1 files changed, 30 insertions, 0 deletions
diff --git a/patches/server/0603-Add-bypass-host-check.patch b/patches/server/0603-Add-bypass-host-check.patch
new file mode 100644
index 0000000000..85854dc71d
--- /dev/null
+++ b/patches/server/0603-Add-bypass-host-check.patch
@@ -0,0 +1,30 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Shane Freeder <[email protected]>
+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 750fef0f5b908b776a7306e54653eba497b7c50b..53833fdd748098b662d4420a254401c0d3982e56 100644
+--- a/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
+@@ -29,6 +29,7 @@ public class ServerHandshakePacketListenerImpl implements ServerHandshakePacketL
+     private static final Component IGNORE_STATUS_REASON = Component.literal("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;
+@@ -117,7 +118,7 @@ public class ServerHandshakePacketListenerImpl implements ServerHandshakePacketL
+                     if (!handledByEvent && proxyLogicEnabled) {
+                         // Paper end
+                     // 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
+                             packet.hostName = split[0];
+                             connection.address = new java.net.InetSocketAddress(split[1], ((java.net.InetSocketAddress) this.connection.getRemoteAddress()).getPort());
+                             connection.spoofedUUID = com.mojang.util.UUIDTypeAdapter.fromString( split[2] );