Implement Bungeecord/Velocity info forward

[RaphiMC]

Allows setting the backend server to offline mode without losing all player data

[Hedwig7s]

Only thing is how would a client below 1.7 connect to the server via bungeecord/velocity (assuming the server is of a compatible version)? It would be unable to connect through either proxy and the server would block direct connections

[RaphiMC]

Clients below 1.7 are not supported by ViaProxy

[Hedwig7s]

I said that
It's just that if the server is below 1.7 then if you're using info forward the server will only accept bungee/velocity connections which the equivalent client for the server wouldn't be able to connect through making the server inaccessible to the target client somewhat defeating the point

[RaphiMC]

This option is intended for 1.8+ servers

[Hedwig7s]

But ViaVersion is available for 1.8+
I feel like this feature would be more useful for pre 1.8 servers that support bungeecord if it wasn't for the caveat of the actual clients being unable to connect

[RaphiMC]

I don't think there is a good way to allow the clients to join and have the bungeecord forwarding. Thats just how its gonna be. Either have bungeecord forwarding enabled, but only allow 1.7+ clients or don't enable it and allow same version clients to join as well

[jobpaardekooper]

Hello, how is this issue different from #654 ? Does this issue mean that you can have a backend server that does not support "modern" forwarding? Allowing you to put the backend server in offline mode and ViaProxy will keep the player skin etc and implement the modern forwarding logic + auth to the Velocity proxy?

[RaphiMC]

This issue is regarding ViaProxy generating its own bungeecord/velocity-forwarding payload (For scenarios where ViaProxy is the only proxy and there is no Bungeecord/Velocity in the setup)