/*

 * Copyright (c) 2012, 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

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 */

import java.util.List;

import javax.net.ssl.SNIServerName;

/**

 * Encapsulates the security capabilities of an SSL/TLS connection.

 * <P>

 * The security capabilities are the list of ciphersuites to be accepted in

 * an SSL/TLS handshake, the record version, the hello version, and server

 * name indication, etc., of an SSL/TLS connection.

 * <P>

 * <code>SSLCapabilities</code> can be retrieved by exploring the network

 * data of an SSL/TLS connection via {@link SSLExplorer#explore(ByteBuffer)}

 * or {@link SSLExplorer#explore(byte[], int, int)}.

 *

 * @see SSLExplorer

 */

public abstract class SSLCapabilities {

    /**

     * Returns the record version of an SSL/TLS connection

     *

     * @return a non-null record version

     */

    public abstract String getRecordVersion();

    /**

     * Returns the hello version of an SSL/TLS connection

     *

     * @return a non-null hello version

     */

    public abstract String getHelloVersion();

    /**

     * Returns a <code>List</code> containing all {@link SNIServerName}s

     * of the server name indication.

     *

     * @return a non-null immutable list of {@link SNIServerName}s

     *         of the server name indication parameter, may be empty

     *         if no server name indication.

     *

     * @see SNIServerName

     */

    public abstract List<SNIServerName> getServerNames();

}