<?php
/*
* 2007-2015 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
* /ersions 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  2007-2015 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

$filePrefix = 'PREFIX_';
$engineType = 'ENGINE_TYPE';

// Set execution time and time_limit to infinite if available
@set_time_limit(0);
@ini_set('max_execution_time', '0');

// setting the memory limit to 128M only if current is lower
$memory_limit = ini_get('memory_limit');
if (substr($memory_limit,-1) != 'G'
	AND ((substr($memory_limit,-1) == 'M' AND substr($memory_limit,0, -1) < 128)
	OR is_numeric($memory_limit) AND (intval($memory_limit) < 131072) AND $memory_limit > 0)
)
	@ini_set('memory_limit','128M');

// redefine REQUEST_URI if empty (on some webservers...)
if (!isset($_SERVER['REQUEST_URI']) || $_SERVER['REQUEST_URI'] == '')
{
	if (!isset($_SERVER['SCRIPT_NAME']) && isset($_SERVER['SCRIPT_FILENAME']))
		$_SERVER['SCRIPT_NAME'] = $_SERVER['SCRIPT_FILENAME'];
	else
		$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'];
}

if ($tmp = strpos($_SERVER['REQUEST_URI'], '?'))
	$_SERVER['REQUEST_URI'] = substr($_SERVER['REQUEST_URI'], 0, $tmp);
$_SERVER['REQUEST_URI'] = str_replace('//', '/', $_SERVER['REQUEST_URI']);

// retrocompatibility (is present in some upgrade scripts)
define('INSTALL_PATH', dirname(dirname(__FILE__)).'/');

require_once(INSTALL_PATH . 'install_version.php');

define('SETTINGS_FILE', INSTALL_PATH . '/../config/settings.inc.php');

if (file_exists(SETTINGS_FILE))
	include_once(SETTINGS_FILE);
else
	die('settings.inc.php is missing (error code 30).');

// need for upgrade before 1.5
if (!defined('__PS_BASE_URI__'))
	define('__PS_BASE_URI__', str_replace('//', '/', '/'.trim(preg_replace('#/(install(-dev)?/upgrade)$#', '/', str_replace('\\', '/', dirname($_SERVER['REQUEST_URI']))), '/').'/'));

// need for upgrade before 1.5
if (!defined('_THEME_NAME_'))
define('_THEME_NAME_', 'default');

require_once(dirname(__FILE__).'/../init.php');

// set logger
require_once(_PS_INSTALL_PATH_.'upgrade/classes/AbstractLogger.php');
eval('abstract class AbstractLogger extends AbstractLoggerCore{}');
require_once(_PS_INSTALL_PATH_.'upgrade/classes/FileLogger.php');
eval('class FileLogger extends FileLoggerCore{}');

$logger = new FileLogger();
$logger->setFilename(_PS_ROOT_DIR_.'/log/'.@date('Ymd').'_upgrade.log');

if (function_exists('date_default_timezone_set'))
	date_default_timezone_set('Europe/Paris');

// if _PS_ROOT_DIR_ is defined, use it instead of "guessing" the module dir.
if (defined('_PS_ROOT_DIR_') AND !defined('_PS_MODULE_DIR_'))
	define('_PS_MODULE_DIR_', _PS_ROOT_DIR_.'/modules/');
elseif (!defined('_PS_MODULE_DIR_'))
	define('_PS_MODULE_DIR_', _PS_INSTALL_PATH_.'/../modules/');

if (!defined('_PS_INSTALLER_PHP_UPGRADE_DIR_'))
	define('_PS_INSTALLER_PHP_UPGRADE_DIR_',  _PS_INSTALL_PATH_.'upgrade/php/');

if (!defined('_PS_INSTALLER_SQL_UPGRADE_DIR_'))
	define('_PS_INSTALLER_SQL_UPGRADE_DIR_',  _PS_INSTALL_PATH_.'upgrade/sql/');


//old version detection
global $oldversion, $logger;
$oldversion = false;

