/*

  * Copyright (c) 2003-2011, Simon Brown

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions are met:

  *

  *   - Redistributions of source code must retain the above copyright

  *     notice, this list of conditions and the following disclaimer.

  *

  *   - Redistributions in binary form must reproduce the above copyright

  *     notice, this list of conditions and the following disclaimer in

  *     the documentation and/or other materials provided with the

  *     distribution.

  *

  *   - Neither the name of Pebble nor the names of its contributors may

  *     be used to endorse or promote products derived from this software

  *     without specific prior written permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

  * POSSIBILITY OF SUCH DAMAGE.

  */

 package net.sourceforge.pebble.web.action;

 import net.sourceforge.pebble.Constants;

 import net.sourceforge.pebble.domain.BlogServiceException;

 import net.sourceforge.pebble.domain.Blog;

 import net.sourceforge.pebble.plugins.PluginConfigType;

 import net.sourceforge.pebble.web.security.RequireSecurityToken;

 import net.sourceforge.pebble.web.view.ForwardView;

 import net.sourceforge.pebble.web.view.View;

 import javax.servlet.ServletException;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import java.util.Enumeration;

 import java.util.Properties;

 /**

  * Saves the plugins associated with the current blog.

  *

  * @author    Simon Brown

  */

 @RequireSecurityToken

 public class SavePluginsAction extends SecureAction {

   public static final String PLUGIN_TYPE_PLACEHOLDER_PREFIX = "pluginType_";

   /**

    * Peforms the processing associated with this action.

    *

    * @param request  the HttpServletRequest instance

    * @param response the HttpServletResponse instance

    * @return the name of the next view

    */

   public View process(HttpServletRequest request, HttpServletResponse response) throws ServletException {

     Blog blog = (Blog)getModel().get(Constants.BLOG_KEY);

     String submit = request.getParameter("submit");

     if (submit != null && submit.length() > 0) {

       Properties pluginProperties = blog.getPluginProperties().getProperties();

       Enumeration params = request.getParameterNames();

       while (params.hasMoreElements()) {

         String key = (String)params.nextElement();

         if (key.equals("submit")) {

           // this is the parameter representing the submit button - do nothing

         } else if (key.startsWith(PluginConfigType.PLUGIN_PROPERTY_NAME_PREFIX)) {

           String value = request.getParameterValues(key)[0];

           String property = key.substring(PluginConfigType.PLUGIN_PROPERTY_NAME_PREFIX.length());

           if (value == null || value.length() == 0) {

             pluginProperties.remove(property);

           } else {

             pluginProperties.setProperty(property, value);

           }

         } else if (key.startsWith(PLUGIN_TYPE_PLACEHOLDER_PREFIX)) {

           // Place holder for checking if all plugins of a particular type have been disabled

           String pluginType = key.substring(PLUGIN_TYPE_PLACEHOLDER_PREFIX.length());

           if (request.getParameter(pluginType) == null) {

             blog.setProperty(pluginType, "");

           }

         } else {

           // this is an existing parameter - save or remove it

           String[] values = request.getParameterValues(key);

           StringBuilder builder = new StringBuilder();

           String separator = "";

           for (String value : values) {

             builder.append(separator).append(value);

             separator = "\n";

           }

           blog.setProperty(key, builder.toString());

         }

       }

       try {

         blog.storeProperties();

         blog.getPluginProperties().store();

       } catch (BlogServiceException e) {

         throw new ServletException(e);

       }

     }

     return new ForwardView("/reloadBlog.secureaction?redirectUrl=/aboutBlog.secureaction");

   }

   /**

    * Gets a list of all roles that are allowed to access this action.

    *

    * @return  an array of Strings representing role names

    * @param request

    */

   public String[] getRoles(HttpServletRequest request) {

     return new String[]{

         Constants.BLOG_ADMIN_ROLE,

         Constants.BLOG_OWNER_ROLE

     };

   }

 }