Paper/patches/api/0453-Clone-mutables-to-prevent-unexpected-issues.patch
Bjarne Koll e1c0033552
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:
2b4b6d14 PR-1023: Convert InventoryView to interface

CraftBukkit Changes:
68603b1c1 Use expanded interaction ranges for traced interact events
eae9f760c PR-1414: Convert InventoryView to interface
ee9eafe67 Fix Implementation for DamageSource#isIndirect for internal custom causing entity
2024-06-16 17:23:42 +02:00

152 lines
6.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 16 Mar 2024 11:10:48 -0700
Subject: [PATCH] Clone mutables to prevent unexpected issues
There are lots of locations in the API where mutable
types are not cloned, either on return or when passed
as a parameter and assigned to a field, which can cause
unexpected behaviors. Let this be a lesson to use
immutable types for simple things Location, Vector, and
others.
diff --git a/src/main/java/org/bukkit/event/block/BlockCanBuildEvent.java b/src/main/java/org/bukkit/event/block/BlockCanBuildEvent.java
index 08d09c2a92d8aa6adf6610cc05905d58a76fce1f..c74ac0cb004aa219ce2f761969a4bb46cb7c9160 100644
--- a/src/main/java/org/bukkit/event/block/BlockCanBuildEvent.java
+++ b/src/main/java/org/bukkit/event/block/BlockCanBuildEvent.java
@@ -102,7 +102,7 @@ public class BlockCanBuildEvent extends BlockEvent {
*/
@NotNull
public BlockData getBlockData() {
- return blockData;
+ return blockData.clone(); // Paper - clone because mutation isn't used
}
/**
diff --git a/src/main/java/org/bukkit/event/entity/EntityChangeBlockEvent.java b/src/main/java/org/bukkit/event/entity/EntityChangeBlockEvent.java
index 1a9575ad4c81aefa5ef0b927f6ac8f7064b55c49..24e1a49e48dd8f9eb2515b2ffe472a0c4d2bc09b 100644
--- a/src/main/java/org/bukkit/event/entity/EntityChangeBlockEvent.java
+++ b/src/main/java/org/bukkit/event/entity/EntityChangeBlockEvent.java
@@ -61,7 +61,7 @@ public class EntityChangeBlockEvent extends EntityEvent implements Cancellable {
*/
@NotNull
public BlockData getBlockData() {
- return to;
+ return to.clone(); // Paper - clone because mutation isn't used
}
@NotNull
diff --git a/src/main/java/org/bukkit/event/entity/EntityExplodeEvent.java b/src/main/java/org/bukkit/event/entity/EntityExplodeEvent.java
index 099efafa14c10910e4ed04abb1823f0c1a96b6a6..8506fa03293c575c35b55b052224807470fdbd98 100644
--- a/src/main/java/org/bukkit/event/entity/EntityExplodeEvent.java
+++ b/src/main/java/org/bukkit/event/entity/EntityExplodeEvent.java
@@ -59,7 +59,7 @@ public class EntityExplodeEvent extends EntityEvent implements Cancellable {
*/
@NotNull
public Location getLocation() {
- return location;
+ return location.clone(); // Paper - clone to avoid changes
}
/**
diff --git a/src/main/java/org/bukkit/event/entity/EntityPortalEnterEvent.java b/src/main/java/org/bukkit/event/entity/EntityPortalEnterEvent.java
index 6818e9f0ba32ca1a1e612703f7526b29f5a6438f..e4e3d2e22c28ef251d76c48ade267b4eb3749e7d 100644
--- a/src/main/java/org/bukkit/event/entity/EntityPortalEnterEvent.java
+++ b/src/main/java/org/bukkit/event/entity/EntityPortalEnterEvent.java
@@ -24,7 +24,7 @@ public class EntityPortalEnterEvent extends EntityEvent {
*/
@NotNull
public Location getLocation() {
- return location;
+ return location.clone(); // Paper - clone to avoid changes
}
@NotNull
diff --git a/src/main/java/org/bukkit/event/entity/ItemDespawnEvent.java b/src/main/java/org/bukkit/event/entity/ItemDespawnEvent.java
index 6fc66197eb2c5d59c70d8d028b7963748371edbe..2bb29fa449cd6c90b52d2786ed15b6154d591607 100644
