Brummel
5e86cb59b0
Follow-up to 6d1ca71: that commit made the recordings sub-page render for a
closed case by threading ?show_closed=1, but the page's own links and the
audio player still 404'd — playback was dead and the back link led nowhere.
Root cause: the `.closed` marker was implemented as an ACCESS gate (every
case-scoped read 404s a closed case unless the opt-in flag is threaded
through), while it is documented as a DISCOVERY gate ("hidden from the
default listing"). Threading the flag through every link/redirect is
whack-a-mole; the next new link forgets it.
Resolved in favour of discovery-gate semantics: the `.closed` marker only
filters the default case LIST (scan_user_cases). Direct/deep-link access to
a known, owned case and all its sub-resources is closed-agnostic. IDOR is
unchanged — it comes from the per-user root + existence check, orthogonal
to closed-ness.
Scope 1 — closed cases are fully viewable:
- handle_audio: drop the is_closed -> 404 gate (web.rs). Audio is a
capability URL behind the same per-user path + slug/UUID/filename
validation as an open case.
- handle_case_page / handle_case_recordings: always resolve via
locate_closed_case_or_404; show_closed is no longer an access gate, so
back links (recordings -> case, case -> list) reach live pages without
threading the flag.
- the "back to list" links carry ?show_closed=1 when the case is closed
(computed server-side from the marker) so the user returns to the
closed-inclusive list, not the default list that hides the case.
Scope 2 — closed means read-only:
- case_page.html withholds the analyze / reset / re-analyze / retry forms
on closed cases; only the reopen affordance remains.
- case_recordings.html withholds the per-recording delete form on closed
cases (CaseRecordingsTemplate gains is_closed).
- the mutating handlers (analyze/reset/delete/oneliner) keep rejecting
closed cases via locate_case_or_404 as defense-in-depth behind the
now-hidden buttons.
Tests (RED-first):
- web_test: audio serves a closed case's file (200, not 404).
- case_page_test: closed case page + recordings render without
?show_closed=1; closed case hides analyze/reset; open case still shows
delete; closed case hides delete.
- analyze_test: closed_case_returns_404_on_detail rewritten to
closed_case_detail_renders_read_only — the old test pinned the
now-superseded access-gate contract.
cargo test (440 passed), clippy, and fmt all clean.
closes #17