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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) 2014-2019 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 InvalidArgumentException; |
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use Jose\Component\Core\Util\JsonConverter; |
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use Jose\Component\Signature\JWS; |
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final class JSONFlattenedSerializer extends Serializer |
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{ |
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public const NAME = 'jws_json_flattened'; |
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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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public function name(): string |
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{ |
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return self::NAME; |
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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->getEncodedProtectedHeader(), |
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'header' => $signature->getHeader(), |
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]; |
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$encodedPayload = $jws->getEncodedPayload(); |
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if (null !== $encodedPayload && '' !== $encodedPayload) { |
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$data['payload'] = $encodedPayload; |
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} |
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$encodedProtectedHeader = $signature->getEncodedProtectedHeader(); |
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if (null !== $encodedProtectedHeader && '' !== $encodedProtectedHeader) { |
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$data['protected'] = $encodedProtectedHeader; |
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} |
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$header = $signature->getHeader(); |
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if (0 !== \count($header)) { |
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$data['header'] = $header; |
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} |
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$data['signature'] = Base64Url::encode($signature->getSignature()); |
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return JsonConverter::encode($data); |
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} |
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/** |
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* @throws InvalidArgumentException if the input is not supported |
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* @throws InvalidArgumentException if the JWS header is invalid |
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*/ |
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public function unserialize(string $input): JWS |
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{ |
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$data = JsonConverter::decode($input); |
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if (!\is_array($data)) { |
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throw new InvalidArgumentException('Unsupported input.'); |
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} |
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if (!isset($data['signature'])) { |
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throw new InvalidArgumentException('Unsupported input.'); |
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} |
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$signature = Base64Url::decode($data['signature']); |
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if (isset($data['protected'])) { |
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$encodedProtectedHeader = $data['protected']; |
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$protectedHeader = JsonConverter::decode(Base64Url::decode($data['protected'])); |
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} else { |
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$encodedProtectedHeader = null; |
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$protectedHeader = []; |
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} |
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if (isset($data['header'])) { |
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if (!\is_array($data['header'])) { |
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throw new InvalidArgumentException('Bad header.'); |
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} |
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$header = $data['header']; |
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} else { |
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$header = []; |
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} |
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if (isset($data['payload'])) { |
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$encodedPayload = $data['payload']; |
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$payload = $this->isPayloadEncoded($protectedHeader) ? 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 = new JWS($payload, $encodedPayload, null === $encodedPayload); |
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return $jws->addSignature($signature, $protectedHeader, $encodedProtectedHeader, $header); |
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} |
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} |
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web-token /
jwt-framework
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.