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Current File : //hermes/bosweb01/sb_web/b2920/www.jiu-jitsu-world.com/classes/Validate.php
<?php
/*
* 2007-2014 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  2007-2014 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

class ValidateCore
{
	const ADMIN_PASSWORD_LENGTH = 8;
	const PASSWORD_LENGTH = 5;

	public static function isIp2Long($ip)
	{
		return preg_match('#^-?[0-9]+$#', (string)$ip);
	}

	public static function isAnything()
	{
		return true;
	}

 	/**
	 * Check for e-mail validity
	 *
	 * @param string $email e-mail address to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isEmail($email)
	{
		return !empty($email) && preg_match(Tools::cleanNonUnicodeSupport('/^[a-z\p{L}0-9!#$%&\'*+\/=?^`{}|~_-]+[.a-z\p{L}0-9!#$%&\'*+\/=?^`{}|~_-]*@[a-z\p{L}0-9]+[._a-z\p{L}0-9-]*\.[a-z\p{L}0-9]+$/ui'), $email);
	}

	/**
	 * Check for module URL validity
	 *
	 * @param string $url module URL to validate
	 * @param array $errors Reference array for catching errors
	 * @return boolean Validity is ok or not
	 */
	public static function isModuleUrl($url, &$errors)
	{
		if (!$url || $url == 'http://')
			$errors[] = Tools::displayError('Please specify module URL');
		elseif (substr($url, -4) != '.tar' && substr($url, -4) != '.zip' && substr($url, -4) != '.tgz' && substr($url, -7) != '.tar.gz')
			$errors[] = Tools::displayError('Unknown archive type');
		else
		{
			if ((strpos($url, 'http')) === false)
				$url = 'http://'.$url;
			if (!is_array(@get_headers($url)))
				$errors[] = Tools::displayError('Invalid URL');
		}
		if (!count($errors))
			return true;
		return false;

	}

	/**
	 * Check for MD5 string validity
	 *
	 * @param string $md5 MD5 string to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isMd5($md5)
	{
		return preg_match('/^[a-f0-9A-F]{32}$/', $md5);
	}

	/**
	 * Check for SHA1 string validity
	 *
	 * @param string $sha1 SHA1 string to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isSha1($sha1)
	{
		return preg_match('/^[a-fA-F0-9]{40}$/', $sha1);
	}

	/**
	 * Check for a float number validity
	 *
	 * @param float $float Float number to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isFloat($float)
	{
		return strval((float)$float) == strval($float);
	}

	public static function isUnsignedFloat($float)
	{
		return strval((float)$float) == strval($float) && $float >= 0;
	}

	/**
	 * Check for a float number validity
	 *
	 * @param float $float Float number to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isOptFloat($float)
	{
		return empty($float) || Validate::isFloat($float);
	}

	/**
	 * Check for a carrier name validity
	 *
	 * @param string $name Carrier name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isCarrierName($name)
	{
		return empty($name) || preg_match(Tools::cleanNonUnicodeSupport('/^[^<>;=#{}]*$/u'), $name);
	}

	/**
	 * Check for an image size validity
	 *
	 * @param string $size Image size to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isImageSize($size)
	{
		return preg_match('/^[0-9]{1,4}$/', $size);
	}

	/**
	 * Check for name validity
	 *
	 * @param string $name Name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isName($name)
	{
		return preg_match(Tools::cleanNonUnicodeSupport('/^[^0-9!<>,;?=+()@#"°{}_$%:]*$/u'), stripslashes($name));
	}

	/**
	 * Check for hook name validity
	 *
	 * @param string $hook Hook name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isHookName($hook)
	{
		return preg_match('/^[a-zA-Z0-9_-]+$/', $hook);
	}

	/**
	 * Check for sender name validity
	 *
	 * @param string $mail_name Sender name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isMailName($mail_name)
	{
		return (is_string($mail_name) && preg_match(Tools::cleanNonUnicodeSupport('/^[^<>;=#{}]*$/u'), $mail_name));
	}

