author | cli |
Sat May 01 18:51:57 2010 +0200 (2010-05-01) | |
changeset 29 | 60c237bb677a |
parent 3 | 2fdc9cc89502 |
permissions | -rw-r--r-- |
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/* |
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* SONEWS News Server |
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* see AUTHORS for the list of contributors |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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|
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package org.sonews.daemon.command; |
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|
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import java.io.IOException; |
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import org.sonews.storage.Article; |
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import org.sonews.daemon.NNTPConnection; |
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import org.sonews.storage.Channel; |
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import org.sonews.storage.StorageBackendException; |
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|
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/** |
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* Class handling the ARTICLE, BODY and HEAD commands. |
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* @author Christian Lins |
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* @author Dennis Schwerdel |
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* @since n3tpd/0.1 |
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*/ |
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public class ArticleCommand implements Command |
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{ |
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|
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@Override |
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public String[] getSupportedCommandStrings() |
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{ |
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return new String[] {"ARTICLE", "BODY", "HEAD"}; |
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} |
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|
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@Override |
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public boolean hasFinished() |
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{ |
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return true; |
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} |
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|
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@Override |
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public String impliedCapability() |
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{ |
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return null; |
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} |
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|
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@Override |
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public boolean isStateful() |
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{ |
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return false; |
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} |
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|
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// TODO: Refactor this method to reduce its complexity! |
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@Override |
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public void processLine(NNTPConnection conn, final String line, byte[] raw) |
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throws IOException |
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{ |
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final String[] command = line.split(" "); |
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|
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Article article = null; |
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long artIndex = -1; |
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if (command.length == 1) |
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{ |
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article = conn.getCurrentArticle(); |
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if (article == null) |
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{ |
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conn.println("420 no current article has been selected"); |
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return; |
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} |
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} |
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else if (command[1].matches(NNTPConnection.MESSAGE_ID_PATTERN)) |
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{ |
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// Message-ID |
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article = Article.getByMessageID(command[1]); |
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if (article == null) |
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{ |
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conn.println("430 no such article found"); |
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return; |
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} |
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} |
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else |
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{ |
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// Message Number |
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try |
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{ |
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Channel currentGroup = conn.getCurrentChannel(); |
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if(currentGroup == null) |
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{ |
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conn.println("400 no group selected"); |
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return; |
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} |
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|
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artIndex = Long.parseLong(command[1]); |
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article = currentGroup.getArticle(artIndex); |
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} |
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catch(NumberFormatException ex) |
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{ |
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ex.printStackTrace(); |
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} |
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catch(StorageBackendException ex) |
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{ |
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ex.printStackTrace(); |
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} |
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|
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if (article == null) |
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{ |
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conn.println("423 no such article number in this group"); |
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return; |
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} |
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conn.setCurrentArticle(article); |
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} |
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|
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if(command[0].equalsIgnoreCase("ARTICLE")) |
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{ |
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conn.println("220 " + artIndex + " " + article.getMessageID() |
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+ " article retrieved - head and body follow"); |
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conn.println(article.getHeaderSource()); |
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conn.println(""); |
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conn.println(article.getBody()); |
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conn.println("."); |
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} |
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else if(command[0].equalsIgnoreCase("BODY")) |
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{ |
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conn.println("222 " + artIndex + " " + article.getMessageID() + " body"); |
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conn.println(article.getBody()); |
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conn.println("."); |
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} |
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|
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/* |
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* HEAD: This command is mandatory. |
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* |
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* Syntax |
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* HEAD message-id |
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* HEAD number |
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* HEAD |
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* |
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* Responses |
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* |
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* First form (message-id specified) |
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* 221 0|n message-id Headers follow (multi-line) |
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* 430 No article with that message-id |
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* |
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* Second form (article number specified) |
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* 221 n message-id Headers follow (multi-line) |
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* 412 No newsgroup selected |
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* 423 No article with that number |
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* |
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* Third form (current article number used) |
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* 221 n message-id Headers follow (multi-line) |
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* 412 No newsgroup selected |
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* 420 Current article number is invalid |
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* |
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* Parameters |
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* number Requested article number |
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* n Returned article number |
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* message-id Article message-id |
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*/ |
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else if(command[0].equalsIgnoreCase("HEAD")) |
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{ |
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conn.println("221 " + artIndex + " " + article.getMessageID() |
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+ " Headers follow (multi-line)"); |
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conn.println(article.getHeaderSource()); |
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conn.println("."); |
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} |
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} |
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|
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} |