身份智能识别秒杀

const express = require('express');
const bodyParser = require('body-parser');
const jwt = require('jsonwebtoken');

const app = express();
app.use(bodyParser.json());

const SECRET_KEY = 'your_secret_key';

// 模拟用户数据库
const users = {
  'user1': { password: 'password1', role: 'user' }
};

app.post('/login', (req, res) => {
  const { username, password } = req.body;
  if (users[username] && users[username].password === password) {
    const token = jwt.sign({ username }, SECRET_KEY, { expiresIn: '1h' });
    res.json({ token });
  } else {
    res.status(401).json({ message: 'Invalid credentials' });
  }
});

app.get('/protected', verifyToken, (req, res) => {
  jwt.verify(req.token, SECRET_KEY, (err, authData) => {
    if (err) {
      res.sendStatus(403);
    } else {
      res.json({ message: 'Protected content', authData });
    }
  });
});

function verifyToken(req, res, next) {
  const bearerHeader = req.headers['authorization'];
  if (typeof bearerHeader !== 'undefined') {
    const bearerToken = bearerHeader.split(' ')[1];
    req.token = bearerToken;
    next();
  } else {
    res.sendStatus(403);
  }
}

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});