at.yawk.accordion.minecraft.AccordionBungee.java Source code

Introduction

Here is the source code for at.yawk.accordion.minecraft.AccordionBungee.java

Source

/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

package at.yawk.accordion.minecraft;

import io.netty.buffer.ByteBuf;
import java.net.InetSocketAddress;
import java.util.concurrent.TimeUnit;
import net.md_5.bungee.api.event.PluginMessageEvent;
import net.md_5.bungee.api.event.ServerSwitchEvent;
import net.md_5.bungee.api.plugin.Listener;
import net.md_5.bungee.api.plugin.Plugin;
import net.md_5.bungee.event.EventHandler;

/**
 * @author yawkat
 */
public class AccordionBungee {
    private AccordionBungee() {
    }

    public static AccordionApi createApi(Plugin plugin) {
        InetSocketAddress host = plugin.getProxy().getConfig().getListeners().stream().findAny().get().getHost();
        AccordionApi api = new AccordionApi().mcPort(host.getPort()).logger(plugin.getLogger()).listen(true)
                .tier(AccordionApi.DEFAULT_TIER_BUNGEE);

        // hack to get bungee thread group
        Object lock = new Object();
        plugin.getProxy().getScheduler().runAsync(plugin, () -> {
            api.threadGroup(Thread.currentThread().getThreadGroup());
            synchronized (lock) {
                lock.notifyAll();
            }
        });
        //noinspection SynchronizationOnLocalVariableOrMethodParameter
        synchronized (lock) {
            try {
                lock.wait();
            } catch (InterruptedException ignored) {
            }
        }

        // TODO reliable autostart
        plugin.getProxy().getScheduler().schedule(plugin, api::tryAutoStart, 3, TimeUnit.SECONDS);

        plugin.getProxy().getPluginManager().registerListener(plugin, new Listener() {
            @EventHandler
            public void onPluginMessage(PluginMessageEvent event) {
                // filter malicious peer packets from client
                if (event.getTag().equals(AccordionApi.PEER_DISCOVERY_PLUGIN_CHANNEL)) {
                    event.setCancelled(true);
                }
            }

            @EventHandler
            public void onSwitch(ServerSwitchEvent event) {
                if (!api.isAutomaticDiscovery()) {
                    return;
                }

                // send our known nodes to the server
                ByteBuf enc = api.getLocalNode().getKnownNodesEncoded();
                byte[] array = new byte[enc.readableBytes()];
                enc.readBytes(array);

                event.getPlayer().getServer().sendData(AccordionApi.PEER_DISCOVERY_PLUGIN_CHANNEL, array);
            }
        });

        return api;
    }
}