Authenticate an SSH Tunnel with a Private Key

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Demonstrates the Chilkat MailMan.SshAuthenticatePk method, which authenticates with the SSH server using public-key authentication after an SSH tunnel has been opened. The first argument is the SSH account name and the second is the SSH private key (an SshKey object). This example opens a tunnel, loads an OpenSSH private key, authenticates with it, and runs a POP3 operation through the tunnel.

// 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.SshAuthenticatePk method, which authenticates with the SSH server
    //  using public-key authentication after an SSH tunnel has been opened.  The 1st argument is
    //  the SSH account name and the 2nd is the SSH private key.

    CkMailMan mailman = new CkMailMan();

    //  Configure the POP3 server connection.  These connections will travel through the tunnel.
    mailman.put_MailHost("pop.example.com");
    mailman.put_MailPort(995);
    mailman.put_PopSsl(true);
    mailman.put_PopUsername("user@example.com");
    mailman.put_PopPassword("myPassword");

    //  Open the SSH tunnel first.
    success = mailman.SshOpenTunnel("ssh.example.com",22);
    if (success == false) {
        Log.i(TAG, mailman.lastErrorText());
        return;
        }

    //  Load the SSH private key from an OpenSSH-format key file.
    CkSshKey sshKey = new CkSshKey();
    String keyText = sshKey.loadText("qa_data/ssh/id_rsa");
    if (sshKey.get_LastMethodSuccess() == false) {
        Log.i(TAG, sshKey.lastErrorText());
        return;
        }

    success = sshKey.FromOpenSshPrivateKey(keyText);
    if (success == false) {
        Log.i(TAG, sshKey.lastErrorText());
        return;
        }

    //  Authenticate with the SSH server using the private key.
    success = mailman.SshAuthenticatePk("sshUser",sshKey);
    if (success == false) {
        Log.i(TAG, mailman.lastErrorText());
        return;
        }

    //  POP3 operations now travel through the SSH tunnel.
    int count = mailman.GetMailboxCount();
    if (count < 0) {
        Log.i(TAG, "Failed to get the mailbox count.");
        }
    else {
        Log.i(TAG, "Mailbox count: " + String.valueOf(count));
        }

    success = mailman.SshCloseTunnel();
    if (success == false) {
        Log.i(TAG, mailman.lastErrorText());
        return;
        }

    //  Note: The path "qa_data/ssh/id_rsa" is a relative local filesystem path,
    //  relative to the current working directory of the running application.

  }

  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."
  }
}