bilhej/frontend/src/stores/authStore.ts
Joakim Mörling 81e3968e31
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Log out users automatically when their JWT expires.
Previously an expired token left the frontend in a stuck state: the
router guard only checked token presence (never the exp claim), so the
user could still navigate to protected pages, and every API call then
failed with a generic Swedish "Kunde inte hämta…" message while the
header kept showing the logged-in UI. There was no global response
interceptor, and the backend returned an ambiguous 403 (no body) for
unauthenticated requests because no AuthenticationEntryPoint was
configured, making 403 mean both "no/invalid token" and "forbidden".

Backend:
- Add an AuthenticationEntryPoint in SecurityConfig that returns 401
  with a Swedish {"message": ...} ErrorResponse body for
  unauthenticated/expired-token requests, and an AccessDeniedHandler
  returning 403 with the same body shape for genuine authorization
  failures. This makes 401 = not authenticated/expired and
  403 = authenticated but forbidden, the standard REST convention.
- Make JwtService(String, long) constructor public so integration
  tests can mint expired tokens (was package-private).
- Update the 6 no-auth controller tests from 403 to 401
  (OrderControllerTest, AdminControllerTest, PaymentControllerTest,
  AuthControllerTest change-password/change-email) and assert the
  message body exists; keep shouldReturn403ForNonAdminUser as 403.
- Add OrderControllerTest.shouldReturn401WithSwedishMessageWhenTokenExpired
  (expired JWT via TTL -1000ms) and shouldReturn401WithMessageWhenNoAuthHeader.

Frontend:
- Add isTokenExpired() to utils/jwt.ts using the previously-unused exp
  claim, and expose it on the auth store.
- Add a global 401 interceptor in api/client.ts: on a 401 from any
  non-/auth/ endpoint, call auth.logout() and redirect to
  /logga-in?redirect=<currentPath>. Skip /auth/ so wrong-password 401s
  on login/change-password stay handled locally. Add isSessionExpired
  and isForbidden helpers for per-page catch blocks.
- Harden the router guard to reject tokens whose exp is in the past
  (logout + redirect to login with ?redirect=), and let expired-token
  users open /logga-in and /registrera instead of bouncing to home.
- Refactor the generic-error catch blocks on OrdersPage, EditOrderPage,
  ComposePage, PaymentRedirect, useAdminOrders, and useAdminOrderActions
  to skip the generic Swedish message on 401 (handled globally) while
  preserving wrong-password 401 handling on change-pw/email pages.

Tests:
- New frontend/src/__tests__/client.spec.ts covering 401 -> logout +
  redirect, 401 from /auth/ -> no logout, 403 -> no logout, no-token
  401 -> no redirect, and isSessionExpired/isForbidden helpers.
- Add authStore.spec.ts cases for isTokenExpired (no token, past exp,
  future exp, missing exp, after logout).
- Add Router.spec.ts cases for expired-token redirects, token clearing,
  future-exp access, and guest pages not bouncing expired users.
- Add OrdersPage.spec.ts case asserting 401 triggers no generic error
  and the global logout/redirect.
- New E2E expired-token.spec.ts (Docker) covering both the router-guard
  expired-token redirect and the API-401 redirect, with logged-out
  header and cleared localStorage assertions.
- Mock the API in two pre-existing fake-JWT E2E tests
  (auth-guards admin access, header-auth logout redirect) that broke
  because the backend now correctly 401s their unsigned test-sig tokens.

Verified with ./gradlew check (frontend lint + 267 unit tests, backend
tests + coverage, Flyway, 92 E2E tests in Docker) and ./gradlew coverage;
all coverage thresholds maintained (jwt.ts at 100%).
2026-06-17 12:43:31 +02:00

83 lines
2.1 KiB
TypeScript

import { defineStore } from 'pinia'
import { ref, computed } from 'vue'
import { register, login, changeEmail, confirmEmailChange } from '@/api/auth'
import { parseJwtPayload, isTokenExpired as isJwtExpired } from '@/utils/jwt'
export const useAuthStore = defineStore('auth', () => {
const token = ref<string | null>(localStorage.getItem('auth_token'))
const role = ref<string | null>(extractRole(token.value))
const isAuthenticated = computed(() => token.value !== null)
const isAdmin = computed(() => role.value === 'admin')
const email = computed(() => {
if (!token.value) return null
const payload = parseJwtPayload(token.value)
return payload.sub ?? null
})
function extractRole(jwt: string | null): string | null {
if (!jwt) return null
const payload = parseJwtPayload(jwt)
return payload.role ?? null
}
function isTokenExpired(): boolean {
return isJwtExpired(token.value)
}
function setToken(newToken: string) {
token.value = newToken
role.value = extractRole(newToken)
localStorage.setItem('auth_token', newToken)
}
function clearToken() {
token.value = null
role.value = null
localStorage.removeItem('auth_token')
}
async function registerUser(email: string, password: string): Promise<void> {
const response = await register(email, password)
setToken(response.token)
}
async function loginUser(email: string, password: string): Promise<void> {
const response = await login(email, password)
setToken(response.token)
}
async function changeUserEmail(
newEmail: string,
password: string,
): Promise<string | undefined> {
const response = await changeEmail(newEmail, password)
return response.testToken
}
async function confirmUserEmailChange(
token: string,
password: string,
): Promise<void> {
const response = await confirmEmailChange(token, password)
setToken(response.token)
}
function logout() {
clearToken()
}
return {
token,
role,
email,
isAuthenticated,
isAdmin,
isTokenExpired,
registerUser,
loginUser,
changeUserEmail,
confirmUserEmailChange,
logout,
}
})