register + login + mdp hash

srcs/backend/middleware/auth.js

@@ -0,0 +1,21 @@
+const jwt = require('jsonwebtoken');
+
+module.exports = function authMiddleware(req, res, next)
+{
+	const header = req.headers.authorization;
+	if (!header)
+		return (res.status(401).json({error: 'Missing token'}));
+
+	const token = header.split(' ')[1];
+
+	try
+	{
+		const payload = jwt.verify(token, process.env.JWT_SECRET);
+		req.user = payload;
+		next();
+	}
+	catch
+	{
+		res.status(401).json({error: 'Invalid token'});
+	}
+};