The subprocess-booting test suites hand-picked fixed ports in a cramped ~3955-4021 range, and
156-schedule-read-path deviated to a RANDOM port (3900 + rand%90) that overlapped those fixed
ports. Under CI load two servers could race on the same port, surfacing as flaky "no such table:
devices" / "FOREIGN KEY constraint failed" (a server answering a request against a half-migrated
or wrong DB). It's environmental — the suites pass locally and in isolation.
Fix: a shared test/helpers/free-port.js (bind :0 on loopback, read the OS-assigned port, release)
called in before() so every suite gets a guaranteed-unique ephemeral port — concurrent suites can
no longer collide, and no one has to hand-assign ports.
- Codemod converted 30 suites: const PORT = <fixed|random> -> let PORT (+ BASE) assigned via
`PORT = await freePort()` at the top of before().
- 3 hand-fixed (different structure): 148-eviction-storm (lowercase `base`), boot-health (no
before() — allocates PORT + a throwaway SEED_PORT inside the test, replacing the hardcoded
3894), totp-keyrotation (no before() — allocates at the test start before bootServer()).
No fixed 39xx/40xx ports remain. Full server suite 435/435; the 4 hand-touched suites pass in
isolation. Pure test-infra change — no app code touched.
Highest-priority #143 item (operator finding from Bold): nulling a device's token
did NOT lock it out — device 75c2a08a immediately reconnected and saturated the
loop. Two distinct defects:
1. Auth short-circuit (the cause). device:register used
if (device.device_token && !validateDeviceToken(...)) { reject }
so a NULL/empty STORED token made the guard falsy -> validation SKIPPED, and the
next block even MINTED a fresh token and persisted it. Nulling a token thus
RE-PROVISIONED the device instead of locking it out. Fix: drop the
`device.device_token &&` guard -> `if (!validateDeviceToken(device_id, device_token))`
(validateDeviceToken already returns false for null-stored/missing/mismatch), and
remove the legacy "mint a token for a null-token device" path (the re-provision
vector). An already-provisioned device (every row, incl. 'provisioning', is created
WITH a token) presenting null/empty/invalid is now REJECTED + disconnected.
The first-pairing seam is unaffected: a brand-new device has NO device_id and goes
through the pairing_code branch (which mints id+token) — a different code path.
2. No server-side kill switch. Added a `blocked` column (devices.blocked INTEGER
NOT NULL DEFAULT 0; schema.sql + a database.js migration). The block is the FIRST
gate at the top of device:register — before the fingerprint block, the reconnect
throttle, any DB writes, or playlist build — so a blocked device's socket is
refused immediately (auth-error 'Device blocked' + disconnect, zero further work).
It does NOT rely on null-token (the thing that failed). The row is re-read every
register, so a DIRECT SQLite edit takes effect on the device's NEXT reconnect with
NO server restart. Operator statements (dashboard-down, hand-edit):
block: UPDATE devices SET blocked = 1 WHERE id = '<device_id>';
unblock: UPDATE devices SET blocked = 0 WHERE id = '<device_id>';
Tests (port 3987): nulled-token provisioned device is REJECTED (75c2a08a repro);
blocked=1 refused at the first gate (no register/playlist); unblock reconnects;
first-pairing still works; normal valid-token device unaffected. Full suite green
serial AND parallel (213); reconnect-throttle.js + the dbac699 content-ack limiter
untouched.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
