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<?php |
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namespace RemotelyLiving\PHPDNS\Entities; |
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use RemotelyLiving\PHPDNS\Exceptions\InvalidArgumentException; |
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use function filter_var; |
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use function idn_to_ascii; |
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use function idn_to_utf8; |
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use function mb_strtolower; |
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use function substr; |
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use function trim; |
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final class Hostname extends EntityAbstract implements \Stringable |
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{ |
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private string $hostname; |
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/** |
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* @throws \RemotelyLiving\PHPDNS\Exceptions\InvalidArgumentException |
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*/ |
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public function __construct(string $hostname) |
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{ |
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$hostname = $this->normalizeHostName($hostname); |
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if (filter_var($hostname, FILTER_VALIDATE_DOMAIN) !== $hostname) { |
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throw new InvalidArgumentException("{$hostname} is not a valid hostname"); |
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} |
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$this->hostname = $hostname; |
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} |
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public function __toString(): string |
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{ |
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return $this->hostname; |
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} |
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public function equals(Hostname $hostname): bool |
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{ |
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return $this->hostname === (string)$hostname; |
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} |
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public static function createFromString(string $hostname): Hostname |
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{ |
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return new self($hostname); |
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} |
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public function getHostName(): string |
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{ |
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return $this->hostname; |
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} |
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public function getHostnameWithoutTrailingDot(): string |
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{ |
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return substr($this->hostname, 0, -1); |
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} |
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public function isPunycoded(): bool |
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{ |
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return $this->toUTF8() !== $this->hostname; |
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} |
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public function toUTF8(): string |
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{ |
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return (string)idn_to_utf8($this->hostname, IDNA_ERROR_PUNYCODE, INTL_IDNA_VARIANT_UTS46); |
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} |
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private static function punyCode(string $hostname): string |
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{ |
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return (string)idn_to_ascii($hostname, IDNA_ERROR_PUNYCODE, INTL_IDNA_VARIANT_UTS46); |
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} |
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private function normalizeHostName(string $hostname): string |
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{ |
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$hostname = self::punyCode(mb_strtolower(trim($hostname))); |
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if (!str_ends_with($hostname, '.')) { |
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return "{$hostname}."; |
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} |
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return $hostname; |
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} |
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} |
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remotelyliving /
php-dns
