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/*
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
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 * Copyright 2004 The Apache Software Foundation
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 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
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package com.sun.grizzly.util.net.jsse;

import com.sun.grizzly.util.LoggerUtils;
import com.sun.grizzly.util.res.StringManager;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.util.Vector;
import java.security.KeyStore;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.net.ssl.SSLServerSocket;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLServerSocketFactory;

/*
  1. Make the JSSE's jars available, either as an installed
     extension (copy them into jre/lib/ext) or by adding
     them to the Tomcat classpath.
  2. keytool -genkey -alias tomcat -keyalg RSA
     Use "changeit" as password ( this is the default we use )
 */

/**
 * SSL server socket factory. It _requires_ a valid RSA key and
 * JSSE. 
 *
 * @author Harish Prabandham
 * @author Costin Manolache
 * @author Stefan Freyr Stefansson
 * @author EKR -- renamed to JSSESocketFactory
 */
public abstract class JSSESocketFactory
    extends com.sun.grizzly.util.net.ServerSocketFactory
{
    private static StringManager sm =
        StringManager.getManager("com.sun.grizzly.util.net.jsse.res");

    // defaults
    static String defaultProtocol = "TLS";
    static String defaultAlgorithm = "SunX509";
    static boolean defaultClientAuth = false;
    private static final String defaultKeyPass = "changeit";

    protected static final Logger logger = LoggerUtils.getLogger();

    protected boolean initialized;
    protected boolean clientAuth = false;
    protected SSLServerSocketFactory sslProxy = null;
    protected String[] enabledCiphers;

    public JSSESocketFactory () {
    }
    

    public ServerSocket createSocket (int port)
        throws IOException
    {
        if (!initialized) init();
        ServerSocket socket = sslProxy.createServerSocket(port);
        initServerSocket(socket);
        return socket;
    }
    
    public ServerSocket createSocket (int port, int backlog)
        throws IOException
    {
        if (!initialized) init();
        ServerSocket socket = sslProxy.createServerSocket(port, backlog);
        initServerSocket(socket);
        return socket;
    }
    
    public ServerSocket createSocket (int port, int backlog,
                                      InetAddress ifAddress)
        throws IOException
    {   
        if (!initialized) init();
        ServerSocket socket = sslProxy.createServerSocket(port, backlog,
                                                          ifAddress);
        initServerSocket(socket);
        return socket;
    }
    
    public Socket acceptSocket(ServerSocket socket)
        throws IOException
    {
        SSLSocket asock = null;
        try {
             asock = (SSLSocket)socket.accept();
             asock.setNeedClientAuth(clientAuth);
        } catch (SSLException e){
          throw new SocketException("SSL handshake error" + e.toString());
        }
        return asock;
    }

    public void handshake(Socket sock) throws IOException {
        ((SSLSocket)sock).startHandshake();
    }

    /*
     * Determines the SSL cipher suites to be enabled.
     *
     * @param requestedCiphers Comma-separated list of requested ciphers
     * @param supportedCiphers Array of supported ciphers
     *
     * @return Array of SSL cipher suites to be enabled, or null if none of the
     * requested ciphers are supported
     */
    protected String[] getEnabledCiphers(String requestedCiphers,
                                         String[] supportedCiphers) {

        String[] enabledCiphers = null;

        if (requestedCiphers != null) {
            Vector vec = null;
            String cipher = requestedCiphers;
            int index = requestedCiphers.indexOf(',');
            if (index != -1) {
                int fromIndex = 0;
                while (index != -1) {
                    cipher = requestedCiphers.substring(fromIndex, index).trim();
                    if (cipher.length() > 0) {
                        /*
                         * Check to see if the requested cipher is among the
                         * supported ciphers, i.e., may be enabled
                         */
                        for (int i=0; supportedCiphers != null
                                     && i 0) {
                    /*
                     * Check to see if the requested cipher is among the
                     * supported ciphers, i.e., may be enabled
                     */
                    for (int i=0; supportedCiphers != null
                                 && i




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