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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
public enum GeneralName: Hashable, Sendable, DERParseable, DERSerializable {
case otherName(OtherName)
case rfc822Name(String)
case dnsName(String)
case x400Address(ASN1Any)
case directoryName(DistinguishedName)
case ediPartyName(ASN1Any)
case uniformResourceIdentifier(String)
case ipAddress(ASN1OctetString)
case registeredID(ASN1ObjectIdentifier)
@usableFromInline
static let otherNameTag = ASN1Identifier(tagWithNumber: 0, tagClass: .contextSpecific)
@usableFromInline
static let rfc822NameTag = ASN1Identifier(tagWithNumber: 1, tagClass: .contextSpecific)
@usableFromInline
static let dnsNameTag = ASN1Identifier(tagWithNumber: 2, tagClass: .contextSpecific)
@usableFromInline
static let x400AddressTag = ASN1Identifier(tagWithNumber: 3, tagClass: .contextSpecific)
@usableFromInline
static let directoryNameTag = ASN1Identifier(tagWithNumber: 4, tagClass: .contextSpecific)
@usableFromInline
static let ediPartyNameTag = ASN1Identifier(tagWithNumber: 5, tagClass: .contextSpecific)
@usableFromInline
static let uriTag = ASN1Identifier(tagWithNumber: 6, tagClass: .contextSpecific)
@usableFromInline
static let ipAddressTag = ASN1Identifier(tagWithNumber: 7, tagClass: .contextSpecific)
@usableFromInline
static let registeredIDTag = ASN1Identifier(tagWithNumber: 8, tagClass: .contextSpecific)
@inlinable
public init(derEncoded rootNode: ASN1Node) throws {
switch rootNode.identifier {
case Self.otherNameTag:
self = try .otherName(OtherName(derEncoded: rootNode, withIdentifier: Self.otherNameTag))
case Self.rfc822NameTag:
let result = try ASN1IA5String(derEncoded: rootNode, withIdentifier: Self.rfc822NameTag)
self = .rfc822Name(String(result))
case Self.dnsNameTag:
let result = try ASN1IA5String(derEncoded: rootNode, withIdentifier: Self.dnsNameTag)
self = .dnsName(String(result))
case Self.x400AddressTag:
self = .x400Address(ASN1Any(derEncoded: rootNode))
case Self.directoryNameTag:
self = try .directoryName(DistinguishedName(derEncoded: rootNode, withIdentifier: Self.directoryNameTag))
case Self.ediPartyNameTag:
self = .ediPartyName(ASN1Any(derEncoded: rootNode))
case Self.uriTag:
let result = try ASN1IA5String(derEncoded: rootNode, withIdentifier: Self.uriTag)
self = .uniformResourceIdentifier(String(result))
case Self.ipAddressTag:
self = try .ipAddress(ASN1OctetString(derEncoded: rootNode, withIdentifier: Self.ipAddressTag))
case Self.registeredIDTag:
self = try .registeredID(ASN1ObjectIdentifier(derEncoded: rootNode, withIdentifier: Self.registeredIDTag))
default:
throw ASN1Error.unexpectedFieldType(rootNode.identifier)
}
}
@inlinable
public func serialize(into coder: inout DER.Serializer) throws {
switch self {
case .otherName(let otherName):
try otherName.serialize(into: &coder, withIdentifier: Self.otherNameTag)
case .rfc822Name(let name):
let ia5String = try ASN1IA5String(name)
try ia5String.serialize(into: &coder, withIdentifier: Self.rfc822NameTag)
case .dnsName(let name):
let ia5String = try ASN1IA5String(name)
try ia5String.serialize(into: &coder, withIdentifier: Self.dnsNameTag)
case .x400Address(let orAddress):
try orAddress.serialize(into: &coder)
case .directoryName(let name):
try name.serialize(into: &coder, withIdentifier: Self.directoryNameTag)
case .ediPartyName(let name):
try name.serialize(into: &coder)
case .uniformResourceIdentifier(let name):
let ia5String = try ASN1IA5String(name)
try ia5String.serialize(into: &coder, withIdentifier: Self.uriTag)
case .ipAddress(let ipAddress):
