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.github
Algorithm
Serializer
CompactSerializer.php
JSONFlattenedSerializer.php
JSONGeneralSerializer.php
JWSSerializer.php
JWSSerializerManager.php
JWSSerializerManagerFactory.php
Serializer.php
JWS.php
JWSBuilder.php
JWSBuilderFactory.php
JWSLoader.php
JWSLoaderFactory.php
JWSTokenSupport.php
JWSVerifier.php
JWSVerifierFactory.php
LICENSE
README.md
Signature.php
composer.json
jwt-signature-algorithm-ecdsa
jwt-signature-algorithm-eddsa
jwt-signature-algorithm-rsa
autoload.php
LICENSE
readme.txt
wp-webauthn.php
wwa-admin-content.php
wwa-ajax.php
wwa-compatibility.php
wwa-functions.php
wwa-menus.php
wwa-profile-content.php
wwa-shortcodes.php
wwa-version.php
index.php
themes
upgrade-temp-backup
w3tc-config
index.php
.dbsetup
.gitignore
htaccess
php.ini
168 lines
5.3 KiB
PHP
168 lines
5.3 KiB
PHP
<?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\Signature\Serializer;
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use function array_key_exists;
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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 function is_array;
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use function is_string;
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use Jose\Component\Core\Util\JsonConverter;
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use Jose\Component\Signature\JWS;
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use LogicException;
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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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public function displayName(): string
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{
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return 'JWS JSON General';
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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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* @throws LogicException if no signature is attached
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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->getEncodedProtectedHeader(),
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'header' => $signature->getHeader(),
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];
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foreach ($values as $key => $value) {
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if ((is_string($value) && '' !== $value) || (is_array($value) && 0 !== count($value))) {
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$tmp[$key] = $value;
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}
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}
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$data['signatures'][] = $tmp;
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}
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return JsonConverter::encode($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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*/
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public function unserialize(string $input): JWS
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{
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$data = JsonConverter::decode($input);
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if (!isset($data['signatures'])) {
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throw new InvalidArgumentException('Unsupported input.');
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}
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$isPayloadEncoded = null;
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$rawPayload = $data['payload'] ?? null;
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$signatures = [];
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foreach ($data['signatures'] as $signature) {
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if (!isset($signature['signature'])) {
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throw new InvalidArgumentException('Unsupported input.');
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}
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[$encodedProtectedHeader, $protectedHeader, $header] = $this->processHeaders($signature);
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$signatures[] = [
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'signature' => Base64Url::decode($signature['signature']),
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'protected' => $protectedHeader,
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'encoded_protected' => $encodedProtectedHeader,
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'header' => $header,
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];
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$isPayloadEncoded = $this->processIsPayloadEncoded($isPayloadEncoded, $protectedHeader);
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}
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$payload = $this->processPayload($rawPayload, $isPayloadEncoded);
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$jws = new JWS($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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* @throws InvalidArgumentException if the payload encoding is invalid
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*/
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private function processIsPayloadEncoded(?bool $isPayloadEncoded, array $protectedHeader): bool
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{
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if (null === $isPayloadEncoded) {
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return $this->isPayloadEncoded($protectedHeader);
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}
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if ($this->isPayloadEncoded($protectedHeader) !== $isPayloadEncoded) {
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throw new InvalidArgumentException('Foreign payload encoding detected.');
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}
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return $isPayloadEncoded;
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}
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private function processHeaders(array $signature): array
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{
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$encodedProtectedHeader = $signature['protected'] ?? null;
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$protectedHeader = null === $encodedProtectedHeader ? [] : JsonConverter::decode(Base64Url::decode($encodedProtectedHeader));
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$header = array_key_exists('header', $signature) ? $signature['header'] : [];
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return [$encodedProtectedHeader, $protectedHeader, $header];
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}
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private function processPayload(?string $rawPayload, ?bool $isPayloadEncoded): ?string
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{
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if (null === $rawPayload) {
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return null;
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}
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return false === $isPayloadEncoded ? $rawPayload : Base64Url::decode($rawPayload);
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}
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// @throws LogicException if the payload encoding is invalid
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private function checkPayloadEncoding(JWS $jws): void
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{
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if ($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->getProtectedHeader());
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}
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if (false === $jws->isPayloadDetached()) {
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if ($is_encoded !== $this->isPayloadEncoded($signature->getProtectedHeader())) {
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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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