Use an Existing Socket SSH Tunnel

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Demonstrates the Chilkat MailMan.UseSshTunnel method, which configures MailMan to use an existing SSH tunnel provided by a Socket object for its SMTP and POP3 connections. This example opens and authenticates a tunnel on a Socket, hands it to MailMan, and then verifies an SMTP login through it.

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    //  Demonstrates the MailMan.UseSshTunnel method, which configures MailMan to use an existing
    //  SSH tunnel provided by a Socket object for its SMTP and POP3 connections.

    //  Open and authenticate the SSH tunnel using a Socket object.
    CkSocket sshTunnel = new CkSocket();
    success = sshTunnel.SshOpenTunnel("ssh.example.com",22);
    if (success == false) {
        Log.i(TAG, sshTunnel.lastErrorText());
        return;
        }

    success = sshTunnel.SshAuthenticatePw("sshUser","sshPassword");
    if (success == false) {
        Log.i(TAG, sshTunnel.lastErrorText());
        return;
        }

    CkMailMan mailman = new CkMailMan();

    //  Configure the SMTP server connection.  These connections will travel through the tunnel.
    mailman.put_SmtpHost("smtp.example.com");
    mailman.put_SmtpPort(465);
    mailman.put_SmtpSsl(true);
    mailman.put_SmtpUsername("user@example.com");
    mailman.put_SmtpPassword("myPassword");

    //  Tell MailMan to route its connections through the existing tunnel.
    success = mailman.UseSshTunnel(sshTunnel);
    if (success == false) {
        Log.i(TAG, mailman.lastErrorText());
        return;
        }

    //  SMTP operations now travel through the shared SSH tunnel.
    success = mailman.VerifySmtpLogin();
    if (success == false) {
        Log.i(TAG, mailman.lastErrorText());
        return;
        }

    Log.i(TAG, "Authenticated with the SMTP server through the SSH tunnel.");

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}