added predis and eseye back in.
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122
vendor/web-token/jwt-encryption/Serializer/CompactSerializer.php
vendored
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122
vendor/web-token/jwt-encryption/Serializer/CompactSerializer.php
vendored
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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) 2014-2020 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\Encryption\Serializer;
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use Base64Url\Base64Url;
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use function count;
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use InvalidArgumentException;
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use Jose\Component\Core\Util\JsonConverter;
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use Jose\Component\Encryption\JWE;
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use Jose\Component\Encryption\Recipient;
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use LogicException;
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use Throwable;
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final class CompactSerializer implements JWESerializer
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{
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public const NAME = 'jwe_compact';
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public function displayName(): string
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{
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return 'JWE Compact';
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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(JWE $jwe, ?int $recipientIndex = null): string
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{
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if (null === $recipientIndex) {
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$recipientIndex = 0;
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}
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$recipient = $jwe->getRecipient($recipientIndex);
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$this->checkHasNoAAD($jwe);
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$this->checkHasSharedProtectedHeader($jwe);
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$this->checkRecipientHasNoHeader($jwe, $recipientIndex);
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return sprintf(
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'%s.%s.%s.%s.%s',
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$jwe->getEncodedSharedProtectedHeader(),
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Base64Url::encode(null === $recipient->getEncryptedKey() ? '' : $recipient->getEncryptedKey()),
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Base64Url::encode(null === $jwe->getIV() ? '' : $jwe->getIV()),
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Base64Url::encode($jwe->getCiphertext()),
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Base64Url::encode(null === $jwe->getTag() ? '' : $jwe->getTag())
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);
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}
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/**
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* @throws InvalidArgumentException if the input is not supported
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*/
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public function unserialize(string $input): JWE
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{
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$parts = explode('.', $input);
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if (5 !== count($parts)) {
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throw new InvalidArgumentException('Unsupported input');
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}
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try {
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$encodedSharedProtectedHeader = $parts[0];
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$sharedProtectedHeader = JsonConverter::decode(Base64Url::decode($encodedSharedProtectedHeader));
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$encryptedKey = '' === $parts[1] ? null : Base64Url::decode($parts[1]);
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$iv = Base64Url::decode($parts[2]);
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$ciphertext = Base64Url::decode($parts[3]);
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$tag = Base64Url::decode($parts[4]);
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return new JWE(
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$ciphertext,
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$iv,
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$tag,
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null,
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[],
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$sharedProtectedHeader,
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$encodedSharedProtectedHeader,
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[new Recipient([], $encryptedKey)]
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);
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} catch (Throwable $throwable) {
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throw new InvalidArgumentException('Unsupported input', $throwable->getCode(), $throwable);
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}
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}
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/**
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* @throws LogicException if the AAD is invalid
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*/
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private function checkHasNoAAD(JWE $jwe): void
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{
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if (null !== $jwe->getAAD()) {
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throw new LogicException('This JWE has AAD and cannot be converted into Compact JSON.');
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}
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}
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/**
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* @throws LogicException if the JWE has a shared header or recipient header (invalid for compact JSON)
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*/
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private function checkRecipientHasNoHeader(JWE $jwe, int $id): void
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{
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if (0 !== count($jwe->getSharedHeader()) || 0 !== count($jwe->getRecipient($id)->getHeader())) {
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throw new LogicException('This JWE has shared header parameters or recipient header parameters and cannot be converted into Compact JSON.');
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}
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}
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/**
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* @throws LogicException if the JWE has no shared protected header (invalid for compact JSON)
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*/
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private function checkHasSharedProtectedHeader(JWE $jwe): void
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{
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if (0 === count($jwe->getSharedProtectedHeader())) {
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throw new LogicException('This JWE does not have shared protected header parameters and cannot be converted into Compact JSON.');
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}
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}
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}
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