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<?php |
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declare(strict_types=1); |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2017 Spomky-Labs |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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*/ |
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namespace Jose\Component\Core; |
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use Base64Url\Base64Url; |
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/** |
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* Class JWK. |
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*/ |
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final class JWK implements \JsonSerializable |
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{ |
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/** |
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* @var array |
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*/ |
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private $values = []; |
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/** |
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* JWK constructor. |
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* |
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* @param array $values |
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*/ |
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private function __construct(array $values) |
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{ |
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$this->values = $values; |
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} |
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/** |
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* @param array $values |
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* |
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* @return JWK |
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*/ |
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public static function create(array $values): self |
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{ |
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if (!array_key_exists('kty', $values)) { |
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throw new \InvalidArgumentException('The parameter "kty" is mandatory.'); |
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} |
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return new self($values); |
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} |
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/** |
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* @param string $json |
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* |
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* @return JWK |
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*/ |
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public static function createFromJson(string $json): self |
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{ |
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$data = json_decode($json, true); |
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if (!is_array($data)) { |
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throw new \InvalidArgumentException('Invalid argument.'); |
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} |
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return self::create($data); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function jsonSerialize() |
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{ |
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return $this->values; |
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} |
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/** |
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* Get the value with a specific key. |
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* |
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* @param string $key The key |
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* |
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* @throws \InvalidArgumentException |
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* |
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* @return mixed|null The value |
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*/ |
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public function get(string $key) |
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{ |
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if (!$this->has($key)) { |
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throw new \InvalidArgumentException(sprintf('The value identified by "%s" does not exist.', $key)); |
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} |
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return $this->values[$key]; |
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} |
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/** |
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* Returns true if the JWK has the value identified by. |
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* |
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* @param string $key The key |
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* |
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* @return bool |
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*/ |
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public function has(string $key): bool |
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{ |
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return array_key_exists($key, $this->values); |
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} |
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/** |
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* Get all values stored in the JWK object. |
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* |
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* @return array Values of the JWK object |
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*/ |
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public function all(): array |
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{ |
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return $this->values; |
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} |
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/** |
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* Returns the thumbprint of the key. |
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* |
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* @see https://tools.ietf.org/html/rfc7638 |
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* |
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* @param string $hash_algorithm |
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* |
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* @throws \InvalidArgumentException |
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* |
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* @return string |
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*/ |
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public function thumbprint(string $hash_algorithm): string |
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{ |
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if (!in_array($hash_algorithm, hash_algos())) { |
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throw new \InvalidArgumentException(sprintf('The hash algorithm "%s" is not supported.', $hash_algorithm)); |
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} |
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$values = array_intersect_key($this->values, array_flip(['kty', 'n', 'e', 'crv', 'x', 'y', 'k'])); |
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ksort($values); |
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$input = json_encode($values, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE); |
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return Base64Url::encode(hash($hash_algorithm, $input, true)); |
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} |
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/** |
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* @return JWK |
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*/ |
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public function toPublic(): self |
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{ |
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$values = array_diff_key($this->values, array_flip(['p', 'd', 'q', 'dp', 'dq', 'qi'])); |
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return new self($values); |
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} |
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} |
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web-token /
jwt-framework
