Paper/Spigot-API-Patches/0044-IllegalPacketEvent.patch

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From 9ee58b2c80de2903db18ea2c163a6b6e2aae5084 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 4 Dec 2016 01:19:14 -0500
Subject: [PATCH] IllegalPacketEvent
Fire an event when an illegal packet is received to let plugins handle it
Lets plugins change the kick message and if it should kick or not.
diff --git a/src/main/java/com/destroystokyo/paper/event/player/IllegalPacketEvent.java b/src/main/java/com/destroystokyo/paper/event/player/IllegalPacketEvent.java
new file mode 100644
index 000000000..37a17f0bb
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/event/player/IllegalPacketEvent.java
@@ -0,0 +1,70 @@
+package com.destroystokyo.paper.event.player;
+
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.player.PlayerEvent;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class IllegalPacketEvent extends PlayerEvent {
+ @Nullable private final String type;
+ @Nullable private final String ex;
+ @Nullable private String kickMessage;
+ private boolean shouldKick = true;
+
+ public IllegalPacketEvent(@NotNull Player player, @Nullable String type, @Nullable String kickMessage, @NotNull Exception e) {
+ super(player);
+ this.type = type;
+ this.kickMessage = kickMessage;
+ this.ex = e.getMessage();
+ }
+
+ public boolean isShouldKick() {
+ return shouldKick;
+ }
+
+ public void setShouldKick(boolean shouldKick) {
+ this.shouldKick = shouldKick;
+ }
+
+ @Nullable
+ public String getKickMessage() {
+ return kickMessage;
+ }
+
+ public void setKickMessage(@Nullable String kickMessage) {
+ this.kickMessage = kickMessage;
+ }
+
+ @Nullable
+ public String getType() {
+ return type;
+ }
+
+ @Nullable
+ public String getExceptionMessage() {
+ return ex;
+ }
+
+ private static final HandlerList handlers = new HandlerList();
+
+ @NotNull
+ public HandlerList getHandlers() {
+ return handlers;
+ }
+
+ @NotNull
+ public static HandlerList getHandlerList() {
+ return handlers;
+ }
+
+ public static void process(@NotNull Player player, @Nullable String type, @Nullable String kickMessage, @NotNull Exception exception) {
+ IllegalPacketEvent event = new IllegalPacketEvent(player, type, kickMessage, exception);
+ event.callEvent();
+ if (event.shouldKick) {
+ player.kickPlayer(kickMessage);
+ }
+ Bukkit.getLogger().severe(player.getName() + "/" + type + ": " + exception.getMessage());
+ }
+}
--
2.21.0