/****************************************************************
* Licensed to the Apache Software Foundation (ASF) under one *
* or more contributor license agreements. See the NOTICE file *
* distributed with this work for additional information *
* regarding copyright ownership. The ASF licenses this file *
* to you under the Apache License, Version 2.0 (the *
* "License"); you may not use this file except in compliance *
* with the License. You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, *
* software distributed under the License is distributed on an *
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *
* KIND, either express or implied. See the License for the *
* specific language governing permissions and limitations *
* under the License. *
****************************************************************/
package org.apache.james.smtpserver;
import org.apache.james.util.mail.dsn.DSNStatus;
/**
* Handles QUIT command
*/
public class QuitCmdHandler implements CommandHandler {
/**
* The name of the command handled by the command handler
*/
private final static String COMMAND_NAME = "QUIT";
/**
* handles QUIT command
*
* @see org.apache.james.smtpserver.CommandHandler#onCommand(SMTPSession)
*/
public void onCommand(SMTPSession session) {
doQUIT(session, session.getCommandArgument());
}
/**
* Handler method called upon receipt of a QUIT command.
* This method informs the client that the connection is
* closing.
*
* @param session SMTP session object
* @param argument the argument passed in with the command by the SMTP client
*/
private void doQUIT(SMTPSession session, String argument) {
String responseString = "";
if ((argument == null) || (argument.length() == 0)) {
session.getResponseBuffer().append("221 "+DSNStatus.getStatus(DSNStatus.SUCCESS,DSNStatus.UNDEFINED_STATUS)+" ")
.append(session.getConfigurationData().getHelloName())
.append(" Service closing transmission channel");
responseString = session.clearResponseBuffer();
} else {
responseString = "500 "+DSNStatus.getStatus(DSNStatus.PERMANENT,DSNStatus.DELIVERY_INVALID_ARG)+" Unexpected argument provided with QUIT command";
}
session.writeResponse(responseString);
session.endSession();
}
}
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