001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    
018    package org.apache.activemq.security;
019    
020    import java.security.Principal;
021    import java.security.cert.X509Certificate;
022    import java.util.Set;
023    
024    import javax.security.auth.Subject;
025    
026    /**
027     * Extends the SecurityContext to provide a username which is the
028     * Distinguished Name from the certificate.
029     *
030     */
031    public class JaasCertificateSecurityContext extends SecurityContext {
032    
033        private Subject subject;
034        private X509Certificate[] certs;
035      
036        public JaasCertificateSecurityContext(String userName, Subject subject, X509Certificate[] certs) {
037            super(userName);
038            this.subject = subject;
039            this.certs = certs;
040        }
041    
042        public Set<Principal> getPrincipals() {
043            return subject.getPrincipals();
044        }
045      
046        public String getUserName() {
047            if (certs != null && certs.length > 0) {
048                return certs[0].getSubjectDN().getName();
049            }
050            return super.getUserName();
051        }
052    
053    }