448Project/ChatServer.java at main · MErenB/448Project · GitHub

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//
// ChatServer.java
// Created by Ting on 2/18/2003
// Modified : Priyank K. Patel <pkpatel@cs.stanford.edu>
//

// Java General
import java.util.*;
import java.math.BigInteger;

// socket
import java.net.*;
import java.io.*;

// Crypto
import java.security.*;
import java.security.cert.*;
import java.security.spec.*;
import java.security.interfaces.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import javax.crypto.interfaces.*;
import javax.security.auth.x500.*;
//import sun.security.x509.*;

public class ChatServer {

    private Hashtable _clients;
    private Hashtable _chatRoomA;
    private Hashtable _chatRoomB;
    private int _clientID = 0;
    private int _port;
    private String _hostName = null;
    // Some hints: security related fields.
    private String SERVER_KEYSTORE = "serverKeys";
    private char[] SERVER_KEYSTORE_PASSWORD = "123456".toCharArray();
    private char[] SERVER_KEY_PASSWORD = "123456".toCharArray();
    private ServerSocket _serverSocket = null;
    private SecureRandom secureRandom;
    private KeyStore serverKeyStore;
//    private KeyManagerFactory keyManagerFactory;
//    private TrustManagerFactory trustManagerFactory;

    public ChatServer(int port) {

        try {

            _clients = new Hashtable<Integer,ClientRecord>();
            _chatRoomA = new Hashtable();
            _chatRoomB = new Hashtable();

            _serverSocket = null;
            _clientID = -1;
            _port = port;
            InetAddress serverAddr = InetAddress.getByName(null);
            _hostName = serverAddr.getHostName();

        } catch (UnknownHostException e) {

            _hostName = "0.0.0.0";

        }
    }

    public static void main(String args[]) {

        try {

            int port = Integer.parseInt("10500");
            ChatServer server = new ChatServer(port);
            server.run();

        } catch (NumberFormatException e) {

            System.out.println("Useage: java ChatServer host portNum");
            e.printStackTrace();
            return;

        } catch (Exception e) {

            System.out.println("ChatServer error: " + e.getMessage());
            e.printStackTrace();
        }
    }

    /***
     *
     * Your methods for setting up secure connection
     *
     */
    public void run() {

        try {

            _serverSocket = new ServerSocket(_port);
            System.out.println("ChatServer is running on "
                    + _hostName + " port " + _port);

            while (true) {

                Socket socket = _serverSocket.accept();
                ClientRecord clientRecord = new ClientRecord(socket);
                _clients.put(_clientID, clientRecord);
                //todo bi alt satirda clientID hatali bi is olabilir.
                ChatServerThread thread = new ChatServerThread(this, socket,_clientID++);
                thread.start();
            }

            //_serverSocket.close();

        } catch (IOException e) {

            System.err.println("Could not listen on port: " + _port);
            System.exit(-1);

        } catch (Exception e) {

            e.printStackTrace();
            System.exit(1);

        }
    }

    public Hashtable getClientRecords() {

        return _clients;
    }
}