/*

 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package sun.security.ssl;

import java.io.IOException;

import java.net.InetAddress;

import java.net.ServerSocket;

import javax.net.ssl.SSLServerSocketFactory;

/**

 * This class creates SSL server sockets.

 *

 * @author David Brownell

 */

public final class SSLServerSocketFactoryImpl extends SSLServerSocketFactory {

    private static final int DEFAULT_BACKLOG = 50;

    private final SSLContextImpl context;

    /**

     * Constructor used to instantiate the default factory. This method is

     * only called if the old "ssl.ServerSocketFactory.provider" property in the

     * java.security file is set.

     */

    public SSLServerSocketFactoryImpl() throws Exception {

        this.context = SSLContextImpl.DefaultSSLContext.getDefaultImpl();

    }

    /**

     * Called from SSLContextImpl's getSSLServerSocketFactory().

     */

    SSLServerSocketFactoryImpl(SSLContextImpl context) {

        this.context = context;

    }

    /**

     * Returns an unbound server socket.

     *

     * @return the unbound socket

     * @throws IOException if the socket cannot be created

     * @see java.net.Socket#bind(java.net.SocketAddress)

     */

    @Override

    public ServerSocket createServerSocket() throws IOException {

        return new SSLServerSocketImpl(context);

    }

    @Override

    public ServerSocket createServerSocket(int port) throws IOException {

        return new SSLServerSocketImpl(context, port, DEFAULT_BACKLOG);

    }

    @Override

    public ServerSocket createServerSocket (

            int port, int backlog) throws IOException {

        return new SSLServerSocketImpl(context, port, backlog);

    }

    @Override

    public ServerSocket

    createServerSocket (int port,

            int backlog, InetAddress ifAddress) throws IOException {

        return new SSLServerSocketImpl(context, port, backlog, ifAddress);

    }

    /**

     * Returns the subset of the supported cipher suites which are

     * enabled by default.  These cipher suites all provide a minimum

     * quality of service whereby the server authenticates itself

     * (preventing person-in-the-middle attacks) and where traffic

     * is encrypted to provide confidentiality.

     */

    @Override

    public String[] getDefaultCipherSuites() {

        return CipherSuite.namesOf(context.getDefaultCipherSuites(true));

    }

    /**

     * Returns the names of the cipher suites which could be enabled for use

     * on an SSL connection.  Normally, only a subset of these will actually

     * be enabled by default, since this list may include cipher suites which

     * do not support the mutual authentication of servers and clients, or

     * which do not protect data confidentiality.  Servers may also need

     * certain kinds of certificates to use certain cipher suites.

     *

     * @return an array of cipher suite names

     */

    @Override

    public String[] getSupportedCipherSuites() {

        return CipherSuite.namesOf(context.getSupportedCipherSuites());

    }

}