Android authenticating with Kerberos

Question

I am trying to create a Android application that uses an existing web service. However, the existing web service uses Kerberos for authentication and I am having trouble getting Android using the android-xmlrpc library to authenticate with the service. If anyone has any experience with this, please respond.

I am completely new to this kind of stuff, so any advice would be greatly appreciated!

Thanks, Dave

Answer 1

The information here helped me to get my android app working with kerberos. Here's a link to a project I'm working on. It does kerberos authentication. Here's the pertinent code:

UsernamePasswordCredentials creds =
  new UsernamePasswordCredentials(username, password);
DefaultHttpClient client = getHttpClient();
client.getCredentialsProvider().setCredentials(SERVER_AUTH_SCOPE, creds);

boolean authWorked = false;
try{
  HttpGet get = new HttpGet(AUTH_URI);
  HttpResponse resp = client.execute(get);
  authWorked = hasValidCookie();
}
/*catch(AuthenticationException e){
Log.e("TAG", "Auth exceptions");
//TODO maybe do something?
}*/
catch(IOException e){
  Log.e("TAG", "IOException exceptions");
  //TODO maybe do something?
}

Here's the getHttpClient() method:

  public static DefaultHttpClient getHttpClient(){
    if(httpClient == null){
      httpClient = new DefaultHttpClient();
      final HttpParams params = httpClient.getParams();
      HttpConnectionParams.setConnectionTimeout(params, REGISTRATION_TIMEOUT);
      HttpConnectionParams.setSoTimeout(params, REGISTRATION_TIMEOUT);
      ConnManagerParams.setTimeout(params, REGISTRATION_TIMEOUT);
    }
    return httpClient;
  }

Here's hasValidCookie()

private static final String LOGIN_COOKIE_NAME = "CGISESSID";
private static boolean hasValidCookie(){
  for(Cookie cookie: getHttpClient().getCookieStore().getCookies()){
    if(cookie.getName().equals(LOGIN_COOKIE_NAME))
    {
      return true;
    }
  }
  return false;
}