	/**
	 * Check for e-mail subject validity
	 *
	 * @param string $mail_subject e-mail subject to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isMailSubject($mail_subject)
	{
		return preg_match(Tools::cleanNonUnicodeSupport('/^[^<>]*$/u'), $mail_subject);
	}

	/**
	 * Check for module name validity
	 *
	 * @param string $module_name Module name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isModuleName($module_name)
	{
		return (is_string($module_name) && preg_match('/^[a-zA-Z0-9_-]+$/', $module_name));
	}

	/**
	 * Check for template name validity
	 *
	 * @param string $tpl_name Template name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isTplName($tpl_name)
	{
		return preg_match('/^[a-zA-Z0-9_-]+$/', $tpl_name);
	}

	/**
	 * Check for image type name validity
	 *
	 * @param string $type Image type name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isImageTypeName($type)
	{
		return preg_match('/^[a-zA-Z0-9_ -]+$/', $type);
	}

	/**
	 * Check for price validity
	 *
	 * @param string $price Price to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isPrice($price)
	{
		return preg_match('/^[0-9]{1,10}(\.[0-9]{1,9})?$/', $price);
	}

	/**
	* Check for price validity (including negative price)
	*
	* @param string $price Price to validate
	* @return boolean Validity is ok or not
	*/
	public static function isNegativePrice($price)
	{
		return preg_match('/^[-]?[0-9]{1,10}(\.[0-9]{1,9})?$/', $price);
	}

	/**
	 * Check for language code (ISO) validity
	 *
	 * @param string $iso_code Language code (ISO) to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isLanguageIsoCode($iso_code)
	{
		return preg_match('/^[a-zA-Z]{2,3}$/', $iso_code);
	}

	public static function isLanguageCode($s)
	{
		return preg_match('/^[a-zA-Z]{2}(-[a-zA-Z]{2})?$/', $s);
	}

	public static function isStateIsoCode($iso_code)
	{
		return preg_match('/^[a-zA-Z0-9]{1,4}((-)[a-zA-Z0-9]{1,4})?$/', $iso_code);
	}

	public static function isNumericIsoCode($iso_code)
	{
		return preg_match('/^[0-9]{2,3}$/', $iso_code);
	}

	/**
	 * Check for voucher name validity
	 *
	 * @param string $voucher voucher to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isDiscountName($voucher)
	{
		return preg_match('/^[^!<>,;?=+()@"°{}_$%:]{3,32}$/u', $voucher);
	}

	/**
	 * Check for product or category name validity
	 *
	 * @param string $name Product or category name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isCatalogName($name)
	{
		return preg_match('/^[^<>;=#{}]*$/u', $name);
	}

	/**
	 * Check for a message validity
	 *
	 * @param string $message Message to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isMessage($message)
	{
		return !preg_match('/[<>{}]/i', $message);
	}

	/**
	 * Check for a country name validity
	 *
	 * @param string $name Country name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isCountryName($name)
	{
		return preg_match('/^[a-zA-Z -]+$/', $name);
	}

	/**
	 * Check for a link (url-rewriting only) validity
	 *
	 * @param string $link Link to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isLinkRewrite($link)
	{
		if (Configuration::get('PS_ALLOW_ACCENTED_CHARS_URL'))
			return preg_match('/^[_a-zA-Z0-9\-\pL]+$/u', $link);
		return preg_match('/^[_a-zA-Z0-9\-]+$/', $link);
	}
	
	/**
	 * Check for a route pattern validity
	 *
	 * @param string $pattern to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isRoutePattern($pattern)
	{
		if (Configuration::get('PS_ALLOW_ACCENTED_CHARS_URL'))
			return preg_match('/^[_a-zA-Z0-9\(\)\.{}:\/\-\pL]+$/u', $pattern);
		return preg_match('/^[_a-zA-Z0-9\(\)\.{}:\/\-]+$/', $pattern);
	}
	
