223 lines
6.6 KiB
PHP
223 lines
6.6 KiB
PHP
<?php
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/*
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* 2007-2011 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 2007-2011 PrestaShop SA
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* @version Release: $Revision$
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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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class UpgraderCore
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{
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const DEFAULT_CHECK_VERSION_DELAY_HOURS = 24;
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public $rss_version_link = 'http://www.prestashop.com/xml/upgrader.xml';
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public $rss_md5file_link_dir = 'http://www.prestashop.com/xml/md5/';
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/**
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* link contains hte url where to download the file
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*
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* @var string
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*/
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private $need_upgrade = false;
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private $changed_files = array();
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private $missing_files = array();
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public $version_name;
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public $version_num;
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public $link;
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public $autoupgrade;
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public $autoupgrade_module;
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public $changelog;
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public $md5;
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public function __get($var)
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{
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if ($var == 'need_upgrade')
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return $this->isLastVersion();
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}
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/**
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* downloadLast download the last version of PrestaShop and save it in $dest/$filename
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*
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* @param string $dest directory where to save the file
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* @param string $filename new filename
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* @return boolean
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*
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* @TODO ftp if copy is not possible (safe_mode for example)
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*/
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public function downloadLast($dest, $filename = 'prestashop.zip')
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{
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if (empty($this->link))
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$this->checkPSVersion();
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if (@copy($this->link, realpath($dest).DIRECTORY_SEPARATOR.$filename))
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return true;
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else
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return false;
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}
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public function isLastVersion()
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{
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if (empty($this->link))
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$this->checkPSVersion();
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return $this->need_upgrade;
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}
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/**
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* checkPSVersion ask to prestashop.com if there is a new version. return an array if yes, false otherwise
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*
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* @return mixed
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*/
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public function checkPSVersion($force = false)
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{
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if (empty($this->link))
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{
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if (class_exists('Configuration'))
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$last_check = Configuration::get('PS_LAST_VERSION_CHECK');
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else
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$last_check = 0;
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// if we use the autoupgrade process, we will never refresh it
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// except if no check has been done before
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if ($force || ($last_check < time() - (3600 * Upgrader::DEFAULT_CHECK_VERSION_DELAY_HOURS)))
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{
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libxml_set_streams_context(@stream_context_create(array('http' => array('timeout' => 3))));
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if ($feed = @simplexml_load_file($this->rss_version_link))
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{
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$this->version_name = (string)$feed->version->name;
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$this->version_num = (string)$feed->version->num;
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$this->link = (string)$feed->download->link;
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$this->md5 = (string)$feed->download->md5;
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$this->changelog = (string)$feed->download->changelog;
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$this->autoupgrade = (int)$feed->autoupgrade;
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$this->autoupgrade_module = (int)$feed->autoupgrade_module;
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$this->desc = (string)$feed->desc ;
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$config_last_version = array(
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'name' => $this->version_name,
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'num' => $this->version_num,
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'link' => $this->link,
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'md5' => $this->md5,
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'autoupgrade' => $this->autoupgrade,
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'autoupgrade_module' => $this->autoupgrade_module,
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'changelog' => $this->changelog,
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'desc' => $this->desc
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);
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if (class_exists('Configuration'))
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{
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Configuration::updateValue('PS_LAST_VERSION', serialize($config_last_version));
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Configuration::updateValue('PS_LAST_VERSION_CHECK',time());
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}
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}
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}
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else
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{
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$last_version_check = @unserialize(Configuration::get('PS_LAST_VERSION'));
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$this->version_name = $last_version_check['name'];
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$this->version_num = $last_version_check['num'];
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$this->link = $last_version_check['link'];
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$this->autoupgrade = $last_version_check['autoupgrade'];
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$this->autoupgrade_module = $last_version_check['autoupgrade_module'];
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$this->md5 = $last_version_check['md5'];
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$this->desc = $last_version_check['desc'];
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$this->changelog = $last_version_check['changelog'];
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}
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}
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// retro-compatibility :
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// return array(name,link) if you don't use the last version
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// false otherwise
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if (version_compare(_PS_VERSION_, $this->version_num, '<'))
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{
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$this->need_upgrade = true;
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return array('name' => $this->version_name, 'link' => $this->link);
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}
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else
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return false;
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}
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public function getChangedFilesList()
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{
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if (count($this->changed_files) == 0)
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{
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$checksum = @simplexml_load_file($this->rss_md5file_link_dir._PS_VERSION_.'.xml');
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if ($checksum === false)
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return false;
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else
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$this->browseXmlAndCompare($checksum->ps_root_dir[0]);
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}
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return $this->changed_files;
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}
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protected function addChangedFile($path)
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{
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$this->version_is_modified = true;
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$this->changed_files[] = $path;
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//array_unique($this->changed_files);
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}
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protected function addMissingFile($path)
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{
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$this->version_is_modified = true;
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$this->missing_files[] = $path;
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//array_unique($this->missingFile);
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}
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protected function browseXmlAndCompare($node, &$current_path = array(), $level = 1)
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{
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foreach ($node as $key => $child)
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{
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if (is_object($child) && $child->getName() == 'dir')
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{
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$current_path[$level] = (string)$child['name'];
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$this->browseXmlAndCompare($child, $current_path, $level + 1);
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}
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else if (is_object($child) && $child->getName() == 'md5file')
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{
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$path = _PS_ROOT_DIR_.DIRECTORY_SEPARATOR;
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for ($i = 1; $i < $level; $i++)
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$path .= $current_path[$i].'/';
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$path .= (string)$child['name'];
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$path = str_replace('ps_root_dir',_PS_ROOT_DIR_,$path);
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// replace default admin dir by current one
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$path = str_replace(_PS_ROOT_DIR_.'/admin', _PS_ADMIN_DIR_, $path);
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if(!file_exists($path))
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$this->addMissingFile($path);
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else if (!$this->compareChecksum($path, (string)$child))
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$this->addChangedFile($path);
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// else, file is original (and ok)
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}
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}
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}
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protected function compareChecksum($path, $original_sum)
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{
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if (md5_file($path) == $original_sum)
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return true;
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return false;
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}
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public function isAuthenticPrestashopVersion()
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{
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$this->getChangedFilesList();
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return !$this->version_is_modified;
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}
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}
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