Read calendar event creators from the admin module, and archive the old ones #14

2026-09-06T21:09:48Z

Paddy commented

2026-09-06 21:09:48 +00:00

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Paddy added 4 commits 2026-09-06 21:09:48 +00:00

Read calendar event creators from the admin module, and archive the old ones 61d3883479

Steps 1 and 3 of docs/calendar-auth-migration.md. The calendar is the last
module still authenticating against its own users/sessions tables; this is
the groundwork that lets step 4 swap it for the shared admin identity.

An event now records its creator twice: created_by_id, the legacy INT into
the calendar database's own users table, and created_by_user_id, the admin
module's VARCHAR(36) id. The two live in different databases, so there is no
foreign key and no join - a cross-schema reference would tie the schemas'
lifecycles together, and the name is instead resolved through one lookup per
result set against the admin database.

The creator is only ever rendered as a name; nothing authorises on it. That
is what makes the planned account backfill unnecessary - dropped by decision -
and what makes the read degrade rather than fail: an admin id that no longer
resolves falls back, and an unreachable admin database costs a name rather
than the response. The public calendar is read anonymously by nachklang.art
and has never depended on the admin database being up.

Since there is no backfill, step 5 dropping the legacy users table would have
erased the authorship of every pre-cutover event. Migration 002 brings that
part of step 5 forward and snapshots the names onto the events themselves, so
the data is safe well before the table holding it goes away.

The same SELECT and row mapper existed in four copies; collapsed to one of
each first, so the dual read is written once rather than four times.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Move the calendar onto the shared session cookie b848d6eab9

Step 4 of docs/calendar-auth-migration.md, and the close of
DEFERRED_SECURITY.md item 1: no calendar route reads sessionId/sessionKey from
the query string any more, so a live credential no longer travels through
access logs, browser history and Referer headers.

The four write routes sit behind requireAppAccess('calendar'), which also
narrows who may edit from "any activated @nachklang.art account" to an
explicit per-user permission. They answer 401 signed out and 403 without the
permission, where they previously answered 403 for both.

The three read routes cannot use the middleware: one URL serves an anonymous
visitor, an iCal subscription holding a shared password, and a signed-in
editor who should see drafts. They resolve the session optionally instead, and
a signed-in user without the calendar permission is treated as anonymous
rather than refused - so they keep the public calendar access anyone has.

That public calendar staying anonymous is load-bearing: nachklang.art reads it
to show the next upcoming event. It is now pinned at both the password-table
and the route level, and so is the rule that a shared password can never be
used to write.

credentials.service.ts loses its session half and becomes the password table
it always wanted to be. The shared passwords survive only for iCal clients,
which cannot send a cookie.

Writes record the author as an admin user id and no longer have a legacy int
to write, which is what migration 003 makes room for.

/calendar/users/* is left in place: nothing calls it and a session it mints
opens nothing, but they are still live password-accepting endpoints, so
removing them belongs with the rest of the legacy path in step 5.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Fold the pre-deploy review findings into the calendar cutover d960ac8e24

A fresh-context review before deploying found two things that would have
broken production, both in the runbook rather than the code.

The deploy order named only migration 003. Production has none of the three -
001 and 002 were only ever applied to the dev database - and the new API reads
the columns they add on every request, so following it literally would have
500'd every calendar call including the anonymous feed the public website
uses. Step 4 now carries a numbered checklist with a verification query.

APP_ORIGINS replaces the code's default list rather than adding to it, so
naming calendar.nachklang.art in DEFAULT_APP_ORIGINS is not enough if that
variable is set on the vhost - and its failure mode is the quiet one the
config already warns about, where everything works except sign-out. Added to
the same checklist.

Also from the review:

The two operands of the read guard on /json/next and /ical were swapped so the
password check short-circuits first. They are side-effect free, so the order
was free - but the old one put an admin-database query in front of the public
feed for any caller holding a .nachklang.art cookie, which is a dependency
that feed has never had. Two tests now assert the admin database is not
consulted at all.

/:calendar/json/next had no route-level test, despite being the endpoint the
public website actually calls and the property named as load-bearing. Covered
now, along with the rest of its credential matrix.

Migrations 001 and 002 gained IF NOT EXISTS. They are applied by hand with no
tracking table, so a partial re-run should be a no-op rather than an error
that aborts the rest of the paste. Verified by applying all three twice to a
throwaway container and diffing against the dev schema.

Swagger: two descriptions still claimed authentication was required where the
public calendar needs none, the calendar enum omitted `birthdays`, and a
`createdBy` request-body field was documented and read but never persisted -
misleading in a way that suggests a client can set authorship. Removed. The
CORS comment describing the calendar's query-parameter sessions is no longer
true and was rewritten.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Scope step 5 of the calendar migration, and gate it on step 4 being live b4c8c91795

Step 5 removes the legacy path, so it removes the fallback step 4 still leans
on: the join that renders the author of every pre-cutover event, and the
routes an old cached bundle talks to. Building it before step 4 has been
deployed and watched turns a recoverable deploy into an unrecoverable one, so
this records the shape rather than implementing it.

Two decisions worth having in the runbook rather than in someone's memory.
The legacy calendar user module gets deleted outright rather than unmounted -
a survey confirmed nothing outside that directory imports it, and it is the
API's last unauthenticated account-creation and mail-sending endpoint. The
users and sessions tables get renamed aside rather than dropped: the display
names are already snapshotted so nothing visible depends on those rows, but
they still hold e-mail addresses and password hashes, and a rename makes them
unreachable without destroying anything.

Also notes the two consequences worth accepting deliberately: activation links
already in inboxes become 404s, and createdById leaves the wire format.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Paddy merged commit 13a0c07d1b into master

2026-09-06 21:12:17 +00:00

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Reference: Nachklang/API#14