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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; |
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/** |
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* a class to encode or decode Query and Fragment components |
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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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class Transcoder |
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{ |
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const REGEXP_CHARACTERS_RESERVED = "/(?:[^\!\$&'\(\)\*\+,;\=\:\?\/@%]+|%(?![A-Fa-f0-9]{2}))/S"; |
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const REGEXP_CHARACTERS_ENCODED = ',%(?<encode>[0-9a-fA-F]{2}),'; |
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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 $subject |
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* |
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* @return string |
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*/ |
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public function encode($subject) |
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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(self::REGEXP_CHARACTERS_RESERVED, $encoder, $subject); |
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return preg_replace_callback(self::REGEXP_CHARACTERS_ENCODED, $formatter, $subject); |
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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 $subject |
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* |
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* @return string |
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*/ |
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public function decode($subject) |
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{ |
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return preg_replace_callback(self::REGEXP_CHARACTERS_ENCODED, function ($matches) { |
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$decode = chr(hexdec($matches['encode'])); |
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if (preg_match('/[\w|\._~]+/', $decode)) { |
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return strtoupper($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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}, $this->encode($subject)); |
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} |
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} |
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thephpleague /
uri
