Coverage report

  %line %branch
org.apache.turbine.modules.actions.sessionvalidator.TemplateSessionValidator
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 1  
 package org.apache.turbine.modules.actions.sessionvalidator;
 2  
 
 3  
 /*
 4  
  * Copyright 2001-2005 The Apache Software Foundation.
 5  
  *
 6  
  * Licensed under the Apache License, Version 2.0 (the "License")
 7  
  * you may not use this file except in compliance with the License.
 8  
  * You may obtain a copy of the License at
 9  
  *
 10  
  *     http://www.apache.org/licenses/LICENSE-2.0
 11  
  *
 12  
  * Unless required by applicable law or agreed to in writing, software
 13  
  * distributed under the License is distributed on an "AS IS" BASIS,
 14  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 15  
  * See the License for the specific language governing permissions and
 16  
  * limitations under the License.
 17  
  */
 18  
 
 19  
 import org.apache.commons.configuration.Configuration;
 20  
 
 21  
 import org.apache.commons.lang.StringUtils;
 22  
 
 23  
 import org.apache.commons.logging.Log;
 24  
 import org.apache.commons.logging.LogFactory;
 25  
 
 26  
 import org.apache.turbine.Turbine;
 27  
 import org.apache.turbine.TurbineConstants;
 28  
 
 29  
 import org.apache.turbine.services.security.TurbineSecurity;
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 31  
 import org.apache.turbine.util.RunData;
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 import org.apache.turbine.util.TurbineException;
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 34  
 /**
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  * SessionValidator for use with the Template Service, the
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  * TemplateSessionValidator is virtually identical to the
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  * TemplateSecureValidator except that it does not transfer to the
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  * login page when it detects a null user (or a user not logged in).
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  *
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  * <p>The Template Service requires a different Session Validator
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  * because of the way it handles screens.
 42  
  *
 43  
  * <p>Note that you will need to set the template.login property to the
 44  
  * login template.
 45  
  *
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  * @see TemplateSecureSessionValidator
 47  
  * @author <a href="mailto:john.mcnally@clearink.com">John D. McNally</a>
 48  
  * @author <a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a>
 49  
  * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
 50  
  * @version $Id: TemplateSessionValidator.java 264148 2005-08-29 14:21:04Z henning $
 51  
  */
 52  0
 public class TemplateSessionValidator
 53  
     extends SessionValidator
 54  
 {
 55  
     /** Logging */
 56  0
     private static Log log = LogFactory.getLog(TemplateSessionValidator.class);
 57  
 
 58  
     /**
 59  
      * Execute the action.
 60  
      *
 61  
      * @param data Turbine information.
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      * @exception TurbineException The anonymous user could not be obtained
 63  
      *         from the security service
 64  
      */
 65  
     public void doPerform(RunData data)
 66  
             throws TurbineException
 67  
     {
 68  0
         Configuration conf = Turbine.getConfiguration();
 69  
 
 70  
         // Pull user from session.
 71  0
         data.populate();
 72  
 
 73  
         // The user may have not logged in, so create a "guest/anonymous" user.
 74  0
         if (data.getUser() == null)
 75  
         {
 76  0
             log.debug("Fixing up empty User Object!");
 77  0
             data.setUser(TurbineSecurity.getAnonymousUser());
 78  0
             data.save();
 79  
         }
 80  
 
 81  
         // make sure we have some way to return a response
 82  0
         if (!data.hasScreen() && StringUtils.isEmpty(
 83  
                 data.getTemplateInfo().getScreenTemplate()))
 84  
         {
 85  0
             String template = conf.getString(
 86  
                     TurbineConstants.TEMPLATE_HOMEPAGE);
 87  
 
 88  0
             if (StringUtils.isNotEmpty(template))
 89  
             {
 90  0
                 data.getTemplateInfo().setScreenTemplate(template);
 91  
             }
 92  
             else
 93  
             {
 94  0
                 data.setScreen(conf.getString(
 95  
                         TurbineConstants.SCREEN_HOMEPAGE));
 96  
             }
 97  
         }
 98  
         // the session_access_counter can be placed as a hidden field in
 99  
         // forms.  This can be used to prevent a user from using the
 100  
         // browsers back button and submitting stale data.
 101  0
         else if (data.getParameters().containsKey("_session_access_counter")
 102  
                 && !TurbineSecurity.isAnonymousUser(data.getUser()))
 103  
         {
 104  
             // See comments in screens.error.InvalidState.
 105  0
             if (data.getParameters().getInt("_session_access_counter")
 106  
                     < (((Integer) data.getUser().getTemp(
 107  
                     "_session_access_counter")).intValue() - 1))
 108  
             {
 109  0
                 if (data.getTemplateInfo().getScreenTemplate() != null)
 110  
                 {
 111  0
                     data.getUser().setTemp("prev_template",
 112  
                             data.getTemplateInfo().getScreenTemplate()
 113  
                             .replace('/', ','));
 114  0
                     data.getTemplateInfo().setScreenTemplate(conf.getString(
 115  
                             TurbineConstants.TEMPLATE_INVALID_STATE));
 116  
                 }
 117  
                 else
 118  
                 {
 119  0
                     data.getUser().setTemp("prev_screen",
 120  
                                            data.getScreen().replace('/', ','));
 121  0
                     data.setScreen(conf.getString(
 122  
                             TurbineConstants.SCREEN_INVALID_STATE));
 123  
                 }
 124  0
                 data.getUser().setTemp("prev_parameters", data.getParameters());
 125  0
                 data.setAction("");
 126  
             }
 127  
         }
 128  
 
 129  
         // we do not want to allow both a screen and template parameter.
 130  
         // The template parameter is dominant.
 131  0
         if (data.getTemplateInfo().getScreenTemplate() != null)
 132  
         {
 133  0
             data.setScreen(null);
 134  
         }
 135  0
     }
 136  
 }

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