Passed
Pull Request — master (#11)
by
unknown
01:40
created

DnsHelper::checkForEmail()   A

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
1
<?php
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namespace Yiisoft\NetworkUtilities;
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class DnsHelper
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{
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    /**
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     * @param string $hostname hostname without dot at end
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     */
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    public static function checkMx(string $hostname): bool
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    {
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        $hostname .= '.';
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        try {
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            if (!@dns_check_record($hostname, 'MX')) {
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                return false;
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            }
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            $result = @dns_get_record($hostname, DNS_MX);
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            return $result !== false && count($result) > 0;
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        } catch (\Throwable $t) {
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20
        }
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        return false;
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    }
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    public static function checkA(string $hostname): bool
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    {
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        try {
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            if (!@dns_check_record($hostname, 'A')) {
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                return false;
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            }
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            $result = @dns_get_record($hostname, DNS_A);
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            return $result !== false && count($result) > 0;
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        } catch (\Throwable $t) {
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        }
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        return false;
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    }
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    public static function checkForEmail(string $hostnameOrEmail): bool
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    {
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        if (strpos($hostnameOrEmail, '@') !== false) {
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            [$void, $hostnameOrEmail] = explode('@', $hostnameOrEmail, 2);
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        }
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        return self::checkMx($hostnameOrEmail) || self::checkA($hostnameOrEmail);
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    }
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}