Ошибка 403 - Это ошибка. Ошибка: disallowed_useragent

 NSDictionary *dictionary = [NSDictionary dictionaryWithObjectsAndKeys:@"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36", @"UserAgent", nil];
 [[NSUserDefaults standardUserDefaults] registerDefaults:dictionary];

let dictionaty = NSDictionary(object: "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36", forKey: "UserAgent" as NSCopying)
UserDefaults.standard.register(defaults: dictionaty)

WKWebViewConfiguration *configuration = [[WKWebViewConfiguration alloc] init];
WKWebView *webView = [[WKWebView alloc] initWithFrame:CGRectZero configuration:configuration];
// Check for selector availability, as it is available only on iOS 9+
if ([webView respondsToSelector:@selector(setCustomUserAgent:)]) {
    webView.customUserAgent = @"MyCustomUserAgent";
}

webview.getSettings().setUserAgentString("Chrome/56.0.0.0 Mobile");

        [[GIDSignIn sharedInstance] signIn];

        [[GIDSignIn sharedInstance] setAllowsSignInWithWebView:NO];

import GoogleAPIClient
import GTMOAuth2
import UIKit
import GoogleSignIn

class ViewController: UIViewController, GIDSignInUIDelegate, GIDSignInDelegate {

  private let kApiKey = "AIzaXXXXXXXXXXXXXXXXXXXXXXX"

  // If modifying these scopes, delete your previously saved credentials by
  // resetting the iOS simulator or uninstall the app.
  private let scopes = [kGTLAuthScopeCalendar]
  private let service = GTLServiceCalendar()

  override func viewDidLoad() {
      super.viewDidLoad()

      service.apiKey = kApiKey

      GIDSignIn.sharedInstance().uiDelegate = self
      GIDSignIn.sharedInstance().scopes = scopes
      GIDSignIn.sharedInstance().signIn()
      GIDSignIn.sharedInstance().delegate = self
  }

  func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {

      if user != nil {
           print("\(user)")
           service.authorizer = user.authentication.fetcherAuthorizer()
           fetchEvents()
      }
  }

 // Construct a query and get a list of upcoming events from the user calendar
   func fetchEvents() {

        let query = GTLQueryCalendar.queryForEventsList(withCalendarId: "primary")
        query?.maxResults = 20
        query?.singleEvents = true
        query?.orderBy = kGTLCalendarOrderByStartTime

        service.executeQuery(query!, delegate: self, didFinish: #selector(ViewController.displayResultWithTicket(ticket:finishedWithObject:error:)))
   }

// Display the start dates and event summaries in the UITextView
    func displayResultWithTicket(
         ticket: GTLServiceTicket,
        finishedWithObject response : GTLCalendarEvents,
        error : NSError?) {

        if let error = error {
            showAlert(title: "Error", message: error.localizedDescription)
            return
        }

        var eventString = ""

        if let events = response.items(), !events.isEmpty {
            for event in events as! [GTLCalendarEvent] {
                print(event)
             }
        } else
                print("No upcoming events found.")
        }
    }

    }

@implementation AppDelegate

  // This method will receive the redirect URI after the authentication process was
  // successfull
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {

  // Here we pass the response to the SDK which will automatically
  // complete the authentication process.
  [[NSNotificationCenter defaultCenter] postNotificationName:@"kCloseSafariViewControllerNotification" object:url];

  return YES;
}

@end

// This method will receive the redirect URI after the authentication process was
// successfull
func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {

    if (sourceApplication == "com.apple.SafariViewService") {
        // Here we pass the response to the SDK which will automatically
        // complete the authentication process.
        NSNotificationCenter.defaultCenter().postNotificationName("kCloseSafariViewControllerNotification", object: url)
        return true
    }
    return true
}

mWebView.getSettings().setUserAgentString("Mozilla/5.0 (Linux; Android 4.1.1; Galaxy Nexus Build/JRO03C) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.166 Mobile Safari/535.19");

GIDGoogleUser *googleUser = [GIDSignIn sharedInstance].currentUser;

if(googleUser != nil){
    self.service.authorizer = googleUser.authentication.fetcherAuthorizer;
    [self listFiles];

}