Phase 3, Task 3.1. Three cookies:
- hermes_session_at: OAuth access token (HttpOnly, TTL = token TTL)
- hermes_session_rt: OAuth refresh token (HttpOnly, 30d max-age)
- hermes_session_pkce: PKCE state + verifier + provider hint (10min)
All SameSite=Lax + Path=/. Secure flag is set ONLY when the request
scheme is https — uvicorn proxy_headers=True (enabled in gated mode at
Phase 3.5) rewrites scheme from X-Forwarded-Proto so Fly's TLS
terminator works.
Phase 1, Task 1.4. Records every auth event (login start/success/failure,
logout, refresh success/failure, revoke, session verify failure, WS
ticket mint) as one JSON object per line. Token-like kwargs (access_token,
refresh_token, code, code_verifier, state, ticket, cookie, Authorization)
are dropped before serialisation so the log never contains live secrets.
Write failures log at WARNING but never raise — auth flows must not fail
because the audit logger broke.
Phase 1, Task 1.1. New package hermes_cli/dashboard_auth/ contains:
base.py - DashboardAuthProvider ABC with 5 abstract methods
(start_login, complete_login, verify_session,
refresh_session, revoke_session), Session + LoginStart
frozen dataclasses, three exception types
(ProviderError / InvalidCodeError / RefreshExpiredError),
and assert_protocol_compliance() for plugins to call
in their own tests.
registry.py - Module-level register/get/list/clear with a lock.
Nothing reads the registry yet — Phase 2 adds the StubAuthProvider and
Phase 3 wires the gate middleware. The plugin hook lands in Task 1.3.
