[6.x] RedisBroadcaster - Ignore Redis Prefix When Verifying Channel Access

[tlaverdure]

Since 5.8 Laravel ships with Redis configured with a prefix to prevent conflicts when apps share a Redis store. This prefix is also used in the RedisBroadcaster to broadcast events and verify channels.

While using Laravel Echo Server some developers want to match the prefixing in their configurations with that in their Laravel app. This can work by add the keyPrefix to the server config, however, when authorizing private channels the prefix conflicts with the private channel definition in Laravel. For example:

Broadcast::channel('App.User.{id}', function ($user, $id) {
    return (int) $user->id === (int) $id;
});

With prefixing the channel is read as laravel_database_private-App.User.1 in RedisBroadcaster::auth instead of private-App.User.1.

[driesvints]

This is for #28701 I believe. Thank you for checking in on this 👍

Are there any breaking changes we should be aware of?

[tlaverdure]

You're welcome! No breaking changes that I can think of.

[taylorotwell]

Thanks. I had to tweak this a bit since we don't use the global config helper outside of service providers and factories, so I just injected the prefix into the broadcaster.

[driesvints]

Unfortunately this didn't fix #28701 apparently.