pics/models/Dispatcher.php

<?php
/*****************************************************************************
 * Dispatcher.php
 * Contains key class Dispatcher.
 *
 * Kabuki CMS (C) 2013-2015, Aaron van Geffen
 *****************************************************************************/

class Dispatcher
{
	public static function dispatch()
	{
		// Let's try to find our bearings!
		try
		{
			$page = Router::route();
			$page->showContent();
		}
		// Something wasn't found?
		catch (NotFoundException $e)
		{
			self::trigger404();
		}
		// Or are they just sneaking into areas they don't belong?
		catch (NotAllowedException $e)
		{
			if (Registry::get('user')->isGuest())
				self::kickGuest();
			else
				self::trigger403();
		}
		catch (UserFacingException $e)
		{
			$debug_info = ErrorHandler::getDebugInfo($e->getTrace());
			ErrorHandler::display($e->getMessage(), $debug_info, false);
		}
		catch (Exception $e)
		{
			ErrorHandler::handleError(E_USER_ERROR, 'Unspecified exception: ' . $e->getMessage(), $e->getFile(), $e->getLine());
		}
		catch (Error $e)
		{
			ErrorHandler::handleError(E_USER_ERROR, 'Fatal error: ' . $e->getMessage(), $e->getFile(), $e->getLine());
		}
	}

	/**
	 * Kicks a guest to a login form, redirecting them back to this page upon login.
	 */
	public static function kickGuest($title = null, $message = null)
	{
		$form = new LogInForm('Log in');
		$form->adopt(new Alert($title ?? '', $message ?? 'You need to be logged in to view this page.', 'danger'));
		$form->setRedirectUrl($_SERVER['REQUEST_URI']);

		$page = new MainTemplate('Login required');
		$page->appendStylesheet(BASEURL . '/css/admin.css');
		$page->adopt($form);
		$page->html_main();
		exit;
	}

	public static function trigger400()
	{
		header('HTTP/1.1 400 Bad Request');
		$page = new MainTemplate('Bad request');
		$page->adopt(new DummyBox('Bad request', '<p>The server does not understand your request.</p>'));
		$page->html_main();
		exit;
	}

	public static function trigger403()
	{
		header('HTTP/1.1 403 Forbidden');
		$page = new MainTemplate('Access denied');
		$page->adopt(new DummyBox('Forbidden', '<p>You do not have access to the page you requested.</p>'));
		$page->html_main();
		exit;
	}

	public static function trigger404()
	{
		header('HTTP/1.1 404 Not Found');
		$page = new MainTemplate('Page not found');

		if (Registry::has('user') && Registry::get('user')->isAdmin())
		{
			$page->appendStylesheet(BASEURL . '/css/admin.css');
			$page->adopt(new AdminBar());
		}

		$page->adopt(new DummyBox('Well, this is a bit embarrassing!', '<p>The page you requested could not be found. Don\'t worry, it\'s probably not your fault. You\'re welcome to browse the website, though!</p>', 'errormsg'));
		$page->addClass('errorpage');
		$page->html_main();
		exit;
	}
}