76 lines
3.8 KiB
Java
76 lines
3.8 KiB
Java
/*
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* This file is part of ViaProxy - https://github.com/RaphiMC/ViaProxy
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* Copyright (C) 2023 RK_01/RaphiMC 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 net.raphimc.viaproxy.proxy.proxy2server;
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import com.viaversion.viaversion.api.connection.UserConnection;
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import com.viaversion.viaversion.connection.UserConnectionImpl;
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import com.viaversion.viaversion.protocol.ProtocolPipelineImpl;
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import io.netty.channel.ChannelHandler;
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import io.netty.channel.socket.SocketChannel;
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import net.raphimc.netminecraft.constants.MCPipeline;
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import net.raphimc.netminecraft.netty.connection.MinecraftChannelInitializer;
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import net.raphimc.netminecraft.packet.registry.PacketRegistryUtil;
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import net.raphimc.vialegacy.netty.PreNettyDecoder;
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import net.raphimc.vialegacy.netty.PreNettyEncoder;
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import net.raphimc.vialegacy.protocols.release.protocol1_7_2_5to1_6_4.baseprotocols.PreNettyBaseProtocol;
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import net.raphimc.viaprotocolhack.netty.ViaEncodeHandler;
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import net.raphimc.viaprotocolhack.netty.ViaPipeline;
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import net.raphimc.viaprotocolhack.util.VersionEnum;
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import net.raphimc.viaproxy.plugins.PluginManager;
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import net.raphimc.viaproxy.plugins.events.Proxy2ServerChannelInitializeEvent;
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import net.raphimc.viaproxy.plugins.events.types.ITyped;
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import net.raphimc.viaproxy.protocolhack.impl.ViaProxyViaDecodeHandler;
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import net.raphimc.viaproxy.proxy.ProxyConnection;
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import java.util.function.Supplier;
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public class Proxy2ServerChannelInitializer extends MinecraftChannelInitializer {
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public Proxy2ServerChannelInitializer(final Supplier<ChannelHandler> handlerSupplier) {
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super(handlerSupplier);
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}
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@Override
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protected void initChannel(SocketChannel socketChannel) {
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if (PluginManager.EVENT_MANAGER.call(new Proxy2ServerChannelInitializeEvent(ITyped.Type.PRE, socketChannel)).isCancelled()) {
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socketChannel.close();
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return;
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}
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final UserConnection user = new UserConnectionImpl(socketChannel, true);
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new ProtocolPipelineImpl(user);
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ProxyConnection.fromChannel(socketChannel).setUserConnection(user);
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super.initChannel(socketChannel);
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socketChannel.attr(MCPipeline.PACKET_REGISTRY_ATTRIBUTE_KEY).set(PacketRegistryUtil.getHandshakeRegistry(true));
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socketChannel.pipeline().addBefore(MCPipeline.PACKET_CODEC_HANDLER_NAME, ViaPipeline.HANDLER_ENCODER_NAME, new ViaEncodeHandler(user));
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socketChannel.pipeline().addBefore(MCPipeline.PACKET_CODEC_HANDLER_NAME, ViaPipeline.HANDLER_DECODER_NAME, new ViaProxyViaDecodeHandler(user));
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if (ProxyConnection.fromChannel(socketChannel).getServerVersion().isOlderThanOrEqualTo(VersionEnum.r1_6_4)) {
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user.getProtocolInfo().getPipeline().add(PreNettyBaseProtocol.INSTANCE);
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socketChannel.pipeline().addBefore(MCPipeline.SIZER_HANDLER_NAME, ViaPipeline.HANDLER_PRE_NETTY_ENCODER_NAME, new PreNettyEncoder(user));
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socketChannel.pipeline().addBefore(MCPipeline.SIZER_HANDLER_NAME, ViaPipeline.HANDLER_PRE_NETTY_DECODER_NAME, new PreNettyDecoder(user));
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}
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if (PluginManager.EVENT_MANAGER.call(new Proxy2ServerChannelInitializeEvent(ITyped.Type.POST, socketChannel)).isCancelled()) {
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socketChannel.close();
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}
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}
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}
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