sendtrackbackaction.java

### File Source: sendtrackbackaction.java

             /*
        P/P   *  Method: net.sourceforge.pebble.web.action.SendTrackBackAction__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.BlogEntry;
        36  import net.sourceforge.pebble.domain.Blog;
        37  import net.sourceforge.pebble.domain.BlogService;
        38  import net.sourceforge.pebble.domain.BlogServiceException;
        39  import net.sourceforge.pebble.web.view.NotFoundView;
        40  import net.sourceforge.pebble.web.view.View;
        41  import net.sourceforge.pebble.web.view.impl.TrackBackFormView;
        42  import net.sourceforge.pebble.web.view.impl.TrackBackSentView;
             /*
        P/P   *  Method: void net.sourceforge.pebble.web.action.SendTrackBackAction()
              */
        43  import org.apache.commons.httpclient.HttpClient;
        44  import org.apache.commons.httpclient.NameValuePair;
        45  import org.apache.commons.httpclient.methods.PostMethod;
        46  import org.apache.commons.logging.Log;
        47  import org.apache.commons.logging.LogFactory;
        48
        49  import javax.servlet.ServletException;
        50  import javax.servlet.http.HttpServletRequest;
        51  import javax.servlet.http.HttpServletResponse;
        52
        53  /**
        54   * Adds a comment to an existing blog entry.
        55   *
        56   * @author    Simon Brown
        57   */
        58  public class SendTrackBackAction extends SecureAction {
        59
        60    /** the log used by this class */
        61    private static Log log = LogFactory.getLog(SendTrackBackAction.class);
        62
        63    /**
        64     * Peforms the processing associated with this action.
        65     *
        66     * @param request  the HttpServletRequest instance
        67     * @param response the HttpServletResponse instance
        68     * @return the name of the next view
        69     */
        70    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
                  *    net.sourceforge.pebble.domain.BlogEntry:getBlog(...)@100 != null
                  *
                  *  Postconditions:
                  *    return_value in Addr_Set{&new TrackBackSentView(process#15),&new TrackBackFormView(process#4),&new NotFoundView(process#3)}
                  *    new NotFoundView(process#3) num objects <= 1
                  *    new TrackBackFormView(process#4) num objects <= 1
                  *    new TrackBackSentView(process#15) num objects <= 1
                  *
                  *  Test Vectors:
                  *    java.lang.String:length(...)@94: {1..232-1}, {0}
                  *    javax.servlet.http.HttpServletRequest:getParameter(...)@73: Addr_Set{null}, Inverse{null}
                  *    javax.servlet.http.HttpServletRequest:getParameter(...)@74: Addr_Set{null}, Inverse{null}
                  */
        71      Blog blog = (Blog)getModel().get(Constants.BLOG_KEY);
        72
        73      String entryId = request.getParameter("entry");
        74      String trackBackUrl = request.getParameter("url");
        75      String excerpt = request.getParameter("excerpt");
        76      String trackBackResponseMessage;
        77      Integer trackBackResponseCode;
        78
        79      BlogService service = new BlogService();
        80      BlogEntry blogEntry = null;
        81      if (entryId != null) {
        82        try {
        83          blogEntry = service.getBlogEntry(blog, entryId);
        84        } catch (BlogServiceException e) {
        85          throw new ServletException(e);
        86        }
        87      }
        88
        89      if (blogEntry == null) {
        90        // the entry cannot be found - it may have been removed or the
        91        // requesting URL was wrong
        92
        93        return new NotFoundView();
        94      } else if (trackBackUrl == null || trackBackUrl.trim().length() == 0) {
        95        getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);
        96        return new TrackBackFormView();
        97      } else {
        98        // extract the information to send in the trackback
        99        String title = blogEntry.getTitle();
       100        String blogName = blogEntry.getBlog().getName();
       101        String url = blogEntry.getPermalink();
       102
       103        // now send the trackback
       104        try {
       105          HttpClient httpClient = new HttpClient();
       106          PostMethod postMethod = new PostMethod(trackBackUrl);
       107          postMethod.addRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=" + blog.getCharacterEncoding());
       108          NameValuePair[] data = {
       109            new NameValuePair("title", title),
       110            new NameValuePair("url", url),
       111            new NameValuePair("excerpt", excerpt),
       112            new NameValuePair("blog_name", blogName)
       113          };
       114          postMethod.addParameters(data);
       115
       116          trackBackResponseCode = new Integer(httpClient.executeMethod(postMethod));
       117          trackBackResponseMessage = postMethod.getResponseBodyAsString();
       118        } catch (Exception e) {
       119          log.error(e.getMessage(), e);
       120          throw new ServletException(e);
       121        }
       122
       123        getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);
       124        getModel().put("trackBackUrl", trackBackUrl);
       125        getModel().put("trackBackResponseCode", trackBackResponseCode);
       126        getModel().put("trackBackResponseMessage", trackBackResponseMessage);
       127
       128        return new TrackBackSentView();
       129      }
       130
       131    }
       132
       133    /**
       134     * Gets a list of all roles that are allowed to access this action.
       135     *
       136     * @return  an array of Strings representing role names
       137     * @param request
       138     */
       139    public String[] getRoles(HttpServletRequest request) {
                 /*
        P/P       *  Method: String[] getRoles(HttpServletRequest)
                  *
                  *  Presumptions:
                  *    init'ed(net.sourceforge.pebble.Constants.BLOG_CONTRIBUTOR_ROLE)
                  *
                  *  Postconditions:
                  *    return_value == &new String[](getRoles#1)
                  *    new String[](getRoles#1) num objects == 1
                  *    return_value.length == 1
                  *    return_value[0] == net.sourceforge.pebble.Constants.BLOG_CONTRIBUTOR_ROLE
                  *    (soft) init'ed(return_value[0])
                  */
       140      return new String[]{Constants.BLOG_CONTRIBUTOR_ROLE};
       141    }
       142
       143  }

SofCheck Inspector Build Version : 2.22510

sendtrackbackaction.java | 2010-Jun-25 19:40:34
sendtrackbackaction.class | 2010-Jul-19 20:23:38