/classes/Tools.php

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<?php
/*
* 2007-2012 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  2007-2012 PrestaShop SA
*  @version  Release: $Revision: 7521 $
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

class ToolsCore
{
	protected static $file_exists_cache = array();
	protected static $_forceCompile;
	protected static $_caching;

	/**
	* Random password generator
	*
	* @param integer $length Desired length (optional)
	* @param string $flag Output type (NUMERIC, ALPHANUMERIC, NO_NUMERIC)
	* @return string Password
	*/
	public static function passwdGen($length = 8, $flag = 'ALPHANUMERIC')
	{
		switch ($flag)
		{
			case 'NUMERIC':
				$str = '0123456789';
				break;
			case 'NO_NUMERIC':
				$str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
				break;
			default:
				$str = 'abcdefghijkmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
				break;
		}

		for ($i = 0, $passwd = ''; $i < $length; $i++)
			$passwd .= Tools::substr($str, mt_rand(0, Tools::strlen($str) - 1), 1);
		return $passwd;
	}

	public static function strReplaceFirst($search, $replace, $subject, $cur = 0)
	{
		return (strpos($subject, $search, $cur))?substr_replace($subject, $replace, (int)strpos($subject, $search, $cur), strlen($search)):$subject;
	}

	/**
	 * Redirect user to another page
	 *
	 * @param string $url Desired URL
	 * @param string $baseUri Base URI (optional)
	 * @param Link $link
	 * @param string|array $headers A list of headers to send before redirection
	 */
	public static function redirect($url, $base_uri = __PS_BASE_URI__, Link $link = null, $headers = null)
	{
		if (!$link)
			$link = Context::getContext()->link;

		if (strpos($url, 'http://') === false && strpos($url, 'https://') === false && $link)
		{
			if (strpos($url, $base_uri) === 0)
				$url = substr($url, strlen($base_uri));
			if (strpos($url, 'index.php?controller=') !== false && strpos($url, 'index.php/') == 0)
			{
				$url = substr($url, strlen('index.php?controller='));
				if (Configuration::get('PS_REWRITING_SETTINGS'))
					$url = Tools::strReplaceFirst('&', '?', $url);
			}

			$explode = explode('?', $url);
			// don't use ssl if url is home page
			// used when logout for example
			$use_ssl = !empty($url);
			$url = $link->getPageLink($explode[0], $use_ssl);
			if (isset($explode[1]))
				$url .= '?'.$explode[1];
		}

		// Send additional headers
		if ($headers)
		{
			if (!is_array($headers))
				$headers = array($headers);

			foreach ($headers as $header)
				header($header);
		}

		header('Location: '.$url);
		exit;
	}

	/**
	* Redirect url wich allready PS_BASE_URI
	*
	* @param string $url Desired URL
	*/
	public static function redirectLink($url)
	{
		if (!preg_match('@^https?://@i', $url))
		{
			if (strpos($url, __PS_BASE_URI__) !== false && strpos($url, __PS_BASE_URI__) == 0)
				$url = substr($url, strlen(__PS_BASE_URI__));
			if (strpos($url, 'index.php?controller=') !== false && strpos($url, 'index.php/') == 0)
				$url = substr($url, strlen('index.php?controller='));
			$explode = explode('?', $url);
			$url = Context::getContext()->link->getPageLink($explode[0]);
			if (isset($explode[1]))
				$url .= '?'.$explode[1];
		}
		header('Location: '.$url);
		exit;
	}

	/**
	* Redirect user to another admin page
	*
	* @param string $url Desired URL
	*/
	public static function redirectAdmin($url)
	{
		header('Location: '.$url);
		exit;
	}

	/**
	 * getShopProtocol return the available protocol for the current shop in use
	 * SSL if Configuration is set on and available for the server
	 * @static
	 * @return String
	 */
	public static function getShopProtocol()
	{
		$protocol = (Configuration::get('PS_SSL_ENABLED') || (!empty($_SERVER['HTTPS'])
			&& strtolower($_SERVER['HTTPS']) != 'off')) ? 'https://' : 'http://';
		return $protocol;
	}

	/**
	 * getProtocol return the set protocol according to configuration (http[s])
	 * @param bool $use_ssl true if require ssl
	 * @return String (http|https)
	 */
	public static function getProtocol($use_ssl = null)
	{
		return (!is_null($use_ssl) && $use_ssl ? 'https://' : 'http://');
	}

	/**
	 * getHttpHost return the <b>current</b> host used, with the protocol (http or https) if $http is true
	 * This function should not be used to choose http or https domain name.
	 * Use Tools::getShopDomain() or Tools::getShopDomainSsl instead
	 *
	 * @param boolean $http
	 * @param boolean $entities
	 * @return string host
	 */
	public static function getHttpHost($http = false, $entities = false, $ignore_port = false)
	{
		$host = (isset($_SERVER['HTTP_X_FORWARDED_HOST']) ? $_SERVER['HTTP_X_FORWARDED_HOST'] : $_SERVER['HTTP_HOST']);
		if ($ignore_port && $pos = strpos($host, ':'))
			$host = substr($host, 0, $pos);
		if ($entities)
			$host = htmlspecialchars($host, ENT_COMPAT, 'UTF-8');
		if ($http)
			$host = (Configuration::get('PS_SSL_ENABLED') ? 'https://' : 'http://').$host;
		return $host;
	}

	/**
	 * getShopDomain returns domain name according to configuration and ignoring ssl
	 *
	 * @param boolean $http if true, return domain name with protocol
	 * @param boolean $entities if true,
	 * @return string domain
	 */
	public static function getShopDomain($http = false, $entities = false)
	{
		if (!$domain = ShopUrl::getMainShopDomain())
			$domain = Tools::getHttpHost();
		if ($entities)
			$domain = htmlspecialchars($domain, ENT_COMPAT, 'UTF-8');
		if ($http)
			$domain = 'http://'.$domain;
		return $domain;
	}

	/**
	 * getShopDomainSsl returns domain name according to configuration and depending on ssl activation
	 *
	 * @param boolean $http if true, return domain name with protocol
	 * @param boolean $entities if true,
	 * @return string domain
	 */
	public static function getShopDomainSsl($http = false, $entities = false)
	{
		if (!$domain = ShopUrl::getMainShopDomainSSL())
			$domain = Tools::getHttpHost();
		if ($entities)
			$domain = htmlspecialchars($domain, ENT_COMPAT, 'UTF-8');
		if ($http)
			$domain = (Configuration::get('PS_SSL_ENABLED') ? 'https://' : 'http://').$domain;
		return $domain;
	}

	/**
	* Get the server variable SERVER_NAME
	*
	* @return string server name
	*/
	public static function getServerName()
	{
		if (isset($_SERVER['HTTP_X_FORWARDED_SERVER']) && $_SERVER['HTTP_X_FORWARDED_SERVER'])
			return $_SERVER['HTTP_X_FORWARDED_SERVER'];
		return $_SERVER['SERVER_NAME'];
	}

