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Konstantin
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<?php
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/**
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* @package OpenCart
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* @author Daniel Kerr
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* @copyright Copyright (c) 2005 - 2017, OpenCart, Ltd. (https://www.opencart.com/)
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* @license https://opensource.org/licenses/GPL-3.0
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* @link https://www.opencart.com
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*/
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/**
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* Loader class
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*/
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final class Loader {
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protected $registry;
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/**
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* Constructor
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*
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* @param object $registry
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*/
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public function __construct($registry) {
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$this->registry = $registry;
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}
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/**
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*
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*
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* @param string $route
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* @param array $data
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*
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* @return mixed
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*/
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public function controller($route, $data = array()) {
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// Sanitize the call
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$route = preg_replace('/[^a-zA-Z0-9_\/]/', '', (string)$route);
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// Keep the original trigger
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$trigger = $route;
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// Trigger the pre events
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$result = $this->registry->get('event')->trigger('controller/' . $trigger . '/before', array(&$route, &$data));
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// Make sure its only the last event that returns an output if required.
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if ($result != null && !$result instanceof Exception) {
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$output = $result;
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} else {
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$action = new Action($route);
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$output = $action->execute($this->registry, array(&$data));
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}
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// Trigger the post events
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$result = $this->registry->get('event')->trigger('controller/' . $trigger . '/after', array(&$route, &$data, &$output));
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if ($result && !$result instanceof Exception) {
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$output = $result;
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}
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if (!$output instanceof Exception) {
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return $output;
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}
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}
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/**
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*
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*
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* @param string $route
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*/
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public function model($route) {
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// Sanitize the call
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$route = preg_replace('/[^a-zA-Z0-9_\/]/', '', (string)$route);
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if (!$this->registry->has('model_' . str_replace('/', '_', $route))) {
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$file = DIR_APPLICATION . 'model/' . $route . '.php';
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$class = 'Model' . preg_replace('/[^a-zA-Z0-9]/', '', $route);
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if (is_file($file)) {
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include_once(modification($file));
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$proxy = new Proxy();
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// Overriding models is a little harder so we have to use PHP's magic methods
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// In future version we can use runkit
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foreach (get_class_methods($class) as $method) {
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$proxy->{$method} = $this->callback($this->registry, $route . '/' . $method);
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}
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$this->registry->set('model_' . str_replace('/', '_', (string)$route), $proxy);
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} else {
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throw new \Exception('Error: Could not load model ' . $route . '!');
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}
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}
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}
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/**
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*
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*
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* @param string $route
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* @param array $data
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*
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* @return string
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*/
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public function view($route, $data = array()) {
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// Sanitize the call
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$route = preg_replace('/[^a-zA-Z0-9_\/]/', '', (string)$route);
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// Keep the original trigger
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$trigger = $route;
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// Template contents. Not the output!
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$code = '';
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// Trigger the pre events
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$result = $this->registry->get('event')->trigger('view/' . $trigger . '/before', array(&$route, &$data, &$code));
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// Make sure its only the last event that returns an output if required.
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if ($result && !$result instanceof Exception) {
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$output = $result;
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} else {
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$template = new Template($this->registry->get('config')->get('template_engine'));
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foreach ($data as $key => $value) {
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$template->set($key, $value);
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}
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$output = $template->render($this->registry->get('config')->get('template_directory') . $route, $code);
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}
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// Trigger the post events
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$result = $this->registry->get('event')->trigger('view/' . $trigger . '/after', array(&$route, &$data, &$output));
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if ($result && !$result instanceof Exception) {
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$output = $result;
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}
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return $output;
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}
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/**
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*
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*
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* @param string $route
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*/
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public function library($route) {
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// Sanitize the call
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$route = preg_replace('/[^a-zA-Z0-9_\/]/', '', (string)$route);
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$file = DIR_SYSTEM . 'library/' . $route . '.php';
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$class = str_replace('/', '\\', $route);
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if (is_file($file)) {
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include_once(modification($file));
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$this->registry->set(basename($route), new $class($this->registry));
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} else {
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throw new \Exception('Error: Could not load library ' . $route . '!');
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}
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}
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/**
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*
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*
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* @param string $route
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*/
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public function helper($route) {
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$file = DIR_SYSTEM . 'helper/' . preg_replace('/[^a-zA-Z0-9_\/]/', '', (string)$route) . '.php';
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if (is_file($file)) {
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include_once(modification($file));
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} else {
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throw new \Exception('Error: Could not load helper ' . $route . '!');
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}
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}
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/**
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*
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*
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* @param string $route
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*/
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public function config($route) {
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$this->registry->get('event')->trigger('config/' . $route . '/before', array(&$route));
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$this->registry->get('config')->load($route);
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$this->registry->get('event')->trigger('config/' . $route . '/after', array(&$route));
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}
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/**
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*
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*
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* @param string $route
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* @param string $key
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*
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* @return array
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*/
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public function language($route, $key = '') {
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// Sanitize the call
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$route = preg_replace('/[^a-zA-Z0-9_\/]/', '', (string)$route);
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// Keep the original trigger
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$trigger = $route;
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$result = $this->registry->get('event')->trigger('language/' . $trigger . '/before', array(&$route, &$key));
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if ($result && !$result instanceof Exception) {
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$output = $result;
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} else {
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$output = $this->registry->get('language')->load($route, $key);
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}
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$result = $this->registry->get('event')->trigger('language/' . $trigger . '/after', array(&$route, &$key, &$output));
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if ($result && !$result instanceof Exception) {
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$output = $result;
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}
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return $output;
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}
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protected function callback($registry, $route) {
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return function($args) use($registry, $route) {
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static $model;
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$route = preg_replace('/[^a-zA-Z0-9_\/]/', '', (string)$route);
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// Keep the original trigger
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$trigger = $route;
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// Trigger the pre events
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$result = $registry->get('event')->trigger('model/' . $trigger . '/before', array(&$route, &$args));
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if ($result && !$result instanceof Exception) {
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$output = $result;
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} else {
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$class = 'Model' . preg_replace('/[^a-zA-Z0-9]/', '', substr($route, 0, strrpos($route, '/')));
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// Store the model object
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$key = substr($route, 0, strrpos($route, '/'));
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if (!isset($model[$key])) {
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$model[$key] = new $class($registry);
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}
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$method = substr($route, strrpos($route, '/') + 1);
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$callable = array($model[$key], $method);
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if (is_callable($callable)) {
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$output = call_user_func_array($callable, $args);
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} else {
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throw new \Exception('Error: Could not call model/' . $route . '!');
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}
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}
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// Trigger the post events
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$result = $registry->get('event')->trigger('model/' . $trigger . '/after', array(&$route, &$args, &$output));
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if ($result && !$result instanceof Exception) {
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$output = $result;
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}
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return $output;
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};
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}
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}
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