public function index(){
  	$username = $this->input->get('username');
  	$password = $this->input->get('password');

  	$uname = $username;
  	$pass = MD5($password);

  	$where = array('username' => $uname, 'password' => $pass);
  	$cek = $this->m_login->login($where)->num_rows();

  	$masterx = $this->m_login->getmitra($uname,$pass);

  	foreach($masterx as $row){
  		$master = $row->salt;
  	}

  	print_r($master);

  	$jk = strlen($master);

  	if($cek <= 0) {
  		$res['status'] = 'failed';
  	} else {
  		if($jk <= 80){
  			if ((!isset($_SERVER['PHP_AUTH_USER'])) || (!isset($_SERVER['PHP_AUTH_PW']))) {
    				header('WWW-Authenticate: Basic realm="Secured Area"');
    				header('HTTP/1.0 401 Unauthorized');
    				$res['status'] = 'Token failed';

    			} else if ((isset($_SERVER['PHP_AUTH_USER'])) && (isset($_SERVER['PHP_AUTH_PW']))){
    				if (($_SERVER['PHP_AUTH_USER'] != $uname) || ($_SERVER['PHP_AUTH_PW'] != $pass)) {
       					header('WWW-Authenticate: Basic realm="Secured Area"');
       					header('HTTP/1.0 401 Unauthorized');
       					$res['status'] = 'Token failed';

   				 } else if (($_SERVER['PHP_AUTH_USER'] == $uname) || ($_SERVER['PHP_AUTH_PW'] == $pass)) {

	  				$api_keys = md5($username.$password.date('y-m-d H:i:s')).random_string('alnum', 100);
	  				$this->db->where($where);
	  				$update = array('salt' => $api_keys);
	  				$this->db->update('mitra', $update);
	  				$res['status'] = 'true';
	  				$res['api_keys'] = $api_keys;
	  			}
	  		}
	  	} else {
	  		$res['status'] = 'false';
	  		$res['mesaage'] = 'akun ini sudah login';
	  	}
  	}

  	echo json_encode($res);
  }