	/**
	* Get the server variable REMOTE_ADDR, or the first ip of HTTP_X_FORWARDED_FOR (when using proxy)
	*
	* @return string $remote_addr ip of client
	*/
	public static function getRemoteAddr()
	{
		// This condition is necessary when using CDN, don't remove it.
		if (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && $_SERVER['HTTP_X_FORWARDED_FOR'] && (!isset($_SERVER['REMOTE_ADDR']) || preg_match('/^127\..*/i', trim($_SERVER['REMOTE_ADDR'])) || preg_match('/^172\.16.*/i', trim($_SERVER['REMOTE_ADDR'])) || preg_match('/^192\.168\.*/i', trim($_SERVER['REMOTE_ADDR'])) || preg_match('/^10\..*/i', trim($_SERVER['REMOTE_ADDR']))))
		{
			if (strpos($_SERVER['HTTP_X_FORWARDED_FOR'], ','))
			{
				$ips = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
				return $ips[0];
			}
			else
				return $_SERVER['HTTP_X_FORWARDED_FOR'];
		}
		return $_SERVER['REMOTE_ADDR'];
	}

	/**
	* Check if the current page use SSL connection on not
	*
	* @return bool uses SSL
	*/
	public static function usingSecureMode()
	{
		if (isset($_SERVER['HTTPS']))
			return ($_SERVER['HTTPS'] == 1 || strtolower($_SERVER['HTTPS']) == 'on');
		// $_SERVER['SSL'] exists only in some specific configuration
		if (isset($_SERVER['SSL']))
			return ($_SERVER['SSL'] == 1 || strtolower($_SERVER['SSL']) == 'on');

		return false;
	}

	/**
	* Get the current url prefix protocol (https/http)
	*
	* @return string protocol
	*/
	public static function getCurrentUrlProtocolPrefix()
	{
		if (Tools::usingSecureMode())
			return 'https://';
		else
			return 'http://';
	}

	/**
	* Secure an URL referrer
	*
	* @param string $referrer URL referrer
	* @return string secured referrer
	*/
	public static function secureReferrer($referrer)
	{
		if (preg_match('/^http[s]?:\/\/'.Tools::getServerName().'(:'._PS_SSL_PORT_.')?\/.*$/Ui', $referrer))
			return $referrer;
		return __PS_BASE_URI__;
	}

	/**
	* Get a value from $_POST / $_GET
	* if unavailable, take a default value
	*
	* @param string $key Value key
	* @param mixed $default_value (optional)
	* @return mixed Value
	*/
	public static function getValue($key, $default_value = false)
	{
		if (!isset($key) || empty($key) || !is_string($key))
			return false;
		$ret = (isset($_POST[$key]) ? $_POST[$key] : (isset($_GET[$key]) ? $_GET[$key] : $default_value));

		if (is_string($ret) === true)
			$ret = urldecode(preg_replace('/((\%5C0+)|(\%00+))/i', '', urlencode($ret)));
		return !is_string($ret)? $ret : stripslashes($ret);
	}

	public static function getIsset($key)
	{
		if (!isset($key) || empty($key) || !is_string($key))
			return false;
		return isset($_POST[$key]) ? true : (isset($_GET[$key]) ? true : false);
	}

	/**
	* Change language in cookie while clicking on a flag
	*
	* @return string iso code
	*/
	public static function setCookieLanguage($cookie = null)
	{
		if (!$cookie)
			$cookie = Context::getContext()->cookie;
		/* If language does not exist or is disabled, erase it */
		if ($cookie->id_lang)
		{
			//echo $cookie->id_lang;exit;
			$lang = new Language((int)$cookie->id_lang);
			if (!Validate::isLoadedObject($lang) || !$lang->active || !$lang->isAssociatedToShop())
				$cookie->id_lang = null;

		}

		/* Automatically detect language if not already defined */
		if (!$cookie->id_lang && isset($_SERVER['HTTP_ACCEPT_LANGUAGE']))
		{
			$array = explode(',', Tools::strtolower($_SERVER['HTTP_ACCEPT_LANGUAGE']));
			if (Tools::strlen($array[0]) > 2)
			{
				$tab = explode('-', $array[0]);
				$string = $tab[0];
			}
			else
				$string = $array[0];
			if (Validate::isLanguageIsoCode($string))
			{
				$lang = new Language(Language::getIdByIso($string));
				if (Validate::isLoadedObject($lang) && $lang->active)
					$cookie->id_lang = (int)$lang->id;
			}
		}

		/* If language file not present, you must use default language file */
		if (!$cookie->id_lang || !Validate::isUnsignedId($cookie->id_lang))
			$cookie->id_lang = (int)Configuration::get('PS_LANG_DEFAULT');

		$iso = Language::getIsoById((int)$cookie->id_lang);
		@include_once(_PS_THEME_DIR_.'lang/'.$iso.'.php');

		return $iso;
	}

	/**
	 * Set cookie id_lang
	 */
	public static function switchLanguage(Context $context = null)
	{
		if (!$context)
			$context = Context::getContext();
		
		// Install call the dispatcher and so the switchLanguage
		// Stop this method by checking the cookie
		if (!isset($context->cookie))
			return;

		if (($iso = Tools::getValue('isolang')) && Validate::isLanguageIsoCode($iso) && ($id_lang = (int)Language::getIdByIso($iso)))
			$_GET['id_lang'] = $id_lang;

		// update language only if new id is different from old id
		// or if default language changed
		$cookie_id_lang = $context->cookie->id_lang;
		$configuration_id_lang = Configuration::get('PS_LANG_DEFAULT');
		if ((($id_lang = (int)Tools::getValue('id_lang')) && Validate::isUnsignedId($id_lang) && $cookie_id_lang != (int)$id_lang)
			|| (($id_lang == $configuration_id_lang) && Validate::isUnsignedId($id_lang) && $id_lang != $cookie_id_lang))
		{
			$context->cookie->id_lang = $id_lang;
			$language = new Language($id_lang);
			if (Validate::isLoadedObject($language))
				$context->language = $language;

			$params = $_GET;
			if (Configuration::get('PS_REWRITING_SETTINGS') || !Language::isMultiLanguageActivated())
				unset($params['id_lang']);
		}
	}

