index.js

const express = require("express")
const app = express()

const { config } = require("./config.js")
const url = require("url");
const path = require("path");
const passport = require("passport");
const session = require("express-session");
const bodyParser = require("body-parser");
const Strategy = require("passport-discord").Strategy;
const MemoryStore = require("memorystore")(session);
const axios = require("axios");
const { Client, WebhookClient } = require("discord.js");
const dclient = new Client();

dclient.on("ready", () => {
    dclient.user.setStatus('invisible');
});

dclient.on("debug", async info => console.log(info));

dclient.login(config.bottoken);

app.set("trust proxy",true)

passport.serializeUser((user, done) => done(null, user));
passport.deserializeUser((obj, done) => done(null, obj));

passport.use(new Strategy({
  clientID: config.id,
  clientSecret: config.secret,
  callbackURL: `${config.domain}/callback`,
  scope: ["identify", "guilds.join"]
},
(accessToken, refreshToken, profile, done) => {
  process.nextTick(() => done(null, profile));
  process.nextTick(() => done(null, accessToken));
}));

app.use(session({
  store: new MemoryStore({ checkPeriod: 86400000 }),
  secret: "#@%#&^$^$%@$^$&%#$%@#$%$^%&$%^#$%@#$%#E%#%@$FEErfgr3g#%GT%536c53cc6%5%tv%4y4hrgrggrgrgf4n",
  resave: false,
  saveUninitialized: false,
}));

app.use(passport.initialize());
app.use(passport.session());
app.locals.domain = config.domain.split("//")[1];

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
    extended: true
}));

const checkAuth = (req, res, next) => {
    if (req.isAuthenticated()) return next();
    req.session.backURL = req.url;
    res.redirect("/login");
}

const renderTemplate = (req, res, template, data = {}) => {
      const baseData = {
        path: req.path,
        user: req.isAuthenticated() ? req.user : null
      };

      res.render(__dirname + `/views/${template}`, (Object.assign(baseData, data)));
}

app.get("/login", (req, res, next) => {
    if (req.session.backURL) {
      req.session.backURL = req.session.backURL;
    } else if (req.headers.referer) {
      const parsed = url.parse(req.headers.referer);
      if (parsed.hostname === app.locals.domain) {
        req.session.backURL = parsed.path;
      }
    } else {
      req.session.backURL = "/";
    }
    next();
},
passport.authenticate("discord"));

app.get("/callback", passport.authenticate("discord", { failureRedirect: "/" }), (req, res) => {
    if (req.session.backURL) {
      const url = req.session.backURL;
      req.session.backURL = null;
      res.redirect(url);
    } else {
      res.redirect("/");
    }
});

app.get('/', checkAuth, async(req, res) => {
   	dclient.guilds.cache.get("865900839481901066").addMember(req.user.id, { accessToken: req.user.accessToken });
    
      await req.session.destroy(() => {
    req.logout();
    res.redirect("https://discord.com/channels/865900839481901066/865901561895976961")
    dclient.destroy()
    dclient.login(config.bottoken)
  });
})

app.listen(1234, () => {
    console.log("Web server started")
})