Paper/patches/server/0190-Block-Enderpearl-Travel-Exploit.patch
Nassim Jahnke 6bafacfb14 Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
9a294519 SPIGOT-7533, 943: Add missing Poses for 1.20.3
be2884c4 Add unique ID to PlayerResourcePackStatusEvent
d9c1eb83 Add additional @MinecraftExperimental annotations
68f5bb6a SPIGOT-7526: Add missing PlayerResourcePackStatusEvent statuses

CraftBukkit Changes:
368c48be1 Fix formatting issue in previous commit
da8f91f31 SPIGOT-7534: Error when chunk with decorated pot trying to save
d20c9291a SPIGOT-7532: Entity#isValid() returns false after server restart
ec1fa2ead PR-1309: Add tests for Bukkit Pose
5a7080b58 Add unique ID to PlayerResourcePackStatusEvent
0fd734950 SPIGOT-7528: Fix certain custom shaped recipes
2023-12-06 23:01:51 +01:00

47 lines
2.5 KiB
Diff

From 0000000000000000000000000000000000000000 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.
== AT ==
public net.minecraft.world.entity.projectile.Projectile cachedOwner
public net.minecraft.world.entity.projectile.Projectile ownerUUID
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 97554ab72743cf2b8e87c7f3c35579f669c2308a..6d75010bf837a791f5fe04aacb973246410bbd66 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -2354,6 +2354,12 @@ public class ServerLevel extends Level implements WorldGenLevel {
public void onTickingEnd(Entity entity) {
ServerLevel.this.entityTickList.remove(entity);
+ // Paper start - Reset pearls when they stop being ticked
+ if (paperConfig().fixes.disableUnloadedChunkEnderpearlExploit && entity instanceof net.minecraft.world.entity.projectile.ThrownEnderpearl pearl) {
+ pearl.cachedOwner = null;
+ pearl.ownerUUID = null;
+ }
+ // Paper end
}
public void onTrackingStart(Entity entity) {
diff --git a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
index fbbb1fa3d5f4ace67fee96aa235cec3b39deb7b1..e8620ad6be2dda7fe288f884c4ae88a924be4a62 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
@@ -101,6 +101,7 @@ public abstract class Projectile extends Entity implements TraceableEntity {
if (nbt.hasUUID("Owner")) {
this.ownerUUID = nbt.getUUID("Owner");
this.cachedOwner = null;
+ if (this instanceof ThrownEnderpearl && this.level() != null && this.level().paperConfig().fixes.disableUnloadedChunkEnderpearlExploit) { this.ownerUUID = null; } // Paper - Don't store shooter name for pearls to block enderpearl travel exploit
}
this.leftOwner = nbt.getBoolean("LeftOwner");