Encrypt MedicationSideEffect.notes, MedicationDoseChange.note and
MedicationInventoryItem.notes with AES-256-GCM, closing the last plaintext
PHI columns left after the v1.23 note-encryption rollout. Add the three
*Encrypted Bytes columns (migration 0208), register them in the encrypted-
column rotation set, route every read/write through the note cipher, and add
a transactional fail-closed boot-time backfill for legacy rows. Plaintext
columns drop in a later release once the backfill reports zero remaining rows.
Require a fresh second factor on password change for MFA-enrolled accounts,
matching the existing step-up on MFA-disable and recovery-code regen. Redact
free-text note values from the Zod validation excerpt that can reach a wide
event.
Combine the remote MCP server (stdio + remote /mcp + OAuth 2.1 + read
tools + deep-value reads + a confirmed, audience-bound write surface)
with the v1.23 account-security line (MFA, known/trusted devices,
free-text note encryption).
- schema: keep every v1.23 User relation (MFA, known/trusted devices)
alongside the McpOAuthConnection relation; the MeasurementSource enum
carries the MCP value.
- api-handler: the MCP audience guard (a token scoped to
health:read/health:write is bound to /mcp and refused a REST write)
and the step-up MFA helpers coexist.
- maintenance queues: register the MCP token-cleanup sweep next to the
note-encryption backfill and key-rotation queues; shift it to 04:00
so the two daily discovery ticks do not collide.
- migrations: renumber the MCP migrations to 0206/0207 so they follow
the v1.23 chain (0199-0205).
- MCP mood writes route the note through the v1.23 at-rest cipher.
Lay the account-security and data-sovereignty substrate for v1.23. No
user-facing behaviour yet — schema, crypto registry, redaction, and the
note-encryption data path only.
Schema + migrations:
- 0199 — User totp_secret_encrypted / totp_confirmed_at / mfa_enforced /
passkey_upgrade_nudge_dismissed; Session mfa_verified_at / last_active_at;
Passkey last_used_at. All additive, nullable / defaulted.
- 0200 — mfa_challenges (single-use step-up ticket; only the ticket hash is
stored, so no session or token is ever minted before the second factor),
mfa_recovery_codes (Argon2id at rest), webauthn_mfa_credentials (second-factor
keys, kept separate from passkeys, which remain the passwordless-primary set).
- 0201 — mood_entries.note_encrypted + measurements.notes_encrypted (BYTEA),
matching the existing free-text encrypted-note convention.
Free-text health notes:
- New writes encrypt the mood / measurement note into the *_encrypted column and
null the legacy plaintext column; reads prefer the ciphertext and fall back to
plaintext only for not-yet-migrated rows, via a single read/write helper.
- A boot-time job migrates existing plaintext rows in an idempotent,
transactional, fail-closed pass (encrypt, then null the plaintext, per row in
one transaction; safe to re-run; a row with content is never left both-null).
- The legacy plaintext columns are kept this release and dropped in a follow-up
once the backfill reports zero remaining rows — the same boundary the
key-rotation playbook uses before dropping a legacy key.
Crypto coverage:
- Register the three new encrypted columns and wire them into the key-rotation
script so a rotation never orphans them.
- Extend the observability and log redaction denylists so TOTP secrets, MFA /
recovery / backup codes, and export passphrases never reach a wide event.
Let a remote MCP client (Claude.ai, ChatGPT) self-register and connect to
the `/mcp` endpoint over OAuth 2.1 + PKCE, bridged onto the existing `hlk_`
Bearer model — no parallel identity store.
- Discovery: RFC 9728 Protected Resource Metadata and RFC 8414 Authorization
Server Metadata at `/.well-known/oauth-protected-resource` and
`/.well-known/oauth-authorization-server` (added to the proxy allowlist).
- `/api/mcp/oauth/authorize` — consent gate backed by the existing session;
a code is only issued on an authenticated POST decision, never on a GET.
- `/api/mcp/oauth/token` — authorization-code and refresh-token grants with
mandatory PKCE S256, single-use codes, and rotating refresh tokens. The
access token is an ordinary short-lived `hlk_` token scoped `health:read`.
- `/api/mcp/oauth/register` — RFC 7591 DCR fallback; CIMD (SEP-991) is the
preferred path and resolves client metadata through `safeFetch`.
- Audience binding (RFC 8707): every token is bound to the canonical `/mcp`
resource URI; a mismatched `resource` is rejected at authorize and token.
- The grant artifacts (code, refresh, DCR client id) are HMAC-signed,
self-describing, and domain-separated; the central log redactors scrub
them plus the PKCE verifier.
Extend the self-cleaning Telegram bot beyond medication. A mood reminder
now carries a 1-5 inline keyboard plus a "Note..." force-reply and a
"Later" action; a tap logs a MoodEntry (source TELEGRAM, server-side,
user resolved from the linked chat, idempotent on a per-tap externalId)
and confirms with a calm callback toast, no chat echo. An optional
free-text note attaches to that entry via the prompt-context correlation.
A measurement reminder carries "Done" (satisfies the cadence) and
"Later" (pushes nextDueAt forward) — completion and snooze only, no value
capture.
Prompts and replies self-clean in ~30 minutes: the window drops from 1h
and moves to a shared helper, the sender schedules an unanswered prompt's
deletion at send time, and the existing 15-min sweep also prunes expired
prompt-context rows. The webhook keeps the shared-secret + timingSafeEqual
+ rate-limit-before-secret posture; every write callback authenticates via
the stored chat binding. The Telegram chat id is added to the egress
redaction denylist.
