bilhej/frontend/src/utils/jwt.ts
Joakim Mörling 8d07bb7ab1 feat: add Vue Router auth guards with admin role support
Implement client-side route protection with role-based access control. The auth
store now extracts the role claim from JWT tokens and exposes isAdmin. Router
guards enforce three levels of access: guestOnly (redirect authenticated users),
requiresAuth (redirect unauthenticated to login with redirect param), and
requiresAdmin (redirect non-admin users to home).

Changes:
- utils/jwt.ts: JWT payload parser using base64url decode (new file)
- authStore: add role ref, isAdmin computed, extractRole from JWT payload
- router: add route metadata (requiresAuth, requiresAdmin, guestOnly) and
  beforeEach guard with getActivePinia() safety for test environments
- OrdersPage.vue, AdminPage.vue: placeholder pages (new files)
- LoginPage.vue, RegisterPage.vue: use route.query.redirect after auth
- Router.spec.ts: 14 tests covering all guard scenarios
- authStore.spec.ts: tests for role extraction, isAdmin, role persistence
- LoginPage.spec.ts: test for redirect query param after login
- auth-guards.spec.ts: 7 Playwright E2E tests for guard behavior
- login.spec.ts: fix seed user credentials (test@bilhalsning.se)
2026-05-14 12:39:17 +02:00

22 lines
521 B
TypeScript

export interface JwtPayload {
sub?: string
role?: string
exp?: number
iat?: number
}
export function parseJwtPayload(token: string): JwtPayload {
try {
const base64Url = token.split('.')[1]
const base64 = base64Url.replace(/-/g, '+').replace(/_/g, '/')
const jsonPayload = decodeURIComponent(
atob(base64)
.split('')
.map((c) => '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2))
.join(''),
)
return JSON.parse(jsonPayload)
} catch {
return {}
}
}