Blossom servers reject a .torrent (415), so a Blossom video's magnet is webseed-only and can't bootstrap WebTorrent. This restores P2P without hosting a .torrent:
- Upload hardening: correct Content-Type (overrides empty/generic application/octet-stream), HTTP status surfaced in errors, and best-effort .torrent sidecar so a rejected sidecar no longer sinks the upload (URL-first fallback).
- Publish: when the .torrent can't be hosted, publish the piece-map as an infohash-keyed companion event (kind 30078, d=bitvid:torrent:<infohash>) and ship a ws= magnet. Gated by FEATURE_BLOSSOM_TORRENT_METADATA (default off = no trace); size-capped.
- Playback: torrentMetadataService lazily fetches the companion, VERIFIES the reconstructed infohash === the magnet's btih (untrusted content), sources the webseed from the video event, and hands the .torrent buffer to WebTorrent so it streams with zero peers. Relay reads go through the subscription manager.
Inherited by any upload-based media (shorts, audio-publish); excludes ingest/live. See docs/blossom-torrent-metadata-plan.md. Includes a Prettier reflow in css/tailwind.source.css.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
A video from a genuinely whitelisted author refused to play with "not from a
whitelisted author" (the source URL was confirmed healthy — HTTP 200, video/mp4,
range, CORS *). Root cause: accessControl keeps the whitelist in two sets —
whitelistPubkeys (hex) and whitelist (npub) — and canAccess consulted only one
based on the caller's input format without cross-deriving. playbackCoordinator
passes the author's npub, so it checked only the npub set; an entry present in
only the hex representation read as "not allowed."
- canAccess now derives BOTH hex and npub from the candidate and checks both sets
(only fixes false-negatives; a non-whitelisted author is still denied).
- Dev-gated diagnostic at the playback rejection logs hex/npub, whitelistMode,
set sizes, and inNpubSet/inHexSet to pinpoint any remaining denial.
- Tests: tests/access-control-canaccess.test.mjs.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
The liveness probe already tries all of a video's sources, but actual playback
only ever tried the single primary URL and then fell straight to WebTorrent. Now
playback fails over across hosted mirrors first.
- PlaybackSession builds an ordered, de-duped hostedSourceCandidates (primary URL
first, then the video's imeta `sources`; accepts string or {url} entries).
- attemptHostedPlayback takes a candidateUrl; the url-first execution loop tries
each candidate and advances to the next mirror on probe-fail/stall/timeout,
cleaning up watchdogs + resetting the <video> between candidates, only calling
WebTorrent after every hosted mirror fails.
- `sources` plumbed coordinator -> strategy -> session. Single-source videos
(no `sources`) behave exactly as before.
Tests: tests/services/playbackService_multisource.test.mjs (candidate
construction; the full async fail-over flow is covered by the existing
playbackService_order suite in CI — that mock-timers harness doesn't run in this
sandbox). ROLLBACK: revert the loop to the single attemptHostedPlayback() call
and drop the sources plumbing.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Phase 1 of the on-boarding plan, and the shared layer for unified grid
loading. A video that exists as both a bitvid kind-30078 note and a NIP-71
mirror/original previously could appear twice (e.g. independent dual-posts).
js/utils/videoDeduper.js: collapseCrossEcosystem() groups events by a
per-author identity (fileSha256 / originalFileSha256 / infoHash, plus an
`eid` namespace that links an on-boarded note's `importedFrom` to the
original foreign event) via union-find, and keeps the bitvid-native version
(else newest). dedupeVideos() = root-dedup THEN cross-ecosystem collapse.
Routed through the shared chokepoint app.dedupeVideosByRoot (playback
coordinator), so the feed stage, channel profile, and search all collapse
duplicates identically — "show one, prefer bitvid" everywhere. Channel
fallback path updated too.
Limitation (documented): hash-less independent dual-posts can't be matched
until the bitvid side carries on-board provenance (Phase 2).
Tests + mutation-verified (prefer-bitvid, per-author identity, infohash,
provenance link, root+cross composition). 1262/1263 unit (known flake).
Co-Authored-By: Claude Opus 4.8 <[email protected]>
The video's hosted CDN URL was added to WebTorrent's `urlList`, but a
standalone hosted-file URL is only a valid BEP19 webseed for a SINGLE-file
torrent. For a multi-file torrent WebTorrent treats it as a base directory and
appends "<torrent name>/<file path>", producing a doubled URL that 404s on
every request — the flood seen on e.g. archive.org videos.
