| /* |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * |
| * (C) Copyright IBM Corp. 1999 All Rights Reserved. |
| * Copyright 1997 The Open Group Research Institute. All rights reserved. |
| */ |
| |
| package sun.security.krb5.internal; |
| |
| import sun.security.util.*; |
| import sun.security.krb5.Asn1Exception; |
| import java.util.Vector; |
| import java.io.IOException; |
| import sun.security.krb5.internal.ccache.CCacheOutputStream; |
| |
| /** |
| * In RFC4120, the ASN.1 AuthorizationData is defined as: |
| * |
| * AuthorizationData ::= SEQUENCE OF SEQUENCE { |
| * ad-type [0] Int32, |
| * ad-data [1] OCTET STRING |
| * } |
| * |
| * Here, two classes are used to implement it and they can be represented as follows: |
| * |
| * AuthorizationData ::= SEQUENCE OF AuthorizationDataEntry |
| * AuthorizationDataEntry ::= SEQUENCE { |
| * ad-type[0] Int32, |
| * ad-data[1] OCTET STRING |
| * } |
| */ |
| public class AuthorizationData implements Cloneable { |
| |
| private AuthorizationDataEntry[] entry = null; |
| |
| private AuthorizationData() { |
| } |
| |
| public AuthorizationData(AuthorizationDataEntry[] new_entries) |
| throws IOException { |
| if (new_entries != null) { |
| entry = new AuthorizationDataEntry[new_entries.length]; |
| for (int i = 0; i < new_entries.length; i++) { |
| if (new_entries[i] == null) { |
| throw new IOException("Cannot create an AuthorizationData"); |
| } else { |
| entry[i] = (AuthorizationDataEntry) new_entries[i].clone(); |
| } |
| } |
| } |
| } |
| |
| public AuthorizationData(AuthorizationDataEntry new_entry) { |
| entry = new AuthorizationDataEntry[1]; |
| entry[0] = new_entry; |
| } |
| |
| public Object clone() { |
| AuthorizationData new_authorizationData = |
| new AuthorizationData(); |
| if (entry != null) { |
| new_authorizationData.entry = |
| new AuthorizationDataEntry[entry.length]; |
| for (int i = 0; i < entry.length; i++) { |
| new_authorizationData.entry[i] = |
| (AuthorizationDataEntry) entry[i].clone(); |
| } |
| } |
| return new_authorizationData; |
| } |
| |
| /** |
| * Constructs a new <code>AuthorizationData,</code> instance. |
| * @param der a single DER-encoded value. |
| * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data. |
| * @exception IOException if an I/O error occurs while reading encoded data. |
| */ |
| public AuthorizationData(DerValue der) throws Asn1Exception, IOException { |
| Vector<AuthorizationDataEntry> v = new Vector<>(); |
| if (der.getTag() != DerValue.tag_Sequence) { |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
| } |
| while (der.getData().available() > 0) { |
| v.addElement(new AuthorizationDataEntry(der.getData().getDerValue())); |
| } |
| if (v.size() > 0) { |
| entry = new AuthorizationDataEntry[v.size()]; |
| v.copyInto(entry); |
| } |
| } |
| |
| /** |
| * Encodes an <code>AuthorizationData</code> object. |
| * @return byte array of encoded <code>AuthorizationData</code> object. |
| * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data. |
| * @exception IOException if an I/O error occurs while reading encoded data. |
| */ |
| public byte[] asn1Encode() throws Asn1Exception, IOException { |
| DerOutputStream bytes = new DerOutputStream(); |
| DerValue der[] = new DerValue[entry.length]; |
| for (int i = 0; i < entry.length; i++) { |
| der[i] = new DerValue(entry[i].asn1Encode()); |
| } |
| bytes.putSequence(der); |
| return bytes.toByteArray(); |
| } |
| |
| /** |
| * Parse (unmarshal) an <code>AuthorizationData</code> object from a DER input stream. |
| * This form of parsing might be used when expanding a value which is part of |
| * a constructed sequence and uses explicitly tagged type. |
| * |
| * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data. |
| * @exception IOException if an I/O error occurs while reading encoded data. |
| * @param data the Der input stream value, which contains one or more marshaled value. |
| * @param explicitTag tag number. |
| * @param optional indicates if this data field is optional |
| * @return an instance of AuthorizationData. |
| * |
| */ |
| public static AuthorizationData parse(DerInputStream data, byte explicitTag, boolean optional) throws Asn1Exception, IOException { |
| if ((optional) && (((byte) data.peekByte() & (byte) 0x1F) != explicitTag)) { |
| return null; |
| } |
| DerValue der = data.getDerValue(); |
| if (explicitTag != (der.getTag() & (byte) 0x1F)) { |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
| } else { |
| DerValue subDer = der.getData().getDerValue(); |
| return new AuthorizationData(subDer); |
| } |
| } |
| |
| /** |
| * Writes <code>AuthorizationData</code> data fields to a output stream. |
| * |
| * @param cos a <code>CCacheOutputStream</code> to be written to. |
| * @exception IOException if an I/O exception occurs. |
| */ |
| public void writeAuth(CCacheOutputStream cos) throws IOException { |
| for (int i = 0; i < entry.length; i++) { |
| entry[i].writeEntry(cos); |
| } |
| } |
| |
| public String toString() { |
| String retVal = "AuthorizationData:\n"; |
| for (int i = 0; i < entry.length; i++) { |
| retVal += entry[i].toString(); |
| } |
| return retVal; |
| } |
| |
| public int count() { |
| return entry.length; |
| } |
| |
| public AuthorizationDataEntry item(int i) { |
| return (AuthorizationDataEntry)entry[i].clone(); |
| } |
| } |