net.sourceforge.dvb.projectx.xinput.ftp.FtpServer.java Source code

Java tutorial

Introduction

Here is the source code for net.sourceforge.dvb.projectx.xinput.ftp.FtpServer.java

Source

/*
 * @(#)FtpServer.java -  for ftp access
 *
 * Copyright (c) 2004-2006 by roehrist, All Rights Reserved. 
 * 
 * This file is part of ProjectX, a free Java based demux utility.
 * By the authors, ProjectX is intended for educational purposes only, 
 * as a non-commercial test project.
 * 
 *
 * This program is free software; you can redistribute it and/or modify 
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

/*
 * requires Jakarta Commons Net library, developed by the
 * Apache Software Foundation (http://www.apache.org/).
 */

package net.sourceforge.dvb.projectx.xinput.ftp;

import java.io.IOException;
import java.io.InputStream;

import java.util.ArrayList;

import net.sourceforge.dvb.projectx.common.Resource;
import net.sourceforge.dvb.projectx.xinput.XInputFile;
import net.sourceforge.dvb.projectx.xinput.XInputDirectory;
import net.sourceforge.dvb.projectx.xinput.ftp.FtpVO;

import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;

public class FtpServer {

    private FtpVO ftpVO;

    private StringCommandListener scl;

    private FTPClient ftpClient;

    private boolean isOpen;

    private String testMsg;

    private FtpServer() {
        throw new UnsupportedOperationException();
    }

    public FtpServer(FtpVO aFtpVO) {

        if (aFtpVO == null) {
            throw new IllegalArgumentException("aFtpVO mustn't be null!");
        }

        ftpVO = aFtpVO;
        scl = new StringCommandListener();
        ftpClient = new FTPClient();
        ftpClient.addProtocolCommandListener(scl);
        isOpen = false;
    }

    public boolean open() {
        boolean isSuccessful = false;

        if (isOpen) {
            throw new IllegalStateException("Is already open, must be closed before!");
        }

        try {
            int reply;
            ftpClient.connect(ftpVO.getServer(), ftpVO.getPortasInteger());

            reply = ftpClient.getReplyCode();

            if (!FTPReply.isPositiveCompletion(reply)) {
                ftpClient.disconnect();
                throw new IOException("Can't connect!");
            }

            if (!ftpClient.login(ftpVO.getUser(), ftpVO.getPassword())) {
                ftpClient.logout();
                throw new IOException("Can't login!");
            }

            if (!ftpClient.changeWorkingDirectory(ftpVO.getDirectory())) {
                ftpClient.logout();
                throw new IOException("Can't change directory!");
            }

            ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
            ftpClient.enterLocalPassiveMode();

            isSuccessful = true;

        } catch (Exception e) {
            if (ftpClient.isConnected()) {
                try {
                    ftpClient.disconnect();
                } catch (IOException f) {
                    // do nothing
                }
            }
            isSuccessful = false;
        }
        isOpen = isSuccessful;
        return isSuccessful;
    }

    /**
     *
     */
    public XInputFile[] listFiles() {
        ArrayList list = new ArrayList();
        FTPFile[] ftpFiles = null;

        try {
            ftpFiles = ftpClient.listFiles();

            for (int i = 0, j = ftpFiles.length; i < j; i++) {
                if (!ftpFiles[i].isFile())
                    continue;

                FtpVO tempFtpVO = (FtpVO) ftpVO.clone();

                tempFtpVO.setFtpFile(ftpFiles[i]);

                list.add(new XInputFile(tempFtpVO));
            }

        } catch (Exception e) {

            System.err.println("!> error create ftp filelist: " + e);
        }

        XInputFile[] ftpInputFiles = new XInputFile[list.size()];

        for (int i = 0, j = ftpInputFiles.length; i < j; i++)
            ftpInputFiles[i] = (XInputFile) list.get(i);

        return ftpInputFiles;
    }

    /**
     *
     */
    public FtpVO[] listDirectories() {
        ArrayList list = new ArrayList();
        FTPFile[] ftpFiles = null;

        try {
            ftpFiles = ftpClient.listFiles();

            for (int i = 0, j = ftpFiles.length; i < j; i++) {
                if (!ftpFiles[i].isDirectory())
                    continue;

                else if (ftpFiles[i].getName().startsWith("."))
                    continue;

