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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
/// An OCSPSingleResponse is defined as:
///
/// ```
/// SingleResponse ::= SEQUENCE {
/// certID CertID,
/// certStatus CertStatus,
/// thisUpdate GeneralizedTime,
/// nextUpdate [0] EXPLICIT GeneralizedTime OPTIONAL,
/// singleExtensions [1] EXPLICIT Extensions OPTIONAL }
/// ```
///
struct OCSPSingleResponse: DERImplicitlyTaggable, Hashable {
static var defaultIdentifier: ASN1Identifier {
.sequence
}
var certID: OCSPCertID
var certStatus: OCSPCertStatus
var thisUpdate: GeneralizedTime
var nextUpdate: GeneralizedTime?
var extensions: Certificate.Extensions?
init(
certID: OCSPCertID,
certStatus: OCSPCertStatus,
thisUpdate: GeneralizedTime,
nextUpdate: GeneralizedTime?,
extensions: Certificate.Extensions? = nil
) {
self.certID = certID
self.certStatus = certStatus
self.thisUpdate = thisUpdate
self.nextUpdate = nextUpdate
self.extensions = extensions
}
init(derEncoded rootNode: ASN1Node, withIdentifier identifier: ASN1Identifier) throws {
self = try DER.sequence(rootNode, identifier: identifier) { nodes in
let certID = try OCSPCertID(derEncoded: &nodes)
let certStatus = try OCSPCertStatus(derEncoded: &nodes)
let thisUpdate = try GeneralizedTime(derEncoded: &nodes)
let nextUpdate = try DER.optionalExplicitlyTagged(&nodes, tagNumber: 0, tagClass: .contextSpecific) {
node in
try GeneralizedTime(derEncoded: node)
}
let extensions = try DER.optionalExplicitlyTagged(&nodes, tagNumber: 1, tagClass: .contextSpecific) {
node in
try DER.sequence(of: Certificate.Extension.self, identifier: .sequence, rootNode: node)
}
return .init(
certID: certID,
certStatus: certStatus,
thisUpdate: thisUpdate,
nextUpdate: nextUpdate,
extensions: try extensions.map { try .init($0) }
)
}
}
func serialize(into coder: inout DER.Serializer, withIdentifier identifier: ASN1Identifier) throws {
try coder.appendConstructedNode(identifier: identifier) { coder in
try coder.serialize(self.certID)
try coder.serialize(self.certStatus)
try coder.serialize(self.thisUpdate)
if let nextUpdate = self.nextUpdate {
try coder.serialize(nextUpdate, explicitlyTaggedWithTagNumber: 0, tagClass: .contextSpecific)
}
if let extensions = self.extensions {
try coder.serialize(explicitlyTaggedWithTagNumber: 1, tagClass: .contextSpecific) { coder in
try coder.appendConstructedNode(identifier: .sequence) { coder in
for ext in extensions {
try coder.serialize(ext)
}
}
}
}
}
}
}
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