418 lines
16 KiB
Java
418 lines
16 KiB
Java
package net.ME1312.SubServers.Bungee.Network;
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import net.ME1312.SubServers.Bungee.Library.Exception.IllegalPacketException;
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import net.ME1312.SubServers.Bungee.Library.Util;
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import net.ME1312.SubServers.Bungee.Library.Version.Version;
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import net.ME1312.SubServers.Bungee.Network.Packet.*;
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import net.ME1312.SubServers.Bungee.SubPlugin;
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import org.json.JSONObject;
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import java.io.IOException;
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import java.lang.reflect.InvocationTargetException;
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import java.net.*;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.List;
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/**
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* SubDataServer Class
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*/
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public final class SubDataServer {
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protected static final int MAX_QUEUE = 64;
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private static HashMap<Class<? extends PacketOut>, String> pOut = new HashMap<Class<? extends PacketOut>, String>();
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private static HashMap<String, List<PacketIn>> pIn = new HashMap<String, List<PacketIn>>();
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private static List<InetAddress> allowedAddresses = new ArrayList<InetAddress>();
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private static boolean defaults = false;
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private HashMap<String, Client> clients = new HashMap<String, Client>();
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private ServerSocket server;
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private Encryption encryption;
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protected SubPlugin plugin;
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public enum Encryption {
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NONE,
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AES,
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AES_128,
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AES_192,
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AES_256,
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}
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/**
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* SubData Server Instance
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*
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* @param plugin SubPlugin
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* @param port Port
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* @param address Bind
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* @param encryption Encryption Type
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* @throws IOException
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*/
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public SubDataServer(SubPlugin plugin, int port, InetAddress address, Encryption encryption) throws IOException {
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if (Util.isNull(plugin, port, encryption, MAX_QUEUE)) throw new NullPointerException();
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if (address == null) {
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server = new ServerSocket(port, MAX_QUEUE);
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allowConnection(InetAddress.getByName("127.0.0.1"));
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} else {
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server = new ServerSocket(port, MAX_QUEUE, address);
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allowConnection(address);
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}
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this.plugin = plugin;
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this.encryption = encryption;
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if (!defaults) loadDefaults();
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}
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private void loadDefaults() {
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defaults = true;
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for (String s : plugin.config.get().getSection("Settings").getSection("SubData").getStringList("Allowed-Connections")) {
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try {
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allowedAddresses.add(InetAddress.getByName(s));
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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plugin.getPluginManager().registerListener(null, new PacketOutRunEvent(plugin));
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registerPacket(new PacketAuthorization(plugin), "Authorization");
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registerPacket(new PacketCommandServer(plugin), "SubCommandServer");
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registerPacket(new PacketCreateServer(plugin), "SubCreateServer");
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registerPacket(new PacketDownloadHostInfo(plugin), "SubDownloadHostInfo");
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registerPacket(new PacketDownloadLang(plugin), "SubDownloadLang");
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registerPacket(new PacketDownloadNetworkList(plugin), "SubDownloadNetworkList");
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registerPacket(new PacketDownloadPlayerList(plugin), "SubDownloadPlayerList");
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registerPacket(new PacketDownloadProxyInfo(plugin), "SubDownloadProxyInfo");
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registerPacket(new PacketDownloadServerInfo(plugin), "SubDownloadServerInfo");
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registerPacket(new PacketDownloadServerList(plugin), "SubDownloadServerList");
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registerPacket(new PacketEditServer(plugin), "SubEditServer");
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registerPacket(new PacketExAddServer(), "SubExAddServer");
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registerPacket(new PacketExConfigureHost(plugin), "SubExConfigureHost");
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registerPacket(new PacketExCreateServer(), "SubExCreateServer");
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registerPacket(new PacketExDeleteServer(), "SubExDeleteServer");
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registerPacket(new PacketExRemoveServer(), "SubExRemoveServer");
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registerPacket(new PacketExUpdateServer(plugin), "SubExUpdateServer");
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registerPacket(new PacketInExLogMessage(), "SubExLogMessage");
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registerPacket(new PacketInExRequestQueue(plugin), "SubExRequestQueue");
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registerPacket(new PacketLinkExHost(plugin), "SubLinkExHost");
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registerPacket(new PacketLinkServer(plugin), "SubLinkServer");
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registerPacket(new PacketListenLog(plugin), "SubListenLog");
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registerPacket(new PacketStartServer(plugin), "SubStartServer");
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registerPacket(new PacketStopServer(plugin), "SubStopServer");
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registerPacket(new PacketTeleportPlayer(plugin), "SubTeleportPlayer");
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registerPacket(PacketAuthorization.class, "Authorization");
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registerPacket(PacketCommandServer.class, "SubCommandServer");
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registerPacket(PacketCreateServer.class, "SubCreateServer");
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registerPacket(PacketDownloadHostInfo.class, "SubDownloadHostInfo");
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registerPacket(PacketDownloadLang.class, "SubDownloadLang");
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registerPacket(PacketDownloadNetworkList.class, "SubDownloadNetworkList");
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registerPacket(PacketDownloadPlayerList.class, "SubDownloadPlayerList");
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registerPacket(PacketDownloadProxyInfo.class, "SubDownloadProxyInfo");
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registerPacket(PacketDownloadServerInfo.class, "SubDownloadServerInfo");
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registerPacket(PacketDownloadServerList.class, "SubDownloadServerList");
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registerPacket(PacketEditServer.class, "SubEditServer");
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registerPacket(PacketExAddServer.class, "SubExAddServer");
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registerPacket(PacketExConfigureHost.class, "SubExConfigureHost");
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registerPacket(PacketExCreateServer.class, "SubExCreateServer");
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registerPacket(PacketExDeleteServer.class, "SubExDeleteServer");
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registerPacket(PacketExRemoveServer.class, "SubExRemoveServer");
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registerPacket(PacketExUpdateServer.class, "SubExUpdateServer");
