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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | 1x 1x 7x 7x 7x 2x 5x 5x 1x 1x 4x 4x 1x 1x | const jwt = require('jsonwebtoken');
// Middleware to authenticate JWT tokens
const authenticateToken = (req, res, next) => {
const authHeader = req.headers['authorization'];
const token = authHeader && authHeader.split(' ')[1]; // Bearer TOKEN
if (!token) {
return res.status(401).json({
error: 'Access token required',
message: 'Please provide a valid authentication token'
});
}
jwt.verify(token, process.env.JWT_SECRET, (err, user) => {
if (err) {
Iif (err.name === 'TokenExpiredError') {
return res.status(401).json({
error: 'Token expired',
message: 'Your authentication token has expired. Please login again.'
});
}
return res.status(403).json({
error: 'Invalid token',
message: 'The provided authentication token is invalid'
});
}
req.user = user;
next();
});
};
// Optional authentication middleware (doesn't fail if no token provided)
const optionalAuth = (req, res, next) => {
const authHeader = req.headers['authorization'];
const token = authHeader && authHeader.split(' ')[1];
if (token) {
jwt.verify(token, process.env.JWT_SECRET, (err, user) => {
if (!err) {
req.user = user;
}
next();
});
} else {
next();
}
};
module.exports = {
authenticateToken,
optionalAuth
}; |