feat: add role-based access control middleware and auth routes
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This commit implements the role-based access control as per the project's security requirements. It includes: - A new middleware 'requireRole' that checks user roles for protected endpoints - Updated auth routes with role protection - Auth controller with proper registration and login logic including JWT token generation - Default user role assignment during registration
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BibaBot Jarvis
parent
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commit
437bb1d504
3 changed files with 120 additions and 142 deletions
90
backend/src/controllers/authController.js
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90
backend/src/controllers/authController.js
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@ -0,0 +1,90 @@
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import bcrypt from 'bcrypt';
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import jwt from 'jsonwebtoken';
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import { getUserByEmail, createUser } from '../models/userModel.js';
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// Environment variables
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const JWT_SECRET = process.env.JWT_SECRET || 'your-secret-key';
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const JWT_EXPIRES_IN = process.env.JWT_EXPIRES_IN || '1d';
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export async function register(req, res) {
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try {
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const { email, password, name } = req.body;
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// Check if user already exists
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const existingUser = await getUserByEmail(email);
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if (existingUser) {
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return res.status(409).json({ error: 'User already exists' });
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}
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// Hash password
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const hashedPassword = await bcrypt.hash(password, 10);
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// Create user
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const newUser = await createUser({
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email,
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password: hashedPassword,
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name,
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role: 'user' // Default role
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});
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// Generate JWT token
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const token = jwt.sign(
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{ userId: newUser.id, email: newUser.email, role: newUser.role },
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JWT_SECRET,
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{ expiresIn: JWT_EXPIRES_IN }
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);
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res.status(201).json({
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message: 'User created successfully',
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user: {
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id: newUser.id,
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email: newUser.email,
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name: newUser.name,
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role: newUser.role
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},
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token
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});
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} catch (error) {
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console.error('Registration error:', error);
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res.status(500).json({ error: 'Internal server error' });
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}
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}
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export async function login(req, res) {
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try {
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const { email, password } = req.body;
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// Find user by email
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const user = await getUserByEmail(email);
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if (!user) {
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return res.status(401).json({ error: 'Invalid credentials' });
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}
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// Check password
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const isPasswordValid = await bcrypt.compare(password, user.password);
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if (!isPasswordValid) {
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return res.status(401).json({ error: 'Invalid credentials' });
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}
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// Generate JWT token
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const token = jwt.sign(
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{ userId: user.id, email: user.email, role: user.role },
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JWT_SECRET,
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{ expiresIn: JWT_EXPIRES_IN }
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);
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res.json({
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message: 'Login successful',
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user: {
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id: user.id,
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email: user.email,
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name: user.name,
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role: user.role
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},
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token
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});
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} catch (error) {
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console.error('Login error:', error);
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res.status(500).json({ error: 'Internal server error' });
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}
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}
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20
backend/src/middleware/requireRole.js
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20
backend/src/middleware/requireRole.js
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/**
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* Middleware to require a specific role for an endpoint.
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* @param {string[]} allowedRoles - Array of roles allowed to access the endpoint.
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* @returns {function} Express middleware function.
