Scissors/patches/server/0041-Add-more-fallback-code-for-chunk-bans.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Telesphoreo <me@telesphoreo.me>
Date: Sun, 16 Jun 2024 15:38:49 -0500
Subject: [PATCH] Add more fallback code for chunk bans


diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundBlockEntityDataPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundBlockEntityDataPacket.java
index 5d3e739d28d394ed59fe0003245cc55ac62e6087..e721aa95e0e11455df2fb337978cefdd1bbcf018 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundBlockEntityDataPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundBlockEntityDataPacket.java
@@ -1,6 +1,8 @@
 package net.minecraft.network.protocol.game;
 
 import java.util.function.BiFunction;
+
+import me.totalfreedom.scissors.NbtUtility;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.RegistryAccess;
 import net.minecraft.core.registries.Registries;
@@ -36,6 +38,23 @@ public class ClientboundBlockEntityDataPacket implements Packet<ClientGamePacket
         return create(blockEntity, BlockEntity::getUpdateTag);
     }
 
+    // Scissors start - Handle large packets disconnecting client
+    @Override
+    public boolean hasLargePacketFallback() {
+        return true;
+    }
+
+    @Override
+    public boolean packetTooLarge(net.minecraft.network.Connection manager) {
+        if (NbtUtility.isTooLarge(this.tag))
+        {
+            this.tag.getAllKeys().forEach(tag::remove);
+        }
+        manager.send(new ClientboundBlockEntityDataPacket(pos, this.type, this.tag));
+        return true;
+    }
+    // Scissors end - Handle large packets disconnecting client
+
     public ClientboundBlockEntityDataPacket(BlockPos pos, BlockEntityType<?> blockEntityType, CompoundTag nbt) {
         this.pos = pos;
         this.type = blockEntityType;
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundContainerSetSlotPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundContainerSetSlotPacket.java
index 63f6a2437da9363786b55af0a7cbc5373232d35b..38e8e3e58821da896851a42d6088bc70857ae7e1 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundContainerSetSlotPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundContainerSetSlotPacket.java
@@ -43,6 +43,19 @@ public class ClientboundContainerSetSlotPacket implements Packet<ClientGamePacke
         return GamePacketTypes.CLIENTBOUND_CONTAINER_SET_SLOT;
     }
 
+    // Scissors start - Handle large packets disconnecting client
+    @Override
+    public boolean hasLargePacketFallback() {
+        return true;
+    }
+
+    @Override
+    public boolean packetTooLarge(net.minecraft.network.Connection manager) {
+        manager.send(new ClientboundContainerSetSlotPacket(this.containerId, this.stateId, this.slot, ItemStack.EMPTY));
+        return true;
+    }
+    // Scissors end - Handle large packets disconnecting client
+
     @Override
     public void handle(ClientGamePacketListener listener) {
         listener.handleContainerSetSlot(this);
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundMapItemDataPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundMapItemDataPacket.java
index 466dc69d8c06766733a6164fa5c911e902493a23..84f05afd07c23ffd34492b4c45344ccbfb66c2a9 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundMapItemDataPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundMapItemDataPacket.java
@@ -36,6 +36,19 @@ public record ClientboundMapItemDataPacket(
         this(mapId, scale, locked, decorations != null ? Optional.of(List.copyOf(decorations)) : Optional.empty(), Optional.ofNullable(updateData));
     }
 
+    // Scissors start - Handle large packets disconnecting client
+    @Override
+    public boolean hasLargePacketFallback() {
+        return true;
+    }
+
+    @Override
+    public boolean packetTooLarge(net.minecraft.network.Connection manager) {
+        manager.send(new ClientboundMapItemDataPacket(mapId, scale, locked, Optional.empty(), Optional.empty()));
+        return true;
+    }
+    // Scissors end - Handle large packets disconnecting client
+
     @Override
     public PacketType<ClientboundMapItemDataPacket> type() {
         return GamePacketTypes.CLIENTBOUND_MAP_ITEM_DATA;
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundPlayerChatPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundPlayerChatPacket.java
index 37ab438ab37b9235666ae69376509bdde7722d87..b6cdadfbfe8756a3fd10b7a2d93da31701bc44e1 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundPlayerChatPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundPlayerChatPacket.java
@@ -2,6 +2,8 @@ package net.minecraft.network.protocol.game;
 
 import java.util.UUID;
 import javax.annotation.Nullable;
+
+import net.minecraft.ChatFormatting;
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.network.RegistryFriendlyByteBuf;
 import net.minecraft.network.chat.ChatType;
@@ -39,6 +41,19 @@ public record ClientboundPlayerChatPacket(
         );
     }
 
+    // Scissors start - Handle large packets disconnecting client
+    @Override
+    public boolean hasLargePacketFallback() {
+        return true;
+    }
+
+    @Override
+    public boolean packetTooLarge(net.minecraft.network.Connection manager) {
+        manager.send(new ClientboundPlayerChatPacket(sender, index, signature, body, Component.empty().append("** Message too large **").withStyle(ChatFormatting.RED), filterMask, chatType));
+        return true;
+    }
+    // Scissors end - Handle large packets disconnecting client
+
     private void write(RegistryFriendlyByteBuf buf) {
         buf.writeUUID(this.sender);
         buf.writeVarInt(this.index);
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundSetEquipmentPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundSetEquipmentPacket.java
index 3945ca04ede578121b370592482ac917f2d4cf96..f05678ab6fc598da0416c6e0c68bc30a1beef139 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundSetEquipmentPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundSetEquipmentPacket.java
@@ -2,6 +2,8 @@ package net.minecraft.network.protocol.game;
 
 import com.google.common.collect.Lists;
 import com.mojang.datafixers.util.Pair;
+
+import java.util.Collections;
 import java.util.List;
 import net.minecraft.network.RegistryFriendlyByteBuf;
 import net.minecraft.network.codec.StreamCodec;
@@ -44,6 +46,19 @@ public class ClientboundSetEquipmentPacket implements Packet<ClientGamePacketLis
         } while ((i & -128) != 0);
     }
 
+    // Scissors start - Handle large packets disconnecting client
+    @Override
+    public boolean hasLargePacketFallback() {
+        return true;
+    }
+
+    @Override
+    public boolean packetTooLarge(net.minecraft.network.Connection manager) {
+        manager.send(new ClientboundSetEquipmentPacket(entity, Collections.emptyList()));
+        return true;
+    }
+    // Scissors end - Handle large packets disconnecting client
+
     private void write(RegistryFriendlyByteBuf buf) {
         buf.writeVarInt(this.entity);
         int i = this.slots.size();