	/**
	 * Set cookie currency from POST or default currency
	 *
	 * @return Currency object
	 */
	public static function setCurrency($cookie)
	{
		if (Tools::isSubmit('SubmitCurrency'))
			if (isset($_POST['id_currency']) && is_numeric($_POST['id_currency']))
			{
				$currency = Currency::getCurrencyInstance($_POST['id_currency']);
				if (is_object($currency) && $currency->id && !$currency->deleted && $currency->isAssociatedToShop())
					$cookie->id_currency = (int)$currency->id;
			}

		if ((int)$cookie->id_currency)
		{
			$currency = Currency::getCurrencyInstance((int)$cookie->id_currency);
			if (is_object($currency) && (int)$currency->id && (int)$currency->deleted != 1 && $currency->active)
				if ($currency->isAssociatedToShop())
					return $currency;
				else
				{
					// get currency from context
					$currency = Shop::getEntityIds('currency', Context::getContext()->shop->id);
					$cookie->id_currency = $currency[0]['id_currency'];
					return Currency::getCurrencyInstance((int)$cookie->id_currency);
				}
		}
		$currency = Currency::getCurrencyInstance(Configuration::get('PS_CURRENCY_DEFAULT'));
		if (is_object($currency) && $currency->id)
			$cookie->id_currency = (int)$currency->id;

		return $currency;
	}

	/**
	* Return price with currency sign for a given product
	*
	* @param float $price Product price
	* @param object $currency Current currency (object, id_currency, NULL => context currency)
	* @return string Price correctly formated (sign, decimal separator...)
	*/
	public static function displayPrice($price, $currency = null, $no_utf8 = false, Context $context = null)
	{
		if (!is_numeric($price))
			return $price;
		if (!$context)
			$context = Context::getContext();
		if ($currency === null)
			$currency = $context->currency;
		// if you modified this function, don't forget to modify the Javascript function formatCurrency (in tools.js)
		elseif (is_int($currency))
			$currency = Currency::getCurrencyInstance((int)$currency);

		if (is_array($currency))
		{
			$c_char = $currency['sign'];
			$c_format = $currency['format'];
			$c_decimals = (int)$currency['decimals'] * _PS_PRICE_DISPLAY_PRECISION_;
			$c_blank = $currency['blank'];
		}
		elseif (is_object($currency))
		{
			$c_char = $currency->sign;
			$c_format = $currency->format;
			$c_decimals = (int)$currency->decimals * _PS_PRICE_DISPLAY_PRECISION_;
			$c_blank = $currency->blank;
		}
		else
			return false;

		$blank = ($c_blank ? ' ' : '');
		$ret = 0;
		if (($is_negative = ($price < 0)))
			$price *= -1;
		$price = Tools::ps_round($price, $c_decimals);
		switch ($c_format)
		{
			/* X 0,000.00 */
			case 1:
				$ret = $c_char.$blank.number_format($price, $c_decimals, '.', ',');
				break;
			/* 0 000,00 X*/
			case 2:
				$ret = number_format($price, $c_decimals, ',', ' ').$blank.$c_char;
				break;
			/* X 0.000,00 */
			case 3:
				$ret = $c_char.$blank.number_format($price, $c_decimals, ',', '.');
				break;
			/* 0,000.00 X */
			case 4:
				$ret = number_format($price, $c_decimals, '.', ',').$blank.$c_char;
				break;
			/* 0 000.00 X  Added for the switzerland currency */
			case 5:
				$ret = number_format($price, $c_decimals, '.', ' ').$blank.$c_char;
				break;
		}
		if ($is_negative)
			$ret = '-'.$ret;
		if ($no_utf8)
			return str_replace('€', chr(128), $ret);
		return $ret;
	}

	public static function displayPriceSmarty($params, &$smarty)
	{
		if (array_key_exists('currency', $params))
		{
			$currency = Currency::getCurrencyInstance((int)($params['currency']));
			if (Validate::isLoadedObject($currency))
				return Tools::displayPrice($params['price'], $currency, false);
		}
		return Tools::displayPrice($params['price']);
	}

	/**
	* Return price converted
	*
	* @param float $price Product price
	* @param object $currency Current currency object
	* @param boolean $to_currency convert to currency or from currency to default currency
	*/
	public static function convertPrice($price, $currency = null, $to_currency = true, Context $context = null)
	{
		static $default_currency = null;

		if ($default_currency === null)
			$default_currency = (int)Configuration::get('PS_CURRENCY_DEFAULT');

		if (!$context)
			$context = Context::getContext();
		if ($currency === null)
			$currency = $context->currency;
		elseif (is_numeric($currency))
			$currency = Currency::getCurrencyInstance($currency);

		$c_id = (is_array($currency) ? $currency['id_currency'] : $currency->id);
		$c_rate = (is_array($currency) ? $currency['conversion_rate'] : $currency->conversion_rate);

		if ($c_id != $default_currency)
		{
			if ($to_currency)
				$price *= $c_rate;
			else
				$price /= $c_rate;
		}

		return $price;
	}

	/**
	 *
	 * Convert amount from a currency to an other currency automatically
	 * @param float $amount
	 * @param Currency $currency_from if null we used the default currency
	 * @param Currency $currency_to if null we used the default currency
	 */
	public static function convertPriceFull($amount, Currency $currency_from = null, Currency $currency_to = null)
	{
		if ($currency_from === $currency_to)
			return $amount;

		if ($currency_from === null)
			$currency_from = new Currency(Configuration::get('PS_CURRENCY_DEFAULT'));

		if ($currency_to === null)
			$currency_to = new Currency(Configuration::get('PS_CURRENCY_DEFAULT'));

		if ($currency_from->id == Configuration::get('PS_CURRENCY_DEFAULT'))
			$amount *= $currency_to->conversion_rate;
		else
		{
            $conversion_rate = ($currency_from->conversion_rate == 0 ? 1 : $currency_from->conversion_rate);
			// Convert amount to default currency (using the old currency rate)
			$amount = Tools::ps_round($amount / $conversion_rate, 2);
			// Convert to new currency
			$amount *= $currency_to->conversion_rate;
		}
		return Tools::ps_round($amount, 2);
	}

	/**
	* Display date regarding to language preferences
	*
	* @param array $params Date, format...
	* @param object $smarty Smarty object for language preferences
	* @return string Date
	*/
	public static function dateFormat($params, &$smarty)
	{
		return Tools::displayDate($params['date'], Context::getContext()->language->id, (isset($params['full']) ? $params['full'] : false));
	}

	/**
	* Display date regarding to language preferences
	*
	* @param string $date Date to display format UNIX
	* @param integer $id_lang Language id
	* @param boolean $full With time or not (optional)
	* @param string $separator DEPRECATED
	* @return string Date
	*/
	public static function displayDate($date, $id_lang, $full = false, $separator = '-')
	{
		if (!$date || !($time = strtotime($date)))
			return $date;

		if ($date == '0000-00-00 00:00:00' || $date == '0000-00-00')
			return '';

		if (!Validate::isDate($date) || !Validate::isBool($full))
			throw new PrestaShopException('Invalid date');

		$context = Context::getContext();
		$date_format = ($full ? $context->language->date_format_full : $context->language->date_format_lite);
		return date($date_format, $time);
	}

	/**
	* Sanitize a string
	*
	* @param string $string String to sanitize
	* @param boolean $full String contains HTML or not (optional)
	* @return string Sanitized string
	*/
	public static function safeOutput($string, $html = false)
	{
		if (!$html)
			$string = strip_tags($string);
		return @Tools::htmlentitiesUTF8($string, ENT_QUOTES);
	}

	public static function htmlentitiesUTF8($string, $type = ENT_QUOTES)
	{
		if (is_array($string))

			return array_map(array('Tools', 'htmlentitiesUTF8'), $string);
		return htmlentities($string, $type, 'utf-8');
	}

	public static function htmlentitiesDecodeUTF8($string)
	{
		if (is_array($string))
			return array_map(array('Tools', 'htmlentitiesDecodeUTF8'), $string);
		return html_entity_decode($string, ENT_QUOTES, 'utf-8');
	}

	public static function safePostVars()
	{
		if (!is_array($_POST))
			return array();
		$_POST = array_map(array('Tools', 'htmlentitiesUTF8'), $_POST);
	}

