mirror of
https://github.com/MCSManager/MCSManager.git
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56 lines
2.0 KiB
JavaScript
56 lines
2.0 KiB
JavaScript
//基础的路由定义
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const router = require("express")();
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const response = require("../helper/Response");
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const permssion = require("../helper/Permission");
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const TokenManager = require("../helper/TokenManager");
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const counter = require("../core/counter");
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const UUID = require("uuid");
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const loginedContainer = require("../helper/LoginedContainer");
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function getRandToken() {
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return permssion.randomString(6) + UUID.v4().replace(/-/gim, "");
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}
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//Token
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router.get("/", function (req, res) {
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let username = req.session["username"] || undefined;
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//ajax 会受到浏览器跨域限制，姑不能对其进行csrf攻击获取token，尽管它可伪造。
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if (req.xhr) {
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if (!username || !loginedContainer.isLogined(req.sessionID)) {
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MCSERVER.log("[ Token ]", "未登录用户 ", username, " 请求更新令牌 | 已经阻止");
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//用户未登录，返回一个随机的 token 给它，并且这个 token 与正常的 token 几乎一模一样
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response.returnMsg(res, "token", {
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token: getRandToken(),
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username: username,
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});
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return;
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}
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//删除原先可能存在的
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TokenManager.delToken(req.session["token"] || null);
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//永远生产一个新的
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let newtoken = getRandToken();
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TokenManager.addToken(newtoken, username);
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req.session["token"] = newtoken;
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req.session.save();
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MCSERVER.log("[ Token ]", "用户 ", username, " 请求更新令牌 | 准许");
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response.returnMsg(res, "token", {
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token: req.session["token"],
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username: username,
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});
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} else {
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counter.plus("csrfCounter");
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res.send("<h1>CSRF 防御策略</h1><hr><p>您不能直接访问本页面,这是为了防御 CSRF 攻击,务必直接访问首页!</p>" + "<p>具体信息我们将统计到非法 API 请求,这可能需要值得您注意.</p>");
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}
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res.end();
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});
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//模块导出
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module.exports = router;
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// res.header('X-Powered-By','Mcserver Manager HTT_P_SERVER');
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//res.cookie('token_to',permssion.randomString(32));
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