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purnell569 0941987234 Initial commit
Based on JMusicBot by jagrosh (https://github.com/jagrosh/MusicBot),
via the maintained fork by arif-banai (https://github.com/arif-banai/MusicBot).
See NOTICE for attribution. Licensed under Apache 2.0.

YouTube-side changes had broken playback entirely. Fixes:

- Apply the remote signature cipher independently of OAuth. Deciphering and
  authentication are unrelated, but the cipher was only configured when OAuth
  was enabled, so the default install fell back to the bundled extractor and
  failed with "Must find sig function from script: /s/player/<id>/...".
  Now always applied, and configurable via playback.youtube.remoteCipher.url.

- Add the ANDROID client and order the client list by reliability. ANDROID is
  currently the only client YouTube reliably streams to anonymously. WEB moves
  last, as YouTube answers it with SABR-only responses carrying no playable
  format ("No supported audio streams available, available types:").

- Detect sign-in failures across the whole exception graph. The existing hint
  could never fire: it matched the aggregate AllClientsFailedException message
  rather than the per-client reasons, and compared against an ASCII apostrophe
  while YouTube sends U+2019.

- Track youtube-source past 1.18.2, which predates the TV client User-Agent fix
  and the contentLength recovery fix.

Measured on previously failing tracks: 5/5 playing, stable across repeat runs
(was 1/5). No OAuth required. Adds 17 tests; 676 unit + 48 integration pass.
2026-09-11 13:47:20 +09:30

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JMusicBot
Licensed under the Apache License, Version 2.0. See the LICENSE file for terms.
This project builds on the work of two upstream repositories:
1. JMusicBot — original work
Copyright 2016-2021 John Grosh (jagrosh) <[email protected]>
https://github.com/jagrosh/MusicBot
2. JMusicBot — maintained fork, the direct ancestor of this repository
Copyright 2024-2026 Arif Banai (arif-banai)
https://github.com/arif-banai/MusicBot
Picked up and modernised the project after the original became unmaintained:
updated dependencies, Java 25 support, config migration, and much more.
This repository is a fork of (2), and therefore also of (1). Nearly all of the
code is their work; the changes made here are limited to restoring YouTube
playback after YouTube-side changes broke it.
Modified files carry a notice describing what changed, as required by section
4(b) of the Apache License. The modifications are:
- Apply the YouTube remote signature cipher independently of OAuth, and make
the cipher server configurable.
- Add the ANDROID client and order the YouTube client list by reliability.
- Detect YouTube sign-in failures across the whole exception graph so the
operator gets an actionable message instead of a bare stack trace.
- Track youtube-source at a commit that post-dates the 1.18.2 release, which
cannot play most tracks.
Third-party components retain their own licenses and copyright notices; see the
dependency declarations in pom.xml.