home | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Java example source code file (TestHostnameVerifier.java)

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

Java tags/keywords

certificatefactory, cn=localhost, exception, inputstream, io, l=unknown, net, o=unknown, ou=unknown, ssl, sslexception, strict, string, testcase, testhostnameverifier, x509certificate, x509hostnameverifier

The TestHostnameVerifier.java example source code

/*
 * ====================================================================
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

package org.apache.http.conn.ssl;

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;

import javax.net.ssl.SSLException;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * Unit tests for {@link X509HostnameVerifier}.
 */
public class TestHostnameVerifier extends TestCase {

    public TestHostnameVerifier(String testName) {
        super(testName);
    }

    public static void main(String args[]) throws Exception {
        String[] testCaseName = { TestHostnameVerifier.class.getName() };
        junit.textui.TestRunner.main(testCaseName);
    }

    public static Test suite() {
        return new TestSuite(TestHostnameVerifier.class);
    }

    public void testVerify() throws Exception {
        X509HostnameVerifier DEFAULT = new BrowserCompatHostnameVerifier();
        X509HostnameVerifier STRICT = new StrictHostnameVerifier();
        X509HostnameVerifier ALLOW_ALL = new AllowAllHostnameVerifier();
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        InputStream in;
        X509Certificate x509;
        in = new ByteArrayInputStream(CertificatesToPlayWith.X509_FOO);
        x509 = (X509Certificate) cf.generateCertificate(in);

        DEFAULT.verify("foo.com", x509);
        STRICT.verify("foo.com", x509);
        exceptionPlease(DEFAULT, "a.foo.com", x509);
        exceptionPlease(STRICT, "a.foo.com", x509);
        exceptionPlease(DEFAULT, "bar.com", x509);
        exceptionPlease(STRICT, "bar.com", x509);
        ALLOW_ALL.verify("foo.com", x509);
        ALLOW_ALL.verify("a.foo.com", x509);
        ALLOW_ALL.verify("bar.com", x509);

        in = new ByteArrayInputStream(CertificatesToPlayWith.X509_HANAKO);
        x509 = (X509Certificate) cf.generateCertificate(in);
        DEFAULT.verify("\u82b1\u5b50.co.jp", x509);
        STRICT.verify("\u82b1\u5b50.co.jp", x509);
        exceptionPlease(DEFAULT, "a.\u82b1\u5b50.co.jp", x509);
        exceptionPlease(STRICT, "a.\u82b1\u5b50.co.jp", x509);

        in = new ByteArrayInputStream(CertificatesToPlayWith.X509_FOO_BAR);
        x509 = (X509Certificate) cf.generateCertificate(in);
        DEFAULT.verify("foo.com", x509);
        STRICT.verify("foo.com", x509);
        exceptionPlease(DEFAULT, "a.foo.com", x509);
        exceptionPlease(STRICT, "a.foo.com", x509);
        DEFAULT.verify("bar.com", x509);
        STRICT.verify("bar.com", x509);
        exceptionPlease(DEFAULT, "a.bar.com", x509);
        exceptionPlease(STRICT, "a.bar.com", x509);

        in = new ByteArrayInputStream(CertificatesToPlayWith.X509_FOO_BAR_HANAKO);
        x509 = (X509Certificate) cf.generateCertificate(in);
        DEFAULT.verify("foo.com", x509);
        STRICT.verify("foo.com", x509);
        exceptionPlease(DEFAULT, "a.foo.com", x509);
        exceptionPlease(STRICT, "a.foo.com", x509);
        DEFAULT.verify("bar.com", x509);
        STRICT.verify("bar.com", x509);
        exceptionPlease(DEFAULT, "a.bar.com", x509);
        exceptionPlease(STRICT, "a.bar.com", x509);

        /*
           Java isn't extracting international subjectAlts properly.  (Or
           OpenSSL isn't storing them properly).
        */
        // DEFAULT.verify("\u82b1\u5b50.co.jp", x509 );
        // STRICT.verify("\u82b1\u5b50.co.jp", x509 );
        exceptionPlease(DEFAULT, "a.\u82b1\u5b50.co.jp", x509);
        exceptionPlease(STRICT, "a.\u82b1\u5b50.co.jp", x509);

        in = new ByteArrayInputStream(CertificatesToPlayWith.X509_NO_CNS_FOO);
        x509 = (X509Certificate) cf.generateCertificate(in);
        DEFAULT.verify("foo.com", x509);
        STRICT.verify("foo.com", x509);
        exceptionPlease(DEFAULT, "a.foo.com", x509);
        exceptionPlease(STRICT, "a.foo.com", x509);

        in = new ByteArrayInputStream(CertificatesToPlayWith.X509_NO_CNS_FOO);
        x509 = (X509Certificate) cf.generateCertificate(in);
        DEFAULT.verify("foo.com", x509);
        STRICT.verify("foo.com", x509);
        exceptionPlease(DEFAULT, "a.foo.com", x509);
        exceptionPlease(STRICT, "a.foo.com", x509);

