public async Task ExternalLoginConfirmation()

in PartsUnlimited-aspnet45/src/PartsUnlimitedWebsite/Controllers/AccountController.cs [394:436]
36 lines of code
7 McCabe index (conditional complexity)

        public async Task<ActionResult> ExternalLoginConfirmation(ExternalLoginConfirmationViewModel model, string returnUrl = null)
        {
            if (User.Identity.IsAuthenticated)
            {
                return RedirectToAction("Index", "Manage");
            }

            if (ModelState.IsValid)
            {
                // Get the information about the user from the external login provider
                var info = await AuthenticationManager.GetExternalLoginInfoAsync();
                if (info == null)
                {
                    return View("ExternalLoginFailure");
                }

                var user = new ApplicationUser { UserName = model.Email, Email = model.Email, Name = model.Name };
                var result = await UserManager.CreateAsync(user);

#if TESTING
                //Just for automated testing adding a claim named 'ManageStore' - Not required for production
                var manageClaim = info.ExternalIdentity.Claims.Where(c => c.Type == Areas.Admin.AdminConstants.ManageStore.Name).FirstOrDefault();
                if (manageClaim != null)
                {
                    await UserManager.AddClaimAsync(user, manageClaim, cancellationToken: Context.RequestAborted);
                }
#endif

                if (result.Succeeded)
                {
                    result = await UserManager.AddLoginAsync(user.Id, info.Login);
                    if (result.Succeeded)
                    {
                        await SignInManager.SignInAsync(user, isPersistent: false, rememberBrowser: false);
                        return RedirectToLocal(returnUrl);
                    }
                }
                AddErrors(result);
            }

            ViewBag.ReturnUrl = returnUrl;
            return View(model);
        }