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@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 GROUP command. chris@1: *
chris@1:  *  Syntax
chris@1:  *    GROUP group
chris@1:  *
chris@1:  *  Responses
chris@1:  *    211 number low high group     Group successfully selected
chris@1:  *    411                           No such newsgroup
chris@1:  *
chris@1:  *  Parameters
chris@1:  *    group     Name of newsgroup
chris@1:  *    number    Estimated number of articles in the group
chris@1:  *    low       Reported low water mark
chris@1:  *    high      Reported high water mark
chris@1:  * 
chris@1: * (from RFC 3977) chris@1: * chris@1: * @author Christian Lins chris@1: * @author Dennis Schwerdel chris@1: * @since n3tpd/0.1 chris@1: */ chris@3: public class GroupCommand implements Command chris@1: { chris@1: cli@37: @Override cli@37: public String[] getSupportedCommandStrings() cli@37: { cli@37: return new String[] {"GROUP"}; cli@37: } chris@1: cli@37: @Override cli@37: public boolean hasFinished() cli@37: { cli@37: return true; cli@37: } chris@3: 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 true; cli@37: } chris@1: cli@37: @Override cli@37: public void processLine(NNTPConnection conn, final String line, byte[] raw) cli@37: throws IOException, StorageBackendException cli@37: { cli@37: final String[] command = line.split(" "); chris@1: cli@37: Channel group; cli@37: if (command.length >= 2) { cli@37: group = Channel.getByName(command[1]); cli@37: if (group == null || group.isDeleted()) { cli@37: conn.println("411 no such news group"); cli@37: } else { cli@37: conn.setCurrentGroup(group); cli@37: conn.println("211 " + group.getPostingsCount() + " " + group.getFirstArticleNumber() cli@37: + " " + group.getLastArticleNumber() + " " + group.getName() + " group selected"); cli@37: } cli@37: } else { cli@37: conn.println("500 no group name given"); cli@37: } cli@37: } chris@1: }