CdupCommandHandler.java revision e05d3ea57d7e78312ed9a25b6c50a4b1258fd5d2
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.core.session.SessionKeys; 22 23/** 24 * CommandHandler for the CDUP command. Handler logic: 25 * <ol> 26 * <li>If the user has not logged in, then reply with 530</li> 27 * <li>If the current directory has no parent or if the current directory cannot be changed, then reply with 550 and terminate</li> 28 * <li>If the current user does not have execute access to the parent directory, then reply with 550 and terminate</li> 29 * <li>Otherwise, reply with 200 and change the current directory stored in the session to the parent directory</li> 30 * </ol> 31 * 32 * @author Chris Mair 33 * @version $Revision: 164 $ - $Date: 2008-11-18 21:00:39 -0500 (Tue, 18 Nov 2008) $ 34 */ 35public class CdupCommandHandler extends AbstractFakeCommandHandler { 36 37 protected void handle(Command command, Session session) { 38 verifyLoggedIn(session); 39 String currentDirectory = (String) getRequiredSessionAttribute(session, SessionKeys.CURRENT_DIRECTORY); 40 String path = getFileSystem().getParent(currentDirectory); 41 42 this.replyCodeForFileSystemException = ReplyCodes.READ_FILE_ERROR; 43 verifyFileSystemCondition(notNullOrEmpty(path), currentDirectory, "filesystem.parentDirectoryDoesNotExist"); 44 verifyFileSystemCondition(getFileSystem().isDirectory(path), path, "filesystem.isNotADirectory"); 45 46 // User must have execute permission to the parent directory 47 verifyExecutePermission(session, path); 48 49 session.setAttribute(SessionKeys.CURRENT_DIRECTORY, path); 50 sendReply(session, ReplyCodes.CDUP_OK, "cdup", list(path)); 51 } 52 53}