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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* 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@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/**
* @see Zend_Validate_Abstract
*/
/**
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Validate_Isbn extends Zend_Validate_Abstract
{
const AUTO = 'auto';
const ISBN10 = '10';
const ISBN13 = '13';
const INVALID = 'isbnInvalid';
const NO_ISBN = 'isbnNoIsbn';
/**
* Validation failure message template definitions.
*
* @var array
*/
protected $_messageTemplates = array(
self::INVALID => "Invalid type given. String or integer expected",
self::NO_ISBN => "'%value%' is not a valid ISBN number",
);
/**
* Allowed type.
*
* @var string
*/
protected $_type = self::AUTO;
/**
* Separator character.
*
* @var string
*/
protected $_separator = '';
/**
* Set up options.
*
* @param Zend_Config|array $options
* @throws Zend_Validate_Exception When $options is not valid
*/
public function __construct($options = array())
{
// prepare options
if ($options instanceof Zend_Config) {
$options = $options->toArray();
}
if (!is_array($options)) {
/**
* @see Zend_Validate_Exception
*/
throw new Zend_Validate_Exception('Invalid options provided.');
}
// set type
if (array_key_exists('type', $options)) {
$this->setType($options['type']);
}
// set separator
if (array_key_exists('separator', $options)) {
$this->setSeparator($options['separator']);
}
}
/**
* Detect input format.
*
* @return string
*/
protected function _detectFormat()
{
// prepare separator and pattern list
$sep = quotemeta($this->_separator);
$patterns = array();
$lengths = array();
// check for ISBN-10
if ($this->_type == self::ISBN10 || $this->_type == self::AUTO) {
if (empty($sep)) {
$pattern = '/^[0-9]{9}[0-9X]{1}$/';
$length = 10;
} else {
$pattern = "/^[0-9]{1,7}[{$sep}]{1}[0-9]{1,7}[{$sep}]{1}[0-9]{1,7}[{$sep}]{1}[0-9X]{1}$/";
$length = 13;
}
$patterns[$pattern] = self::ISBN10;
$lengths[$pattern] = $length;
}
// check for ISBN-13
if ($this->_type == self::ISBN13 || $this->_type == self::AUTO) {
if (empty($sep)) {
$pattern = '/^[0-9]{13}$/';
$length = 13;
} else {
$pattern = "/^[0-9]{1,9}[{$sep}]{1}[0-9]{1,5}[{$sep}]{1}[0-9]{1,9}[{$sep}]{1}[0-9]{1,9}[{$sep}]{1}[0-9]{1}$/";
$length = 17;
}
$patterns[$pattern] = self::ISBN13;
$lengths[$pattern] = $length;
}
// check pattern list
foreach ($patterns as $pattern => $type) {
if ((strlen($this->_value) == $lengths[$pattern]) && preg_match($pattern, $this->_value)) {
return $type;
}
}
return null;
}
/**
* Defined by Zend_Validate_Interface.
*
* Returns true if and only if $value is a valid ISBN.
*
* @param string $value
* @return boolean
*/
public function isValid($value)
{
if (!is_string($value) && !is_int($value)) {
$this->_error(self::INVALID);
return false;
}
$value = (string) $value;
$this->_setValue($value);
switch ($this->_detectFormat()) {
case self::ISBN10:
// sum
$isbn10 = str_replace($this->_separator, '', $value);
$sum = 0;
for ($i = 0; $i < 9; $i++) {
$sum += (10 - $i) * $isbn10[$i];
}
// checksum
$checksum = 11 - ($sum % 11);
if ($checksum == 11) {
$checksum = '0';
} elseif ($checksum == 10) {
$checksum = 'X';
}
break;
case self::ISBN13:
// sum
$isbn13 = str_replace($this->_separator, '', $value);
$sum = 0;
for ($i = 0; $i < 12; $i++) {
if ($i % 2 == 0) {
$sum += $isbn13[$i];
} else {
$sum += 3 * $isbn13[$i];
}
}
// checksum
$checksum = 10 - ($sum % 10);
if ($checksum == 10) {
$checksum = '0';
}
break;
default:
$this->_error(self::NO_ISBN);
return false;
}
// validate
if (substr($this->_value, -1) != $checksum) {
$this->_error(self::NO_ISBN);
return false;
}
return true;
}
/**
* Set separator characters.
*
* It is allowed only empty string, hyphen and space.
*
* @param string $separator
* @throws Zend_Validate_Exception When $separator is not valid
* @return Zend_Validate_Isbn Provides a fluent interface
*/
public function setSeparator($separator)
{
// check separator
if (!in_array($separator, array('-', ' ', ''))) {
/**
* @see Zend_Validate_Exception
*/
throw new Zend_Validate_Exception('Invalid ISBN separator.');
}
$this->_separator = $separator;
return $this;
}
/**
* Get separator characters.
*
* @return string
*/
public function getSeparator()
{
return $this->_separator;
}
/**
* Set allowed ISBN type.
*
* @param string $type
* @throws Zend_Validate_Exception When $type is not valid
* @return Zend_Validate_Isbn Provides a fluent interface
*/
public function setType($type)
{
// check type
if (!in_array($type, array(self::AUTO, self::ISBN10, self::ISBN13))) {
/**
* @see Zend_Validate_Exception
*/
throw new Zend_Validate_Exception('Invalid ISBN type');
}
$this->_type = $type;
return $this;
}
/**
* Get allowed ISBN type.
*
* @return string
*/
public function getType()
{
return $this->_type;
}
}
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