TCPShield compatibility

[AlexPresso]

What happened?

FastLogin isn't autoRegistering premium users with AuthMeReloaded. I activated both autoRegister and autoLogin, tried to remove both plugin databases + folders, it just refuses to generate a password.
From what I see in the logs, it seems that FastLogin uses the TCPShield proxy IP and AuthMe uses the "real IP", could the issue be related to that ?

What did you expect?

FastLogin hooks into AuthMeReloaded to generate a password for the premium user.

Steps to reproduce

• Set the server to online-mode: false
• Install FastLogin (v1.11-SNAPSHOT-4d4ecf3)
• Install AuthMeReloaded (5.6.0-SNAPSHOT-b2482)
• Set autoRegister: true in the FastLogin's config file
• Try to connect to the server

Plugin list

AuthMe (5.6.0-SNAPSHOT-b2482), FastLogin (1.11-SNAPSHOT-4d4ecf3), EpicWorldGenerator, ProtocolLib, TCPShield, Essentials, EssentialsChat, EssentialsSpawn

Configuration file

https://hastebin.com/amiqorejug.yaml

Server log

https://hastebin.com/asasecipob.md

Plugin version

v1.11-SNAPSHOT-4d4ecf3

Platform

Spigot

Relevance

• I tried the latest build
• I checked for existing tickets -
  If there are, please vote them with a thumps reaction and not create new ones

[TuxCoding]

Sorry the link you posted expired, could you post the startup log and the part where you are trying to login with the databases removed.

From what I see in the logs, it seems that FastLogin uses the TCPShield proxy IP and AuthMe uses the "real IP", could the issue be related to that ?

For FastLogin the ip is mostly irrelevant. However it's not possible for FastLogin to change the onlinemode if the proxy is managing the online mode.

[AlexPresso]

Sorry for the delay, here is the new link: https://hastebin.com/gemunenisi.md

[TuxCoding]

Okay found it. It's because another plugin changed the IP, which is unexpected for FastLogin.

[TuxCoding]

That's the meaning for the message: No on-going login session for player: CraftPlayer{name=AlexPresso}

[AlexPresso]

Thanks for your reply, okay I get it, so this is because of TCPShield.

Since the player is supposed to have the same UUID, could FastLogin check for an IP Change (even if it's illogic) so it can work behind proxies changing player's IP ?
Or would it be better to post an issue on TCPShield to ask them what we can do with that IP change ?

[TuxCoding]

Since the player is supposed to have the same UUID,

That's not possible, because it can change during the login process. It will be set on the spoofedUUID field (exposed from the Bungee support). Changing the IP during a connection is something during a handshake unexpected, because it means it would mean there is a new endpoint. I could work on a fix, but I guess there are others plugins which could have an issue with that too.

[AlexPresso]

Alright, in the mean time, is there any alternative/workaround I could use to make it work ?

[TuxCoding]

Which version of TCPShield do you use? Could you try out both of the latest versions. If they are going to mimic BungeeCord's behavior there shouldn't be an issue.

[TuxCoding]

I also uploaded a version with more debug logging for the session: https://github.com/games647/FastLogin/releases/tag/tcpshield

I'll need to know if the session ids match together.

[AlexPresso]

The TCPShield version I was using (2.5.3) wasn't working but it seems like it works with TCPShield 2.4 (https://github.com/TCPShield/RealIP/releases/tag/2.3.1)

here are the logs with the debugging version:

[17:13:13 INFO]: [FastLogin] Handling player AlexPresso
[17:13:13 INFO]: [FastLogin] GameProfile AlexPresso uses a premium username
[17:13:13 INFO]: [FastLogin] Starting session 51.178.221.23:28525
[17:13:14 INFO]: [FastLogin] Enabling onlinemode encryption for /51.178.221.23:28525
[17:13:15 INFO]: [FastLogin] Profile AlexPresso has a verified premium account
[17:13:15 INFO]: UUID of player AlexPresso is b5ddf389-ac0a-33d2-a804-d21e198db7ec
[17:13:15 INFO]: AlexPresso[/XX.XX.195.XX:28525] logged in with entity id 247 at ([world]-21.72740728936991, 85.49313562283125, 47.39723970506711)
[17:13:16 INFO]: [+++] AlexPresso a rejoint le serveur.
[17:13:16 INFO]: [FastLogin] No session found for id XX.XX.195.XX:28525
[17:13:16 INFO]: [FastLogin] No on-going login session for player: CraftPlayer{name=AlexPresso} with ID XX.XX.195.XX:28525

[TuxCoding]

Do you run Paper or a fork of it?

[AlexPresso]

Yes, I use latest version of Paper