mirror of
https://github.com/AtlasMediaGroup/Scissors.git
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40 lines
2.0 KiB
Diff
40 lines
2.0 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Allink <arclicious@vivaldi.net>
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Date: Sun, 10 Jul 2022 02:55:01 +0100
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Subject: [PATCH] Prevent invalid container events
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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 7c6fceb410f6b8683795a0a967dfe3305a689e26..5a8d4421c2de0680a3f4880451badcf5c4b46597 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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@@ -31,6 +31,8 @@ import java.util.function.UnaryOperator;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import javax.annotation.Nullable;
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+
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+import net.kyori.adventure.text.format.NamedTextColor;
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import net.minecraft.ChatFormatting;
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import net.minecraft.CrashReport;
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import net.minecraft.CrashReportCategory;
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@@ -2840,6 +2842,19 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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public void handleContainerClick(ServerboundContainerClickPacket packet) {
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PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());
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if (this.player.isImmobile()) return; // CraftBukkit
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+
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+ // Scissors start - Do not call events when the slot/button number is invalid
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+ final int sentSlotNum = packet.getSlotNum();
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+ if(Mth.clamp(sentSlotNum, 0, 45) != sentSlotNum)
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+ {
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+ this.getCraftPlayer().kick(
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+ net.kyori.adventure.text.Component.text("Invalid container click slot (Hacking?)")
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+ .color(NamedTextColor.RED)
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+ );
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+ return;
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+ }
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+ // Scissors end
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+
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this.player.resetLastActionTime();
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if (this.player.containerMenu.containerId == packet.getContainerId() && this.player.containerMenu.stillValid(this.player)) { // CraftBukkit
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boolean cancelled = this.player.isSpectator(); // CraftBukkit - see below if
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