- Add response object to mockSuccess() in login and signup tests so
response.headers.get() no longer throws
- Validate ?redirect= param: must start with / and not // to prevent
redirecting users to external domains
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Three root causes fixed:
1. CSRF blocked all backend POSTs — Spring Security's CSRF filter ran
before permitAll() authorization, returning 401 for signup and login.
Disabled CSRF since SvelteKit is the only client (never the browser
directly) and handles its own CSRF via Origin header checks.
2. Login/signup didn't establish Spring Security authentication — they
stored email in the HTTP session manually but never set the
SecurityContext, so Principal in /v1/auth/me was always null and
hooks.server.ts redirected every authenticated request to /login.
Fixed with authenticateInSession() helper that sets and persists
the SecurityContext under SPRING_SECURITY_CONTEXT_KEY. Login also
now invalidates the old session before creating a new one to prevent
session fixation.
3. redirect() missing throw in hooks.server.ts, signup action, and
login action — SvelteKit never saw the redirect, so pages silently
reloaded with no navigation. Also forward JSESSIONID from backend
response to browser explicitly, since SvelteKit does not
auto-forward Set-Cookie for cross-origin server-side fetches.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
POSTs to /v1/auth/login, validates email/password server-side,
redirects to ?redirect param or /planner on success.
Returns generic error on bad credentials to prevent enumeration.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
