Paper/Spigot-Server-Patches/0339-Fix-PlayerEditBookEvent.patch

34 lines
1.8 KiB
Diff
Raw Normal View History

From cb895d9ef28baa9eca87bf0ab6c4ffc5d49eff14 Mon Sep 17 00:00:00 2001
2019-05-05 19:19:34 +02:00
From: Michael Himing <mhiming@gmail.com>
Date: Sun, 16 Dec 2018 13:07:33 +1100
Subject: [PATCH] Fix PlayerEditBookEvent
- Updating book writing (not signing) mutated the original item, making
it impossible to properly cancel the event or modify the book meta
- When the event was cancelled, the client's book would keep the
cancelled writing
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 784f0a3f22..4b3ddfd990 100644
2019-05-05 19:19:34 +02:00
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -871,9 +871,11 @@ public class PlayerConnection implements PacketListenerPlayIn {
2019-05-05 19:19:34 +02:00
itemstack2.a("pages", (NBTBase) nbttaglist);
this.player.a(packetplayinbedit.d(), CraftEventFactory.handleEditBookEvent(player, enumitemslot, itemstack1, itemstack2)); // CraftBukkit
} else {
- ItemStack old = itemstack1.cloneItemStack(); // CraftBukkit
- itemstack1.a("pages", (NBTBase) itemstack.getTag().getList("pages", 8));
- CraftEventFactory.handleEditBookEvent(player, enumitemslot, old, itemstack1); // CraftBukkit
+ // Paper start - dont mutate players current item, set it from the event
+ ItemStack newBook = itemstack1.cloneItemStack();
+ newBook.getOrCreateTagAndSet("pages", (NBTBase)itemstack.getTag().getList("pages", 8));
+ this.player.setSlot(enumitemslot, CraftEventFactory.handleEditBookEvent(player, enumitemslot, itemstack1, newBook));
+ // Paper end
}
}
--
2.25.1
2019-05-05 19:19:34 +02:00