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Author SHA1 Message Date
Ullrich Schäfer
e268aeec10
Archive unify-auth-completion + sync spec delta (task 5.1) 
Applies the ADDED requirement from
openspec/changes/unify-auth-completion/specs/authentication-methods/
into openspec/specs/authentication-methods/spec.md:

- Single web auth completion chokepoint (completeAuth at
  apps/journal/app/lib/auth/completion.server.ts) with five scenarios
  covering passkey register/login finish, magic-link verify-code,
  magic-link click-through, and returnTo sanitization.

Path in the synced requirement is .server.ts (the post-rename name),
not the .ts the delta originally captured.

Change moved to openspec/changes/archive/2026-05-08-unify-auth-completion/.
15/15 tasks complete.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-05-08 03:02:51 +02:00
Ullrich Schäfer
d64c47614d
Implement completeAuth chokepoint + caller migration 
Implements all of unify-auth-completion (12/14 tasks done; manual
smoke + archive-time spec sync remain).

Design refinement during implementation: completeAuth supports two
response shapes via a `mode` parameter:
- mode: 'redirect' (loaders / direct browser navigation; auth.verify.tsx)
- mode: 'json' (action handlers called by imperative fetch from
  client forms; api.auth.login, api.auth.register)

Both modes share createSession + safeReturnTo + Set-Cookie. JSON mode
carries `{ ok: true, step: "done", redirectTo }` (the `step` field
preserves the existing client-form check).

Why two modes: passkey ceremonies are inherently imperative
(start → browser WebAuthn API → finish), so action handlers can't
move to <Form>/useFetcher. Picking option (B) from the design grill —
the chokepoint owns destination selection while clients navigate —
required this dual shape. The 3 hardcoded client-side targets
(returnTo ?? "/", "/", "/?add-passkey=1") collapse into 1 server-side
sanitization pass (safeReturnTo) inside completeAuth.

New module:
- apps/journal/app/lib/auth/session.ts: cookie session storage
  (sessionStorage, createSession, getSessionUser, destroySession)
  moved from auth.server.ts. Legacy import path kept via re-exports
  with @deprecated JSDoc.
- apps/journal/app/lib/auth/completion.ts: completeAuth + safeReturnTo.
- apps/journal/app/lib/auth/completion.test.ts: 10 contract tests
  covering both modes, returnTo sanitization (path-relative, protocol-
  relative, absolute-URL, malformed), Set-Cookie attachment, redirect
  status, JSON shape.

Caller migration:
- api.auth.register.ts passkey-finish → completeAuth(json)
- api.auth.login.ts finish-passkey → completeAuth(json)
- api.auth.login.ts verify-code → completeAuth(json)
- auth.verify.tsx magic-link consumer → completeAuth(redirect)

Client form updates:
- auth.login.tsx: pass returnTo in fetch body, read result.redirectTo
  on done.
- auth.register.tsx: pass returnTo: "/?add-passkey=1" for the magic-
  link verify-code path (preserves the post-register passkey prompt
  via the chokepoint's safeReturnTo, instead of hardcoding it
  client-side).

Verified:
- pnpm typecheck && pnpm lint: green across all 15 workspaces.
- pnpm --filter @trails-cool/journal test: 126 passed.
- pnpm test:e2e auth: 4/4 passed without modification — confirms the
  refactor is behaviour-preserving for the user-facing flows that
  matter most (passkey register + login).

Spec delta in openspec/changes/unify-auth-completion/specs/ applies at
/opsx:archive time.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-05-08 02:38:15 +02:00
Ullrich Schäfer
7e22f1260b
Add unify-auth-completion architecture artifacts 
Extract the post-verify orchestration shared across passkey
register-finish, passkey login-finish, magic-link verify-code, and
magic-link click-through into a single completeAuth function. Two
ADRs record the decision:

- ADR-0004: centralize web auth completion (record terms + create
  session + redirect) in apps/journal/app/lib/auth/completion.ts.
- ADR-0005: explicitly no AuthMethod polymorphism. Passkey + magic-
  link is the entire identity surface; OAuth2/PKCE is session
  transport, not a peer method. Recorded as a negative decision so
  future architecture passes don't re-suggest extracting the
  interface.

CONTEXT.md gains an Authentication section covering completeAuth, the
two methods, the OAuth2-as-transport distinction, and where the Terms
gate enforcement lives (root loader for web, requireApiUser for API
per the just-merged mobile-terms-gate).

OpenSpec change unify-auth-completion captures the proposal, design
(5 decisions including the negative-scope choices), spec delta on
authentication-methods, and 14 tasks. Implementation follows on this
branch.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-05-08 02:18:06 +02:00