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Create 0022-Validate-coordinates-before-attempting-to-get-block-.patch

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Telesphoreo 2022-06-11 23:09:00 -05:00
parent cf944e7f5a
commit b9c09dbfcb
1 changed files with 60 additions and 0 deletions
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patches/server/0022-Validate-coordinates-before-attempting-to-get-block-.patch Normal file
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@ -0,0 +1,60 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Telesphoreo <me@telesphoreo.me>
Date: Sat, 11 Jun 2022 23:05:12 -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 630a762b71861bfe21c47a11d4fe05e1a3b7d339..f13b4e880c179e4f6e76cc0a2655b9f148a08290 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1837,6 +1837,18 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
}
// 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());
@@ -3182,15 +3194,22 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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);
// 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
+ // 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
}
boolean flag1 = packet.getSlotNum() >= 1 && packet.getSlotNum() <= 45;