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//
// SettingsReader.swift
// PacketTunnel
//
// Created by pronebird on 30/08/2023.
// Copyright © 2025 Mullvad VPN AB. All rights reserved.
//
import Foundation
import MullvadSettings
import PacketTunnelCore
struct SettingsReader: SettingsReaderProtocol {
func read() throws -> Settings {
let settings = try SettingsManager.readSettings()
let deviceState = try SettingsManager.readDeviceState()
let deviceData = try deviceState.getDeviceData()
return Settings(
privateKey: deviceData.wgKeyData.privateKey,
interfaceAddresses: [deviceData.ipv4Address, deviceData.ipv6Address],
tunnelSettings: settings
)
}
}
private extension DeviceState {
/**
Returns `StoredDeviceState` if device is logged in, otherwise throws an error.
- Throws: an error of type `ReadDeviceDataError` when device is either revoked or logged out.
- Returns: a copy of `StoredDeviceData` stored as associated value in `DeviceState.loggedIn` variant.
*/
func getDeviceData() throws -> StoredDeviceData {
switch self {
case .revoked:
throw ReadDeviceDataError.revoked
case .loggedOut:
throw ReadDeviceDataError.loggedOut
case let .loggedIn(_, deviceData):
return deviceData
}
}
}
/// Error returned when device state is either revoked or logged out.
public enum ReadDeviceDataError: LocalizedError {
case loggedOut, revoked
public var errorDescription: String? {
switch self {
case .loggedOut:
return "Device is logged out."
case .revoked:
return "Device is revoked."
}
}
}
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