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 <http://www.gnu.org/licenses/>.
chris@1:  */
chris@1: 
chris@1: package org.sonews.daemon.command;
chris@1: 
chris@1: import java.io.IOException;
chris@1: import java.sql.SQLException;
chris@1: import org.sonews.daemon.NNTPConnection;
chris@1: 
chris@1: /**
chris@1:  * <pre>
chris@1:  *   XPAT header range|<message-id> pat [pat...]
chris@1:  *
chris@1:  *   The XPAT command is used to retrieve specific headers from
chris@1:  *   specific articles, based on pattern matching on the contents of
chris@1:  *   the header. This command was first available in INN.
chris@1:  *
chris@1:  *   The required header parameter is the name of a header line (e.g.
chris@1:  *   "subject") in a news group article. See RFC-1036 for a list
chris@1:  *   of valid header lines. The required range argument may be
chris@1:  *   any of the following:
chris@1:  *               an article number
chris@1:  *               an article number followed by a dash to indicate
chris@1:  *                  all following
chris@1:  *               an article number followed by a dash followed by
chris@1:  *                  another article number
chris@1:  *
chris@1:  *   The required message-id argument indicates a specific
chris@1:  *   article. The range and message-id arguments are mutually
chris@1:  *   exclusive. At least one pattern in wildmat must be specified
chris@1:  *   as well. If there are additional arguments the are joined
chris@1:  *   together separated by a single space to form one complete
chris@1:  *   pattern. Successful responses start with a 221 response
chris@1:  *   followed by a the headers from all messages in which the
chris@1:  *   pattern matched the contents of the specified header line. This
chris@1:  *   includes an empty list. Once the output is complete, a period
chris@1:  *   is sent on a line by itself. If the optional argument is a
chris@1:  *   message-id and no such article exists, the 430 error response
chris@1:  *   is returned. A 502 response will be returned if the client only
chris@1:  *   has permission to transfer articles.
chris@1:  *
chris@1:  *   Responses
chris@1:  *
chris@1:  *       221 Header follows
chris@1:  *       430 no such article
chris@1:  *       502 no permission
chris@1:  * </pre>
chris@1:  * [Source:"draft-ietf-nntp-imp-02.txt"] [Copyright: 1998 S. Barber]
chris@1:  * 
chris@1:  * @author Christian Lins
chris@1:  * @since sonews/0.5.0
chris@1:  */
chris@1: public class XPatCommand extends AbstractCommand
chris@1: {
chris@1: 
chris@1:   public XPatCommand(final NNTPConnection conn)
chris@1:   {
chris@1:     super(conn);
chris@1:   }
chris@1:   
chris@1:   @Override
chris@1:   public boolean hasFinished()
chris@1:   {
chris@1:     return true;
chris@1:   }
chris@1: 
chris@1:   @Override
chris@1:   public void processLine(final String line) 
chris@1:     throws IOException, SQLException
chris@1:   {
chris@1:     printStatus(500, "not (yet) supported");
chris@1:   }
chris@1: 
chris@1: }