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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\Signature\Serializer; |
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use Base64Url\Base64Url; |
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use Jose\Component\Core\Converter\JsonConverter; |
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use Jose\Component\Signature\JWS; |
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/** |
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* Class JSONGeneralSerializer. |
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*/ |
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final class JSONGeneralSerializer extends Serializer |
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{ |
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public const NAME = 'jws_json_general'; |
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/** |
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* @var JsonConverter |
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*/ |
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private $jsonConverter; |
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/** |
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* JSONFlattenedSerializer constructor. |
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* |
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* @param JsonConverter $jsonConverter |
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*/ |
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public function __construct(JsonConverter $jsonConverter) |
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{ |
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$this->jsonConverter = $jsonConverter; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function displayName(): string |
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{ |
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return 'JWS JSON General'; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function name(): string |
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{ |
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return self::NAME; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function serialize(JWS $jws, ?int $signatureIndex = null): string |
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{ |
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if (0 === $jws->countSignatures()) { |
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throw new \LogicException('No signature.'); |
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} |
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$data = []; |
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$this->checkPayloadEncoding($jws); |
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if (false === $jws->isPayloadDetached()) { |
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$data['payload'] = $jws->getEncodedPayload(); |
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} |
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$data['signatures'] = []; |
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foreach ($jws->getSignatures() as $signature) { |
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$tmp = ['signature' => Base64Url::encode($signature->getSignature())]; |
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$values = [ |
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'protected' => $signature->getEncodedProtectedHeaders(), |
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'header' => $signature->getHeaders(), |
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]; |
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foreach ($values as $key => $value) { |
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if (!empty($value)) { |
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$tmp[$key] = $value; |
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} |
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} |
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$data['signatures'][] = $tmp; |
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} |
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return $this->jsonConverter->encode($data); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function unserialize(string $input): JWS |
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{ |
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$data = $this->jsonConverter->decode($input); |
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if (!is_array($data) || !array_key_exists('signatures', $data)) { |
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throw new \InvalidArgumentException('Unsupported input.'); |
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} |
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$isPayloadEncoded = null; |
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$rawPayload = array_key_exists('payload', $data) ? $data['payload'] : null; |
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$signatures = []; |
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foreach ($data['signatures'] as $signature) { |
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if (!is_array($signature) || !array_key_exists('signature', $signature)) { |
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throw new \InvalidArgumentException('Unsupported input.'); |
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} |
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$encodedProtectedHeaders = array_key_exists('protected', $signature) ? $signature['protected'] : null; |
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$protectedHeaders = null !== $encodedProtectedHeaders ? $this->jsonConverter->decode(Base64Url::decode($encodedProtectedHeaders)) : []; |
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$signatures[] = [ |
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'signature' => Base64Url::decode($signature['signature']), |
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'protected' => $protectedHeaders, |
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'encoded_protected' => $encodedProtectedHeaders, |
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'header' => array_key_exists('header', $signature) ? $signature['header'] : [], |
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]; |
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if (null === $isPayloadEncoded) { |
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$isPayloadEncoded = self::isPayloadEncoded($protectedHeaders); |
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} |
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if ($this->isPayloadEncoded($protectedHeaders) !== $isPayloadEncoded) { |
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throw new \InvalidArgumentException('Foreign payload encoding detected.'); |
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} |
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} |
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if (null === $rawPayload) { |
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$payload = null; |
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} else { |
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$payload = false === $isPayloadEncoded ? $rawPayload : Base64Url::decode($rawPayload); |
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} |
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$jws = JWS::create($payload, $rawPayload); |
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foreach ($signatures as $signature) { |
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$jws = $jws->addSignature( |
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$signature['signature'], |
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$signature['protected'], |
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$signature['encoded_protected'], |
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$signature['header'] |
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); |
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} |
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return $jws; |
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} |
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/** |
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* @param JWS $jws |
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*/ |
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private function checkPayloadEncoding(JWS $jws) |
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{ |
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if ($jws->isPayloadDetached()) { |
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return; |
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} |
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$is_encoded = null; |
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foreach ($jws->getSignatures() as $signature) { |
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if (null === $is_encoded) { |
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$is_encoded = $this->isPayloadEncoded($signature->getProtectedHeaders()); |
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} |
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if (false === $jws->isPayloadDetached()) { |
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if ($is_encoded !== $this->isPayloadEncoded($signature->getProtectedHeaders())) { |
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throw new \LogicException('Foreign payload encoding detected.'); |
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} |
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} |
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} |
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} |
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} |
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web-token /
jwt-framework