//sql file execution
global $requests, $warningExist;
$requests = '';
$fail_result = '';
$warningExist = false;


if (!defined('_THEMES_DIR_'))
	define('_THEMES_DIR_', __PS_BASE_URI__.'themes/');
if (!defined('_PS_IMG_'))
	define('_PS_IMG_', __PS_BASE_URI__.'img/');
if (!defined('_PS_JS_DIR_'))
	define('_PS_JS_DIR_', __PS_BASE_URI__.'js/');
if (!defined('_PS_CSS_DIR_'))
	define('_PS_CSS_DIR_', __PS_BASE_URI__.'css/');

$oldversion = _PS_VERSION_;

$versionCompare =  version_compare(_PS_INSTALL_VERSION_, $oldversion);

if ($versionCompare == '-1')
{
	$logger->logError('This installer is too old.');
	$requests .= '<action result="fail" error="27" />'."\n";
}
elseif ($versionCompare == 0)
{
	$logger->logError(sprintf('You already have the %s version.',_PS_INSTALL_VERSION_));
	$fail_result .= '<action result="fail" error="28" />'."\n";
}
elseif ($versionCompare === false)
{
	$logger->logError('There is no older version. Did you delete or rename the config/settings.inc.php file?');
	$fail_result .= '<action result="fail" error="29" />'."\n";
}

if((defined('_PS_CACHE_ENABLED_') && _PS_CACHE_ENABLED_))
{
	$logger->logError('The cache is activated. Please deactivate it first before lauching this script.');
	$fail_result .= '<action result="fail" error="35" />'."\n";
}


//check DB access
// include_once(_PS_INSTALL_PATH_.'/classes/ToolsInstall.php');
// $resultDB = ToolsInstall::checkDB(_DB_SERVER_, _DB_USER_, _DB_PASSWD_, _DB_NAME_, false);
/*
if ($resultDB !== true)
{
	$logger->logError('Invalid database configuration.');
	die("<action result='fail' error='".$resultDB."'/>\n");
}
*/

//
//custom sql file creation
$upgradeFiles = array();
if (empty ($fail_result))
{
	if ($handle = opendir(_PS_INSTALLER_SQL_UPGRADE_DIR_))
	{
			while (false !== ($file = readdir($handle)))
					if ($file != '.' AND $file != '..')
							$upgradeFiles[] = str_replace(".sql", "", $file);
			closedir($handle);
	}
	if (empty($upgradeFiles))
	{
		$logger->logError('Can\'t find the sql upgrade files. Please verify that the /install/sql/upgrade folder is not empty)');
		$fail_result .=  '<action result="fail" error="31" />'."\n";
	}
	natcasesort($upgradeFiles);
}

// fix : complete version number if there is not all 4 numbers
// for example replace 1.4.3 by 1.4.3.0
// consequences : file 1.4.3.0.sql will be skipped if oldversion = 1.4.3
// @since 1.4.4.0
$arrayVersion = preg_split('#\.#', $oldversion);
$versionNumbers = sizeof($arrayVersion);

if ($versionNumbers != 4)
	$arrayVersion = array_pad($arrayVersion, 4, '0');

$oldversion = implode('.', $arrayVersion);
// end of fix

$neededUpgradeFiles = array();
foreach ($upgradeFiles as $version)
{
	if (version_compare($version, $oldversion) == 1 AND version_compare(_PS_INSTALL_VERSION_, $version) != -1)
	$neededUpgradeFiles[] = $version;
}

if (empty ($fail_result) && empty($neededUpgradeFiles))
{
	$logger->logError('No upgrade is possible.');
	$fail_result .= '<action result="fail" error="32" />'."\n";
}


// refresh conf file
require_once(_PS_INSTALL_PATH_.'upgrade/classes/AddConfToFile.php');

$oldLevel = error_reporting(E_ALL);
$mysqlEngine = (defined('_MYSQL_ENGINE_') ? _MYSQL_ENGINE_ : 'MyISAM');

