Add API access methods UI/part of backend

1 files changed, 124 insertions, 0 deletions

diff --git a/ios/MullvadVPN/AccessMethodRepository/PersistentAccessMethod.swift b/ios/MullvadVPN/AccessMethodRepository/PersistentAccessMethod.swift
new file mode 100644
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+++ b/ios/MullvadVPN/AccessMethodRepository/PersistentAccessMethod.swift
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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 }
+    }
+}