                FtpVO tempFtpVO = (FtpVO) ftpVO.clone();

                tempFtpVO.setDirectory(tempFtpVO.getDirectory() + "/" + ftpFiles[i].getName());
                tempFtpVO.setFtpFile(ftpFiles[i]);

                list.add(tempFtpVO);
            }

        } catch (Exception e) {

            System.err.println("!> error create ftp directory list: " + e);
        }

        FtpVO[] ftpInputDirectories = new FtpVO[list.size()];

        for (int i = 0, j = ftpInputDirectories.length; i < j; i++)
            ftpInputDirectories[i] = (FtpVO) list.get(i);

        return ftpInputDirectories;
    }

    public InputStream retrieveFileStream(String aFileName) throws IOException {
        return ftpClient.retrieveFileStream(aFileName);
    }

    public void close() {
        if (!isOpen) {
            throw new IllegalStateException("Is already closed, must be opened before!");
        } else {
            try {
                ftpClient.logout();
                ftpClient.disconnect();
            } catch (Exception e) {
                // do nothing
            }
            isOpen = false;
        }
    }

    public boolean test() {

        int base = 0;
        boolean error = false;
        FTPFile[] ftpFiles;

        testMsg = null;

        try {
            int reply;
            ftpClient.connect(ftpVO.getServer(), ftpVO.getPortasInteger());

            // Check connection
            reply = ftpClient.getReplyCode();
            if (!FTPReply.isPositiveCompletion(reply)) {
                ftpClient.disconnect();
                testMsg = Resource.getString("ftpchooser.msg.noconnect");
                return false;
            }

            // Login
            if (!ftpClient.login(ftpVO.getUser(), ftpVO.getPassword())) {
                ftpClient.logout();
                testMsg = Resource.getString("ftpchooser.msg.nologin");
                return false;
            }

            ftpClient.syst();

            // Change directory
            if (!ftpClient.changeWorkingDirectory(ftpVO.getDirectory())) {
                testMsg = Resource.getString("ftpchooser.msg.nodirectory");
                return false;
            }

            testMsg = Resource.getString("ftpchooser.msg.success");
            ftpClient.logout();

        } catch (IOException ex) {
            testMsg = ex.getLocalizedMessage();
            error = true;
        } finally {
            if (ftpClient.isConnected()) {
                try {
                    ftpClient.disconnect();
                } catch (IOException f) {
                }
            }
        }
        return !error;
    }

    public String getTestMsg() {
        return testMsg;
    }

    public String getLog() {
        return scl.getMessages();
    }
}
/*
 * int base = 0; boolean storeFile = false, binaryTransfer = false, error =
 * false; String server, username, password, remote, local, remoteDir; FTPClient
 * ftp; FTPFile[] ftpFiles;
 * 
 * server = "192.168.0.5"; username = "root"; password = "dreambox"; remote =
 * ""; local = ""; remoteDir = "/hdd/movie";
 * 
 * ftp = new FTPClient(); ftp.addProtocolCommandListener( new
 * PrintCommandListener(new PrintWriter(System.out)));
 * 
 * 
 * try { if (!ftp.login(username, password)) { ftp.logout(); error = true; }
 * else { System.out.println("Remote system is " + ftp.getSystemName());
 * 
 * ftp.setFileType(FTP.BINARY_FILE_TYPE); ftp.enterLocalPassiveMode();
 * 
 * ftp.changeWorkingDirectory(remoteDir); ftpFiles = ftp.listFiles(); for (int i =
 * 0; i < ftpFiles.length; i++) { FTPFile file = ftpFiles[i];
 * System.out.println("Listing of " + remoteDir + ": " + file.getName()); }
 * 
 * 
 * if (storeFile) { InputStream input;
 * 
 * input = new FileInputStream(local); ftp.storeFile(remote, input); } else {
 * OutputStream output;
 * 
 * output = new FileOutputStream(local); ftp.retrieveFile(remote, output); }
 * 
 * 
 * ftp.logout(); } } catch (FTPConnectionClosedException e) { error = true;
 * System.err.println("Server closed connection."); e.printStackTrace(); } catch
 * (IOException e) { error = true; e.printStackTrace(); } finally { if
 * (ftp.isConnected()) { try { ftp.disconnect(); } catch (IOException f) { // do
 * nothing } } }
 */