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package net.minecraft.server;
import java.net.InetAddress;
import java.net.Socket;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.util.Arrays;
import java.util.Random;
import java.util.logging.Logger;
import javax.crypto.SecretKey;
public class NetLoginHandler extends NetHandler {
private byte[] d;
public static Logger logger = Logger.getLogger("Minecraft");
private static Random random = new Random();
public NetworkManager networkManager;
public boolean c = false;
private MinecraftServer server;
private int g = 0;
private String h = null;
private volatile boolean i = false;
private String loginKey = Long.toString(random.nextLong(), 16); // CraftBukkit - Security fix
private SecretKey k = null;
public String hostname = ""; // CraftBukkit - add field
private boolean login = false; // CraftBukkit
public NetLoginHandler(MinecraftServer minecraftserver, Socket socket, String s) throws java.io.IOException { // CraftBukkit - throws IOException
this.server = minecraftserver;
this.networkManager = new NetworkManager(socket, s, this, minecraftserver.E().getPrivate());
this.networkManager.e = 0;
}
// CraftBukkit start
public Socket getSocket() {
return this.networkManager.getSocket();
}
// CraftBukkit end
public void c() {
if (this.i) {
this.d();
}
if (this.g++ == 600) {
this.disconnect("Took too long to log in");
} else {
this.networkManager.b();
}
}
public void disconnect(String s) {
try {
logger.info("Disconnecting " + this.getName() + ": " + s);
this.networkManager.queue(new Packet255KickDisconnect(s));
this.networkManager.d();
this.c = true;
} catch (Exception exception) {
exception.printStackTrace();
}
}
public void a(Packet2Handshake packet2handshake) {
// CraftBukkit start
this.hostname = packet2handshake.c == null ? "" : packet2handshake.c + ':' + packet2handshake.d;
// CraftBukkit end
this.h = packet2handshake.f();
if (!this.h.equals(StripColor.a(this.h))) {
this.disconnect("Invalid username!");
} else {
PublicKey publickey = this.server.E().getPublic();
if (packet2handshake.d() != 39) {
if (packet2handshake.d() > 39) {
this.disconnect("Outdated server!");
} else {
this.disconnect("Outdated client!");
}
} else {
this.loginKey = this.server.getOnlineMode() ? Long.toString(random.nextLong(), 16) : "-";
this.d = new byte[4];
random.nextBytes(this.d);
this.networkManager.queue(new Packet253KeyRequest(this.loginKey, publickey, this.d));
}
}
}
public void a(Packet252KeyResponse packet252keyresponse) {
PrivateKey privatekey = this.server.E().getPrivate();
this.k = packet252keyresponse.a(privatekey);
if (!Arrays.equals(this.d, packet252keyresponse.b(privatekey))) {
this.disconnect("Invalid client reply");
}
this.networkManager.queue(new Packet252KeyResponse());
}
public void a(Packet205ClientCommand packet205clientcommand) {
if (packet205clientcommand.a == 0) {
if (this.server.getOnlineMode()) {
// CraftBukkit start
if (this.login) {
this.disconnect("Duplicate login");
return;
}
this.login = true;
// CraftBukkit end
(new ThreadLoginVerifier(this, server.server)).start(); // CraftBukkit - add CraftServer
} else {
this.i = true;
}
}
}
public void a(Packet1Login packet1login) {}
public void d() {
// CraftBukkit start
EntityPlayer s = this.server.getServerConfigurationManager().attemptLogin(this, this.h, this.hostname);
if (s == null) {
return;
// CraftBukkit end
} else {
EntityPlayer entityplayer = this.server.getServerConfigurationManager().processLogin(s); // CraftBukkit - this.h -> s
if (entityplayer != null) {
this.server.getServerConfigurationManager().a((INetworkManager) this.networkManager, entityplayer);
}
}
this.c = true;
}
public void a(String s, Object[] aobject) {
logger.info(this.getName() + " lost connection");
this.c = true;
}
public void a(Packet254GetInfo packet254getinfo) {
if (this.networkManager.getSocket() == null) return; // CraftBukkit - fix NPE when a client queries a server that is unable to handle it.
try {
// CraftBukkit start
org.bukkit.event.server.ServerListPingEvent pingEvent = org.bukkit.craftbukkit.event.CraftEventFactory.callServerListPingEvent(this.server.server, getSocket().getInetAddress(), this.server.getMotd(), this.server.getServerConfigurationManager().getPlayerCount(), this.server.getServerConfigurationManager().getMaxPlayers());
String s = pingEvent.getMotd() + "\u00A7" + this.server.getServerConfigurationManager().getPlayerCount() + "\u00A7" + pingEvent.getMaxPlayers();
// CraftBukkit end
InetAddress inetaddress = null;
if (this.networkManager.getSocket() != null) {
inetaddress = this.networkManager.getSocket().getInetAddress();
}
this.networkManager.queue(new Packet255KickDisconnect(s));
this.networkManager.d();
if (inetaddress != null && this.server.ac() instanceof DedicatedServerConnection) {
((DedicatedServerConnection) this.server.ac()).a(inetaddress);
}
this.c = true;
} catch (Exception exception) {
exception.printStackTrace();
}
}
public void onUnhandledPacket(Packet packet) {
this.disconnect("Protocol error");
}
public String getName() {
return this.h != null ? this.h + " [" + this.networkManager.getSocketAddress().toString() + "]" : this.networkManager.getSocketAddress().toString();
}
public boolean a() {
return true;
}
static String a(NetLoginHandler netloginhandler) {
return netloginhandler.loginKey;
}
static MinecraftServer b(NetLoginHandler netloginhandler) {
return netloginhandler.server;
}
static SecretKey c(NetLoginHandler netloginhandler) {
return netloginhandler.k;
}
static String d(NetLoginHandler netloginhandler) {
return netloginhandler.h;
}
static boolean a(NetLoginHandler netloginhandler, boolean flag) {
return netloginhandler.i = flag;
}
}
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