The webhook shared secret lives only inside the AES-GCM-encrypted channel
config blob and the GET masks it, so no current path excerpts it into a
wide event. Add headervalue to the sensitive-key denylist as defence in
depth: if a future change ever routes a webhook body through the payload
diagnostic, the secret redacts instead of landing verbatim. The Live
Activity push token is already covered by the token pattern.
Production showed multi-second windows where every response — routes,
RSC payloads, static assets — waited together while handler durations
stayed under half a second: the process stalled, and nothing
route-shaped could name it. A self-rescheduling tick now records how
late it fires; a tick past the stall threshold emits its own
event_loop_stall background event, and every wide event carries the
recent worst lag so the first request finishing after a stall is
annotated with it. Measured via a timeout chain rather than
perf_hooks.monitorEventLoopDelay — the histogram's sampling timer races
a sibling read-and-reset interval in the same timers phase and the
stall sample can vanish into the reset window.
Address the second-round audit (server cluster):
- AVOID_PREGNANCY surfaces the fertile window, so it must carry the
stronger "not a contraceptive method" disclaimer — wire the existing
strong copy via a shared cycleDisclaimerKey(goal), server and client.
- Re-anchor the FOLLOWING neighbour cycle on a back-filled period start so
an inserted-between-two-cycles start no longer leaves a stale open cycle.
- Resolve the sensitive-category encryption flag once per bulk/import
batch instead of re-reading the profile per day; hoist the bulk cycle
attribution in-memory (no per-entry query).
- Drop the raw driver message from the bulk wide-event meta (annotate meta
is not run through the central redactor); keep the stable reason + code.
- Hard-purge now clears the cycle audit trail and the cycle reminder rows
in the push-attempts ledger, so no dated reproductive trace survives.
- Discreet mode collapses the Web-Push coalescing tag and drops cycle
metadata (phase) from APNs, matching the existing APNs event collapse.
- Add the reproductive intent field names to the central redactor denylist.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The wide-event `received_shape_excerpt` surface walks every body key
through `SENSITIVE_KEY_PATTERNS` before the eventual JSON.stringify.
The original set covered passwords, tokens, secrets, API keys, the
Authorization header, CSRF state, and nonces. Four additions worth
keeping out of observability sinks:
- `/passphrase/i` — backup-encryption passphrases (off-host backups
use one) and any future user-facing recovery-phrase flows.
- `/otp/i` — TOTP / email-OTP one-time codes for future second-factor
surfaces.
- `/recovery/i` — passkey-recovery codes and account-recovery flows.
- `/dsn/i` — Glitchtip / Sentry-style DSNs are `https://<key>@host`
shapes where the key is auth material; today they enter the system
via admin settings but a future debug surface might quote one back
in a body excerpt.
Test pins the four new patterns alongside the existing required set,
and a positive-redaction case covers all four in one shot.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Bundles the deferred v1.4.47 Mediums + Lows with the v1.4.48-deferred items
into a single release. Headline: server-side suppression of MEDICATION_REMINDER
APNs for iOS clients that own their local reminders (closes GH #206), a
push_attempts table backing /api/admin/notifications/diagnostic, and a sweep
of v1.4.48 QA forward-findings.
Performance (the user-visible win):
- /api/analytics cold-fallback path splits the heavy single-statement
aggregate into two parallel queries. The linearly composable columns
(count / min / max / mean) keep the full-partition scan; the windowed
7 / 30 / 90-day avg / slope / r² columns take a 90-day outer cap so
the planner does an index range scan on (user_id, type, measured_at)
instead of a full-partition sequential scan. Output is bit-identical;
cold slim slice drops from multi-second to sub-second on tenants with
large measurement partitions.
Server-side notifications:
- GET + PATCH /api/auth/me/notification-prefs with deep-merge semantics.
Initial category medication.clientManaged: boolean (default false). Cron
medicationReminderJob skips dose-due APNs when the flag is true,
emitting a medication_reminder.suppressed_client_managed wide-event
annotation per skip.
- push_attempts table backs the diagnostic endpoint. Every APNS /
Web-Push / Telegram / NTFY sender writes a fire-and-forget row.
Daily 03:35 Europe/Berlin cleanup prunes rows older than 90 days.
- /api/admin/notifications/diagnostic — admin-only endpoint surfacing
device APNs token presence (masked), channel config presence, and
recent push attempts. Registered in OpenAPI.
- Per-channel APNs "Send test" button now fires with
eventType: "MEDICATION_REMINDER" so the dispatcher's time-sensitive +
priority-10 branch runs. A successful self-test now exercises the
exact path production reminders take; an unsuccessful one points the
user at iOS Settings → Time Sensitive Notifications rather than
appearing to be a server-side bug.
Withings reliability:
- OAuth callback consumes the nonce atomically (delete-first with
P2025 catch for the replay branch). The previous read-then-delete
pattern allowed a race between two concurrent callbacks.
- ?reason=state redirect differentiated into csrf1 / replay / expired /
cross_user so operators can tell mismatch types apart without DB
shell access.
- connect endpoint rate-limited to 10/60s/user; row-create failures
redirect to a consistent error surface.
Observability hardening:
- redactSensitiveFields(body) denylist helper covers password / token /
secret / apiKey / authorization / csrfState / nonce, recursive,
case-insensitive. Caught: /api/devices invalid_format issues were
echoing apnsToken values verbatim into the audit log.
- sanitiseZodIssues(issues, { stripValuesFromMessage: true }) overload
applied to 14 audit-log sites.
Migrations: 0079 (notification_prefs), 0080 (push_attempts).
Tests: 4815 → 5272 unit + integration. Workout-batch integration suite
that had been red on main since v1.4.45 (three release commits shipped
through it) now green again — updated to match v1.4.42 cross-source
dedup semantics.
Resolves PR #207.
Marc-André Bombeck