	/**
	* Delete directory and subdirectories
	*
	* @param string $dirname Directory name
	*/
	public static function deleteDirectory($dirname, $delete_self = true)
	{
		$dirname = rtrim($dirname, '/').'/';
		$files = scandir($dirname);
		if (is_dir($dirname))
		{
			foreach ($files as $file)
			if ($file != '.' && $file != '..' && $file != '.svn')
			{
				if (is_dir($dirname.$file))
					Tools::deleteDirectory($dirname.$file, true);
				elseif (file_exists($dirname.$file))
					unlink($dirname.$file);
			}
			if ($delete_self)
				rmdir($dirname);
		}
	}

	/**
	* Display an error according to an error code
	*
	* @param string $string Error message
	* @param boolean $htmlentities By default at true for parsing error message with htmlentities
	*/
	public static function displayError($string = 'Fatal error', $htmlentities = true, Context $context = null)
	{
		global $_ERRORS;

		if (is_null($context))
			$context = Context::getContext();

		@include_once(_PS_TRANSLATIONS_DIR_.$context->language->iso_code.'/errors.php');

		if (defined('_PS_MODE_DEV_') && _PS_MODE_DEV_ && $string == 'Fatal error')
			return ('<pre>'.print_r(debug_backtrace(), true).'</pre>');
		if (!is_array($_ERRORS))
			return str_replace('"', '&quot;', $string);
		$key = md5(str_replace('\'', '\\\'', $string));
		$str = (isset($_ERRORS) && is_array($_ERRORS) && array_key_exists($key, $_ERRORS)) ? ($htmlentities ? htmlentities($_ERRORS[$key], ENT_COMPAT, 'UTF-8') : $_ERRORS[$key]) : $string;
		return str_replace('"', '&quot;', stripslashes($str));
	}

	/**
	 * Display an error with detailed object
	 *
	 * @param mixed $object
	 * @param boolean $kill
	 * @return $object if $kill = false;
	 */
	public static function dieObject($object, $kill = true)
	{
		echo '<xmp style="text-align: left;">';
		print_r($object);
		echo '</xmp><br />';
		if ($kill)
			die('END');
		return $object;
	}

	/**
	* Display a var dump in firebug console
	*
	* @param object $object Object to display
	*/
	public static function fd($object)
	{
		echo '
			<script type="text/javascript">
				console.log('.json_encode($object).');
			</script>
		';
	}

	/**
	* ALIAS OF dieObject() - Display an error with detailed object
	*
	* @param object $object Object to display
	*/
	public static function d($object, $kill = true)
	{
		return (Tools::dieObject($object, $kill));
	}

	/**
	* ALIAS OF dieObject() - Display an error with detailed object but don't stop the execution
	*
	* @param object $object Object to display
	*/
	public static function p($object)
	{
		return (Tools::dieObject($object, false));
	}

	/**
	* Check if submit has been posted
	*
	* @param string $submit submit name
	*/
	public static function isSubmit($submit)
	{
		return (
			isset($_POST[$submit]) || isset($_POST[$submit.'_x']) || isset($_POST[$submit.'_y'])
			|| isset($_GET[$submit]) || isset($_GET[$submit.'_x']) || isset($_GET[$submit.'_y'])
		);
	}

	/**
	 * @deprecated 1.5.0
	 */
	public static function getMetaTags($id_lang, $page_name, $title = '')
	{
		Tools::displayAsDeprecated();
		return Meta::getMetaTags($id_lang, $page_name, $title);
	}

	/**
	 * @deprecated 1.5.0
	 */
	public static function getHomeMetaTags($id_lang, $page_name)
	{
		Tools::displayAsDeprecated();
		return Meta::getHomeMetas($id_lang, $page_name);
	}

	/**
	 * @deprecated 1.5.0
	 */
	public static function completeMetaTags($meta_tags, $default_value, Context $context = null)
	{
		Tools::displayAsDeprecated();
		return Meta::completeMetaTags($meta_tags, $default_value, $context);
	}

	/**
	* Encrypt password
	*
	* @param string $passwd String to encrypt
	*/
	public static function encrypt($passwd)
	{
		return md5(_COOKIE_KEY_.$passwd);
	}

	/**
	* Get token to prevent CSRF
	*
	* @param string $token token to encrypt
	*/
	public static function getToken($page = true, Context $context = null)
	{
		if (!$context)
			$context = Context::getContext();
		if ($page === true)
			return (Tools::encrypt($context->customer->id.$context->customer->passwd.$_SERVER['SCRIPT_NAME']));
		else
			return (Tools::encrypt($context->customer->id.$context->customer->passwd.$page));
	}

	/**
	* Tokenize a string
	*
	* @param string $string string to encript
	*/
	public static function getAdminToken($string)
	{
		return !empty($string) ? Tools::encrypt($string) : false;
	}

	public static function getAdminTokenLite($tab, Context $context = null)
	{
		if (!$context)
			$context = Context::getContext();
		return Tools::getAdminToken($tab.(int)Tab::getIdFromClassName($tab).(int)$context->employee->id);
	}

	public static function getAdminTokenLiteSmarty($params, &$smarty)
	{
		$context = Context::getContext();
		return Tools::getAdminToken($params['tab'].(int)Tab::getIdFromClassName($params['tab']).(int)$context->employee->id);
	}

	/**
	* Get the user's journey
	*
	* @param integer $id_category Category ID
	* @param string $path Path end
	* @param boolean $linkOntheLastItem Put or not a link on the current category
	* @param string [optionnal] $categoryType defined what type of categories is used (products or cms)
	*/
	public static function getPath($id_category, $path = '', $link_on_the_item = false, $category_type = 'products', Context $context = null)
	{
		if (!$context)
			$context = Context::getContext();

		$id_category = (int)$id_category;
		if ($id_category == 1)
			return '<span class="navigation_end">'.$path.'</span>';

		$pipe = Configuration::get('PS_NAVIGATION_PIPE');
		if (empty($pipe))
			$pipe = '>';

		$full_path = '';
		if ($category_type === 'products')
		{
			$interval = Category::getInterval($id_category);
			$id_root_category = $context->shop->getCategory();
			$interval_root = Category::getInterval($id_root_category);
			if ($interval)
			{
				$sql = 'SELECT c.id_category, cl.name, cl.link_rewrite
						FROM '._DB_PREFIX_.'category c
						LEFT JOIN '._DB_PREFIX_.'category_lang cl ON (cl.id_category = c.id_category'.Shop::addSqlRestrictionOnLang('cl').')
						WHERE c.nleft <= '.$interval['nleft'].'
							AND c.nright >= '.$interval['nright'].'
							AND c.nleft >= '.$interval_root['nleft'].'
							AND c.nright <= '.$interval_root['nright'].'
							AND cl.id_lang = '.(int)$context->language->id.'
							AND c.active = 1
							AND c.level_depth > '.(int)$interval_root['level_depth'].'
						ORDER BY c.level_depth ASC';
				$categories = Db::getInstance()->executeS($sql);

