Debrid direct links are time-limited; a long playback can outlive the link
the session was created with. When a debrid source dies mid-stream the daemon
now re-resolves a fresh link for the same content and resumes — no torrent
fallback, no playback restart.
- debridFileProvider holds the URL behind a mutex; on an expired-link status
(401/403/404/410) the ranged reader re-resolves via a refresh callback and
retries (bounded: 1 initial + 1 post-refresh attempt). A browser opens
several range connections, so the refresh is coalesced singleflight-style —
N readers hitting the dead link share ONE re-resolution, not N.
- HLS-from-URL: the auto-restart supervisor re-resolves the link before
relaunching ffmpeg (else it just retries the dead URL and burns the retry
budget). The mutable URL lives in s.liveURL under s.mu — restartFromSegment
reads it from the HTTP handler goroutine too (seek-restart), so cfg stays
immutable and the write races nothing.
- agentClient.RefreshStreamURL → POST /api/internal/agent/stream-url.
Cross-source torrent<->debrid swap (the rare "debrid genuinely gone" case) is
intentionally deferred. Reader refresh + coalescing covered by unit tests
(incl. -race); the web endpoint re-resolves against a real AllDebrid account.
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