org.apache.ftpserver.command.RNTO.java Source code

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Here is the source code for org.apache.ftpserver.command.RNTO.java

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// $Id: RNTO.java 306757 2005-10-06 11:33:33 +0530 (Thu, 06 Oct 2005) rana_b $
/*
 * Copyright 2004 The Apache Software Foundation
 *
 * 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.apache.ftpserver.command;

import java.io.IOException;

import org.apache.commons.logging.Log;
import org.apache.ftpserver.Command;
import org.apache.ftpserver.FtpRequestImpl;
import org.apache.ftpserver.FtpWriter;
import org.apache.ftpserver.RequestHandler;
import org.apache.ftpserver.ftplet.FileObject;
import org.apache.ftpserver.ftplet.FtpException;
import org.apache.ftpserver.ftplet.Ftplet;
import org.apache.ftpserver.ftplet.FtpletEnum;
import org.apache.ftpserver.interfaces.IFtpConfig;

/**
 * <code>RNTO &lt;SP&gt; &lt;pathname&gt; &lt;CRLF&gt;</code><br>
 *
 * This command specifies the new pathname of the file
 * specified in the immediately preceding "rename from"
 * command.  Together the two commands cause a file to be
 * renamed.
 * 
 * @author <a href="mailto:rana_b@yahoo.com">Rana Bhattacharyya</a>
 */
public class RNTO implements Command {

    /**
     * Execute command.
     */
    public void execute(RequestHandler handler, FtpRequestImpl request, FtpWriter out)
            throws IOException, FtpException {
        try {

            // argument check
            String toFileStr = request.getArgument();
            if (toFileStr == null) {
                out.send(501, "RNTO", null);
                return;
            }

            // call Ftplet.onRenameStart() method
            IFtpConfig fconfig = handler.getConfig();
            Ftplet ftpletContainer = fconfig.getFtpletContainer();
            FtpletEnum ftpletRet = ftpletContainer.onRenameStart(request, out);
            if (ftpletRet == FtpletEnum.RET_SKIP) {
                return;
            } else if (ftpletRet == FtpletEnum.RET_DISCONNECT) {
                fconfig.getConnectionManager().closeConnection(handler);
                return;
            }

            // get the "rename from" file object
            FileObject frFile = request.getRenameFrom();
            if (frFile == null) {
                out.send(503, "RNTO", null);
                return;
            }

            // get target file
            FileObject toFile = null;
            try {
                toFile = request.getFileSystemView().getFileObject(toFileStr);
            } catch (Exception ex) {
            }
            if (toFile == null) {
                out.send(553, "RNTO.invalid", null);
                return;
            }
            toFileStr = toFile.getFullName();

            // check permission
            if (!toFile.hasWritePermission()) {
                out.send(553, "RNTO.permission", null);
                return;
            }

            // check file existance
            if (!frFile.doesExist()) {
                out.send(553, "RNTO.missing", null);
                return;
            }

            // now rename
            if (frFile.move(toFile)) {
                Log log = fconfig.getLogFactory().getInstance(getClass());
                log.info("File rename (" + request.getUser().getName() + ") " + frFile.getFullName() + " -> "
                        + toFile.getFullName());
                out.send(250, "RNTO", toFileStr);

                // call Ftplet.onRenameEnd() method
                ftpletRet = ftpletContainer.onRenameEnd(request, out);
                if (ftpletRet == FtpletEnum.RET_DISCONNECT) {
                    fconfig.getConnectionManager().closeConnection(handler);
                    return;
                }
            } else {
                out.send(553, "RNTO", toFileStr);
            }

        } finally {
            request.resetState();
        }
    }

}