Scissors/patches/server/0022-Validate-coordinates-before-attempting-to-get-block-.patch
2023-05-06 15:53:47 -05:00

65 lines
3.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Video <videogamesm12@gmail.com>
Date: Wed, 27 Jul 2022 22:30:39 -0500
Subject: [PATCH] Validate coordinates before attempting to get block entities
when handling Creative Inventory packets
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 04a92f33f15d1696e38d38839651adf7d0462cac..f0d83628bd1fae7075713629dd0acccc22a462a6 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1921,6 +1921,18 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
}
// Spigot end
+ // Scissors start - Readd the following Paper code
+ // Paper start
+ private static final int SURVIVAL_PLACE_DISTANCE_SQUARED = 6 * 6;
+ private static final int CREATIVE_PLACE_DISTANCE_SQUARED = 7 * 7;
+ private boolean isOutsideOfReach(double x, double y, double z) {
+ Location eyeLoc = this.getCraftPlayer().getEyeLocation();
+ double reachDistance = org.bukkit.util.NumberConversions.square(eyeLoc.getX() - x) + org.bukkit.util.NumberConversions.square(eyeLoc.getY() - y) + org.bukkit.util.NumberConversions.square(eyeLoc.getZ() - z);
+ return reachDistance > (this.getCraftPlayer().getGameMode() == org.bukkit.GameMode.CREATIVE ? CREATIVE_PLACE_DISTANCE_SQUARED : SURVIVAL_PLACE_DISTANCE_SQUARED);
+ }
+ // Paper end
+ // Scissors end
+
@Override
public void handleUseItemOn(ServerboundUseItemOnPacket packet) {
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());
@@ -3339,17 +3351,24 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
if (!itemstack.isEmpty() && nbttagcompound != null && nbttagcompound.contains("x") && nbttagcompound.contains("y") && nbttagcompound.contains("z") && this.player.getBukkitEntity().hasPermission("minecraft.nbt.copy")) { // Spigot
BlockPos blockposition = BlockEntity.getPosFromTag(nbttagcompound);
- if (this.player.level.isLoaded(blockposition)) {
- // Paper start
- BlockEntity tileentity = null;
- if (this.player.distanceToSqr(blockposition.getX(), blockposition.getY(), blockposition.getZ()) < 32 * 32 && this.player.getLevel().isLoadedAndInBounds(blockposition)) {
- tileentity = this.player.level.getBlockEntity(blockposition);
- }
- // Paper end
+ if (this.player.level.isLoaded(blockposition))
+ {
+ // Scissors start - Validate coordinates and whether the player can reach them
+ if (Level.isInSpawnableBounds(blockposition) && !isOutsideOfReach(blockposition.getX(), blockposition.getY(), blockposition.getZ()))
+ {
+ BlockEntity tileentity = null;
+ if (this.player.distanceToSqr(blockposition.getX(), blockposition.getY(), blockposition.getZ()) < 32 * 32 && this.player.getLevel().isLoadedAndInBounds(blockposition))
+ {
+ tileentity = this.player.level.getBlockEntity(blockposition);
+ }
+ // Paper end
- if (tileentity != null) {
- tileentity.saveToItem(itemstack);
+ if (tileentity != null)
+ {
+ tileentity.saveToItem(itemstack);
+ }
}
+ // Scissors end
}
}