Stefan Hacker
91 lines
2.2 KiB
TypeScript
91 lines
2.2 KiB
TypeScript
import { Response, NextFunction } from 'express';
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import jwt from 'jsonwebtoken';
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import { AuthRequest, JwtPayload } from '../types/index.js';
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export function authenticate(
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req: AuthRequest,
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res: Response,
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next: NextFunction
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): void {
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const authHeader = req.headers.authorization;
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if (!authHeader || !authHeader.startsWith('Bearer ')) {
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res.status(401).json({ success: false, error: 'Nicht authentifiziert' });
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return;
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}
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const token = authHeader.split(' ')[1];
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try {
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const decoded = jwt.verify(
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token,
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process.env.JWT_SECRET || 'fallback-secret'
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) as JwtPayload;
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req.user = decoded;
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next();
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} catch {
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res.status(401).json({ success: false, error: 'Ungültiger Token' });
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}
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}
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export function requirePermission(...requiredPermissions: string[]) {
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return (req: AuthRequest, res: Response, next: NextFunction): void => {
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if (!req.user) {
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res.status(401).json({ success: false, error: 'Nicht authentifiziert' });
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return;
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}
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const userPermissions = req.user.permissions || [];
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// Check if user has any of the required permissions
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const hasPermission = requiredPermissions.some((perm) =>
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userPermissions.includes(perm)
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);
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if (!hasPermission) {
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res.status(403).json({
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success: false,
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error: 'Keine Berechtigung für diese Aktion',
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});
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return;
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}
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next();
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};
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}
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// Middleware to check if user can access specific customer data
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export function requireCustomerAccess(
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req: AuthRequest,
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res: Response,
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next: NextFunction
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): void {
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if (!req.user) {
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res.status(401).json({ success: false, error: 'Nicht authentifiziert' });
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return;
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}
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const userPermissions = req.user.permissions || [];
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// Admins and employees can access all customers
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if (
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userPermissions.includes('customers:read') ||
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userPermissions.includes('customers:update')
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) {
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next();
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return;
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}
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// Customers can only access their own data
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const customerId = parseInt(req.params.customerId || req.params.id);
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if (req.user.customerId && req.user.customerId === customerId) {
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next();
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return;
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}
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res.status(403).json({
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success: false,
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error: 'Kein Zugriff auf diese Kundendaten',
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});
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}
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