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registerPacket(PacketLinkExHost.class, "SubLinkExHost");
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registerPacket(PacketLinkServer.class, "SubLinkServer");
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registerPacket(PacketListenLog.class, "SubListenLog");
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registerPacket(PacketOutRunEvent.class, "SubRunEvent");
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registerPacket(PacketOutReset.class, "SubReset");
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registerPacket(PacketStartServer.class, "SubStartServer");
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registerPacket(PacketStopServer.class, "SubStopServer");
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registerPacket(PacketTeleportPlayer.class, "SubTeleportPlayer");
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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 ServerSocket getServer() {
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return server;
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}
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/**
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* Gets the Server's Encryption method
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*
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* @return Encryption method
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*/
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public Encryption getEncryption() {
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return encryption;
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}
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/**
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* Add a Client to the Network
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*
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* @param socket Client to add
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* @throws IOException
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*/
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public Client addClient(Socket socket) throws IOException {
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if (Util.isNull(socket)) throw new NullPointerException();
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if (allowedAddresses.contains(socket.getInetAddress())) {
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Client client = new Client(this, socket);
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System.out.println("SubData > " + client.getAddress().toString() + " has connected");
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clients.put(client.getAddress().toString(), client);
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return client;
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} else {
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System.out.println("SubData > " + socket.getInetAddress().toString() + " attempted to connect, but isn't white-listed");
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socket.close();
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return null;
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}
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}
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/**
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* Grabs a Client from the Network
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*
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* @param socket Socket to search
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* @return Client
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*/
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public Client getClient(Socket socket) {
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if (Util.isNull(socket)) throw new NullPointerException();
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return clients.get(new InetSocketAddress(socket.getInetAddress(), socket.getPort()).toString());
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}
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/**
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* Grabs a Client from the Network
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*
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* @param address Address to search
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* @return Client
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*/
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public Client getClient(InetSocketAddress address) {
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if (Util.isNull(address)) throw new NullPointerException();
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return clients.get(address.toString());
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}
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/**
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* Grabs a Client from the Network
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*
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* @param address Address to search
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* @return Client
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*/
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public Client getClient(String address) {
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if (Util.isNull(address)) throw new NullPointerException();
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return clients.get(address);
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}
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/**
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* Grabs all the Clients on the Network
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*
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* @return Client List
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*/
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public Collection<Client> getClients() {
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return clients.values();
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}
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/**
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* Remove a Client from the Network
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*
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* @param client Client to Kick
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* @throws IOException
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*/
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public void removeClient(Client client) throws IOException {
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if (Util.isNull(client)) throw new NullPointerException();
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SocketAddress address = client.getAddress();
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if (clients.keySet().contains(address.toString())) {
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clients.remove(address.toString());
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client.disconnect();
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System.out.println("SubData > " + client.getAddress().toString() + " has disconnected");
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}
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}
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/**
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* Remove a Client from the Network
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*
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* @param address Address to Kick
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* @throws IOException
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*/
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public void removeClient(InetSocketAddress address) throws IOException {
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if (Util.isNull(address)) throw new NullPointerException();
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Client client = clients.get(address.toString());
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if (clients.keySet().contains(address.toString())) {
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clients.remove(address.toString());
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client.disconnect();
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System.out.println("SubData > " + client.getAddress().toString() + " has disconnected");
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}
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}
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/**
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* Remove a Client from the Network
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*
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* @param address Address to Kick
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* @throws IOException
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*/
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public void removeClient(String address) throws IOException {
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if (Util.isNull(address)) throw new NullPointerException();
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Client client = clients.get(address);
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if (clients.keySet().contains(address)) {
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clients.remove(address);
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client.disconnect();
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System.out.println("SubData > " + client.getAddress().toString() + " has disconnected");
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}
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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 handle Handle to Bind
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*/
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public static void registerPacket(PacketIn packet, String handle) {
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if (Util.isNull(packet, handle)) throw new NullPointerException();
