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diff --git a/tags/2.1/src/main/java/org/mockftpserver/stub/command/PasvCommandHandler.java b/tags/2.1/src/main/java/org/mockftpserver/stub/command/PasvCommandHandler.java
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+/*
+ * Copyright 2007 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.stub.command;
+
+import org.mockftpserver.core.command.Command;
+import org.mockftpserver.core.command.CommandHandler;
+import org.mockftpserver.core.command.InvocationRecord;
+import org.mockftpserver.core.command.ReplyCodes;
+import org.mockftpserver.core.session.Session;
+import org.mockftpserver.core.util.Assert;
+import org.mockftpserver.core.util.PortParser;
+
+import java.io.IOException;
+import java.net.InetAddress;
+
+/**
+ * CommandHandler for the PASV (Passove Mode) command. Request the Session to switch to passive
+ * data connection mode. Return a reply code of 227, along with response text of the form:
+ * "<i>Entering Passive Mode. (h1,h2,h3,h4,p1,p2)</i>", where <i>h1..h4</i> are the 4
+ * bytes of the 32-bit internet host address of the server, and <i>p1..p2</i> are the 2
+ * bytes of the 16-bit TCP port address of the data connection on the server to which
+ * the client must connect. See RFC959 for more information.
+ * <p/>
+ * Each invocation record stored by this CommandHandler contains no data elements.
+ *
+ * @author Chris Mair
+ * @version $Revision$ - $Date$
+ */
+public class PasvCommandHandler extends AbstractStubCommandHandler implements CommandHandler {
+
+ /**
+ * Constructor. Initialize the replyCode.
+ */
+ public PasvCommandHandler() {
+ setReplyCode(ReplyCodes.PASV_OK);
+ }
+
+ /**
+ * @throws IOException
+ * @see org.mockftpserver.core.command.CommandHandler#handleCommand(org.mockftpserver.core.command.Command, org.mockftpserver.core.session.Session)
+ */
+ public void handleCommand(Command command, Session session, InvocationRecord invocationRecord)
+ throws IOException {
+
+ int port = session.switchToPassiveMode();
+ InetAddress server = session.getServerHost();
+
+ Assert.isTrue(port > -1, "The server-side port is invalid: " + port);
+ LOG.debug("server=" + server + " port=" + port);
+ String hostAndPort = "(" + PortParser.convertHostAndPortToCommaDelimitedBytes(server, port) + ")";
+
+ sendReply(session, hostAndPort);
+ }
+
+}