173 lines
7.6 KiB
Java
173 lines
7.6 KiB
Java
/*
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* Copyright (c) 2013-present RedisBungee contributors
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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*
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* http://www.eclipse.org/legal/epl-v10.html
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*/
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package com.imaginarycode.minecraft.redisbungee;
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import com.google.common.base.Joiner;
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import com.google.common.collect.HashMultimap;
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import com.google.common.collect.Multimap;
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import com.google.common.io.ByteArrayDataInput;
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import com.google.common.io.ByteArrayDataOutput;
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import com.google.common.io.ByteStreams;
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import com.imaginarycode.minecraft.redisbungee.api.RedisBungeePlugin;
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import com.velocitypowered.api.event.PostOrder;
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import com.velocitypowered.api.event.Subscribe;
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import com.velocitypowered.api.event.connection.PluginMessageEvent;
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import com.velocitypowered.api.event.player.PlayerChooseInitialServerEvent;
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import com.velocitypowered.api.event.proxy.ProxyPingEvent;
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import com.velocitypowered.api.proxy.Player;
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import com.velocitypowered.api.proxy.ServerConnection;
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import com.velocitypowered.api.proxy.server.RegisteredServer;
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import com.velocitypowered.api.proxy.server.ServerPing;
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import net.kyori.adventure.text.Component;
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import java.util.*;
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import java.util.stream.Collectors;
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import static com.imaginarycode.minecraft.redisbungee.api.util.serialize.MultiMapSerialization.serializeMultimap;
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import static com.imaginarycode.minecraft.redisbungee.api.util.serialize.MultiMapSerialization.serializeMultiset;
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public class RedisBungeeListener {
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private final RedisBungeePlugin<Player> plugin;
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public RedisBungeeListener(RedisBungeePlugin<Player> plugin) {
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this.plugin = plugin;
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}
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@Subscribe(order = PostOrder.LAST) // some plugins changes it online players so we need to be executed as last
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public void onPing(ProxyPingEvent event) {
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if (!plugin.configuration().handleMotd()) return;
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if (plugin.configuration().getExemptAddresses().contains(event.getConnection().getRemoteAddress().getAddress())) return;
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ServerPing.Builder ping = event.getPing().asBuilder();
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ping.onlinePlayers(plugin.proxyDataManager().totalNetworkPlayers());
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event.setPing(ping.build());
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}
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@Subscribe
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public void onPluginMessage(PluginMessageEvent event) {
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if (!(event.getSource() instanceof ServerConnection) || !RedisBungeeVelocityPlugin.IDENTIFIERS.contains(event.getIdentifier())) {
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return;
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}
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event.setResult(PluginMessageEvent.ForwardResult.handled());
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plugin.executeAsync(() -> {
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ByteArrayDataInput in = event.dataAsDataStream();
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String subchannel = in.readUTF();
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ByteArrayDataOutput out = ByteStreams.newDataOutput();
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String type;
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switch (subchannel) {
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case "PlayerList" -> {
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out.writeUTF("PlayerList");
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Set<UUID> original = Collections.emptySet();
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type = in.readUTF();
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if (type.equals("ALL")) {
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out.writeUTF("ALL");
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original = plugin.proxyDataManager().networkPlayers();
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} else {
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out.writeUTF(type);
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try {
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original = plugin.getAbstractRedisBungeeApi().getPlayersOnServer(type);
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} catch (IllegalArgumentException ignored) {
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}
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}
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Set<String> players = original.stream()
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.map(uuid -> plugin.getUuidTranslator().getNameFromUuid(uuid, false))
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.collect(Collectors.toSet());
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out.writeUTF(Joiner.on(',').join(players));
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}
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case "PlayerCount" -> {
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out.writeUTF("PlayerCount");
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type = in.readUTF();
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if (type.equals("ALL")) {
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out.writeUTF("ALL");
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out.writeInt(plugin.proxyDataManager().totalNetworkPlayers());
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} else {
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out.writeUTF(type);
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try {
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out.writeInt(plugin.getAbstractRedisBungeeApi().getPlayersOnServer(type).size());
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} catch (IllegalArgumentException e) {
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out.writeInt(0);
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}
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}
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}
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case "LastOnline" -> {
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String user = in.readUTF();
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out.writeUTF("LastOnline");
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out.writeUTF(user);
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out.writeLong(plugin.getAbstractRedisBungeeApi().getLastOnline(Objects.requireNonNull(plugin.getUuidTranslator().getTranslatedUuid(user, true))));
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}
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case "ServerPlayers" -> {
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String type1 = in.readUTF();
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out.writeUTF("ServerPlayers");
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Multimap<String, UUID> multimap = plugin.getAbstractRedisBungeeApi().getServerToPlayers();
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boolean includesUsers;
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switch (type1) {
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case "COUNT" -> includesUsers = false;
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case "PLAYERS" -> includesUsers = true;
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default -> {
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// TODO: Should I raise an error?
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return;
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}
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}
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out.writeUTF(type1);
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if (includesUsers) {
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Multimap<String, String> human = HashMultimap.create();
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for (Map.Entry<String, UUID> entry : multimap.entries()) {
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human.put(entry.getKey(), plugin.getUuidTranslator().getNameFromUuid(entry.getValue(), false));
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}
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serializeMultimap(human, true, out);
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} else {
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serializeMultiset(multimap.keys(), out);
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}
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}
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case "Proxy" -> {
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out.writeUTF("Proxy");
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out.writeUTF(plugin.configuration().getProxyId());
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}
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case "PlayerProxy" -> {
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String username = in.readUTF();
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out.writeUTF("PlayerProxy");
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out.writeUTF(username);
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out.writeUTF(plugin.getAbstractRedisBungeeApi().getProxy(Objects.requireNonNull(plugin.getUuidTranslator().getTranslatedUuid(username, true))));
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}
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default -> {
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return;
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}
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}
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((ServerConnection) event.getSource()).sendPluginMessage(event.getIdentifier(), out.toByteArray());
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});
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}
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@Subscribe
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public void onPlayerChooseInitialServerEvent(PlayerChooseInitialServerEvent event) {
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if (plugin.configuration().handleReconnectToLastServer()) {
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String lastServer = plugin.playerDataManager().getLastServerFor(event.getPlayer().getUniqueId());
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if (lastServer == null) return;
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// sending connect message, todo: IMPLEMENT once lang system is finalized
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Optional<RegisteredServer> optionalRegisteredServer = ((RedisBungeeVelocityPlugin) plugin).getProxy().getServer(lastServer);
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if (optionalRegisteredServer.isEmpty()) {
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// sending failure message, todo: IMPLEMENT once lang system is finalized
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return;
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}
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RegisteredServer server = optionalRegisteredServer.get();
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event.setInitialServer(server);
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}
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}
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}
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