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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftCertificates open source project
//
// Copyright (c) 2023 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
/// ``CMSEncapsulatedContentInfo`` is defined in ASN.1 as:
/// ```
/// EncapsulatedContentInfo ::= SEQUENCE {
/// eContentType ContentType,
/// eContent [0] EXPLICIT OCTET STRING OPTIONAL }
/// ContentType ::= OBJECT IDENTIFIER
/// ```
@usableFromInline
struct CMSEncapsulatedContentInfo: DERImplicitlyTaggable, Hashable, Sendable {
@inlinable
static var defaultIdentifier: ASN1Identifier {
.sequence
}
@usableFromInline
var eContentType: ASN1ObjectIdentifier
@usableFromInline
var eContent: ASN1OctetString?
@inlinable
init(eContentType: ASN1ObjectIdentifier, eContent: ASN1OctetString? = nil) {
self.eContentType = eContentType
self.eContent = eContent
}
@inlinable
init(derEncoded rootNode: ASN1Node, withIdentifier identifier: ASN1Identifier) throws {
self = try DER.sequence(rootNode, identifier: identifier) { nodes in
let eContentType = try ASN1ObjectIdentifier(derEncoded: &nodes)
let eContent = try DER.optionalExplicitlyTagged(&nodes, tagNumber: 0, tagClass: .contextSpecific) { node in
try ASN1OctetString(derEncoded: node)
}
return .init(eContentType: eContentType, eContent: eContent)
}
}
@inlinable
func serialize(into coder: inout DER.Serializer, withIdentifier identifier: ASN1Identifier) throws {
try coder.appendConstructedNode(
identifier: identifier,
{ coder in
try coder.serialize(eContentType)
if let eContent {
try coder.serialize(explicitlyTaggedWithTagNumber: 0, tagClass: .contextSpecific) { coder in
try coder.serialize(eContent)
}
}
}
)
}
}
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