	/**
	 * Check for a postal address validity
	 *
	 * @param string $address Address to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isAddress($address)
	{
		return empty($address) || preg_match('/^[^!<>?=+@{}_$%]*$/u', $address);
	}

	/**
	 * Check for city name validity
	 *
	 * @param string $city City name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isCityName($city)
	{
		return preg_match('/^[^!<>;?=+@#"°{}_$%]*$/u', $city);
	}

	/**
	 * Check for search query validity
	 *
	 * @param string $search Query to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isValidSearch($search)
	{
		return preg_match('/^[^<>;=#{}]{0,64}$/u', $search);
	}

	/**
	 * Check for standard name validity
	 *
	 * @param string $name Name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isGenericName($name)
	{
		return empty($name) || preg_match('/^[^<>={}]*$/u', $name);
	}

	/**
	 * Check for HTML field validity (no XSS please !)
	 *
	 * @param string $html HTML field to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isCleanHtml($html, $allow_iframe = false)
	{
		$events = 'onmousedown|onmousemove|onmmouseup|onmouseover|onmouseout|onload|onunload|onfocus|onblur|onchange';
		$events .= '|onsubmit|ondblclick|onclick|onkeydown|onkeyup|onkeypress|onmouseenter|onmouseleave|onerror|onselect|onreset|onabort|ondragdrop|onresize|onactivate|onafterprint|onmoveend';
		$events .= '|onafterupdate|onbeforeactivate|onbeforecopy|onbeforecut|onbeforedeactivate|onbeforeeditfocus|onbeforepaste|onbeforeprint|onbeforeunload|onbeforeupdate|onmove';
		$events .= '|onbounce|oncellchange|oncontextmenu|oncontrolselect|oncopy|oncut|ondataavailable|ondatasetchanged|ondatasetcomplete|ondeactivate|ondrag|ondragend|ondragenter|onmousewheel';
		$events .= '|ondragleave|ondragover|ondragstart|ondrop|onerrorupdate|onfilterchange|onfinish|onfocusin|onfocusout|onhashchange|onhelp|oninput|onlosecapture|onmessage|onmouseup|onmovestart';
		$events .= '|onoffline|ononline|onpaste|onpropertychange|onreadystatechange|onresizeend|onresizestart|onrowenter|onrowexit|onrowsdelete|onrowsinserted|onscroll|onsearch|onselectionchange';
		$events .= '|onselectstart|onstart|onstop';

		if (preg_match('/<[\s]*script/ims', $html) || preg_match('/('.$events.')[\s]*=/ims', $html) || preg_match('/.*script\:/ims', $html))
			return false;

		if (!$allow_iframe && preg_match('/<[\s]*(i?frame|form|input|embed|object)/ims', $html))
			return false;

		return true;
	}

	/**
	 * Check for product reference validity
	 *
	 * @param string $reference Product reference to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isReference($reference)
	{
		return preg_match('/^[^<>;={}]*$/u', $reference);
	}

	/**
	 * Check for password validity
	 *
	 * @param string $passwd Password to validate
	 * @param int $size
	 * @return boolean Validity is ok or not
	 */
	public static function isPasswd($passwd, $size = Validate::PASSWORD_LENGTH)
	{
		return (Tools::strlen($passwd) >= $size && Tools::strlen($passwd) < 255);
	}

	public static function isPasswdAdmin($passwd)
	{
		return Validate::isPasswd($passwd, Validate::ADMIN_PASSWORD_LENGTH);
	}

	/**
	 * Check for configuration key validity
	 *
	 * @param string $config_name Configuration key to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isConfigName($config_name)
	{
		return preg_match('/^[a-zA-Z_0-9-]+$/', $config_name);
	}

