317 lines
14 KiB
Swift
317 lines
14 KiB
Swift
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import UIKit
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import Flutter
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import MobileNebula
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import NetworkExtension
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import MMWormhole
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enum ChannelName {
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static let vpn = "net.defined.mobileNebula/NebulaVpnService"
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}
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func MissingArgumentError(message: String, details: Any?) -> FlutterError {
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return FlutterError(code: "missing_argument", message: message, details: details)
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}
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@UIApplicationMain
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@objc class AppDelegate: FlutterAppDelegate {
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private var sites: Sites?
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private var wormhole = MMWormhole(applicationGroupIdentifier: "group.net.defined.mobileNebula", optionalDirectory: "ipc")
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override func application(
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_ application: UIApplication,
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didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
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) -> Bool {
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GeneratedPluginRegistrant.register(with: self)
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guard let controller = window?.rootViewController as? FlutterViewController else {
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fatalError("rootViewController is not type FlutterViewController")
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}
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sites = Sites(messenger: controller.binaryMessenger)
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let channel = FlutterMethodChannel(name: ChannelName.vpn, binaryMessenger: controller.binaryMessenger)
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NSKeyedUnarchiver.setClass(IPCMessage.classForKeyedUnarchiver(), forClassName: "NebulaNetworkExtension.IPCMessage")
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wormhole.listenForMessage(withIdentifier: "nebula", listener: self.wormholeListener)
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channel.setMethodCallHandler({(call: FlutterMethodCall, result: @escaping FlutterResult) -> Void in
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switch call.method {
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case "nebula.parseCerts": return self.nebulaParseCerts(call: call, result: result)
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case "nebula.generateKeyPair": return self.nebulaGenerateKeyPair(result: result)
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case "nebula.renderConfig": return self.nebulaRenderConfig(call: call, result: result)
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case "listSites": return self.listSites(result: result)
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case "deleteSite": return self.deleteSite(call: call, result: result)
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case "saveSite": return self.saveSite(call: call, result: result)
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case "startSite": return self.startSite(call: call, result: result)
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case "stopSite": return self.stopSite(call: call, result: result)
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case "active.listHostmap": self.activeListHostmap(call: call, result: result)
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case "active.listPendingHostmap": self.activeListPendingHostmap(call: call, result: result)
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case "active.getHostInfo": self.activeGetHostInfo(call: call, result: result)
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case "active.setRemoteForTunnel": self.activeSetRemoteForTunnel(call: call, result: result)
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case "active.closeTunnel": self.activeCloseTunnel(call: call, result: result)
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default:
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result(FlutterMethodNotImplemented)
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}
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})
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return super.application(application, didFinishLaunchingWithOptions: launchOptions)
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}
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func nebulaParseCerts(call: FlutterMethodCall, result: FlutterResult) {
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guard let args = call.arguments as? Dictionary<String, String> else { return result(NoArgumentsError()) }
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guard let certs = args["certs"] else { return result(MissingArgumentError(message: "certs is a required argument")) }
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var err: NSError?
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let json = MobileNebulaParseCerts(certs, &err)
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if (err != nil) {
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return result(CallFailedError(message: "Error while parsing certificate(s)", details: err!.localizedDescription))
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}
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return result(json)
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}
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func nebulaGenerateKeyPair(result: FlutterResult) {
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var err: NSError?
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let kp = MobileNebulaGenerateKeyPair(&err)
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if (err != nil) {
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return result(CallFailedError(message: "Error while generating key pairs", details: err!.localizedDescription))
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}
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return result(kp)
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}
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func nebulaRenderConfig(call: FlutterMethodCall, result: FlutterResult) {
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guard let config = call.arguments as? String else { return result(NoArgumentsError()) }
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var err: NSError?
