Kohana 3 AUTH

create controller/register.php

    <?php defined('SYSPATH') or die('No direct script access.');

    class Controller_Register extends Controller_Template
    {
        public $template = 'register';

        function action_index()
        {
            $this->template->form = array
            (
                'username' => '',
                'password' => '',
                'email' => ''
            );
            $this->template->errors = $this->template->form;

            if (Auth::instance()->logged_in() != 0)
            {
                Request::instance()->redirect('/');
            }

            if ($_POST)
            {
                $user = ORM::factory('user');
                $post = $user->validate_create($_POST);
                if ($post->check())
                {
                    $user->username = $_POST['username'];
                    $user->email = $_POST['email'];
                    $user->password = $_POST['password'];
                    $user->save();
                    $user->add('roles',ORM::factory('role', array('name' => 'login')));
                    echo 'SAVED';
                }
                else
                {
                    $this->template->form = arr::overwrite($this->template->form, $post->as_array());
                    $this->template->errors = arr::overwrite($this->template->errors, $post->errors('register'));
                }
            }
        }
    }

    ?>

create model/user.php (for validate of $_POST)

    <?php defined('SYSPATH') or die('No direct script access.');

    class Model_User extends Model_Auth_User
    {
        protected $_rules = array
        (
            'username' => array
            (
                'not_empty' => NULL,
                'min_length' => array(4),
                'max_length' => array(32),
                'regex' => array('/^[-\pL\pN_.]++$/uD')
            ),
            'password' => array
            (
                'not_empty' => NULL,
                'min_length' => array(5),
                'max_length' => array(42)
            ),
            'email' => array
            (
                'not_empty' => NULL,
                'min_length' => array(5),
                'max_length' => array(127),
                'validate::email' => NULL
            )
        );

        protected $_callbacks = array
        (
            'username' => array('username_available'),
            'email' => array('email_available')
        );

        public function validate_create(&$array)
        {
            $array = Validate::factory($array)
                ->filter(TRUE, 'trim')
                ->rules('password', $this->_rules['password'])
                ->rules('username', $this->_rules['username'])
                ->rules('email', $this->_rules['email']);

            foreach ($this->_callbacks as $field => $callbacks)
            {
                foreach ($callbacks as $callback)
                {
                    $array->callback($field, array($this, $callback));
                }
            }
            return $array;
        }
    }

    ?>


create views/register.php

    <?php defined('SYSPATH') or die('No direct access allowed.');

    echo form::open(null);
    echo form::label('username', 'Name: ');
    echo form::input('username', $form['username'], array('id' => 'username'));
    echo (empty($errors['username'])) ? '' : $errors['username'];
    echo '<br />';

    echo form::label('password', 'Key: ') ;
    echo form::password('password', $form['password'], array('id' => 'password'));
    echo ( empty ($errors['password'])) ? '' : $errors['password'];
    echo '<br />';
    echo form::label('email', 'E-Mail: ');
    echo form::input('email', $form['email'], array('id' => 'email'));
    echo (empty($errors['email'])) ? '' : $errors['email'];
    echo '<br />';

    echo '<br />';
    echo form::submit('Register', 'Register');
    echo form::close();

    ?>

create controller/login.php

    <?php defined('SYSPATH') or die('No direct access allowed.');

    class Controller_Login extends Controller_Template
    {
        public $template = 'login';

        public function action_index()
        {
            if (Auth::instance()->logged_in())
            {
                Request::instance()->redirect(Session::instance()->get('requested_url', '/'));
            }
            else
            {
                if ($_POST)
                {
                    $remember = isset($_POST['remember']) ? TRUE : FALSE;

                    $auth = Auth::instance();
                    if ($auth->login($_POST['username'], $_POST['password'], $remember))
                    {
                        Request::instance()->redirect(Session::instance()->get('requested_url', '/'));
                    }
                    else
                    {
                        echo 'ERROR';
                    }
                }
            }
        }
    }

    ?>

create views/login.php

    <?php defined('SYSPATH') or die('No direct access allowed.');

    echo form::open(null);
    echo form::label('username', 'Name: ');
    echo form::input('username','',array('id' => 'username'));
    echo '<br />';
    echo form::label('password', 'Key: ');
    echo form::password('password','',array('id' => 'password'));
    echo '<br />';
    echo form::label('remember', 'Remember me: ');
    echo form::checkbox('remember', '1', FALSE, array('id' => 'remember'));

    echo '<br />';

    echo form::submit('login', 'Login');
    echo form::close();

    ?>

In each Controller you use before() for create session and logged in

    class Controller_Portal extends Controller_Template
    {
        public function before()
        {
            parent::before();
            $this->session = Session::instance();
            $auth = Auth::instance();
            $auth->auto_login();
            if ($auth->logged_in())
            {
                $this->user = Auth::instance()->get_user();
            }
        }

        public function action_index()
        {
            if (Auth::instance()->logged_in())
            {
                echo $this->user->username;
            }
        }
    }