Paper/Spigot-Server-Patches/0296-Block-Enderpearl-Travel-Exploit.patch
Aikar 18c3716c49
Current Chunk for Entity and Block Entities, counts by entity type
This enables us a fast reference to the entities current chunk instead
of having to look it up by hashmap lookups.

We also store counts by type to further enable other performance optimizations in later patches.
2018-07-04 03:58:56 -04:00

44 lines
2.2 KiB
Diff

From da411565a450dfde5e88a3a952b09b3c6f182340 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 30 Apr 2018 17:15:26 -0400
Subject: [PATCH] Block Enderpearl Travel Exploit
Players are able to use alt accounts and enderpearls to travel
long distances utilizing the pearls in unloaded chunks and loading
the chunk later when convenient.
This disables that by not saving the thrower when the chunk is unloaded.
This is mainly useful for survival servers that do not allow freeform teleporting.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 99d681ef1..03a9a96fc 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -513,4 +513,10 @@ public class PaperWorldConfig {
allowPermaChunkLoaders = getBoolean("game-mechanics.allow-permanent-chunk-loaders", allowPermaChunkLoaders);
log("Allow Perma Chunk Loaders: " + (allowPermaChunkLoaders ? "enabled" : "disabled"));
}
+
+ public boolean disableEnderpearlExploit = true;
+ private void disableEnderpearlExploit() {
+ disableEnderpearlExploit = getBoolean("game-mechanics.disable-unloaded-chunk-enderpearl-exploit", disableEnderpearlExploit);
+ log("Disable Unloaded Chunk Enderpearl Exploit: " + (disableEnderpearlExploit ? "enabled" : "disabled"));
+ }
}
diff --git a/src/main/java/net/minecraft/server/EntityProjectile.java b/src/main/java/net/minecraft/server/EntityProjectile.java
index 01c7fcc8b..8e6428a0c 100644
--- a/src/main/java/net/minecraft/server/EntityProjectile.java
+++ b/src/main/java/net/minecraft/server/EntityProjectile.java
@@ -271,6 +271,7 @@ public abstract class EntityProjectile extends Entity implements IProjectile {
if (this.shooterName != null && this.shooterName.isEmpty()) {
this.shooterName = null;
}
+ if (this instanceof EntityEnderPearl && this.world != null && this.world.paperConfig.disableEnderpearlExploit) { this.shooterName = null; } // Paper - Don't store shooter name for pearls to block enderpearl travel exploit
this.shooter = this.getShooter();
}
--
2.18.0