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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
85 lines
4.6 KiB
Diff
85 lines
4.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Tue, 30 May 2023 12:59:10 -0700
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Subject: [PATCH] Refresh ProjectileSource for projectiles
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Makes sure the value returned by Projectile#getShooter in
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the API matches the owner UUID specified in the entity nbt.
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Previously, after the entity reloaded, Projectile#getShooter
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would return null, while the entity still had an owner.
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Also fixes setting the shooter/owner to null actually
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clearing the owner.
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Co-authored-by: Warrior <50800980+Warriorrrr@users.noreply.github.com>
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diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
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index d24c2e23a12a196e1f6dc4f5c6d3c69472ddc704..c173ecd1283331afcf4db010e65764e5ed6e1eff 100644
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--- a/src/main/java/net/minecraft/world/entity/Entity.java
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+++ b/src/main/java/net/minecraft/world/entity/Entity.java
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@@ -384,6 +384,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
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public boolean inWorld = false;
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public boolean generation;
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public int maxAirTicks = this.getDefaultMaxAirSupply(); // CraftBukkit - SPIGOT-6907: re-implement LivingEntity#setMaximumAir()
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+ @Nullable // Paper - Refresh ProjectileSource for projectiles
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public org.bukkit.projectiles.ProjectileSource projectileSource; // For projectiles only
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public boolean lastDamageCancelled; // SPIGOT-5339, SPIGOT-6252, SPIGOT-6777: Keep track if the event was canceled
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public boolean persistentInvisibility = false;
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diff --git a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
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index 0a207f3f2e4c0790e784fb4b0c3c2dfa49c39724..156809090f1f83ad68e7e2477a3cfddac5757a8e 100644
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--- a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
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+++ b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
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@@ -50,14 +50,31 @@ public abstract class Projectile extends Entity implements TraceableEntity {
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this.ownerUUID = entity.getUUID();
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this.cachedOwner = entity;
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}
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- this.projectileSource = (entity != null && entity.getBukkitEntity() instanceof ProjectileSource) ? (ProjectileSource) entity.getBukkitEntity() : null; // CraftBukkit
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-
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+ // Paper start - Refresh ProjectileSource for projectiles
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+ else {
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+ this.ownerUUID = null;
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+ this.cachedOwner = null;
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+ this.projectileSource = null;
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+ }
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+ // Paper end - Refresh ProjectileSource for projectiles
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+ this.refreshProjectileSource(false); // Paper
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+ }
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+ // Paper start - Refresh ProjectileSource for projectiles
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+ public void refreshProjectileSource(boolean fillCache) {
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+ if (fillCache) {
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+ this.getOwner();
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+ }
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+ if (this.cachedOwner != null && !this.cachedOwner.isRemoved() && this.projectileSource == null && this.cachedOwner.getBukkitEntity() instanceof ProjectileSource projSource) {
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+ this.projectileSource = projSource;
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+ }
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}
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+ // Paper end - Refresh ProjectileSource for projectiles
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@Nullable
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@Override
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public Entity getOwner() {
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if (this.cachedOwner != null && !this.cachedOwner.isRemoved()) {
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+ this.refreshProjectileSource(false); // Paper - Refresh ProjectileSource for projectiles
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return this.cachedOwner;
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} else {
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if (this.ownerUUID != null) {
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@@ -67,6 +84,7 @@ public abstract class Projectile extends Entity implements TraceableEntity {
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ServerLevel worldserver = (ServerLevel) world;
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this.cachedOwner = worldserver.getEntity(this.ownerUUID);
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+ this.refreshProjectileSource(false); // Paper - Refresh ProjectileSource for projectiles
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return this.cachedOwner;
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}
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/AbstractProjectile.java b/src/main/java/org/bukkit/craftbukkit/entity/AbstractProjectile.java
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index c1c52f4fc5f900fac4098e5e37c52dfc4e82b8bb..236f94348ff8da661e23e3e17b7fc1b143680da9 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/AbstractProjectile.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/AbstractProjectile.java
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@@ -60,6 +60,7 @@ public abstract class AbstractProjectile extends CraftEntity implements Projecti
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@Override
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public final org.bukkit.projectiles.ProjectileSource getShooter() {
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+ this.getHandle().refreshProjectileSource(true); // Paper - Refresh ProjectileSource for projectiles
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return this.getHandle().projectileSource;
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}
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