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1
5 package com.coldcore.coloradoftp.command.impl.ftp;
6
7 import com.coldcore.coloradoftp.command.Reply;
8 import com.coldcore.coloradoftp.command.impl.AbstractCommand;
9 import com.coldcore.coloradoftp.session.LoginState;
10 import com.coldcore.coloradoftp.session.Session;
11 import com.coldcore.coloradoftp.session.SessionAttributeName;
12 import org.apache.log4j.Logger;
13
14 public class UserCommand extends AbstractCommand {
15
16 private static Logger log = Logger.getLogger(UserCommand.class);
17 private boolean anonymous;
18
19
20 public UserCommand() {
21 anonymous = true;
22 }
23
24
25 public boolean isAnonymous() {
26 return anonymous;
27 }
28
29
30 public void setAnonymous(boolean anonymous) {
31 this.anonymous = anonymous;
32 }
33
34
35 public Reply execute() {
36 Reply reply = getReply();
37
38 String  username = getParameter();
39 username = username.toLowerCase();
40
41 Session session = getConnection().getSession();
42 LoginState loginState = (LoginState) session.getAttribute(SessionAttributeName.LOGIN_STATE);
43 if (loginState != null) {
44 log.debug("Already logged in user submits USER command again");
45 reply.setCode("503");
46 reply.setText("Already logged in.");
47 return reply;
48 }
49
50 session.removeAttribute(SessionAttributeName.USERNAME);
51
52 if (username.length() == 0) {
53 log.debug("Invalid syntax of submitted username");
54 reply.setCode("501");
55 reply.setText("Send your user name.");
56 return reply;
57 }
58
59 if (username.equals("anonymous") && !anonymous) {
60 log.debug("Anonymous login is disabled");
61 reply.setCode("332");
62 reply.setText("Anonymous login disabled, need account for login.");
63 return reply;
64 }
65
66 session.setAttribute(SessionAttributeName.USERNAME, username);
67 log.debug("Accepted username: "+username);
68
69 if (username.equals("anonymous")) {
70 reply.setCode("331");
71 reply.setText("Guest login okay, send your complete e-mail address as password.");
72 return reply;
73 }
74
75 reply.setCode("331");
76 reply.setText("User name okay, need password.");
77 return reply;
78 }
79 }
80 |
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