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<?php |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2015 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\Finder; |
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/** |
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*/ |
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final class JWKFinderManager implements JWKFinderManagerInterface |
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{ |
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/** |
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* @var \Jose\Finder\JWKFinderInterface[] |
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*/ |
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private $finders = []; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function addJWKFinder(JWKFinderInterface $finder) |
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{ |
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$this->finders[] = $finder; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function findJWK(array $header, $key_type) |
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{ |
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$keys = ['keys' => []]; |
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foreach ($this->finders as $finder) { |
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$result = $finder->findJWK($header); |
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if (is_array($result)) { |
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$this->addKey($keys, $result, $key_type); |
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} |
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} |
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return $keys; |
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} |
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/** |
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* @param array $keys |
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* @param array $result |
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* @param int $key_type |
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*/ |
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private function addKey(array &$keys, array $result, $key_type) |
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{ |
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if (array_key_exists('keys', $result)) { |
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foreach ($result['keys'] as $key) { |
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$this->addKey($keys, $key, $key_type); |
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} |
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} else { |
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if (true === $this->isKeySearched($result, $key_type)) { |
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$keys['keys'][] = $result; |
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} |
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} |
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} |
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/** |
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* @param array $key |
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* @param int $key_type |
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* |
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* @return bool |
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*/ |
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private function isKeySearched(array $key, $key_type) |
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{ |
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if ($key_type & self::KEY_TYPE_DIRECT && true === $this->isDirectKey($key)) { |
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return true; |
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} |
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if ($key_type & self::KEY_TYPE_NONE && true === $this->isNoneKey($key)) { |
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return true; |
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} |
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if ($key_type & self::KEY_TYPE_SYMMETRIC && true === $this->isSymmetricKey($key)) { |
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return true; |
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} |
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if ($key_type & self::KEY_TYPE_PUBLIC && true === $this->isPublicKey($key)) { |
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return true; |
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} |
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if ($key_type & self::KEY_TYPE_PRIVATE && true === $this->isPrivateKey($key)) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* @param array $key |
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* |
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* @return bool |
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*/ |
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private function isDirectKey(array $key) |
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{ |
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return array_key_exists('kty', $key) && 'dir' === $key['kty']; |
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} |
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/** |
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* @param array $key |
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* |
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* @return bool |
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*/ |
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private function isNoneKey(array $key) |
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{ |
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return array_key_exists('kty', $key) && 'none' === $key['kty']; |
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} |
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/** |
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* @param array $key |
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* |
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* @return bool |
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*/ |
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private function isSymmetricKey(array $key) |
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{ |
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return array_key_exists('kty', $key) && 'oct' === $key['kty']; |
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} |
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/** |
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* @param array $key |
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* |
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* @return bool |
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*/ |
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private function isPrivateKey(array $key) |
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{ |
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if (!array_key_exists('kty', $key) || !in_array($key['kty'], ['RSA', 'EC'])) { |
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return false; |
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} |
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return array_key_exists('d', $key); |
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} |
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/** |
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* @param array $key |
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* |
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* @return bool |
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*/ |
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private function isPublicKey(array $key) |
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{ |
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if (!array_key_exists('kty', $key) || !in_array($key['kty'], ['RSA', 'EC'])) { |
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return false; |
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} |
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return !array_key_exists('d', $key); |
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} |
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} |
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Spomky-Labs /
jose
