/* 
    P/P   *  Method: net.sourceforge.pebble.web.action.ManageBlogEntryAction__static_init
          * 
          *  Postconditions:
          *    init'ed(log)
          */
     1  /*
     2   * Copyright (c) 2003-2006, Simon Brown
     3   * All rights reserved.
     4   *
     5   * Redistribution and use in source and binary forms, with or without
     6   * modification, are permitted provided that the following conditions are met:
     7   *
     8   *   - Redistributions of source code must retain the above copyright
     9   *     notice, this list of conditions and the following disclaimer.
    10   *
    11   *   - Redistributions in binary form must reproduce the above copyright
    12   *     notice, this list of conditions and the following disclaimer in
    13   *     the documentation and/or other materials provided with the
    14   *     distribution.
    15   *
    16   *   - Neither the name of Pebble nor the names of its contributors may
    17   *     be used to endorse or promote products derived from this software
    18   *     without specific prior written permission.
    19   *
    20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
    24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    30   * POSSIBILITY OF SUCH DAMAGE.
    31   */
    32  package net.sourceforge.pebble.web.action;
    33  
    34  import net.sourceforge.pebble.Constants;
    35  import net.sourceforge.pebble.domain.*;
    36  import net.sourceforge.pebble.util.StringUtils;
    37  import net.sourceforge.pebble.web.security.RequireSecurityToken;
    38  import net.sourceforge.pebble.web.view.ForwardView;
    39  import net.sourceforge.pebble.web.view.RedirectView;
    40  import net.sourceforge.pebble.web.view.View;
    41  import net.sourceforge.pebble.web.view.NotFoundView;
    42  import net.sourceforge.pebble.web.view.impl.PublishBlogEntryView;
    43  import org.apache.commons.logging.Log;
    44  import org.apache.commons.logging.LogFactory;
    45  
         /* 
    P/P   *  Method: void net.sourceforge.pebble.web.action.ManageBlogEntryAction()
          */
    46  import javax.servlet.ServletException;
    47  import javax.servlet.http.HttpServletRequest;
    48  import javax.servlet.http.HttpServletResponse;
    49  
    50  /**
    51   * Allows the user to manage (edit, remove, etc) a blog entry.
    52   *
    53   * @author    Simon Brown
    54   */
    55  @RequireSecurityToken
    56  public class ManageBlogEntryAction extends SecureAction {
    57  
    58    /** the log used by this class */
    59    private static final Log log = LogFactory.getLog(ManageBlogEntryAction.class);
    60  
    61    /**
    62     * Peforms the processing associated with this action.
    63     *
    64     * @param request  the HttpServletRequest instance
    65     * @param response the HttpServletResponse instance
    66     * @return the name of the next view
    67     */
    68    public View process(HttpServletRequest request, HttpServletResponse response) throws ServletException {
             /* 
    P/P       *  Method: View process(HttpServletRequest, HttpServletResponse)
              * 
              *  Preconditions:
              *    request != null
              *    this.model != null
              *    this.model.data != null
              * 
              *  Presumptions:
              *    java.util.HashMap:get(...)@63 != null
              *    javax.servlet.http.HttpServletRequest:getParameter(...)@72 != null
              * 
              *  Postconditions:
              *    return_value in Addr_Set{&new ForwardView(process#11),&new RedirectView(process#12),&new ForwardView(process#7),&new PublishBlogEntryView(process#6),&new ForwardView(process#4),&new NotFoundView(process#3)}
              *    new ForwardView(process#11) num objects <= 1
              *    new ForwardView(process#11).uri == &".viewHomePage.action"
              *    new ForwardView(process#4) num objects <= 1
              *    new ForwardView(process#4).uri != null
              *    new ForwardView(process#7) num objects <= 1
              *    new ForwardView(process#7).uri != null
              *    new NotFoundView(process#3) num objects <= 1
              *    new PublishBlogEntryView(process#6) num objects <= 1
              *    new RedirectView(process#12) num objects <= 1
              * 
              *  Test Vectors:
              *    java.lang.String:equals(...)@86: {0}, {1}
              *    java.lang.String:equals(...)@88: {1}, {0}
              *    java.lang.String:equals(...)@88: {0}, {1}
              *    java.lang.String:equals(...)@91: {0}, {1}
              *    java.lang.String:equals(...)@93: {0}, {1}
              *    java.lang.String:equalsIgnoreCase(...)@94: {0}, {1}
