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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\Signature\JWS; |
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/** |
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* Class JSONFlattenedSerializer. |
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*/ |
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final class JSONFlattenedSerializer extends AbstractSerializer |
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{ |
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public const NAME = 'jws_json_flattened'; |
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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 Flattened'; |
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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 (null === $signatureIndex) { |
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$signatureIndex = 0; |
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} |
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$signature = $jws->getSignature($signatureIndex); |
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$data = []; |
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$values = [ |
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'payload' => $jws->getEncodedPayload(), |
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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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$data[$key] = $value; |
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} |
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} |
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$data['signature'] = Base64Url::encode($signature->getSignature()); |
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return json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE); |
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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 = json_decode($input, true); |
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if (!is_array($data) || !array_key_exists('signature', $data)) { |
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throw new \InvalidArgumentException('Unsupported input.'); |
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} |
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$signature = Base64Url::decode($data['signature']); |
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if (array_key_exists('protected', $data)) { |
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$encodedProtectedHeaders = $data['protected']; |
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$protectedHeaders = json_decode(Base64Url::decode($data['protected']), true); |
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} else { |
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$encodedProtectedHeaders = null; |
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$protectedHeaders = []; |
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} |
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if (array_key_exists('header', $data)) { |
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if (!is_array($data['header'])) { |
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throw new \InvalidArgumentException('Bad header.'); |
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} |
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$headers = $data['header']; |
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} else { |
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$headers = []; |
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} |
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if (array_key_exists('payload', $data)) { |
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$encodedPayload = $data['payload']; |
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$payload = $this->isPayloadEncoded($protectedHeaders) ? Base64Url::decode($encodedPayload) : $encodedPayload; |
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} else { |
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$payload = null; |
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$encodedPayload = null; |
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} |
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$jws = JWS::create($payload, $encodedPayload, null === $encodedPayload); |
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$jws = $jws->addSignature($signature, $protectedHeaders, $encodedProtectedHeaders, $headers); |
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return $jws; |
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} |
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} |
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Spomky-Labs /
jose
