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<?php |
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|
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/** |
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* IP address handler for validating and normalizing IP addresses |
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*/ |
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class Redirection_IP { |
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/** |
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* Validated and normalized IP address |
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* |
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* @var string |
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*/ |
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private $ip = ''; |
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|
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/** |
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* Constructor. Validates and normalizes an IP address |
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* |
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* @param string $ip IP address to validate (may be comma-separated list, first value will be used). |
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*/ |
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public function __construct( $ip = '' ) { |
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$ip = sanitize_text_field( $ip ); |
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$ip = explode( ',', $ip ); |
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$ip = array_shift( $ip ); |
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$ip = filter_var( $ip, FILTER_VALIDATE_IP ); |
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if ( $ip === false ) { |
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return; |
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} |
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|
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// Convert to binary |
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// phpcs:ignore |
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$ip = @inet_pton( trim( $ip ) ); |
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if ( $ip !== false ) { |
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// phpcs:ignore |
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$ip = @inet_ntop( $ip ); // Convert back to string; |
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if ( $ip === false ) { |
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return; |
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} |
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|
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$this->ip = $ip; |
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} |
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} |
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|
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/** |
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* Get the validated IP address |
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* |
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* @return string Validated IP address, or empty string if invalid. |
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*/ |
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public function get() { |
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return $this->ip; |
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} |
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} |
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|