				$n = 1;
				$n_categories = count($categories);
				foreach ($categories as $category)
				{
					$full_path .=
					(($n < $n_categories || $link_on_the_item) ? '<a href="'.Tools::safeOutput($context->link->getCategoryLink((int)$category['id_category'], $category['link_rewrite'])).'" title="'.htmlentities($category['name'], ENT_NOQUOTES, 'UTF-8').'">' : '').
					htmlentities($category['name'], ENT_NOQUOTES, 'UTF-8').
					(($n < $n_categories || $link_on_the_item) ? '</a>' : '').
					(($n++ != $n_categories || !empty($path)) ? '<span class="navigation-pipe">'.$pipe.'</span>' : '');
				}

				return $full_path.$path;
			}
		}
		else if ($category_type === 'CMS')
		{
			$category = new CMSCategory($id_category, $context->language->id);
			if (!Validate::isLoadedObject($category))
				die(Tools::displayError());
			$category_link = $context->link->getCMSCategoryLink($category);

			if ($path != $category->name)
				$full_path .= '<a href="'.Tools::safeOutput($category_link).'">'.htmlentities($category->name, ENT_NOQUOTES, 'UTF-8').'</a><span class="navigation-pipe">'.$pipe.'</span>'.$path;
			else
				$full_path = ($link_on_the_item ? '<a href="'.Tools::safeOutput($category_link).'">' : '').htmlentities($path, ENT_NOQUOTES, 'UTF-8').($link_on_the_item ? '</a>' : '');

			return Tools::getPath($category->id_parent, $full_path, $link_on_the_item, $category_type);
		}
	}

	/**
	* @param string [optionnal] $type_cat defined what type of categories is used (products or cms)
	*/
	public static function getFullPath($id_category, $end, $type_cat = 'products', Context $context = null)
	{
		if (!$context)
			$context = Context::getContext();

		$id_category = (int)$id_category;
		$pipe = (Configuration::get('PS_NAVIGATION_PIPE') ? Configuration::get('PS_NAVIGATION_PIPE') : '>');

		$default_category = 1;
		if ($type_cat === 'products')
		{
			$default_category = $context->shop->getCategory();
			$category = new Category($id_category, $context->language->id);
		}
		else if ($type_cat === 'CMS')
		    $category = new CMSCategory($id_category, $context->language->id);

		if (!Validate::isLoadedObject($category))
			$id_category = $default_category;
		if ($id_category == $default_category)
			return htmlentities($end, ENT_NOQUOTES, 'UTF-8');

		return Tools::getPath($id_category, $category->name, true, $type_cat).'<span class="navigation-pipe">'.$pipe.'</span> <span class="navigation_product">'.htmlentities($end, ENT_NOQUOTES, 'UTF-8').'</span>';
	}

	/**
	 * Return the friendly url from the provided string
	 *
	 * @param string $str
	 * @param bool $utf8_decode => needs to be marked as deprecated
	 * @return string
	 */
	public static function link_rewrite($str, $utf8_decode = false)
	{
		return Tools::str2url($str);
	}

	/**
	 * Return a friendly url made from the provided string
	 * If the mbstring library is available, the output is the same as the js function of the same name
	 *
	 * @param string $str
	 * @return string
	 */
	public static function str2url($str)
	{
		if (function_exists('mb_strtolower'))
			$str = mb_strtolower($str, 'utf-8');

		$str = trim($str);
		if (!function_exists('mb_strtolower'))
			$str = Tools::replaceAccentedChars($str);

		// Remove all non-whitelist chars.
		$str = preg_replace('/[^a-zA-Z0-9\s\'\:\/\[\]-\pL]/u', '', $str);
		$str = preg_replace('/[\s\'\:\/\[\]-]+/', ' ', $str);
		$str = str_replace(array(' ', '/'), '-', $str);

		// If it was not possible to lowercase the string with mb_strtolower, we do it after the transformations.
		// This way we lose fewer special chars.
		if (!function_exists('mb_strtolower'))
			$str = strtolower($str);

		return $str;
	}

	/**
	 * Replace all accented chars by their equivalent non accented chars.
	 *
	 * @param string $str
	 * @return string
	 */
	public static function replaceAccentedChars($str)
	{
		$patterns = array(
			/* Lowercase */
			'/[\x{0105}\x{00E0}\x{00E1}\x{00E2}\x{00E3}\x{00E4}\x{00E5}]/u',
			'/[\x{00E7}\x{010D}\x{0107}]/u',
			'/[\x{010F}]/u',
			'/[\x{00E8}\x{00E9}\x{00EA}\x{00EB}\x{011B}\x{0119}]/u',
			'/[\x{00EC}\x{00ED}\x{00EE}\x{00EF}]/u',
			'/[\x{0142}\x{013E}\x{013A}]/u',
			'/[\x{00F1}\x{0148}]/u',
			'/[\x{00F2}\x{00F3}\x{00F4}\x{00F5}\x{00F6}\x{00F8}]/u',
			'/[\x{0159}\x{0155}]/u',
			'/[\x{015B}\x{0161}]/u',
			'/[\x{00DF}]/u',
			'/[\x{0165}]/u',
			'/[\x{00F9}\x{00FA}\x{00FB}\x{00FC}\x{016F}]/u',
			'/[\x{00FD}\x{00FF}]/u',
			'/[\x{017C}\x{017A}\x{017E}]/u',
			'/[\x{00E6}]/u',
			'/[\x{0153}]/u',

			/* Uppercase */
			'/[\x{0104}\x{00C0}\x{00C1}\x{00C2}\x{00C3}\x{00C4}\x{00C5}]/u',
			'/[\x{00C7}\x{010C}\x{0106}]/u',
			'/[\x{010E}]/u',
			'/[\x{00C8}\x{00C9}\x{00CA}\x{00CB}\x{011A}\x{0118}]/u',
			'/[\x{0141}\x{013D}\x{0139}]/u',
			'/[\x{00D1}\x{0147}]/u',
			'/[\x{00D3}]/u',
			'/[\x{0158}\x{0154}]/u',
			'/[\x{015A}\x{0160}]/u',
			'/[\x{0164}]/u',
			'/[\x{00D9}\x{00DA}\x{00DB}\x{00DC}\x{016E}]/u',
			'/[\x{017B}\x{0179}\x{017D}]/u',
			'/[\x{00C6}]/u',
			'/[\x{0152}]/u');

		$replacements = array(
				'a', 'c', 'd', 'e', 'i', 'l', 'n', 'o', 'r', 's', 'ss', 't', 'u', 'y', 'z', 'ae', 'oe',
				'A', 'C', 'D', 'E', 'L', 'N', 'O', 'R', 'S', 'T', 'U', 'Z', 'AE', 'OE'
			);

		return preg_replace($patterns, $replacements, $str);
	}

	/**
	* Truncate strings
	*
	* @param string $str
	* @param integer $max_length Max length
	* @param string $suffix Suffix optional
	* @return string $str truncated
	*/
	/* CAUTION : Use it only on module hookEvents.
	** For other purposes use the smarty function instead */
	public static function truncate($str, $max_length, $suffix = '...')
	{
	 	if (Tools::strlen($str) <= $max_length)
	 		return $str;
	 	$str = utf8_decode($str);
	 	return (utf8_encode(substr($str, 0, $max_length - Tools::strlen($suffix)).$suffix));
	}

