chrismair | 00dc7bd | 2014-05-11 21:21:28 +0000 | [diff] [blame] | 1 | /*
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| 2 | * Copyright 2007 the original author or authors.
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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| 16 | package org.mockftpserver.stub.command;
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| 17 |
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| 18 | import org.mockftpserver.core.command.Command;
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| 19 | import org.mockftpserver.core.command.CommandHandler;
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| 20 | import org.mockftpserver.core.command.InvocationRecord;
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| 21 | import org.mockftpserver.core.command.ReplyCodes;
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| 22 | import org.mockftpserver.core.session.Session;
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| 23 | import org.mockftpserver.core.util.Assert;
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| 24 | import org.mockftpserver.core.util.PortParser;
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| 25 |
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| 26 | import java.io.IOException;
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| 27 | import java.net.InetAddress;
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| 28 |
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| 29 | /**
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| 30 | * CommandHandler for the PASV (Passove Mode) command. Request the Session to switch to passive
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| 31 | * data connection mode. Return a reply code of 227, along with response text of the form:
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| 32 | * "<i>Entering Passive Mode. (h1,h2,h3,h4,p1,p2)</i>", where <i>h1..h4</i> are the 4
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| 33 | * bytes of the 32-bit internet host address of the server, and <i>p1..p2</i> are the 2
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| 34 | * bytes of the 16-bit TCP port address of the data connection on the server to which
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| 35 | * the client must connect. See RFC959 for more information.
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| 36 | * <p/>
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| 37 | * Each invocation record stored by this CommandHandler contains no data elements.
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| 38 | *
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| 39 | * @author Chris Mair
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| 40 | * @version $Revision$ - $Date$
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| 41 | */
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| 42 | public class PasvCommandHandler extends AbstractStubCommandHandler implements CommandHandler {
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| 43 |
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| 44 | /**
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| 45 | * Constructor. Initialize the replyCode.
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| 46 | */
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| 47 | public PasvCommandHandler() {
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| 48 | setReplyCode(ReplyCodes.PASV_OK);
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| 49 | }
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| 50 |
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| 51 | /**
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| 52 | * @throws IOException
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| 53 | * @see org.mockftpserver.core.command.CommandHandler#handleCommand(org.mockftpserver.core.command.Command, org.mockftpserver.core.session.Session)
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| 54 | */
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| 55 | public void handleCommand(Command command, Session session, InvocationRecord invocationRecord)
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| 56 | throws IOException {
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| 57 |
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| 58 | int port = session.switchToPassiveMode();
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| 59 | InetAddress server = session.getServerHost();
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| 60 |
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| 61 | Assert.isTrue(port > -1, "The server-side port is invalid: " + port);
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| 62 | LOG.debug("server=" + server + " port=" + port);
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| 63 | String hostAndPort = "(" + PortParser.convertHostAndPortToCommaDelimitedBytes(server, port) + ")";
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| 64 |
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| 65 | sendReply(session, hostAndPort);
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| 66 | }
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| 67 |
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| 68 | }
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