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<?php |
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/** |
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* Copyright 2016 Alexandru Guzinschi <[email protected]>. |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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*/ |
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namespace Gentle\Embeddable\Network; |
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use Gentle\Embeddable\Embeddable; |
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/** |
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* @author Alexandru Guzinschi <[email protected]> |
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*/ |
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final class Ip extends Embeddable |
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{ |
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/** @var int */ |
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private $version = 4; |
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/** |
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* @param string $value |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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public function __construct($value) |
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{ |
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if (false === filter_var($value, FILTER_VALIDATE_IP)) { |
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throw new \InvalidArgumentException('Invalid IP address.'); |
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} |
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$this->value = (string)$value; |
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if (false !== filter_var($value, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) { |
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$this->version = 6; |
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$this->value = $this->getCondensed(); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function equals(Embeddable $object) |
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{ |
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return get_class($object) === 'Gentle\Embeddable\Network\Ip' && $this->value === (string)$object; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __toString() |
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{ |
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return $this->value; |
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} |
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/** |
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* @access public |
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* @return int |
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*/ |
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public function getVersion() |
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{ |
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return $this->version; |
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} |
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/** |
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* @access public |
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* @return string |
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*/ |
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public function getExpanded() |
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{ |
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if ($this->version === 4) { |
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return $this->value; |
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} |
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$hex = unpack('H*hex', $this->toBinary()); |
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return strtolower(substr(preg_replace('/([a-fA-F0-9]{4})/', '$1:', $hex['hex']), 0, -1)); |
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} |
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/** |
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* All leading zeros are removed. |
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* |
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* @access public |
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* @return string |
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*/ |
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public function getAlternate() |
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{ |
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if ($this->version === 4) { |
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return $this->value; |
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} |
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return preg_replace('/(^|:)0+(\d)/', '\1\2', $this->getExpanded()); |
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} |
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/** |
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* All consecutive sections of zeroes are removed. |
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* |
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* @access public |
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* @return string |
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*/ |
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public function getCondensed() |
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{ |
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if ($this->version === 4) { |
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return $this->value; |
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} |
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$addr = preg_replace('/(^|:)0+(\d)/', '\1\2', $this->getExpanded()); |
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if (preg_match_all('/(?:^|:)(?:0(?::|$))+/', $addr, $matches, PREG_OFFSET_CAPTURE)) { |
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$max = 0; |
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$pos = null; |
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foreach ($matches[0] as $match) { |
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if (strlen($match[0]) > $max) { |
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$max = mb_strlen($match[0]); |
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$pos = $match[1]; |
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} |
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} |
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$addr = substr_replace($addr, '::', $pos, $max); |
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} |
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return $addr; |
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} |
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/** |
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* @access public |
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* @return string |
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*/ |
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public function toLong() |
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{ |
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if ($this->version === 4) { |
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return sprintf('%u', ip2long($this->value)); |
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} |
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$octet = 16 - 1; |
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$long = 0; |
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foreach (unpack('C*', inet_pton($this->value)) as $char) { |
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$long = bcadd($long, bcmul($char, bcpow(256, $octet--))); |
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} |
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return $long; |
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} |
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/** |
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* @access public |
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* @return string |
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*/ |
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public function toHex() |
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{ |
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return '0x'.unpack('H*hex', inet_pton($this->value))['hex']; |
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} |
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/** |
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* @access public |
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* @return string |
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*/ |
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public function toBinary() |
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{ |
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if ($this->version === 4) { |
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return str_pad( |
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current(unpack('a4', inet_pton($this->value))), |
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16, |
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"\0", |
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STR_PAD_LEFT |
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); |
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} |
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return current(unpack('a16', inet_pton($this->value))); |
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} |
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} |
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gentlero /
embeddables