	/**
	* Generate date form
	*
	* @param integer $year Year to select
	* @param integer $month Month to select
	* @param integer $day Day to select
	* @return array $tab html data with 3 cells :['days'], ['months'], ['years']
	*
	*/
	public static function dateYears()
	{
		$tab = array();
		for ($i = date('Y'); $i >= 1900; $i--)
			$tab[] = $i;
		return $tab;
	}

	public static function dateDays()
	{
		$tab = array();
		for ($i = 1; $i != 32; $i++)
			$tab[] = $i;
		return $tab;
	}

	public static function dateMonths()
	{
		$tab = array();
		for ($i = 1; $i != 13; $i++)
			$tab[$i] = date('F', mktime(0, 0, 0, $i, date('m'), date('Y')));
		return $tab;
	}

	public static function hourGenerate($hours, $minutes, $seconds)
	{
	    return implode(':', array($hours, $minutes, $seconds));
	}

	public static function dateFrom($date)
	{
		$tab = explode(' ', $date);
		if (!isset($tab[1]))
		    $date .= ' '.Tools::hourGenerate(0, 0, 0);
		return $date;
	}

	public static function dateTo($date)
	{
		$tab = explode(' ', $date);
		if (!isset($tab[1]))
		    $date .= ' '.Tools::hourGenerate(23, 59, 59);
		return $date;
	}

	public static function strtolower($str)
	{
		if (is_array($str))
			return false;
		if (function_exists('mb_strtolower'))
			return mb_strtolower($str, 'utf-8');
		return strtolower($str);
	}

	public static function strlen($str, $encoding = 'UTF-8')
	{
		if (is_array($str))
			return false;
		$str = html_entity_decode($str, ENT_COMPAT, 'UTF-8');
		if (function_exists('mb_strlen'))
			return mb_strlen($str, $encoding);
		return strlen($str);
	}

	public static function stripslashes($string)
	{
		if (_PS_MAGIC_QUOTES_GPC_)
			$string = stripslashes($string);
		return $string;
	}

	public static function strtoupper($str)
	{
		if (is_array($str))
			return false;
		if (function_exists('mb_strtoupper'))
			return mb_strtoupper($str, 'utf-8');
		return strtoupper($str);
	}

	public static function substr($str, $start, $length = false, $encoding = 'utf-8')
	{
		if (is_array($str))
			return false;
		if (function_exists('mb_substr'))
			return mb_substr($str, (int)$start, ($length === false ? Tools::strlen($str) : (int)$length), $encoding);
		return substr($str, $start, ($length === false ? Tools::strlen($str) : (int)$length));
	}

	public static function ucfirst($str)
	{
		return Tools::strtoupper(Tools::substr($str, 0, 1)).Tools::substr($str, 1);
	}

	public static function orderbyPrice(&$array, $order_way)
	{
		foreach ($array as &$row)
			$row['price_tmp'] = Product::getPriceStatic($row['id_product'], true, ((isset($row['id_product_attribute']) && !empty($row['id_product_attribute'])) ? (int)$row['id_product_attribute'] : null), 2);
		if (strtolower($order_way) == 'desc')
			uasort($array, 'cmpPriceDesc');
		else
			uasort($array, 'cmpPriceAsc');
		foreach ($array as &$row)
			unset($row['price_tmp']);
	}

	public static function iconv($from, $to, $string)
	{
		if (function_exists('iconv'))
			return iconv($from, $to.'//TRANSLIT', str_replace('¥', '&yen;', str_replace('£', '&pound;', str_replace('€', '&euro;', $string))));
		return html_entity_decode(htmlentities($string, ENT_NOQUOTES, $from), ENT_NOQUOTES, $to);
	}

	public static function isEmpty($field)
	{
		return ($field === '' || $field === null);
	}

	/**
	 * returns the rounded value of $value to specified precision, according to your configuration;
	 *
	 * @note : PHP 5.3.0 introduce a 3rd parameter mode in round function
	 *
	 * @param float $value
	 * @param int $precision
	 * @return float
	 */
	public static function ps_round($value, $precision = 0)
	{
		static $method = null;

		if ($method == null)
			$method = (int)Configuration::get('PS_PRICE_ROUND_MODE');

		if ($method == PS_ROUND_UP)
			return Tools::ceilf($value, $precision);
		elseif ($method == PS_ROUND_DOWN)
			return Tools::floorf($value, $precision);
		return round($value, $precision);
	}

	/**
	 * returns the rounded value down of $value to specified precision
	 *
	 * @param float $value
	 * @param int $precision
	 * @return float
	 */
	public static function ceilf($value, $precision = 0)
	{
		$precision_factor = $precision == 0 ? 1 : pow(10, $precision);
		$tmp = $value * $precision_factor;
		$tmp2 = (string)$tmp;
		// If the current value has already the desired precision
		if (strpos($tmp2, '.') === false)
			return ($value);
		if ($tmp2[strlen($tmp2) - 1] == 0)
			return $value;
		return ceil($tmp) / $precision_factor;
	}

	/**
	 * returns the rounded value up of $value to specified precision
	 *
	 * @param float $value
	 * @param int $precision
	 * @return float
	 */
	public static function floorf($value, $precision = 0)
	{
		$precision_factor = $precision == 0 ? 1 : pow(10, $precision);
		$tmp = $value * $precision_factor;
		$tmp2 = (string)$tmp;
		// If the current value has already the desired precision
		if (strpos($tmp2, '.') === false)
			return ($value);
		if ($tmp2[strlen($tmp2) - 1] == 0)
			return $value;
		return floor($tmp) / $precision_factor;
	}

	/**
	 * file_exists() wrapper with cache to speedup performance
	 *
	 * @param string $filename File name
	 * @return boolean Cached result of file_exists($filename)
	 */
	public static function file_exists_cache($filename)
	{
		if (!isset(self::$file_exists_cache[$filename]))
			self::$file_exists_cache[$filename] = file_exists($filename);
		return self::$file_exists_cache[$filename];
	}

	public static function file_get_contents($url, $use_include_path = false, $stream_context = null, $curl_timeout = 5)
	{
		if ($stream_context == null)
			$stream_context = @stream_context_create(array('http' => array('timeout' => 5)));

		if (in_array(ini_get('allow_url_fopen'), array('On', 'on', '1')))
			return @file_get_contents($url, $use_include_path, $stream_context);
		elseif (function_exists('curl_init'))
		{
			$curl = curl_init();
			curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
			curl_setopt($curl, CURLOPT_URL, $url);
			curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, $curl_timeout);
			curl_setopt($curl, CURLOPT_TIMEOUT, $curl_timeout);
			$content = curl_exec($curl);
			curl_close($curl);
			return $content;
		}
		else
			return false;
	}

	public static function simplexml_load_file($url, $class_name = null)
	{
		if (in_array(ini_get('allow_url_fopen'), array('On', 'on', '1')))
			return @simplexml_load_string(Tools::file_get_contents($url), $class_name);
		else
			return false;
	}


	public static $a = 0;

