Paper/patches/server/0903-Fix-NPE-on-null-loc-for-EntityTeleportEvent.patch
Spottedleaf da9d110d5b Remove chunk save reattempt patch
This patch does not appear to be doing anything useful, and may
hide errors.

Currently, the save logic does not run through this path either
so it did not do anything.

Additionally, properly implement support for handling
RegionFileSizeException in Moonrise.
2024-11-28 18:27:59 -08:00

67 lines
4.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 9 Dec 2023 19:15:59 -0800
Subject: [PATCH] Fix NPE on null loc for EntityTeleportEvent
EntityTeleportEvent#setTo is marked as nullable and so is the
getTo method. This fixes the handling of a null "to" location
by treating it the same as the event being cancelled. This is
already existing behavior for the EntityPortalEvent (which
extends EntityTeleportEvent).
diff --git a/src/main/java/net/minecraft/server/commands/TeleportCommand.java b/src/main/java/net/minecraft/server/commands/TeleportCommand.java
index c6dcc37ac5fcf50bcb246f533b99983dfc5c19c2..c13b6f14c3061710c2b27034db240cc94ec0fcb5 100644
--- a/src/main/java/net/minecraft/server/commands/TeleportCommand.java
+++ b/src/main/java/net/minecraft/server/commands/TeleportCommand.java
@@ -181,9 +181,10 @@ public class TeleportCommand {
Location to = new Location(world.getWorld(), d3, d4, d5, f4, f5);
EntityTeleportEvent event = new EntityTeleportEvent(target.getBukkitEntity(), target.getBukkitEntity().getLocation(), to);
world.getCraftServer().getPluginManager().callEvent(event);
- if (event.isCancelled()) {
+ if (event.isCancelled() || event.getTo() == null) { // Paper
return;
}
+ to = event.getTo(); // Paper - actually track new location
d3 = to.getX();
d4 = to.getY();
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 4fbd23d1783642becb39a404b988eb44c418c3b5..bd2df2a70e78b68b5eefd9c0b6fe14f9717fb1d7 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -4364,7 +4364,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
if (!(this instanceof ServerPlayer)) {
EntityTeleportEvent teleport = new EntityTeleportEvent(this.getBukkitEntity(), new Location(this.level().getWorld(), d3, d4, d5), new Location(this.level().getWorld(), d0, d6, d2));
this.level().getCraftServer().getPluginManager().callEvent(teleport);
- if (!teleport.isCancelled()) {
+ if (!teleport.isCancelled() && teleport.getTo() != null) { // Paper
Location to = teleport.getTo();
this.teleportTo(to.getX(), to.getY(), to.getZ());
} else {
diff --git a/src/main/java/net/minecraft/world/entity/TamableAnimal.java b/src/main/java/net/minecraft/world/entity/TamableAnimal.java
index f6a253e063f4a2cf78a036e44431806a0ba270d9..332ae836826270507110f1e0438aaa36d6e9deb5 100644
--- a/src/main/java/net/minecraft/world/entity/TamableAnimal.java
+++ b/src/main/java/net/minecraft/world/entity/TamableAnimal.java
@@ -314,7 +314,7 @@ public abstract class TamableAnimal extends Animal implements OwnableEntity {
} else {
// CraftBukkit start
EntityTeleportEvent event = CraftEventFactory.callEntityTeleportEvent(this, (double) x + 0.5D, (double) y, (double) z + 0.5D);
- if (event.isCancelled()) {
+ if (event.isCancelled() || event.getTo() == null) { // Paper - prevent NP on null event to location
return false;
}
Location to = event.getTo();
diff --git a/src/main/java/net/minecraft/world/entity/monster/Shulker.java b/src/main/java/net/minecraft/world/entity/monster/Shulker.java
index dc1870baf172982ebb34eccd4ee79497f48f8050..0fffa9dbcbbb15a2138f9a4e4d8e812c8047a7bb 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Shulker.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Shulker.java
@@ -416,7 +416,7 @@ public class Shulker extends AbstractGolem implements VariantHolder<Optional<Dye
if (enumdirection != null) {
// CraftBukkit start
EntityTeleportEvent teleportEvent = CraftEventFactory.callEntityTeleportEvent(this, blockposition1.getX(), blockposition1.getY(), blockposition1.getZ());
- if (teleportEvent.isCancelled()) {
+ if (teleportEvent.isCancelled() || teleportEvent.getTo() == null) { // Paper
return false;
} else {
blockposition1 = CraftLocation.toBlockPosition(teleportEvent.getTo());