Stability:
- transient timeouts no longer classified as ISP blocking; they fall
through to retry backoff (hard blocks - DNS/RST/cert - still abort)
- connectivity change now closes idle Go connections in every network
mode (debounced), so pooled sockets from the old interface are not
reused after a wifi/cellular handoff
- download body reads get a 60s stall watchdog that cancels and
surfaces a retryable network error instead of hanging; distinct
from user cancellation
- ResponseHeaderTimeout 45s on all transports; IdleConnTimeout 90->60s;
dial timeout 30->10s; retry backoff gains full jitter; Retry-After
honored on 5xx and Deezer 429
Data usage / speed:
- cover downloads deduplicated with singleflight plus a 24MB/15min
in-memory cache keyed by final URL (album batches fetched the same
1800px cover once per track before)
- song.link availability cached (30min positive / 5min negative)
in front of the 9-req/min rate limiter
- uTLS Cloudflare path now pools one HTTP/2 connection per host with
a shared TLS session cache instead of a full handshake per request
Deezer artist track-count N+1 kept: counts feed the discography
download UI and are already amortized by the artist TTL cache.
- Add 'url' field (final URL after redirects) to all extension HTTP responses and fix fetch polyfill to return final URL instead of original request URL
- Fix RunWithTimeout race condition: increase force-timeout from 1s to 60s to prevent concurrent VM access crashes, add nil guards
- Use lockReadyVM() for thread-safe VM access in GetPlaylistWithExtensionJSON and InvokeAction
- Handle mixed JSON types (string, null, array) in SongLink resolve API SongUrls field
- Fix recommended download service not showing for extension-based searches in download picker
Resolve API (api.zarz.moe):
- Refactor songlink.go: Spotify URLs use resolve API, non-Spotify uses SongLink API
- Add SongLink fallback when resolve API fails for Spotify (two-layer resilience)
- Remove dead code: page parser, XOR-obfuscated keys, legacy helpers
Multi-artist tag fix (#288):
- Add RewriteSplitArtistTags() in Go to rewrite ARTIST/ALBUMARTIST as split Vorbis comments
- Wire method channel handler in Android (MainActivity.kt) and iOS (AppDelegate.swift)
- Add PlatformBridge.rewriteSplitArtistTags() in Dart
- Call native FLAC rewriter after FFmpeg embed when split_vorbis mode is active
- Extract deezerTrackArtistDisplay() helper to use Contributors in album/playlist tracks
Code cleanup:
- Remove unused imports, dead code, and redundant comments across Go and Dart
- Fix build: remove stale getQobuzDebugKey() reference in deezer_download.go
zarzet