| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.ftpserver.command.impl; |
| |
| import java.io.IOException; |
| import java.text.ParseException; |
| import java.util.Date; |
| |
| import org.apache.ftpserver.command.AbstractCommand; |
| import org.apache.ftpserver.ftplet.FtpFile; |
| import org.apache.ftpserver.ftplet.FtpReply; |
| import org.apache.ftpserver.ftplet.FtpRequest; |
| import org.apache.ftpserver.impl.FtpIoSession; |
| import org.apache.ftpserver.impl.FtpServerContext; |
| import org.apache.ftpserver.impl.LocalizedFtpReply; |
| import org.apache.ftpserver.util.DateUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Command for changing the modified time of a file. |
| * <p> |
| * Specified in the following document: |
| * http://www.omz13.com/downloads/draft-somers-ftp-mfxx-00.html#anchor8 |
| * </p> |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| */ |
| public class MFMT extends AbstractCommand { |
| |
| private final Logger LOG = LoggerFactory.getLogger(MFMT.class); |
| |
| /** |
| * Execute command. |
| */ |
| public void execute(final FtpIoSession session, |
| final FtpServerContext context, final FtpRequest request) |
| throws IOException { |
| |
| |
| // reset state variables |
| session.resetState(); |
| |
| String argument = request.getArgument(); |
| |
| if (argument == null || argument.trim().length() == 0) { |
| session |
| .write(LocalizedFtpReply |
| .translate( |
| session, |
| request, |
| context, |
| FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS, |
| "MFMT.invalid", null)); |
| return; |
| } |
| |
| String[] arguments = argument.split(" ",2); |
| |
| if(arguments.length != 2) { |
| session |
| .write(LocalizedFtpReply |
| .translate( |
| session, |
| request, |
| context, |
| FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS, |
| "MFMT.invalid", null)); |
| return; |
| } |
| |
| String timestamp = arguments[0].trim(); |
| |
| try { |
| |
| Date time = DateUtils.parseFTPDate(timestamp); |
| |
| String fileName = arguments[1].trim(); |
| |
| // get file object |
| FtpFile file = null; |
| |
| try { |
| file = session.getFileSystemView().getFile(fileName); |
| } catch (Exception ex) { |
| LOG.debug("Exception getting the file object: " + fileName, ex); |
| } |
| |
| if (file == null || !file.doesExist()) { |
| session |
| .write(LocalizedFtpReply |
| .translate( |
| session, |
| request, |
| context, |
| FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN, |
| "MFMT.filemissing", fileName)); |
| return; |
| } |
| |
| // check file |
| if (!file.isFile()) { |
| session |
| .write(LocalizedFtpReply |
| .translate( |
| session, |
| request, |
| context, |
| FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS, |
| "MFMT.invalid", null)); |
| return; |
| } |
| |
| // check if we can set date and retrieve the actual date stored for the file. |
| if (!file.setLastModified(time.getTime())) { |
| // we couldn't set the date, possibly the file was locked |
| session.write(LocalizedFtpReply.translate(session, request, context, |
| FtpReply.REPLY_450_REQUESTED_FILE_ACTION_NOT_TAKEN, "MFMT", |
| fileName)); |
| return; |
| } |
| |
| // all checks okay, lets go |
| session |
| .write(LocalizedFtpReply |
| .translate( |
| session, |
| request, |
| context, |
| FtpReply.REPLY_213_FILE_STATUS, |
| "MFMT", "ModifyTime=" + timestamp + "; " + fileName)); |
| return; |
| |
| } catch (ParseException e) { |
| session |
| .write(LocalizedFtpReply |
| .translate( |
| session, |
| request, |
| context, |
| FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS, |
| "MFMT.invalid", null)); |
| return; |
| } |
| |
| |
| } |
| } |