View Javadoc

1   /***
2    * Redistribution and use of this software and associated documentation
3    * ("Software"), with or without modification, are permitted provided
4    * that the following conditions are met:
5    *
6    * 1. Redistributions of source code must retain copyright
7    *    statements and notices.  Redistributions must also contain a
8    *    copy of this document.
9    *
10   * 2. Redistributions in binary form must reproduce the
11   *    above copyright notice, this list of conditions and the
12   *    following disclaimer in the documentation and/or other
13   *    materials provided with the distribution.
14   *
15   * 3. The name "Exolab" must not be used to endorse or promote
16   *    products derived from this Software without prior written
17   *    permission of Exoffice Technologies.  For written permission,
18   *    please contact info@exolab.org.
19   *
20   * 4. Products derived from this Software may not be called "Exolab"
21   *    nor may "Exolab" appear in their names without prior written
22   *    permission of Exoffice Technologies. Exolab is a registered
23   *    trademark of Exoffice Technologies.
24   *
25   * 5. Due credit should be given to the Exolab Project
26   *    (http://www.exolab.org/).
27   *
28   * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29   * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30   * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
32   * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39   * OF THE POSSIBILITY OF SUCH DAMAGE.
40   *
41   * Copyright 2005 (C) Exoffice Technologies Inc. All Rights Reserved.
42   *
43   * $Id: SSLHelper.java,v 1.3 2005/07/22 23:38:04 tanderson Exp $
44   */
45  package org.exolab.jms.net.util;
46  
47  import java.util.Properties;
48  
49  
50  /***
51   * Helper class for configuring the secure socket layer (SSL).
52   *
53   * @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a>
54   * @version $Revision: 1.3 $
55   */
56  public class SSLHelper {
57  
58      /***
59       * System property to indicate the keystore to use.
60       */
61      public static final String KEY_STORE = "javax.net.ssl.keyStore";
62  
63      /***
64       * System property to indicate the keystore type.
65       */
66      public static final String KEY_STORE_TYPE
67              = "javax.net.ssl.keyStoreType";
68  
69      /***
70       * System property to indicate the keystore password.
71       */
72      public static final String KEY_STORE_PASSWORD
73              = "javax.net.ssl.keyStorePassword";
74  
75      /***
76       * System property to indicate the truststore to use.
77       */
78      public static final String TRUST_STORE = "javax.net.ssl.trustStore";
79  
80      /***
81       * System property to indicate the truststore password.
82       */
83      public static final String TRUST_STORE_PASSWORD
84              = "javax.net.ssl.trustStorePassword";
85  
86      /***
87       * System property to indicate the truststore type.
88       */
89      public static final String TRUST_STORE_TYPE
90              = "javax.net.ssl.trustStoreType";
91  
92      /***
93       * Configure the secure socket layer.
94       * <p/>
95       * This sets system properties corresponding to those specified by
96       * <code>properties</code>
97       *
98       * @param properties the properties to use
99       * @throws SecurityException if the security manager doesn't allow a
100      *                           property to be updated.
101      */
102     public static void configure(SSLProperties properties)
103             throws SecurityException {
104         update(KEY_STORE, properties.getKeyStore());
105         update(KEY_STORE_PASSWORD, properties.getKeyStorePassword());
106         update(KEY_STORE_TYPE, properties.getKeyStoreType());
107         update(TRUST_STORE, properties.getTrustStore());
108         update(TRUST_STORE_PASSWORD, properties.getTrustStorePassword());
109         update(TRUST_STORE_TYPE,  properties.getTrustStoreType());
110     }
111 
112     /***
113      * Update a system property, setting it if the corresponding value isn't
114      * null, or removing it if it is.
115      *
116      * @param key   the property name
117      * @param value the property value
118      * @throws SecurityException if the security manager doesn't allow a
119      *                           property to be updated.
120      */
121     private static void update(String key, String value)
122         throws SecurityException {
123         if (value != null) {
124             System.setProperty(key, value);
125         } else if (System.getProperty(key) != null) {
126             Properties properties = System.getProperties();
127             properties.remove(key);
128         }
129     }
130 }