Android™
Android™
Get the SSH Server's Authentication Methods
See more SSH Examples
Demonstrates the Chilkat Ssh.GetAuthMethods method, which queries a connected but unauthenticated SSH server for the authentication methods it advertises. It takes no arguments and returns a lowercase, comma-separated list such as publickey,password,keyboard-interactive. Call it after Connect and before authenticating.
Background: Knowing what the server accepts lets a client choose the right authentication path — for example, falling back to keyboard-interactive when password auth is not offered. Note the documented connection side effect: querying methods advances the SSH authentication state, so call it at the correct point in the sequence.
Chilkat Android™ Downloads
// 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 Ssh.GetAuthMethods method, which queries a connected but unauthenticated SSH
// server for the authentication methods it advertises. It takes no arguments and returns a
// lowercase, comma-separated list such as "publickey,password,keyboard-interactive".
CkSsh ssh = new CkSsh();
// Connect to the SSH server. Port 22 is the usual SSH port.
int sshPort = 22;
success = ssh.Connect("ssh.example.com",sshPort);
if (success == false) {
Log.i(TAG, ssh.lastErrorText());
return;
}
// Query the advertised authentication methods. Call after Connect, before authenticating.
String methods = ssh.getAuthMethods();
if (ssh.get_LastMethodSuccess() == false) {
Log.i(TAG, ssh.lastErrorText());
return;
}
Log.i(TAG, "Server auth methods: " + methods);
ssh.Disconnect();
}
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."
}
}