Paper/patches/server/0388-Fix-numerous-item-duplication-issues-and-teleport-is.patch
Jake Potrebic 29b17a892d
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#9088)
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:
5efeb7bd Also update compiler version
c13b867a Update some Maven plugin versions
deb28d9f PR-837: Add more bell API
e938d62a PR-819: Allow Player#sendBlockDamage() to specify a source entity
0e75532c PR-818: Add more Guardian API, particularly for its laser
a10155aa PR-839: Add BlockData#rotate and BlockData#mirror
77e690b4 PR-836: Add missing API for explosive minecarts
60722059 PR-832: Allow getting chunks without generating them and optimize chunk data request for ungenerated chunks
0a2c4b4b PR-834: Add Player#sendHurtAnimation()

CraftBukkit Changes:
be8682aa8 Also update compiler version
08e305f5b Update some Maven plugin versions
187bdd463 PR-1160: Add more bell API
2f8e5bc7c PR-1145: Allow Player#sendBlockDamage() to specify a source entity
bcbb61b36 PR-1144: Add more Guardian API, particularly for its laser
722ddff6d PR-1162: Add BlockData#rotate and BlockData#mirror
80998277c PR-1159: Add missing API for explosive minecarts
1fddefce1 PR-1155: Allow getting chunks without generating them and optimize chunk data request for ungenerated chunks
20e8a486f PR-1157: Add Player#sendHurtAnimation()

