From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Mariell Hoversholm <proximyst@proximyst.com>
Date: Sat, 14 Nov 2020 16:19:52 +0100
Subject: [PATCH] Add API for quit reason


diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
index 31bdeff1f6bb536c78240efc2dd9c4774e634e11..04f16e56829cc6f2345071a9ca8502a436cb7b44 100644
--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
@@ -102,6 +102,17 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
         this.receiving = side;
     }
 
+    // Paper start
+    @Nullable
+    public net.minecraft.server.level.ServerPlayer getPlayer() {
+        if (this.packetListener instanceof net.minecraft.server.network.ServerGamePacketListenerImpl serverGamePacketListener) {
+            return serverGamePacketListener.player;
+        } else {
+            return null;
+        }
+    }
+    // Paper end
+
     public void channelActive(ChannelHandlerContext channelhandlercontext) throws Exception {
         super.channelActive(channelhandlercontext);
         this.channel = channelhandlercontext.channel();
@@ -149,12 +160,15 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
 
             this.handlingFault = true;
             if (this.channel.isOpen()) {
+                net.minecraft.server.level.ServerPlayer player = this.getPlayer(); // Paper
                 if (throwable instanceof TimeoutException) {
                     Connection.LOGGER.debug("Timeout", throwable);
+                    if (player != null) player.quitReason = org.bukkit.event.player.PlayerQuitEvent.QuitReason.TIMED_OUT; // Paper
                     this.disconnect(Component.translatable("disconnect.timeout"));
                 } else {
                     MutableComponent ichatmutablecomponent = Component.translatable("disconnect.genericReason", "Internal Exception: " + throwable);
 
+                    if (player != null) player.quitReason = org.bukkit.event.player.PlayerQuitEvent.QuitReason.ERRONEOUS_STATE; // Paper
                     if (flag) {
                         Connection.LOGGER.debug("Failed to sent packet", throwable);
                         ConnectionProtocol enumprotocol = this.getCurrentProtocol();
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index ad33c444100243b45bd8ee8603b21b41109faa2e..f05900394e0a00b8cad67cfbc7bb817513202553 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -275,6 +275,7 @@ public class ServerPlayer extends Player {
     public boolean isRealPlayer; // Paper
     public final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> cachedSingleHashSet; // Paper
     public PlayerNaturallySpawnCreaturesEvent playerNaturallySpawnedEvent; // Paper
+    public org.bukkit.event.player.PlayerQuitEvent.QuitReason quitReason = null; // Paper - there are a lot of changes to do if we change all methods leading to the event
 
     public ServerPlayer(MinecraftServer server, ServerLevel world, GameProfile profile) {
         super(world, world.getSharedSpawnPos(), world.getSharedSpawnAngle(), profile);
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 5cd15898576aa3d3f1c092bf645dd9f1e350cd0e..5a5b3d412d6982efbbe6fca3f794988ba7d5f704 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -507,6 +507,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
         final Component ichatbasecomponent = PaperAdventure.asVanilla(event.reason()); // Paper - Adventure
         // CraftBukkit end
 
+        this.player.quitReason = org.bukkit.event.player.PlayerQuitEvent.QuitReason.KICKED; // Paper
         this.connection.send(new ClientboundDisconnectPacket(ichatbasecomponent), PacketSendListener.thenRun(() -> {
             this.connection.disconnect(ichatbasecomponent);
         }));
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 852ced8023b68d77494f1f04eb365b379f95a651..f365eb9705ca78dd586c4e6492015d8710514efc 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -573,7 +573,7 @@ public abstract class PlayerList {
             entityplayer.closeContainer(org.bukkit.event.inventory.InventoryCloseEvent.Reason.DISCONNECT); // Paper
         }
 
-        PlayerQuitEvent playerQuitEvent = new PlayerQuitEvent(entityplayer.getBukkitEntity(), net.kyori.adventure.text.Component.translatable("multiplayer.player.left", net.kyori.adventure.text.format.NamedTextColor.YELLOW, io.papermc.paper.configuration.GlobalConfiguration.get().messages.useDisplayNameInQuitMessage ? entityplayer.getBukkitEntity().displayName() : PaperAdventure.asAdventure(entityplayer.getDisplayName()))); // Paper - Adventure
+        PlayerQuitEvent playerQuitEvent = new PlayerQuitEvent(entityplayer.getBukkitEntity(), net.kyori.adventure.text.Component.translatable("multiplayer.player.left", net.kyori.adventure.text.format.NamedTextColor.YELLOW, io.papermc.paper.configuration.GlobalConfiguration.get().messages.useDisplayNameInQuitMessage ? entityplayer.getBukkitEntity().displayName() : PaperAdventure.asAdventure(entityplayer.getDisplayName())), entityplayer.quitReason); // Paper - Adventure & quit reason
         this.cserver.getPluginManager().callEvent(playerQuitEvent);
         entityplayer.getBukkitEntity().disconnect(playerQuitEvent.getQuitMessage());