size: 14px; border-radius: 4px; text-shadow: 0 -1px 0 rgba(0,0,0,0.12); box-shadow: 0 2px 0 rgba(0,0,0,0.045); margin: 10px";
downCnt.onclick = function() {
// 目录列表
var cnt_list = document.getElementById("downCnt").nextSibling.nextSibling.childNodes[1].childNodes; // 加了一句说明, 再取一个.nextSibling才是目录
// 要写的内容
var contents = get_content(cnt_list);
// 下载目录
download_content(contents, title);
};
var info = document.createElement("div");
info.style = "font-size:120%; margin: 15px;";
info.innerText = "索引文件的使用说明见此";
var manual = document.createElement("a");
manual.href = "https://zhuanlan.zhihu.com/p/237574559";
manual.style = "color: blue";
manual.innerText = "专栏";
manual.target="_blank";
var softwareinfo = document.createElement("div");
softwareinfo.style = "font-size:120%; margin: 15px;";
softwareinfo.innerText = "(提取码: qx3l)";
var software = document.createElement("a");
software.href = "https://pan.baidu.com/s/12i-uv3xALmHOjKpnO691aw";
software.style = "color: blue";
software.innerText = "PdgCntEditor(目录合并软件)下载 ";
software.target="_blank";
info.insertAdjacentElement("beforeend", manual);
softwareinfo.insertAdjacentElement("afterbegin", software);
title.parentElement.insertBefore(downCnt, title.nextElementSibling);
downCnt.parentElement.insertBefore(info, downCnt.nextElementSibling);
info.parentElement.insertBefore(softwareinfo, info.nextElementSibling);
}
};
})();
function get_content(cnt_list){
// 要写的内容
var contents = "";
for (var i = 0; i < cnt_list.length - 1; i++) { // 长度减一, 因为最后一个是text(???这又是什么神仙操作)
var cnt_item = cnt_list[i].childNodes[1].childNodes[1];
cnt_item = cnt_item.innerHTML;
var cnt_page = cnt_list[i].childNodes[3].childNodes[0].textContent.trim().split("-")[0]; // 知网的目录给的是个范围, 正常只需要前半部分
contents = contents + cnt_item.trim().replace(/ /g, " ") + "\t" + cnt_page + "\r\n";
}
return contents;
}
function download_content(contents, title){
var data = new Blob([contents],{type:"text/plain; charset=UTF-8"});
var downloadUrl = window.URL.createObjectURL(data);
var anchor = document.createElement("a");
anchor.href = downloadUrl;
anchor.download = "目录索引_" + title.innerHTML.trim().replace(/ /g, "");
anchor.click();
window.URL.revokeObjectURL(data);
window.alert("目录索引已保存, 请使用PdgCntEditor软件将目录整合到PDF中");
}
function copycontents(xhr){
// 目录列表
var cnt_list = $('tr', xhr.responseText);
// 要写的内容
var contents = get_content(cnt_list);
// 利用隐藏textArea实现复制
const textarea = document.createElement('textarea');
document.getElementsByTagName('body')[0].appendChild(textarea);
textarea.setAttribute('readonly', 'readonly');
textarea.value = contents; // 这里应该用value，不用innerText
textarea.select();
if (document.execCommand('copy')) {
document.execCommand('copy');
window.alert('目录已复制到剪贴板');
}
document.getElementsByTagName('body')[0].removeChild(textarea);
};
function done(xhr){
// 目录列表
var cnt_list = $('tr', xhr.responseText);
// 要写的内容
var contents = get_content(cnt_list);
var title = document.getElementsByClassName("wx-tit")[0].childNodes[1];
download_content(contents, title)
};