Paper/patches/server/0980-Fix-NPE-on-null-loc-for-EntityTeleportEvent.patch
Nassim Jahnke fe53b0e76f
Updated Upstream (Bukkit/CraftBukkit/Spigot)
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:
1d522878 PR-966: Introduce getRespawnLocation as a replacement for getBedSpawnLocation
cc01b745 PR-965: Add DragonBattle#setPreviouslyKilled
28e3702f SPIGOT-6921, PR-957: Add methods to remove all enchantments on an ItemStack
8872404e PR-961: Add BlockData#copyTo
4054cc7b PR-956: Add method to get an offline player's location

CraftBukkit Changes:
292ec79e0 SPIGOT-7568: Call EntityChangeBlockEvent for DecoratedPot
b44bf5aa8 SPIGOT-7575: SuspiciousStewMeta creates invalid PotionEffect data
161784713 PR-1340: Centralize the conversion from and to Minecraft / Bukkit registry items even more and add a test case for them
b93c5a30d PR-1338: Introduce getRespawnLocation as a replacement for getBedSpawnLocation
fb973486c SPIGOT-7570: PrepareItemCraftEvent#isRepair() always returns false
c9c24535e PR-1337: Add DragonBattle#setPreviouslyKilled
c8b4da803 SPIGOT-6921, PR-1330: Add methods to remove all enchantments on an ItemStack
95bc1c4f5 PR-1333: Add BlockData#copyTo
36e2f9ce1 PR-1329: Add method to get an offline player's location

Spigot Changes:
c198da22 SPIGOT-7563: Update to latest release of bungeecord-chat
2024-01-26 20:19:17 +01:00

67 lines
4.5 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 3fec07b250a8f145e30c8c41888e47d2a3c902e1..2ddd033e1c3a2e5c8950b93c838491923803ccce 100644
--- a/src/main/java/net/minecraft/server/commands/TeleportCommand.java
+++ b/src/main/java/net/minecraft/server/commands/TeleportCommand.java
@@ -169,9 +169,10 @@ public class TeleportCommand {
Location to = new Location(world.getWorld(), x, y, z, f2, f3);
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
x = to.getX();
y = 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 d3d958b58934bcb513ffef474a9de58c61e654a2..976b9981d6022eab6b124dd279eac82364644585 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -4180,7 +4180,7 @@ 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/ai/goal/FollowOwnerGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/FollowOwnerGoal.java
index 8e2f7e2385588224018f7f94ed9686415bc91deb..c0da573e3818a1dd2c1ef5a61c7cb34934b0a252 100644
--- a/src/main/java/net/minecraft/world/entity/ai/goal/FollowOwnerGoal.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/FollowOwnerGoal.java
@@ -129,7 +129,7 @@ public class FollowOwnerGoal extends Goal {
} else {
// CraftBukkit start
EntityTeleportEvent event = CraftEventFactory.callEntityTeleportEvent(this.tamable, (double) x + 0.5D, (double) y, (double) z + 0.5D);
- if (event.isCancelled()) {
+ if (event.isCancelled() || event.getTo() == null) { // Paper
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 06ab07fb5d8d0e2f97325890218a11fef551a0ba..b73dac8f68041f8a2e0752d70cc9d08b5cfd1cde 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Shulker.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Shulker.java
@@ -408,7 +408,7 @@ 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());