227 lines
8.3 KiB
PHP
227 lines
8.3 KiB
PHP
<?php
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/*
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* 2007-2016 PrestaShop
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*
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* NOTICE OF LICENSE
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*
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* This source file is subject to the Open Software License (OSL 3.0)
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* that is bundled with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://opensource.org/licenses/osl-3.0.php
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@prestashop.com so we can send you a copy immediately.
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*
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* DISCLAIMER
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*
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* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
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* versions in the future. If you wish to customize PrestaShop for your
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* needs please refer to http://www.prestashop.com for more information.
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*
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* @author PrestaShop SA <contact@prestashop.com>
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* @copyright 2007-2016 PrestaShop SA
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
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* International Registered Trademark & Property of PrestaShop SA
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*/
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/**
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* @since 1.5
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*/
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class PrestaShopAutoload
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{
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/**
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* File where classes index is stored
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*/
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const INDEX_FILE = 'cache/class_index.php';
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/**
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* @var PrestaShopAutoload
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*/
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protected static $instance;
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/**
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* @var string Root directory
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*/
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protected $root_dir;
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/**
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* @var array array('classname' => 'path/to/override', 'classnamecore' => 'path/to/class/core')
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*/
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public $index = array();
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public $_include_override_path = true;
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protected static $class_aliases = array(
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'Collection' => 'PrestaShopCollection',
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'Autoload' => 'PrestaShopAutoload',
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'Backup' => 'PrestaShopBackup',
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'Logger' => 'PrestaShopLogger'
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);
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protected function __construct()
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{
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$this->root_dir = _PS_CORE_DIR_.'/';
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$file = $this->normalizeDirectory(_PS_ROOT_DIR_).PrestaShopAutoload::INDEX_FILE;
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if (@filemtime($file) && is_readable($file)) {
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$this->index = include($file);
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} else {
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$this->generateIndex();
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}
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}
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/**
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* Get instance of autoload (singleton)
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*
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* @return PrestaShopAutoload
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*/
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public static function getInstance()
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{
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if (!PrestaShopAutoload::$instance) {
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PrestaShopAutoload::$instance = new PrestaShopAutoload();
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}
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return PrestaShopAutoload::$instance;
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}
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/**
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* Retrieve informations about a class in classes index and load it
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*
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* @param string $classname
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*/
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public function load($classname)
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{
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// Retrocompatibility
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if (isset(PrestaShopAutoload::$class_aliases[$classname]) && !interface_exists($classname, false) && !class_exists($classname, false)) {
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return eval('class '.$classname.' extends '.PrestaShopAutoload::$class_aliases[$classname].' {}');
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}
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// regenerate the class index if the requested file doesn't exists
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if ((isset($this->index[$classname]) && $this->index[$classname]['path'] && !is_file($this->root_dir.$this->index[$classname]['path']))
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|| (isset($this->index[$classname.'Core']) && $this->index[$classname.'Core']['path'] && !is_file($this->root_dir.$this->index[$classname.'Core']['path']))) {
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$this->generateIndex();
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}
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// If $classname has not core suffix (E.g. Shop, Product)
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if (substr($classname, -4) != 'Core') {
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$class_dir = (isset($this->index[$classname]['override'])
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&& $this->index[$classname]['override'] === true) ? $this->normalizeDirectory(_PS_ROOT_DIR_) : $this->root_dir;
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// If requested class does not exist, load associated core class
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if (isset($this->index[$classname]) && !$this->index[$classname]['path']) {
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require_once($class_dir.$this->index[$classname.'Core']['path']);
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if ($this->index[$classname.'Core']['type'] != 'interface') {
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eval($this->index[$classname.'Core']['type'].' '.$classname.' extends '.$classname.'Core {}');
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}
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} else {
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// request a non Core Class load the associated Core class if exists
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if (isset($this->index[$classname.'Core'])) {
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require_once($this->root_dir.$this->index[$classname.'Core']['path']);
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}
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if (isset($this->index[$classname])) {
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require_once($class_dir.$this->index[$classname]['path']);
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}
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}
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}
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// Call directly ProductCore, ShopCore class
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elseif (isset($this->index[$classname]['path']) && $this->index[$classname]['path']) {
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require_once($this->root_dir.$this->index[$classname]['path']);
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}
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}
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/**
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* Generate classes index
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*/
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public function generateIndex()
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{
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$classes = array_merge(
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$this->getClassesFromDir('classes/'),
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$this->getClassesFromDir('controllers/'),
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$this->getClassesFromDir('Adapter/'),
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$this->getClassesFromDir('Core/')
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);
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if ($this->_include_override_path) {
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$classes = array_merge(
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$classes,
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$this->getClassesFromDir('override/classes/', defined('_PS_HOST_MODE_')),
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$this->getClassesFromDir('override/controllers/', defined('_PS_HOST_MODE_'))
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);
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}
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ksort($classes);
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$content = '<?php return '.var_export($classes, true).'; ?>';
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// Write classes index on disc to cache it
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$filename = $this->normalizeDirectory(_PS_ROOT_DIR_).PrestaShopAutoload::INDEX_FILE;
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$filename_tmp = tempnam(dirname($filename), basename($filename.'.'));
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if ($filename_tmp !== false && file_put_contents($filename_tmp, $content) !== false) {
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if (!@rename($filename_tmp, $filename)) {
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unlink($filename_tmp);
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} else {
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@chmod($filename, 0666);
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}
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}
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// $filename_tmp couldn't be written. $filename should be there anyway (even if outdated), no need to die.
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else {
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Tools::error_log('Cannot write temporary file '.$filename_tmp);
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}
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$this->index = $classes;
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}
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/**
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* Retrieve recursively all classes in a directory and its subdirectories
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*
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* @param string $path Relativ path from root to the directory
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* @return array
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*/
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protected function getClassesFromDir($path, $host_mode = false)
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{
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$classes = array();
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$root_dir = $host_mode ? $this->normalizeDirectory(_PS_ROOT_DIR_) : $this->root_dir;
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foreach (scandir($root_dir.$path) as $file) {
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if ($file[0] != '.') {
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if (is_dir($root_dir.$path.$file)) {
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$classes = array_merge($classes, $this->getClassesFromDir($path.$file.'/', $host_mode));
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} elseif (substr($file, -4) == '.php') {
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$content = file_get_contents($root_dir.$path.$file);
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$namespacePattern = '[\\a-z0-9_]*[\\]';
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$pattern = '#\W((abstract\s+)?class|interface)\s+(?P<classname>'.basename($file, '.php').'(?:Core)?)'
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.'(?:\s+extends\s+'.$namespacePattern.'[a-z][a-z0-9_]*)?(?:\s+implements\s+'.$namespacePattern.'[a-z][\\a-z0-9_]*(?:\s*,\s*'.$namespacePattern.'[a-z][\\a-z0-9_]*)*)?\s*\{#i';
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if (preg_match($pattern, $content, $m)) {
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$classes[$m['classname']] = array(
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'path' => $path.$file,
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'type' => trim($m[1]),
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'override' => $host_mode
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);
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if (substr($m['classname'], -4) == 'Core') {
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$classes[substr($m['classname'], 0, -4)] = array(
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'path' => '',
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'type' => $classes[$m['classname']]['type'],
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'override' => $host_mode
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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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return $classes;
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}
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public function getClassPath($classname)
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{
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return (isset($this->index[$classname]) && isset($this->index[$classname]['path'])) ? $this->index[$classname]['path'] : null;
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}
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private function normalizeDirectory($directory)
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{
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return rtrim($directory, '/\\').DIRECTORY_SEPARATOR;
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}
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}
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