sonews-drupal: org/sonews/daemon/command/ArticleCommand.java@6fceb66e1ad7

     1 /*

     2  *   SONEWS News Server

     3  *   see AUTHORS for the list of contributors

     4  *

     5  *   This program is free software: you can redistribute it and/or modify

     6  *   it under the terms of the GNU General Public License as published by

     7  *   the Free Software Foundation, either version 3 of the License, or

     8  *   (at your option) any later version.

     9  *

    10  *   This program is distributed in the hope that it will be useful,

    11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of

    12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    13  *   GNU General Public License for more details.

    14  *

    15  *   You should have received a copy of the GNU General Public License

    16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.

    17  */

    19 package org.sonews.daemon.command;

    21 import java.io.IOException;

    22 import java.sql.SQLException;

    23 import org.sonews.daemon.storage.Article;

    24 import org.sonews.daemon.NNTPConnection;

    25 import org.sonews.daemon.storage.Group;

    27 /**

    28  * Class handling the ARTICLE, BODY and HEAD commands.

    29  * @author Christian Lins

    30  * @author Dennis Schwerdel

    31  * @since n3tpd/0.1

    32  */

    33 public class ArticleCommand extends AbstractCommand

    34 {

    36   public ArticleCommand(final NNTPConnection connection)

    37   {

    38     super(connection);

    39   }

    41   @Override

    42   public boolean hasFinished()

    43   {

    44     return true;

    45   }

    47   // TODO: Refactor this method to reduce its complexity!

    48   @Override

    49   public void processLine(final String line)

    50     throws IOException

    51   {

    52     final String[] command = line.split(" ");

    54     Article article  = null;

    55     long    artIndex = -1;

    56     if (command.length == 1)

    57     {

    58       article = getCurrentArticle();

    59       if (article == null)

    60       {

    61         printStatus(420, "no current article has been selected");

    62         return;

    63       }

    64     }

    65     else if (command[1].matches(NNTPConnection.MESSAGE_ID_PATTERN))

    66     {

    67       // Message-ID

    68       article = Article.getByMessageID(command[1]);

    69       if (article == null)

    70       {

    71         printStatus(430, "no such article found");

    72         return;

    73       }

    74     }

    75     else

    76     {

    77       // Message Number

    78       try

    79       {

    80         Group currentGroup = connection.getCurrentGroup();

    81         if(currentGroup == null)

    82         {

    83           printStatus(400, "no group selected");

    84           return;

    85         }

    87         artIndex = Long.parseLong(command[1]);

    88         article  = Article.getByArticleNumber(artIndex, currentGroup);

    89       }

    90       catch(NumberFormatException ex)

    91       {

    92         ex.printStackTrace();

    93       }

    94       catch(SQLException ex)

    95       {

    96         ex.printStackTrace();

    97       }

    99       if (article == null)

   100       {

   101         printStatus(423, "no such article number in this group");

   102         return;

   103       }

   104       setCurrentArticle(article);

   105     }

   107     if(command[0].equalsIgnoreCase("ARTICLE"))

   108     {

   109       printStatus(220, artIndex + " " + article.getMessageID()

   110           + " article retrieved - head and body follow");

   112       println(article.getHeaderSource());

   114       println("");

   115       println(article.getBody(), article.getBodyCharset());

   116       println(".");

   117     }

   118     else if(command[0].equalsIgnoreCase("BODY"))

   119     {

   120       printStatus(222, artIndex + " " + article.getMessageID() + " body");

   121       println(article.getBody(), article.getBodyCharset());

   122       println(".");

   123     }

   125     /*

   126      * HEAD: This command is mandatory.

   127      *

   128      * Syntax

   129      *    HEAD message-id

   130      *    HEAD number

   131      *    HEAD

   132      *

   133      * Responses

   134      *

   135      * First form (message-id specified)

   136      *  221 0|n message-id    Headers follow (multi-line)

   137      *  430                   No article with that message-id

   138      *

   139      * Second form (article number specified)

   140      *  221 n message-id      Headers follow (multi-line)

   141      *  412                   No newsgroup selected

   142      *  423                   No article with that number

   143      *

   144      * Third form (current article number used)

   145      *  221 n message-id      Headers follow (multi-line)

   146      *  412                   No newsgroup selected

   147      *  420                   Current article number is invalid

   148      *

   149      * Parameters

   150      *  number        Requested article number

   151      *  n             Returned article number

   152      *  message-id    Article message-id

   153      */

   154     else if(command[0].equalsIgnoreCase("HEAD"))

   155     {

   156       printStatus(221, artIndex + " " + article.getMessageID()

   157           + " Headers follow (multi-line)");

   159       println(article.getHeaderSource());

   160       println(".");

   161     }

   162   }

   164 }

author	chris <chris@marvin>
	Fri, 26 Jun 2009 16:48:50 +0200
changeset 1	6fceb66e1ad7
child 3	2fdc9cc89502
permissions	-rw-r--r--