if (defined('_PS_CACHING_SYSTEM_') AND _PS_CACHING_SYSTEM_ == 'CacheFS')
	$cache_engine = 'CacheFs';
elseif (defined('_PS_CACHING_SYSTEM_') AND _PS_CACHING_SYSTEM_ != 'CacheMemcache' AND _PS_CACHING_SYSTEM_ != 'CacheMemcached')
	$cache_engine = _PS_CACHING_SYSTEM_;
else
	$cache_engine = 'CacheMemcache';
$datas = array(
	array('_DB_SERVER_', _DB_SERVER_),
	array('_DB_NAME_', _DB_NAME_),
	array('_DB_USER_', _DB_USER_),
	array('_DB_PASSWD_', _DB_PASSWD_),
	array('_DB_PREFIX_', _DB_PREFIX_),
	array('_MYSQL_ENGINE_', $mysqlEngine),
	array('_PS_CACHING_SYSTEM_', $cache_engine),
	array('_PS_CACHE_ENABLED_', defined('_PS_CACHE_ENABLED_') ? _PS_CACHE_ENABLED_ : '0'),
	// 1.4 only
	// array('__PS_BASE_URI__', __PS_BASE_URI__),
	// 1.4 only
	// array('_THEME_NAME_', _THEME_NAME_),
	array('_PS_DIRECTORY_', __PS_BASE_URI__),
	array('_COOKIE_KEY_', _COOKIE_KEY_),
	array('_COOKIE_IV_', _COOKIE_IV_),
	array('_PS_CREATION_DATE_', defined("_PS_CREATION_DATE_") ? _PS_CREATION_DATE_ : date('Y-m-d')),
	array('_PS_VERSION_', _PS_INSTALL_VERSION_)
);

if (version_compare(_PS_INSTALL_VERSION_, '1.6.0.11', '<'))
{
	$datas[] = array('_MEDIA_SERVER_1_', defined('_MEDIA_SERVER_1_') ? _MEDIA_SERVER_1_ : '');
	$datas[] = array('_MEDIA_SERVER_2_', defined('_MEDIA_SERVER_2_') ? _MEDIA_SERVER_2_ : '');
	$datas[] = array('_MEDIA_SERVER_3_', defined('_MEDIA_SERVER_3_') ? _MEDIA_SERVER_3_ : '');
}

if (defined('_RIJNDAEL_KEY_'))
	$datas[] = array('_RIJNDAEL_KEY_', _RIJNDAEL_KEY_);
if (defined('_RIJNDAEL_IV_'))
	$datas[] = array('_RIJNDAEL_IV_', _RIJNDAEL_IV_);
if(!defined('_PS_CACHE_ENABLED_'))
	define('_PS_CACHE_ENABLED_', '0');
if(!defined('_MYSQL_ENGINE_'))
	define('_MYSQL_ENGINE_', 'MyISAM');

global $smarty;
// Clean all cache values
Cache::clean('*');

Context::getContext()->shop = new Shop(1);
Shop::setContext(Shop::CONTEXT_SHOP, 1);

if (!isset(Context::getContext()->language) || !Validate::isLoadedObject(Context::getContext()->language))
	if ($id_lang = (int)getConfValue('PS_LANG_DEFAULT'))
		Context::getContext()->language = new Language($id_lang);
if (!isset(Context::getContext()->country) || !Validate::isLoadedObject(Context::getContext()->country))
	if ($id_country = (int)getConfValue('PS_COUNTRY_DEFAULT'))
		Context::getContext()->country = new Country((int)$id_country);

Context::getContext()->cart = new Cart();
Context::getContext()->employee = new Employee(1);
if (!defined('_PS_SMARTY_FAST_LOAD_'))
	define('_PS_SMARTY_FAST_LOAD_', true);
require_once _PS_ROOT_DIR_.'/config/smarty.config.inc.php';

Context::getContext()->smarty = $smarty;

if(isset($_GET['customModule']) AND $_GET['customModule'] == 'desactivate')
{
	require_once(_PS_INSTALLER_PHP_UPGRADE_DIR_.'deactivate_custom_modules.php');
	deactivate_custom_modules();
}
$sqlContentVersion = array();
if (empty($fail_result))
	foreach($neededUpgradeFiles AS $version)
	{
		$file = _PS_INSTALLER_SQL_UPGRADE_DIR_.$version.'.sql';
		if (!file_exists($file))
		{
			$logger->logError('Error while loading sql upgrade file.');
			$fail_result .= '<action result="fail" error="33" sqlfile="'.$version.'" />'."\n";
		}
		if (!$sqlContent = file_get_contents($file))
		{
			$logger->logError(sprintf('Error while loading sql upgrade file %s.', $version));
			$fail_result .= '<action result="fail" error="33" />'."\n";
		}
		$sqlContent .= "\n";
		$sqlContent = str_replace(array($filePrefix, $engineType), array(_DB_PREFIX_, $mysqlEngine), $sqlContent);
		$sqlContent = preg_split("/;\s*[\r\n]+/", $sqlContent);

