Paper/patches/server/0523-Add-bypass-host-check.patch

31 lines
2.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sun, 18 Apr 2021 21:27:01 +0100
Subject: [PATCH] Add bypass host check
Paper.bypassHostCheck
Seriously, fix your firewalls. -.-
diff --git a/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
index bcdb2cc4c735d939bdd0e9b7ec5246f51e57f299..6a33cb47c5dac403ad90ef95a56b99a6869e0459 100644
--- a/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
@@ -31,6 +31,7 @@ public class ServerHandshakePacketListenerImpl implements ServerHandshakePacketL
private static final Component IGNORE_STATUS_REASON = Component.translatable("disconnect.ignoring_status_request");
private final MinecraftServer server;
private final Connection connection;
+ private static final boolean BYPASS_HOSTCHECK = Boolean.getBoolean("Paper.bypassHostCheck"); // Paper
public ServerHandshakePacketListenerImpl(MinecraftServer server, Connection connection) {
this.server = server;
@@ -159,7 +160,7 @@ public class ServerHandshakePacketListenerImpl implements ServerHandshakePacketL
String[] split = packet.hostName().split("\00");
if (!handledByEvent && proxyLogicEnabled) { // Paper
// if (org.spigotmc.SpigotConfig.bungee) { // Paper - comment out, we check above!
- if ( ( split.length == 3 || split.length == 4 ) && ( ServerHandshakePacketListenerImpl.HOST_PATTERN.matcher( split[1] ).matches() ) ) {
+ if ( ( split.length == 3 || split.length == 4 ) && ( ServerHandshakePacketListenerImpl.BYPASS_HOSTCHECK || ServerHandshakePacketListenerImpl.HOST_PATTERN.matcher( split[1] ).matches() ) ) { // Paper - Add bypass host check
this.connection.hostname = split[0];
this.connection.address = new java.net.InetSocketAddress(split[1], ((java.net.InetSocketAddress) this.connection.getRemoteAddress()).getPort());
this.connection.spoofedUUID = com.mojang.util.UndashedUuid.fromStringLenient( split[2] );