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<?php |
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namespace Kontrolio\Rules\Core; |
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use Kontrolio\Rules\AbstractRule; |
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/** |
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* IP address validation rule. |
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* |
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* @package Kontrolio\Rules\Core |
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*/ |
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class Ip extends AbstractRule |
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{ |
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const V4 = '4'; |
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const V6 = '6'; |
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const ALL = 'all'; |
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// adds FILTER_FLAG_NO_PRIV_RANGE flag (skip private ranges) |
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const V4_NO_PRIV = '4_no_priv'; |
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const V6_NO_PRIV = '6_no_priv'; |
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const ALL_NO_PRIV = 'all_no_priv'; |
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// adds FILTER_FLAG_NO_RES_RANGE flag (skip reserved ranges) |
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const V4_NO_RES = '4_no_res'; |
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const V6_NO_RES = '6_no_res'; |
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const ALL_NO_RES = 'all_no_res'; |
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// adds FILTER_FLAG_NO_PRIV_RANGE and FILTER_FLAG_NO_RES_RANGE flags (skip both) |
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const V4_ONLY_PUBLIC = '4_public'; |
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const V6_ONLY_PUBLIC = '6_public'; |
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const ALL_ONLY_PUBLIC = 'all_public'; |
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/** |
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* IP version flag. |
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* |
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* @var int |
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*/ |
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protected $version; |
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/** |
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* Ip constructor. |
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* |
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* @param string $version |
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*/ |
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public function __construct($version = self::V4) |
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{ |
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$this->version = $version; |
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} |
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/** |
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* Validates input. |
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* |
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* @param mixed $input |
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* |
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* @return bool |
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*/ |
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public function isValid($input = null) |
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{ |
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if ($input === null || $input === '') { |
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return false; |
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} |
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$input = (string) $input; |
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if (!filter_var($input, FILTER_VALIDATE_IP, $this->getFlag())) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* Returns IP filter flag. |
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* |
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* @return int|null |
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*/ |
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protected function getFlag() |
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{ |
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switch ($this->version) { |
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case static::V4: |
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return FILTER_FLAG_IPV4; |
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case static::V6: |
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return FILTER_FLAG_IPV6; |
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case static::V4_NO_PRIV: |
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return FILTER_FLAG_IPV4 | FILTER_FLAG_NO_PRIV_RANGE; |
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case static::V6_NO_PRIV: |
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return FILTER_FLAG_IPV6 | FILTER_FLAG_NO_PRIV_RANGE; |
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case static::ALL_NO_PRIV: |
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return FILTER_FLAG_NO_PRIV_RANGE; |
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case static::V4_NO_RES: |
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return FILTER_FLAG_IPV4 | FILTER_FLAG_NO_RES_RANGE; |
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case static::V6_NO_RES: |
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return FILTER_FLAG_IPV6 | FILTER_FLAG_NO_RES_RANGE; |
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case static::ALL_NO_RES: |
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return FILTER_FLAG_NO_RES_RANGE; |
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case static::V4_ONLY_PUBLIC: |
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return FILTER_FLAG_IPV4 | FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE; |
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case static::V6_ONLY_PUBLIC: |
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return FILTER_FLAG_IPV6 | FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE; |
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case static::ALL_ONLY_PUBLIC: |
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return FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE; |
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default: |
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return null; |
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} |
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} |
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} |
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franzose /
kontrolio
Loading history...
This check looks for assignments to scalar types that may be of the wrong type.
To ensure the code behaves as expected, it may be a good idea to add an explicit type cast.