1a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair/*
2a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * Copyright 2008 the original author or authors.
3a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair *
4a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * Licensed under the Apache License, Version 2.0 (the "License");
5a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * you may not use this file except in compliance with the License.
6a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * You may obtain a copy of the License at
7a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair *
8a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair *      http://www.apache.org/licenses/LICENSE-2.0
9a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair *
10a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * Unless required by applicable law or agreed to in writing, software
11a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * distributed under the License is distributed on an "AS IS" BASIS,
12a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * See the License for the specific language governing permissions and
14a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * limitations under the License.
15a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair */
16a0ad464efff5f5e2d2523a3522cce6823ce05858chrismairpackage org.mockftpserver.fake.command;
17a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair
18a0ad464efff5f5e2d2523a3522cce6823ce05858chrismairimport org.mockftpserver.core.command.Command;
19a0ad464efff5f5e2d2523a3522cce6823ce05858chrismairimport org.mockftpserver.core.command.ReplyCodes;
20a0ad464efff5f5e2d2523a3522cce6823ce05858chrismairimport org.mockftpserver.core.session.Session;
21a0ad464efff5f5e2d2523a3522cce6823ce05858chrismairimport org.mockftpserver.core.session.SessionKeys;
22a0ad464efff5f5e2d2523a3522cce6823ce05858chrismairimport org.mockftpserver.fake.UserAccount;
23a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair
24a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair/**
25a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * CommandHandler for the USER command. Handler logic:
26a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * <ol>
27a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * <li>If the required pathname parameter is missing, then reply with 501</li>
28a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * <li>If the user account configured for the named user is not valid, then reply with 530</li>
29a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * <li>If the named user does not need a password for login, then set the UserAccount and
30a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * current directory in the session, and reply with 230</li>
31a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * <li>Otherwise, set the username in the session and reply with 331</li>
32a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * </ol>
33a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair *
34a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * @author Chris Mair
35a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair * @version $Revision$ - $Date$
36a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair */
37a0ad464efff5f5e2d2523a3522cce6823ce05858chrismairpublic class UserCommandHandler extends AbstractFakeCommandHandler {
38a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair
39a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair    protected void handle(Command command, Session session) {
40a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair        String username = command.getRequiredParameter(0);
41a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair        UserAccount userAccount = getServerConfiguration().getUserAccount(username);
42a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair
43a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair        if (userAccount != null) {
44a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair            if (!validateUserAccount(username, session)) {
45a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair                return;
46a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair            }
47a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair
48a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair            // If the UserAccount is configured to not require password for login
49a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair            if (!userAccount.isPasswordRequiredForLogin()) {
50a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair                login(userAccount, session, ReplyCodes.USER_LOGGED_IN_OK, "user.loggedIn");
51a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair                return;
52a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair            }
53a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair        }
54a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair        session.setAttribute(SessionKeys.USERNAME, username);
55a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair        sendReply(session, ReplyCodes.USER_NEED_PASSWORD_OK, "user.needPassword");
56a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair    }
57a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair
58a0ad464efff5f5e2d2523a3522cce6823ce05858chrismair}