|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Egulias\EmailValidator\Validation; |
|
4
|
|
|
|
|
5
|
|
|
use Egulias\EmailValidator\EmailLexer; |
|
6
|
|
|
use Egulias\EmailValidator\Exception\InvalidEmail; |
|
7
|
|
|
use Egulias\EmailValidator\Warning\NoDNSMXRecord; |
|
8
|
|
|
use Egulias\EmailValidator\Exception\NoDNSRecord; |
|
9
|
|
|
|
|
10
|
|
|
class DNSCheckValidation implements EmailValidation |
|
11
|
|
|
{ |
|
12
|
|
|
/** |
|
13
|
|
|
* @var array |
|
14
|
|
|
*/ |
|
15
|
|
|
private $warnings = []; |
|
16
|
|
|
|
|
17
|
|
|
/** |
|
18
|
|
|
* @var InvalidEmail |
|
19
|
|
|
*/ |
|
20
|
|
|
private $error; |
|
21
|
|
|
|
|
22
|
12 |
|
public function __construct() |
|
23
|
|
|
{ |
|
24
|
12 |
|
if (!extension_loaded('intl')) { |
|
25
|
|
|
throw new \LogicException(sprintf('The %s class requires the Intl extension.', __CLASS__)); |
|
26
|
|
|
} |
|
27
|
12 |
|
} |
|
28
|
|
|
|
|
29
|
12 |
|
public function isValid($email, EmailLexer $emailLexer) |
|
30
|
|
|
{ |
|
31
|
|
|
// use the input to check DNS if we cannot extract something similar to a domain |
|
32
|
12 |
|
$host = $email; |
|
33
|
|
|
|
|
34
|
|
|
// Arguable pattern to extract the domain. Not aiming to validate the domain nor the email |
|
35
|
12 |
|
if (false !== $lastAtPos = strrpos($email, '@')) { |
|
36
|
11 |
|
$host = substr($email, $lastAtPos + 1); |
|
37
|
11 |
|
} |
|
38
|
|
|
|
|
39
|
12 |
|
return $this->checkDNS($host); |
|
40
|
|
|
} |
|
41
|
|
|
|
|
42
|
1 |
|
public function getError() |
|
43
|
|
|
{ |
|
44
|
1 |
|
return $this->error; |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
1 |
|
public function getWarnings() |
|
48
|
|
|
{ |
|
49
|
1 |
|
return $this->warnings; |
|
50
|
|
|
} |
|
51
|
|
|
|
|
52
|
12 |
|
protected function checkDNS($host) |
|
53
|
|
|
{ |
|
54
|
12 |
|
$variant = INTL_IDNA_VARIANT_2003; |
|
55
|
12 |
|
if ( defined('INTL_IDNA_VARIANT_UTS46') ) { |
|
56
|
12 |
|
$variant = INTL_IDNA_VARIANT_UTS46; |
|
57
|
12 |
|
} |
|
58
|
12 |
|
$host = rtrim(idn_to_ascii($host, IDNA_DEFAULT, $variant), '.') . '.'; |
|
59
|
|
|
|
|
60
|
12 |
|
$Aresult = true; |
|
61
|
12 |
|
$MXresult = checkdnsrr($host, 'MX'); |
|
62
|
|
|
|
|
63
|
12 |
|
if (!$MXresult) { |
|
64
|
11 |
|
$this->warnings[NoDNSMXRecord::CODE] = new NoDNSMXRecord(); |
|
65
|
11 |
|
$Aresult = checkdnsrr($host, 'A') || checkdnsrr($host, 'AAAA'); |
|
66
|
11 |
|
if (!$Aresult) { |
|
67
|
3 |
|
$this->error = new NoDNSRecord(); |
|
68
|
3 |
|
} |
|
69
|
11 |
|
} |
|
70
|
12 |
|
return $MXresult || $Aresult; |
|
71
|
|
|
} |
|
72
|
|
|
} |
|
73
|
|
|
|
egulias /
EmailValidator
