32 lines
803 B
PHP
32 lines
803 B
PHP
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<?php
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namespace DeliciousBrains\WP_Offload_Media\Aws3\Aws\Credentials;
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final class CredentialsUtils
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{
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/**
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* Determines whether a given host
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* is a loopback address.
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*
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* @param $host
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*
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* @return bool
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*/
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public static function isLoopBackAddress($host) : bool
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{
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if (!\filter_var($host, \FILTER_VALIDATE_IP)) {
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return \false;
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}
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if (\filter_var($host, \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV6)) {
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if ($host === '::1') {
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return \true;
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}
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return \false;
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}
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$loopbackStart = \ip2long('127.0.0.0');
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$loopbackEnd = \ip2long('127.255.255.255');
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$ipLong = \ip2long($host);
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return $ipLong >= $loopbackStart && $ipLong <= $loopbackEnd;
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}
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}
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