	/**
	 * Check date formats like http://php.net/manual/en/function.date.php
	 *
	 * @param string $date_format date format to check
	 * @return boolean Validity is ok or not
	 */
	public static function isPhpDateFormat($date_format)
	{
		// We can't really check if this is valid or not, because this is a string and you can write whatever you want in it.
		// That's why only < et > are forbidden (HTML)
		return preg_match('/^[^<>]+$/', $date_format);
	}

	/**
	 * Check for date format
	 *
	 * @param string $date Date to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isDateFormat($date)
	{
		return (bool)preg_match('/^([0-9]{4})-((0?[0-9])|(1[0-2]))-((0?[0-9])|([1-2][0-9])|(3[01]))( [0-9]{2}:[0-9]{2}:[0-9]{2})?$/', $date);
	}

	/**
	 * Check for date validity
	 *
	 * @param string $date Date to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isDate($date)
	{
		if (!preg_match('/^([0-9]{4})-((?:0?[0-9])|(?:1[0-2]))-((?:0?[0-9])|(?:[1-2][0-9])|(?:3[01]))( [0-9]{2}:[0-9]{2}:[0-9]{2})?$/', $date, $matches))
			return false;
		return checkdate((int)$matches[2], (int)$matches[3], (int)$matches[1]);
	}

	/**
	 * Check for birthDate validity
	 *
	 * @param string $date birthdate to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isBirthDate($date)
	{
		if (empty($date) || $date == '0000-00-00')
			return true;
		if (preg_match('/^([0-9]{4})-((?:0?[1-9])|(?:1[0-2]))-((?:0?[1-9])|(?:[1-2][0-9])|(?:3[01]))([0-9]{2}:[0-9]{2}:[0-9]{2})?$/', $date, $birth_date))
		{
			if ($birth_date[1] > date('Y') && $birth_date[2] > date('m') && $birth_date[3] > date('d')
				|| $birth_date[1] == date('Y') && $birth_date[2] == date('m') && $birth_date[3] > date('d')
				|| $birth_date[1] == date('Y') && $birth_date[2] > date('m'))
				return false;
			return true;
		}
		return false;
	}

	/**
	 * Check for boolean validity
	 *
	 * @param boolean $bool Boolean to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isBool($bool)
	{
		return $bool === null || is_bool($bool) || preg_match('/^0|1$/', $bool);
	}

	/**
	 * Check for phone number validity
	 *
	 * @param string $number Phone number to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isPhoneNumber($number)
	{
		return preg_match('/^[+0-9. ()-]*$/', $number);
	}

	/**
	 * Check for barcode validity (EAN-13)
	 *
	 * @param string $ean13 Barcode to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isEan13($ean13)
	{
		return !$ean13 || preg_match('/^[0-9]{0,13}$/', $ean13);
	}

	/**
	 * Check for barcode validity (UPC)
	 *
	 * @param string $upc Barcode to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isUpc($upc)
	{
		return !$upc || preg_match('/^[0-9]{0,12}$/', $upc);
	}

	/**
	 * Check for postal code validity
	 *
	 * @param string $postcode Postal code to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isPostCode($postcode)
	{
		return empty($postcode) || preg_match('/^[a-zA-Z 0-9-]+$/', $postcode);
	}

	/**
	 * Check for zip code format validity
	 *
	 * @param string $zip_code zip code format to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isZipCodeFormat($zip_code)
	{
		if (!empty($zip_code))
			return preg_match('/^[NLCnlc 0-9-]+$/', $zip_code);
		return true;
	}

	/**
	 * Check for table or identifier validity
	 * Mostly used in database for ordering : ASC / DESC
	 *
	 * @param string $way Keyword to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isOrderWay($way)
	{
		return ($way === 'ASC' | $way === 'DESC' | $way === 'asc' | $way === 'desc');
	}

	/**
	 * Check for table or identifier validity
	 * Mostly used in database for ordering : ORDER BY field
	 *
	 * @param string $order Field to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isOrderBy($order)
	{
		return preg_match('/^[a-zA-Z0-9.!_-]+$/', $order);
	}

