| /* |
| * 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.util.HashMap; |
| |
| import org.apache.ftpserver.command.AbstractCommand; |
| import org.apache.ftpserver.command.Command; |
| import org.apache.ftpserver.ftplet.FtpException; |
| 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.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * <strong>Internal class, do not use directly.</strong> |
| * |
| * <code>OPTS<SP> <command> <SP> <option> <CRLF></code><br> |
| * |
| * This command shall cause the server use optional features for the command |
| * specified. |
| * |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| */ |
| public class OPTS extends AbstractCommand { |
| |
| private final Logger LOG = LoggerFactory.getLogger(OPTS.class); |
| |
| private static final HashMap<String, Command> COMMAND_MAP = new HashMap<String, Command>( |
| 16); |
| |
| /** |
| * Execute command. |
| */ |
| public void execute(final FtpIoSession session, |
| final FtpServerContext context, final FtpRequest request) |
| throws IOException, FtpException { |
| |
| // reset state |
| session.resetState(); |
| |
| // no params |
| String argument = request.getArgument(); |
| if (argument == null) { |
| session.write(LocalizedFtpReply.translate(session, request, context, |
| FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS, |
| "OPTS", null)); |
| return; |
| } |
| |
| // get request name |
| int spaceIndex = argument.indexOf(' '); |
| if (spaceIndex != -1) { |
| argument = argument.substring(0, spaceIndex); |
| } |
| argument = argument.toUpperCase(); |
| |
| // call appropriate command method |
| String optsRequest = "OPTS_" + argument; |
| Command command = COMMAND_MAP.get(optsRequest); |
| try { |
| if (command != null) { |
| command.execute(session, context, request); |
| } else { |
| session.resetState(); |
| session.write(LocalizedFtpReply.translate(session, request, context, |
| FtpReply.REPLY_502_COMMAND_NOT_IMPLEMENTED, |
| "OPTS.not.implemented", argument)); |
| } |
| } catch (Exception ex) { |
| LOG.warn("OPTS.execute()", ex); |
| session.resetState(); |
| session.write(LocalizedFtpReply.translate(session, request, context, |
| FtpReply.REPLY_500_SYNTAX_ERROR_COMMAND_UNRECOGNIZED, |
| "OPTS", null)); |
| } |
| } |
| |
| // initialize all the OPTS command handlers |
| static { |
| COMMAND_MAP.put("OPTS_MLST", |
| new org.apache.ftpserver.command.impl.OPTS_MLST()); |
| COMMAND_MAP.put("OPTS_UTF8", |
| new org.apache.ftpserver.command.impl.OPTS_UTF8()); |
| } |
| } |