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print(config)
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let yaml = MobileNebulaRenderConfig(config, "<hidden>", &err)
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if (err != nil) {
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return result(CallFailedError(message: "Error while rendering config", details: err!.localizedDescription))
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}
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return result(yaml)
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}
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func listSites(result: @escaping FlutterResult) {
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self.sites?.loadSites { (sites, err) -> () in
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if (err != nil) {
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return result(CallFailedError(message: "Failed to load site list", details: err!.localizedDescription))
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}
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let encoder = JSONEncoder()
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let data = try! encoder.encode(sites)
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let ret = String(data: data, encoding: .utf8)
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result(ret)
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}
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}
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func deleteSite(call: FlutterMethodCall, result: @escaping FlutterResult) {
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guard let id = call.arguments as? String else { return result(NoArgumentsError()) }
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//TODO: stop the site if its running currently
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self.sites?.deleteSite(id: id) { error in
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if (error != nil) {
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result(CallFailedError(message: "Failed to delete site", details: error!.localizedDescription))
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}
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result(nil)
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}
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}
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func saveSite(call: FlutterMethodCall, result: @escaping FlutterResult) {
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guard let json = call.arguments as? String else { return result(NoArgumentsError()) }
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guard let data = json.data(using: .utf8) else { return result(NoArgumentsError()) }
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guard let site = try? JSONDecoder().decode(IncomingSite.self, from: data) else {
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return result(NoArgumentsError())
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}
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let oldSite = self.sites?.getSite(id: site.id)
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site.save(manager: oldSite?.manager) { error in
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if (error != nil) {
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return result(CallFailedError(message: "Failed to save site", details: error!.localizedDescription))
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}
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result(nil)
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}
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}
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func startSite(call: FlutterMethodCall, result: @escaping FlutterResult) {
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guard let args = call.arguments as? Dictionary<String, String> else { return result(NoArgumentsError()) }
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guard let id = args["id"] else { return result(MissingArgumentError(message: "id is a required argument")) }
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#if targetEnvironment(simulator)
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let updater = self.sites?.getUpdater(id: id)
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updater?.update(connected: true)
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#else
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let manager = self.sites?.getSite(id: id)?.manager
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manager?.loadFromPreferences{ error in
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//TODO: Handle load error
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// This is silly but we need to enable the site each time to avoid situations where folks have multiple sites
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manager?.isEnabled = true
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manager?.saveToPreferences{ error in
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//TODO: Handle load error
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manager?.loadFromPreferences{ error in
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//TODO: Handle load error
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do {
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try manager?.connection.startVPNTunnel()
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} catch {
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return result(CallFailedError(message: "Could not start site", details: error.localizedDescription))
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}
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return result(nil)
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}
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}
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}
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#endif
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}
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func stopSite(call: FlutterMethodCall, result: @escaping FlutterResult) {
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guard let args = call.arguments as? Dictionary<String, String> else { return result(NoArgumentsError()) }
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guard let id = args["id"] else { return result(MissingArgumentError(message: "id is a required argument")) }
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#if targetEnvironment(simulator)
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let updater = self.sites?.getUpdater(id: id)
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updater?.update(connected: false)
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#else
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let manager = self.sites?.getSite(id: id)?.manager
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manager?.loadFromPreferences{ error in
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//TODO: Handle load error
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manager?.connection.stopVPNTunnel()
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return result(nil)
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}
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#endif
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}
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func activeListHostmap(call: FlutterMethodCall, result: @escaping FlutterResult) {
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guard let args = call.arguments as? Dictionary<String, String> else { return result(NoArgumentsError()) }
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guard let id = args["id"] else { return result(MissingArgumentError(message: "id is a required argument")) }
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//TODO: match id for safety?
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wormholeRequestWithCallback(type: "listHostmap", arguments: nil) { (data, err) -> () in
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if (err != nil) {
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return result(CallFailedError(message: err!.localizedDescription))
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}
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result(data)
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}
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}
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func activeListPendingHostmap(call: FlutterMethodCall, result: @escaping FlutterResult) {
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guard let args = call.arguments as? Dictionary<String, String> else { return result(NoArgumentsError()) }
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guard let id = args["id"] else { return result(MissingArgumentError(message: "id is a required argument")) }
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//TODO: match id for safety?