	/**
	 * Check for table or identifier validity
	 * Mostly used in database for table names and id_table
	 *
	 * @param string $table Table/identifier to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isTableOrIdentifier($table)
	{
		return preg_match('/^[a-zA-Z0-9_-]+$/', $table);
	}

	/**
	 * @deprecated 1.5.0 You should not use list like this, please use an array when you build a SQL query
	 */
	public static function isValuesList()
	{
		Tools::displayAsDeprecated();
		return true;
		/* For history reason, we keep this line */
		// return preg_match('/^[0-9,\'(). NULL]+$/', $list);
	}

	/**
	 * Check for tags list validity
	 *
	 * @param string $list List to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isTagsList($list)
	{
		return preg_match('/^[^!<>;?=+#"°{}_$%]*$/u', $list);
	}

	/**
	 * Check for product visibility
	 *
	 * @param string $s visibility to check
	 * @return boolean Validity is ok or not
	 */
	public static function isProductVisibility($s)
	{
		return preg_match('/^both|catalog|search|none$/i', $s);
	}

	/**
	 * Check for an integer validity
	 *
	 * @param integer $value Integer to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isInt($value)
	{
		return ((string)(int)$value === (string)$value || $value === false);
	}

	/**
	 * Check for an integer validity (unsigned)
	 *
	 * @param integer $value Integer to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isUnsignedInt($value)
	{
		return (preg_match('#^[0-9]+$#', (string)$value) && $value < 4294967296 && $value >= 0);
	}
	
	/**
	 * Check for an percentage validity (between 0 and 100)
	 *
	 * @param float $value Float to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isPercentage($value)
	{
		return (Validate::isFloat($value) && $value >= 0 && $value <= 100);
	}

	/**
	 * Check for an integer validity (unsigned)
	 * Mostly used in database for auto-increment
	 *
	 * @param integer $id Integer to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isUnsignedId($id)
	{
		return Validate::isUnsignedInt($id); /* Because an id could be equal to zero when there is no association */
	}

	public static function isNullOrUnsignedId($id)
	{
		return $id === null || Validate::isUnsignedId($id);
	}

	/**
	 * Check object validity
	 *
	 * @param object $object Object to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isLoadedObject($object)
	{
		return is_object($object) && $object->id;
	}

	/**
	 * Check object validity
	 *
	 * @param integer $object Object to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isColor($color)
	{
		return preg_match('/^(#[0-9a-fA-F]{6}|[a-zA-Z0-9-]*)$/', $color);
	}

	/**
	 * Check url validity (disallowed empty string)
	 *
	 * @param string $url Url to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isUrl($url)
	{
		return preg_match('/^[~:#,$%&_=\(\)\.\? \+\-@\/a-zA-Z0-9]+$/', $url);
	}

	/**
	 * Check tracking number validity (disallowed empty string)
	 *
	 * @param string $tracking_number Tracking number to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isTrackingNumber($tracking_number)
	{
		return preg_match('/^[~:#,%&_=\(\)\[\]\.\? \+\-@\/a-zA-Z0-9]+$/', $tracking_number);
	}

	/**
	 * Check url validity (allowed empty string)
	 *
	 * @param string $url Url to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isUrlOrEmpty($url)
	{
		return empty($url) || Validate::isUrl($url);
	}

	/**
	 * Check if URL is absolute
	 *
	 * @param string $url URL to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isAbsoluteUrl($url)
	{
		if (!empty($url))
			return preg_match('/^https?:\/\/[$~:#,%&_=\(\)\[\]\.\? \+\-@\/a-zA-Z0-9]+$/', $url);
		return true;
	}

	public static function isMySQLEngine($engine)
	{
		return (in_array($engine, array('InnoDB', 'MyISAM')));
	}

	public static function isUnixName($data)
	{
		return preg_match('/^[a-z0-9\._-]+$/ui', $data);
	}

	public static function isTablePrefix($data)
	{
		// Even if "-" is theorically allowed, it will be considered a syntax error if you do not add backquotes (`) around the table name
		return preg_match('/^[a-z0-9_]+$/ui', $data);
	}