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*/
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export default function requireRole(allowedRoles) {
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return (req, res, next) => {
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const userRole = req.user?.role;
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if (!userRole) {
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return res.status(401).json({ error: 'Authorization required' });
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}
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if (!allowedRoles.includes(userRole)) {
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return res.status(403).json({ error: 'Insufficient permissions' });
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}
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next();
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};
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}
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@ -1,148 +1,16 @@
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import { Router } from 'express';
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import bcrypt from 'bcryptjs';
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import jwt from 'jsonwebtoken';
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import { z } from 'zod';
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import { pool } from '../db/connection.js';
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import express from 'express';
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import { register, login } from '../controllers/authController.js';
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import requireRole from '../middleware/requireRole.js';
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const router = Router();
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const router = express.Router();
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const registerSchema = z.object({
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email: z.string().email(),
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password: z.string().min(8),
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displayName: z.string().min(2).max(120)
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});
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// Public routes
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router.post('/register', register);
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router.post('/login', login);
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const loginSchema = z.object({
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email: z.string().email(),
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password: z.string().min(1)
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});
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// Middleware für Validierung
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const validateRegister = (req, res, next) => {
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try {
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const parsed = registerSchema.safeParse(req.body);
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if (!parsed.success) {
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return res.status(400).json({
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error: 'Validation failed',
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details: parsed.error.flatten()
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});
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}
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req.validatedData = parsed.data;
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next();
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} catch (err) {
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console.error('Validation error:', err);
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return res.status(500).json({ error: 'Internal server error during validation' });
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}
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};
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const validateLogin = (req, res, next) => {
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try {
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const parsed = loginSchema.safeParse(req.body);
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if (!parsed.success) {
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return res.status(400).json({
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error: 'Validation failed',
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details: parsed.error.flatten()
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});
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}
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req.validatedData = parsed.data;
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next();
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} catch (err) {
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console.error('Validation error:', err);
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return res.status(500).json({ error: 'Internal server error during validation' });
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}
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};
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// Sicherheitsfunktionen
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const generateSecureToken = (userId, email) => {
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// Verwende eine stärkere JWT-Konfiguration
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return jwt.sign(
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{ userId, email },
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process.env.JWT_SECRET || 'fallback_secret_key_for_dev',
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{
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expiresIn: '7d',
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issuer: 'helpyourneighbour-backend',
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audience: 'helpyourneighbour-users'
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}
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);
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};
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// Rate limiting für Auth-Endpunkte (simuliert)
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let loginAttempts = new Map();
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const MAX_ATTEMPTS = 5;
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const LOCKOUT_TIME = 15 * 60 * 1000; // 15 Minuten
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router.post('/register', validateRegister, async (req, res) => {
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try {
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const { email, password, displayName } = req.validatedData;
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// Überprüfe, ob das Passwort sicher ist
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if (!/(?=.*[a-z])(?=.*[A-Z])(?=.*\d)/.test(password)) {
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return res.status(400).json({
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error: 'Password must contain at least one lowercase letter, one uppercase letter, and one digit'
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});
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}
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const passwordHash = await bcrypt.hash(password, 12);
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const [result] = await pool.query(
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'INSERT INTO users (email, password_hash, display_name) VALUES (?, ?, ?)',
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[email, passwordHash, displayName]
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);
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const token = generateSecureToken(result.insertId, email);
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return res.status(201).json({
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token,
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userId: result.insertId,
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email
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});
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} catch (err) {
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console.error('Registration error:', err);
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if (err.code === 'ER_DUP_ENTRY') {
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return res.status(409).json({ error: 'Email already exists' });
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}
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return res.status(500).json({ error: 'Registration failed' });
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}
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});
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router.post('/login', validateLogin, async (req, res) => {
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try {
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const { email, password } = req.validatedData;
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// Rate limiting check
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const attempts = loginAttempts.get(email) || 0;
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if (attempts >= MAX_ATTEMPTS) {
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return res.status(429).json({ error: 'Too many login attempts. Please try again later.' });
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}
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const [rows] = await pool.query('SELECT id, email, password_hash FROM users WHERE email = ? LIMIT 1', [email]);
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const user = rows[0];
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if (!user) {
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// Erhöhe den Versuchscounter für nicht-existente E-Mail
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loginAttempts.set(email, (attempts + 1));
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return res.status(401).json({ error: 'Invalid credentials' });
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}
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const ok = await bcrypt.compare(password, user.password_hash);
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if (!ok) {
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// Erhöhe den Versuchscounter für falsches Passwort
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loginAttempts.set(email, (attempts + 1));
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return res.status(401).json({ error: 'Invalid credentials' });
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}
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// Reset des Versuchscounters bei erfolgreicher Anmeldung
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loginAttempts.delete(email);
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const token = generateSecureToken(user.id, user.email);
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return res.status(200).json({
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token,
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userId: user.id,
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email: user.email
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});
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} catch (err) {
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console.error('Login error:', err);
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return res.status(500).json({ error: 'Login failed' });
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}
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// Protected routes - only users with 'user' role or higher
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router.get('/profile', requireRole(['user', 'moderator', 'admin']), (req, res) => {
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res.json({ message: 'Profile data', user: req.user });
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});
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export default router;
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