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Base64 encoding is unreliable

See original GitHub issue

Description

I tried to encode this song to a base64 string using Wavelink (was told to report it here): https://www.youtube.com/watch?v=_2zwBWLkZHM

After encoding that, I am writing the base64 string to a database. When the user requests the song from the database, the base64 string can’t get decoded.

The base64 string that wavelink/lavalink gives me is this:

QAAAhwIAIUNoaWxsIGJ5IEpvYWtpbSBLYXJ1ZCBbWm9uZWQgT3V0XQAMSm9ha2ltIEthcnVkAAAAAAAC+bgAC18yendCV0xrWkhNAAEAK2h0dHBzOi8vd3d3LnlvdXR1YmUuY29tL3dhdGNoP3Y9XzJ6d0JXTGtaSE0AB3lvdXR1YmUAAAAAAAAAAA==

Version info

Client used: Wavelink

Lavalink: Version: b16ba2f169212982a2124423a9f2cb236b22f624-SNAPSHOT Build: 1050

Output of java -version:

java 13.0.2 2020-01-14
Java(TM) SE Runtime Environment (build 13.0.2+8)
Java HotSpot(TM) 64-Bit Server VM (build 13.0.2+8, mixed mode, sharing)

The log just shows this:

[ XNIO-1 task-14] l.server.player.AudioLoaderRestHandler   : GET /decodetrack

Issue Analytics

State:
Created 3 years ago
Comments:11 (4 by maintainers)

Top GitHub Comments

2reactions

freyacodescommented, Jun 11, 2020

It works on my machine™️

curl --request GET \
  --url 'http://localhost:2333/decodetrack?track=QAAAhwIAIUNoaWxsIGJ5IEpvYWtpbSBLYXJ1ZCBbWm9uZWQgT3V0XQAMSm9ha2ltIEthcnVkAAAAAAAC%2BbgAC18yendCV0xrWkhNAAEAK2h0dHBzOi8vd3d3LnlvdXR1YmUuY29tL3dhdGNoP3Y9XzJ6d0JXTGtaSE0AB3lvdXR1YmUAAAAAAAAAAA%3D%3D' \
  --header 'authorization: youshallnotpass'

{
  "identifier": "_2zwBWLkZHM",
  "isSeekable": true,
  "author": "Joakim Karud",
  "length": 195000,
  "isStream": false,
  "position": 0,
  "title": "Chill by Joakim Karud [Zoned Out]",
  "uri": "https://www.youtube.com/watch?v=_2zwBWLkZHM"
}

Also Naegin’s B64:

{
  "identifier": "2yWWFLI5kFU",
  "isSeekable": true,
  "author": "Tom Scott",
  "length": 232000,
  "isStream": false,
  "position": 0,
  "title": "᚛ᚈᚑᚋ ᚄᚉᚑᚈᚈ᚜ and ᚛ᚑᚌᚐᚋ᚜",
  "uri": "https://www.youtube.com/watch?v=2yWWFLI5kFU"
}

I’m disappointed that you didn’t use Tom Scott’s video about YouTube and base64 https://www.youtube.com/watch?v=gocwRvLhDf8

0reactions

realmayuscommented, Jun 11, 2020

Okay, it turns out that it was a bug in Wavelink, not in Lavalink. Thanks a bunch for helping debugging the issue! https://github.com/PythonistaGuild/Wavelink/pull/57 fixed the issue.