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6 * to you under the Apache License, Version 2.0 (the *
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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. *
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19
20
21
22 package org.apache.james.smtpserver.core;
23
24 import java.util.ArrayList;
25 import java.util.Collection;
26
27 import org.apache.avalon.framework.logger.AbstractLogEnabled;
28 import org.apache.james.smtpserver.CommandHandler;
29 import org.apache.james.smtpserver.SMTPSession;
30
31 /**
32 * Handles EHLO command
33 */
34 public class EhloCmdHandler extends AbstractLogEnabled implements
35 CommandHandler {
36
37 /**
38 * The name of the command handled by the command handler
39 */
40 private final static String COMMAND_NAME = "EHLO";
41
42 /*
43 * processes EHLO command
44 *
45 * @see org.apache.james.smtpserver.CommandHandler#onCommand(SMTPSession)
46 **/
47 public void onCommand(SMTPSession session) {
48 doEHLO(session, session.getCommandArgument());
49 }
50
51 /**
52 * Handler method called upon receipt of a EHLO command.
53 * Responds with a greeting and informs the client whether
54 * client authentication is required.
55 *
56 * @param session SMTP session object
57 * @param argument the argument passed in with the command by the SMTP client
58 */
59 private void doEHLO(SMTPSession session, String argument) {
60 StringBuffer responseBuffer = session.getResponseBuffer();
61
62 session.getConnectionState().put(SMTPSession.CURRENT_HELO_MODE, COMMAND_NAME);
63
64 ArrayList esmtpextensions = new ArrayList();
65
66 esmtpextensions.add(new StringBuffer(session.getConfigurationData()
67 .getHelloName()).append(" Hello ").append(argument)
68 .append(" (").append(session.getRemoteHost()).append(" [")
69 .append(session.getRemoteIPAddress()).append("])").toString());
70
71 // Extension defined in RFC 1870
72 long maxMessageSize = session.getConfigurationData()
73 .getMaxMessageSize();
74 if (maxMessageSize > 0) {
75 esmtpextensions.add("SIZE " + maxMessageSize);
76 }
77
78 if (session.isAuthRequired()) {
79 esmtpextensions.add("AUTH LOGIN PLAIN");
80 esmtpextensions.add("AUTH=LOGIN PLAIN");
81 }
82
83 esmtpextensions.add("PIPELINING");
84 esmtpextensions.add("ENHANCEDSTATUSCODES");
85 // see http://issues.apache.org/jira/browse/JAMES-419
86 esmtpextensions.add("8BITMIME");
87
88 // Iterator i = esmtpextensions.iterator();
89 for (int i = 0; i < esmtpextensions.size(); i++) {
90 if (i == esmtpextensions.size() - 1) {
91 responseBuffer.append("250 ");
92 responseBuffer.append((String) esmtpextensions.get(i));
93 session.writeResponse(session.clearResponseBuffer());
94 } else {
95 responseBuffer.append("250-");
96 responseBuffer.append((String) esmtpextensions.get(i));
97 session.writeResponse(session.clearResponseBuffer());
98 }
99 }
100
101 }
102
103 /**
104 * @see org.apache.james.smtpserver.CommandHandler#getImplCommands()
105 */
106 public Collection getImplCommands() {
107 Collection implCommands = new ArrayList();
108 implCommands.add("EHLO");
109
110 return implCommands;
111 }
112 }