| /** |
| * 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.jaas; |
| |
| import java.io.IOException; |
| import java.security.Principal; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import javax.security.auth.Subject; |
| import javax.security.auth.callback.Callback; |
| import javax.security.auth.callback.CallbackHandler; |
| import javax.security.auth.callback.PasswordCallback; |
| import javax.security.auth.callback.UnsupportedCallbackException; |
| import javax.security.auth.login.LoginException; |
| import javax.security.auth.spi.LoginModule; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Always login the user with a default 'guest' identity. |
| * |
| * Useful for unauthenticated communication channels being used in the |
| * same broker as authenticated ones. |
| * |
| */ |
| public class GuestLoginModule implements LoginModule { |
| |
| private static final String GUEST_USER = "org.apache.activemq.jaas.guest.user"; |
| private static final String GUEST_GROUP = "org.apache.activemq.jaas.guest.group"; |
| |
| private static final Logger LOG = LoggerFactory.getLogger(GuestLoginModule.class); |
| |
| |
| private String userName = "guest"; |
| private String groupName = "guests"; |
| private Subject subject; |
| private boolean debug; |
| private boolean credentialsInvalidate; |
| private Set<Principal> principals = new HashSet<Principal>(); |
| private CallbackHandler callbackHandler; |
| private boolean loginSucceeded; |
| |
| |
| public void initialize(Subject subject, CallbackHandler callbackHandler, Map sharedState, Map options) { |
| this.subject = subject; |
| this.callbackHandler = callbackHandler; |
| debug = "true".equalsIgnoreCase((String)options.get("debug")); |
| credentialsInvalidate = "true".equalsIgnoreCase((String)options.get("credentialsInvalidate")); |
| if (options.get(GUEST_USER) != null) { |
| userName = (String)options.get(GUEST_USER); |
| } |
| if (options.get(GUEST_GROUP) != null) { |
| groupName = (String)options.get(GUEST_GROUP); |
| } |
| principals.add(new UserPrincipal(userName)); |
| principals.add(new GroupPrincipal(groupName)); |
| |
| if (debug) { |
| LOG.debug("Initialized debug=" + debug + " guestUser=" + userName + " guestGroup=" + groupName); |
| } |
| |
| } |
| |
| public boolean login() throws LoginException { |
| loginSucceeded = true; |
| if (credentialsInvalidate) { |
| PasswordCallback passwordCallback = new PasswordCallback("Password: ", false); |
| try { |
| callbackHandler.handle(new Callback[]{passwordCallback}); |
| if (passwordCallback.getPassword() != null) { |
| if (debug) { |
| LOG.debug("Guest login failing (credentialsInvalidate=true) on presence of a password"); |
| } |
| loginSucceeded = false; |
| passwordCallback.clearPassword(); |
| }; |
| } catch (IOException ioe) { |
| } catch (UnsupportedCallbackException uce) { |
| } |
| } |
| if (debug) { |
| LOG.debug("Guest login " + loginSucceeded); |
| } |
| return loginSucceeded; |
| } |
| |
| public boolean commit() throws LoginException { |
| if (loginSucceeded) { |
| subject.getPrincipals().addAll(principals); |
| } |
| |
| if (debug) { |
| LOG.debug("commit"); |
| } |
| return loginSucceeded; |
| } |
| |
| public boolean abort() throws LoginException { |
| |
| if (debug) { |
| LOG.debug("abort"); |
| } |
| return true; |
| } |
| |
| public boolean logout() throws LoginException { |
| subject.getPrincipals().removeAll(principals); |
| |
| if (debug) { |
| LOG.debug("logout"); |
| } |
| return true; |
| } |
| } |