tunnelkit/Sources/TunnelKitManager/MockVPN.swift

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//
// MockVPN.swift
// TunnelKit
//
// Created by Davide De Rosa on 6/15/18.
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// Copyright (c) 2024 Davide De Rosa. All rights reserved.
//
// https://github.com/passepartoutvpn
//
// This file is part of TunnelKit.
//
// TunnelKit is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// TunnelKit is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with TunnelKit. If not, see <http://www.gnu.org/licenses/>.
//
import Foundation
import NetworkExtension
/// Simulates a VPN provider.
public class MockVPN: VPN {
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private var tunnelBundleIdentifier: String?
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private var isEnabled: Bool {
didSet {
notifyReinstall(isEnabled)
}
}
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private var vpnStatus: VPNStatus {
didSet {
notifyStatus(vpnStatus)
}
}
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private let delayNanoseconds: UInt64
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public init(delay: Int = 1) {
delayNanoseconds = DispatchTimeInterval.seconds(delay).nanoseconds
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isEnabled = false
vpnStatus = .disconnected
}
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// MARK: VPN
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public func prepare() {
}
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public func install(
_ tunnelBundleIdentifier: String,
configuration: NetworkExtensionConfiguration,
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extra: NetworkExtensionExtra?
) {
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self.tunnelBundleIdentifier = tunnelBundleIdentifier
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isEnabled = true
vpnStatus = .disconnected
}
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public func reconnect(after: DispatchTimeInterval) async throws {
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if vpnStatus == .connected {
vpnStatus = .disconnecting
await delay()
}
vpnStatus = .connecting
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await delay()
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vpnStatus = .connected
}
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public func reconnect(
_ tunnelBundleIdentifier: String,
configuration: NetworkExtensionConfiguration,
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extra: NetworkExtensionExtra?,
after: DispatchTimeInterval
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) async throws {
self.tunnelBundleIdentifier = tunnelBundleIdentifier
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isEnabled = true
if vpnStatus == .connected {
vpnStatus = .disconnecting
await delay()
}
vpnStatus = .connecting
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await delay()
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vpnStatus = .connected
}
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public func disconnect() async {
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guard vpnStatus != .disconnected else {
return
}
vpnStatus = .disconnecting
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await delay()
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vpnStatus = .disconnected
isEnabled = false
}
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public func uninstall() async {
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vpnStatus = .disconnected
isEnabled = false
}
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// MARK: Helpers
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private func notifyReinstall(_ isEnabled: Bool) {
var notification = Notification(name: VPNNotification.didReinstall)
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notification.vpnBundleIdentifier = tunnelBundleIdentifier
notification.vpnIsEnabled = isEnabled
NotificationCenter.default.post(notification)
}
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private func notifyStatus(_ status: VPNStatus) {
var notification = Notification(name: VPNNotification.didChangeStatus)
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notification.vpnBundleIdentifier = tunnelBundleIdentifier
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notification.vpnIsEnabled = isEnabled
notification.vpnStatus = status
NotificationCenter.default.post(notification)
}
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private func delay() async {
try? await Task.sleep(nanoseconds: delayNanoseconds)
}
}