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/*
* Copyright 2008 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.mockftpserver.fake.command;
import org.mockftpserver.core.command.Command;
import org.mockftpserver.core.command.ReplyCodes;
import org.mockftpserver.core.session.Session;
import org.mockftpserver.core.session.SessionKeys;
/**
* CommandHandler for the CDUP command. Handler logic:
* <ol>
* <li>If the user has not logged in, then reply with 530</li>
* <li>If the current directory has no parent or if the current directory cannot be changed, then reply with 550 and terminate</li>
* <li>If the current user does not have execute access to the parent directory, then reply with 550 and terminate</li>
* <li>Otherwise, reply with 200 and change the current directory stored in the session to the parent directory</li>
* </ol>
*
* @author Chris Mair
* @version $Revision$ - $Date$
*/
public class CdupCommandHandler extends AbstractFakeCommandHandler {
protected void handle(Command command, Session session) {
verifyLoggedIn(session);
String currentDirectory = (String) getRequiredSessionAttribute(session, SessionKeys.CURRENT_DIRECTORY);
String path = getFileSystem().getParent(currentDirectory);
this.replyCodeForFileSystemException = ReplyCodes.READ_FILE_ERROR;
verifyFileSystemCondition(notNullOrEmpty(path), currentDirectory, "filesystem.parentDirectoryDoesNotExist");
verifyFileSystemCondition(getFileSystem().isDirectory(path), path, "filesystem.isNotADirectory");
// User must have execute permission to the parent directory
verifyExecutePermission(session, path);
session.setAttribute(SessionKeys.CURRENT_DIRECTORY, path);
sendReply(session, ReplyCodes.CDUP_OK, "cdup", list(path));
}
}
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