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List<PacketIn> list = (pIn.keySet().contains(handle))?pIn.get(handle):new ArrayList<PacketIn>();
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if (!list.contains(packet)) {
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list.add(packet);
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pIn.put(handle, list);
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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 packet PacketIn to unregister
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*/
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public static void unregisterPacket(PacketIn packet) {
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if (Util.isNull(packet)) throw new NullPointerException();
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List<String> search = new ArrayList<String>();
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search.addAll(pIn.keySet());
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for (String handle : search) if (pIn.get(handle).contains(packet)) {
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List<PacketIn> list = pIn.get(handle);
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list.remove(packet);
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if (list.isEmpty()) {
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pIn.remove(handle);
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} else {
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pIn.put(handle, list);
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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 handle Handle to bind
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*/
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public static void registerPacket(Class<? extends PacketOut> packet, String handle) {
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if (Util.isNull(packet, handle)) throw new NullPointerException();
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pOut.put(packet, 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 packet PacketOut to unregister
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*/
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public static void unregisterPacket(Class<? extends PacketOut> packet) {
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if (Util.isNull(packet)) throw new NullPointerException();
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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 handle Handle
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* @return PacketIn
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*/
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public static List<? extends PacketIn> getPacket(String handle) {
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if (Util.isNull(handle)) throw new NullPointerException();
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return new ArrayList<PacketIn>(pIn.get(handle));
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}
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/**
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* Broadcast a Packet to everything on the Network<br>
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* <b>Warning:</b> There are usually different types of applications on the network at once, they may not recognise the same packet handles
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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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if (Util.isNull(packet)) throw new NullPointerException();
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for (Client client : clients.values()) {
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client.sendPacket(packet);
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}
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}
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/**
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* Allow Connections from an Address
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*
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* @param address Address to allow
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*/
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public static void allowConnection(InetAddress address) {
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if (Util.isNull(address)) throw new NullPointerException();
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if (!allowedAddresses.contains(address)) allowedAddresses.add(address);
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}
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/**
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* Deny Connections from an Address
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*
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* @param address Address to deny
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*/
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public static void denyConnection(InetAddress address) {
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if (Util.isNull(address)) throw new NullPointerException();
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allowedAddresses.remove(address);
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}
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/**
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* JSON 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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protected static JSONObject encodePacket(Client client, PacketOut packet) throws IllegalPacketException, InvocationTargetException {
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JSONObject json = new JSONObject();
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if (!pOut.keySet().contains(packet.getClass())) throw new IllegalPacketException(packet.getClass().getCanonicalName() + ": Unknown PacketOut Channel: " + packet.getClass().getCanonicalName());
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if (packet.getVersion().toString() == null) throw new NullPointerException(packet.getClass().getCanonicalName() + ": PacketOut getVersion() cannot be null: " + packet.getClass().getCanonicalName());
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try {
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JSONObject contents = packet.generate();
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json.put("h", pOut.get(packet.getClass()));
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json.put("v", packet.getVersion().toString());
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if (contents != null) json.put("c", contents);
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return json;
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} catch (Throwable e) {
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throw new InvocationTargetException(e, packet.getClass().getCanonicalName() + ": Exception while encoding packet");
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}
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}
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/**
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* JSON Decode PacketIn
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*
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* @param json JSON to Decode
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* @return PacketIn
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* @throws IllegalPacketException
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*/
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protected static List<PacketIn> decodePacket(Client client, JSONObject json) throws IllegalPacketException {
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if (!json.keySet().contains("h") || !json.keySet().contains("v")) throw new IllegalPacketException(client.getAddress().toString() + ": Unknown Packet Format: " + json.toString());
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if (!pIn.keySet().contains(json.getString("h"))) throw new IllegalPacketException(client.getAddress().toString() + ": Unknown PacketIn Channel: " + json.getString("h"));
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List<PacketIn> list = new ArrayList<PacketIn>();
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for (PacketIn packet : pIn.get(json.getString("h"))) {
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if (new Version(json.getString("v")).equals(packet.getVersion())) {
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list.add(packet);
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} else {
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new IllegalPacketException(client.getAddress().toString() + ": Packet Version Mismatch in " + json.getString("h") + ": " + json.getString("v") + " =/= " + packet.getVersion().toString()).printStackTrace();
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}
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}
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return list;
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}
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/**
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* Drops All Connections and Stops the SubData Listener
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*
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* @throws IOException
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*/
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public void destroy() throws IOException {
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while(clients.size() > 0) {
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removeClient((Client) clients.values().toArray()[0]);
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}
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server.close();
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System.out.println("SubServers > The SubData Listener has been closed");
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plugin.subdata = null;
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}
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}
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