mirror of
https://github.com/PaperMC/Paper.git
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65 lines
4.4 KiB
Diff
65 lines
4.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: PanSzelescik <panszelescik@gmail.com>
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Date: Thu, 7 Apr 2022 16:13:39 +0200
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Subject: [PATCH] Add support for Proxy Protocol
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diff --git a/build.gradle.kts b/build.gradle.kts
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index 38585b7f0b8e1e287b37820924a1b0d464fe9e99..25001d6cf4f70bd01ab304625b49ec45f5b1f525 100644
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--- a/build.gradle.kts
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+++ b/build.gradle.kts
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@@ -28,6 +28,7 @@ dependencies {
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log4jPlugins.annotationProcessorConfigurationName("org.apache.logging.log4j:log4j-core:2.19.0") // Paper - Needed to generate meta for our Log4j plugins
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runtimeOnly(log4jPlugins.output)
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alsoShade(log4jPlugins.output)
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+ implementation("io.netty:netty-codec-haproxy:4.1.97.Final") // Paper - Add support for proxy protocol
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// Paper end
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implementation("org.apache.logging.log4j:log4j-iostreams:2.22.1") // Paper - remove exclusion
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implementation("org.ow2.asm:asm-commons:9.7.1")
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diff --git a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
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index c63c194c44646e6bc1a59426552787011fc2ced5..c62df32af11636ad408b584fcc590590ce4fb0d0 100644
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--- a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
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+++ b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
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@@ -104,6 +104,12 @@ public class ServerConnectionListener {
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ServerConnectionListener.LOGGER.info("Using default channel type");
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}
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+ // Paper start - Warn people with console access that HAProxy is in use.
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+ if (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.proxyProtocol) {
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+ ServerConnectionListener.LOGGER.warn("Using HAProxy, please ensure the server port is adequately firewalled.");
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+ }
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+ // Paper end - Warn people with console access that HAProxy is in use.
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+
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this.channels.add(((ServerBootstrap) ((ServerBootstrap) (new ServerBootstrap()).channel(oclass)).childHandler(new ChannelInitializer<Channel>() {
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protected void initChannel(Channel channel) {
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try {
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@@ -123,6 +129,29 @@ public class ServerConnectionListener {
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Connection object = j > 0 ? new RateKickingConnection(j) : new Connection(PacketFlow.SERVERBOUND); // CraftBukkit - decompile error
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//ServerConnectionListener.this.connections.add(object); // Paper
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+ // Paper start - Add support for Proxy Protocol
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+ if (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.proxyProtocol) {
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+ channel.pipeline().addAfter("timeout", "haproxy-decoder", new io.netty.handler.codec.haproxy.HAProxyMessageDecoder());
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+ channel.pipeline().addAfter("haproxy-decoder", "haproxy-handler", new ChannelInboundHandlerAdapter() {
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+ @Override
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+ public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
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+ if (msg instanceof io.netty.handler.codec.haproxy.HAProxyMessage message) {
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+ if (message.command() == io.netty.handler.codec.haproxy.HAProxyCommand.PROXY) {
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+ String realaddress = message.sourceAddress();
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+ int realport = message.sourcePort();
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+
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+ SocketAddress socketaddr = new java.net.InetSocketAddress(realaddress, realport);
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+
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+ Connection connection = (Connection) channel.pipeline().get("packet_handler");
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+ connection.address = socketaddr;
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+ }
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+ } else {
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+ super.channelRead(ctx, msg);
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+ }
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+ }
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+ });
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+ }
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+ // Paper end - Add support for proxy protocol
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pending.add(object); // Paper - prevent blocking on adding a new connection while the server is ticking
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((Connection) object).configurePacketHandler(channelpipeline);
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((Connection) object).setListenerForServerboundHandshake(new ServerHandshakePacketListenerImpl(ServerConnectionListener.this.server, (Connection) object));
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