498 lines
22 KiB
Java
498 lines
22 KiB
Java
package net.ME1312.SubServers.Sync.Network;
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import com.google.gson.Gson;
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import com.google.gson.JsonParseException;
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import net.ME1312.SubServers.Sync.Event.SubNetworkConnectEvent;
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import net.ME1312.SubServers.Sync.Event.SubNetworkDisconnectEvent;
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import net.ME1312.SubServers.Sync.Library.Config.YAMLSection;
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import net.ME1312.SubServers.Sync.Library.Exception.IllegalPacketException;
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import net.ME1312.SubServers.Sync.Library.NamedContainer;
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import net.ME1312.SubServers.Sync.Library.Util;
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import net.ME1312.SubServers.Sync.Library.Version.Version;
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import net.ME1312.SubServers.Sync.Network.API.Server;
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import net.ME1312.SubServers.Sync.Network.Encryption.AES;
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import net.ME1312.SubServers.Sync.Network.Packet.*;
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import net.ME1312.SubServers.Sync.SubPlugin;
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import net.md_5.bungee.api.config.ListenerInfo;
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import net.md_5.bungee.conf.Configuration;
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import org.msgpack.core.MessageInsufficientBufferException;
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import org.msgpack.core.MessagePack;
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import org.msgpack.core.MessagePacker;
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import org.msgpack.core.MessageUnpacker;
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import org.msgpack.value.Value;
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import org.yaml.snakeyaml.error.YAMLException;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.PrintWriter;
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import java.lang.reflect.Field;
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import java.lang.reflect.InvocationTargetException;
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import java.net.InetAddress;
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import java.net.Socket;
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import java.net.SocketException;
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import java.nio.charset.StandardCharsets;
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import java.util.*;
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import java.util.concurrent.TimeUnit;
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/**
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* SubData Direct Client Class
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*/
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public final class SubDataClient {
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private static HashMap<Class<? extends PacketOut>, NamedContainer<String, String>> pOut = new HashMap<Class<? extends PacketOut>, NamedContainer<String, String>>();
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private static HashMap<String, HashMap<String, List<PacketIn>>> pIn = new HashMap<String, HashMap<String, List<PacketIn>>>();
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private static HashMap<String, Cipher> ciphers = new HashMap<String, Cipher>();
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private static boolean defaults = false;
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private MessagePacker out;
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private NamedContainer<Boolean, Socket> socket;
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private String name = null;
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private Cipher cipher;
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private String password;
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private SubPlugin plugin;
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private LinkedList<NamedContainer<String, PacketOut>> queue;
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/**
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* SubServers Client Instance
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*
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* @param plugin SubPlugin
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* @param address Address
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* @param port Port
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* @param cipher Cipher
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* @throws IOException
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*/
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public SubDataClient(SubPlugin plugin, String name, InetAddress address, int port, Cipher cipher) throws IOException {
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if (Util.isNull(plugin, address, port)) throw new NullPointerException();
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socket = new NamedContainer<>(false, new Socket(address, port));
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this.plugin = plugin;
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this.name = (name == null || name.length() > 0)?name:null;
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this.out = MessagePack.newDefaultPacker(socket.get().getOutputStream());
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this.password = plugin.config.get().getSection("Settings").getSection("SubData").getRawString("Password");
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this.cipher = (cipher != null)?cipher:new Cipher() {
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@Override
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public String getName() {
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return "NONE";
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}
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@Override
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public Value encrypt(String key, YAMLSection data) {
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return data.msgPack();
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}
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@Override
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@SuppressWarnings("unchecked")
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public YAMLSection decrypt(String key, Value data) {
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return new YAMLSection(data.asMapValue());
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}
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};
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this.queue = new LinkedList<NamedContainer<String, PacketOut>>();
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if (!defaults) loadDefaults();
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loop();
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sendPacket(new NamedContainer<>(null, new PacketAuthorization(plugin, password)));
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}
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private void init() {
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plugin.subdata.sendPacket(new PacketDownloadLang(plugin));
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plugin.subdata.sendPacket(new PacketLinkProxy(plugin));
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plugin.subdata.sendPacket(new PacketDownloadPlatformInfo(platform -> plugin.api.getServers(servers -> {
