Files
gbrain/test/e2e
Garry TanandClaude Opus 4.7 fed57f4db0 feat(oauth): federated_read read scope (#876)
Pre-fix, OAuth clients had a single source-scope axis (source_id, added
in v55). A client could either write+read one source OR be a super-reader
across all sources (via NULL source_id). There was no middle ground —
WeCare-style L3 dept clients that need to write to dept-x but read
dept-x + parent canon + shared canon had no expression.

#876 adds federated_read TEXT[] as an orthogonal read-scope axis. source_id
is the WRITE authority; federated_read is the READ authority. They default
to matching values (read scope == write scope, the pre-v0.34 default)
when a client is registered without an explicit federated read list.

Migrations v56-v60 (six new migrations on top of v55):

  - v56: ALTER TABLE ... ADD COLUMN federated_read TEXT[] NOT NULL DEFAULT '{}'.
  - v57 (F5): explicit CASE backfill so source_id IS NULL → '{}' (not an
    array containing NULL — codex caught this ambiguity during plan review).
  - v58: post-backfill validation. Fails loud if any row's source_id isn't
    in its federated_read array, pointing at a logic bug in v57 if fired.
  - v59: flip the source_id FK from ON DELETE SET NULL to ON DELETE
    RESTRICT now that federated_read provides the alternative scope-loss
    path. Pre-flip, deleting a source could silently widen any oauth_client
    to super-reader; post-flip, source delete is refused if any client
    references it (operator must revoke/re-scope first).
  - v60: GIN index on federated_read for array-containment queries.

Auth wiring:

  - GBrainOAuthProvider.verifyAccessToken JOINs c.federated_read and
    populates AuthInfo.allowedSources. Pre-v56 / pre-v55 brains degrade
    via the existing isUndefinedColumnError fallback chain.
  - registerClientManual gains a federatedRead?: string[] parameter
    (defaults to [sourceId]).
  - DCR registerClient sets source_id='default' + federated_read=['default']
    on the inserted row.
  - auth.ts CLI adds --federated-read SRC1,SRC2,... flag. The
    register-client output now prints "Federated reads:" so operators
    confirm the scope they set.

Engines consume the federated array through the SearchOpts.sourceIds /
PageFilters.sourceIds field that #861 added (no engine changes here — the
plumbing was D9). sourceScopeOpts in operations.ts already prefers the
auth.allowedSources array over scalar ctx.sourceId when set.

Test seam:
  - test/book-mirror.test.ts now spawns the CLI with GBRAIN_HOME pointed
    at a tempdir so the test isn't sensitive to the developer's local
    ~/.gbrain/config.json. Pre-fix the test could silently inherit a real
    Postgres connection and hang past the default 5s test timeout. Fresh
    GBRAIN_HOME → "No brain configured" → exit 1 in <1s.
  - test/e2e/source-isolation-pglite.test.ts gains one more regression
    case: AuthInfo.allowedSources = [] (explicit empty) MUST NOT widen
    scope to "all sources" — the silent-widen footgun precedence ladder.
  - test/openai-compat-multimodal.test.ts is part of the wave's commits
    via the migrate.ts changes that bump the schema chain. typecheck-only
    fix on a captured-auth type was already in #875's tree.

6045 unit tests pass / 0 fail. typecheck clean. PGLite initSchema runs
v55-v60 in ~786ms total (within the test-harness budget for tests using
the canonical beforeAll engine pattern).

Origin: PR #876 + plan-eng-review F5 (CASE backfill).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-14 10:12:39 -07:00
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