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Java example source code file (Parse.java)

This example Java source code file (Parse.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

begin, cdpextbytes, certificate, certificate\-\-\-\-\-\\n, crldistributionpointsextension, crldistributionpointsextensiontest, dervalue, end, illegally, ioexception, runtimeexception, string, uriname, x509certificate

The Parse.java Java example source code

/*
 * Copyright (c) 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.
 */

/*
 * @test
 * @bug 8005389
 * @summary CRL Distribution Point URIs with spaces or backslashes should
 *          not be parseable
 */
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import sun.security.util.DerValue;
import sun.security.x509.CRLDistributionPointsExtension;
import sun.security.x509.URIName;


public class Parse {

    // certificate with a space in the CRLDistributionPointsExtension uri
    // uri: file://crl file.crl
    static String certWithSpaceInCDPStr =
        "-----BEGIN CERTIFICATE-----\n" +
        "MIIB8DCCAVmgAwIBAgIJAOgNnYA5nHtQMA0GCSqGSIb3DQEBBQUAMCUxETAPBgNV\n" +
        "BAMTCHRlc3RuYW1lMRAwDgYDVQQLEwd0ZXN0b3JnMB4XDTEyMDgxMzIzMzgzN1oX\n" +
        "DTEyMDkxMjIzMzgzN1owJTERMA8GA1UEAxMIdGVzdG5hbWUxEDAOBgNVBAsTB3Rl\n" +
        "c3RvcmcwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBANx02RuD/Y2pvgVnXBbJ\n" +
        "Sb+8j80geuoYEyRRnP6YiL2wmZqMmTHuznFwosO57KoVbz/XEr1bOnBMnPKax5Ll\n" +
        "QlDI3nmnxmUq13ORQ6GkD3M+QRzzxc66BFJbKqUzgv1P3NngyIFr03zb/opXdCTZ\n" +
        "4WfJuCf7Ouz44Ch6ZGQJ+7G5AgMBAAGjKDAmMCQGA1UdHwQdMBswGaAXoBWGE2Zp\n" +
        "bGU6Ly9jcmwgZmlsZS5jcmwwDQYJKoZIhvcNAQEFBQADgYEAB+ublc1l1EnXtEJE\n" +
        "jYeFzAdttHKQ4mn8CXGtHSy9gpckKyLdZUc9/n6yKuNXih29faepZ8mtaftTYpgR\n" +
        "AUqZ+6YYik+rIqZpnWMPR9qZvshf/KPerXiZe7kYBKNvxgmCFfhK8QN6nxUGrR2F\n" +
        "d53HWct6zXqlj+vQZsGC30f764M=\n" +
        "-----END CERTIFICATE-----";

    // a certificate with backslashes in the CRLDistributionPointsExtension uri
    // uri: file://\\\\CRL\\crl_file.crl
    static String certWithBackslashesInCDPStr =
        "-----BEGIN CERTIFICATE-----\n" +
        "MIIB9jCCAV+gAwIBAgIJAOQV9wTIgnc1MA0GCSqGSIb3DQEBBQUAMCUxETAPBgNV\n" +
        "BAMTCHRlc3RuYW1lMRAwDgYDVQQLEwd0ZXN0b3JnMB4XDTEyMDgxMzIzMzcxM1oX\n" +
        "DTEyMDkxMjIzMzcxM1owJTERMA8GA1UEAxMIdGVzdG5hbWUxEDAOBgNVBAsTB3Rl\n" +
        "c3RvcmcwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBALdtczqZqI6RI17mz58/\n" +
        "PgFNBmb/dX/MeVcuaUp79RVUbDQ68z4JxDNv4ImcAxigKXb2jObPAxOdM+VlXROS\n" +
        "AmUNgYrIPuHNnKbd+rwilc6DsGWZnZLmZE63fUvTSqjOnSlsENSgDBVL/4r+yWBB\n" +
        "8KKmFGRFqkCyN1EZl03IW9i7AgMBAAGjLjAsMCoGA1UdHwQjMCEwH6AdoBuGGWZp\n" +
        "bGU6Ly9cXENSTFxjcmxfZmlsZS5jcmwwDQYJKoZIhvcNAQEFBQADgYEACOgZEaST\n" +
        "BCFQVeXZ5d8J3dUZ+wRRkPvrlvopxMtZb3Hyte78PNoIZ78f1gYL18HiGYwKttau\n" +
        "DyPp1lrG9xKPfIeKg+aDWTtVE7pexB4qCryID0+kJfdNzkdIgdGJzJ/RmfJ5heMF\n" +
        "+R46Mhpua4c6gGsE2NGBFxmtS3YHpQsKtz8=\n" +
        "-----END CERTIFICATE-----";

    /*
     * Create an X509Certificate then attempt to construct a
     * CRLDistributionPointsExtension object from its extension value bytes.
     */
    private static void CRLDistributionPointsExtensionTest(String certStr)
            throws Exception {
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        ByteArrayInputStream is = new ByteArrayInputStream(certStr.getBytes());
        X509Certificate cert = (X509Certificate) cf.generateCertificate(is);

        // oid for CRL Distribution Points = 2.5.29.31
        byte[] CDPExtBytes = cert.getExtensionValue("2.5.29.31");
        DerValue val = new DerValue(CDPExtBytes);
        byte[] data = val.getOctetString();
        CRLDistributionPointsExtension CDPExt
                = new CRLDistributionPointsExtension(false, data);
    }

    public static void main(String[] args) throws Exception {
        /* Try to parse a CRLDistributionPointsExtension URI with a space. */
        try {
            CRLDistributionPointsExtensionTest(certWithSpaceInCDPStr);
            throw new RuntimeException("Illegally parsed a "
                    + "CRLDistributionPointsExtension uri with a space.");
        } catch (IOException e) {
            System.out.println("Caught the correct exception.");

        }

        /* Try to parse a CRLDistributionPointsExtension URI with backslashes. */
        try {
            CRLDistributionPointsExtensionTest(certWithBackslashesInCDPStr);
            throw new RuntimeException("Illegally parsed a "
                    + "CRLDistributionPointsExtension uri with a backslashes.");
        } catch (IOException e) {
            System.out.println("Caught the correct exception.");
        }

        /* Try to construct a URIName from a uri with a space. */
        String uriWithSpace = "file://crl file.crl";
        URIName name;
        try {
            name = new URIName(uriWithSpace);
            throw new RuntimeException("Illegally created a URIName "
                    + "from a uri with a space.");
        } catch (IOException e) {
            System.out.println("Caught the correct exception.");
        }

        /* Try to construct a URIName from a uri with backslashes. */
        String uriWithBackslashes = "file://\\\\CRL\\crl_file.crl";
        try {
            name = new URIName(uriWithBackslashes);
            throw new RuntimeException("Illegally created a URIName "
                    + "from a uri with backslashes.");
        } catch (IOException e) {
            System.out.println("Caught the correct exception.");
        }

        System.out.println("Tests passed.");
    }
}

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