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if (plugin.lastReload != platform.getSection("subservers").getLong("last-reload")) {
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System.out.println("SubServers > Resetting Server Data");
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plugin.servers.clear();
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plugin.lastReload = platform.getSection("subservers").getLong("last-reload");
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}
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try {
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LinkedList<ListenerInfo> listeners = new LinkedList<ListenerInfo>(plugin.getConfig().getListeners());
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for (int i = 0; i < platform.getSection("bungee").getSectionList("listeners").size(); i++) if (i < listeners.size()) {
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if (plugin.config.get().getSection("Sync", new YAMLSection()).getBoolean("Forced-Hosts", true)) Util.reflect(ListenerInfo.class.getDeclaredField("forcedHosts"), listeners.get(i), platform.getSection("bungee").getSectionList("listeners").get(i).getSection("forced-hosts").get());
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if (plugin.config.get().getSection("Sync", new YAMLSection()).getBoolean("Motd", false)) Util.reflect(ListenerInfo.class.getDeclaredField("motd"), listeners.get(i), platform.getSection("bungee").getSectionList("listeners").get(i).getRawString("motd"));
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if (plugin.config.get().getSection("Sync", new YAMLSection()).getBoolean("Player-Limit", false)) Util.reflect(ListenerInfo.class.getDeclaredField("maxPlayers"), listeners.get(i), platform.getSection("bungee").getSectionList("listeners").get(i).getInt("player-limit"));
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if (plugin.config.get().getSection("Sync", new YAMLSection()).getBoolean("Server-Priorities", true)) Util.reflect(ListenerInfo.class.getDeclaredField("serverPriority"), listeners.get(i), platform.getSection("bungee").getSectionList("listeners").get(i).getRawStringList("priorities"));
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}
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if (plugin.config.get().getSection("Sync", new YAMLSection()).getBoolean("Disabled-Commands", false)) Util.reflect(Configuration.class.getDeclaredField("disabledCommands"), plugin.getConfig(), platform.getSection("bungee").getRawStringList("disabled-cmds"));
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if (plugin.config.get().getSection("Sync", new YAMLSection()).getBoolean("Player-Limit", false)) Util.reflect(Configuration.class.getDeclaredField("playerLimit"), plugin.getConfig(), platform.getSection("bungee").getInt("player-limit"));
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} catch (Exception e) {
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System.out.println("SubServers > Problem syncing BungeeCord configuration options");
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e.printStackTrace();
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}
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for (Server server : servers.values()) {
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plugin.merge(server);
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}
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})));
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while (queue.size() != 0) {
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sendPacket(queue.get(0));
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queue.remove(0);
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}
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socket.rename(true);
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plugin.getPluginManager().callEvent(new SubNetworkConnectEvent(this));
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}
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static {
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addCipher("AES", new AES(128));
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addCipher("AES_128", new AES(128));
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addCipher("AES_192", new AES(192));
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addCipher("AES_256", new AES(256));
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} private void loadDefaults() {
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defaults = true;
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registerPacket(new PacketAuthorization(plugin, null), "SubData", "Authorization");
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registerPacket(new PacketCommandServer(), "SubServers", "CommandServer");
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registerPacket(new PacketCreateServer(), "SubServers", "CreateServer");
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registerPacket(new PacketDownloadGroupInfo(), "SubServers", "DownloadGroupInfo");
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registerPacket(new PacketDownloadHostInfo(), "SubServers", "DownloadHostInfo");
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registerPacket(new PacketDownloadLang(plugin), "SubServers", "DownloadLang");
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registerPacket(new PacketDownloadNetworkList(), "SubServers", "DownloadNetworkList");
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registerPacket(new PacketDownloadPlatformInfo(), "SubServers", "DownloadPlatformInfo");
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registerPacket(new PacketDownloadPlayerList(), "SubServers", "DownloadPlayerList");
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registerPacket(new PacketDownloadProxyInfo(), "SubServers", "DownloadProxyInfo");
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registerPacket(new PacketDownloadServerInfo(), "SubServers", "DownloadServerInfo");
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registerPacket(new PacketInExUpdateWhitelist(plugin), "SubServers", "ExUpdateWhitelist");
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registerPacket(new PacketInRunEvent(plugin), "SubServers", "RunEvent");
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registerPacket(new PacketInReset(), "SubServers", "Reset");
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registerPacket(new PacketLinkProxy(plugin), "SubServers", "LinkProxy");
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registerPacket(new PacketRestartServer(), "SubServers", "RestartServer");
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registerPacket(new PacketStartServer(), "SubServers", "StartServer");
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registerPacket(new PacketStopServer(), "SubServers", "StopServer");
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registerPacket(PacketAuthorization.class, "SubData", "Authorization");
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registerPacket(PacketCommandServer.class, "SubServers", "CommandServer");
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registerPacket(PacketCreateServer.class, "SubServers", "CreateServer");
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registerPacket(PacketDownloadGroupInfo.class, "SubServers", "DownloadGroupInfo");
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registerPacket(PacketDownloadHostInfo.class, "SubServers", "DownloadHostInfo");
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registerPacket(PacketDownloadLang.class, "SubServers", "DownloadLang");
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registerPacket(PacketDownloadNetworkList.class, "SubServers", "DownloadNetworkList");
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registerPacket(PacketDownloadPlatformInfo.class, "SubServers", "DownloadPlatformInfo");
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registerPacket(PacketDownloadPlayerList.class, "SubServers", "DownloadPlayerList");
