org.spionen.james.FTPConnection.java Source code

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Here is the source code for org.spionen.james.FTPConnection.java

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/**
*   Copyright 2010-2015 Maxim Fris, Tobias Olausson
*
*   This file is part of James.
*
*   James 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 3 of the License, or
*   (at your option) any later version.
*
*   James 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 James. If not, see <http://www.gnu.org/licenses/>.
*/
package org.spionen.james;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.net.ftp.FTPClient;

/**
 * This class handles the FTP connection to TidningsBrarna
 * @author Tobias Olausson
 *
 */
public class FTPConnection {
    private String hostname = "ftp.tidningsbararna.se"; // Standard URL
    private String username;
    private String password;
    private FTPClient client;
    private String channel;

    public FTPConnection(String hostname, String username, String password, String channel) {
        this.hostname = hostname;
        this.username = username;
        this.password = password;
        this.channel = channel;
        client = new FTPClient();
    }

    public FTPConnection(String username, String password, String channel) {
        this.username = username;
        this.password = password;
        this.channel = channel;
    }

    public void connect() {
        try {
            client.connect(hostname);
            client.login(username, password);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * Sends a file to TB using the required FTP protocol defined as:
     * 
     * OPEN <UTB_URL>
     * USER <user> <pwd>
     * APPEND <utfil> FTPFIN01
     * QUOTE RCMD "call FTCLIN<kk>"
     * CLOSE
     * QUIT
     * 
     * Where utfil is the file to be sent, and kk is the channel
     * given to us by TB.
     * 
     * @param filename the file we want to send to TB
     */
    public void sendFile(String filename) {
        File f = new File(filename);
        if (client.isConnected() && f.exists() && f.canRead()) {
            try {
                InputStream is = new FileInputStream(filename);
                client.appendFile("FTPFIN01", is);
                client.sendCommand("QUOT", "RCMD \"call FTCLIN" + channel + "\"");
                client.sendCommand("CLOSE");
                client.logout();
            } catch (IOException e) {
                e.printStackTrace();
                // Do....eh, something?
            }
        }
    }

}