Paper/Spigot-Server-Patches/0215-Expose-client-protocol-version-and-virtual-host.patch

141 lines
5.4 KiB
Diff

From 3541b3881a5ed15147bc2f89d8802dd32b52249b Mon Sep 17 00:00:00 2001
From: Minecrell <minecrell@minecrell.net>
Date: Tue, 10 Oct 2017 18:45:20 +0200
Subject: [PATCH] Expose client protocol version and virtual host
diff --git a/src/main/java/com/destroystokyo/paper/network/PaperNetworkClient.java b/src/main/java/com/destroystokyo/paper/network/PaperNetworkClient.java
new file mode 100644
index 000000000..5caca6439
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/network/PaperNetworkClient.java
@@ -0,0 +1,50 @@
+package com.destroystokyo.paper.network;
+
+import net.minecraft.server.NetworkManager;
+
+import java.net.InetSocketAddress;
+
+import javax.annotation.Nullable;
+
+public class PaperNetworkClient implements NetworkClient {
+
+ private final NetworkManager networkManager;
+
+ PaperNetworkClient(NetworkManager networkManager) {
+ this.networkManager = networkManager;
+ }
+
+ @Override
+ public InetSocketAddress getAddress() {
+ return (InetSocketAddress) this.networkManager.getSocketAddress();
+ }
+
+ @Override
+ public int getProtocolVersion() {
+ return this.networkManager.protocolVersion;
+ }
+
+ @Nullable
+ @Override
+ public InetSocketAddress getVirtualHost() {
+ return this.networkManager.virtualHost;
+ }
+
+ public static InetSocketAddress prepareVirtualHost(String host, int port) {
+ int len = host.length();
+
+ // FML appends a marker to the host to recognize FML clients (\0FML\0)
+ int pos = host.indexOf('\0');
+ if (pos >= 0) {
+ len = pos;
+ }
+
+ // When clients connect with a SRV record, their host contains a trailing '.'
+ if (len > 0 && host.charAt(len - 1) == '.') {
+ len--;
+ }
+
+ return InetSocketAddress.createUnresolved(host.substring(0, len), port);
+ }
+
+}
diff --git a/src/main/java/net/minecraft/server/HandshakeListener.java b/src/main/java/net/minecraft/server/HandshakeListener.java
index 088ec198e..bc34cd687 100644
--- a/src/main/java/net/minecraft/server/HandshakeListener.java
+++ b/src/main/java/net/minecraft/server/HandshakeListener.java
@@ -15,6 +15,7 @@ public class HandshakeListener implements PacketHandshakingInListener {
private final MinecraftServer a;
private final NetworkManager b;
+ private NetworkManager getNetworkManager() { return b; } // Paper - OBFHELPER
public HandshakeListener(MinecraftServer minecraftserver, NetworkManager networkmanager) {
this.a = minecraftserver;
@@ -130,6 +131,10 @@ public class HandshakeListener implements PacketHandshakingInListener {
throw new UnsupportedOperationException("Invalid intention " + packethandshakinginsetprotocol.b());
}
+ // Paper start - NetworkClient implementation
+ this.getNetworkManager().protocolVersion = packethandshakinginsetprotocol.getProtocolVersion();
+ this.getNetworkManager().virtualHost = com.destroystokyo.paper.network.PaperNetworkClient.prepareVirtualHost(packethandshakinginsetprotocol.hostname, packethandshakinginsetprotocol.port);
+ // Paper end
}
public void a(IChatBaseComponent ichatbasecomponent) {}
diff --git a/src/main/java/net/minecraft/server/NetworkManager.java b/src/main/java/net/minecraft/server/NetworkManager.java
index 5b0d83a1d..424464d09 100644
--- a/src/main/java/net/minecraft/server/NetworkManager.java
+++ b/src/main/java/net/minecraft/server/NetworkManager.java
@@ -63,6 +63,10 @@ public class NetworkManager extends SimpleChannelInboundHandler<Packet<?>> {
private float t;
private int u;
private boolean v;
+ // Paper start - NetworkClient implementation
+ public int protocolVersion;
+ public java.net.InetSocketAddress virtualHost;
+ // Paper end
public NetworkManager(EnumProtocolDirection enumprotocoldirection) {
this.h = enumprotocoldirection;
diff --git a/src/main/java/net/minecraft/server/PacketHandshakingInSetProtocol.java b/src/main/java/net/minecraft/server/PacketHandshakingInSetProtocol.java
index 7acdac55e..f1a3be69d 100644
--- a/src/main/java/net/minecraft/server/PacketHandshakingInSetProtocol.java
+++ b/src/main/java/net/minecraft/server/PacketHandshakingInSetProtocol.java
@@ -33,6 +33,7 @@ public class PacketHandshakingInSetProtocol implements Packet<PacketHandshakingI
return this.d;
}
+ public int getProtocolVersion() { return c(); } // Paper - OBFHELPER
public int c() {
return this.a;
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 019fd4b48..43e357e39 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -175,6 +175,20 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
}
}
+ // Paper start - Implement NetworkClient
+ @Override
+ public int getProtocolVersion() {
+ if (getHandle().playerConnection == null) return -1;
+ return getHandle().playerConnection.networkManager.protocolVersion;
+ }
+
+ @Override
+ public InetSocketAddress getVirtualHost() {
+ if (getHandle().playerConnection == null) return null;
+ return getHandle().playerConnection.networkManager.virtualHost;
+ }
+ // Paper end
+
@Override
public double getEyeHeight(boolean ignorePose) {
if (ignorePose) {
--
2.18.0