	/**
	 * @deprecated as of 1.5 use Media::minifyHTML()
	 */
	public static function minifyHTML($html_content)
	{
		Tools::displayAsDeprecated();
		return Media::minifyHTML($html_content);
	}

	/**
	* Translates a string with underscores into camel case (e.g. first_name -> firstName)
	* @prototype string public static function toCamelCase(string $str[, bool $catapitalise_first_char = false])
	*/
	public static function toCamelCase($str, $catapitalise_first_char = false)
	{
		$str = strtolower($str);
		if ($catapitalise_first_char)
			$str = ucfirst($str);
		return preg_replace_callback('/_+([a-z])/', create_function('$c', 'return strtoupper($c[1]);'), $str);
	}

	/**
	 * Transform a CamelCase string to underscore_case string
	 *
	 * @param string $string
	 * @return string
	 */
	public static function toUnderscoreCase($string)
	{
		// 'CMSCategories' => 'cms_categories'
		// 'RangePrice' => 'range_price'
		return strtolower(trim(preg_replace('/([A-Z][a-z])/', '_$1', $string), '_'));
	}

	public static function getBrightness($hex)
	{
		$hex = str_replace('#', '', $hex);
		$r = hexdec(substr($hex, 0, 2));
		$g = hexdec(substr($hex, 2, 2));
		$b = hexdec(substr($hex, 4, 2));
		return (($r * 299) + ($g * 587) + ($b * 114)) / 1000;
	}

	/**
	* @deprecated as of 1.5 use Media::minifyHTMLpregCallback()
	*/
	public static function minifyHTMLpregCallback($preg_matches)
	{
		Tools::displayAsDeprecated();
		return Media::minifyHTMLpregCallback($preg_matches);
	}

	/**
	* @deprecated as of 1.5 use Media::packJSinHTML()
	*/
	public static function packJSinHTML($html_content)
	{
		Tools::displayAsDeprecated();
		return Media::packJSinHTML($html_content);
	}

	/**
	* @deprecated as of 1.5 use Media::packJSinHTMLpregCallback()
	*/
	public static function packJSinHTMLpregCallback($preg_matches)
	{
		Tools::displayAsDeprecated();
		return Media::packJSinHTMLpregCallback($preg_matches);
	}

	/**
	* @deprecated as of 1.5 use Media::packJS()
	*/
	public static function packJS($js_content)
	{
		Tools::displayAsDeprecated();
		return Media::packJS($js_content);
	}


	public static function parserSQL($sql)
	{
		if (strlen($sql) > 0)
		{
			require_once(_PS_TOOL_DIR_.'parser_sql/php-sql-parser.php');
			$parser = new parserSql($sql);
			return $parser->parsed;
		}
		return false;
	}

	/**
	 * @deprecated as of 1.5 use Media::minifyCSS()
	 */
	public static function minifyCSS($css_content, $fileuri = false)
	{
		Tools::displayAsDeprecated();
		return Media::minifyCSS($css_content, $fileuri);
	}

	public static function replaceByAbsoluteURL($matches)
	{
		global $current_css_file;

		$protocol_link = Tools::getCurrentUrlProtocolPrefix();

		if (array_key_exists(1, $matches))
		{
			$tmp = dirname($current_css_file).'/'.$matches[1];
			return 'url(\''.$protocol_link.Tools::getMediaServer($tmp).$tmp.'\')';
		}
		return false;
	}

	/**
	 * addJS load a javascript file in the header
	 *
	 * @deprecated as of 1.5 use FrontController->addJS()
	 * @param mixed $js_uri
	 * @return void
	 */
	public static function addJS($js_uri)
	{
		Tools::displayAsDeprecated();
		$context = Context::getContext();
		$context->controller->addJs($js_uri);
	}

	/**
	 * @deprecated as of 1.5 use FrontController->addCSS()
	 */
	public static function addCSS($css_uri, $css_media_type = 'all')
	{
		Tools::displayAsDeprecated();
		$context = Context::getContext();
		$context->controller->addCSS($css_uri, $css_media_type);
	}

	/**
	* @deprecated as of 1.5 use Media::cccCss()
	*/
	public static function cccCss($css_files)
	{
		Tools::displayAsDeprecated();
		return Media::cccCss($css_files);
	}


	/**
	* @deprecated as of 1.5 use Media::cccJS()
	*/
	public static function cccJS($js_files)
	{
		Tools::displayAsDeprecated();
		return Media::cccJS($js_files);
	}

	protected static $_cache_nb_media_servers = null;

	public static function getMediaServer($filename)
	{
		if (self::$_cache_nb_media_servers === null)
		{
			if (_MEDIA_SERVER_1_ == '')
				self::$_cache_nb_media_servers = 0;
			elseif (_MEDIA_SERVER_2_ == '')
				self::$_cache_nb_media_servers = 1;
			elseif (_MEDIA_SERVER_3_ == '')
				self::$_cache_nb_media_servers = 2;
			else
				self::$_cache_nb_media_servers = 3;
		}

		if (self::$_cache_nb_media_servers && ($id_media_server = (abs(crc32($filename)) % self::$_cache_nb_media_servers + 1)))
			return constant('_MEDIA_SERVER_'.$id_media_server.'_');
		return Tools::getHttpHost();
	}

	public static function generateHtaccess($path = null, $rewrite_settings = null, $cache_control = null, $specific = '', $disable_multiviews = null, $medias = false)
	{
		if (defined('PS_INSTALLATION_IN_PROGRESS'))
			return true;

		// Default values for parameters
		if (is_null($path))
			$path = _PS_ROOT_DIR_.'/.htaccess';
		if (is_null($cache_control))
			$cache_control = (int)Configuration::get('PS_HTACCESS_CACHE_CONTROL');
		if (is_null($disable_multiviews))
			$disable_multiviews = (int)Configuration::get('PS_HTACCESS_DISABLE_MULTIVIEWS');

		// Check current content of .htaccess and save all code outside of prestashop comments
		$specific_before = $specific_after = '';
		if (file_exists($path))
		{
			$content = file_get_contents($path);
			if (preg_match('#^(.*)\# ~~start~~.*\# ~~end~~[^\n]*(.*)$#s', $content, $m))
			{
				$specific_before = $m[1];
				$specific_after = $m[2];
			}
			else
			{
				// For retrocompatibility
				if (preg_match('#\# http://www\.prestashop\.com - http://www\.prestashop\.com/forums\s*(.*)<IfModule mod_rewrite\.c>#si', $content, $m))
					$specific_before = $m[1];
				else
					$specific_before = $content;
			}
		}

		// Write .htaccess data
		if (!$write_fd = @fopen($path, 'w'))
			return false;
		fwrite($write_fd, trim($specific_before)."\n\n");