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registerPacket(PacketDownloadProxyInfo.class, "SubServers", "DownloadProxyInfo");
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registerPacket(PacketDownloadServerInfo.class, "SubServers", "DownloadServerInfo");
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registerPacket(PacketLinkProxy.class, "SubServers", "LinkProxy");
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registerPacket(PacketRestartServer.class, "SubServers", "RestartServer");
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registerPacket(PacketStartServer.class, "SubServers", "StartServer");
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registerPacket(PacketStopServer.class, "SubServers", "StopServer");
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}
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private void loop() {
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new Thread(() -> {
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try {
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MessageUnpacker in = MessagePack.newDefaultUnpacker(socket.get().getInputStream());
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Value input;
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while ((input = in.unpackValue()) != null) {
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recieve(input);
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}
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try {
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destroy(plugin.config.get().getSection("Settings").getSection("SubData").getInt("Reconnect", 30));
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} catch (IOException e1) {
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e1.printStackTrace();
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}
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} catch (Exception e) {
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if (!(e instanceof SocketException || e instanceof MessageInsufficientBufferException)) e.printStackTrace();
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try {
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destroy(plugin.config.get().getSection("Settings").getSection("SubData").getInt("Reconnect", 30));
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} catch (IOException e1) {
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e1.printStackTrace();
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}
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}
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}, "SubServers.Sync::SubData_Packet_Listener").start();
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}
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private void recieve(Value input) {
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try {
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YAMLSection data = cipher.decrypt(password, input);
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for (PacketIn packet : decodePacket(data)) {
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try {
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packet.execute((data.contains("c")) ? data.getSection("c") : null);
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} catch (Throwable e) {
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new InvocationTargetException(e, "Exception while executing PacketIn").printStackTrace();
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}
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}
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} catch (JsonParseException | YAMLException e) {
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new IllegalPacketException("Unknown Packet Format: " + input).printStackTrace();
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} catch (IllegalPacketException e) {
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e.printStackTrace();
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} catch (Exception e) {
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new InvocationTargetException(e, "Exception while decoding packet").printStackTrace();
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}
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}
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/**
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* Gets the Assigned Proxy Name
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*
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* @return Host Name
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*/
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@SuppressWarnings("unchecked")
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public String getName() {
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if (name != null) {
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return name;
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} else if (plugin.redis) {
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try {
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return (String) plugin.redis("getServerId");
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} catch (Exception e) {
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return null;
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}
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} else {
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return null;
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}
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}
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/**
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* Gets the Server Socket
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*
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* @return Server Socket
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*/
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public Socket getClient() {
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return socket.get();
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}
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/**
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* Add a Cipher for use by SubData
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*
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* @param cipher Cipher to Add
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* @param handle Handle to Bind
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*/
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public static void addCipher(String handle, Cipher cipher) {
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if (Util.isNull(cipher)) throw new NullPointerException();
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if (ciphers.keySet().contains(handle.toUpperCase().replace('-', '_').replace(' ', '_'))) throw new IllegalStateException("Cipher already exists: " + handle);
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ciphers.put(handle.toUpperCase().replace('-', '_').replace(' ', '_'), cipher);
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}
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/**
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* Gets the Ciphers
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*
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* @return Cipher Map
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*/
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public static Map<String, Cipher> getCiphers() {
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return new TreeMap<>(ciphers);
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}
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/**
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* Gets the Client's Cipher
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*
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* @return Cipher
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*/
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public Cipher getCipher() {
