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    package org.apache.activemq.security;
018    
019    import java.net.URL;
020    
021    import org.apache.activemq.broker.Broker;
022    import org.apache.activemq.broker.BrokerPlugin;
023    
024    /**
025     * Adds a JAAS based authentication security plugin
026     * 
027     * @org.apache.xbean.XBean description="Provides a JAAS based authentication plugin"
028     * 
029     * 
030     */
031    public class JaasAuthenticationPlugin implements BrokerPlugin {
032        protected String configuration = "activemq-domain";
033        protected boolean discoverLoginConfig = true;
034    
035        public Broker installPlugin(Broker broker) {
036            initialiseJaas();
037            return new JaasAuthenticationBroker(broker, configuration);
038        }
039    
040    
041        // Properties
042        // -------------------------------------------------------------------------
043        public String getConfiguration() {
044            return configuration;
045        }
046    
047        /**
048         * Sets the JAAS configuration domain name used
049         */
050        public void setConfiguration(String jaasConfiguration) {
051            this.configuration = jaasConfiguration;
052        }
053    
054    
055        public boolean isDiscoverLoginConfig() {
056            return discoverLoginConfig;
057        }
058    
059        /**
060         * Enables or disables the auto-discovery of the login.config file for JAAS to initialize itself. 
061         * This flag is enabled by default such that if the <b>java.security.auth.login.config</b> system property
062         * is not defined then it is set to the location of the <b>login.config</b> file on the classpath.
063         */
064        public void setDiscoverLoginConfig(boolean discoverLoginConfig) {
065            this.discoverLoginConfig = discoverLoginConfig;
066        }
067    
068        // Implementation methods
069        // -------------------------------------------------------------------------
070        protected void initialiseJaas() {
071            if (discoverLoginConfig) {
072                String path = System.getProperty("java.security.auth.login.config");
073                if (path == null) {
074                    //URL resource = Thread.currentThread().getContextClassLoader().getResource("login.config");
075                    URL resource = null;
076                    if (resource == null) {
077                        resource = getClass().getClassLoader().getResource("login.config");
078                    }
079                    if (resource != null) {
080                        path = resource.getFile();
081                        System.setProperty("java.security.auth.login.config", path);
082                    }
083                }
084            }
085        }
086    }