		$sqlContentVersion[$version] = $sqlContent;
	}


if (empty($fail_result))
{
	error_reporting($oldLevel);
	$confFile = new AddConfToFile(SETTINGS_FILE, 'w');
	if ($confFile->error)
	{
		$logger->logError($confFile->error);
		$fail_result .= '<action result="fail" error="'.$confFile->error.'" />'."\n";
	}
	else
		foreach ($datas as $data)
			$confFile->writeInFile($data[0], $data[1]);
	if ($confFile->error != false)
	{
		$logger->logError($confFile->error);
		$fail_result .= '<action result="fail" error="'.$confFile->error.'" />'."\n";
	}
}

if (empty($fail_result))
{
	foreach ($sqlContentVersion as $version => $sqlContent)
		foreach ($sqlContent as $query)
		{
			$query = trim($query);
			if(!empty($query))
			{
				/* If php code have to be executed */
				if (strpos($query, '/* PHP:') !== false)
				{
					/* Parsing php code */
					$pos = strpos($query, '/* PHP:') + strlen('/* PHP:');
					$phpString = substr($query, $pos, strlen($query) - $pos - strlen(' */;'));
					$php = explode('::', $phpString);
					preg_match('/\((.*)\)/', $phpString, $pattern);
					$paramsString = trim($pattern[0], '()');
					preg_match_all('/([^,]+),? ?/', $paramsString, $parameters);
					if (isset($parameters[1]))
						$parameters = $parameters[1];
					else
						$parameters = array();
					if (is_array($parameters))
						foreach ($parameters as &$parameter)
							$parameter = str_replace('\'', '', $parameter);

					/* Call a simple function */
					if (strpos($phpString, '::') === false)
					{
						$func_name = str_replace($pattern[0], '', $php[0]);
						require_once(_PS_INSTALLER_PHP_UPGRADE_DIR_.Tools::strtolower($func_name).'.php');
						$phpRes = call_user_func_array($func_name, $parameters);
					}
					/* Or an object method */
					else
					{
						$func_name = array($php[0], str_replace($pattern[0], '', $php[1]));
						$phpRes = call_user_func_array($func_name, $parameters);
					}
					if ((is_array($phpRes) AND !empty($phpRes['error'])) OR $phpRes === false )
					{
						$warningExist = true;
						$logger->logError('PHP error: '.$query."\r\n".(empty($phpRes['msg'])?'':' - '.$phpRes['msg']));
						$logger->logError(empty($phpRes['error'])?'':$phpRes['error']);
						$requests .= '
			<request result="fail" sqlfile="'.$version.'">
				<sqlQuery><![CDATA['.htmlentities($query).']]></sqlQuery>
				<phpMsgError><![CDATA['.(empty($phpRes['msg'])?'':$phpRes['msg']).']]></phpMsgError>
				<phpNumberError><![CDATA['.(empty($phpRes['error'])?'':$phpRes['error']).']]></phpNumberError>
			</request>'."\n";
					}
					else
						$requests .=
		'	<request result="ok" sqlfile="'.$version.'">
				<sqlQuery><![CDATA['.htmlentities($query).']]></sqlQuery>
			</request>'."\n";
				}
				elseif (!Db::getInstance()->execute($query))
				{
					$logger->logError('SQL query: '."\r\n".$query);
					$logger->logError('SQL error: '."\r\n".Db::getInstance()->getMsgError());
					$warningExist = true;
					$requests .= '
	<request result="fail" sqlfile="'.$version.'" >
		<sqlQuery><![CDATA['.htmlentities($query).']]></sqlQuery>
		<sqlMsgError><![CDATA['.htmlentities(Db::getInstance()->getMsgError()).']]></sqlMsgError>
			<sqlNumberError><![CDATA['.htmlentities(Db::getInstance()->getNumberError()).']]></sqlNumberError>
		</request>'."\n";
				}
				else
					$requests .='
	<request result="ok" sqlfile="'.$version.'">
			<sqlQuery><![CDATA['.htmlentities($query).']]></sqlQuery>
		</request>'."\n";
			}
		}
	Configuration::loadConfiguration();


