ViaVersion/bungee/src/main/java/com/viaversion/viaversion/bungee/handlers/BungeeChannelInitializer.java

70 lines
2.9 KiB
Java

/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2016-2024 ViaVersion and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.viaversion.viaversion.bungee.handlers;
import com.viaversion.viaversion.api.Via;
import com.viaversion.viaversion.api.connection.UserConnection;
import com.viaversion.viaversion.connection.UserConnectionImpl;
import com.viaversion.viaversion.protocol.ProtocolPipelineImpl;
import io.netty.channel.Channel;
import io.netty.channel.ChannelInitializer;
import java.lang.reflect.Method;
import java.util.logging.Level;
public class BungeeChannelInitializer extends ChannelInitializer<Channel> {
private final ChannelInitializer<Channel> original;
private Method method;
public BungeeChannelInitializer(ChannelInitializer<Channel> oldInit) {
this.original = oldInit;
try {
this.method = ChannelInitializer.class.getDeclaredMethod("initChannel", Channel.class);
this.method.setAccessible(true);
} catch (NoSuchMethodException e) {
Via.getPlatform().getLogger().log(Level.WARNING, "Failed to get initChannel method", e);
}
}
@Override
protected void initChannel(Channel socketChannel) throws Exception {
if (!socketChannel.isActive()) {
return;
}
UserConnection info = new UserConnectionImpl(socketChannel);
// init protocol
new ProtocolPipelineImpl(info);
// Add originals
this.method.invoke(this.original, socketChannel);
if (!socketChannel.isActive()) return; // Don't inject if inactive
if (socketChannel.pipeline().get("packet-encoder") == null) return; // Don't inject if no packet-encoder
if (socketChannel.pipeline().get("packet-decoder") == null) return; // Don't inject if no packet-decoder
// Add our transformers
BungeeEncodeHandler encoder = new BungeeEncodeHandler(info);
BungeeDecodeHandler decoder = new BungeeDecodeHandler(info);
socketChannel.pipeline().addBefore("packet-encoder", "via-encoder", encoder);
socketChannel.pipeline().addBefore("packet-decoder", "via-decoder", decoder);
}
public ChannelInitializer<Channel> getOriginal() {
return original;
}
}