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Java example source code file (CloseInboundException.java)

This example Java source code file (CloseInboundException.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

bytebuffer, closeinboundexception, exception, fileinputstream, i\'m, jks, keystore, net, nio, security, ssl, sslcontext, sslengine, sslengine2, sslengineresult, sslexception, string, sunx509

The CloseInboundException.java Java example source code

/*
 * Copyright (c) 2003, 2013, 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.
 */

//
// SunJSSE does not support dynamic system properties, no way to re-use
// system properties in samevm/agentvm mode.
//

/*
 * @test
 * @bug 4931274
 * @summary closeInbound does not signal when a close_notify has not
 *              been received.
 * @run main/othervm CloseInboundException
 * @author Brad Wetmore
 */

import javax.net.ssl.*;
import javax.net.ssl.SSLEngineResult.*;
import java.io.*;
import java.security.*;
import java.nio.*;

public class CloseInboundException {

    private SSLEngine ssle1;    // client
    private SSLEngine ssle2;    // server

    SSLEngineResult result1;    // ssle1's results from last operation
    SSLEngineResult result2;    // ssle2's results from last operation

    private static String pathToStores = "../../../../../../../etc";
    private static String keyStoreFile = "keystore";
    private static String trustStoreFile = "truststore";
    private static String passwd = "passphrase";

    private static String keyFilename =
            System.getProperty("test.src", "./") + "/" + pathToStores +
                "/" + keyStoreFile;
    private static String trustFilename =
            System.getProperty("test.src", "./") + "/" + pathToStores +
                "/" + trustStoreFile;

    private ByteBuffer appOut1;         // write side of ssle1
    private ByteBuffer appIn1;          // read side of ssle1
    private ByteBuffer appOut2;         // write side of ssle2
    private ByteBuffer appIn2;          // read side of ssle2

    private ByteBuffer oneToTwo;        // "reliable" transport ssle1->ssle2
    private ByteBuffer twoToOne;        // "reliable" transport ssle2->ssle1

    /*
     * Majority of the test case is here, setup is done below.
     */
    private void runTest(boolean inboundClose) throws Exception {

        boolean done = false;

        while (!isEngineClosed(ssle1) || !isEngineClosed(ssle2)) {

            System.out.println("================");

            result1 = ssle1.wrap(appOut1, oneToTwo);
            result2 = ssle2.wrap(appOut2, twoToOne);

            System.out.println("wrap1 = " + result1);
            System.out.println("oneToTwo  = " + oneToTwo);

            System.out.println("wrap2 = " + result2);
            System.out.println("twoToOne  = " + twoToOne);

            runDelegatedTasks(result1, ssle1);
            runDelegatedTasks(result2, ssle2);

            oneToTwo.flip();
            twoToOne.flip();

            System.out.println("----");
            result1 = ssle1.unwrap(twoToOne, appIn1);

            if (done && inboundClose) {
                try {
                    result2 = ssle2.unwrap(oneToTwo, appIn2);
                    throw new Exception("Didn't throw Exception");
                } catch (SSLException e) {
                    System.out.println("Caught proper exception\n" + e);
                    return;
                }
            } else {
                result2 = ssle2.unwrap(oneToTwo, appIn2);
            }

            System.out.println("unwrap1 = " + result1);
            System.out.println("twoToOne  = " + twoToOne);

            System.out.println("unwrap2 = " + result2);
            System.out.println("oneToTwo  = " + oneToTwo);

            runDelegatedTasks(result1, ssle1);
            runDelegatedTasks(result2, ssle2);

            oneToTwo.compact();
            twoToOne.compact();

            /*
             * If we've transfered all the data between app1 and app2,
             * we try to close and see what that gets us.
             */
            if (!done && (appOut1.limit() == appIn2.position()) &&
                (appOut2.limit() == appIn1.position())) {

                if (inboundClose) {
                    try {
                        System.out.println("Closing ssle1's *INBOUND*...");
                        ssle1.closeInbound();
                        throw new Exception("closeInbound didn't throw");
                    } catch (SSLException e) {
                        System.out.println("Caught closeInbound exc properly");
                        checkStatus();
                        /*
                         * Let the message processing continue to
                         * handle the alert.
                         */
                    }
                    done = true;
                } else {
                    done = true;
                    System.out.println("Closing ssle1's *OUTBOUND*...");
                    ssle1.closeOutbound();
                }
            }
        }
    }