        in = new ByteArrayInputStream(CertificatesToPlayWith.X509_THREE_CNS_FOO_BAR_HANAKO);
        x509 = (X509Certificate) cf.generateCertificate(in);
        exceptionPlease(DEFAULT, "foo.com", x509);
        exceptionPlease(STRICT, "foo.com", x509);
        exceptionPlease(DEFAULT, "a.foo.com", x509);
        exceptionPlease(STRICT, "a.foo.com", x509);
        exceptionPlease(DEFAULT, "bar.com", x509);
        exceptionPlease(STRICT, "bar.com", x509);
        exceptionPlease(DEFAULT, "a.bar.com", x509);
        exceptionPlease(STRICT, "a.bar.com", x509);
        DEFAULT.verify("\u82b1\u5b50.co.jp", x509);
        STRICT.verify("\u82b1\u5b50.co.jp", x509);
        exceptionPlease(DEFAULT, "a.\u82b1\u5b50.co.jp", x509);
        exceptionPlease(STRICT, "a.\u82b1\u5b50.co.jp", x509);

        in = new ByteArrayInputStream(CertificatesToPlayWith.X509_WILD_FOO);
        x509 = (X509Certificate) cf.generateCertificate(in);
        exceptionPlease(DEFAULT, "foo.com", x509);
        exceptionPlease(STRICT, "foo.com", x509);
        DEFAULT.verify("www.foo.com", x509);
        STRICT.verify("www.foo.com", x509);
        DEFAULT.verify("\u82b1\u5b50.foo.com", x509);
        STRICT.verify("\u82b1\u5b50.foo.com", x509);
        DEFAULT.verify("a.b.foo.com", x509);
        exceptionPlease(STRICT, "a.b.foo.com", x509);

        in = new ByteArrayInputStream(CertificatesToPlayWith.X509_WILD_CO_JP);
        x509 = (X509Certificate) cf.generateCertificate(in);
        // Silly test because no-one would ever be able to lookup an IP address
        // using "*.co.jp".
        DEFAULT.verify("*.co.jp", x509);
        STRICT.verify("*.co.jp", x509);
        exceptionPlease(DEFAULT, "foo.co.jp", x509);
        exceptionPlease(STRICT, "foo.co.jp", x509);
        exceptionPlease(DEFAULT, "\u82b1\u5b50.co.jp", x509);
        exceptionPlease(STRICT, "\u82b1\u5b50.co.jp", x509);

        in = new ByteArrayInputStream(CertificatesToPlayWith.X509_WILD_FOO_BAR_HANAKO);
        x509 = (X509Certificate) cf.generateCertificate(in);
        // try the foo.com variations
        exceptionPlease(DEFAULT, "foo.com", x509);
        exceptionPlease(STRICT, "foo.com", x509);
        DEFAULT.verify("www.foo.com", x509);
        STRICT.verify("www.foo.com", x509);
        DEFAULT.verify("\u82b1\u5b50.foo.com", x509);
        STRICT.verify("\u82b1\u5b50.foo.com", x509);
        DEFAULT.verify("a.b.foo.com", x509);
        exceptionPlease(STRICT, "a.b.foo.com", x509);
        // try the bar.com variations
        exceptionPlease(DEFAULT, "bar.com", x509);
        exceptionPlease(STRICT, "bar.com", x509);
        DEFAULT.verify("www.bar.com", x509);
        STRICT.verify("www.bar.com", x509);
        DEFAULT.verify("\u82b1\u5b50.bar.com", x509);
        STRICT.verify("\u82b1\u5b50.bar.com", x509);
        DEFAULT.verify("a.b.bar.com", x509);
        exceptionPlease(STRICT, "a.b.bar.com", x509);
        // try the \u82b1\u5b50.co.jp variations
        /*
           Java isn't extracting international subjectAlts properly.  (Or
           OpenSSL isn't storing them properly).
        */
        //exceptionPlease( DEFAULT, "\u82b1\u5b50.co.jp", x509 );
        //exceptionPlease( STRICT, "\u82b1\u5b50.co.jp", x509 );
        //DEFAULT.verify("www.\u82b1\u5b50.co.jp", x509 );
        //STRICT.verify("www.\u82b1\u5b50.co.jp", x509 );
        //DEFAULT.verify("\u82b1\u5b50.\u82b1\u5b50.co.jp", x509 );
        //STRICT.verify("\u82b1\u5b50.\u82b1\u5b50.co.jp", x509 );
        //DEFAULT.verify("a.b.\u82b1\u5b50.co.jp", x509 );
        //exceptionPlease(STRICT,"a.b.\u82b1\u5b50.co.jp", x509 );
    }

    public void testSubjectAlt() throws Exception {
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        InputStream in = new ByteArrayInputStream(CertificatesToPlayWith.X509_MULTIPLE_SUBJECT_ALT);
        X509Certificate x509 = (X509Certificate) cf.generateCertificate(in);
        
        X509HostnameVerifier verifier = SSLSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER;
        
        assertEquals("CN=localhost, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=CH", 
                x509.getSubjectDN().getName());
        
        verifier.verify("localhost", x509);
        verifier.verify("localhost.localdomain", x509);
        verifier.verify("127.0.0.1", x509);
        
        try {
            verifier.verify("local.host", x509);
            fail("SSLException should have been thrown");
        } catch (SSLException ex) {
            // expected
        }
        try {
            verifier.verify("127.0.0.2", x509);
            fail("SSLException should have been thrown");
        } catch (SSLException ex) {
            // expected
        }
        
    }
    
    private void exceptionPlease(X509HostnameVerifier hv, String host,
                                 X509Certificate x509) {
        try {
            hv.verify(host, x509);
            fail("HostnameVerifier shouldn't allow [" + host + "]");
        }
        catch(SSLException e) {
            // whew!  we're okay!
        }
    }

}

Other Java examples (source code examples)

Here is a short list of links related to this Java TestHostnameVerifier.java source code file:



my book on functional programming

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.