/
PacketLinkServer.java
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/
PacketLinkServer.java
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package net.ME1312.SubServers.Bungee.Network.Packet;
import net.ME1312.SubData.Server.DataClient;
import net.ME1312.SubData.Server.Protocol.Initial.InitialPacket;
import net.ME1312.SubData.Server.SubDataClient;
import net.ME1312.SubServers.Bungee.Event.SubStartedEvent;
import net.ME1312.SubServers.Bungee.Host.Server;
import net.ME1312.SubServers.Bungee.Host.ServerContainer;
import net.ME1312.SubServers.Bungee.Host.SubServer;
import net.ME1312.Galaxi.Library.Map.ObjectMap;
import net.ME1312.Galaxi.Library.Util;
import net.ME1312.SubData.Server.Protocol.PacketObjectIn;
import net.ME1312.SubData.Server.Protocol.PacketObjectOut;
import net.ME1312.SubServers.Bungee.Host.SubServerContainer;
import net.ME1312.SubServers.Bungee.Library.Compatibility.Logger;
import net.ME1312.SubServers.Bungee.SubPlugin;
import net.md_5.bungee.api.ProxyServer;
import java.net.InetSocketAddress;
import java.util.HashMap;
import java.util.Map;
/**
* Link Server Packet
*/
public class PacketLinkServer implements InitialPacket, PacketObjectIn<Integer>, PacketObjectOut<Integer> {
private SubPlugin plugin;
private int response;
private String message;
private String name;
private static class ServerLinkException extends IllegalStateException {
public ServerLinkException(String message) {
super(message);
}
}
/**
* New PacketLinkServer (In)
*
* @param plugin SubPlugin
*/
public PacketLinkServer(SubPlugin plugin) {
if (Util.isNull(plugin)) throw new NullPointerException();
this.plugin = plugin;
}
/**
* New PacketLinkServer (Out)
*
* @param name The name that was determined
* @param response Response ID
* @param message Message
*/
public PacketLinkServer(String name, int response, String message) {
if (Util.isNull(response)) throw new NullPointerException();
this.name = name;
this.response = response;
this.message = message;
}
@Override
public ObjectMap<Integer> send(SubDataClient client) {
ObjectMap<Integer> data = new ObjectMap<Integer>();
data.set(0x0000, name);
data.set(0x0001, response);
if (message != null) data.set(0x0002, message);
return data;
}
@Override
public void receive(SubDataClient client, ObjectMap<Integer> data) {
String name = (data.contains(0x0000))?data.getRawString(0x0000):null;
Integer port = (data.contains(0x0001))?data.getInt(0x0001):null;
Integer channel = data.getInt(0x0002);
try {
Map<String, Server> servers = plugin.api.getServers();
Server server;
if (name != null && servers.keySet().contains(name.toLowerCase())) {
link(client, servers.get(name.toLowerCase()), channel);
} else if (port != null) {
if ((server = search(new InetSocketAddress(client.getAddress().getAddress(), port))) != null) {
link(client, server, channel);
} else {
throw new ServerLinkException("There is no server with address: " + client.getAddress().getAddress().getHostAddress() + ':' + port);
}
} else {
throw new ServerLinkException("Not enough arguments");
}
} catch (ServerLinkException e) {
if (name != null) {
client.sendPacket(new PacketLinkServer(null, 3, "There is no server with name: " + name));
} else {
client.sendPacket(new PacketLinkServer(null, 2, e.getMessage()));
}
} catch (Throwable e) {
client.sendPacket(new PacketLinkServer(null, 1, null));
e.printStackTrace();
}
}
private void link(SubDataClient client, Server server, int channel) throws Throwable {
HashMap<Integer, SubDataClient> subdata = Util.getDespiteException(() -> Util.reflect(ServerContainer.class.getDeclaredField("subdata"), server), null);
if (!subdata.keySet().contains(channel) || (channel == 0 && subdata.get(0) == null)) {
server.setSubData(client, channel);
Logger.get("SubData").info(client.getAddress().toString() + " has been defined as " + ((server instanceof SubServer) ? "SubServer" : "Server") + ": " + server.getName() + ((channel > 0)?" (Sub-"+channel+")":""));
if (server instanceof SubServer && !((SubServer) server).isRunning()) {
Logger.get("SubServers").info("Sending shutdown signal to rogue SubServer: " + server.getName());
client.sendPacket(new PacketOutExReset("Rogue SubServer Detected"));
} else {
if (server instanceof SubServer && !Util.getDespiteException(() -> Util.reflect(SubServerContainer.class.getDeclaredField("started"), server), true)) {
Util.isException(() -> Util.reflect(SubServerContainer.class.getDeclaredField("started"), server, true));
SubStartedEvent event = new SubStartedEvent((SubServer) server);
ProxyServer.getInstance().getPluginManager().callEvent(event);
}
client.sendPacket(new PacketLinkServer(server.getName(), 0, null));
}
setReady(client, true);
} else {
client.sendPacket(new PacketLinkServer(null, 4, "Server already linked"));
}
}
private Server search(InetSocketAddress address) throws ServerLinkException {
Server server = null;
for (Server s : plugin.api.getServers().values()) {
if (s.getAddress().equals(address)) {
if (server != null) throw new ServerLinkException("Multiple servers match address: " + address.getAddress().getHostAddress() + ':' + address.getPort());
server = s;
}
}
return server;
}
@Override
public int version() {
return 0x0001;
}
}