1/*
2 * Copyright 2008 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package org.mockftpserver.fake.command;
17
18import org.mockftpserver.core.command.Command;
19import org.mockftpserver.core.command.ReplyCodes;
20import org.mockftpserver.core.session.Session;
21import org.mockftpserver.fake.filesystem.DirectoryEntry;
22
23/**
24 * CommandHandler for the MKD command. Handler logic:
25 * <ol>
26 * <li>If the user has not logged in, then reply with 530</li>
27 * <li>If the required pathname parameter is missing, then reply with 501</li>
28 * <li>If the parent directory of the specified pathname does not exist, then reply with 550</li>
29 * <li>If the pathname parameter specifies an existing file or directory, or if the create directory fails, then reply with 550</li>
30 * <li>If the current user does not have write and execute access to the parent directory, then reply with 550</li>
31 * <li>Otherwise, reply with 257</li>
32 * </ol>
33 * The supplied pathname may be absolute or relative to the current directory.
34 *
35 * @author Chris Mair
36 * @version $Revision$ - $Date$
37 */
38public class MkdCommandHandler extends AbstractFakeCommandHandler {
39
40    protected void handle(Command command, Session session) {
41        verifyLoggedIn(session);
42        String path = getRealPath(session, command.getRequiredParameter(0));
43        String parent = getFileSystem().getParent(path);
44
45        this.replyCodeForFileSystemException = ReplyCodes.READ_FILE_ERROR;
46        verifyFileSystemCondition(getFileSystem().exists(parent), parent, "filesystem.doesNotExist");
47        verifyFileSystemCondition(!getFileSystem().exists(path), path, "filesystem.alreadyExists");
48
49        // User must have write permission to the parent directory
50        verifyWritePermission(session, parent);
51
52        // User must have execute permission to the parent directory
53        verifyExecutePermission(session, parent);
54
55        DirectoryEntry dirEntry = new DirectoryEntry(path);
56        getFileSystem().add(dirEntry);
57        dirEntry.setPermissions(getUserAccount(session).getDefaultPermissionsForNewDirectory());
58
59        sendReply(session, ReplyCodes.MKD_OK, "mkd", list(path));
60    }
61
62}