01: /****************************************************************
02: * Licensed to the Apache Software Foundation (ASF) under one *
03: * or more contributor license agreements. See the NOTICE file *
04: * distributed with this work for additional information *
05: * regarding copyright ownership. The ASF licenses this file *
06: * to you under the Apache License, Version 2.0 (the *
07: * "License"); you may not use this file except in compliance *
08: * with the License. You may obtain a copy of the License at *
09: * *
10: * http://www.apache.org/licenses/LICENSE-2.0 *
11: * *
12: * Unless required by applicable law or agreed to in writing, *
13: * software distributed under the License is distributed on an *
14: * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *
15: * KIND, either express or implied. See the License for the *
16: * specific language governing permissions and limitations *
17: * under the License. *
18: ****************************************************************/package org.apache.james.smtpserver;
19:
20: import org.apache.james.util.mail.dsn.DSNStatus;
21:
22: /**
23: * Handles QUIT command
24: */
25: public class QuitCmdHandler implements CommandHandler {
26:
27: /**
28: * The name of the command handled by the command handler
29: */
30: private final static String COMMAND_NAME = "QUIT";
31:
32: /**
33: * handles QUIT command
34: *
35: * @see org.apache.james.smtpserver.CommandHandler#onCommand(SMTPSession)
36: */
37: public void onCommand(SMTPSession session) {
38: doQUIT(session, session.getCommandArgument());
39:
40: }
41:
42: /**
43: * Handler method called upon receipt of a QUIT command.
44: * This method informs the client that the connection is
45: * closing.
46: *
47: * @param session SMTP session object
48: * @param argument the argument passed in with the command by the SMTP client
49: */
50: private void doQUIT(SMTPSession session, String argument) {
51:
52: String responseString = "";
53: if ((argument == null) || (argument.length() == 0)) {
54: session.getResponseBuffer().append(
55: "221 "
56: + DSNStatus.getStatus(DSNStatus.SUCCESS,
57: DSNStatus.UNDEFINED_STATUS) + " ")
58: .append(
59: session.getConfigurationData()
60: .getHelloName()).append(
61: " Service closing transmission channel");
62: responseString = session.clearResponseBuffer();
63: } else {
64: responseString = "500 "
65: + DSNStatus.getStatus(DSNStatus.PERMANENT,
66: DSNStatus.DELIVERY_INVALID_ARG)
67: + " Unexpected argument provided with QUIT command";
68: }
69: session.writeResponse(responseString);
70: session.endSession();
71: }
72:
73: }
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