Paper/patches/server/0631-Fixes-kick-event-leave-message-not-being-sent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Wed, 7 Jul 2021 16:19:41 -0700
Subject: [PATCH] Fixes kick event leave message not being sent


diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index aa2185e46bd47748a0a2b092ab2caf134fa4fa69..a3672049abc81fa4d34443cf0303d23e0f86b284 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -266,7 +266,6 @@ public class ServerPlayer extends Player {
     public boolean joining = true;
     public boolean sentListPacket = false;
     public boolean supressTrackerForLogin = false; // Paper
-    public String kickLeaveMessage = null; // SPIGOT-3034: Forward leave message to PlayerQuitEvent
     // CraftBukkit end
     public boolean isRealPlayer; // Paper
     public final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> cachedSingleHashSet; // Paper
diff --git a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
index a0328cfbe4184a2c1dc895e96fa3fefbdc52bf09..598f807f0d0caac98b81e0e2991f1bd497c4534e 100644
--- a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
@@ -76,6 +76,11 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
 
     @Override
     public void onDisconnect(Component reason) {
+        // Paper start
+        this.onDisconnect(reason, null);
+    }
+    public void onDisconnect(Component reason, @Nullable net.kyori.adventure.text.Component quitMessage) {
+        // Paper end
         if (this.isSingleplayerOwner()) {
             ServerCommonPacketListenerImpl.LOGGER.info("Stopping singleplayer server as player logged out");
             this.server.halt(false);
@@ -307,7 +312,6 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
             // Do not kick the player
             return;
         }
-        this.player.kickLeaveMessage = event.getLeaveMessage(); // CraftBukkit - SPIGOT-3034: Forward leave message to PlayerQuitEvent
         // Send the possibly modified leave message
         final Component ichatbasecomponent = io.papermc.paper.adventure.PaperAdventure.asVanilla(event.reason()); // Paper - Adventure
         // CraftBukkit end
@@ -316,7 +320,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
         this.connection.send(new ClientboundDisconnectPacket(ichatbasecomponent), PacketSendListener.thenRun(() -> {
             this.connection.disconnect(ichatbasecomponent);
         }));
-        this.onDisconnect(ichatbasecomponent); // CraftBukkit - fire quit instantly
+        this.onDisconnect(ichatbasecomponent, event.leaveMessage()); // CraftBukkit - fire quit instantly // Paper - use kick event leave message
         this.connection.setReadOnly();
         MinecraftServer minecraftserver = this.server;
         Connection networkmanager = this.connection;
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index c38d6ff1c4b22833ce8c99ec420741659becf4d2..eabdaf85e904224f936154d415d183ba65e4dbbf 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1855,6 +1855,12 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
 
     @Override
     public void onDisconnect(Component reason) {
+        // Paper start
+        this.onDisconnect(reason, null);
+    }
+    @Override
+    public void onDisconnect(Component reason, @Nullable net.kyori.adventure.text.Component quitMessage) {
+        // Paper end
         // CraftBukkit start - Rarely it would send a disconnect line twice
         if (this.processedDisconnect) {
             return;
@@ -1863,11 +1869,17 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
         }
         // CraftBukkit end
         ServerGamePacketListenerImpl.LOGGER.info("{} lost connection: {}", this.player.getName().getString(), reason.getString());
-        this.removePlayerFromWorld();
-        super.onDisconnect(reason);
+        this.removePlayerFromWorld(quitMessage); // Paper
+        super.onDisconnect(reason, quitMessage); // Paper
     }
 
+    // Paper start
     private void removePlayerFromWorld() {
+        this.removePlayerFromWorld(null);
+    }
+
+    private void removePlayerFromWorld(@Nullable net.kyori.adventure.text.Component quitMessage) {
+        // Paper end
         this.chatMessageChain.close();
         // CraftBukkit start - Replace vanilla quit message handling with our own.
         /*
@@ -1877,7 +1889,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
 
         this.player.disconnect();
         // Paper start - Adventure
-        net.kyori.adventure.text.Component quitMessage = this.server.getPlayerList().remove(this.player);
+        quitMessage = quitMessage == null ? this.server.getPlayerList().remove(this.player) : this.server.getPlayerList().remove(this.player, quitMessage); // Paper - pass in quitMessage to fix kick message not being used
         if ((quitMessage != null) && !quitMessage.equals(net.kyori.adventure.text.Component.empty())) {
             this.server.getPlayerList().broadcastSystemMessage(PaperAdventure.asVanilla(quitMessage), false);
             // Paper end
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 0139313fb1b06da9df19317748862700c1b5b6e9..e9b012889987d3c0fca2c90a4edee36b2c86cb88 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -551,6 +551,11 @@ public abstract class PlayerList {
     }
 
     public net.kyori.adventure.text.Component remove(ServerPlayer entityplayer) { // CraftBukkit - return string // Paper - return Component
+        // Paper start
+        return this.remove(entityplayer, 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() : io.papermc.paper.adventure.PaperAdventure.asAdventure(entityplayer.getDisplayName())));
+    }
+    public net.kyori.adventure.text.Component remove(ServerPlayer entityplayer, net.kyori.adventure.text.Component leaveMessage) {
+        // Paper end
         ServerLevel worldserver = entityplayer.serverLevel();
 
         entityplayer.awardStat(Stats.LEAVE_GAME);
@@ -561,7 +566,7 @@ 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() : io.papermc.paper.adventure.PaperAdventure.asAdventure(entityplayer.getDisplayName())), entityplayer.quitReason); // Paper - Adventure & quit reason
+        PlayerQuitEvent playerQuitEvent = new PlayerQuitEvent(entityplayer.getBukkitEntity(), leaveMessage, entityplayer.quitReason); // Paper - Adventure & quit reason
         this.cserver.getPluginManager().callEvent(playerQuitEvent);
         entityplayer.getBukkitEntity().disconnect(playerQuitEvent.getQuitMessage());