47 lines
3.3 KiB
Diff
47 lines
3.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Luna <lunahatesgogle@gmail.com>
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Date: Tue, 4 Jul 2023 18:49:34 -0300
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Subject: [PATCH] Fix packet-related lag exploits
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diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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index b69f7c74fe4e2ec6280ebee27f8b8fd0ec8ac361..1350b224b7321fe1aac3d3cf5ff1f7a089da53cc 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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@@ -870,7 +870,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
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this.player.sendSystemMessage(Component.translatable("advMode.notEnabled"));
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} else if (!this.player.canUseGameMasterBlocks() && (!this.player.isCreative() || !this.player.getBukkitEntity().hasPermission("minecraft.commandblock"))) { // Paper - command block permission
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this.player.sendSystemMessage(Component.translatable("advMode.notAllowed"));
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- } else {
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+ } else if (this.player.level().isLoadedAndInBounds(packet.getPos())) { // Scissors
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BaseCommandBlock commandblocklistenerabstract = null;
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CommandBlockEntity tileentitycommand = null;
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BlockPos blockposition = packet.getPos();
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@@ -1039,7 +1039,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
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@Override
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public void handleSetStructureBlock(ServerboundSetStructureBlockPacket packet) {
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PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
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- if (this.player.canUseGameMasterBlocks()) {
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+ if (this.player.canUseGameMasterBlocks() && this.player.level().isLoadedAndInBounds(packet.getPos())) { // Scissors
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BlockPos blockposition = packet.getPos();
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BlockState iblockdata = this.player.level().getBlockState(blockposition);
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BlockEntity tileentity = this.player.level().getBlockEntity(blockposition);
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@@ -1097,7 +1097,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
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@Override
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public void handleSetJigsawBlock(ServerboundSetJigsawBlockPacket packet) {
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PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
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- if (this.player.canUseGameMasterBlocks()) {
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+ if (this.player.canUseGameMasterBlocks() && this.player.level().isLoadedAndInBounds(packet.getPos())) { // Scissors
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BlockPos blockposition = packet.getPos();
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BlockState iblockdata = this.player.level().getBlockState(blockposition);
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BlockEntity tileentity = this.player.level().getBlockEntity(blockposition);
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@@ -1122,7 +1122,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
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@Override
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public void handleJigsawGenerate(ServerboundJigsawGeneratePacket packet) {
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PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
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- if (this.player.canUseGameMasterBlocks()) {
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+ if (this.player.canUseGameMasterBlocks() && this.player.level().isLoadedAndInBounds(packet.getPos())) { // Scissors
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BlockPos blockposition = packet.getPos();
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BlockEntity tileentity = this.player.level().getBlockEntity(blockposition);
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