feedBack/lib
byrongamatos d459caf527 fix(playlists): split cover decode (400) from persist (500), unique temp, existence re-check
Two pre-existing cover-upload issues CodeRabbit flagged on #841 (verbatim move,
so correctly not fixed there):

1. One `except Exception as e` wrapped BOTH the PIL decode and the img.save/
   tmp.replace, returned 400 for both, and echoed `e` — so a disk/permission
   failure was mislabeled a client error and could leak a filesystem path. Now:
   decode/validation -> 400 "Invalid image" (generic); save/replace failure ->
   logged 500 "could not save cover" (no detail).
2. A shared `{pid}.png.tmp` let two concurrent uploads clobber each other's temp
   file. Now a unique `tempfile.mkstemp` in the cover dir, atomic replace to
   publish. Plus an existence re-check just before publishing so an upload that
   raced a playlist delete can't leave an orphan cover.

mkstemp itself is INSIDE the try (Codex catch): an unwritable dir / full disk
raises there and is the same persistence failure as save/replace, so it hits the
logged generic-500 path instead of escaping as an unhandled 500. Cleanup guards
`tmp is not None` for the mkstemp-failed case.

Did NOT add a full per-playlist critical section (CodeRabbit's "heavy lift"):
FeedBack is single-user (Principle I), so a cover upload racing a delete on the
same id can't happen — documented in the code rather than building a lock
framework for a precluded race.

tests/test_playlist_cover_errors.py pins all of it; negative-checked three ways:
the old single-except-400 shape fails the 500 + no-leak-400 tests, and moving
mkstemp back outside the try fails the temp-creation-500 test. Fix passes 5/5.
Full suite 2405 passed; boot smoke: valid cover 200, bad image -> generic
"Invalid image" 400, no .tmp litter.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-10 20:05:38 +02:00
..
routers fix(playlists): split cover decode (400) from persist (500), unique temp, existence re-check 2026-07-10 20:05:38 +02:00
acoustid_match.py feat(enrichment): AcoustID audio-fingerprint identification (opt-in) (#759) 2026-07-05 00:17:43 +02:00
appstate.py refactor(server): extract the playlists routes into routers/playlists.py (R3) (#841) 2026-07-10 19:58:09 +02:00
audio_effects_db.py refactor(server): extract AudioEffectsMappingDB into lib/audio_effects_db.py (R3) (#831) 2026-07-10 14:30:05 +02:00
audio.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
diagnostics_bundle.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
diagnostics_hardware.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
diagnostics_redact.py fix(tests): isolate plugin routes modules + redact .feedpak filenames (#736) 2026-07-03 13:01:07 +02:00
drums.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
env_compat.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
gp2midi.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
gp2notation.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
gp2rs_gpx.py feat(gp_autosync): piecewise time-warp helpers + refine_sync onset pass (#787) 2026-07-05 20:08:19 +02:00
gp2rs.py fix(gp2rs): write beat times at 6-decimal precision so imported tempo matches Guitar Pro (#819) 2026-07-10 13:12:10 +02:00
gp8_audio_sync.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
gp_autosync.py fix(gp_autosync): slope-constrained DTW steps — stop path collapse on riff-based songs (#791) 2026-07-05 23:12:31 +02:00
jsonc.py feat(core): read .jsonc data files (strip C-style comments) (feedpak-spec §8) 2026-06-20 14:10:04 -07:00
logging_setup.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
loosefolder.py Improve wording in terminology cleanup 2026-06-16 19:43:45 +01:00
lyrics_transcribe.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
mb_match.py feat(enrichment): alias-aware scoring — auto-confirm non-Latin-primary artists (#772) 2026-07-05 01:11:38 +02:00
metadata_db.py refactor(server): extract MetadataDB into lib/metadata_db.py (R3) (#830) 2026-07-10 14:18:59 +02:00
midi_import.py feat(drums): capture velocities alongside times in unmapped-percussion reporting (#808) 2026-07-07 23:58:49 +02:00
notation_lift.py fix: correctly import and notate multi-staff (piano/keys) tracks from GP8 (#692) 2026-07-02 08:40:20 +02:00
notation.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
progression.py Improve wording in terminology cleanup 2026-06-16 19:43:45 +01:00
reqfields.py refactor(server): extract the playlists routes into routers/playlists.py (R3) (#841) 2026-07-10 19:58:09 +02:00
safepath.py fix(library): serve art/load for songs mounted through a library junction (#766) 2026-07-05 00:15:50 +02:00
scan_worker.py refactor(server): extract MetadataDB into lib/metadata_db.py (R3) (#830) 2026-07-10 14:18:59 +02:00
sloppak.py Drop dead whisperx entry from allowed lyrics_source set 2026-07-06 17:30:26 -04:00
song_score.py Clean release snapshot 2026-06-16 18:47:13 +02:00
song.py fix(gp-import): correct bass string count, lead/rhythm roles, preview note count (#601) 2026-06-26 18:58:35 +02:00
songmeta.py library: opt-in gap-fill — write confirmed missing metadata into the pack (R4a) (#724) 2026-07-02 20:52:11 +02:00
tailwind_rebuild.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
tones.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
tunings.py Serve exact MIDI notes from GET /api/tunings (tuningMidis) (#829) 2026-07-10 13:05:39 +02:00
vocal_pitch.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
wem_decode.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
xp.py Clean release snapshot 2026-06-16 18:47:13 +02:00