    /*
     * Check to see if the close generated a close_notify message,
     * that the result status is sane, and that close again doesn't
     * generate a new exception.
     *
     * We'll consume the wrapped data when we loop back around.
     */
    private void checkStatus() throws Exception {
        System.out.println("\nCalling last wrap");
        int pos = oneToTwo.position();

        result1 = ssle1.wrap(appOut1, oneToTwo);
        System.out.println("result1 = " + result1);

        if ((pos >= oneToTwo.position()) ||
                !result1.getStatus().equals(Status.CLOSED) ||
                !result1.getHandshakeStatus().equals(
                    HandshakeStatus.NOT_HANDSHAKING) ||
                !ssle1.isOutboundDone() ||
                !ssle1.isInboundDone()) {
            throw new Exception(result1.toString());
        }
        System.out.println("Make sure we don't throw a second SSLException.");
        ssle1.closeInbound();
    }

    public static void main(String args[]) throws Exception {

        CloseInboundException test;

        test = new CloseInboundException();
        test.runTest(false);

        test = new CloseInboundException();
        test.runTest(true);
        System.out.println("Test PASSED!!!");
    }

    /*
     * **********************************************************
     * Majority of the test case is above, below is just setup stuff
     * **********************************************************
     */

    public CloseInboundException() throws Exception {

        SSLContext sslc = getSSLContext(keyFilename, trustFilename);

        ssle1 = sslc.createSSLEngine("host1", 1);
        ssle1.setUseClientMode(true);

        ssle2 = sslc.createSSLEngine("host2", 2);
        ssle2.setUseClientMode(false);

        createBuffers();
    }

    /*
     * Create an initialized SSLContext to use for this test.
     */
    private SSLContext getSSLContext(String keyFile, String trustFile)
            throws Exception {

        KeyStore ks = KeyStore.getInstance("JKS");
        KeyStore ts = KeyStore.getInstance("JKS");

        char[] passphrase = "passphrase".toCharArray();

        ks.load(new FileInputStream(keyFile), passphrase);
        ts.load(new FileInputStream(trustFile), passphrase);

        KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
        kmf.init(ks, passphrase);

        TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");
        tmf.init(ts);

        SSLContext sslCtx = SSLContext.getInstance("TLS");

        sslCtx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);

        return sslCtx;
    }

    private void createBuffers() {
        // Size the buffers as appropriate.
        SSLSession session = ssle1.getSession();
        int appBufferMax = session.getApplicationBufferSize();
        int netBufferMax = session.getPacketBufferSize();

        appIn1 = ByteBuffer.allocateDirect(appBufferMax + 50);
        appIn2 = ByteBuffer.allocateDirect(appBufferMax + 50);

        oneToTwo = ByteBuffer.allocateDirect(netBufferMax);
        twoToOne = ByteBuffer.allocateDirect(netBufferMax);

        appOut1 = ByteBuffer.wrap("Hi Engine2, I'm SSLEngine1".getBytes());
        appOut2 = ByteBuffer.wrap("Hello Engine1, I'm SSLEngine2".getBytes());

        System.out.println("AppOut1 = " + appOut1);
        System.out.println("AppOut2 = " + appOut2);
        System.out.println();
    }

    private static void runDelegatedTasks(SSLEngineResult result,
            SSLEngine engine) throws Exception {

        if (result.getHandshakeStatus().equals(HandshakeStatus.NEED_TASK)) {
            Runnable runnable;
            while ((runnable = engine.getDelegatedTask()) != null) {
                System.out.println("running delegated task...");
                runnable.run();
            }
        }
    }

    private static boolean isEngineClosed(SSLEngine engine) {
        return (engine.isOutboundDone() && engine.isInboundDone());
    }

}

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