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Java example source code file (testEnabledProtocols.java)

This example Java source code file (testEnabledProtocols.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

exception, inputstream, net, network, outputstream, runtimeexception, security, ssl, sslhandshakeexception, sslserversocket, sslserversocketfactory, sslsession, sslsocket, sslv2hello, sslv3, string, thread, tlsv1, util

The testEnabledProtocols.java Java example source code

/*
 * Copyright (c) 2001, 2011, 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 4416068 4478803 4479736
 * @summary 4273544 JSSE request for function forceV3ClientHello()
 *          4479736 setEnabledProtocols API does not work correctly
 *          4478803 Need APIs to determine the protocol versions used in an SSL
 *                  session
 *          4701722 protocol mismatch exceptions should be consistent between
 *                  SSLv3 and TLSv1
 * @run main/othervm testEnabledProtocols
 *
 *     SunJSSE does not support dynamic system properties, no way to re-use
 *     system properties in samevm/agentvm mode.
 * @author Ram Marti
 */

import java.io.*;
import java.net.*;
import java.util.*;
import java.security.*;
import javax.net.ssl.*;
import java.security.cert.*;

public class testEnabledProtocols {

    /*
     * For each of the valid protocols combinations, start a server thread
     * that sets up an SSLServerSocket supporting that protocol. Then run
     * a client thread that attemps to open a connection with all
     * possible protocol combinataion.  Verify that we get handshake
     * exceptions correctly. Whenever the connection is established
     * successfully, verify that the negotiated protocol was correct.
     * See results file in this directory for complete results.
     */

    static final String[][] protocolStrings = {
                                {"TLSv1"},
                                {"TLSv1", "SSLv2Hello"},
                                {"TLSv1", "SSLv3"},
                                {"SSLv3", "SSLv2Hello"},
                                {"SSLv3"},
                                {"TLSv1", "SSLv3", "SSLv2Hello"}
                                };

    static final boolean [][] eXceptionArray = {
        // Do we expect exception?       Protocols supported by the server
        { false, true,  false, true,  true,  true }, // TLSv1
        { false, false, false, true,  true,  false}, // TLSv1,SSLv2Hello
        { false, true,  false, true,  false, true }, // TLSv1,SSLv3
        { true,  true,  false, false, false, false}, // SSLv3, SSLv2Hello
        { true,  true,  false, true,  false, true }, // SSLv3
        { false, false, false, false, false, false } // TLSv1,SSLv3,SSLv2Hello
        };

    static final String[][] protocolSelected = {
        // TLSv1
        { "TLSv1",  null,   "TLSv1",  null,   null,     null },

        // TLSv1,SSLv2Hello
        { "TLSv1", "TLSv1", "TLSv1",  null,   null,    "TLSv1"},

        // TLSv1,SSLv3
        { "TLSv1",  null,   "TLSv1",  null,   "SSLv3",  null },

        // SSLv3, SSLv2Hello
        {  null,    null,   "SSLv3", "SSLv3", "SSLv3",  "SSLv3"},

        // SSLv3
        {  null,    null,   "SSLv3",  null,   "SSLv3",  null },

        // TLSv1,SSLv3,SSLv2Hello
        { "TLSv1", "TLSv1", "TLSv1", "SSLv3", "SSLv3", "TLSv1" }

    };

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

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

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

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

    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");

        new testEnabledProtocols();
    }

    testEnabledProtocols() throws Exception  {
        /*
         * Start the tests.
         */
        SSLServerSocketFactory sslssf =
            (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
        SSLServerSocket sslServerSocket =
            (SSLServerSocket) sslssf.createServerSocket(serverPort);
        serverPort = sslServerSocket.getLocalPort();
        // sslServerSocket.setNeedClientAuth(true);

        for (int i = 0; i < protocolStrings.length; i++) {
            String [] serverProtocols = protocolStrings[i];
            startServer ss = new startServer(serverProtocols,
                sslServerSocket, protocolStrings.length);
            ss.setDaemon(true);
            ss.start();
            for (int j = 0; j < protocolStrings.length; j++) {
                String [] clientProtocols = protocolStrings[j];
                startClient sc = new startClient(
                    clientProtocols, serverProtocols,
                    eXceptionArray[i][j], protocolSelected[i][j]);
                sc.start();
                sc.join();
                if (clientException != null) {
                    ss.requestStop();
                    throw clientException;
                }
            }
            ss.requestStop();
            System.out.println("Waiting for the server to complete");
            ss.join();
        }
    }

