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<?php
/**
* @package com_zoo
* @author YOOtheme http://www.yootheme.com
* @copyright Copyright (C) YOOtheme GmbH
* @license http://www.gnu.org/licenses/gpl.html GNU/GPL
*/
/**
* Modifications helper class.
*
* @package Component.Helpers
* @since 2.0
*/
class ModificationHelper extends AppHelper {
/**
* Verifies the ZOO installation.
*
* @return boolean true if ZOO hasn't been modified
* @since 2.0
*/
public function verify() {
$result = $this->check();
return empty($result);
}
/**
* Checks for ZOO modifications.
*
* @return array modified files
* @throws AppModificationException
* @since 2.0
*/
public function check() {
if (!$checksum = $this->app->path->path('component.admin:checksums')) {
throw new AppModificationException(JText::_('Unable to locate checksums file in ' . $this->app->path->path('component.admin:')));
}
$path = $this->app->path->path('component.admin:');
$this->app->checksum->verify($path, $checksum, $result, array(
create_function('$path', 'return (in_array($path, array("zoo.xml", "file.script.php")) ? "admin/" . $path : $path);'),
create_function('$path', 'if (preg_match("#^admin#", $path)) return preg_replace("#^admin/#", "", $path);'),
), $this->app->path->relative($path).'/');
$path = $this->app->path->path('component.site:');
$this->app->checksum->verify($path, $checksum, $result, array(
create_function('$path', 'if (preg_match("#^site#", $path)) return preg_replace("#^site/#", "", $path);')
), $this->app->path->relative($path).'/');
return $result;
}
/**
* Cleans any modifications from the filessystem.
*
* @return boolean true on success
* @since 2.0
*/
public function clean() {
// check for modifications
$results = $this->check();
if (isset($results['unknown'])) {
foreach ($results['unknown'] as $file) {
if (!empty($file) && ($file = $this->app->path->path('root:'.$file))) {
// remove unknown file
if (!JFile::delete($file)) {
$this->app->error->raiseWarning(0, sprintf(JText::_('Could not remove file (%s)'), $file));
}
}
}
}
return true;
}
}
/**
* AppModificationException identifies an Exception in the ModificationHelper class
* @see ModificationHelper
*/
class AppModificationException extends AppException {}