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|
class Authentication extends CI_controller {
function __construct()
{
parent::__construct();
$this->load->library(['form_validation','session']);
$this->load->database();
$this->load->helper(['captcha']);
}
public function index()
{
redirect('authentication/login');
}
public function login()
{
$data = array();
if(isset($_POST['submit']))
{
$this->form_validation->set_rules('username','Username',
'required');
$this->form_validation->set_rules('password','Password',
'required|min_length[8]|max_length[16]');
$this->form_validation->set_rules('captcha','Access Code',
'required');
if($this->form_validation->run() == TRUE)
{
// success
//catcha checking
$captcha = $this->input->post('captcha');
$captcha_session = $this->session->userdata('captcha');
if ($captcha == $captcha_session )
{
// true - captcha matches
$username =
$_POST['username'];
$user_username = $this->db->
get_where('login',['login_username' => $username ])->row_array();
if(isset($user_username['login_id']) &&
$user_username['login_password'] != '')
{
//true, check password
$password =
$_POST['password'];
if(isset($password) && password_verify
($password,$user_username['login_password']))
{
//redirect to home
redirect('authentication/home');
}
else
{
$this->session->set_flashdata('login'
,'Invalid Username or Password');
}
}
else
{
//failed to login
$this->session->set_flashdata('login',
'Invalid Username or Password');
}
}
else
{
//captcha not matches
$this->session->set_flashdata('login',
'Incorrect Access Code');
}
}
}
/* CAPTCHA STARTS */
if(!is_dir('./assets/captch_img/'))
{
mkdir('./assets/captch_img/','0777',true);
}
$config = array(
'img_url' => base_url() . 'assets/
captch_img/',
'img_path' => 'assets/captch_img/',
'img_height' => 45,
'word_length' => 5,
'img_width' => '200',
'font_size' => 10
);
$captcha_new = create_captcha($config);
unset($_SESSION['captcha']);
$this->session->set_userdata('captcha', $captcha_new['word']);
$data['captchaImage'] = $captcha_new['image'];
/* CAPTCHA ENDS */
$this->load->view(login,$data);
}
public function captcha_refresh()
{
$config = array(
'img_url' => base_url() . 'assets/captch_img/',
'img_path' => 'assets/captch_img/',
'img_height' => 45,
'word_length' => 5,
'img_width' => '200',
'font_size' => 10
);
$captcha_new = create_captcha($config);
unset($_SESSION['captcha']);
$this->session->set_userdata('captcha', $captcha_new['word']);
echo $captcha_new['image'];
}
public function home()
{
$this->load->view('home');
}
public function signout()
{
session_destroy();
unset($_SESSION);
$data = array();
/* CAPTCHA STARTS */
$config = array(
'img_url' => base_url() . 'assets/captch_img/',
'img_path' => 'assets/captch_img/',
'img_height' => 45,
'word_length' => 5,
'img_width' => '200',
'font_size' => 10
);
$captcha_new = create_captcha($config);
unset($_SESSION['captcha']);
$this->session->set_userdata('captcha', $captcha_new['word']);
$data['captchaImg'] = $captcha_new['image'];
/* CAPTCHA ENDS */
$this->load->view(login,$data);
}
}
?>
|