    class startServer extends Thread  {
        private String[] enabledP = null;
        SSLServerSocket sslServerSocket = null;
        int numExpConns;
        volatile boolean stopRequested = false;

        public startServer(String[] enabledProtocols,
                            SSLServerSocket sslServerSocket,
                            int numExpConns) {
            super("Server Thread");
            serverReady = false;
            enabledP = enabledProtocols;
            this.sslServerSocket = sslServerSocket;
            sslServerSocket.setEnabledProtocols(enabledP);
            this.numExpConns = numExpConns;
        }

        public void requestStop() {
            stopRequested = true;
        }

        public void run() {
            int conns = 0;
            while (!stopRequested) {
                SSLSocket socket = null;
                try {
                    serverReady = true;
                    socket = (SSLSocket)sslServerSocket.accept();
                    conns++;

                    // set ready to false. this is just to make the
                    // client wait and synchronise exception messages
                    serverReady = false;
                    socket.startHandshake();
                    SSLSession session = socket.getSession();
                    session.invalidate();

                    InputStream in = socket.getInputStream();
                    OutputStream out = socket.getOutputStream();
                    out.write(280);
                    in.read();

                    socket.close();
                    // sleep for a while so that the server thread can be
                    // stopped
                    Thread.sleep(30);
                } catch (SSLHandshakeException se) {
                    // ignore it; this is part of the testing
                    // log it for debugging
                    System.out.println("Server SSLHandshakeException:");
                    se.printStackTrace(System.out);
                } catch (java.io.InterruptedIOException ioe) {
                    // must have been interrupted, no harm
                    break;
                } catch (java.lang.InterruptedException ie) {
                    // must have been interrupted, no harm
                    break;
                } catch (Exception e) {
                    System.out.println("Server exception:");
                    e.printStackTrace(System.out);
                    throw new RuntimeException(e);
                } finally {
                    try {
                        if (socket != null) {
                            socket.close();
                        }
                    } catch (IOException e) {
                        // ignore
                    }
                }
                if (conns >= numExpConns) {
                    break;
                }
            }
        }
    }

    private static void showProtocols(String name, String[] protocols) {
        System.out.println("Enabled protocols on the " + name + " are: " + Arrays.asList(protocols));
    }

    class startClient extends Thread {
        boolean hsCompleted = false;
        boolean exceptionExpected = false;
        private String[] enabledP = null;
        private String[] serverP = null; // used to print the result
        private String protocolToUse = null;

        startClient(String[] enabledProtocol,
                    String[] serverP,
                    boolean eXception,
                    String protocol) throws Exception {
            super("Client Thread");
            this.enabledP = enabledProtocol;
            this.serverP = serverP;
            this.exceptionExpected = eXception;
            this.protocolToUse = protocol;
        }

        public void run() {
            SSLSocket sslSocket = null;
            try {
                while (!serverReady) {
                    Thread.sleep(50);
                }
                System.out.flush();
                System.out.println("=== Starting new test run ===");
                showProtocols("server", serverP);
                showProtocols("client", enabledP);

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

                SSLSession session = sslSocket.getSession();
                session.invalidate();
                String protocolName = session.getProtocol();
                System.out.println("Protocol name after getSession is " +
                    protocolName);

                if (protocolName.equals(protocolToUse)) {
                    System.out.println("** Success **");
                } else {
                    System.out.println("** FAILURE ** ");
                    throw new RuntimeException
                        ("expected protocol " + protocolToUse +
                         " but using " + protocolName);
                }

                InputStream in = sslSocket.getInputStream();
                OutputStream out = sslSocket.getOutputStream();
                in.read();
                out.write(280);

                sslSocket.close();

            } catch (SSLHandshakeException e) {
                if (!exceptionExpected) {
                    System.out.println("Client got UNEXPECTED SSLHandshakeException:");
                    e.printStackTrace(System.out);
                    System.out.println("** FAILURE **");
                    clientException = e;
                } else {
                    System.out.println("Client got expected SSLHandshakeException:");
                    e.printStackTrace(System.out);
                    System.out.println("** Success **");
                }
            } catch (RuntimeException e) {
                clientException = e;
            } catch (Exception e) {
                System.out.println("Client got UNEXPECTED Exception:");
                e.printStackTrace(System.out);
                System.out.println("** FAILURE **");
                clientException = e;
            }
        }
    }

}

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