library

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Auth{
	var $CI = NULL;
	function __construct()
	{
		// get CI's object
		$this->CI =& get_instance();
	}
	// untuk validasi login
	function do_login($username,$password,$aktif)
	{
		// cek di database, ada ga?
		$this->CI->db->from('tbl_user');
		$this->CI->db->where('user_name',$username);
		$this->CI->db->where('pass_user=MD5("'.$password.'")','',false);
		$this->CI->db->where('aktif_user',$aktif);
		$result = $this->CI->db->get();
		if($result->num_rows() == 0)
		{
			// username dan password tsb tidak ada
			return false;
		}
		else
		{
			// ada, maka ambil informasi dari database
			$userdata = $result->row();
			$session_data = array(
								'user_id'	=> $userdata->id_user,
                                'nama_user'          => $userdata->nama_user,
                                'user_name'      => $userdata->user_name,
                                'email_user'      => $userdata->email_user,
                                'pass_user'      => $userdata->pass_user,
                                'foto_user'      => $userdata->foto_user,
                                'User_First_Name'      => $userdata->User_First_Name,
                                'User_Last_Name'      => $userdata->User_Last_Name,
                                'User_Address'      => $userdata->User_Address,
                                'User_Birthday'      => $userdata->User_Birthday,
                                'User_Phone'      => $userdata->User_Phone,
                                'User_Quote'      => $userdata->User_Quote,
			);
			// buat session
                        session_start();
                        $_SESSION['ses_kcfinder']=array();
                        $_SESSION['ses_kcfinder']['disabled'] = false;
                        $_SESSION['ses_kcfinder']['uploadURL'] = "../content_upload";
			$this->CI->session->set_userdata($session_data);
                        $id['id_user'] = $this->CI->session->userdata('user_id');
                        $insert['last_login'] = date("Y-m-d H:i:s");
                        $insert['ip_address'] = $_SERVER['REMOTE_ADDR'];
                        $this->CI->db->update("tbl_user",$insert,$id);
			return true;
		}
	}
	// untuk mengecek apakah user sudah login/belum
	function is_logged_in()
	{
		if($this->CI->session->userdata('id_user') == '' && $this->CI->session->userdata('user_name') == '' && $this->CI->session->userdata('pass_user') == '')
		{
			return false;
		}
		return true;
	}

        function is_logoff_in()
	{
		if($this->CI->session->userdata('pass_user') == '')
 		{
			return false;
		}
		return true;
	}
	// untuk validasi di setiap halaman yang mengharuskan authentikasi
	function restrict()
	{
		if($this->is_logged_in() == false)
		{
                        $this->CI->session->sess_destroy();
                        redirect('root');
		}
	}
	function status_aktif($aktif=0)
    {
        $user_id = $this->CI->session->userdata("user_id");
        $this->CI->db->from('tbl_user');
        $this->CI->db->where('aktif_user',$aktif);
        $this->CI->db->where('id_user',$user_id);
        $result = $this->CI->db->get();

        if($result->num_rows() !== 0)
        {
            //username dan password tidak ada
            $this->CI->session->sess_destroy();
            redirect('root');
        }
    }
    function count_user()
    {
    	$return = $this->ci->root_model->count_where2('tbl_user',  array('id_user' => 2));
    	if ($return == 0)
        {
    		return 0;
    	}
        else
        {
    		return $return;
    	}
    }

	// untuk logout
	function do_logout()
	{
		$this->CI->session->sess_destroy();
                session_start();
                session_unset('kcfinder');
	}

        function do_logoff()
	{
		$this->CI->session->unset_userdata('pass_user');
	}
}