		$domains = array();
		foreach (ShopUrl::getShopUrls() as $shop_url)
		{
			if (!isset($domains[$shop_url->domain]))
				$domains[$shop_url->domain] = array();

			$domains[$shop_url->domain][] = array(
				'physical' =>	$shop_url->physical_uri,
				'virtual' =>	$shop_url->virtual_uri,
				'id_shop' =>	$shop_url->id_shop
			);
		}

		// Write data in .htaccess file
		fwrite($write_fd, "# ~~start~~ Do not remove this comment, Prestashop will keep automatically the code outside this comment when .htaccess will be generated again\n");
		fwrite($write_fd, "# .htaccess automaticaly generated by PrestaShop e-commerce open-source solution\n");
		fwrite($write_fd, "# http://www.prestashop.com - http://www.prestashop.com/forums\n\n");

		// RewriteEngine
		fwrite($write_fd, "<IfModule mod_rewrite.c>\n");

		// Disable multiviews ?
		if ($disable_multiviews)
			fwrite($write_fd, "\n# Disable Multiviews\nOptions -Multiviews\n\n");

		fwrite($write_fd, "RewriteEngine on\n");
	
		if (!$medias)
			$medias = array(_MEDIA_SERVER_1_, _MEDIA_SERVER_2_, _MEDIA_SERVER_3_);
		
		$media_domains = '';
		if ($medias[0] != '')
			$media_domains = 'RewriteCond %{HTTP_HOST} ^'.$medias[0].'$ [OR]'."\n";
		if ($medias[1] != '')
			$media_domains .= 'RewriteCond %{HTTP_HOST} ^'.$medias[1].'$ [OR]'."\n";
		if ($medias[2] != '')
			$media_domains .= 'RewriteCond %{HTTP_HOST} ^'.$medias[2].'$ [OR]'."\n";

		if (Configuration::get('PS_WEBSERVICE_CGI_HOST'))
			fwrite($write_fd, "RewriteCond %{HTTP:Authorization} ^(.*)\nRewriteRule . - [E=HTTP_AUTHORIZATION:%1]\n\n");

		foreach ($domains as $domain => $list_uri)
		{
			$physicals = array();
			foreach ($list_uri as $uri)
			{
				fwrite($write_fd, 'RewriteCond %{HTTP_HOST} ^'.$domain.'$'."\n");
				fwrite($write_fd, 'RewriteRule . - [E=REWRITEBASE:'.$uri['physical'].']'."\n");
				
				// Webservice
				fwrite($write_fd, 'RewriteRule ^api/?(.*)$ %{ENV:REWRITEBASE}webservice/dispatcher.php?url=$1 [QSA,L]'."\n\n");
				
				$rewrite_settings = (int)Configuration::get('PS_REWRITING_SETTINGS', null, null, (int)$uri['id_shop']);
				$domain_rewrite_cond = 'RewriteCond %{HTTP_HOST} ^'.$domain.'$'."\n";
				// Rewrite virtual multishop uri
				if ($uri['virtual'])
				{
					if (!$rewrite_settings)
					{
						fwrite($write_fd, $media_domains);
						fwrite($write_fd, $domain_rewrite_cond);
						fwrite($write_fd, 'RewriteRule ^'.trim($uri['virtual'], '/').'/?$ '.$uri['physical'].$uri['virtual']."index.php [L,R]\n");
					}
					else
					{
						fwrite($write_fd, $media_domains);
						fwrite($write_fd, $domain_rewrite_cond);
						fwrite($write_fd, 'RewriteRule ^'.trim($uri['virtual'], '/').'$ '.$uri['physical'].$uri['virtual']." [L,R]\n");
					}
					fwrite($write_fd, $media_domains);
					fwrite($write_fd, $domain_rewrite_cond);
					fwrite($write_fd, 'RewriteRule ^'.ltrim($uri['virtual'], '/').'(.*) '.$uri['physical']."$1 [L]\n\n");
				}

				if ($rewrite_settings)
				{
					// Compatibility with the old image filesystem
					fwrite($write_fd, "# Images\n");
					if (Configuration::get('PS_LEGACY_IMAGES'))
					{
						fwrite($write_fd, $media_domains);
						fwrite($write_fd, $domain_rewrite_cond);
						fwrite($write_fd, 'RewriteRule ^([a-z0-9]+)\-([a-z0-9]+)(\-[_a-zA-Z0-9-]*)(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}'._PS_PROD_IMG_.'$1-$2$3$4.jpg [L]'."\n");
						fwrite($write_fd, $media_domains);
						fwrite($write_fd, $domain_rewrite_cond);
						fwrite($write_fd, 'RewriteRule ^([0-9]+)\-([0-9]+)(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}'._PS_PROD_IMG_.'$1-$2$3.jpg [L]'."\n");
					}

					// Rewrite product images < 100 millions
					for ($i = 1; $i <= 8; $i++)
					{
						$img_path = $img_name = '';
						for ($j = 1; $j <= $i; $j++)
						{
							$img_path .= '$'.$j.'/';
							$img_name .= '$'.$j;
						}
						$img_name .= '$'.$j;
							fwrite($write_fd, $media_domains);
						fwrite($write_fd, $domain_rewrite_cond);
						fwrite($write_fd, 'RewriteRule ^'.str_repeat('([0-9])', $i).'(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}'._PS_PROD_IMG_.$img_path.$img_name.'$'.($j + 1).".jpg [L]\n");
					}
					fwrite($write_fd, $media_domains);
					fwrite($write_fd, $domain_rewrite_cond);
					fwrite($write_fd, 'RewriteRule ^c/([0-9]+)(\-[\.*_a-zA-Z0-9-]*)(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/c/$1$2$3.jpg [L]'."\n");
					fwrite($write_fd, $media_domains);
					fwrite($write_fd, $domain_rewrite_cond);
					fwrite($write_fd, 'RewriteRule ^c/([a-zA-Z-]+)(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/c/$1$2.jpg [L]'."\n");
				}
			}
			// Redirections to dispatcher
			if ($rewrite_settings)
			{
				fwrite($write_fd, "\n# Dispatcher\n");
				fwrite($write_fd, "RewriteCond %{REQUEST_FILENAME} -s [OR]\n");
				fwrite($write_fd, "RewriteCond %{REQUEST_FILENAME} -l [OR]\n");
				fwrite($write_fd, "RewriteCond %{REQUEST_FILENAME} -d\n");
				fwrite($write_fd, $domain_rewrite_cond);
				fwrite($write_fd, "RewriteRule ^.*$ - [NC,L]\n");
				fwrite($write_fd, $domain_rewrite_cond);
				fwrite($write_fd, "RewriteRule ^.*\$ %{ENV:REWRITEBASE}index.php [NC,L]\n");
			}
		}

		fwrite($write_fd, "</IfModule>\n\n");

		// Cache control
		if ($cache_control)
		{
			$cache_control = "<IfModule mod_expires.c>
	ExpiresActive On
	ExpiresByType image/gif \"access plus 1 month\"
	ExpiresByType image/jpeg \"access plus 1 month\"
	ExpiresByType image/png \"access plus 1 month\"
	ExpiresByType text/…