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Patch 'sploits (1.18.2) (#34)
* Prevent invalid container events * Do not attempt to cast items to recipes
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patches/server/0035-Prevent-invalid-container-events.patch
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37
patches/server/0035-Prevent-invalid-container-events.patch
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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 02:44:05 +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 b0bd0412010320cc624535d6abffe417a135a4dc..e8157a809ed2b018dfd155e8bc712a8c73aa79e6 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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@@ -24,6 +24,8 @@ 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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@@ -2836,6 +2838,17 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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}
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if (packet.getClickType() != net.minecraft.world.inventory.ClickType.QUICK_CRAFT) {
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+ // Scissors start - Do not call events when the slot/button number is invalid
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+ if(packet.getSlotNum() > 45)
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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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if (click == ClickType.NUMBER_KEY) {
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event = new InventoryClickEvent(inventory, type, packet.getSlotNum(), click, action, packet.getButtonNum());
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} else {
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@ -0,0 +1,24 @@
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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 02:45:15 +0100
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Subject: [PATCH] Do not attempt to cast items to recipes
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diff --git a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
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index 0f19ef250a2f82e49730cb58ea43ee6bf407455a..764b56c2d5cdf5a57fced106d196ef866f70e885 100644
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--- a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
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+++ b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
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@@ -634,6 +634,13 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
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Entry<ResourceLocation> entry = (Entry) objectiterator.next();
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worldserver.getRecipeManager().byKey((ResourceLocation) entry.getKey()).ifPresent((irecipe) -> {
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+ // Scissors start - Do not attempt to cast items to recipes
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+ if (!(irecipe instanceof AbstractCookingRecipe))
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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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list.add(irecipe);
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AbstractFurnaceBlockEntity.createExperience(worldserver, vec3d, entry.getIntValue(), ((AbstractCookingRecipe) irecipe).getExperience(), blockposition, entityplayer, itemstack, amount); // CraftBukkit
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});
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