001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    package org.apache.shiro.cas;
020    
021    import org.apache.shiro.authc.AuthenticationToken;
022    import org.apache.shiro.subject.Subject;
023    import org.apache.shiro.subject.SubjectContext;
024    import org.apache.shiro.web.mgt.DefaultWebSubjectFactory;
025    
026    /**
027     * {@link org.apache.shiro.mgt.SubjectFactory Subject} implementation to be used in CAS-enabled applications.
028     *
029     * @since 1.2
030     */
031    public class CasSubjectFactory extends DefaultWebSubjectFactory {
032    
033        @Override
034        public Subject createSubject(SubjectContext context) {
035    
036            //the authenticated flag is only set by the SecurityManager after a successful authentication attempt.
037            boolean authenticated = context.isAuthenticated();
038    
039            //although the SecurityManager 'sees' the submission as a successful authentication, in reality, the
040            //login might have been just a CAS rememberMe login.  If so, set the authenticated flag appropriately:
041            if (authenticated) {
042    
043                AuthenticationToken token = context.getAuthenticationToken();
044    
045                if (token != null && token instanceof CasToken) {
046                    CasToken casToken = (CasToken) token;
047                    // set the authenticated flag of the context to true only if the CAS subject is not in a remember me mode
048                    if (casToken.isRememberMe()) {
049                        context.setAuthenticated(false);
050                    }
051                }
052            }
053    
054            return super.createSubject(context);
055        }
056    }