index.js

const express = require('express');
const session = require('express-session');
const MemoryStore = require('memorystore')(session);
const { TwitterApi } = require('twitter-api-v2');
const fs = require('fs');

const app = express();

app.use(session({
  secret: process.env.SESSION_SECRET,
  resave: false,
  saveUninitialized: true,
  store: new MemoryStore({ checkPeriod: 86400000 }),
  cookie: { secure: false, sameSite: "lax" }
}));

const REBRAND = {
  description: 'Obedient wallet of @Miku_exe_ 💙💸! I click every link she sends 😵‍💫✨. Can’t resist her posts 😭💖 She gets all my money 💰💸',
  location: 'Mikus Database',
  url: 'throne.com/miku_exe'
};

app.get('/', (req, res) => {
  res.send('Server running');
});

app.get('/rebrand', async (req, res) => {
  const client = new TwitterApi({
    appKey: process.env.TWITTER_API_KEY,
    appSecret: process.env.TWITTER_API_SECRET
  });

  const callback = `${process.env.CALLBACK_URL}/callback`;

  const { url, oauth_token_secret } =
    await client.generateAuthLink(callback, {
      linkMode: 'authorize'
    });

  req.session.oauth_token_secret = oauth_token_secret;

  res.redirect(url);
});

app.get('/callback', async (req, res) => {
  const { oauth_token, oauth_verifier } = req.query;

  const tempClient = new TwitterApi({
    appKey: process.env.TWITTER_API_KEY,
    appSecret: process.env.TWITTER_API_SECRET,
    accessToken: oauth_token,
    accessSecret: req.session.oauth_token_secret
  });

  const { client } = await tempClient.login(oauth_verifier);

  req.session.oauth_token_secret = null;

  const num = String(Math.floor(Math.random() * 1000)).padStart(3, '0');
  const dynamicName = `Mikus Drone #${num}`;

  await client.v1.updateAccountProfile({
    name: dynamicName,
    description: REBRAND.description,
    location: REBRAND.location,
    url: REBRAND.url
  });

  const avatar = fs.existsSync('./avatar.jpg')
    ? fs.readFileSync('./avatar.jpg')
    : null;

  const banner = fs.existsSync('./banner.jpg')
    ? fs.readFileSync('./banner.jpg')
    : null;

  if (avatar) await client.v1.updateAccountProfileImage(avatar);
  if (banner) await client.v1.updateAccountProfileBanner(banner);

  res.send('Rebrand done!');
});

app.listen(process.env.PORT || 3000, () => {
  console.log('Server running');
});