1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/org/sonews/daemon/command/ArticleCommand.java Wed Jul 01 10:48:22 2009 +0200
1.3 @@ -0,0 +1,164 @@
1.4 +/*
1.5 + * SONEWS News Server
1.6 + * see AUTHORS for the list of contributors
1.7 + *
1.8 + * This program is free software: you can redistribute it and/or modify
1.9 + * it under the terms of the GNU General Public License as published by
1.10 + * the Free Software Foundation, either version 3 of the License, or
1.11 + * (at your option) any later version.
1.12 + *
1.13 + * This program is distributed in the hope that it will be useful,
1.14 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.15 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.16 + * GNU General Public License for more details.
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License
1.19 + * along with this program. If not, see <http://www.gnu.org/licenses/>.
1.20 + */
1.21 +
1.22 +package org.sonews.daemon.command;
1.23 +
1.24 +import java.io.IOException;
1.25 +import java.sql.SQLException;
1.26 +import org.sonews.daemon.storage.Article;
1.27 +import org.sonews.daemon.NNTPConnection;
1.28 +import org.sonews.daemon.storage.Group;
1.29 +
1.30 +/**
1.31 + * Class handling the ARTICLE, BODY and HEAD commands.
1.32 + * @author Christian Lins
1.33 + * @author Dennis Schwerdel
1.34 + * @since n3tpd/0.1
1.35 + */
1.36 +public class ArticleCommand extends AbstractCommand
1.37 +{
1.38 +
1.39 + public ArticleCommand(final NNTPConnection connection)
1.40 + {
1.41 + super(connection);
1.42 + }
1.43 +
1.44 + @Override
1.45 + public boolean hasFinished()
1.46 + {
1.47 + return true;
1.48 + }
1.49 +
1.50 + // TODO: Refactor this method to reduce its complexity!
1.51 + @Override
1.52 + public void processLine(final String line)
1.53 + throws IOException
1.54 + {
1.55 + final String[] command = line.split(" ");
1.56 +
1.57 + Article article = null;
1.58 + long artIndex = -1;
1.59 + if (command.length == 1)
1.60 + {
1.61 + article = getCurrentArticle();
1.62 + if (article == null)
1.63 + {
1.64 + printStatus(420, "no current article has been selected");
1.65 + return;
1.66 + }
1.67 + }
1.68 + else if (command[1].matches(NNTPConnection.MESSAGE_ID_PATTERN))
1.69 + {
1.70 + // Message-ID
1.71 + article = Article.getByMessageID(command[1]);
1.72 + if (article == null)
1.73 + {
1.74 + printStatus(430, "no such article found");
1.75 + return;
1.76 + }
1.77 + }
1.78 + else
1.79 + {
1.80 + // Message Number
1.81 + try
1.82 + {
1.83 + Group currentGroup = connection.getCurrentGroup();
1.84 + if(currentGroup == null)
1.85 + {
1.86 + printStatus(400, "no group selected");
1.87 + return;
1.88 + }
1.89 +
1.90 + artIndex = Long.parseLong(command[1]);
1.91 + article = Article.getByArticleNumber(artIndex, currentGroup);
1.92 + }
1.93 + catch(NumberFormatException ex)
1.94 + {
1.95 + ex.printStackTrace();
1.96 + }
1.97 + catch(SQLException ex)
1.98 + {
1.99 + ex.printStackTrace();
1.100 + }
1.101 +
1.102 + if (article == null)
1.103 + {
1.104 + printStatus(423, "no such article number in this group");
1.105 + return;
1.106 + }
1.107 + setCurrentArticle(article);
1.108 + }
1.109 +
1.110 + if(command[0].equalsIgnoreCase("ARTICLE"))
1.111 + {
1.112 + printStatus(220, artIndex + " " + article.getMessageID()
1.113 + + " article retrieved - head and body follow");
1.114 +
1.115 + println(article.getHeaderSource());
1.116 +
1.117 + println("");
1.118 + println(article.getBody(), article.getBodyCharset());
1.119 + println(".");
1.120 + }
1.121 + else if(command[0].equalsIgnoreCase("BODY"))
1.122 + {
1.123 + printStatus(222, artIndex + " " + article.getMessageID() + " body");
1.124 + println(article.getBody(), article.getBodyCharset());
1.125 + println(".");
1.126 + }
1.127 +
1.128 + /*
1.129 + * HEAD: This command is mandatory.
1.130 + *
1.131 + * Syntax
1.132 + * HEAD message-id
1.133 + * HEAD number
1.134 + * HEAD
1.135 + *
1.136 + * Responses
1.137 + *
1.138 + * First form (message-id specified)
1.139 + * 221 0|n message-id Headers follow (multi-line)
1.140 + * 430 No article with that message-id
1.141 + *
1.142 + * Second form (article number specified)
1.143 + * 221 n message-id Headers follow (multi-line)
1.144 + * 412 No newsgroup selected
1.145 + * 423 No article with that number
1.146 + *
1.147 + * Third form (current article number used)
1.148 + * 221 n message-id Headers follow (multi-line)
1.149 + * 412 No newsgroup selected
1.150 + * 420 Current article number is invalid
1.151 + *
1.152 + * Parameters
1.153 + * number Requested article number
1.154 + * n Returned article number
1.155 + * message-id Article message-id
1.156 + */
1.157 + else if(command[0].equalsIgnoreCase("HEAD"))
1.158 + {
1.159 + printStatus(221, artIndex + " " + article.getMessageID()
1.160 + + " Headers follow (multi-line)");
1.161 +
1.162 + println(article.getHeaderSource());
1.163 + println(".");
1.164 + }
1.165 + }
1.166 +
1.167 +}