GET /uploads/{documentId}/content took only (string documentId) — no
HttpContext, so no authorization was possible. It streams diploma and
identity scans, protected by GUID unguessability alone, while DELETE on the
same resource has always been owner-scoped. GET /uploads/status had the same
shape and confirmed whether any client-chosen localId exists, plus its
documentId.
Both now take HttpContext. Content is readable by the owning
ZorgverlenerCaller or a caller passing Authz.CanBeoordelen — matched on the
caller kind rather than branched on a boolean, because ctx.Zorgverlener()
throws for a MedewerkerCaller and the behandelportal's beoordeling screen is
a legitimate reader. Status is scoped to ctx.Zorgverlener().Bsn via a new
owner parameter on DocumentStore.ByLocalIds (one call site).
404, not 403, on both: a foreign document id must not be distinguishable
from one that never existed, and a foreign localId reads back as "unknown".
Residual, recorded in the implementation note: both callers reach the URL as
a plain browser navigation (<a href> / previewUrl), which carries no identity
header and no interceptor, so StubIdentityProvider resolves it to the seeded
citizen. That is BIO-002 and belongs to RB-09; the links keep working today
only because one citizen owns every document in the POC.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>