mirror of https://github.com/PaperMC/Paper.git
57 lines
4.1 KiB
Diff
57 lines
4.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: kashike <kashike@vq.lc>
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Date: Wed, 13 Apr 2016 20:21:38 -0700
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Subject: [PATCH] Add handshake event to allow plugins to handle client
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handshaking logic themselves
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diff --git a/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
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index 3634740acd1ca7c13956c56508db5892fd00edc9..9214fb6b8e21ff6aee8be0691f1fe6e41c901ba3 100644
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--- a/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
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@@ -120,9 +120,43 @@ public class ServerHandshakePacketListenerImpl implements ServerHandshakePacketL
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this.connection.disconnect(ichatmutablecomponent);
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} else {
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this.connection.setupInboundProtocol(LoginProtocols.SERVERBOUND, new ServerLoginPacketListenerImpl(this.server, this.connection, transfer));
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+ // Paper start - PlayerHandshakeEvent
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+ boolean proxyLogicEnabled = org.spigotmc.SpigotConfig.bungee;
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+ boolean handledByEvent = false;
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+ // Try and handle the handshake through the event
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+ if (com.destroystokyo.paper.event.player.PlayerHandshakeEvent.getHandlerList().getRegisteredListeners().length != 0) { // Hello? Can you hear me?
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+ java.net.SocketAddress socketAddress = this.connection.address;
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+ String hostnameOfRemote = socketAddress instanceof java.net.InetSocketAddress ? ((java.net.InetSocketAddress) socketAddress).getHostString() : InetAddress.getLoopbackAddress().getHostAddress();
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+ com.destroystokyo.paper.event.player.PlayerHandshakeEvent event = new com.destroystokyo.paper.event.player.PlayerHandshakeEvent(packet.hostName(), hostnameOfRemote, !proxyLogicEnabled);
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+ if (event.callEvent()) {
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+ // If we've failed somehow, let the client know so and go no further.
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+ if (event.isFailed()) {
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+ Component component = io.papermc.paper.adventure.PaperAdventure.asVanilla(event.failMessage());
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+ this.connection.send(new ClientboundLoginDisconnectPacket(component));
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+ this.connection.disconnect(component);
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+ return;
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+ }
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+
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+ if (event.getServerHostname() != null) {
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+ // change hostname
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+ packet = new ClientIntentionPacket(
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+ packet.protocolVersion(),
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+ event.getServerHostname(),
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+ packet.port(),
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+ packet.intention()
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+ );
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+ }
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+ if (event.getSocketAddressHostname() != null) this.connection.address = new java.net.InetSocketAddress(event.getSocketAddressHostname(), socketAddress instanceof java.net.InetSocketAddress ? ((java.net.InetSocketAddress) socketAddress).getPort() : 0);
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+ this.connection.spoofedUUID = event.getUniqueId();
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+ this.connection.spoofedProfile = gson.fromJson(event.getPropertiesJson(), com.mojang.authlib.properties.Property[].class);
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+ handledByEvent = true; // Hooray, we did it!
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+ }
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+ }
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+ // Paper end
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// Spigot Start
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String[] split = packet.hostName().split("\00");
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- if (org.spigotmc.SpigotConfig.bungee) {
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+ if (!handledByEvent && proxyLogicEnabled) { // Paper
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+ // if (org.spigotmc.SpigotConfig.bungee) { // Paper - comment out, we check above!
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if ( ( split.length == 3 || split.length == 4 ) && ( ServerHandshakePacketListenerImpl.HOST_PATTERN.matcher( split[1] ).matches() ) ) {
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this.connection.hostname = split[0];
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this.connection.address = new java.net.InetSocketAddress(split[1], ((java.net.InetSocketAddress) this.connection.getRemoteAddress()).getPort());
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