              *    javax.servlet.http.HttpServletRequest:getParameter(...)@71: Addr_Set{null}, Inverse{null}
              *    net.sourceforge.pebble.domain.BlogService:getBlogEntry(...)@77: Inverse{null}, Addr_Set{null}
              */
    69      Blog blog = (Blog)getModel().get(Constants.BLOG_KEY);
    70      String id = request.getParameter("entry");
    71      String confirm = request.getParameter("confirm");
    72      String submit = request.getParameter("submit");
    73  
    74      BlogService service = new BlogService();
    75      BlogEntry blogEntry = null;
    76      try {
    77        blogEntry = service.getBlogEntry(blog, id);
    78      } catch (BlogServiceException e) {
    79        throw new ServletException(e);
    80      }
    81  
    82      if (blogEntry == null) {
    83        return new NotFoundView();
    84      }
    85  
    86      if (submit.equals("Edit")) {
    87        return new ForwardView("/editBlogEntry.secureaction?entry=" + id);
    88      } else if (submit.equals("Publish") || submit.equals("Unpublish")) {
    89        getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);
    90        return new PublishBlogEntryView();
    91      } else if (submit.equals("Clone")) {
    92        return new ForwardView("/addBlogEntry.secureaction?entryToClone=" + blogEntry.getId());
    93      } else if (confirm != null && confirm.equals("true")) {
    94        if (submit.equalsIgnoreCase("Remove")) {
    95          try {
    96            service.removeBlogEntry(blogEntry);
    97            blog.info("Blog entry \"" + StringUtils.transformHTML(blogEntry.getTitle()) + "\" removed.");
    98          } catch (BlogServiceException be) {
    99            throw new ServletException(be);
   100          }
   101  
   102          return new ForwardView("/viewHomePage.action");
   103        }
   104      }
   105  
   106      return new RedirectView(blogEntry.getLocalPermalink());
   107    }
   108  
   109    /**
   110     * Gets a list of all roles that are allowed to access this action.
   111     *
   112     * @return  an array of Strings representing role names
   113     * @param request
   114     */
   115    public String[] getRoles(HttpServletRequest request) {
             /* 
    P/P       *  Method: String[] getRoles(HttpServletRequest)
              * 
              *  Preconditions:
              *    request != null
              * 
              *  Presumptions:
              *    init'ed(net.sourceforge.pebble.Constants.BLOG_CONTRIBUTOR_ROLE)
              *    init'ed(net.sourceforge.pebble.Constants.BLOG_OWNER_ROLE)
              *    init'ed(net.sourceforge.pebble.Constants.BLOG_PUBLISHER_ROLE)
              * 
              *  Postconditions:
              *    return_value in Addr_Set{&new String[](getRoles#4),&new String[](getRoles#3),&new String[](getRoles#2),&new String[](getRoles#1),&new String[](getRoles#5)}
              *    new String[](getRoles#1) num objects <= 1
              *    new String[](getRoles#1).length == 1
              *    new String[](getRoles#1)[0] == net.sourceforge.pebble.Constants.BLOG_PUBLISHER_ROLE
              *    (soft) init'ed(new String[](getRoles#1)[0])
              *    new String[](getRoles#2) num objects <= 1
              *    new String[](getRoles#2).length == 1
              *    new String[](getRoles#2)[0] == net.sourceforge.pebble.Constants.BLOG_PUBLISHER_ROLE
              *    (soft) init'ed(new String[](getRoles#2)[0])
              *    new String[](getRoles#3) num objects <= 1
              *    ...
              * 
              *  Test Vectors:
              *    java.lang.String:equalsIgnoreCase(...)@119: {0}, {1}
              *    java.lang.String:equalsIgnoreCase(...)@121: {0}, {1}
              *    java.lang.String:equalsIgnoreCase(...)@123: {0}, {1}
              *    java.lang.String:equalsIgnoreCase(...)@125: {0}, {1}
              *    javax.servlet.http.HttpServletRequest:getParameter(...)@116: Addr_Set{null}, Inverse{null}
              */
   116      String submit = request.getParameter("submit");
   117  
   118      if (submit != null) {
   119        if (submit.equalsIgnoreCase("Publish")) {
   120          return new String[]{Constants.BLOG_PUBLISHER_ROLE};
   121        } else if (submit.equalsIgnoreCase("Unpublish")) {
   122          return new String[]{Constants.BLOG_PUBLISHER_ROLE};
   123        } else if (submit.equalsIgnoreCase("Remove")) {
   124          return new String[]{Constants.BLOG_CONTRIBUTOR_ROLE};
   125        } else if (submit.equalsIgnoreCase("Edit")) {
   126          return new String[]{Constants.BLOG_CONTRIBUTOR_ROLE};
   127        }
   128      }
   129  
   130      // default back to blog owner role
   131      return new String[]{Constants.BLOG_OWNER_ROLE};
   132    }
   133  
   134  }