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// SPDX-License-Identifier: MIT
// Copyright © 2018 WireGuard LLC. All rights reserved.
import Foundation
class TunnelProviderManager {
// Mock of NETunnelProviderManager
var name: String
fileprivate var tunnelConfiguration: TunnelConfiguration
init(tunnelConfiguration: TunnelConfiguration) {
self.name = tunnelConfiguration.interface.name
self.tunnelConfiguration = tunnelConfiguration
}
}
class TunnelContainer {
var name: String { return tunnelProvider.name }
let tunnelProvider: TunnelProviderManager
var tunnelConfiguration: TunnelConfiguration {
get { return tunnelProvider.tunnelConfiguration }
}
var index: Int
init(tunnel: TunnelProviderManager, index: Int) {
self.tunnelProvider = tunnel
self.index = index
}
}
protocol TunnelsManagerDelegate: class {
func tunnelsAdded(atIndex: Int, numberOfTunnels: Int)
}
class TunnelsManager {
var tunnels: [TunnelContainer]
weak var delegate: TunnelsManagerDelegate? = nil
enum TunnelsManagerError: Error {
case tunnelsUninitialized
}
init(tunnelProviders: [TunnelProviderManager]) {
var tunnels: [TunnelContainer] = []
for (i, tunnelProvider) in tunnelProviders.enumerated() {
let tunnel = TunnelContainer(tunnel: tunnelProvider, index: i)
tunnels.append(tunnel)
}
self.tunnels = tunnels
}
static func create(completionHandler: (TunnelsManager?) -> Void) {
completionHandler(TunnelsManager(tunnelProviders: []))
}
func add(tunnelConfiguration: TunnelConfiguration, completionHandler: @escaping (TunnelContainer, Error?) -> Void) {
let tunnelProvider = TunnelProviderManager(tunnelConfiguration: tunnelConfiguration)
for tunnel in tunnels {
tunnel.index = tunnel.index + 1
}
let tunnel = TunnelContainer(tunnel: tunnelProvider, index: 0)
tunnels.insert(tunnel, at: 0)
delegate?.tunnelsAdded(atIndex: 0, numberOfTunnels: 1)
completionHandler(tunnel, nil)
}
func modify(tunnel: TunnelContainer, with tunnelConfiguration: TunnelConfiguration, completionHandler: @escaping (Error?) -> Void) {
tunnel.tunnelProvider.tunnelConfiguration = tunnelConfiguration
completionHandler(nil)
}
func remove(tunnel: TunnelContainer, completionHandler: @escaping (Error?) -> Void) {
for i in ((tunnel.index + 1) ..< tunnels.count) {
tunnels[i].index = tunnels[i].index + 1
}
tunnels.remove(at: tunnel.index)
completionHandler(nil)
}
func numberOfTunnels() -> Int {
return tunnels.count
}
func tunnel(at index: Int) -> TunnelContainer {
return tunnels[index]
}
}
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