PaperMC/patches/server/0974-Fix-NPE-on-null-loc-for-EntityTeleportEvent.patch
Nassim Jahnke 31699ae9a8
Updated Upstream (Bukkit/CraftBukkit) (#10242)
* 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:
a6a9d2a4 Remove some old ApiStatus.Experimental annotations
be72314c SPIGOT-7300, PR-829: Add new DamageSource API providing enhanced information about entity damage
b252cf05 SPIGOT-7576, PR-970: Add methods in MushroomCow to change stew effects
b1c689bd PR-902: Add Server#isLoggingIPs to get log-ips configuration
08f86d1c PR-971: Add Player methods for client-side potion effects
2e3024a9 PR-963: Add API for in-world structures
a23292a7 SPIGOT-7530, PR-948: Improve Resource Pack API with new 1.20.3 functionality
1851857b SPIGOT-3071, PR-969: Add entity spawn method with spawn reason
cde4c52a SPIGOT-5553, PR-964: Add EntityKnockbackEvent

CraftBukkit Changes:
38fd4bd50 Fix accidentally renamed internal damage method
80f0ce4be SPIGOT-7300, PR-1180: Add new DamageSource API providing enhanced information about entity damage
7e43f3b16 SPIGOT-7581: Fix typo in BlockMushroom
ea14b7d90 SPIGOT-7576, PR-1347: Add methods in MushroomCow to change stew effects
4c687f243 PR-1259: Add Server#isLoggingIPs to get log-ips configuration
22a541a29 Improve support for per-world game rules
cb7dccce2 PR-1348: Add Player methods for client-side potion effects
b8d6109f0 PR-1335: Add API for in-world structures
4398a1b5b SPIGOT-7577: Make CraftWindCharge#explode discard the entity
e74107678 Fix Crafter maximum stack size
0bb0f4f6a SPIGOT-7530, PR-1314: Improve Resource Pack API with new 1.20.3 functionality
4949f556d SPIGOT-3071, PR-1345: Add entity spawn method with spawn reason
20ac73ca2 PR-1353: Fix Structure#place not working as documented with 0 palette
3c1b77871 SPIGOT-6911, PR-1349: Change max book length in CraftMetaBook
333701839 SPIGOT-7572: Bee nests generated without bees
f48f4174c SPIGOT-5553, PR-1336: Add EntityKnockbackEvent
2024-02-11 22:28:00 +01:00

66 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 728136663685882c6fd2d94900a27368c7c340f1..4591011a142f33f0c0ff84a2765cededde0e0c57 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -4193,7 +4193,7 @@ 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());