	// Settings updated, compile and cache directories must be emptied
	$tools_dir = rtrim(_PS_INSTALL_PATH_, '\\/').DIRECTORY_SEPARATOR.'..'.DIRECTORY_SEPARATOR.'tools'.DIRECTORY_SEPARATOR;
	$arrayToClean = array(
		$tools_dir.'smarty'.DIRECTORY_SEPARATOR.'cache',
		$tools_dir.'smarty'.DIRECTORY_SEPARATOR.'compile',
		$tools_dir.'smarty_v2'.DIRECTORY_SEPARATOR.'cache',
		$tools_dir.'smarty_v2'.DIRECTORY_SEPARATOR.'compile'
	);
	foreach ($arrayToClean as $dir)
		if (file_exists($dir))
			foreach (scandir($dir) as $file)
				if ($file[0] != '.' AND $file != 'index.php' AND $file != '.htaccess')
					unlink($dir.DIRECTORY_SEPARATOR.$file);

	// delete cache filesystem if activated
	$depth = getConfValue('PS_CACHEFS_DIRECTORY_DEPTH');
	if (defined('_PS_CACHE_ENABLED_') && _PS_CACHE_ENABLED_  && $depth)
	{
		CacheFs::deleteCacheDirectory();
		CacheFs::createCacheDirectories((int)$depth);
	}
}
$result = '<?xml version="1.0" encoding="UTF-8"?>';
if (empty($fail_result))
{
	Configuration::updateValue('PS_HIDE_OPTIMIZATION_TIPS', 0);
	Configuration::updateValue('PS_NEED_REBUILD_INDEX', 1);
	Configuration::updateValue('PS_VERSION_DB', _PS_INSTALL_VERSION_);
	$result .= $warningExist ? '<action result="fail" error="34">'."\n" : '<action result="ok" error="">'."\n";
	$result .= $requests;
	$result .= '</action>'."\n";
}
else
	$result = $fail_result;

if (!isset($return_type))
	$return_type = 'xml';

// format available
// 1) output on screen
// - xml (default)
// - json
// 2) return value in php
// - include : variable $result available after inclusion
// 3) file_get_contents()
// - eval : $res = eval(file_get_contents());
if (empty($return_type) || $return_type == 'xml')
{
	header('Content-Type: text/xml');
	echo $result;
}
else
{
	// result in xml to array
	$result = simplexml_load_string($result);
	if (!class_exists('ToolsInstall', false))
		if(file_exists(_PS_INSTALL_PATH_.'/upgrade/classes/ToolsInstall.php'))
			include_once(_PS_INSTALL_PATH_.'/upgrade/classes/ToolsInstall.php');

	if (class_exists('ToolsInstall', false))
	{
		$result = ToolsInstall::simpleXMLToArray($result);
		switch ($return_type)
		{
			case 'json':
				header('Content-Type: application/json');
				if (function_exists('json_encode'))
					$result = json_encode($result);
				else
				{
					include_once(INSTALL_PATH.'/../tools/json/json.php');
					$pearJson = new Services_JSON();
					$result = $pearJson->encode($result);
				}
				echo $result;
				break;
			case 'eval':
				return $result;
			case 'include':
				break;
		}
	}
}
function getConfValue($name)
{
	$full = version_compare('1.5.0.10', _PS_VERSION_) < 0;

	$sql = 'SELECT IF(cl.`id_lang` IS NULL, c.`value`, cl.`value`) AS value
			FROM `'._DB_PREFIX_.'configuration` c
			LEFT JOIN `'._DB_PREFIX_.'configuration_lang` cl ON (c.`id_configuration` = cl.`id_configuration`)
			WHERE c.`name`=\''.pSQL($name).'\'';

	if ($full)
	{
		$id_shop = Shop::getContextShopID(true);
		$id_shop_group = Shop::getContextShopGroupID(true);
		if ($id_shop)
			$sql .= ' AND c.`id_shop` = '.(int)$id_shop;
		if ($id_shop_group)
			$sql .= ' AND c.`id_shop_group` = '.(int)$id_shop_group;
	}
	return Db::getInstance()->getValue($sql);
}
