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https://github.com/PaperMC/Paper.git
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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.
70 lines
5.2 KiB
Diff
70 lines
5.2 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: Thu, 20 Jan 2022 18:11:20 -0800
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Subject: [PATCH] Expand PlayerItemMendEvent
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diff --git a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
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index a9c30fb4cfe4ff7bb27d498218373c572031fab8..36422fb394a158f36c84ba0ee03cc704956c91b2 100644
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--- a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
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+++ b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
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@@ -338,7 +338,7 @@ public class ExperienceOrb extends Entity {
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ItemStack itemstack = (ItemStack) entry.getValue();
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int j = Math.min(this.xpToDurability(amount), itemstack.getDamageValue());
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// CraftBukkit start
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- org.bukkit.event.player.PlayerItemMendEvent event = CraftEventFactory.callPlayerItemMendEvent(player, this, itemstack, entry.getKey(), j);
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+ org.bukkit.event.player.PlayerItemMendEvent event = CraftEventFactory.callPlayerItemMendEvent(player, this, itemstack, entry.getKey(), j, this::durabilityToXp); // Paper - Expand PlayerItemMendEvent
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j = event.getRepairAmount();
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if (event.isCancelled()) {
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return amount;
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@@ -346,8 +346,13 @@ public class ExperienceOrb extends Entity {
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// CraftBukkit end
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itemstack.setDamageValue(itemstack.getDamageValue() - j);
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- int k = amount - this.durabilityToXp(j);
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+ int k = amount - event.getDurabilityToXpOperation().applyAsInt(j); // Paper - Expand PlayerItemMendEvent
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this.value = k; // CraftBukkit - update exp value of orb for PlayerItemMendEvent calls
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+ // Paper start - Expand PlayerItemMendEvent
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+ if (j == 0 && amount == k) { // if repair amount is 0 and no xp was removed, don't do recursion; treat as cancelled
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+ return k;
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+ }
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+ // Paper end - Expand PlayerItemMendEvent
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return k > 0 ? this.repairPlayerItems(player, k) : 0;
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} else {
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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index 4996776287c58039507ad2eda9d59e3fd13c08a8..e111017c3de7b374c702fed20a5e98557011ea06 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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@@ -1757,11 +1757,11 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
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orb.setPosRaw(handle.getX(), handle.getY(), handle.getZ());
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int i = Math.min(orb.xpToDurability(amount), itemstack.getDamageValue());
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- org.bukkit.event.player.PlayerItemMendEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerItemMendEvent(handle, orb, itemstack, stackEntry.getKey(), i);
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+ org.bukkit.event.player.PlayerItemMendEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerItemMendEvent(handle, orb, itemstack, stackEntry.getKey(), i, orb::durabilityToXp); // Paper - Expand PlayerItemMendEvent
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i = event.getRepairAmount();
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orb.discard(org.bukkit.event.entity.EntityRemoveEvent.Cause.DESPAWN);
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if (!event.isCancelled()) {
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- amount -= orb.durabilityToXp(i);
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+ amount -= event.getDurabilityToXpOperation().applyAsInt(i); // Paper - Expand PlayerItemMendEvent
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itemstack.setDamageValue(itemstack.getDamageValue() - i);
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}
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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index 6c5908eecaaf2f2b41bc0074e183a2259fe4a9b2..52c1d39f494ba441bc93382d895679bcd15fcbde 100644
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--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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@@ -1271,10 +1271,10 @@ public class CraftEventFactory {
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return event;
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}
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- public static PlayerItemMendEvent callPlayerItemMendEvent(net.minecraft.world.entity.player.Player entity, net.minecraft.world.entity.ExperienceOrb orb, net.minecraft.world.item.ItemStack nmsMendedItem, net.minecraft.world.entity.EquipmentSlot slot, int repairAmount) {
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+ public static PlayerItemMendEvent callPlayerItemMendEvent(net.minecraft.world.entity.player.Player entity, net.minecraft.world.entity.ExperienceOrb orb, net.minecraft.world.item.ItemStack nmsMendedItem, net.minecraft.world.entity.EquipmentSlot slot, int repairAmount, java.util.function.IntUnaryOperator durabilityToXpOp) { // Paper - Expand PlayerItemMendEvent
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Player player = (Player) entity.getBukkitEntity();
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org.bukkit.inventory.ItemStack bukkitStack = CraftItemStack.asCraftMirror(nmsMendedItem);
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- PlayerItemMendEvent event = new PlayerItemMendEvent(player, bukkitStack, CraftEquipmentSlot.getSlot(slot), (ExperienceOrb) orb.getBukkitEntity(), repairAmount);
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+ PlayerItemMendEvent event = new PlayerItemMendEvent(player, bukkitStack, CraftEquipmentSlot.getSlot(slot), (ExperienceOrb) orb.getBukkitEntity(), repairAmount, durabilityToXpOp); // Paper - Expand PlayerItemMendEvent
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Bukkit.getPluginManager().callEvent(event);
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return event;
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}
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