Provide mock tunnels for the Simulator

To help in generation of screenshots for the App Store

Signed-off-by: Roopesh Chander <roop@roopc.net>

WireGuard/WireGuard/Tunnel/MockTunnels.swift

@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: MIT
+// Copyright © 2018 WireGuard LLC. All Rights Reserved.
+
+import NetworkExtension
+
+// Creates mock tunnels for the iOS Simulator.
+
+#if targetEnvironment(simulator)
+class MockTunnels {
+    static let tunnelNames = [
+        "demo",
+        "edgesecurity",
+        "home",
+        "office"
+    ]
+    static let address = "192.168.4.184/24"
+    static let dnsServers = ["8.8.8.8", "4.4.4.4"]
+    static let endpoint = "demo.wireguard.com:12912"
+    static let allowedIPs = "0.0.0.0/0"
+
+    static func createMockTunnels() -> [NETunnelProviderManager] {
+        return tunnelNames.map { tunnelName -> NETunnelProviderManager in
+
+            var interface = InterfaceConfiguration(name: tunnelName, privateKey: Curve25519.generatePrivateKey())
+            interface.addresses = [IPAddressRange(from: address)!]
+            interface.dns = dnsServers.map { DNSServer(from: $0)! }
+
+            var peer = PeerConfiguration(publicKey: Curve25519.generatePublicKey(fromPrivateKey: Curve25519.generatePrivateKey()))
+            peer.endpoint = Endpoint(from: endpoint)
+            peer.allowedIPs = [IPAddressRange(from: allowedIPs)!]
+
+            let tunnelConfiguration = TunnelConfiguration(interface: interface, peers: [peer])
+
+            let tunnelProviderManager = NETunnelProviderManager()
+            tunnelProviderManager.protocolConfiguration = NETunnelProviderProtocol(tunnelConfiguration: tunnelConfiguration)
+            tunnelProviderManager.localizedDescription = tunnelName
+            tunnelProviderManager.isEnabled = true
+
+            return tunnelProviderManager
+        }
+    }
+}
+#endif

WireGuard/WireGuard/Tunnel/TunnelsManager.swift

@@ -92,7 +92,7 @@ class TunnelsManager {
 
     static func create(completionHandler: @escaping (WireGuardResult<TunnelsManager>) -> Void) {
         #if targetEnvironment(simulator)
-        completionHandler(.success(TunnelsManager(tunnelProviders: [])))
+        completionHandler(.success(TunnelsManager(tunnelProviders: MockTunnels.createMockTunnels())))
         #else
         NETunnelProviderManager.loadAllFromPreferences { managers, error in
             if let error = error {
@@ -272,13 +272,21 @@ class TunnelsManager {
             return
         }
 
+        #if targetEnvironment(simulator)
+        tunnel.status = .active
+        #else
         tunnel.startActivation(activationDelegate: activationDelegate)
+        #endif
     }
 
     func startDeactivation(of tunnel: TunnelContainer) {
         tunnel.isAttemptingActivation = false
         guard tunnel.status != .inactive && tunnel.status != .deactivating else { return }
+        #if targetEnvironment(simulator)
+        tunnel.status = .inactive
+        #else
         tunnel.startDeactivation()
+        #endif
     }
 
     func refreshStatuses() {