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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftCertificates open source project
//
// Copyright (c) 2022 Apple Inc. and the SwiftCertificates project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftCertificates project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
import SwiftASN1
/// ``OCSPSingleRequest`` is defined in ASN.1 as:
/// ```
/// Request ::= SEQUENCE {
/// reqCert CertID,
/// singleRequestExtensions [0] EXPLICIT Extensions OPTIONAL }
/// ```
/// - note: originally named just `Request` in RFC 6960 but prefix `Single` added to avoid naming conflicts with ``OCSPRequest``
struct OCSPSingleRequest: DERImplicitlyTaggable, Hashable {
static var defaultIdentifier: ASN1Identifier {
.sequence
}
var certID: OCSPCertID
var singleRequestExtensions: Certificate.Extensions?
init(certID: OCSPCertID, singleRequestExtensions: Certificate.Extensions? = nil) {
self.certID = certID
self.singleRequestExtensions = singleRequestExtensions
}
init(derEncoded: ASN1Node, withIdentifier identifier: ASN1Identifier) throws {
self = try DER.sequence(derEncoded, identifier: identifier) { nodes in
let certID = try OCSPCertID(derEncoded: &nodes)
let singleRequestExtensions = try DER.optionalExplicitlyTagged(
&nodes,
tagNumber: 0,
tagClass: .contextSpecific
) { node in
try Certificate.Extensions(
try DER.sequence(of: Certificate.Extension.self, identifier: .sequence, rootNode: node)
)
}
return .init(certID: certID, singleRequestExtensions: singleRequestExtensions)
}
}
func serialize(into coder: inout DER.Serializer, withIdentifier identifier: ASN1Identifier) throws {
try coder.appendConstructedNode(identifier: identifier) { coder in
try self.certID.serialize(into: &coder)
if let singleRequestExtensions = self.singleRequestExtensions {
try coder.serialize(explicitlyTaggedWithTagNumber: 0, tagClass: .contextSpecific) { coder in
try coder.serializeSequenceOf(singleRequestExtensions)
}
}
}
}
}
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