/**
* 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.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;
import org.apache.activemq.broker.Broker;
import org.apache.activemq.broker.BrokerFilter;
import org.apache.activemq.broker.ConnectionContext;
import org.apache.activemq.command.ConnectionInfo;
/**
* Handles authenticating a users against a simple user name/password map.
*
* @version $Revision$
*/
public class SimpleAuthenticationBroker extends BrokerFilter {
private final Map userPasswords;
private final Map userGroups;
private final CopyOnWriteArrayList<SecurityContext> securityContexts = new CopyOnWriteArrayList<SecurityContext>();
public SimpleAuthenticationBroker(Broker next, Map userPasswords, Map userGroups) {
super(next);
this.userPasswords = userPasswords;
this.userGroups = userGroups;
}
public void addConnection(ConnectionContext context, ConnectionInfo info) throws Exception {
if (context.getSecurityContext() == null) {
// Check the username and password.
String pw = (String)userPasswords.get(info.getUserName());
if (pw == null || !pw.equals(info.getPassword())) {
throw new SecurityException("User name or password is invalid.");
}
final Set groups = (Set)userGroups.get(info.getUserName());
SecurityContext s = new SecurityContext(info.getUserName()) {
public Set<?> getPrincipals() {
return groups;
}
};
context.setSecurityContext(s);
securityContexts.add(s);
}
super.addConnection(context, info);
}
public void removeConnection(ConnectionContext context, ConnectionInfo info, Throwable error)
throws Exception {
super.removeConnection(context, info, error);
if (securityContexts.remove(context.getSecurityContext())) {
context.setSecurityContext(null);
}
}
/**
* Previously logged in users may no longer have the same access anymore.
* Refresh all the logged into users.
*/
public void refresh() {
for (Iterator<SecurityContext> iter = securityContexts.iterator(); iter.hasNext();) {
SecurityContext sc = iter.next();
sc.getAuthorizedReadDests().clear();
sc.getAuthorizedWriteDests().clear();
}
}
}
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