Paper/CraftBukkit-Patches/0084-Disconnect-for-spam-in-the-main-thread.patch

From bb7fa8838e6ec0bfefb57159d8e33dc0e06cf6d2 Mon Sep 17 00:00:00 2001
From: Thinkofdeath <thethinkofdeath@gmail.com>
Date: Fri, 3 Jan 2014 17:30:52 +0000
Subject: [PATCH] Disconnect for spam in the main thread


diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 1903362..f7fdca3 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -838,7 +838,27 @@ public class PlayerConnection implements PacketPlayInListener {
             // this.chatThrottle += 20;
             if (chatSpamField.addAndGet(this, 20) > 200 && !this.minecraftServer.getPlayerList().isOp(this.player.getName())) {
                 // CraftBukkit end
-                this.disconnect("disconnect.spam");
+                if (packetplayinchat.a()) { // Spigot - Thread safety
+                    Waitable waitable = new Waitable() {
+                        @Override
+                        protected Object evaluate() {
+                            PlayerConnection.this.disconnect( "disconnect.spam" );
+                            return null;
+                        }
+                    };
+
+                    this.minecraftServer.processQueue.add(waitable);
+
+                    try {
+                        waitable.get();
+                    } catch (InterruptedException e) {
+                        Thread.currentThread().interrupt();
+                    } catch (ExecutionException e) {
+                        throw new RuntimeException(e);
+                    }
+                } else {
+                    PlayerConnection.this.disconnect( "disconnect.spam" );
+                }
             }
         }
     }
-- 
1.8.3.2