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<?php |
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/** |
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* League.Uri (http://uri.thephpleague.com) |
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* |
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* @package League.uri |
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* @author Ignace Nyamagana Butera <[email protected]> |
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* @copyright 2013-2015 Ignace Nyamagana Butera |
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* @license https://github.com/thephpleague/uri/blob/master/LICENSE (MIT License) |
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* @version 4.2.0 |
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* @link https://github.com/thephpleague/uri/ |
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*/ |
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namespace League\Uri\Types; |
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/** |
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* Uri Parameter validation |
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* |
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* @package League.uri |
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* @author Ignace Nyamagana Butera <[email protected]> |
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* @since 4.2.0 |
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*/ |
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trait TranscoderTrait |
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{ |
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protected static $pathRegexp = "/(?:[^\!\$&'\(\)\*\+,;\=\:\/@%]+|%(?![A-Fa-f0-9]{2}))/S"; |
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protected static $queryFragmentRegexp = "/(?:[^\!\$&'\(\)\*\+,;\=\:\/@%\?]+|%(?![A-Fa-f0-9]{2}))/S"; |
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protected static $encodedRegexp = ',%(?<encode>[0-9a-fA-F]{2}),'; |
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protected static $unreservedRegexp = '/[\w\.~]+/'; |
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/** |
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* Reserved characters list |
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* |
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* @var string |
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*/ |
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protected static $reservedCharactersRegex = "\!\$&'\(\)\*\+,;\=\:"; |
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/** |
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* Encode a string according to RFC3986 Rules |
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* |
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* @param string $subject |
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* |
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* @return string |
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*/ |
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protected static function encodeQueryFragment($subject) |
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{ |
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return self::encodeComponent($subject, self::$queryFragmentRegexp); |
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} |
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/** |
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* Encode a component string |
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* |
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* @param string $subject The string to encode |
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* @param string $regexp The component specific regular expression |
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* |
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* @return string |
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*/ |
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protected static function encodeComponent($subject, $regexp) |
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{ |
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$encoder = function (array $matches) { |
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return rawurlencode($matches[0]); |
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}; |
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$formatter = function (array $matches) { |
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return strtoupper($matches[0]); |
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}; |
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$subject = preg_replace_callback($regexp, $encoder, $subject); |
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return preg_replace_callback(self::$encodedRegexp, $formatter, $subject); |
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} |
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/** |
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* Encoding string according to RFC3986 |
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* |
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* @param string $subject |
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* |
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* @return string |
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*/ |
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protected static function encode($subject) |
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{ |
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return self::encodeComponent( |
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$subject, |
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'/(?:[^'.static::$reservedCharactersRegex.']+|%(?![A-Fa-f0-9]{2}))/S' |
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); |
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} |
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/** |
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* Decode a string according to RFC3986 Rules |
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* |
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* @param string $subject |
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* |
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* @return string |
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*/ |
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protected static function decodeQueryFragment($subject) |
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{ |
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$decoder = function (array $matches) { |
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$decode = chr(hexdec($matches['encode'])); |
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if (preg_match(self::$unreservedRegexp, $decode)) { |
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return $matches[0]; |
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} |
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if (preg_match('/[\[\]\+\?:]+/', $decode)) { |
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return $decode; |
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} |
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return rawurldecode($matches[0]); |
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}; |
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return preg_replace_callback(self::$encodedRegexp, $decoder, self::encodeQueryFragment($subject)); |
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} |
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/** |
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* Encode a path string according to RFC3986 |
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* |
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* @param string $subject can be a string or an array |
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* |
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* @return string The same type as the input parameter |
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*/ |
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protected static function encodePath($subject) |
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{ |
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return self::encodeComponent($subject, self::$pathRegexp); |
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} |
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/** |
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* Decode a path string according to RFC3986 |
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* |
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* @param string $subject can be a string or an array |
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* |
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* @return string The same type as the input parameter |
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*/ |
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protected static function decodePath($subject) |
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{ |
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$decoder = function (array $matches) { |
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return rawurldecode($matches[0]); |
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}; |
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return preg_replace_callback(self::$pathRegexp, $decoder, $subject); |
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} |
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} |
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thephpleague /
uri
