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<?php |
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namespace Subreality\Dilmun\Anshar\Http\UriParts; |
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/** |
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* Class Port |
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* @package Subreality\Dilmun\Anshar\Http\UriParts |
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*/ |
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class Port implements UriPartInterface |
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{ |
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protected $port = null; |
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/** |
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* Port constructor. Accepts an integer or null value representing a URI port component. Construction will throw an |
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* exception if port is not an integer or is not null or if the given integer is outside of the allowed TCP/UDP |
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* range of 1 to 65535. |
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* |
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* port = *DIGIT |
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* |
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* @see https://tools.ietf.org/html/rfc3986#appendix-A |
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* |
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* @throws \InvalidArgumentException if the given port is not an integer or null or if the given integer is out of |
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* range |
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* |
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* @param int|null $port A string representing a URI port |
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*/ |
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public function __construct($port) |
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{ |
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if (!is_int($port) && !is_null($port)) { |
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throw new \InvalidArgumentException("Port must be an integer or null"); |
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} elseif (!self::isValid($port)) { |
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throw new \InvalidArgumentException("Port must be between 1 and 65535 inclusive"); |
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} |
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$this->port = $port; |
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} |
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/** |
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* Returns a string representation of the port. |
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* |
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* @return string The string representation of the port |
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*/ |
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public function __toString() |
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{ |
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return (string) $this->port; |
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} |
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/** |
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* Validates a given port. A port is valid if it is either null or an integer between 1 and 65535 inclusive. |
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* |
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* @param mixed $port The port to be validated |
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* @return bool Returns true if the given port is valid |
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* Returns false otherwise |
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*/ |
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public static function isValid($port) |
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{ |
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$port_valid = false; |
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if (is_int($port)) { |
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$port_valid = self::portIsInValidRange($port); |
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} elseif (is_null($port)) { |
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$port_valid = true; |
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} |
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return $port_valid; |
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} |
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/** |
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* Returns a string representation of the port formatted so that it can be compiled into a complete URI string |
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* per the Uri object's string specification. |
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* |
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* If the port is empty, toUriString returns an empty string; if the port is not empty, toUriString returns the |
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* port prefixed with a colon. |
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* |
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* @see Uri::__toString |
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* |
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* @return string A string representation of the port formatted for a complete URI string |
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*/ |
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public function toUriString() |
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{ |
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$uri_string = (string) $this->port; |
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if (!is_null($this->port)) { |
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$uri_string = ":" . $uri_string; |
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} |
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return $uri_string; |
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} |
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/** |
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* Validates whether a given port falls within the range of valid ports for TCP/UDP (1 to 65535) |
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* |
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* @param int $port The port to be validated |
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* |
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* @return bool Returns true if the port falls within the valid range |
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* Returns false otherwise |
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*/ |
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private static function portIsInValidRange($port) |
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{ |
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if ($port > 0 && $port < 65536) { |
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return true; |
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} else { |
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return false; |
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} |
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} |
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} |
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twistofreality /
dilmun
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