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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| plugins { | ||
| id "java" | ||
| id "io.papermc.paperweight.userdev" version "${userdevVer}" | ||
| } | ||
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|
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| dependencies { | ||
| compileOnly project(path: ":shared") | ||
|
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| paperweightDevelopmentBundle "io.papermc.paper:dev-bundle:1.20.3-R0.1-SNAPSHOT" | ||
| } |
90 changes: 90 additions & 0 deletions
90
...0.3/src/main/java/com/github/kaspiandev/antipopup/nms/v1_20_3/PlayerInjector_v1_20_3.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| package com.github.kaspiandev.antipopup.nms.v1_20_3; | ||
|
|
||
| import com.github.kaspiandev.antipopup.nms.AbstractInjector; | ||
| import io.netty.channel.*; | ||
| import net.minecraft.network.Connection; | ||
| import net.minecraft.network.chat.ChatType; | ||
| import net.minecraft.network.chat.Component; | ||
| import net.minecraft.network.protocol.game.ClientboundPlayerChatPacket; | ||
| import net.minecraft.network.protocol.game.ClientboundSystemChatPacket; | ||
| import net.minecraft.server.network.ServerCommonPacketListenerImpl; | ||
| import net.minecraft.server.network.ServerGamePacketListenerImpl; | ||
| import org.bukkit.Bukkit; | ||
| import org.bukkit.craftbukkit.v1_20_R3.CraftServer; | ||
| import org.bukkit.craftbukkit.v1_20_R3.entity.CraftPlayer; | ||
| import org.bukkit.entity.Player; | ||
|
|
||
| import java.lang.reflect.Field; | ||
| import java.lang.reflect.InaccessibleObjectException; | ||
| import java.util.Optional; | ||
|
|
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| @SuppressWarnings("unused") | ||
| public class PlayerInjector_v1_20_3 implements AbstractInjector { | ||
|
|
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| private static final String HANDLER_NAME = "antipopup_handler"; | ||
| private static Field connectionField; | ||
|
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| static { | ||
| try { | ||
| for (Field field : ServerCommonPacketListenerImpl.class.getDeclaredFields()) { | ||
| if (field.getType().equals(Connection.class)) { | ||
| field.setAccessible(true); | ||
| connectionField = field; | ||
| break; | ||
| } | ||
| } | ||
| } catch (SecurityException | InaccessibleObjectException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
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| public void inject(Player player) { | ||
| ChannelDuplexHandler duplexHandler = new ChannelDuplexHandler() { | ||
| @Override | ||
| public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception { | ||
| if (packet instanceof ClientboundPlayerChatPacket chatPacket) { | ||
| Component content = chatPacket.unsignedContent(); | ||
| if (content == null) { | ||
| content = Component.literal(chatPacket.body().content()); | ||
| } | ||
| Optional<ChatType.Bound> chatType = chatPacket.chatType().resolve( | ||
| ((CraftServer) Bukkit.getServer()).getServer().registryAccess()); | ||
|
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| ((CraftPlayer) player).getHandle().connection.send( | ||
| new ClientboundSystemChatPacket(chatType.orElseThrow().decorate(content), false)); | ||
| return; | ||
| } | ||
| super.write(ctx, packet, promise); | ||
| } | ||
| }; | ||
|
|
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| ServerGamePacketListenerImpl listener = ((CraftPlayer) player).getHandle().connection; | ||
| Channel channel = getConnection(listener).channel; | ||
| ChannelPipeline pipeline = channel.pipeline(); | ||
|
|
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| if (pipeline.get(HANDLER_NAME) != null) { | ||
| pipeline.remove(HANDLER_NAME); | ||
| } | ||
|
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| channel.eventLoop().submit(() -> { | ||
| channel.pipeline().addBefore("packet_handler", HANDLER_NAME, duplexHandler); | ||
| }); | ||
| } | ||
|
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| public void uninject(Player player) { | ||
| ServerGamePacketListenerImpl listener = ((CraftPlayer) player).getHandle().connection; | ||
| Channel channel = getConnection(listener).channel; | ||
| channel.eventLoop().submit(() -> { | ||
| channel.pipeline().remove(HANDLER_NAME); | ||
| }); | ||
| } | ||
|
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| private Connection getConnection(ServerGamePacketListenerImpl listener) { | ||
| try { | ||
| return (Connection) connectionField.get(listener); | ||
| } catch (IllegalAccessException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| } |