|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* @link http://www.yiiframework.com/ |
|
4
|
|
|
* @copyright Copyright (c) 2008 Yii Software LLC |
|
5
|
|
|
* @license http://www.yiiframework.com/license/ |
|
6
|
|
|
*/ |
|
7
|
|
|
|
|
8
|
|
|
namespace yii\validators; |
|
9
|
|
|
|
|
10
|
|
|
use Yii; |
|
11
|
|
|
use yii\base\InvalidConfigException; |
|
12
|
|
|
|
|
13
|
|
|
/** |
|
14
|
|
|
* EmailValidator validates that the attribute value is a valid email address. |
|
15
|
|
|
* |
|
16
|
|
|
* @author Qiang Xue <[email protected]> |
|
17
|
|
|
* @since 2.0 |
|
18
|
|
|
*/ |
|
19
|
|
|
class EmailValidator extends Validator |
|
20
|
|
|
{ |
|
21
|
|
|
/** |
|
22
|
|
|
* @var string the regular expression used to validate the attribute value. |
|
23
|
|
|
* @see http://www.regular-expressions.info/email.html |
|
24
|
|
|
*/ |
|
25
|
|
|
public $pattern = '/^[a-zA-Z0-9!#$%&\'*+\\/=?^_`{|}~-]+(?:\.[a-zA-Z0-9!#$%&\'*+\\/=?^_`{|}~-]+)*@(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?\.)+[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$/'; |
|
26
|
|
|
/** |
|
27
|
|
|
* @var string the regular expression used to validate email addresses with the name part. |
|
28
|
|
|
* This property is used only when [[allowName]] is true. |
|
29
|
|
|
* @see allowName |
|
30
|
|
|
*/ |
|
31
|
|
|
public $fullPattern = '/^[^@]*<[a-zA-Z0-9!#$%&\'*+\\/=?^_`{|}~-]+(?:\.[a-zA-Z0-9!#$%&\'*+\\/=?^_`{|}~-]+)*@(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?\.)+[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?>$/'; |
|
32
|
|
|
/** |
|
33
|
|
|
* @var bool whether to allow name in the email address (e.g. "John Smith <[email protected]>"). Defaults to false. |
|
34
|
|
|
* @see fullPattern |
|
35
|
|
|
*/ |
|
36
|
|
|
public $allowName = false; |
|
37
|
|
|
/** |
|
38
|
|
|
* @var bool whether to check whether the email's domain exists and has either an A or MX record. |
|
39
|
|
|
* Be aware that this check can fail due to temporary DNS problems even if the email address is |
|
40
|
|
|
* valid and an email would be deliverable. Defaults to false. |
|
41
|
|
|
*/ |
|
42
|
|
|
public $checkDNS = false; |
|
43
|
|
|
/** |
|
44
|
|
|
* @var bool whether validation process should take into account IDN (internationalized domain |
|
45
|
|
|
* names). Defaults to false meaning that validation of emails containing IDN will always fail. |
|
46
|
|
|
* Note that in order to use IDN validation you have to install and enable `intl` PHP extension, |
|
47
|
|
|
* otherwise an exception would be thrown. |
|
48
|
|
|
*/ |
|
49
|
|
|
public $enableIDN = false; |
|
50
|
|
|
|
|
51
|
|
|
|
|
52
|
|
|
/** |
|
53
|
|
|
* {@inheritdoc} |
|
54
|
|
|
*/ |
|
55
|
42 |
|
public function init() |
|
56
|
|
|
{ |
|
57
|
42 |
|
parent::init(); |
|
58
|
42 |
|
if ($this->enableIDN && !function_exists('idn_to_ascii')) { |
|
59
|
|
|
throw new InvalidConfigException('In order to use IDN validation intl extension must be installed and enabled.'); |
|
60
|
|
|
} |
|
61
|
42 |
|
if ($this->message === null) { |
|
62
|
42 |
|
$this->message = Yii::t('yii', '{attribute} is not a valid email address.'); |
|
63
|
|
|
} |
|
64
|
42 |
|
} |
|
65
|
|
|
|
|
66
|
|
|
/** |
|
67
|
|
|
* {@inheritdoc} |
|
68
|
|
|
*/ |
|
69
|
41 |
|
protected function validateValue($value) |
|
70
|
|
|
{ |
|
71
|
41 |
|
if (!is_string($value)) { |
|
72
|
1 |
|
$valid = false; |
|
73
|
41 |
|
} elseif (!preg_match('/^(?P<name>(?:"?([^"]*)"?\s)?)(?:\s+)?(?:(?P<open><?)((?P<local>.+)@(?P<domain>[^>]+))(?P<close>>?))$/i', $value, $matches)) { |
|
74
|
4 |
|
$valid = false; |
|
75
|
|
|
} else { |
|
76
|
39 |
|
if ($this->enableIDN) { |
|
77
|
18 |
|
$matches['local'] = $this->idnToAscii($matches['local']); |
|
78
|
18 |
|
$matches['domain'] = $this->idnToAscii($matches['domain']); |
|
79
|
18 |
|
$value = $matches['name'] . $matches['open'] . $matches['local'] . '@' . $matches['domain'] . $matches['close']; |
|
80
|
|
|
} |
|
81
|
|
|
|
|
82
|
39 |
|
if (strlen($matches['local']) > 64) { |
|
83
|
|
|
// The maximum total length of a user name or other local-part is 64 octets. RFC 5322 section 4.5.3.1.1 |
|
84
|
|
|
// http://tools.ietf.org/html/rfc5321#section-4.5.3.1.1 |
|
85
|
1 |
|
$valid = false; |
|
86
|
39 |
|
} elseif (strlen($matches['local'] . '@' . $matches['domain']) > 254) { |
|
87
|
|
|
// There is a restriction in RFC 2821 on the length of an address in MAIL and RCPT commands |
|
88
|
|
|
// of 254 characters. Since addresses that do not fit in those fields are not normally useful, the |
|
89
|
|
|
// upper limit on address lengths should normally be considered to be 254. |
|
90
|
|
|
// |
|
91
|
|
|
// Dominic Sayers, RFC 3696 erratum 1690 |
|
92
|
|
|
// http://www.rfc-editor.org/errata_search.php?eid=1690 |
|
93
|
1 |
|
$valid = false; |
|
94
|
|
|
} else { |
|
95
|
39 |
|
$valid = preg_match($this->pattern, $value) || $this->allowName && preg_match($this->fullPattern, $value); |
|
96
|
39 |
|
if ($valid && $this->checkDNS) { |
|
97
|
1 |
|
$valid = checkdnsrr($matches['domain'] . '.', 'MX') || checkdnsrr($matches['domain'] . '.', 'A'); |
|
98
|
|
|
} |
|
99
|
|
|
} |
|
100
|
|
|
} |
|
101
|
|
|
|
|
102
|
41 |
|
return $valid ? null : [$this->message, []]; |
|
103
|
|
|
} |
|
104
|
|
|
|
|
105
|
18 |
|
private function idnToAscii($idn) |
|
106
|
|
|
{ |
|
107
|
18 |
|
if (PHP_VERSION_ID < 50600) { |
|
108
|
|
|
// TODO: drop old PHP versions support |
|
109
|
|
|
return idn_to_ascii($idn); |
|
110
|
|
|
} |
|
111
|
|
|
|
|
112
|
18 |
|
return idn_to_ascii($idn, 0, INTL_IDNA_VARIANT_UTS46); |
|
113
|
|
|
} |
|
114
|
|
|
} |
|
115
|
|
|
|
yiisoft /
yii2
