spamscorelistener.java

### File Source: spamscorelistener.java

         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.event.response;
        33
        34  import net.sourceforge.pebble.PluginProperties;
        35  import net.sourceforge.pebble.domain.Comment;
        36  import net.sourceforge.pebble.domain.Response;
        37  import org.apache.commons.logging.Log;
        38  import org.apache.commons.logging.LogFactory;
        39
        40  /**
        41   * Checks the spam score of comments and TrackBacks and if greater than the
        42   * threshold, marks them as rejected.
        43   *
        44   * @author Simon Brown
        45   */
             /*
        P/P   *  Method: void net.sourceforge.pebble.event.response.SpamScoreListener()
              */
        46  public class SpamScoreListener extends BlogEntryResponseListenerSupport {
        47
        48    /** the log used by this class */
               /*
        P/P     *  Method: net.sourceforge.pebble.event.response.SpamScoreListener__static_init
                *
                *  Postconditions:
                *    init'ed(log)
                */
        49    private static final Log log = LogFactory.getLog(SpamScoreListener.class);
        50
        51    /** the default threshold for the spam score */
        52    public static final int DEFAULT_THRESHOLD = 1;
        53
        54    /** the name of the threshold property for comments */
        55    public static final String COMMENT_THRESHOLD_KEY = "SpamScoreListener.commentThreshold";
        56
        57    /** the name of the threshold property for TrackBacks */
        58    public static final String TRACKBACK_THRESHOLD_KEY = "SpamScoreListener.trackbackThreshold";
        59
        60    /**
        61     * Called when a comment or TrackBack has been added.
        62     *
        63     * @param response a Response
        64     */
        65    protected void blogEntryResponseAdded(Response response) {
                 /*
        P/P       *  Method: void blogEntryResponseAdded(Response)
                  *
                  *  Preconditions:
                  *    response != null
                  *
                  *  Presumptions:
                  *    org.apache.commons.logging.LogFactory:getLog(...)@49 != null
                  *
                  *  Preconditions:
                  *    response.blogEntry != null
                  *    response.blogEntry.blog.pluginProperties != null
                  *    response.blogEntry.blog != null
                  *    init'ed(response.spamScore)
                  *    (soft) init'ed(response.title)
                  *
                  *  Postconditions:
                  *    response.state == One-of{old response.state, &net.sourceforge.pebble.domain.State__static_init.new State(State__static_init#2)}
                  *
                  *  Test Vectors:
                  *    net.sourceforge.pebble.PluginProperties:hasProperty(...)@74: {0}, {1}
                  */
        66      PluginProperties props = response.getBlogEntry().getBlog().getPluginProperties();
        67      String propertyName = "";
        68      if (response instanceof Comment) {
        69        propertyName = COMMENT_THRESHOLD_KEY;
        70      } else {
        71        propertyName = TRACKBACK_THRESHOLD_KEY;
        72      }
        73      int threshold = DEFAULT_THRESHOLD;
        74      if (props.hasProperty(propertyName)) {
        75        try {
        76          threshold = Integer.parseInt(props.getProperty(propertyName));
        77        } catch (NumberFormatException nfe) {
        78          log.error(nfe.getMessage());
        79          // do nothing, the value has already been defaulted
        80        }
        81      }
        82
        83      if (response.getSpamScore() > threshold) {
        84        log.info(response.getTitle() + " rejected : spam score is " + response.getSpamScore() + ", threshold is " + threshold);
        85        response.setRejected();
        86      }
        87    }
        88
        89  }

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spamscorelistener.java | 2010-Jun-25 19:40:32
spamscorelistener.class | 2010-Jul-19 20:23:38