<?php

class Auth extends CI_Controller

{

	// Used for registering and changing password form validation

	var $min_username = 4;

	var $max_username = 20;

	var $min_password = 4;

	var $max_password = 20;



	function __construct()

	{

		parent::__construct();

		

		$this->load->library('Form_validation');

		$this->load->library('DX_Auth');			

		

		$this->load->helper('url');

		$this->load->helper('form');

	}

	

	function index()

	{

		$this->login();

	}

	

	/* Callback function */

	

	function username_check($username)

	{

		$result = $this->dx_auth->is_username_available($username);

		if ( ! $result)

		{

			$this->form_validation->set_message('username_check', 'Username already exist. Please choose another username.');

		}

				

		return $result;

	}



	function email_check($email)

	{

		$result = $this->dx_auth->is_email_available($email);

		if ( ! $result)

		{

			$this->form_validation->set_message('email_check', 'Email is already used by another user. Please choose another email address.');

		}

				

		return $result;

	}



	

	function recaptcha_check()

	{

		$result = $this->dx_auth->is_recaptcha_match();		

		if ( ! $result)

		{

			$this->form_validation->set_message('recaptcha_check', 'Your confirmation code does not match the one in the image. Try again.');

		}

		

		return $result;

	}

	

	/* End of Callback function */

	

	

	function login()

	{

		if ( ! $this->dx_auth->is_logged_in())

		{

			$val = $this->form_validation;

			

			// Set form validation rules

			$val->set_rules('username', 'Username', 'trim|required|xss_clean');

			$val->set_rules('password', 'Password', 'trim|required|xss_clean');

			$val->set_rules('remember', 'Remember me', 'integer');



			// Set captcha rules if login attempts exceed max attempts in config

			if ($this->dx_auth->is_max_login_attempts_exceeded())

			{

				$val->set_rules('captcha', 'Confirmation Code', 'trim|required|xss_clean|callback_captcha_check');

			}

				

			if ($val->run() AND $this->dx_auth->login($val->set_value('username'), $val->set_value('password'), $val->set_value('remember')))

			{

				// Redirect to homepage

				redirect('', 'location');

			}

			else

			{

				// Check if the user is failed logged in because user is banned user or not

				if ($this->dx_auth->is_banned())

				{

					// Redirect to banned uri

					$this->dx_auth->deny_access('banned');

				}

				else

				{						

					// Default is we don't show captcha until max login attempts eceeded

					$data['show_captcha'] = FALSE;

				

					// Show captcha if login attempts exceed max attempts in config

					if ($this->dx_auth->is_max_login_attempts_exceeded())

					{

						// Create catpcha						

						$this->dx_auth->captcha();

						

						// Set view data to show captcha on view file

						$data['show_captcha'] = TRUE;

					}

					

					// Load login page view

					$this->load->view($this->dx_auth->login_view, $data);

				}

			}

		}

		else

		{

			$data['auth_message'] = 'You are already logged in.';

			$this->load->view($this->dx_auth->logged_in_view, $data);

		}

	}

	

	function logout()

	{

		$this->dx_auth->logout();

		

		$data['auth_message'] = 'You have been logged out.';		

		$this->load->view($this->dx_auth->logout_view, $data);

	}

	

	

	function register()

	{

		if ( ! $this->dx_auth->is_logged_in() AND $this->dx_auth->allow_registration)

		{	

			$val = $this->form_validation;

			

			// Set form validation rules

			$val->set_rules('username', 'Username', 'trim|required|xss_clean|min_length['.$this->min_username.']|max_length['.$this->max_username.']|callback_username_check|alpha_dash');

			$val->set_rules('password', 'Password', 'trim|required|xss_clean|min_length['.$this->min_password.']|max_length['.$this->max_password.']|matches[confirm_password]');

			$val->set_rules('confirm_password', 'Confirm Password', 'trim|required|xss_clean');

			$val->set_rules('email', 'Email', 'trim|required|xss_clean|valid_email|callback_email_check');

			

			// Is registration using captcha

			if ($this->dx_auth->captcha_registration)

			{

				// Set recaptcha rules.

				// IMPORTANT: Do not change 'recaptcha_response_field' because it's used by reCAPTCHA API,

				// This is because the limitation of reCAPTCHA, not DX Auth library

				$val->set_rules('recaptcha_response_field', 'Confirmation Code', 'trim|xss_clean|required|callback_recaptcha_check');

			}



			// Run form validation and register user if it's pass the validation

			if ($val->run() AND $this->dx_auth->register($val->set_value('username'), $val->set_value('password'), $val->set_value('email')))

			{	

				// Set success message accordingly

				if ($this->dx_auth->email_activation)

				{

					$data['auth_message'] = 'You have successfully registered. Check your email address to activate your account.';

				}

				else

				{					

					$data['auth_message'] = 'You have successfully registered. '.anchor(site_url($this->dx_auth->login_uri), 'Login');

				}

				

