The admin key used to stay in the URL fragment and was sent with every
request. Now the key is exchanged once for a server-side session:
- POST /api/admin/login {key} sets bingo_admin=<random token>
(HttpOnly, Secure, SameSite=Strict, no Path so it is scoped to the
admin API directory, also behind a subpath proxy)
- POST /api/admin/logout ends the session
- sessions live in memory as sha256(token) -> expiry, absolute lifetime
ADMIN_SESSION_HOURS (default 8); restart logs everyone out
- /admin#k=KEY still works as a login link; the page strips the fragment
from the URL and history before logging in, then shows plain /admin
- wrong key answers 401 after 500 ms; Bearer header still works for scripts
- COOKIE_SECURE=0 for plain-http testing only
Tests: 11 passing (login, cookie flags, logout, expiry, admin disabled).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FhHiznVwtQ55ZSguTBWrxn
