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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 container model.
public struct PersistentAccessMethodStore: Codable {
/// The last successfully reached access method.
public var lastReachableAccessMethod: PersistentAccessMethod
/// Persistent access method models.
public var accessMethods: [PersistentAccessMethod]
}
/// Persistent access method model.
public struct PersistentAccessMethod: Identifiable, Codable, Equatable {
/// The unique identifier used for referencing the access method entry in a persistent store.
public var id: UUID
/// The user-defined name for access method.
public var name: String
/// The flag indicating whether configuration is enabled.
public var isEnabled: Bool
/// Proxy configuration.
public var proxyConfiguration: PersistentProxyConfiguration
public init(id: UUID, name: String, isEnabled: Bool, proxyConfiguration: PersistentProxyConfiguration) {
self.id = id
self.name = name
self.isEnabled = isEnabled
self.proxyConfiguration = proxyConfiguration
}
public init(from decoder: any Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
self.id = try container.decode(UUID.self, forKey: .id)
self.isEnabled = try container.decode(Bool.self, forKey: .isEnabled)
self.proxyConfiguration = try container.decode(PersistentProxyConfiguration.self, forKey: .proxyConfiguration)
// Added after release of API access methods feature. There was previously no limitation on text input length,
// so this formatting has been added to prevent already stored names from being too long when displayed.
let name = try container.decode(String.self, forKey: .name)
self.name = NameInputFormatter.format(name)
}
public static func == (lhs: Self, rhs: Self) -> Bool {
lhs.id == rhs.id
}
}
/// Persistent proxy configuration.
public enum PersistentProxyConfiguration: Codable {
/// Direct communication without proxy.
case direct
/// Communication over bridges.
case bridges
/// Communication over proxy address from a DNS.
case encryptedDNS
/// Communication over shadowsocks.
case shadowsocks(ShadowsocksConfiguration)
/// Communication over socks5 proxy.
case socks5(SocksConfiguration)
}
extension PersistentProxyConfiguration {
/// Socks autentication method.
public enum SocksAuthentication: Codable {
case noAuthentication
case authentication(UserCredential)
}
public struct UserCredential: Codable {
public let username: String
public let password: String
public init(username: String, password: String) {
self.username = username
self.password = password
}
}
/// Socks v5 proxy configuration.
public struct SocksConfiguration: Codable {
/// Proxy server address.
public var server: AnyIPAddress
/// Proxy server port.
public var port: UInt16
/// Authentication method.
public var authentication: SocksAuthentication
public init(server: AnyIPAddress, port: UInt16, authentication: SocksAuthentication) {
self.server = server
self.port = port
self.authentication = authentication
}
public var credential: UserCredential? {
guard case let .authentication(credential) = authentication else {
return nil
}
return credential
}
public var toAnyIPEndpoint: AnyIPEndpoint {
switch server {
case let .ipv4(ip):
return .ipv4(IPv4Endpoint(ip: ip, port: port))
case let .ipv6(ip):
return .ipv6(IPv6Endpoint(ip: ip, port: port))
}
}
}
/// Shadowsocks configuration.
public struct ShadowsocksConfiguration: Codable {
/// Server address.
public var server: AnyIPAddress
/// Server port.
public var port: UInt16
/// Server password.
public var password: String
/// Server cipher.
public var cipher: ShadowsocksCipherOptions
public init(server: AnyIPAddress, port: UInt16, password: String, cipher: ShadowsocksCipherOptions) {
self.server = server
self.port = port
self.password = password
self.cipher = cipher
}
}
}
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