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//
// PersistentAccessMethod.swift
// MullvadVPN
//
// Created by pronebird on 15/11/2023.
// Copyright © 2023 Mullvad VPN AB. All rights reserved.
//
import Foundation
import MullvadTypes
import Network
/// Persistent access method model.
struct PersistentAccessMethod: Identifiable, Codable {
/// The unique identifier used for referencing the access method entry in a persistent store.
var id: UUID
/// The user-defined name for access method.
var name: String
/// The flag indicating whether configuration is enabled.
var isEnabled: Bool
/// Proxy configuration.
var proxyConfiguration: PersistentProxyConfiguration
}
/// Persistent proxy configuration.
enum PersistentProxyConfiguration: Codable {
/// Direct communication without proxy.
case direct
/// Communication over bridges.
case bridges
/// Communication over shadowsocks.
case shadowsocks(ShadowsocksConfiguration)
/// Communication over socks5 proxy.
case socks5(SocksConfiguration)
}
extension PersistentProxyConfiguration {
/// Socks autentication method.
enum SocksAuthentication: Codable {
case noAuthentication
case usernamePassword(username: String, password: String)
}
/// Socks v5 proxy configuration.
struct SocksConfiguration: Codable {
/// Proxy server address.
var server: AnyIPAddress
/// Proxy server port.
var port: UInt16
/// Authentication method.
var authentication: SocksAuthentication
}
/// Shadowsocks configuration.
struct ShadowsocksConfiguration: Codable {
/// Server address.
var server: AnyIPAddress
/// Server port.
var port: UInt16
/// Server password.
var password: String
/// Server cipher.
var cipher: ShadowsocksCipher
}
}
extension PersistentAccessMethod {
/// A kind of access method.
var kind: AccessMethodKind {
switch proxyConfiguration {
case .direct:
.direct
case .bridges:
.bridges
case .shadowsocks:
.shadowsocks
case .socks5:
.socks5
}
}
}
/// A kind of API access method.
enum AccessMethodKind: Equatable, Hashable, CaseIterable {
/// Direct communication.
case direct
/// Communication over bridges.
case bridges
/// Communication over shadowsocks.
case shadowsocks
/// Communication over socks v5 proxy.
case socks5
}
extension AccessMethodKind {
/// Returns `true` if the method is permanent and cannot be deleted.
var isPermanent: Bool {
switch self {
case .direct, .bridges:
true
case .shadowsocks, .socks5:
false
}
}
/// Returns all access method kinds that can be added by user.
static var allUserDefinedKinds: [AccessMethodKind] {
allCases.filter { !$0.isPermanent }
}
}
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