--- a/src/main/java/org/bukkit/event/entity/ItemDespawnEvent.java
+++ b/src/main/java/org/bukkit/event/entity/ItemDespawnEvent.java
@@ -46,7 +46,7 @@ public class ItemDespawnEvent extends EntityEvent implements Cancellable {
*/
@NotNull
public Location getLocation() {
- return location;
+ return location.clone(); // Paper - clone to avoid changes
}
@NotNull
diff --git a/src/main/java/org/bukkit/event/vehicle/VehicleBlockCollisionEvent.java b/src/main/java/org/bukkit/event/vehicle/VehicleBlockCollisionEvent.java
index d0a437bd8aeec18f800893f51ece06deb0c8972c..50fad23cf4d9f591b12a9eaebeb4e26f18e8528d 100644
--- a/src/main/java/org/bukkit/event/vehicle/VehicleBlockCollisionEvent.java
+++ b/src/main/java/org/bukkit/event/vehicle/VehicleBlockCollisionEvent.java
@@ -31,7 +31,7 @@ public class VehicleBlockCollisionEvent extends VehicleCollisionEvent {
*/
@NotNull
public org.bukkit.util.Vector getVelocity() {
- return velocity;
+ return velocity.clone();
}
// Paper end
diff --git a/src/main/java/org/bukkit/event/vehicle/VehicleMoveEvent.java b/src/main/java/org/bukkit/event/vehicle/VehicleMoveEvent.java
index 7bfb84d3948c773e943374316ea25a19288ec7d0..fc4cf7b21b24fe38617fa150f697bc29da76754e 100644
--- a/src/main/java/org/bukkit/event/vehicle/VehicleMoveEvent.java
+++ b/src/main/java/org/bukkit/event/vehicle/VehicleMoveEvent.java
@@ -27,7 +27,7 @@ public class VehicleMoveEvent extends VehicleEvent {
*/
@NotNull
public Location getFrom() {
- return from;
+ return from.clone(); // Paper - clone to avoid changes
}
/**
@@ -37,7 +37,7 @@ public class VehicleMoveEvent extends VehicleEvent {
*/
@NotNull
public Location getTo() {
- return to;
+ return to.clone(); // Paper - clone to avoid changes
}
diff --git a/src/main/java/org/bukkit/event/world/GenericGameEvent.java b/src/main/java/org/bukkit/event/world/GenericGameEvent.java
index 2a2a329877d8da45c2d6afecf78ce88d52635cad..fb975fefc74d8c9746cab4c02860f55654cf92f7 100644
--- a/src/main/java/org/bukkit/event/world/GenericGameEvent.java
+++ b/src/main/java/org/bukkit/event/world/GenericGameEvent.java
@@ -49,7 +49,7 @@ public class GenericGameEvent extends WorldEvent implements Cancellable {
*/
@NotNull
public Location getLocation() {
- return location;
+ return location.clone(); // Paper - clone to avoid changes
}
/**
diff --git a/src/main/java/org/bukkit/event/world/SpawnChangeEvent.java b/src/main/java/org/bukkit/event/world/SpawnChangeEvent.java
index 9ce93d00935446589cb2bb970cb540d109616e85..73997ae04ff39ac3984c59de32aaced9eb72ce16 100644
--- a/src/main/java/org/bukkit/event/world/SpawnChangeEvent.java
+++ b/src/main/java/org/bukkit/event/world/SpawnChangeEvent.java
@@ -25,7 +25,7 @@ public class SpawnChangeEvent extends WorldEvent {
*/
@NotNull
public Location getPreviousLocation() {
- return previousLocation;
+ return previousLocation.clone(); // Paper - clone to avoid changes
}
@NotNull
diff --git a/src/main/java/org/bukkit/event/world/StructureGrowEvent.java b/src/main/java/org/bukkit/event/world/StructureGrowEvent.java
index 7af8d6e51c824cf0592b722b834f1d4986e3cc08..783e74bc382f0f6d24203fde7b811f588a674731 100644
--- a/src/main/java/org/bukkit/event/world/StructureGrowEvent.java
+++ b/src/main/java/org/bukkit/event/world/StructureGrowEvent.java
@@ -39,7 +39,7 @@ public class StructureGrowEvent extends WorldEvent implements Cancellable {
*/
@NotNull
public Location getLocation() {
- return location;
+ return location.clone(); // Paper - clone to avoid changes
}
/**