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Scissors
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Fix container click patch (#47)

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Allink 2022-07-12 17:19:31 +01:00 committed by GitHub
parent 1db95f6694
commit 183f609960
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 21 additions and 14 deletions
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35
patches/server/0033-Prevent-invalid-container-events.patch
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@ -5,7 +5,7 @@ Subject: [PATCH] Prevent invalid container events
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 7c6fceb410f6b8683795a0a967dfe3305a689e26..5a8d4421c2de0680a3f4880451badcf5c4b46597 100644
index 7c6fceb410f6b8683795a0a967dfe3305a689e26..1851a9eaf0ea56434d9b96c7c829ee5411f666fe 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -31,6 +31,8 @@ import java.util.function.UnaryOperator;
@ -17,23 +17,30 @@ index 7c6fceb410f6b8683795a0a967dfe3305a689e26..5a8d4421c2de0680a3f4880451badcf5
import net.minecraft.ChatFormatting;
import net.minecraft.CrashReport;
import net.minecraft.CrashReportCategory;
@@ -2840,6 +2842,19 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
@@ -2840,6 +2842,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
public void handleContainerClick(ServerboundContainerClickPacket packet) {
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());
if (this.player.isImmobile()) return; // CraftBukkit
+
+ // Scissors start - Do not call events when the slot/button number is invalid
+ final int sentSlotNum = packet.getSlotNum();
+ if(Mth.clamp(sentSlotNum, 0, 45) != sentSlotNum)
+ {
+ this.getCraftPlayer().kick(
+ net.kyori.adventure.text.Component.text("Invalid container click slot (Hacking?)")
+ .color(NamedTextColor.RED)
+ );
+ return;
+ }
+ // Scissors end
+
this.player.resetLastActionTime();
if (this.player.containerMenu.containerId == packet.getContainerId() && this.player.containerMenu.stillValid(this.player)) { // CraftBukkit
boolean cancelled = this.player.isSpectator(); // CraftBukkit - see below if
@@ -2859,6 +2862,18 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
return;
}
+ // Scissors start - Do not call events when the slot/button number is invalid
+ final int sentSlotNum = packet.getSlotNum();
+ if((Mth.clamp(sentSlotNum, -1, this.player.containerMenu.slots.size() - 1) != sentSlotNum) && sentSlotNum != -999)
+ {
+ this.getCraftPlayer().kick(
+ net.kyori.adventure.text.Component.text("Invalid container click slot (Hacking?)")
+ .color(NamedTextColor.RED)
+ );
+ return;
+ }
+ // Scissors end
+
InventoryView inventory = this.player.containerMenu.getBukkitView();
SlotType type = inventory.getSlotType(packet.getSlotNum());