一点小小hook
// ==UserScript==
// @name 更好访问gcc
// @namespace http://tampermonkey.net/
// @version 2.2
// @description 一点小小hook
// @author LinXingJun
// @match *://*.gcc.edu.cn/*
// @grant GM_xmlhttpRequest
// @grant unsafeWindow
// @connect *
// @run-at document-start
// @license MIT
// ==/UserScript==
(function () {
'use strict';
if (unsafeWindow.top !== unsafeWindow.self) {
return;
}
const cookie_url = "http://127.0.0.1:1999";
// 配置重定向规则
const redirect_domain = {
'nc.gcc.edu.cn': 'nic.gcc.edu.cn',
'www-cnki-net.vpn.gcc.edu.cn': 'www-cnki-net-s.vpn.gcc.edu.cn',
'navi-cnki-net-s.vpn.gcc.edu.cn:8118': 'navi.cnki.net',
'id-elsevier-com-s.vpn.gcc.edu.cn': 'www-elsevier-com-s.vpn.gcc.edu.cn'
};
const redirect_url = {
'/app/search/quick/': '/search/expert.url',
'application/checksessionstatus?resourcetype=redirect&isIndividual=false': '/search/expert.url',
'/portal/#!/vpn_openresource' : '',
'home.url' : '/search/expert.url'
};
const blockblackkeyword = ["vpn", "mail"];
if (unsafeWindow.location.protocol === 'https:') {
redirect_domain['http:'] = 'https:';
}
// 当前页面URL替换与跳转
function handlePageRedirect() {
let newUrl = unsafeWindow.location.href;
for (const [oldKey, newKey] of Object.entries(redirect_domain)) {
if (newUrl.includes(oldKey)) {
newUrl = newUrl.replace(oldKey, newKey);
unsafeWindow.location.replace(newUrl);
break;
}
}
// 检查是否需要重定向
for (const [keyword, redirectPath] of Object.entries(redirect_url)) {
if (unsafeWindow.location.href.includes(keyword)) {
// 清空URL参数并重定向
window.location.href = redirectPath;
break;
}
}
}
function webproxyurl(url){
let protocol = '';
if (url.startsWith('https://')) {
protocol = 'https://';
url = url.substring(8);
} else if (url.startsWith('http://')) {
protocol = 'http://';
url = url.substring(7);
}
// 分离路径
let path = '';
if (url.includes('/')) {
let urlParts = url.split('/');
url = urlParts[0];
path = '/' + urlParts.slice(1).join('/');
}
// 处理域名转换
if (protocol === 'https://') {
e.stopImmediatePropagation();
// 处理带端口号的情况: http://A.B:C.com -> http://A-B-C-P.vpn.gcc.edu.cn:8118
// 原有规则: https://A.B.com -> http://A-B-s.vpn.gcc.edu.cn:8118/
return `http://${url.replace(/\./g, '-')}-s.vpn.gcc.edu.cn:8118${path}`;
} else if (protocol === 'http://') {
e.stopImmediatePropagation();
// 处理带端口号的情况: http://A.B:C.com -> http://A-B-C-P.vpn.gcc.edu.cn:8118/
if (url.includes(':')) {
let [domain, port] = url.split(':');
let convertedDomain = domain.replace(/\./g, '-');
return `http://${convertedDomain}-${port}-P.vpn.gcc.edu.cn:8118${path}`;
} else {
// 原有规则: http://A.B.com -> http://A-B.vpn.gcc.edu.cn:8118/
return `http://${url.replace(/\./g, '-')}.vpn.gcc.edu.cn:8118${path}`;
}
}
}
// 屏蔽原生跳转（通过代理 a 标签点击事件）
function blockNativeRedirects() {
unsafeWindow.document.addEventListener('click', (e) => {
if (window.location.hostname == "vpn.gcc.edu.cn") {
const targetLink = e.target.closest('a.rs-list__item__href'); // 查找最近的匹配祖先元素
if (targetLink) {
var url = targetLink.querySelector('.rs-list__item__link')?.textContent.trim();
if (url) {
e.preventDefault();
window.open(webproxyurl(url), '_blank');
}
}
} else if (location.href.includes("engineering")) {
const href = e.target.getAttribute('href');
if (!href) return;
const url = new URL(href, window.location.href);
const path = url.pathname;
if (
path.startsWith('/search/results/') ||
path.startsWith('/app/doc/')
) {
// 阻止默认行为
e.stopImmediatePropagation();
// 在新标签页中打开链接
window.open(webproxyurl(href), '_blank', 'noopener,noreferrer');
}
else if (e.target.tagName === 'A') {
if (location.href.includes(blockblackkeyword)) {
return;
} else {
const href = e.target.getAttribute('href');
if (href && !href.startsWith('#')) {
e.stopImmediatePropagation();
// 手动处理跳转
window.location.href = href;
}
}
}
}
}, true);
}
unsafeWindow.document.addEventListener('DOMContentLoaded', function () {
//vpn 503的时候重新刷新
