papermc/Spigot-API-Patches/0044-IllegalPacketEvent.patch
Aikar 17b58d00d8
Unwrap Event Exceptions
This was a useless exception wrapper that ends up making
stack traces harder to read as well as the JVM cutting off
the important parts

Nothing catches this exception, so its safe to just get rid
of it and let the REAL exception bubble down
2019-02-23 12:17:41 -05:00

81 lines
2.4 KiB
Diff

From df9951c426373976f105802670f755706705761d 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 00000000..e11f74fc
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/event/player/IllegalPacketEvent.java
@@ -0,0 +1,63 @@
+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;
+
+public class IllegalPacketEvent extends PlayerEvent {
+ private final String type;
+ private final String ex;
+ private String kickMessage;
+ private boolean shouldKick = true;
+
+ public IllegalPacketEvent(Player player, String type, String kickMessage, 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;
+ }
+
+ public String getKickMessage() {
+ return kickMessage;
+ }
+
+ public void setKickMessage(String kickMessage) {
+ this.kickMessage = kickMessage;
+ }
+
+ public String getType() {
+ return type;
+ }
+
+ public String getExceptionMessage() {
+ return ex;
+ }
+
+ private static final HandlerList handlers = new HandlerList();
+
+ public HandlerList getHandlers() {
+ return handlers;
+ }
+
+ public static HandlerList getHandlerList() {
+ return handlers;
+ }
+
+ public static void process(Player player, String type, String kickMessage, 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());
+ }
+}
--
2.20.1