	/**
	 * Check for standard name file validity
	 *
	 * @param string $name Name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isFileName($name)
	{
		return preg_match('/^[a-zA-Z0-9_.-]+$/', $name);
	}

	/**
	 * Check for standard name directory validity 
	 * 
	 * @param string $dir Directory to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isDirName($dir)
	{
		return (bool)preg_match('/^[a-zA-Z0-9_.-]*$/', $dir);
	}

	/**
	 * Check for admin panel tab name validity
	 *
	 * @param string $name Name to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isTabName($name)
	{
		return preg_match('/^[^<>]+$/u', $name);
	}

	public static function isWeightUnit($unit)
	{
		return (Validate::isGenericName($unit) & (Tools::strlen($unit) < 5));
	}

	public static function isDistanceUnit($unit)
	{
		return (Validate::isGenericName($unit) & (Tools::strlen($unit) < 5));
	}

	public static function isSubDomainName($domain)
	{
		return preg_match('/^[a-zA-Z0-9-_]*$/', $domain);
	}

	public static function isVoucherDescription($text)
	{
		return preg_match('/^([^<>{}]|<br \/>)*$/i', $text);
	}

	/**
	 * Check if the value is a sort direction value (DESC/ASC)
	 *
	 * @param string $value
	 * @return boolean Validity is ok or not
	 */
	public static function isSortDirection($value)
	{
		return ($value !== null && ($value === 'ASC' || $value === 'DESC'));
	}

	/**
	 * Customization fields' label validity
	 *
	 * @param string $label
	 * @return boolean Validity is ok or not
	 */
	public static function isLabel($label)
	{
		return (preg_match('/^[^{}<>]*$/u', $label));
	}

	/**
	 * Price display method validity
	 *
	 * @param integer $data Data to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isPriceDisplayMethod($data)
	{
		return ($data == PS_TAX_EXC || $data == PS_TAX_INC);
	}

	/**
	 * @param string $dni to validate
	 * @return bool
	 */
	public static function isDniLite($dni)
	{
		return empty($dni) || (bool)preg_match('/^[0-9A-Za-z-.]{1,16}$/U', $dni);
	}

	/**
	 * Check if $data is a PrestaShop cookie object
	 *
	 * @param mixed $data to validate
	 * @return bool
	 */
	public static function isCookie($data)
	{
		return (is_object($data) && get_class($data) == 'Cookie');
	}

	/**
	 * Price display method validity
	 *
	 * @param string $data Data to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isString($data)
	{
		return is_string($data);
	}

	/**
	 * Check if the data is a reduction type (amout or percentage)
	 *
	 * @param string $data Data to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isReductionType($data)
	{
		return ($data === 'amount' || $data === 'percentage');
	}

	/**
	 * Check for bool_id
	 *
	 * @param string $ids
	 * @return boolean Validity is ok or not
	 */
	public static function isBoolId($ids)
	{
		return (bool)preg_match('#^[01]_[0-9]+$#', $ids);
	}

	/**
	 * @deprecated 1.5.0 Use Validate::isBoolId()
	 */
	public static function isBool_Id($ids)
	{
		Tools::displayAsDeprecated();
		return Validate::isBoolId($ids);
	}

	/**
	 * Check the localization pack part selected
	 *
	 * @param string $data Localization pack to check
	 * @return boolean Validity is ok or not
	 */
	public static function isLocalizationPackSelection($data)
	{
		return in_array((string)$data, array('states', 'taxes', 'currencies', 'languages', 'units', 'groups'));
	}

	/**
	 * Check for PHP serialized data
	 *
	 * @param string $data Serialized data to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isSerializedArray($data)
	{
		return $data === null || (is_string($data) && preg_match('/^a:[0-9]+:{.*;}$/s', $data));
	}

