/*

 * Copyright (c) 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.

 *

 * 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

 * @run main/othervm -Djavax.net.debug=ssl RenegotiateTLS13

 */

import javax.net.ssl.KeyManagerFactory;

import javax.net.ssl.SSLContext;

import javax.net.ssl.SSLServerSocket;

import javax.net.ssl.SSLServerSocketFactory;

import javax.net.ssl.SSLSocket;

import javax.net.ssl.SSLSocketFactory;

import javax.net.ssl.TrustManagerFactory;

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.File;

import java.io.IOException;

import java.security.KeyStore;

import java.security.SecureRandom;

public class RenegotiateTLS13 {

    static final String dataString = "This is a test";

    // Run the server as a thread instead of the client

    static boolean separateServerThread = false;

    static String pathToStores = "../etc";

    static String keyStoreFile = "keystore";

    static String trustStoreFile = "truststore";

    static String passwd = "passphrase";

    // Server ready flag

    volatile static boolean serverReady = false;

    // Turn on SSL debugging

    static boolean debug = false;

    // Server done flag

    static boolean done = false;

    // Main server code

    void doServerSide() throws Exception {

        SSLServerSocketFactory sslssf;

            sslssf = initContext().getServerSocketFactory();

        SSLServerSocket sslServerSocket =

            (SSLServerSocket) sslssf.createServerSocket(serverPort);

        serverPort = sslServerSocket.getLocalPort();

        serverReady = true;

        SSLSocket sslSocket = (SSLSocket) sslServerSocket.accept();

        DataInputStream sslIS =

            new DataInputStream(sslSocket.getInputStream());

        String s = "";

        while (s.compareTo("done") != 0) {

            try {

                s = sslIS.readUTF();

                System.out.println("Received: " + s);

            } catch (IOException e) {

                throw e;

            }

        }

        done = true;

        sslSocket.close();

    }

    // Main client code

    void doClientSide() throws Exception {

        while (!serverReady) {

            Thread.sleep(5);

        }

        SSLSocketFactory sslsf;

        sslsf = initContext().getSocketFactory();

        SSLSocket sslSocket = (SSLSocket)

            sslsf.createSocket("localhost", serverPort);

        DataOutputStream sslOS =

            new DataOutputStream(sslSocket.getOutputStream());

        sslOS.writeUTF("With " + dataString);

        sslOS.writeUTF("With " + dataString);

        sslOS.writeUTF("With " + dataString);

        sslSocket.startHandshake();

        sslOS.writeUTF("With " + dataString);

        sslOS.writeUTF("With " + dataString);

        sslOS.writeUTF("With " + dataString);

        sslSocket.startHandshake();

        sslOS.writeUTF("With " + dataString);

        sslOS.writeUTF("With " + dataString);

        sslOS.writeUTF("With " + dataString);

        sslOS.writeUTF("done");

        while (!done) {

            Thread.sleep(5);

        }

        sslSocket.close();

    }

    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", "ssl");

        new RenegotiateTLS13();

    }

    Thread clientThread = null;

    Thread serverThread = null;

    /*

     * Primary constructor, used to drive remainder of the test.

     *

     * Fork off the other side, then do your work.

     */

    RenegotiateTLS13() throws Exception {

        try {

            if (separateServerThread) {

                startServer(true);

                startClient(false);

            } else {

                startClient(true);

                startServer(false);

            }

        } catch (Exception e) {

            // swallow for now.  Show later

        }

        /*

         * Wait for other side to close down.

         */

        if (separateServerThread) {

            serverThread.join();

        } else {

            clientThread.join();

        }

        /*

         * When we get here, the test is pretty much over.

         * Which side threw the error?

         */

        Exception local;

        Exception remote;

        String whichRemote;

        if (separateServerThread) {

            remote = serverException;

            local = clientException;

            whichRemote = "server";

        } else {

            remote = clientException;

            local = serverException;

            whichRemote = "client";

        }

        /*

         * If both failed, return the curthread's exception, but also

         * print the remote side Exception

         */

        if ((local != null) && (remote != null)) {

            System.out.println(whichRemote + " also threw:");

            remote.printStackTrace();

            System.out.println();

            throw local;

        }

        if (remote != null) {

            throw remote;

        }

        if (local != null) {

            throw local;

        }

    }

    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 active already...

                         */

                        System.err.println("Server died...");

                        serverReady = true;

                        serverException = e;

                    }

                }

            };

            serverThread.start();

        } else {

            try {

                doServerSide();

            } catch (Exception e) {

                serverException = e;

            } finally {

                serverReady = true;

            }

        }

    }

    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.err.println("Client died...");

                        clientException = e;

                    }

                }

            };

            clientThread.start();

        } else {

            try {

                doClientSide();

            } catch (Exception e) {

                clientException = e;

            }

        }

    }

    // Initialize context for TLS 1.3

    SSLContext initContext() throws Exception {

        System.out.println("Using TLS13");

        SSLContext sc = SSLContext.getInstance("TLSv1.3");

        KeyStore ks = KeyStore.getInstance(

                new File(System.getProperty("javax.net.ssl.keyStore")),

                passwd.toCharArray());

        KeyManagerFactory kmf = KeyManagerFactory.getInstance(

                KeyManagerFactory.getDefaultAlgorithm());

        kmf.init(ks, passwd.toCharArray());

        TrustManagerFactory tmf = TrustManagerFactory.getInstance(

                TrustManagerFactory.getDefaultAlgorithm());

        tmf.init(ks);

        sc.init(kmf.getKeyManagers(), tmf.getTrustManagers(), new SecureRandom());

        return sc;

    }

}