Files
TREK/server/tests
Maurice 4b3fb7dec9 fix(oidc): never take a role away over a claim the provider did not send
Role mapping read the configured OIDC_ADMIN_CLAIM out of the userinfo payload
and collapsed two very different answers into one: the claim arrived and did
not name an admin, and the claim was not there at all. The second is not a
verdict about the user — it is what an operator sees when the scope carrying
that claim was never requested, or the claim name has a typo. TREK wrote
role='user' for it anyway, with nothing in the log, nothing in the audit trail
and nothing in the UI, so a misconfiguration read as an unexplained loss of
admin. The only guard was the last-admin rule, which protects an instance with
exactly one admin row and therefore almost nobody.

An absent claim now leaves the stored role untouched. A claim that does arrive
still promotes and demotes exactly as before. To keep the silence from moving
somewhere worse, an absent claim on an account that is already an admin warns
on every login, naming the account: providers that omit a claim rather than
send it empty — Okta's filtered groups, Entra ID — cannot take admin away
through the mapping at all, and that has to be done in TREK's own admin panel.
The ordinary case still warns once per claim name, listing the claim names that
did arrive (never their values) and pointing at OIDC_SCOPE. A real transition
writes an audit row from the controller, with the client IP.

Closes #2364
2026-09-20 12:48:44 +02:00
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