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return cipher;
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}
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/**
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* Gets a Cipher by Handle
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*
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* @param handle Handle
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* @return Cipher
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*/
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public static Cipher getCipher(String handle) {
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return getCiphers().get(handle.toUpperCase().replace('-', '_').replace(' ', '_'));
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}
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/**
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* Register PacketIn to the Network
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*
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* @param packet PacketIn to register
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* @param channel Packet Channel
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* @param handle Handle to Bind
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*/
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public static void registerPacket(PacketIn packet, String channel, String handle) {
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if (Util.isNull(packet, channel, handle)) throw new NullPointerException();
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HashMap<String, List<PacketIn>> map = (pIn.keySet().contains(channel.toLowerCase()))?pIn.get(channel.toLowerCase()):new HashMap<String, List<PacketIn>>();
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List<PacketIn> list = (map.keySet().contains(handle))?map.get(handle):new ArrayList<PacketIn>();
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if (!list.contains(packet)) {
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list.add(packet);
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map.put(handle, list);
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pIn.put(channel.toLowerCase(), map);
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}
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}
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/**
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* Unregister PacketIn from the Network
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*
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* @param channel Packet Channel
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* @param packet PacketIn to unregister
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*/
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public static void unregisterPacket(String channel, PacketIn packet) {
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if (Util.isNull(channel, packet)) throw new NullPointerException();
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if (pIn.keySet().contains(channel.toLowerCase())) {
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List<String> search = new ArrayList<String>();
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search.addAll(pIn.get(channel.toLowerCase()).keySet());
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for (String handle : search) if (pIn.get(channel.toLowerCase()).get(handle).contains(packet)) {
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List<PacketIn> list = pIn.get(channel.toLowerCase()).get(handle);
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list.remove(packet);
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if (list.isEmpty()) {
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pIn.get(channel.toLowerCase()).remove(handle);
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if (pIn.get(channel.toLowerCase()).isEmpty()) pIn.remove(channel.toLowerCase());
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} else {
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pIn.get(channel.toLowerCase()).put(handle, list);
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}
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}
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}
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}
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/**
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* Register PacketOut to the Network
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*
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* @param packet PacketOut to register
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* @param channel Packet Channel
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* @param handle Handle to bind
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*/
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public static void registerPacket(Class<? extends PacketOut> packet, String channel, String handle) {
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if (Util.isNull(packet, channel, handle)) throw new NullPointerException();
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pOut.put(packet, new NamedContainer<String, String>(channel.toLowerCase(), handle));
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}
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/**
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* Unregister PacketOut to the Network
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*
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* @param channel Packet Channel
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* @param packet PacketOut to unregister
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*/
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public static void unregisterPacket(String channel, Class<? extends PacketOut> packet) {
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if (Util.isNull(channel, packet)) throw new NullPointerException();
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if (pOut.keySet().contains(packet) && pOut.get(packet).name().equalsIgnoreCase(channel)) pOut.remove(packet);
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}
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/**
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* Grab PacketIn Instances via handle
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*
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* @param channel Packet Channel
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* @param handle Handle
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* @return PacketIn
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*/
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public static List<? extends PacketIn> getPacket(String channel, String handle) {
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if (Util.isNull(channel, handle)) throw new NullPointerException();
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return new ArrayList<PacketIn>(pIn.get(channel.toLowerCase()).get(handle));
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}
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/**
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* Send Packet to Server
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*
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* @param packet Packet to send
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*/
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public void sendPacket(PacketOut packet) {
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if (Util.isNull(packet)) throw new NullPointerException();
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if (socket.get() == null || !socket.name()) {
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queue.add(new NamedContainer<>(null, packet));
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} else {
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sendPacket(new NamedContainer<>(null, packet));
