70 lines
3.0 KiB
Java
70 lines
3.0 KiB
Java
/*
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* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
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* Copyright (C) 2016-2021 ViaVersion and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.viaversion.viaversion.bukkit.handlers;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelInitializer;
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import io.netty.channel.socket.SocketChannel;
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import io.netty.handler.codec.ByteToMessageDecoder;
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import io.netty.handler.codec.MessageToByteEncoder;
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import com.viaversion.viaversion.api.connection.UserConnection;
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import com.viaversion.viaversion.api.protocol.ProtocolPipeline;
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import com.viaversion.viaversion.bukkit.classgenerator.ClassGenerator;
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import com.viaversion.viaversion.bukkit.classgenerator.HandlerConstructor;
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import java.lang.reflect.Method;
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public class BukkitChannelInitializer extends ChannelInitializer<SocketChannel> {
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private final ChannelInitializer<SocketChannel> original;
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private Method method;
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public BukkitChannelInitializer(ChannelInitializer<SocketChannel> oldInit) {
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this.original = oldInit;
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try {
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this.method = ChannelInitializer.class.getDeclaredMethod("initChannel", Channel.class);
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this.method.setAccessible(true);
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} catch (NoSuchMethodException e) {
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e.printStackTrace();
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}
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}
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public ChannelInitializer<SocketChannel> getOriginal() {
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return original;
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}
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@Override
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protected void initChannel(SocketChannel socketChannel) throws Exception {
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UserConnection info = new UserConnection(socketChannel);
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// init protocol
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new ProtocolPipeline(info);
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// Add originals
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this.method.invoke(this.original, socketChannel);
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HandlerConstructor constructor = ClassGenerator.getConstructor();
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// Add our transformers
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MessageToByteEncoder encoder = constructor.newEncodeHandler(info, (MessageToByteEncoder) socketChannel.pipeline().get("encoder"));
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ByteToMessageDecoder decoder = constructor.newDecodeHandler(info, (ByteToMessageDecoder) socketChannel.pipeline().get("decoder"));
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BukkitPacketHandler chunkHandler = new BukkitPacketHandler(info);
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socketChannel.pipeline().replace("encoder", "encoder", encoder);
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socketChannel.pipeline().replace("decoder", "decoder", decoder);
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socketChannel.pipeline().addAfter("packet_handler", "viaversion_packet_handler", chunkHandler);
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}
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}
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