| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.server.kerberos.shared.io.encoder; |
| |
| |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import javax.security.auth.kerberos.KerberosPrincipal; |
| |
| import org.apache.directory.server.kerberos.shared.messages.value.PrincipalName; |
| import org.apache.directory.shared.asn1.der.DERGeneralString; |
| import org.apache.directory.shared.asn1.der.DERInteger; |
| import org.apache.directory.shared.asn1.der.DERSequence; |
| import org.apache.directory.shared.asn1.der.DERTaggedObject; |
| |
| |
| /** |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| * @version $Rev$, $Date$ |
| */ |
| public class PrincipalNameEncoder |
| { |
| private static final String COMPONENT_SEPARATOR = "/"; |
| private static final String REALM_SEPARATOR = "@"; |
| |
| |
| /** |
| * Encodes a {@link KerberosPrincipal} into a {@link DERSequence}. |
| * |
| * PrincipalName ::= SEQUENCE { |
| * name-type[0] INTEGER, |
| * name-string[1] SEQUENCE OF GeneralString |
| * } |
| * |
| * @param principal |
| * @return The {@link DERSequence}. |
| */ |
| public static DERSequence encode( KerberosPrincipal principal ) |
| { |
| DERSequence vector = new DERSequence(); |
| |
| vector.add( new DERTaggedObject( 0, DERInteger.valueOf( principal.getNameType() ) ) ); |
| vector.add( new DERTaggedObject( 1, encodeNameSequence( principal ) ) ); |
| |
| return vector; |
| } |
| |
| |
| /** |
| * Encodes a {@link PrincipalName} into a {@link DERSequence}. |
| * |
| * @param name |
| * @return The {@link DERSequence}. |
| */ |
| public static DERSequence encode( PrincipalName name ) |
| { |
| DERSequence vector = new DERSequence(); |
| |
| vector.add( new DERTaggedObject( 0, DERInteger.valueOf( name.getNameType().getOrdinal() ) ) ); |
| vector.add( new DERTaggedObject( 1, encodeNameSequence( name ) ) ); |
| |
| return vector; |
| } |
| |
| |
| private static DERSequence encodeNameSequence( KerberosPrincipal principal ) |
| { |
| Iterator<String> it = getNameStrings( principal ).iterator(); |
| |
| DERSequence vector = new DERSequence(); |
| |
| while ( it.hasNext() ) |
| { |
| vector.add( DERGeneralString.valueOf( it.next() ) ); |
| } |
| |
| return vector; |
| } |
| |
| |
| private static List<String> getNameStrings( KerberosPrincipal principal ) |
| { |
| String nameComponent = principal.getName().split( REALM_SEPARATOR )[0]; |
| String[] components = nameComponent.split( COMPONENT_SEPARATOR ); |
| return Arrays.asList( components ); |
| } |
| |
| |
| private static DERSequence encodeNameSequence( PrincipalName principalName ) |
| { |
| DERSequence vector = new DERSequence(); |
| |
| for ( String name:principalName.getNames() ) |
| { |
| vector.add( DERGeneralString.valueOf( name ) ); |
| } |
| |
| return vector; |
| } |
| } |