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✏️ Editing: NestedTokenBuilder.php

<?php

declare (strict_types=1);
namespace Platform360\Jose\Component\NestedToken;

use Platform360\Jose\Component\Core\JWK;
use Platform360\Jose\Component\Encryption\JWEBuilder;
use Platform360\Jose\Component\Encryption\Serializer\JWESerializerManager;
use Platform360\Jose\Component\Signature\JWSBuilder;
use Platform360\Jose\Component\Signature\Serializer\JWSSerializerManager;
use function array_key_exists;
class NestedTokenBuilder
{
    public function __construct(private readonly JWEBuilder $jweBuilder, private readonly JWESerializerManager $jweSerializerManager, private readonly JWSBuilder $jwsBuilder, private readonly JWSSerializerManager $jwsSerializerManager)
    {
    }
    /**
     * Creates a nested token.
     *
     * @param array{array{key: JWK, protected_header?: array<string, mixed>, header?: array<string, mixed>}} $signatures
     * @param array{alg?: string, string?: mixed} $jweSharedProtectedHeader
     * @param array{alg?: string, string?: mixed} $jweSharedHeader
     * @param array{array{key: JWK, header?: array<string, mixed>}} $recipients
     */
    public function create(string $payload, array $signatures, string $jws_serialization_mode, array $jweSharedProtectedHeader, array $jweSharedHeader, array $recipients, string $jwe_serialization_mode, ?string $aad = null) : string
    {
        $jws = $this->jwsBuilder->create()->withPayload($payload);
        foreach ($signatures as $signature) {
            $signature['protected_header'] = array_key_exists('protected_header', $signature) ? $signature['protected_header'] : [];
            $signature['header'] = array_key_exists('header', $signature) ? $signature['header'] : [];
            $jws = $jws->addSignature($signature['key'], $signature['protected_header'], $signature['header']);
        }
        $jws = $jws->build();
        $token = $this->jwsSerializerManager->serialize($jws_serialization_mode, $jws);
        $jweSharedProtectedHeader['cty'] = 'JWT';
        $jwe = $this->jweBuilder->create()->withPayload($token)->withSharedProtectedHeader($jweSharedProtectedHeader)->withSharedHeader($jweSharedHeader)->withAAD($aad);
        foreach ($recipients as $recipient) {
            $recipient['header'] = array_key_exists('header', $recipient) ? $recipient['header'] : [];
            $jwe = $jwe->addRecipient($recipient['key'], $recipient['header']);
        }
        $jwe = $jwe->build();
        return $this->jweSerializerManager->serialize($jwe_serialization_mode, $jwe);
    }
}

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