Chris@0
|
1 <?php
|
Chris@0
|
2
|
Chris@0
|
3 /*
|
Chris@0
|
4 * This file is part of the Symfony package.
|
Chris@0
|
5 *
|
Chris@0
|
6 * (c) Fabien Potencier <fabien@symfony.com>
|
Chris@0
|
7 *
|
Chris@0
|
8 * For the full copyright and license information, please view the LICENSE
|
Chris@0
|
9 * file that was distributed with this source code.
|
Chris@0
|
10 */
|
Chris@0
|
11
|
Chris@0
|
12 namespace Symfony\Component\Validator\Constraints;
|
Chris@0
|
13
|
Chris@0
|
14 use Symfony\Component\Validator\Constraint;
|
Chris@0
|
15 use Symfony\Component\Validator\ConstraintValidator;
|
Chris@0
|
16 use Symfony\Component\Validator\Exception\UnexpectedTypeException;
|
Chris@0
|
17
|
Chris@0
|
18 /**
|
Chris@0
|
19 * Validates whether the value is a valid ISSN.
|
Chris@0
|
20 *
|
Chris@0
|
21 * @author Antonio J. GarcĂa Lagar <aj@garcialagar.es>
|
Chris@0
|
22 * @author Bernhard Schussek <bschussek@gmail.com>
|
Chris@0
|
23 *
|
Chris@0
|
24 * @see https://en.wikipedia.org/wiki/Issn
|
Chris@0
|
25 */
|
Chris@0
|
26 class IssnValidator extends ConstraintValidator
|
Chris@0
|
27 {
|
Chris@0
|
28 /**
|
Chris@0
|
29 * {@inheritdoc}
|
Chris@0
|
30 */
|
Chris@0
|
31 public function validate($value, Constraint $constraint)
|
Chris@0
|
32 {
|
Chris@0
|
33 if (!$constraint instanceof Issn) {
|
Chris@0
|
34 throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Issn');
|
Chris@0
|
35 }
|
Chris@0
|
36
|
Chris@0
|
37 if (null === $value || '' === $value) {
|
Chris@0
|
38 return;
|
Chris@0
|
39 }
|
Chris@0
|
40
|
Chris@17
|
41 if (!is_scalar($value) && !(\is_object($value) && method_exists($value, '__toString'))) {
|
Chris@0
|
42 throw new UnexpectedTypeException($value, 'string');
|
Chris@0
|
43 }
|
Chris@0
|
44
|
Chris@0
|
45 $value = (string) $value;
|
Chris@0
|
46 $canonical = $value;
|
Chris@0
|
47
|
Chris@0
|
48 // 1234-567X
|
Chris@0
|
49 // ^
|
Chris@0
|
50 if (isset($canonical[4]) && '-' === $canonical[4]) {
|
Chris@0
|
51 // remove hyphen
|
Chris@0
|
52 $canonical = substr($canonical, 0, 4).substr($canonical, 5);
|
Chris@0
|
53 } elseif ($constraint->requireHyphen) {
|
Chris@0
|
54 $this->context->buildViolation($constraint->message)
|
Chris@0
|
55 ->setParameter('{{ value }}', $this->formatValue($value))
|
Chris@0
|
56 ->setCode(Issn::MISSING_HYPHEN_ERROR)
|
Chris@0
|
57 ->addViolation();
|
Chris@0
|
58
|
Chris@0
|
59 return;
|
Chris@0
|
60 }
|
Chris@0
|
61
|
Chris@17
|
62 $length = \strlen($canonical);
|
Chris@0
|
63
|
Chris@0
|
64 if ($length < 8) {
|
Chris@0
|
65 $this->context->buildViolation($constraint->message)
|
Chris@0
|
