| /** |
| * 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.security.cert.X509Certificate; |
| import java.util.Set; |
| |
| import javax.security.auth.Subject; |
| import javax.security.auth.login.LoginContext; |
| |
| import org.apache.activemq.broker.Broker; |
| import org.apache.activemq.broker.ConnectionContext; |
| import org.apache.activemq.command.ConnectionInfo; |
| import org.apache.activemq.jaas.JassCredentialCallbackHandler; |
| |
| /** |
| * Logs a user in using JAAS. |
| * |
| * |
| */ |
| public class JaasAuthenticationBroker extends AbstractAuthenticationBroker { |
| |
| private final String jassConfiguration; |
| |
| public JaasAuthenticationBroker(Broker next, String jassConfiguration) { |
| super(next); |
| this.jassConfiguration = jassConfiguration; |
| } |
| |
| static class JaasSecurityContext extends SecurityContext { |
| |
| private final Subject subject; |
| |
| public JaasSecurityContext(String userName, Subject subject) { |
| super(userName); |
| this.subject = subject; |
| } |
| |
| @Override |
| public Set<Principal> getPrincipals() { |
| return subject.getPrincipals(); |
| } |
| } |
| |
| @Override |
| public void addConnection(ConnectionContext context, ConnectionInfo info) throws Exception { |
| if (context.getSecurityContext() == null) { |
| // Set the TCCL since it seems JAAS needs it to find the login module classes. |
| ClassLoader original = Thread.currentThread().getContextClassLoader(); |
| Thread.currentThread().setContextClassLoader(JaasAuthenticationBroker.class.getClassLoader()); |
| SecurityContext securityContext = null; |
| try { |
| securityContext = authenticate(info.getUserName(), info.getPassword(), null); |
| context.setSecurityContext(securityContext); |
| securityContexts.add(securityContext); |
| super.addConnection(context, info); |
| } catch (Exception error) { |
| if (securityContext != null) { |
| securityContexts.remove(securityContext); |
| } |
| context.setSecurityContext(null); |
| throw error; |
| } finally { |
| Thread.currentThread().setContextClassLoader(original); |
| } |
| } else { |
| super.addConnection(context, info); |
| } |
| } |
| |
| @Override |
| public SecurityContext authenticate(String username, String password, X509Certificate[] certificates) throws SecurityException { |
| SecurityContext result = null; |
| JassCredentialCallbackHandler callback = new JassCredentialCallbackHandler(username, password); |
| try { |
| LoginContext lc = new LoginContext(jassConfiguration, callback); |
| lc.login(); |
| Subject subject = lc.getSubject(); |
| |
| result = new JaasSecurityContext(username, subject); |
| } catch (Exception ex) { |
| throw new SecurityException("User name [" + username + "] or password is invalid.", ex); |
| } |
| |
| return result; |
| } |
| } |