courseworx/backend/middleware/auth.js

50 lines
No EOL
1.2 KiB
JavaScript

const jwt = require('jsonwebtoken');
const { User } = require('../models');
const auth = async (req, res, next) => {
try {
const token = req.header('Authorization')?.replace('Bearer ', '');
if (!token) {
return res.status(401).json({ error: 'Access denied. No token provided.' });
}
const decoded = jwt.verify(token, process.env.JWT_SECRET);
const user = await User.findByPk(decoded.userId);
if (!user || !user.isActive) {
return res.status(401).json({ error: 'Invalid token or user inactive.' });
}
req.user = user;
next();
} catch (error) {
res.status(401).json({ error: 'Invalid token.' });
}
};
const requireRole = (roles) => {
return (req, res, next) => {
if (!req.user) {
return res.status(401).json({ error: 'Authentication required.' });
}
if (!roles.includes(req.user.role)) {
return res.status(403).json({ error: 'Insufficient permissions.' });
}
next();
};
};
const requireSuperAdmin = requireRole(['super_admin']);
const requireTrainer = requireRole(['super_admin', 'trainer']);
const requireTrainee = requireRole(['super_admin', 'trainer', 'trainee']);
module.exports = {
auth,
requireRole,
requireSuperAdmin,
requireTrainer,
requireTrainee
};