1 /* CertificateEntry.java --
2    Copyright (C) 2003, 2006 Free Software Foundation, Inc.
3 
4 This file is a part of GNU Classpath.
5 
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or (at
9 your option) any later version.
10 
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 General Public License for more details.
15 
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
19 USA
20 
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library.  Thus, the terms and
23 conditions of the GNU General Public License cover the whole
24 combination.
25 
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module.  An independent module is a module which is not derived from
33 or based on this library.  If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so.  If you do not wish to do so, delete this
36 exception statement from your version.  */
37 
38 
39 package gnu.javax.crypto.keyring;
40 
41 import java.io.DataInputStream;
42 import java.io.IOException;
43 import java.security.cert.Certificate;
44 import java.security.cert.CertificateEncodingException;
45 import java.security.cert.CertificateException;
46 import java.security.cert.CertificateFactory;
47 import java.util.Date;
48 
49 /**
50  * An immutable class representing a trusted certificate entry.
51  */
52 public final class CertificateEntry
53     extends PrimitiveEntry
54 {
55   public static final int TYPE = 5;
56   /** The certificate. */
57   private Certificate certificate;
58 
59   /**
60    * Creates a new certificate entry.
61    *
62    * @param certificate The certificate.
63    * @param creationDate The creation date.
64    * @param properties The alias.
65    * @throws IllegalArgumentException If any argument is null, or if the alias
66    *           is empty.
67    */
CertificateEntry(Certificate certificate, Date creationDate, Properties properties)68   public CertificateEntry(Certificate certificate, Date creationDate,
69                           Properties properties)
70   {
71     super(TYPE, creationDate, properties);
72     if (certificate == null)
73       throw new IllegalArgumentException("no certificate");
74     this.certificate = certificate;
75     this.properties.put("type", certificate.getType());
76   }
77 
CertificateEntry()78   private CertificateEntry()
79   {
80     super(TYPE);
81   }
82 
decode(DataInputStream in)83   public static CertificateEntry decode(DataInputStream in) throws IOException
84   {
85     CertificateEntry entry = new CertificateEntry();
86     entry.properties.decode(in);
87     entry.makeCreationDate();
88     String type = entry.properties.get("type");
89     if (type == null)
90       throw new MalformedKeyringException("no certificate type");
91     int len = in.readInt();
92     MeteredInputStream in2 = new MeteredInputStream(in, len);
93     try
94       {
95         CertificateFactory fact = CertificateFactory.getInstance(type);
96         entry.certificate = fact.generateCertificate(in2);
97       }
98     catch (CertificateException ce)
99       {
100         throw new MalformedKeyringException(ce.toString());
101       }
102     if (! in2.limitReached())
103       throw new MalformedKeyringException("extra data at end of payload");
104     return entry;
105   }
106 
107   /**
108    * Returns this entry's certificate.
109    *
110    * @return The certificate.
111    */
getCertificate()112   public Certificate getCertificate()
113   {
114     return certificate;
115   }
116 
encodePayload()117   protected void encodePayload() throws IOException
118   {
119     try
120       {
121         payload = certificate.getEncoded();
122       }
123     catch (CertificateEncodingException cee)
124       {
125         throw new IOException(cee.toString());
126       }
127   }
128 }
129