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Java

SOCKS4 and SOCKS5 Proxy for FTP

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Demonstrates how to connect to an FTP server through a SOCKS4 or SOCKS5 proxy. Both SSL/TLS and non-secure FTP communications may use SOCKS4 and SOCKS5 proxies.

Chilkat Java Downloads

Chilkat2 Java
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Ftp2;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Ftp2 ftp = new Ftp2();

        ftp.setHostname("ftp.example.com");
        ftp.setUsername("login");
        ftp.setPassword("password");

        // To use a SOCKS4 or SOCKS5 proxy, simply set the following
        // properties prior to connecting:
        // The SOCKS hostname may be a domain name or
        // IP address:
        ftp.setSocksHostname("www.mysocksproxyserver.com");
        ftp.setSocksPort(1080);
        ftp.setSocksUsername("myProxyLogin");
        ftp.setSocksPassword("myProxyPassword");
        // Set the SOCKS version to 4 or 5 based on the version
        // of the SOCKS proxy server:
        ftp.setSocksVersion(5);
        // Note: SOCKS4 servers only support usernames without passwords.
        // SOCKS5 servers support full login/password authentication.

        // Connect and login to the FTP server.
        try {
            ftp.connect();

            // Change to the remote directory where the file is located.
            // This step is only necessary if the file is not in the root directory
            // for the FTP account.
            ftp.changeRemoteDir("junk");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Download a file.
        String localFilename = "c:/temp/hamlet.xml";
        String remoteFilename = "hamlet.xml";

        try {
            ftp.getFile(remoteFilename, localFilename);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        ftp.disconnect();

        System.out.println("File Downloaded!");
    }
}