/*
 * Copyright (c) 2009, 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.
 *
 * 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.
 */

/*
 * @test
 * @bug 6697270
 * @summary Inputstream dosent behave correct
 */

import java.io.*;
import java.net.*;
import javax.net.ssl.*;

public class ReadZeroBytes {

    /*
     * =============================================================
     * Set the various variables needed for the tests, then
     * specify what tests to run on each side.
     */

    /*
     * Should we run the client or server in a separate thread?
     * Both sides can throw exceptions, but do you have a preference
     * as to which side should be the main thread.
     */
    static boolean separateServerThread = false;

    /*
     * Where do we find the keystores?
     */
    static String pathToStores = "../../../../../../../etc";
    static String keyStoreFile = "keystore";
    static String trustStoreFile = "truststore";
    static String passwd = "passphrase";

    /*
     * Is the server ready to serve?
     */
    volatile static boolean serverReady = false;

    /*
     * Turn on SSL debugging?
     */
    static boolean debug = false;

    /*
     * Define the server side of the test.
     */
    void doServerSide() throws Exception {
        SSLServerSocketFactory sslssf =
            (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
        SSLServerSocket sslServerSocket =
            (SSLServerSocket) sslssf.createServerSocket(serverPort);

        serverPort = sslServerSocket.getLocalPort();

        /*
         * Signal Client, we're ready for his connect.
         */
        serverReady = true;

        SSLSocket sslSocket = (SSLSocket) sslServerSocket.accept();
        InputStream sslIS = sslSocket.getInputStream();
        OutputStream sslOS = sslSocket.getOutputStream();

        // no read, no write.
        SSLSession sess = sslSocket.getSession();
        if (!sess.isValid()) {
            throw new Exception("Error occurs during the initial handshake");
        }

        sslIS.close();
        sslOS.close();
        sslSocket.close();
    }

    /*
     * Define the client side of the test.
     */
    void doClientSide() throws Exception {

        /*
         * Wait for server to get started.
         */
        while (!serverReady) {
            Thread.sleep(50);
        }

        SSLSocketFactory sslsf =
            (SSLSocketFactory) SSLSocketFactory.getDefault();
        SSLSocket sslSocket = (SSLSocket)
            sslsf.createSocket("localhost", serverPort);

        InputStream sslIS = sslSocket.getInputStream();
        OutputStream sslOS = sslSocket.getOutputStream();

        // read zero byte, write zero byte.
        sslIS.read(new byte[0], 0, 0);
        sslOS.write(new byte[0], 0, 0);

        // if byte array length matters.
        sslIS.read(new byte[1], 0, 0);
        sslOS.write(new byte[1], 0, 0);

        // note that the above read/write should not kickoff handshaking.
        SSLSession sess = sslSocket.getSession();
        if (!sess.isValid()) {
            throw new Exception("Error occurs during the initial handshake");
        }

        sslIS.close();
        sslOS.close();
        sslSocket.close();
    }

    /*
     * =============================================================
     * The remainder is just support stuff
     */

    // use any free port by default
    volatile int serverPort = 0;

    volatile Exception serverException = null;
    volatile Exception clientException = null;

    public static void main(String[] args) throws Exception {
        String keyFilename =
            System.getProperty("test.src", "./") + "/" + pathToStores +
                "/" + keyStoreFile;
        String trustFilename =
            System.getProperty("test.src", "./") + "/" + pathToStores +
                "/" + trustStoreFile;

        System.setProperty("javax.net.ssl.keyStore", keyFilename);
        System.setProperty("javax.net.ssl.keyStorePassword", passwd);
        System.setProperty("javax.net.ssl.trustStore", trustFilename);
        System.setProperty("javax.net.ssl.trustStorePassword", passwd);

        if (debug)
            System.setProperty("javax.net.debug", "all");

        /*
         * Start the tests.
         */
        new ReadZeroBytes();
    }

    Thread clientThread = null;
    Thread serverThread = null;

    /*
     * Primary constructor, used to drive remainder of the test.
     *
     * Fork off the other side, then do your work.
     */
    ReadZeroBytes () throws Exception {
        if (separateServerThread) {
            startServer(true);
            startClient(false);
        } else {
            startClient(true);
            startServer(false);
        }

        /*
         * Wait for other side to close down.
         */
        if (separateServerThread) {
            serverThread.join();
        } else {
            clientThread.join();
        }

        /*
         * When we get here, the test is pretty much over.
         *
         * If the main thread excepted, that propagates back
         * immediately.  If the other thread threw an exception, we
         * should report back.
         */
        if (serverException != null)
            throw serverException;
        if (clientException != null)
            throw clientException;
    }

    void startServer(boolean newThread) throws Exception {
        if (newThread) {
            serverThread = new Thread() {
                public void run() {
                    try {
                        doServerSide();
                    } catch (Exception e) {
                        /*
                         * Our server thread just died.
                         *
                         * Release the client, if not already active...
                         */
                        System.out.println("Server died...");
                        serverReady = true;
                        serverException = e;
                    }
                }
            };
            serverThread.start();
        } else {
            doServerSide();
        }
    }

    void startClient(boolean newThread) throws Exception {
        if (newThread) {
            clientThread = new Thread() {
                public void run() {
                    try {
                        doClientSide();
                    } catch (Exception e) {
                        /*
                         * Our client thread just died.
                         */
                        System.out.println("Client died...");
                        clientException = e;
                    }
                }
            };
            clientThread.start();
        } else {
            doClientSide();
        }
    }
}