(Java) Upload to Tumbleweed SecureTransport FTPS Server

Demonstrates how to connect, authenticate, and upload file to a Tumbleweed Secure Transport SSL FTP Server. Instead of providing a login name and password, you pass the string "site-auth" for the username, and an empty string for the password. You must also provide a client-side digital certificate -- as the certificate's credentials and validity are used to authenticate.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

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

    CkFtp2 ftp = new CkFtp2();

    // This code has been tested with the Tumbleweed server
    // at sft.wellsfargo.com
    ftp.put_Hostname("sft.wellsfargo.com");

    // Use these exact strings for the username and password:
    ftp.put_Username("site-auth");
    ftp.put_Password("");

    // Establish an AUTH SSL secure channel after connecting.
    // Your client-side certificate is used for authentication when
    // the SSL channel is established.
    ftp.put_AuthSsl(true);

    // The Ssl property is for establishing an implicit SSL connection
    // on port 990.  Do not set it.
    ftp.put_Ssl(false);

    // Load a certificate from a .pfx
    // A PFX may contain several certs, including the certificates
    // in a chain of authority.
    CkCertStore certStore = new CkCertStore();
    String password = "***";
    // Load the certs from a PFX into an in-memory certificate store:
    boolean success = certStore.LoadPfxFile("my.pfx",password);
    if (success != true) {
        System.out.println(certStore.lastErrorText());
        return;
        }

    // Find the exact cert we'll use:
    CkCert cert = certStore.FindCertBySubject("My Certificate 123 ABC");
    if (certStore.get_LastMethodSuccess() == false) {
        System.out.println("Certificate not found!");
        return;
        }

    // Tell the Chilkat FTP2 component to use the client-side
    // cert for the SSL connection:
    success = ftp.SetSslClientCert(cert);

    // Connect and authenticate with the FTP server.
    success = ftp.Connect();
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
        }
    else {
        // LastErrorText contains information even when
        // successful. This allows you to visually verify
        // that the secure connection actually occurred.
        System.out.println(ftp.lastErrorText());
        }

    System.out.println("Secure FTP Channel Established!");

    // Change to the remote directory where the file will be
    // uploaded.  If your file is to be uploaded to the FTP user 
    // account's home directory, this is not necessary.
    success = ftp.ChangeRemoteDir("someSubDir");
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    // You may include an absolute or relative path with the 
    // local filename.  If no path is included, the file should 
    // be present in the current working directory of the calling
    // process.
    String localFilename = "someFile.dat";
    String remoteFilename = "someFile.dat";

    // Upload the file.
    success = ftp.PutFile(localFilename,remoteFilename);
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    success = ftp.Disconnect();
  }
}