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}
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}
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private void sendPacket(NamedContainer<String, PacketOut> packet) {
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try {
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YAMLSection data = encodePacket(packet.get());
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if (packet.name() != null) data.set("f", packet.name());
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out.packValue(getCipher().encrypt(password, data));
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out.flush();
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} catch (Throwable e) {
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e.printStackTrace();
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}
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}
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/**
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* Forward Packet to Client
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*
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* @param packet Packet to send
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* @param location Where to send
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*/
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public void forwardPacket(PacketOut packet, String location) {
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if (Util.isNull(packet, location)) throw new NullPointerException();
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if (socket.get() == null || !socket.name()) {
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queue.add(new NamedContainer<>(location, packet));
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} else {
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sendPacket(new NamedContainer<>(null, packet));
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}
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}
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/**
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* Broadcast packet to all Clients
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*
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* @param packet Packet to send
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*/
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public void broadcastPacket(PacketOut packet) {
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forwardPacket(packet, "");
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}
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/**
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* Encode PacketOut
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*
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* @param packet PacketOut
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* @return JSON Formatted Packet
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* @throws IllegalPacketException
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*/
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private static YAMLSection encodePacket(PacketOut packet) throws IllegalPacketException, InvocationTargetException {
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YAMLSection json = new YAMLSection();
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if (!pOut.keySet().contains(packet.getClass())) throw new IllegalPacketException("Unknown PacketOut Channel: " + packet.getClass().getCanonicalName());
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if (packet.getVersion() == null) throw new NullPointerException("PacketOut Version cannot be null: " + packet.getClass().getCanonicalName());
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try {
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YAMLSection contents = packet.generate();
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json.set("n", pOut.get(packet.getClass()).name());
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json.set("h", pOut.get(packet.getClass()).get());
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json.set("v", packet.getVersion());
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if (contents != null) json.set("c", contents);
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return json;
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} catch (Throwable e) {
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throw new InvocationTargetException(e, "Exception while encoding packet");
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}
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}
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/**
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* Decode PacketIn
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*
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* @param data Data to Decode
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* @return PacketIn
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* @throws IllegalPacketException
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* @throws InvocationTargetException
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*/
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private static List<PacketIn> decodePacket(YAMLSection data) throws IllegalPacketException, InvocationTargetException {
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if (!data.contains("h") || !data.contains("v")) throw new IllegalPacketException("Unknown Packet Format: " + data.toString());
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if (!pIn.keySet().contains(data.getRawString("n")) || !pIn.get(data.getRawString("n")).keySet().contains(data.getRawString("h"))) throw new IllegalPacketException("Unknown PacketIn Channel: " + data.getRawString("n") + ':' + data.getRawString("h"));
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List<PacketIn> list = new ArrayList<PacketIn>();
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for (PacketIn packet : pIn.get(data.getRawString("n")).get(data.getRawString("h"))) {
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if (packet.isCompatible(data.getVersion("v"))) {
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list.add(packet);
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} else {
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new IllegalPacketException("Packet Version Mismatch in " + data.getRawString("h") + ": " + data.getRawString("v") + " -> " + packet.getVersion().toFullString()).printStackTrace();
|
|
}
|
|
}
|
|
|
|
return list;
|
|
}
|
|
|
|
/**
|
|
* Drops All Connections and Stops the SubData Listener
|
|
*
|
|
* @throws IOException
|
|
*/
|
|
public void destroy(int reconnect) throws IOException {
|
|
if (Util.isNull(reconnect)) throw new NullPointerException();
|
|
if (socket.get() != null) {
|
|
final Socket socket = this.socket.get();
|
|
this.socket.set(null);
|
|
if (!socket.isClosed()) socket.close();
|
|
plugin.getPluginManager().callEvent(new SubNetworkDisconnectEvent());
|
|
System.out.println("SubServers > The SubData Connection was closed");
|
|
if (reconnect > 0) {
|
|
System.out.println("SubServers > Attempting to reconnect in " + reconnect + " seconds");
|
|
Timer timer = new Timer("SubServers.Sync::SubData_Reconnect_Handler");
|
|
timer.scheduleAtFixedRate(new TimerTask() {
|
|
@Override
|
|
public void run() {
|
|
try {
|
|
plugin.subdata = new SubDataClient(plugin, name, socket.getInetAddress(), socket.getPort(), cipher);
|
|
timer.cancel();
|
|
while (queue.size() != 0) {
|
|
if (queue.get(0).name() != null) {
|
|
plugin.subdata.forwardPacket(queue.get(0).get(), queue.get(0).name());
|
|
} else {
|
|
plugin.subdata.sendPacket(queue.get(0).get());
|
|
}
|
|
queue.remove(0);
|
|
}
|
|
} catch (IOException e) {
|
|
System.out.println("SubServers > Connection was unsuccessful, retrying in " + reconnect + " seconds");
|
|
}
|
|
}
|
|
}, TimeUnit.SECONDS.toMillis(reconnect), TimeUnit.SECONDS.toMillis(reconnect));
|
|
}
|
|
}
|
|
}
|
|
}
|