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//
// AnyIPAddress.swift
// MullvadVPN
//
// Created by pronebird on 05/10/2021.
// Copyright © 2021 Mullvad VPN AB. All rights reserved.
//
import Foundation
import Network
/// Container type that holds either `IPv4Address` or `IPv6Address`.
enum AnyIPAddress: IPAddress, Codable, Equatable, CustomDebugStringConvertible {
case ipv4(IPv4Address)
case ipv6(IPv6Address)
private enum CodingKeys: String, CodingKey {
case ipv4, ipv6
}
private var innerAddress: IPAddress {
switch self {
case .ipv4(let ipv4Address):
return ipv4Address
case .ipv6(let ipv6Address):
return ipv6Address
}
}
var rawValue: Data {
return innerAddress.rawValue
}
init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
if container.contains(.ipv4) {
self = .ipv4(try container.decode(IPv4Address.self, forKey: .ipv4))
} else if container.contains(.ipv6) {
self = .ipv6(try container.decode(IPv6Address.self, forKey: .ipv6))
} else {
throw DecodingError.dataCorruptedError(forKey: .ipv4, in: container, debugDescription: "Invalid AnyIPAddress representation")
}
}
func encode(to encoder: Encoder) throws {
var container = encoder.container(keyedBy: CodingKeys.self)
switch self {
case .ipv4(let ipv4Address):
try container.encode(ipv4Address, forKey: .ipv4)
case .ipv6(let ipv6Address):
try container.encode(ipv6Address, forKey: .ipv6)
}
}
init?(_ rawValue: Data, _ interface: NWInterface?) {
if let ipv4Address = IPv4Address(rawValue, interface) {
self = .ipv4(ipv4Address)
} else if let ipv6Address = IPv6Address(rawValue, interface) {
self = .ipv6(ipv6Address)
} else {
return nil
}
}
init?(_ string: String) {
if let ipv4Address = IPv4Address(string) {
self = .ipv4(ipv4Address)
} else if let ipv6Address = IPv6Address(string) {
self = .ipv6(ipv6Address)
} else {
return nil
}
}
var interface: NWInterface? {
return innerAddress.interface
}
var isLoopback: Bool {
return innerAddress.isLoopback
}
var isLinkLocal: Bool {
return innerAddress.isLinkLocal
}
var isMulticast: Bool {
return innerAddress.isMulticast
}
var debugDescription: String {
switch self {
case .ipv4(let ipv4Address):
return "\(ipv4Address)"
case .ipv6(let ipv6Address):
return "\(ipv6Address)"
}
}
}
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