| /* |
| * 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.jsecurity.authc.pam; |
| |
| import org.jsecurity.authc.AuthenticationException; |
| import org.jsecurity.authc.AuthenticationInfo; |
| import org.jsecurity.authc.AuthenticationToken; |
| |
| /** |
| * <tt>ModularAuthenticationStrategy</tt> implementation that requires <em>at least one</em> configured realm to |
| * successfully process the submitted <tt>AuthenticationToken</tt> during the log-in attempt. |
| * |
| * <p>This means any number of configured realms do not have to support the submitted log-in token, or they may |
| * be unable to acquire <tt>AuthenticationInfo</tt> for the token, but as long as at least one can do both, this |
| * Strategy implementation will allow the log-in process to be successful. |
| * |
| * <p>Note that this implementation will aggregate the account data from <em>all</em> successfully consulted |
| * realms during the authentication attempt. If you want only the account data from the first successfully |
| * consulted realm and want to ignore all subsequent realms, use the |
| * {@link FirstSuccessfulAuthenticationStrategy FirstSuccessfulAuthenticationStrategy} instead. |
| * |
| * @author Les Hazlewood |
| * @see FirstSuccessfulAuthenticationStrategy FirstSuccessfulAuthenticationStrategy |
| * @since 0.2 |
| */ |
| public class AtLeastOneSuccessfulModularAuthenticationStrategy extends AbstractAuthenticationStrategy { |
| |
| /** |
| * Ensures that the <code>aggregate</code> method argument is not <code>null</code> and |
| * <code>aggregate.{@link org.jsecurity.authc.AuthenticationInfo#getPrincipals() getPrincipals()}</code> |
| * <code>null</code>, and if either is <code>null</code>, throws an AuthenticationException to indicate |
| * that none of the realms authenticated successfully. |
| */ |
| public AuthenticationInfo afterAllAttempts(AuthenticationToken token, AuthenticationInfo aggregate) throws AuthenticationException { |
| //we know if one or more were able to succesfully authenticate if the aggregated account object does not |
| //contain null or empty data: |
| boolean oneOrMoreSuccessful = aggregate != null && (aggregate.getPrincipals() != null); |
| |
| if (!oneOrMoreSuccessful) { |
| throw new AuthenticationException("Authentication token of type [" + token.getClass() + "] " + |
| "could not be authenticated by any configured realms. Please ensure that at least one realm can " + |
| "authenticate these tokens."); |
| } |
| |
| return aggregate; |
| } |
| } |