Spigot Changes:
b31949f2 Rebuild patches
2023-04-07 19:39:13 +01:00

168 Zeilen
10 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 25 Apr 2020 06:46:35 -0400
Subject: [PATCH] Fix numerous item duplication issues and teleport issues
This notably fixes the newest "Donkey Dupe", but also fixes a lot
of dupe bugs in general around nether portals and entity world transfer
We also fix item duplication generically by anytime we clone an item
to drop it on the ground, destroy the source item.
This avoid an itemstack ever existing twice in the world state pre
clean up stage.
So even if something NEW comes up, it would be impossible to drop the
same item twice because the source was destroyed.
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index d04c5cd4afd09fbe511811a198135c19ee99c036..52339e85607adb77c260744a48701d8d8da4ef2e 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2329,11 +2329,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
} else {
// CraftBukkit start - Capture drops for death event
if (this instanceof net.minecraft.world.entity.LivingEntity && !((net.minecraft.world.entity.LivingEntity) this).forceDrops) {
- ((net.minecraft.world.entity.LivingEntity) this).drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(stack));
+ ((net.minecraft.world.entity.LivingEntity) this).drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(stack)); // Paper - mirror so we can destroy it later
return null;
}
// CraftBukkit end
- ItemEntity entityitem = new ItemEntity(this.level, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack);
+ ItemEntity entityitem = new ItemEntity(this.level, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack.copy()); // Paper - clone so we can destroy original
+ stack.setCount(0); // Paper - destroy this item - if this ever leaks due to game bugs, ensure it doesn't dupe
entityitem.setDefaultPickUpDelay();
// CraftBukkit start
@@ -3114,6 +3115,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
@Nullable
public Entity teleportTo(ServerLevel worldserver, PositionImpl location) {
// CraftBukkit end
+ // Paper start - fix bad state entities causing dupes
+ if (!isAlive() || !valid) {
+ LOGGER.warn("Illegal Entity Teleport " + this + " to " + worldserver + ":" + location, new Throwable());
+ return null;
+ }
+ // Paper end
if (this.level instanceof ServerLevel && !this.isRemoved()) {
this.level.getProfiler().push("changeDimension");
// CraftBukkit start
@@ -3140,6 +3147,11 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
// CraftBukkit end
this.level.getProfiler().popPush("reloading");
+ // Paper start - Change lead drop timing to prevent dupe
+ if (this instanceof Mob) {
+ ((Mob) this).dropLeash(true, true); // Paper drop lead
+ }
+ // Paper end
Entity entity = this.getType().create(worldserver);
if (entity != null) {
@@ -3153,10 +3165,6 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
// CraftBukkit start - Forward the CraftEntity to the new entity
this.getBukkitEntity().setHandle(entity);
entity.bukkitEntity = this.getBukkitEntity();
-
- if (this instanceof Mob) {
- ((Mob) this).dropLeash(true, false); // Unleash to prevent duping of leads.
- }
// CraftBukkit end
}
@@ -3277,7 +3285,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
}
public boolean canChangeDimensions() {
- return !this.isPassenger() && !this.isVehicle();
+ return !this.isPassenger() && !this.isVehicle() && isAlive() && valid; // Paper
}
public float getBlockExplosionResistance(Explosion explosion, BlockGetter world, BlockPos pos, BlockState blockState, FluidState fluidState, float max) {
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index f7ae0c52313f4d8c64849605148f8293e0e96141..65f5381c3362b16fa709728458f87b9283b73291 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -1636,9 +1636,9 @@ public abstract class LivingEntity extends Entity implements Attackable {
// Paper start
org.bukkit.event.entity.EntityDeathEvent deathEvent = this.dropAllDeathLoot(damageSource);
if (deathEvent == null || !deathEvent.isCancelled()) {
- if (this.deathScore >= 0 && entityliving != null) {
- entityliving.awardKillScore(this, this.deathScore, damageSource);
- }
+ // if (this.deathScore >= 0 && entityliving != null) { // Paper moved to be run earlier in #dropAllDeathLoot before destroying the drop items in CraftEventFactory#callEntityDeathEvent
+ // entityliving.awardKillScore(this, this.deathScore, damageSource);
+ // }
// Paper start - clear equipment if event is not cancelled
if (this instanceof Mob) {
for (EquipmentSlot slot : this.clearedEquipmentSlots) {
@@ -1736,8 +1736,13 @@ public abstract class LivingEntity extends Entity implements Attackable {
this.dropCustomDeathLoot(source, i, flag);
this.clearEquipmentSlots = prev; // Paper
}
- // CraftBukkit start - Call death event
- org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, this.drops); // Paper
+ // CraftBukkit start - Call death event // Paper start - call advancement triggers with correct entity equipment
+ org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, this.drops, () -> {
+ final LivingEntity entityliving = this.getKillCredit();
+ if (this.deathScore >= 0 && entityliving != null) {
+ entityliving.awardKillScore(this, this.deathScore, source);
+ }
+ }); // Paper end
this.postDeathDropItems(deathEvent); // Paper
this.drops = new ArrayList<>();
// CraftBukkit end
diff --git a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
index dbb4bfb3d1f1ce2e435ca531be36ea448c0e3212..3be5ea477cb3dd3ce75f3feced8daf7cce7075cd 100644
--- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
+++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
@@ -627,7 +627,7 @@ public class ArmorStand extends LivingEntity {
for (i = 0; i < this.handItems.size(); ++i) {
itemstack = (ItemStack) this.handItems.get(i);
if (!itemstack.isEmpty()) {
- drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
+ drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack)); // CraftBukkit - add to drops // Paper - mirror so we can destroy it later - though this call site was safe
this.handItems.set(i, ItemStack.EMPTY);
}
}
@@ -635,7 +635,7 @@ public class ArmorStand extends LivingEntity {
for (i = 0; i < this.armorItems.size(); ++i) {
itemstack = (ItemStack) this.armorItems.get(i);
if (!itemstack.isEmpty()) {
- drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
+ drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack)); // CraftBukkit - add to drops // Paper - mirror so we can destroy it later - though this call site was safe
this.armorItems.set(i, ItemStack.EMPTY);
}
}
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index e35f44571666d125bb2ce6c30037c6298e428c3f..81d1654ed3520df5cecb929b7089528893b2fd29 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -825,6 +825,11 @@ public class CraftEventFactory {
}
public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, List<org.bukkit.inventory.ItemStack> drops) {
+ // Paper start
+ return CraftEventFactory.callEntityDeathEvent(victim, drops, com.google.common.util.concurrent.Runnables.doNothing());
+ }
+ public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, List<org.bukkit.inventory.ItemStack> drops, Runnable lootCheck) {
+ // Paper end
CraftLivingEntity entity = (CraftLivingEntity) victim.getBukkitEntity();
EntityDeathEvent event = new EntityDeathEvent(entity, drops, victim.getExpReward());
populateFields(victim, event); // Paper - make cancellable
@@ -838,11 +843,13 @@ public class CraftEventFactory {
playDeathSound(victim, event);
// Paper end
victim.expToDrop = event.getDroppedExp();
+ lootCheck.run(); // Paper - advancement triggers before destroying items
for (org.bukkit.inventory.ItemStack stack : event.getDrops()) {
if (stack == null || stack.getType() == Material.AIR || stack.getAmount() == 0) continue;
- world.dropItem(entity.getLocation(), stack);
+ world.dropItem(entity.getLocation(), stack); // Paper - note: dropItem already clones due to this being bukkit -> NMS
+ if (stack instanceof CraftItemStack) stack.setAmount(0); // Paper - destroy this item - if this ever leaks due to game bugs, ensure it doesn't dupe, but don't nuke bukkit stacks of manually added items
}
return event;