				// Load registration success page

				$this->load->view($this->dx_auth->register_success_view, $data);

			}

			else

			{

				// Load registration page

				$this->load->view('auth/register_form');

			}

		}

		elseif ( ! $this->dx_auth->allow_registration)

		{

			$data['auth_message'] = 'Registration has been disabled.';

			$this->load->view($this->dx_auth->register_disabled_view, $data);

		}

		else

		{

			$data['auth_message'] = 'You have to logout first, before registering.';

			$this->load->view($this->dx_auth->logged_in_view, $data);

		}

	}

	

	function activate()

	{

		// Get username and key

		$username = $this->uri->segment(3);

		$key = $this->uri->segment(4);



		// Activate user

		if ($this->dx_auth->activate($username, $key)) 

		{

			$data['auth_message'] = 'Your account have been successfully activated. '.anchor(site_url($this->dx_auth->login_uri), 'Login');

			$this->load->view($this->dx_auth->activate_success_view, $data);

		}

		else

		{

			$data['auth_message'] = 'The activation code you entered was incorrect. Please check your email again.';

			$this->load->view($this->dx_auth->activate_failed_view, $data);

		}

	}

	

	function forgot_password()

	{

		$val = $this->form_validation;

		

		// Set form validation rules

		$val->set_rules('login', 'Username or Email address', 'trim|required|xss_clean');



		// Validate rules and call forgot password function

		if ($val->run() AND $this->dx_auth->forgot_password($val->set_value('login')))

		{

			$data['auth_message'] = 'An email has been sent to your email with instructions with how to activate your new password.';

			$this->load->view($this->dx_auth->forgot_password_success_view, $data);

		}

		else

		{

			$this->load->view($this->dx_auth->forgot_password_view);

		}

	}

	

	function reset_password()

	{

		// Get username and key

		$username = $this->uri->segment(3);

		$key = $this->uri->segment(4);



		// Reset password

		if ($this->dx_auth->reset_password($username, $key))

		{

			$data['auth_message'] = 'You have successfully reset you password, '.anchor(site_url($this->dx_auth->login_uri), 'Login');

			$this->load->view($this->dx_auth->reset_password_success_view, $data);

		}

		else

		{

			$data['auth_message'] = 'Reset failed. Your username and key are incorrect. Please check your email again and follow the instructions.';

			$this->load->view($this->dx_auth->reset_password_failed_view, $data);

		}

	}

	

	function change_password()

	{

		// Check if user logged in or not

		if ($this->dx_auth->is_logged_in())

		{			

			$val = $this->form_validation;

			

			// Set form validation

			$val->set_rules('old_password', 'Old Password', 'trim|required|xss_clean|min_length['.$this->min_password.']|max_length['.$this->max_password.']');

			$val->set_rules('new_password', 'New Password', 'trim|required|xss_clean|min_length['.$this->min_password.']|max_length['.$this->max_password.']|matches[confirm_new_password]');

			$val->set_rules('confirm_new_password', 'Confirm new Password', 'trim|required|xss_clean');

			

			// Validate rules and change password

			if ($val->run() AND $this->dx_auth->change_password($val->set_value('old_password'), $val->set_value('new_password')))

			{

				$data['auth_message'] = 'Your password has successfully been changed.';

				$this->load->view($this->dx_auth->change_password_success_view, $data);

			}

			else

			{

				$this->load->view($this->dx_auth->change_password_view);

			}

		}

		else

		{

			// Redirect to login page

			$this->dx_auth->deny_access('login');

		}

	}	

	

	function cancel_account()

	{

		// Check if user logged in or not

		if ($this->dx_auth->is_logged_in())

		{			

			$val = $this->form_validation;

			

			// Set form validation rules

			$val->set_rules('password', 'Password', "trim|required|xss_clean");

			

			// Validate rules and change password

			if ($val->run() AND $this->dx_auth->cancel_account($val->set_value('password')))

			{

				// Redirect to homepage

				redirect('', 'location');

			}

			else

			{

				$this->load->view($this->dx_auth->cancel_account_view);

			}

		}

		else

		{

			// Redirect to login page

			$this->dx_auth->deny_access('login');

		}

	}



	// Example how to get permissions you set permission in /backend/custom_permissions/

	function custom_permissions()

	{

		if ($this->dx_auth->is_logged_in())

		{

			echo 'My role: '.$this->dx_auth->get_role_name().'<br/>';

			echo 'My permission: <br/>';

			

			if ($this->dx_auth->get_permission_value('edit') != NULL AND $this->dx_auth->get_permission_value('edit'))

			{

				echo 'Edit is allowed';

			}

			else

			{

				echo 'Edit is not allowed';

			}

			

			echo '<br/>';

			

			if ($this->dx_auth->get_permission_value('delete') != NULL AND $this->dx_auth->get_permission_value('delete'))

			{

				echo 'Delete is allowed';

			}

			else

			{

				echo 'Delete is not allowed';

			}

		}

	}





}

?>