66 ->setParameter('{{ value }}', $this->formatValue($value))
|
Chris@0
|
67 ->setCode(Issn::TOO_SHORT_ERROR)
|
Chris@0
|
68 ->addViolation();
|
Chris@0
|
69
|
Chris@0
|
70 return;
|
Chris@0
|
71 }
|
Chris@0
|
72
|
Chris@0
|
73 if ($length > 8) {
|
Chris@0
|
74 $this->context->buildViolation($constraint->message)
|
Chris@0
|
75 ->setParameter('{{ value }}', $this->formatValue($value))
|
Chris@0
|
76 ->setCode(Issn::TOO_LONG_ERROR)
|
Chris@0
|
77 ->addViolation();
|
Chris@0
|
78
|
Chris@0
|
79 return;
|
Chris@0
|
80 }
|
Chris@0
|
81
|
Chris@0
|
82 // 1234567X
|
Chris@0
|
83 // ^^^^^^^ digits only
|
Chris@0
|
84 if (!ctype_digit(substr($canonical, 0, 7))) {
|
Chris@0
|
85 $this->context->buildViolation($constraint->message)
|
Chris@0
|
86 ->setParameter('{{ value }}', $this->formatValue($value))
|
Chris@0
|
87 ->setCode(Issn::INVALID_CHARACTERS_ERROR)
|
Chris@0
|
88 ->addViolation();
|
Chris@0
|
89
|
Chris@0
|
90 return;
|
Chris@0
|
91 }
|
Chris@0
|
92
|
Chris@0
|
93 // 1234567X
|
Chris@0
|
94 // ^ digit, x or X
|
Chris@0
|
95 if (!ctype_digit($canonical[7]) && 'x' !== $canonical[7] && 'X' !== $canonical[7]) {
|
Chris@0
|
96 $this->context->buildViolation($constraint->message)
|
Chris@0
|
97 ->setParameter('{{ value }}', $this->formatValue($value))
|
Chris@0
|
98 ->setCode(Issn::INVALID_CHARACTERS_ERROR)
|
Chris@0
|
99 ->addViolation();
|
Chris@0
|
100
|
Chris@0
|
101 return;
|
Chris@0
|
102 }
|
Chris@0
|
103
|
Chris@0
|
104 // 1234567X
|
Chris@0
|
105 // ^ case-sensitive?
|
Chris@0
|
106 if ($constraint->caseSensitive && 'x' === $canonical[7]) {
|
Chris@0
|
107 $this->context->buildViolation($constraint->message)
|
Chris@0
|
108 ->setParameter('{{ value }}', $this->formatValue($value))
|
Chris@0
|
109 ->setCode(Issn::INVALID_CASE_ERROR)
|
Chris@0
|
110 ->addViolation();
|
Chris@0
|
111
|
Chris@0
|
112 return;
|
Chris@0
|
113 }
|
Chris@0
|
114
|
Chris@0
|
115 // Calculate a checksum. "X" equals 10.
|
Chris@0
|
116 $checkSum = 'X' === $canonical[7]
|
Chris@0
|
117 || 'x' === $canonical[7]
|
Chris@0
|
118 ? 10
|
Chris@0
|
119 : $canonical[7];
|
Chris@0
|
120
|
Chris@0
|
121 for ($i = 0; $i < 7; ++$i) {
|
Chris@0
|
122 // Multiply the first digit by 8, the second by 7, etc.
|
Chris@0
|
123 $checkSum += (8 - $i) * $canonical[$i];
|
Chris@0
|
124 }
|
Chris@0
|
125
|
Chris@0
|
126 if (0 !== $checkSum % 11) {
|
Chris@0
|
127 $this->context->buildViolation($constraint->message)
|
Chris@0
|
128 ->setParameter('{{ value }}', $this->formatValue($value))
|
Chris@0
|
129 ->setCode(Issn::CHECKSUM_FAILED_ERROR)
|
Chris@0
|
130 ->addViolation();
|
Chris@0
|
131 }
|
Chris@0
|
132 }
|
Chris@0
|
133 }
|