J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 3 | * |
| 4 | * This code is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License version 2 only, as |
| 6 | * published by the Free Software Foundation. Sun designates this |
| 7 | * particular file as subject to the "Classpath" exception as provided |
| 8 | * by Sun in the LICENSE file that accompanied this code. |
| 9 | * |
| 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 13 | * version 2 for more details (a copy is included in the LICENSE file that |
| 14 | * accompanied this code). |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License version |
| 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | * |
| 20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 21 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 22 | * have any questions. |
| 23 | */ |
| 24 | |
| 25 | /* |
| 26 | * (C) Copyright IBM Corp. 1999 All Rights Reserved. |
| 27 | * Copyright 1997 The Open Group Research Institute. All rights reserved. |
| 28 | */ |
| 29 | |
| 30 | package sun.security.krb5.internal; |
| 31 | |
| 32 | import sun.security.util.*; |
| 33 | import java.io.IOException; |
| 34 | import sun.security.krb5.Asn1Exception; |
| 35 | import sun.security.krb5.internal.ccache.CCacheOutputStream; |
| 36 | |
| 37 | public class AuthorizationDataEntry implements Cloneable { |
| 38 | public int adType; |
| 39 | public byte[] adData; |
| 40 | |
| 41 | private AuthorizationDataEntry() { |
| 42 | } |
| 43 | |
| 44 | public AuthorizationDataEntry( |
| 45 | int new_adType, |
| 46 | byte[] new_adData |
| 47 | ) { |
| 48 | adType = new_adType; |
| 49 | adData = new_adData; |
| 50 | } |
| 51 | |
| 52 | public Object clone() { |
| 53 | AuthorizationDataEntry new_authorizationDataEntry = |
| 54 | new AuthorizationDataEntry(); |
| 55 | new_authorizationDataEntry.adType = adType; |
| 56 | if (adData != null) { |
| 57 | new_authorizationDataEntry.adData = new byte[adData.length]; |
| 58 | System.arraycopy(adData, 0, |
| 59 | new_authorizationDataEntry.adData, 0, adData.length); |
| 60 | } |
| 61 | return new_authorizationDataEntry; |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * Constructs an instance of AuthorizationDataEntry. |
| 66 | * @param encoding a single DER-encoded value. |
| 67 | */ |
| 68 | public AuthorizationDataEntry(DerValue encoding) throws Asn1Exception, IOException { |
| 69 | DerValue der; |
| 70 | if (encoding.getTag() != DerValue.tag_Sequence) { |
| 71 | throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
| 72 | } |
| 73 | der = encoding.getData().getDerValue(); |
| 74 | if ((der.getTag() & (byte)0x1F) == (byte)0x00) { |
| 75 | adType = der.getData().getBigInteger().intValue(); |
| 76 | } |
| 77 | else |
| 78 | throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
| 79 | der = encoding.getData().getDerValue(); |
| 80 | if ((der.getTag() & (byte)0x1F) == (byte)0x01) { |
| 81 | adData = der.getData().getOctetString(); |
| 82 | } |
| 83 | else |
| 84 | throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
| 85 | if (encoding.getData().available() > 0) |
| 86 | throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Encodes an AuthorizationDataEntry object. |
| 91 | * @return byte array of encoded AuthorizationDataEntry object. |
| 92 | * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data. |
| 93 | * @exception IOException if an I/O error occurs while reading encoded data. |
| 94 | */ |
| 95 | public byte[] asn1Encode() throws Asn1Exception, IOException { |
| 96 | DerOutputStream bytes = new DerOutputStream(); |
| 97 | DerOutputStream temp = new DerOutputStream(); |
| 98 | temp.putInteger(adType); |
| 99 | bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x00), temp); |
| 100 | temp = new DerOutputStream(); |
| 101 | temp.putOctetString(adData); |
| 102 | bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x01), temp); |
| 103 | temp = new DerOutputStream(); |
| 104 | temp.write(DerValue.tag_Sequence, bytes); |
| 105 | return temp.toByteArray(); |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * Writes the entry's data fields in FCC format to an output stream. |
| 110 | * |
| 111 | * @param cos a <code>CCacheOutputStream</code>. |
| 112 | * @exception IOException if an I/O exception occurs. |
| 113 | */ |
| 114 | public void writeEntry(CCacheOutputStream cos) throws IOException { |
| 115 | cos.write16(adType); |
| 116 | cos.write32(adData.length); |
| 117 | cos.write(adData, 0, adData.length); |
| 118 | } |
| 119 | |
| 120 | public String toString() { |
| 121 | return ("adType=" + adType + " adData.length=" + adData.length); |
| 122 | } |
| 123 | |
| 124 | } |