chris@1: /* chris@1: * SONEWS News Server chris@1: * see AUTHORS for the list of contributors chris@1: * chris@1: * This program is free software: you can redistribute it and/or modify chris@1: * it under the terms of the GNU General Public License as published by chris@1: * the Free Software Foundation, either version 3 of the License, or chris@1: * (at your option) any later version. chris@1: * chris@1: * This program is distributed in the hope that it will be useful, chris@1: * but WITHOUT ANY WARRANTY; without even the implied warranty of chris@1: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the chris@1: * GNU General Public License for more details. chris@1: * chris@1: * You should have received a copy of the GNU General Public License chris@1: * along with this program. If not, see . chris@1: */ chris@1: chris@1: package org.sonews.daemon.command; chris@1: chris@1: import java.io.IOException; chris@3: import org.sonews.storage.Article; chris@1: import org.sonews.daemon.NNTPConnection; chris@3: import org.sonews.storage.Channel; chris@3: import org.sonews.storage.StorageBackendException; chris@1: chris@1: /** chris@1: * Class handling the ARTICLE, BODY and HEAD commands. chris@1: * @author Christian Lins chris@1: * @author Dennis Schwerdel chris@1: * @since n3tpd/0.1 chris@1: */ chris@3: public class ArticleCommand implements Command chris@1: { chris@3: cli@37: @Override cli@37: public String[] getSupportedCommandStrings() cli@37: { cli@37: return new String[] {"ARTICLE", "BODY", "HEAD"}; cli@37: } chris@1: cli@37: @Override cli@37: public boolean hasFinished() cli@37: { cli@37: return true; cli@37: } chris@1: cli@37: @Override cli@37: public String impliedCapability() cli@37: { cli@37: return null; cli@37: } cli@20: cli@37: @Override cli@37: public boolean isStateful() cli@37: { cli@37: return false; cli@37: } chris@3: cli@37: // TODO: Refactor this method to reduce its complexity! cli@37: @Override cli@37: public void processLine(NNTPConnection conn, final String line, byte[] raw) cli@37: throws IOException cli@37: { cli@37: final String[] command = line.split(" "); chris@1: cli@37: Article article = null; cli@37: long artIndex = -1; cli@37: if (command.length == 1) { cli@37: article = conn.getCurrentArticle(); cli@37: if (article == null) { cli@37: conn.println("420 no current article has been selected"); cli@37: return; cli@37: } cli@37: } else if (command[1].matches(NNTPConnection.MESSAGE_ID_PATTERN)) { cli@37: // Message-ID cli@37: article = Article.getByMessageID(command[1]); cli@37: if (article == null) { cli@37: conn.println("430 no such article found"); cli@37: return; cli@37: } cli@37: } else { cli@37: // Message Number cli@37: try { cli@37: Channel currentGroup = conn.getCurrentChannel(); cli@37: if (currentGroup == null) { cli@37: conn.println("400 no group selected"); cli@37: return; cli@37: } chris@1: cli@37: artIndex = Long.parseLong(command[1]); cli@37: article = currentGroup.getArticle(artIndex); cli@37: } catch (NumberFormatException ex) { cli@37: ex.printStackTrace(); cli@37: } catch (StorageBackendException ex) { cli@37: ex.printStackTrace(); cli@37: } cli@37: cli@37: if (article == null) { cli@37: conn.println("423 no such article number in this group"); cli@37: return; cli@37: } cli@37: conn.setCurrentArticle(article); cli@37: } cli@37: cli@37: if (command[0].equalsIgnoreCase("ARTICLE")) { cli@37: conn.println("220 " + artIndex + " " + article.getMessageID() cli@37: + " article retrieved - head and body follow"); cli@37: conn.println(article.getHeaderSource()); cli@37: conn.println(""); cli@37: conn.println(article.getBody()); cli@37: conn.println("."); cli@37: } else if (command[0].equalsIgnoreCase("BODY")) { cli@37: conn.println("222 " + artIndex + " " + article.getMessageID() + " body"); cli@37: conn.println(article.getBody()); cli@37: conn.println("."); cli@37: } /* cli@37: * HEAD: This command is mandatory. cli@37: * cli@37: * Syntax cli@37: * HEAD message-id cli@37: * HEAD number cli@37: * HEAD cli@37: * cli@37: * Responses cli@37: * cli@37: * First form (message-id specified) cli@37: * 221 0|n message-id Headers follow (multi-line) cli@37: * 430 No article with that message-id cli@37: * cli@37: * Second form (article number specified) cli@37: * 221 n message-id Headers follow (multi-line) cli@37: * 412 No newsgroup selected cli@37: * 423 No article with that number cli@37: * cli@37: * Third form (current article number used) cli@37: * 221 n message-id Headers follow (multi-line) cli@37: * 412 No newsgroup selected cli@37: * 420 Current article number is invalid cli@37: * cli@37: * Parameters cli@37: * number Requested article number cli@37: * n Returned article number cli@37: * message-id Article message-id cli@37: */ else if (command[0].equalsIgnoreCase("HEAD")) { cli@37: conn.println("221 " + artIndex + " " + article.getMessageID() cli@37: + " Headers follow (multi-line)"); cli@37: conn.println(article.getHeaderSource()); cli@37: conn.println("."); cli@37: } cli@37: } chris@1: }