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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zend-validator for the canonical source repository
* @copyright Copyright (c) 2005-2016 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Validator;
class Isbn extends AbstractValidator
{
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 = [
self::INVALID => "Invalid type given. String or integer expected",
self::NO_ISBN => "The input is not a valid ISBN number",
];
protected $options = [
'type' => self::AUTO, // Allowed type
'separator' => '', // Separator character
];
/**
* Detect input format.
*
* @return string
*/
protected function detectFormat()
{
// prepare separator and pattern list
$sep = quotemeta($this->getSeparator());
$patterns = [];
$lengths = [];
$type = $this->getType();
// check for ISBN-10
if ($type == self::ISBN10 || $type == self::AUTO) {
if (empty($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] = $length;
}
// check for ISBN-13
if ($type == self::ISBN13 || $type == self::AUTO) {
if (empty($sep)) {
$pattern = '/^[0-9]{13}$/';
$length = 13;
} else {
// @codingStandardsIgnoreStart
$pattern = "/^[0-9]{1,9}[{$sep}]{1}[0-9]{1,5}[{$sep}]{1}[0-9]{1,9}[{$sep}]{1}[0-9]{1,9}[{$sep}]{1}[0-9]{1}$/";
// @codingStandardsIgnoreEnd
$length = 17;
}
$patterns[$pattern] = self::ISBN13;
$lengths[$pattern] = $length;
}
// check pattern list
foreach ($patterns as $pattern => $type) {
if ((strlen($this->getValue()) == $lengths[$pattern]) && preg_match($pattern, $this->getValue())) {
return $type;
}
}
return;
}
/**
* Returns true if and only if $value is a valid ISBN.
*
* @param string $value
* @return bool
*/
public function isValid($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:
$isbn = new Isbn\Isbn10();
break;
case self::ISBN13:
$isbn = new Isbn\Isbn13();
break;
default:
$this->error(self::NO_ISBN);
return false;
}
$value = str_replace($this->getSeparator(), '', $value);
$checksum = $isbn->getChecksum($value);
// validate
if (substr($this->getValue(), -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 Exception\InvalidArgumentException When $separator is not valid
* @return Isbn Provides a fluent interface
*/
public function setSeparator($separator)
{
// check separator
if (! in_array($separator, ['-', ' ', ''])) {
throw new Exception\InvalidArgumentException('Invalid ISBN separator.');
}
$this->options['separator'] = $separator;
return $this;
}
/**
* Get separator characters.
*
* @return string
*/
public function getSeparator()
{
return $this->options['separator'];
}
/**
* Set allowed ISBN type.
*
* @param string $type
* @throws Exception\InvalidArgumentException When $type is not valid
* @return Isbn Provides a fluent interface
*/
public function setType($type)
{
// check type
if (! in_array($type, [self::AUTO, self::ISBN10, self::ISBN13])) {
throw new Exception\InvalidArgumentException('Invalid ISBN type');
}
$this->options['type'] = $type;
return $this;
}
/**
* Get allowed ISBN type.
*
* @return string
*/
public function getType()
{
return $this->options['type'];
}
}
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