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fix(auth): scope the home-domain ok cookie to the signed-in user (#2083)

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The gnubok-home-ok cache cookie stored only the host, so any account that
signed in within the 15-minute TTL window inherited the previous user's
"this is home" verdict in the same browser and skipped the brand-host
bounce entirely: a user with no ties to a white-label brand could land
inside the branded shell instead of being redirected to the canonical
domain (amnas account-switch repro, two logins 9 s apart).

The cookie value is now userId~host and the middleware only skips the
affinity check when both match the current session. Old host-only cookies
never match, so the check re-runs and the format self-migrates; no
sign-out hook is needed because a foreign verdict misses by construction.


Claude-Session: https://claude.ai/code/session_01EBJAE7b6B64HaKybjaC66B

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Mattsson
2026-08-31 14:58:17 +02:00
committed by GitHub
co-authored by Claude Fable 5
parent 6dfaa45061
commit fc54e79e08
3 changed files with 60 additions and 14 deletions
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DECISIONS.md
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@@ -1384,4 +1384,5 @@ One line per decision: `[YYYY-MM-DD] <decision>: <why>`. Appended by agents and
[2026-08-31] Login/register methods come from GoTrue (/auth/v1/settings + admin customProviders) instead of app-side flags; NEXT_PUBLIC_GOOGLE_AUTH_ENABLED removed (PR #1869): the Supabase dashboard becomes the single switch, an allowlist of auth-js provider ids filters non-login entries like anonymous_users, and hosted rendering is unchanged because Google is enabled in prod GoTrue. The Vercel env var stays set for old-build rollback safety; delete it after a few deploys.
[2026-08-31] Single prominent amount is PROMOTED into editable totals.total (totalSource='prominent') instead of living in a read-only Belopp row: Emil's call, an uncorrectable load-bearing value violated the prefill-override-editors rule. Provenance keeps matching fallback-grade (discount, date guard, hunt exclusion); a user edit of TOTALT clears the stamp. Multi-amount docs keep the Belopp row: promoting one of several figures would invent a total.
[2026-08-31] Image-scan red fixed by bumping the node:22-alpine digest (alpine 3.23 to 3.24.1), not by widening the gate: the Dockerfile's apk-upgrade layer is frozen by the GHCR buildx layer cache, so a fix published after the last cache-busting change (libssl3 3.5.8-r0 for CVE-2026-14456) never reaches the published image until the FROM digest moves; the red scheduled scan is the designed alarm for exactly this bump. cron.Dockerfile gained the same apk upgrade (it had none).
[2026-08-31] gnubok-home-ok cache cookie is user-scoped (userId~host) instead of cleared on sign-out: sign-out happens client-side via supabase.auth.signOut so no server surface reliably sees it, while a value bound to the session's user makes any inherited verdict miss the cache by construction. Separator ~ because it is unreserved under encodeURIComponent AND a legal raw cookie octet, so the value round-trips identically whether or not the cookie layer percent-encodes. Old host-only cookies never match and self-heal; found via the amnas account-switch repro (two logins 9 s apart shared the verdict).
[2026-08-31] Bookkeeping digest email is per-user per-COMPANY per-day (not one aggregated mail across companies): notification_log.company_id anchors the claim, subject lines stay unambiguous, and most users have one company; consultants can opt in and get one short mail per client. Window is a fixed last-24h (cron cadence) rather than tracking last-sent state. Settings toggle stays hardcoded Swedish like the rest of the push-notifications extension UI (no next-intl wiring in extension components); revisit if that surface is ever translated.