if (window.document.body.innerText.includes("Server is unable to process client's requests temporarily due to overload or system maintenance")) {
location.reload();
}
handlePageRedirect();
blockNativeRedirects();
var observerfunc = [];
if (window.location.href.includes("vpn")) {
observerfunc.push(function () {
// 需要处理的标签属性
const targets = [
{ selector: 'img', attr: 'src' },
{ selector: 'script', attr: 'src' },
];
targets.forEach(target => {
document.querySelectorAll(target.selector).forEach(el => {
const originalUrl = el.getAttribute(target.attr);
const isValidUrl = (originalUrl) => {
try {
new URL(originalUrl);
return true;
} catch (e) {
return false;
}
};
const isJavascriptProtocol = (url) => {
return url && url.trim().toLowerCase().startsWith('javascript:');
};
if (originalUrl && isValidUrl(originalUrl) && !el.complete && !isJavascriptProtocol(originalUrl)) {
// 使用 GM_xmlhttpRequest 下载资源
GM_xmlhttpRequest({
method: 'GET',
url: originalUrl,
responseType: 'blob',
onload: function (response) {
if (response.status === 200 && response.response) {
// 检查元素是否仍在文档中且资源未加载完成
if (document.contains(el)) {
// 创建 Blob URL
const blobUrl = URL.createObjectURL(response.response);
// 替换资源 URL
el.setAttribute(target.attr, blobUrl);
}
}
},
});
}
});
});
})
} else {
observerfunc.push(function () {
// 需要处理的标签属性
const targets = [
{ selector: 'a', attr: 'href' },
{ selector: 'img', attr: 'src' },
{ selector: 'script', attr: 'src' },
{ selector: 'link', attr: 'href' }
];
targets.forEach(target => {
unsafeWindow.document.querySelectorAll(target.selector).forEach(el => {
const attrValue = el.getAttribute(target.attr);
if (attrValue) {
for (const [oldKey, newKey] of Object.entries(redirect_url)) {
if (attrValue.includes(oldKey)) {
el.setAttribute(
target.attr,
attrValue.replace(oldKey, newKey)
);
break;
}
}
}
});
});
});
}
if (window.location.href.includes("jy")) {
observerfunc.push(function () {
let jyxpaths = [
'/html/body/div[2]/div/div[2]/div',
'/html/body/div[2]/div/div[2]',
'/html/body/div[2]/div/div'
];
// 遍历每个 XPath 表达式并删除对应的元素
jyxpaths.forEach(xpath => {
let element = unsafeWindow.document.evaluate(xpath, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
if (element) {
element.parentNode.removeChild(element);
}
});
})
}
if (window.location.href.includes("cnki")) {
observerfunc.push(function () {
const cnkielements = unsafeWindow.document.querySelectorAll('div#aliyunCaptcha-common-errorTip');
cnkielements.forEach(element => {
// 清空所有CSS样式
element.style.cssText = '';
// 设置为不可见
element.style.display = 'none';
});
})
}
if (window.location.href.includes("mail")) {
// 获取所有<a>标签
const allLinks = document.querySelectorAll('a');
allLinks.forEach(link => {
// 检查是否有href属性且以'A'开头
if (link.href && link.href.startsWith('http://mail.xs.gcc.edu.cn/cgi-bin/login')) {
// 直接替换整个URL前缀
link.href = link.href.replace(
'http://mail.xs',
'https://mail'
);
// 自动点击该链接
link.click();
}
});
}
// 遍历每个函数并添加观察器
observerfunc.forEach(function (func) {
var observer = new MutationObserver(func);
observer.observe(unsafeWindow.document.body, {
childList: true,
subtree: true
});
});
});
if (unsafeWindow.location.hostname == "vpn.gcc.edu.cn") {
window.onload = function () {
setInterval(() => {
// 获取cookie中的TWFID
const cookies = document.cookie.split(';');
let twfid = null;
for (let cookie of cookies) {
const [name, value] = cookie.trim().split('=');
if (name === 'TWFID') {
twfid = value;
break;
}
}
// 如果找到了TWFID，则发送到指定地址
if (twfid) {
GM_xmlhttpRequest({
method: 'POST',
url: cookie_url,
data: JSON.stringify({ TWFID: twfid }),
headers: {
'Content-Type': 'application/json'
},
onload: function (response) {
console.log('TWFID发送成功:', response.responseText);
},
onerror: function (error) {
console.error('发送TWFID失败:', error);
}
});
} else {
console.log('未找到TWFID cookie');
}
}, 1000);
};
}
})();