Quick cpanel login

gistfile1.aw

$this->library->load(array('form_validation','session', 'file', [url/uri]));
/*
You will need url helper for redirect.
check http://codeigniter.com/user_guide/helpers/url_helper.html

Here is a more complete contruct for this app, to continue forward.:

	function __construct()
	{
		parent::__construct();
		//$this->output->enable_profiler(TRUE);
		$this->load->library(
			array(
				'session',
				'form_validation',
				'email',
				'uri',
				
			)
		);
		$this->load->helper(
			array(
				'url',
				'file',
				'string'
			)
		);
		$this->form_validation->set_error_delimiters('<div class="error">', '</div>');
	}
*/
function login()
{
	$this->form_validation->set_rules('username','username','trim|required');
	$this->form_validation->set_rules('password','password','trim|required|callback__admin_read_storage_nox');
	if($this->form_validation->run() == TRUE)
	{
		
		# create a login session
		$this->session->set_userdata('username',$this->input->post('username'));
		redirect(site_url());
	}
	else
	{
		$this->load->view('login');
	}
}

function _admin_read_storage_nox()
{
	$this->form_validation->set_message('_admin_read_storage_nox', 'Invalid login, please try again.');
	if( get_filenames('./assets/data/') )
	{
		$s = get_filenames('./assets/data/', true);
		foreach( $s as $adm )
		{
			$ext = strtolower(substr(strrchr($adm, '.'), 1));
			if( $ext == 'nox')
			{
				$str = read_file($adm);	
				$creds = json_decode($str);	
				if( $creds->{'username'} == $this->input->post('username') && $creds->{'password'} == hash('sha256', strtolower($this->input->post('password'))) )
				{
					$this->session->set_userdata('user',json_encode(array('username'=>$creds->{'username'},'email'=>$creds->{'email'})));
					redirect('/welcome/panel');
				}
			}
		}
		return FALSE;
	}
}

Auth File
=========
assets/data/auth_file.nox (json) 
{"username":"admin","email":"admin@domain.com","password":"ac9689e2272427085e35b9d3e3e8bed88cb3434828b43b86fc0596cad4c6e270"} //sha256('admin1234')