The CDN URL is no longer placed in urlList. It's forwarded separately as
`hostedUrlWebSeed` and attached post-metadata (handleTorrentStream) via
torrent.addWebSeed ONLY when the torrent is a single file, where the URL maps
directly to the file. Multi-file torrents get no file-pointing webseed, so no
flood. Magnet-declared `ws=` webseeds are unaffected (passed via urlList as
before). With CDN-first, dual-source videos play the CDN directly anyway, so
this only affects forced-torrent / URL-less paths.
Tests: a single-file torrent receives the hosted URL via addWebSeed; a
multi-file torrent does not. The single-file guard is mutation-verified.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
WebTorrent (handleTorrentStream) hardening:
- Resolve only when playback is actually viable (loadeddata/canplay/playing),
not the instant streamTo() is called. A dead/too-slow swarm is no longer
reported as success, so the caller's fallback can run.
- Pre-playback torrent errors reject (caller falls back); post-playback errors
go to an onPlaybackError hook instead of a dead reject().
- Mid-stream stall watchdog surfaces an onStall hook ("waiting for peers").
- Fix a <video> listener leak: stream listeners are tracked and torn down
before the next stream and on cleanup() (the modal reuses one element).
- Stream the largest decodable file from a multi-file torrent and deselect the
rest (wider ext set: mp4/m4v/webm/mkv/mov/ogv/ogg) so the swarm isn't spent
downloading files we never play.
playbackCoordinator wires onStall/onPlaybackError to user-facing status.
Forced-source deep links (test affordance):
- The main app honors ?v=<nevent>&playback=torrent|url (mirrors the embed
player) to force a playback path; a missing source shows a clear message.
- The video share menu gains "Copy WebTorrent URL" / "Copy CDN URL" items that
copy the forced-source deep link (disabled with a reason when unavailable).
Tests: webtorrent-handlers (resolve-on-readiness, pre/post-ready errors, stall
fires/clears, largest-file select/deselect, no listener accumulation),
playback-forced-source (param normalization), videoMenuRenderers (copy items +
availability). All mutation-verified.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
- Implemented `hydrateVideoHistoryBatch` in `NostrClient` to fetch missing root events and sparse histories in a single `pool.list` request.
- Refactored `hydrateVideoHistory` to use shared helper methods `getLocalVideoHistory` and `_processAndCacheEvent`.
- Added `resolveVideoPostedAtBatch` to `PlaybackCoordinator` which delegates to the batched client method.
- Updated `VideoListView` to collect videos needing timestamp resolution and call the batch method, falling back to individual calls if necessary.
- Added regression test `tests/performance/resolvePostedAt.test.mjs` to verify reduced network calls.
Co-authored-by: PR0M3TH3AN <[email protected]>
Extracted the complex playback logic from `js/app/playbackCoordinator.js` into a new `js/services/playbackStrategyService.js`.
This improves maintainability by separating the orchestration logic from the application glue code.
The coordinator now delegates to the service, passing a context object for UI interactions and state synchronization.
Co-authored-by: PR0M3TH3AN <[email protected]>
Move cohesive method groups out of the monolithic Application class
(js/app.js, ~10K lines) into five coordinator modules under js/app/:
- feedCoordinator: feed registration, runtime building, refresh,
video loading, URL-health helpers, and feed telemetry
- playbackCoordinator: URL-first + magnet fallback pipeline, probing,
torrent status intervals, and video timestamp resolution
- authSessionCoordinator: signer lifecycle, profile switching,
relay/block/wallet management, and cleanup
- modalCoordinator: modal open/close, view-count subscriptions,
watch-history metadata, and playback logging
- moderationCoordinator: moderation settings, video decoration,
override/block/hide action routing
Each coordinator factory receives injected dependencies instead of
importing globals. Application retains thin delegator methods so all
public call-sites remain unchanged. Coordinator initialisation is
idempotent (via _initCoordinators) and supports both constructor-based
and Object.create()-based instantiation used by test harnesses.
All existing unit tests, lint checks, and syntax validation pass.
https://claude.ai/code/session_01C3PKJTCdavsGbk5jjC85EB
