CwdCommandHandler.java revision ef13cb2302efe30bdff397e11aae379cbb419b9b
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 CWD 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 and terminate</li> 28 * <li>If the pathname parameter does not specify an existing directory, then reply with 550 and terminate</li> 29 * <li>If the current user does not have execute access to the directory, then reply with 550 and terminate</li> 30 * <li>Otherwise, reply with 250 and change the current directory stored in the session</li> 31 * </ol> 32 * The supplied pathname may be absolute or relative to the current directory. 33 * 34 * @author Chris Mair 35 * @version $Revision: 136 $ - $Date: 2008-10-23 22:17:29 -0400 (Thu, 23 Oct 2008) $ 36 */ 37public class CwdCommandHandler extends AbstractFakeCommandHandler { 38 39 protected void handle(Command command, Session session) { 40 verifyLoggedIn(session); 41 String path = getRealPath(session, command.getRequiredParameter(0)); 42 43 this.replyCodeForFileSystemException = ReplyCodes.READ_FILE_ERROR; 44 verifyFileSystemCondition(getFileSystem().exists(path), path, "filesystem.doesNotExist"); 45 verifyFileSystemCondition(getFileSystem().isDirectory(path), path, "filesystem.isNotADirectory"); 46 47 // User must have execute permission to the directory 48 verifyExecutePermission(session, path); 49 50 session.setAttribute(SessionKeys.CURRENT_DIRECTORY, path); 51 sendReply(session, ReplyCodes.CWD_OK, "cwd", list(path)); 52 } 53 54}