<?php

/**

* INDEX BOOTSTRAP

*

* This is the starting point (index) for the system. Here we check cached files

* and then precede to load the system and finally run the controller.

*

* @package MicroMVC

* @author David Pennington

* @copyright Copyright (c) 2009 MicroMVC

* @license http://www.gnu.org/licenses/gpl-3.0.html

* @link http://micromvc.com

* @version 1.1.0 <7/7/2009>

********************************** 80 Columns *********************************

*/

//Log current time so we can tell how long it takes to run this script

define('START_TIME', microtime(true));

//Log starting memory useage

define('START_MEMORY_USAGE', memory_get_usage());

//Set the unique name of the current page (for the cache)

$var = preg_replace("/([^a-z0-9_\-\.]+)/i", '_', $_SERVER["REQUEST_URI"]);

define('PAGE_NAME', ($var ? $var : 'index'));

//Define the OS file path separator

define('DS', DIRECTORY_SEPARATOR);

//Define the base file system path to MicroMVC

define('SYSTEM_PATH', realpath(dirname(__FILE__)). DS);

//Define the base file system path to libraries

define('LIBRARY_PATH', SYSTEM_PATH. 'libraries'. DS);

//Define the base file system path to functions

define('FUNCTION_PATH', SYSTEM_PATH. 'functions'. DS);

//Define the base file system path to modules

define('MODULE_PATH', SYSTEM_PATH. 'modules'. DS);

//Define the base file system path to logs

define('LOG_PATH', SYSTEM_PATH. 'logs'. DS);

//Include the common file to continue loading

require_once(FUNCTION_PATH. 'common.php');

//Discover whether this is an AJAX request or not

define('AJAX_REQUEST', is_ajax_request());

//Discover the current domain for the whole script

define('DOMAIN', current_domain());

//Define the file system path to the current site

define('SITE_PATH', SYSTEM_PATH. DOMAIN. DS);

//The file system path of the site's cache folder

define('CACHE_PATH', SITE_PATH. 'cache'. DS);

//The file system path of the site's config folder

define('CONFIG_PATH', SITE_PATH. 'config'. DS);

//The file system path of the site's models folder

define('MODEL_PATH', SITE_PATH. 'models'. DS);

//The file system path of the site's uploads folder

define('UPLOAD_PATH', SITE_PATH. 'uploads'. DS);

//The file system path of the site's views folder

define('VIEW_PATH', SITE_PATH. 'views'. DS);

//Override the PHP error handler

set_error_handler('_error_handler');

//Require the config file for this site name

require(SITE_PATH. 'config/config.php');

//Require the config file for the hooks

require(SITE_PATH. 'config/hooks.php');

//Load the caching class

$cache = load_class('cache', LIBRARY_PATH);

//Load the hooks class

$hooks = load_class('hooks', LIBRARY_PATH, $hooks);

//Call first hook

$hooks->call('system_startup');

/**

* Check for cached version -die if found

*/

if($output = $cache->fetch(md5(PAGE_NAME. AJAX_REQUEST), null, null)) {

print $output;

//If debuging is enabled

if(DEBUG_MODE) {

$time = round((microtime(true) - START_TIME), 5);

$memory = round((memory_get_usage() - START_MEMORY_USAGE) / 1024);

die('<!-- Rendered in '. $time. ' seconds using '. $memory. ' kb of memory -->');

}

}

/**

* strip the slashes that have been added to our POST/GET data!

*/

if (ini_get('magic_quotes_gpc')) {

function array_clean(&$value) {

$value = stripslashes($value);

}

//php 5+ only

array_walk_recursive($_GET, 'array_clean');

array_walk_recursive($_POST, 'array_clean');

array_walk_recursive($_COOKIE, 'array_clean');

}

//Include the controller class file

load_class('controller', LIBRARY_PATH, NULL, FALSE);

//Include the base class file

load_class('base', LIBRARY_PATH, NULL, FALSE);

/**

* Get the controller from the URI

*/

$routes = load_class('routes', LIBRARY_PATH);

//Set default controller/method if none is set in URL

$routes->set_defaults(

$config['default_controller'],

$config['default_method'],

$config['permitted_uri_chars']

);

//Parse the URI

$routes->parse();

//Fetch the controller/method

$controller = $routes->fetch(0);

$method = $routes->fetch(1);

/**

* START-UP THE SYSTEM!

*/

//Try to load the controller from the site directory first

if(file_exists(SITE_PATH. 'controllers'. DS. $controller. '.php')) {

$path = SITE_PATH. 'controllers'. DS;

//Then try to see if there is a module

} elseif(file_exists(MODULE_PATH. $controller. DS. 'controllers'. DS. $controller. '.php')) {

$path = MODULE_PATH. $controller. DS. 'controllers'. DS;

} else {

//Show a 404 error and exit the script

request_error();

}

//Load the controller and pass the $config

$controller = load_class($controller, $path, $config);

//Make sure someone isn't trying to access core or private functions

if($method != 'request_error' && $controller != 'core') {

//Make sure this method exists (and is public)

if(method_exists('core', $method) OR ! in_array($method, get_class_methods($controller))) {

//Show a 404 error and exit the script

request_error();

}

}

//Call the startup hook

$controller->hooks->call('post_constructor');

// Call the requested method.

// Any URI segments present (besides the class/function)

// will be passed to the method for convenience

call_user_func_array(array(&$controller, $method), array_slice($routes->fetch(true), 2));

//Call the post-controller hook

$controller->hooks->call('post_method');

// And we're done!

$controller->render();

//Call the finish hook

$controller->hooks->call('system_shutdown');