fix: seed builtin admin only on empty DB; recover page-load sessions with one refresh

Auth seeding (last-resort guard)
- `_seed_builtin_admin()` in get_db() now skips when
  VACUUM_WALL_SEED_BUILTIN_ADMIN=0 or when the users table already
  contains any user — previously a fresh service start after a non-default
  bootstrap (e.g. --mgmt-user alice) seeded a hard-coded `admin` with an
  unrecoverable random password, shadowing the operator's account
- bootstrap_auth.py sets VACUUM_WALL_SEED_BUILTIN_ADMIN=0: bootstrap
  creates the operator user itself on a fresh install, so exactly one
  account exists and no seeded admin can appear

Frontend (session recovery)
- on page load/restore the in-memory TTL timer is gone, so a valid
  7-day refresh token could sit in sessionStorage while the access token
  is already expired server-side: the session `check` now attempts
  exactly one refresh (POST /api/auth/refresh with the stored refresh
  token) on 401 before treating the session as dead
- extract shared `_doRefresh()` used by both the `check` 401 fallback and
  the `refresh` action (removes the duplicated rotation logic)

Tests
- update seeding tests to the new any-user-present check; add
  test_seed_skipped_when_users_exist, test_seed_skipped_via_env,
  test_bootstrap_flow_creates_exactly_one_user, and the auth-model JS
  test suite (tests/test-auth-model.js)

Docs
- AGENTS.md: document VACUUM_WALL_SEED_BUILTIN_ADMIN
- architecture.md / hoover.md / security.md: describe the bootstrap
  check 401 → one-refresh fallback path
This commit is contained in:
2026-08-17 23:56:54 +00:00
parent 0ed275835d
commit 183904faad
9 changed files with 343 additions and 43 deletions
+1 -1
View File
@@ -96,7 +96,7 @@ JWT-based authentication replaces HTTP Basic Auth for the management WebUI. The
1. **Login**: User submits credentials via `POST /api/auth/login`. The daemon verifies the password hash (Argon2id) against `data/auth.db`. On success, an access token (15 min) and refresh token (7 days) are issued.
2. **Validation**: Every request to Flask includes `Authorization: Bearer <token>`. The `before_request` middleware validates the token signature, checks expiry, queries the SQLite `token_blacklist` table, and verifies per-subsystem permissions.
3. **Auto-refresh**: Before the access token expires, the frontend's `refreshScheduler()` calls `POST /api/auth/refresh` with the refresh token. The old refresh token is blacklisted and a new pair is issued.
3. **Auto-refresh**: Before the access token expires, the frontend's `refreshScheduler()` calls `POST /api/auth/refresh` with the refresh token. The old refresh token is blacklisted and a new pair is issued. At page load/restore, if the stored access token is rejected (401) on the session check, the frontend performs exactly one refresh from the stored refresh token before falling to the login page.
4. **Blacklist**: On logout (`POST /api/auth/logout`), password change, or user deletion, the affected token's `jti` is inserted into `token_blacklist`. On refresh rotation the old refresh token's `jti` is blacklisted and the new token replaces the stored row in `refresh_tokens`. One row per user means each user has a single active refresh session: a refresh from a second tab overwrites the first tab's row, and logout blacklists whichever token is currently stored. Expired blacklist entries are cleaned by the daemon's polling loop (default 60s) and by a probabilistic check inside `blacklist_token()`.
Token theft protection: