Init v1.0.0

server/middleware/auth.js

@@ -0,0 +1,37 @@
+import jwt from 'jsonwebtoken';
+import { getDb } from '../config/database.js';
+
+const JWT_SECRET = process.env.JWT_SECRET || 'fallback-secret-change-me';
+
+export async function authenticateToken(req, res, next) {
+  const authHeader = req.headers.authorization;
+  const token = authHeader && authHeader.split(' ')[1];
+
+  if (!token) {
+    return res.status(401).json({ error: 'Authentifizierung erforderlich' });
+  }
+
+  try {
+    const decoded = jwt.verify(token, JWT_SECRET);
+    const db = getDb();
+    const user = await db.get('SELECT id, name, email, role, theme, language, avatar_color, avatar_image FROM users WHERE id = ?', [decoded.userId]);
+    if (!user) {
+      return res.status(401).json({ error: 'Benutzer nicht gefunden' });
+    }
+    req.user = user;
+    next();
+  } catch (err) {
+    return res.status(403).json({ error: 'Ungültiges Token' });
+  }
+}
+
+export function requireAdmin(req, res, next) {
+  if (req.user.role !== 'admin') {
+    return res.status(403).json({ error: 'Administratorrechte erforderlich' });
+  }
+  next();
+}
+
+export function generateToken(userId) {
+  return jwt.sign({ userId }, JWT_SECRET, { expiresIn: '7d' });
+}