content: /**
   * 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.activemq.security;
  
  import java.security.Principal;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  import java.util.StringTokenizer;
  
  import org.apache.activemq.broker.Broker;
  import org.apache.activemq.broker.BrokerPlugin;
  import org.apache.activemq.jaas.GroupPrincipal;
  
  /**
   * A simple authentication plugin
   *
   * @org.apache.xbean.XBean element="simpleAuthenticationPlugin"
   *                         description="Provides a simple authentication plugin
   *                         configured with a map of user-passwords and a map of
   *                         user-groups or a list of authentication users"
   *
   *
   */
  public class SimpleAuthenticationPlugin implements BrokerPlugin {
      private Map<String, String> userPasswords = new HashMap<String, String>();
      private Map<String, Set<Principal>> userGroups = new HashMap<String, Set<Principal>>();
      private static final String DEFAULT_ANONYMOUS_USER = "anonymous";
      private static final String DEFAULT_ANONYMOUS_GROUP = "anonymous";
      private String anonymousUser = DEFAULT_ANONYMOUS_USER;
      private String anonymousGroup = DEFAULT_ANONYMOUS_GROUP;
      private boolean anonymousAccessAllowed = false;
  
      public SimpleAuthenticationPlugin() {
      }
  
      public SimpleAuthenticationPlugin(List<?> users) {
          setUsers(users);
      }
  
      public Broker installPlugin(Broker parent) {
          SimpleAuthenticationBroker broker = new SimpleAuthenticationBroker(parent, userPasswords, userGroups);
          broker.setAnonymousAccessAllowed(anonymousAccessAllowed);
          broker.setAnonymousUser(anonymousUser);
          broker.setAnonymousGroup(anonymousGroup);
          return broker;
      }
  
      public Map<String, Set<Principal>> getUserGroups() {
          return userGroups;
      }
  
      /**
       * Sets individual users for authentication
       *
       * @org.apache.xbean.ElementType class="org.apache.activemq.security.AuthenticationUser"
       */
      public void setUsers(List<?> users) {
          userPasswords.clear();
          userGroups.clear();
          for (Iterator<?> it = users.iterator(); it.hasNext();) {
              AuthenticationUser user = (AuthenticationUser)it.next();
              userPasswords.put(user.getUsername(), user.getPassword());
              Set<Principal> groups = new HashSet<Principal>();
              if (user.getGroups() != null) {
                  StringTokenizer iter = new StringTokenizer(user.getGroups(), ",");
                  while (iter.hasMoreTokens()) {
                      String name = iter.nextToken().trim();
                      groups.add(new GroupPrincipal(name));
                  }
              }
              userGroups.put(user.getUsername(), groups);
          }
      }
  
  
      public void setAnonymousAccessAllowed(boolean anonymousAccessAllowed) {
          this.anonymousAccessAllowed = anonymousAccessAllowed;
      }
  
      public boolean isAnonymousAccessAllowed() {
          return anonymousAccessAllowed;
      }
  
      public void setAnonymousUser(String anonymousUser) {
          this.anonymousUser = anonymousUser;
      }
  
      public String getAnonymousUser() {
          return anonymousUser;
      }
  
      public void setAnonymousGroup(String anonymousGroup) {
          this.anonymousGroup = anonymousGroup;
      }
  
      public String getAnonymousGroup() {
          return anonymousGroup;
      }
  
      /**
       * Sets the groups a user is in. The key is the user name and the value is a
       * Set of groups
       */
      public void setUserGroups(Map<String, Set<Principal>> userGroups) {
          this.userGroups = userGroups;
      }
  
      public Map<String, String> getUserPasswords() {
          return userPasswords;
      }
  
      /**
       * Sets the map indexed by user name with the value the password
       */
      public void setUserPasswords(Map<String, String> userPasswords) {
          this.userPasswords = userPasswords;
      }
  
  }
  