try ipAddress.serialize(into: &coder, withIdentifier: Self.ipAddressTag)
case .registeredID(let id):
try id.serialize(into: &coder, withIdentifier: Self.registeredIDTag)
}
}
}
extension GeneralName: CustomStringConvertible {
@inlinable
public var description: String {
switch self {
case .dnsName(let name):
return "DNSName(\(String(reflecting: name)))"
case .directoryName(let directoryName):
return "DirectoryName(\(String(reflecting: directoryName)))"
case .ediPartyName(let name):
return "EDIPartyName(\(String(reflecting: name)))"
case .ipAddress(let address):
return "IPAddress(\(String(reflecting: Array(address.bytes))))"
case .otherName(let otherName):
return "OtherName(\(String(reflecting: otherName)))"
case .registeredID(let id):
return "RegisteredID(\(String(reflecting: id)))"
case .rfc822Name(let name):
return "RFC822Name(\(String(reflecting: name)))"
case .uniformResourceIdentifier(let uri):
return "URI(\(String(reflecting: uri)))"
case .x400Address(let address):
return "X400Address(\(String(reflecting: address)))"
}
}
}
//GeneralName ::= CHOICE {
// otherName [0] OtherName,
// rfc822Name [1] IA5String,
// dNSName [2] IA5String,
// x400Address [3] ORAddress,
// directoryName [4] Name,
// ediPartyName [5] EDIPartyName,
// uniformResourceIdentifier [6] IA5String,
// iPAddress [7] OCTET STRING,
// registeredID [8] OBJECT IDENTIFIER }
//
//OtherName ::= SEQUENCE {
// type-id OBJECT IDENTIFIER,
// value [0] EXPLICIT ANY DEFINED BY type-id }
//
//EDIPartyName ::= SEQUENCE {
// nameAssigner [0] DirectoryString OPTIONAL,
// partyName [1] DirectoryString }
extension GeneralName {
public struct OtherName: Hashable, Sendable, DERImplicitlyTaggable {
@inlinable
public static var defaultIdentifier: ASN1Identifier {
.sequence
}
public var typeID: ASN1ObjectIdentifier
public var value: ASN1Any?
@inlinable
public init(typeID: ASN1ObjectIdentifier, value: ASN1Any?) {
self.typeID = typeID
self.value = value
}
@inlinable
public init(derEncoded rootNode: ASN1Node, withIdentifier identifier: ASN1Identifier) throws {
self = try DER.sequence(rootNode, identifier: identifier) { nodes in
let typeID = try ASN1ObjectIdentifier(derEncoded: &nodes)
let value = try DER.optionalExplicitlyTagged(&nodes, tagNumber: 0, tagClass: .contextSpecific) {
ASN1Any(derEncoded: $0)
}
return OtherName(typeID: typeID, value: value)
}
}
@inlinable
public func serialize(into coder: inout DER.Serializer, withIdentifier identifier: ASN1Identifier) throws {
try coder.appendConstructedNode(identifier: identifier) { coder in
try coder.serialize(self.typeID)
if let value = self.value {
try coder.serialize(
value,
explicitlyTaggedWithIdentifier: .init(tagWithNumber: 0, tagClass: .contextSpecific)
)
}
}
}
}
}
extension GeneralName.OtherName: CustomStringConvertible {
@inlinable
public var description: String {
"\(self.typeID): \(String(reflecting: self.value))"
}
}
@usableFromInline
struct GeneralNames: DERImplicitlyTaggable {
@inlinable
static var defaultIdentifier: ASN1Identifier {
.sequence
}
@usableFromInline
var names: [GeneralName]
@inlinable
init(_ names: [GeneralName]) {
self.names = names
}
@inlinable
init(derEncoded rootNode: ASN1Node, withIdentifier identifier: ASN1Identifier) throws {
self.names = try DER.sequence(of: GeneralName.self, identifier: identifier, rootNode: rootNode)
}
@inlinable
func serialize(into coder: inout DER.Serializer, withIdentifier identifier: ASN1Identifier) throws {
try coder.appendConstructedNode(identifier: identifier) { coder in
for name in names {
try coder.serialize(name)
}
}
}
}
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