IP.php
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IP.php
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	<?php
	declare(strict_types=1);

	namespace Keruald\OmniTools\Network;

	use InvalidArgumentException;

	abstract class IP {

	///
	/// Helper methods
	///

	public static function isIP (string $ip) : bool {
	return self::isIPv4($ip) \|\| self::isIPv6($ip);
	}

	public static function isIPv4 (string $ip) : bool {
	return filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) !== false;
	}

	public static function isIPv6 (string $ip) : bool {
	return filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) !== false;
	}

	public static function isLoopback (string $ip) : bool {
	$ranges = IPRange::getLoopbackRanges();
	foreach ($ranges as $range) {
	if ($range->contains($ip)) {
	return true;
	}
	}

	return false;
	}

	///
	/// Constructor
	///

	public static function from (string $ip) : IP {
	if (self::isIPv4($ip)) {
	return new IPv4($ip);
	}

	if (self::isIPv6($ip)) {
	$ipv6 = new IPv6($ip);
	$ipv6->normalize();
	return $ipv6;
	}

	throw new InvalidArgumentException;
	}

	public abstract function __toString () : string;

	public abstract function getDomain () : int;

	}