DnsHelper::checkForEmail() - Code Metrics - Inspection of "DnsHelper for email check #10" - yiisoft/network-utilities - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#11)

unknown

created 2019-11-06 11:04 UTC

DnsHelper::checkForEmail() A

↳ Parent: DnsHelper

Complexity

Conditions	3
Paths	4

Size

Total Lines	6
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	3

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	3
eloc	3
c	1
b	0
f	0
nc	4
nop	1
dl	0
loc	6
rs	10
ccs	4
cts	4
cp	1
crap	3

<?php

namespace Yiisoft\NetworkUtilities;

class DnsHelper
{
    /**
     * @param string $hostname hostname without dot at end
     * @link https://bugs.php.net/bug.php?id=78008
     */
    public static function checkMx(string $hostname): bool
    {
        $hostname = rtrim($hostname, '.') . '.';
        try {
            if (!@dns_check_record($hostname, 'MX')) {
                return false;
            }
            $result = @dns_get_record($hostname, DNS_MX);
            return $result !== false && count($result) > 0;
        } catch (\Throwable $t) {
            // eg. name servers are not found https://github.com/yiisoft/yii2/issues/17602
        }
        return false;
    }

    /**
     * @param string $hostname
     * @link https://bugs.php.net/bug.php?id=78008
     */
    public static function checkA(string $hostname): bool
    {
        try {
            if (!@dns_check_record($hostname, 'A')) {
                return false;
            }
            $result = @dns_get_record($hostname, DNS_A);
            return $result !== false && count($result) > 0;
        } catch (\Throwable $t) {
            // eg. name servers are not found https://github.com/yiisoft/yii2/issues/17602
        }
        return false;
    }

    public static function checkForEmail(string $hostnameOrEmail): bool
    {
        if (strpos($hostnameOrEmail, '@') !== false) {
            [$void, $hostnameOrEmail] = explode('@', $hostnameOrEmail, 2);
        }
        return self::checkMx($hostnameOrEmail) || self::checkA($hostnameOrEmail);
    }
}


1		<?php
2
3		namespace Yiisoft\NetworkUtilities;
4
5		class DnsHelper
6		{
7		/**
8		* @param string $hostname hostname without dot at end
9		* @link https://bugs.php.net/bug.php?id=78008
10		*/
11	2	public static function checkMx(string $hostname): bool
12		{
13	2	$hostname = rtrim($hostname, '.') . '.';
14		try {
15	2	if (!@dns_check_record($hostname, 'MX')) {
16	2	return false;
17		}
18	2	$result = @dns_get_record($hostname, DNS_MX);
19	2	return $result !== false && count($result) > 0;
20		} catch (\Throwable $t) {
21		// eg. name servers are not found https://github.com/yiisoft/yii2/issues/17602
22		}
23		return false;
24		}
25
26		/**
27		* @param string $hostname
28		* @link https://bugs.php.net/bug.php?id=78008
29		*/
30	2	public static function checkA(string $hostname): bool
31		{
32		try {
33	2	if (!@dns_check_record($hostname, 'A')) {
34	2	return false;
35		}
36	1	$result = @dns_get_record($hostname, DNS_A);
37	1	return $result !== false && count($result) > 0;
38		} catch (\Throwable $t) {
39		// eg. name servers are not found https://github.com/yiisoft/yii2/issues/17602
40		}
41		return false;
42		}
43
44	1	public static function checkForEmail(string $hostnameOrEmail): bool
45		{
46	1	if (strpos($hostnameOrEmail, '@') !== false) {
47	1	[$void, $hostnameOrEmail] = explode('@', $hostnameOrEmail, 2);
48		}
49	1	return self::checkMx($hostnameOrEmail) \|\| self::checkA($hostnameOrEmail);
50		}
51		}
52

yiisoft / network-utilities

Pull Request — master (#11)

DnsHelper::checkForEmail() A

Complexity

Size

Duplication

Code Coverage

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