IsbnValidator.php — MailPoet – Newsletters, Email Marketing, and Automation 5.36.0

mailpoet / vendor-prefixed / symfony / validator / Constraints / IsbnValidator.php

mailpoet / vendor-prefixed / symfony / validator / Constraints Last commit date

IsbnValidator.php

122 lines

1	<?php
2	namespace MailPoetVendor\Symfony\Component\Validator\Constraints;
3	if (!defined('ABSPATH')) exit;
4	use MailPoetVendor\Symfony\Component\Validator\Constraint;
5	use MailPoetVendor\Symfony\Component\Validator\ConstraintValidator;
6	use MailPoetVendor\Symfony\Component\Validator\Exception\UnexpectedTypeException;
7	use MailPoetVendor\Symfony\Component\Validator\Exception\UnexpectedValueException;
8	class IsbnValidator extends ConstraintValidator
9	{
10	public function validate($value, Constraint $constraint)
11	{
12	if (!$constraint instanceof Isbn) {
13	throw new UnexpectedTypeException($constraint, Isbn::class);
14	}
15	if (null === $value \|\| '' === $value) {
16	return;
17	}
18	if (!\is_scalar($value) && !(\is_object($value) && \method_exists($value, '__toString'))) {
19	throw new UnexpectedValueException($value, 'string');
20	}
21	$value = (string) $value;
22	$canonical = \str_replace('-', '', $value);
23	// Explicitly validate against ISBN-10
24	if (Isbn::ISBN_10 === $constraint->type) {
25	if (\true !== ($code = $this->validateIsbn10($canonical))) {
26	$this->context->buildViolation($this->getMessage($constraint, $constraint->type))->setParameter('{{ value }}', $this->formatValue($value))->setCode($code)->addViolation();
27	}
28	return;
29	}
30	// Explicitly validate against ISBN-13
31	if (Isbn::ISBN_13 === $constraint->type) {
32	if (\true !== ($code = $this->validateIsbn13($canonical))) {
33	$this->context->buildViolation($this->getMessage($constraint, $constraint->type))->setParameter('{{ value }}', $this->formatValue($value))->setCode($code)->addViolation();
34	}
35	return;
36	}
37	// Try both ISBNs
38	// First, try ISBN-10
39	$code = $this->validateIsbn10($canonical);
40	// The ISBN can only be an ISBN-13 if the value was too long for ISBN-10
41	if (Isbn::TOO_LONG_ERROR === $code) {
42	// Try ISBN-13 now
43	$code = $this->validateIsbn13($canonical);
44	// If too short, this means we have 11 or 12 digits
45	if (Isbn::TOO_SHORT_ERROR === $code) {
46	$code = Isbn::TYPE_NOT_RECOGNIZED_ERROR;
47	}
48	}
49	if (\true !== $code) {
50	$this->context->buildViolation($this->getMessage($constraint))->setParameter('{{ value }}', $this->formatValue($value))->setCode($code)->addViolation();
51	}
52	}
53	protected function validateIsbn10(string $isbn)
54	{
55	// Choose an algorithm so that ERROR_INVALID_CHARACTERS is preferred
56	// over ERROR_TOO_SHORT/ERROR_TOO_LONG
57	// Otherwise "0-45122-5244" passes, but "0-45122_5244" reports
58	// "too long"
59	// Error priority:
60	// 1. ERROR_INVALID_CHARACTERS
61	// 2. ERROR_TOO_SHORT/ERROR_TOO_LONG
62	// 3. ERROR_CHECKSUM_FAILED
63	$checkSum = 0;
64	for ($i = 0; $i < 10; ++$i) {
65	// If we test the length before the loop, we get an ERROR_TOO_SHORT
66	// when actually an ERROR_INVALID_CHARACTERS is wanted, e.g. for
67	// "0-45122_5244" (typo)
68	if (!isset($isbn[$i])) {
69	return Isbn::TOO_SHORT_ERROR;
70	}
71	if ('X' === $isbn[$i]) {
72	$digit = 10;
73	} elseif (\ctype_digit($isbn[$i])) {
74	$digit = $isbn[$i];
75	} else {
76	return Isbn::INVALID_CHARACTERS_ERROR;
77	}
78	$checkSum += $digit * (10 - $i);
79	}
80	if (isset($isbn[$i])) {
81	return Isbn::TOO_LONG_ERROR;
82	}
83	return 0 === $checkSum % 11 ? \true : Isbn::CHECKSUM_FAILED_ERROR;
84	}
85	protected function validateIsbn13(string $isbn)
86	{
87	// Error priority:
88	// 1. ERROR_INVALID_CHARACTERS
89	// 2. ERROR_TOO_SHORT/ERROR_TOO_LONG
90	// 3. ERROR_CHECKSUM_FAILED
91	if (!\ctype_digit($isbn)) {
92	return Isbn::INVALID_CHARACTERS_ERROR;
93	}
94	$length = \strlen($isbn);
95	if ($length < 13) {
96	return Isbn::TOO_SHORT_ERROR;
97	}
98	if ($length > 13) {
99	return Isbn::TOO_LONG_ERROR;
100	}
101	$checkSum = 0;
102	for ($i = 0; $i < 13; $i += 2) {
103	$checkSum += $isbn[$i];
104	}
105	for ($i = 1; $i < 12; $i += 2) {
106	$checkSum += $isbn[$i] * 3;
107	}
108	return 0 === $checkSum % 10 ? \true : Isbn::CHECKSUM_FAILED_ERROR;
109	}
110	protected function getMessage(Isbn $constraint, ?string $type = null)
111	{
112	if (null !== $constraint->message) {
113	return $constraint->message;
114	} elseif (Isbn::ISBN_10 === $type) {
115	return $constraint->isbn10Message;
116	} elseif (Isbn::ISBN_13 === $type) {
117	return $constraint->isbn13Message;
118	}
119	return $constraint->bothIsbnMessage;
120	}
121	}
122