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