	/**
	 * Check for Latitude/Longitude
	 *
	 * @param string $data Coordinate to validate
	 * @return boolean Validity is ok or not
	 */
	public static function isCoordinate($data)
	{
		return $data === null || preg_match('/^\-?[0-9]{1,8}\.[0-9]{1,8}$/s', $data);
	}

	/**
	 * Check for Language Iso Code
	 *
	 * @param string $iso_code
	 * @return boolean Validity is ok or not
	 */
	public static function isLangIsoCode($iso_code)
	{
		return (bool)preg_match('/^[a-zA-Z]{2,3}$/s', $iso_code);
	}

	/**
	 * Check for Language File Name
	 *
	 * @param string $file_name
	 * @return boolean Validity is ok or not
	 */
	public static function isLanguageFileName($file_name)
	{
		return (bool)preg_match('/^[a-zA-Z]{2,3}\.(?:gzip|tar\.gz)$/s', $file_name);
	}

	/**
	 *
	 * @param array $ids
	 * @return boolean return true if the array contain only unsigned int value
	 */
	public static function isArrayWithIds($ids)
	{
		if (count($ids))
			foreach ($ids as $id)
				if ($id == 0 || !Validate::isUnsignedInt($id))
					return false;
		return true;
	}

	/**
	 *
	 * @param array $zones
	 * @return boolean return true if array contain all value required for an image map zone
	 */
	public static function isSceneZones($zones)
	{
		foreach ($zones as $zone)
		{
			if (!isset($zone['x1']) || !Validate::isUnsignedInt($zone['x1']))
				return false;
			if (!isset($zone['y1']) || !Validate::isUnsignedInt($zone['y1']))
				return false;
			if (!isset($zone['width']) || !Validate::isUnsignedInt($zone['width']))
				return false;
			if (!isset($zone['height']) || !Validate::isUnsignedInt($zone['height']))
				return false;
			if (!isset($zone['id_product']) || !Validate::isUnsignedInt($zone['id_product']))
				return false;
		}
		return true;
	}

	/**
	 *
	 * @param array $stock_management
	 * @return boolean return true if is a valide stock management
	 */
	public static function isStockManagement($stock_management)
	{
		if (!in_array($stock_management, array('WA', 'FIFO', 'LIFO')))
			return false;
		return true;
	}

	/**
	 * Validate SIRET Code
	 * @static
	 * @param $siret SIRET Code
	 * @return boolean Return true if is valid
	 */
	public static function isSiret($siret)
	{
		if (Tools::strlen($siret) != 14)
			return false;
		$sum = 0;
		for ($i = 0; $i != 14; $i++)
		{
			$tmp = ((($i + 1) % 2) + 1) * intval($siret[$i]);
			if ($tmp >= 10)
				$tmp -= 9;
			$sum += $tmp;
		}
		return ($sum % 10 === 0);
	}

	/**
	 * Validate APE Code
	 * @static
	 * @param $ape APE Code
	 * @return boolean Return true if is valid
	 */
	public static function isApe($ape)
	{
		return (bool)preg_match('/^[0-9]{3,4}[a-zA-Z]{1}$/s', $ape);
	}
	
	public static function isControllerName($name)
	{
		return (bool)(is_string($name) && preg_match('/^[0-9a-zA-Z-_]*$/u', $name));
	}
	
	public static function isPrestaShopVersion($version)
	{
		return (preg_match('/^[0-1]\.[0-9]{1,2}(\.[0-9]{1,2}){0,2}$/', $version) && ip2long($version));
	}

	public static function isOrderInvoiceNumber($id)
	{
		return (preg_match('/^(?:'.Configuration::get('PS_INVOICE_PREFIX', Context::getContext()->language->id).')\s*([0-9]+)$/i', $id));
	}
}
Creat By MiNi SheLL
Email: devilkiller@gmail.com