/*

  * 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.shiro.samples.spring.web;

 import org.apache.shiro.SecurityUtils;

 import org.apache.shiro.samples.spring.SampleManager;

 import org.apache.shiro.session.Session;

 import org.apache.shiro.subject.Subject;

 import org.springframework.validation.BindException;

 import org.springframework.validation.Errors;

 import org.springframework.web.servlet.ModelAndView;

 import org.springframework.web.servlet.mvc.SimpleFormController;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import java.util.HashMap;

 import java.util.LinkedHashMap;

 import java.util.Map;

 /**

  * Spring MVC controller responsible for rendering the Shiro Spring sample

  * application index page.

  *

  * @since 0.1

  */

 public class IndexController extends SimpleFormController {

     /*--------------------------------------------

     |             C O N S T A N T S             |

     ============================================*/

     /*--------------------------------------------

     |    I N S T A N C E   V A R I A B L E S    |

     ============================================*/

     private SampleManager sampleManager;

     /*--------------------------------------------

     |         C O N S T R U C T O R S           |

     ============================================*/

     /*--------------------------------------------

     |  A C C E S S O R S / M O D I F I E R S    |

     ============================================*/

     public void setSampleManager(SampleManager sampleManager) {

         this.sampleManager = sampleManager;

     }

     /*--------------------------------------------

     |               M E T H O D S               |

     ============================================*/

     protected Object formBackingObject(HttpServletRequest request) throws Exception {

         SessionValueCommand command = (SessionValueCommand) createCommand();

         command.setValue(sampleManager.getValue());

         return command;

     }

     protected Map<String, Object> referenceData(HttpServletRequest request, Object command, Errors errors) throws Exception {

         Subject subject = SecurityUtils.getSubject();

         boolean hasRole1 = subject.hasRole("role1");

         boolean hasRole2 = subject.hasRole("role2");

         Map<String, Object> refData = new HashMap<String, Object>();

         refData.put("hasRole1", hasRole1);

         refData.put("hasRole2", hasRole2);

         Session session = subject.getSession();

         Map<Object, Object> sessionAttributes = new LinkedHashMap<Object, Object>();

         for (Object key : session.getAttributeKeys()) {

             sessionAttributes.put(key, session.getAttribute(key));

         }

         refData.put("sessionAttributes", sessionAttributes);

         refData.put("subjectSession", subject.getSession());

         return refData;

     }

     protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object obj, BindException errors) throws Exception {

         SessionValueCommand command = (SessionValueCommand) obj;

         sampleManager.setValue(command.getValue());

         return showForm(request, response, errors);

     }

 }