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wormholeRequestWithCallback(type: "listPendingHostmap", arguments: nil) { (data, err) -> () in
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if (err != nil) {
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return result(CallFailedError(message: err!.localizedDescription))
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}
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result(data)
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}
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}
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func activeGetHostInfo(call: FlutterMethodCall, result: @escaping FlutterResult) {
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guard let args = call.arguments as? Dictionary<String, Any> else { return result(NoArgumentsError()) }
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guard let id = args["id"] as? String else { return result(MissingArgumentError(message: "id is a required argument")) }
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guard let vpnIp = args["vpnIp"] as? String else { return result(MissingArgumentError(message: "vpnIp is a required argument")) }
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let pending = args["pending"] as? Bool ?? false
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//TODO: match id for safety?
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wormholeRequestWithCallback(type: "getHostInfo", arguments: ["vpnIp": vpnIp, "pending": pending]) { (data, err) -> () in
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if (err != nil) {
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return result(CallFailedError(message: err!.localizedDescription))
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}
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result(data)
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}
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}
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func activeSetRemoteForTunnel(call: FlutterMethodCall, result: @escaping FlutterResult) {
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guard let args = call.arguments as? Dictionary<String, String> else { return result(NoArgumentsError()) }
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guard let id = args["id"] else { return result(MissingArgumentError(message: "id is a required argument")) }
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guard let vpnIp = args["vpnIp"] else { return result(MissingArgumentError(message: "vpnIp is a required argument")) }
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guard let addr = args["addr"] else { return result(MissingArgumentError(message: "addr is a required argument")) }
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//TODO: match id for safety?
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wormholeRequestWithCallback(type: "setRemoteForTunnel", arguments: ["vpnIp": vpnIp, "addr": addr]) { (data, err) -> () in
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if (err != nil) {
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return result(CallFailedError(message: err!.localizedDescription))
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}
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result(data)
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}
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}
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func activeCloseTunnel(call: FlutterMethodCall, result: @escaping FlutterResult) {
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guard let args = call.arguments as? Dictionary<String, String> else { return result(NoArgumentsError()) }
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guard let id = args["id"] else { return result(MissingArgumentError(message: "id is a required argument")) }
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guard let vpnIp = args["vpnIp"] else { return result(MissingArgumentError(message: "vpnIp is a required argument")) }
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//TODO: match id for safety?
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wormholeRequestWithCallback(type: "closeTunnel", arguments: ["vpnIp": vpnIp]) { (data, err) -> () in
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if (err != nil) {
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return result(CallFailedError(message: err!.localizedDescription))
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}
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result(data as? Bool ?? false)
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}
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}
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func wormholeListener(msg: Any?) {
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guard let call = msg as? IPCMessage else {
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print("Failed to decode IPCMessage from network extension")
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return
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}
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switch call.type {
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case "error":
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guard let updater = self.sites?.getUpdater(id: call.id) else {
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return print("Could not find site to deliver error to \(call.id): \(String(describing: call.message))")
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}
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updater.setError(err: call.message as! String)
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default:
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print("Unknown IPC message type \(call.type)")
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}
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}
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func wormholeRequestWithCallback(type: String, arguments: Dictionary<String, Any>?, completion: @escaping (Any?, Error?) -> ()) {
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let uuid = UUID().uuidString
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wormhole.listenForMessage(withIdentifier: uuid) { msg -> () in
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self.wormhole.stopListeningForMessage(withIdentifier: uuid)
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guard let call = msg as? IPCMessage else {
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completion("", "Failed to decode IPCMessage callback from network extension")
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return
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}
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switch call.type {
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case "error":
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completion("", call.message as? String ?? "Failed to convert error")
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case "success":
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completion(call.message, nil)
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default:
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completion("", "Unknown IPC message type \(call.type)")
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}
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}
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wormhole.passMessageObject(IPCRequest(callbackId: uuid, type: type, arguments: arguments), identifier: "app")
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}
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}
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func MissingArgumentError(message: String, details: Error? = nil) -> FlutterError {
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return FlutterError(code: "missingArgument", message: message, details: details)
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}
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func NoArgumentsError(message: String? = "no arguments were provided or could not be deserialized", details: Error? = nil) -> FlutterError {
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return FlutterError(code: "noArguments", message: message, details: details)
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}
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func CallFailedError(message: String, details: String? = "") -> FlutterError {
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return FlutterError(code: "callFailed", message: message, details: details)
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}
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