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