ASP.Net Identity and Google Authentication Issue - asp.net

Question

I have setup the project in Google and it gave me the appid and secret
I moved the id and secret to StartUp.Auth
public class Startup
{
public void Configuration(IAppBuilder app)
{
app.CreatePerOwinContext<IdentityTestingDbContext>(IdentityTestingDbContext.Create);
app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);
app.CreatePerOwinContext<ApplicationRoleManager>(ApplicationRoleManager.Create);
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
LoginPath = new PathString("/Account/Login"),
});
app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);
app.UseGoogleAuthentication(
clientId: "*********************.apps.googleusercontent.com ",
clientSecret: "**************");
}
}
Here are the actions for external login, i am following Identity Sample Application (install-package Microsoft.AspNet.Identity.Samples -Pre).
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public ActionResult ExternalLogin(string provider, string returnUrl)
{
// Request a redirect to the external login provider
var challenge = new ChallengeResult(provider, Url.Action("ExternalLoginCallback", "Account", new { ReturnUrl = returnUrl }));
return challenge;
}
// Used for XSRF protection when adding external logins
private const string XsrfKey = "XsrfId";
internal class ChallengeResult : HttpUnauthorizedResult
{
public ChallengeResult(string provider, string redirectUri)
: this(provider, redirectUri, null)
{
}
public ChallengeResult(string provider, string redirectUri, string userId)
{
LoginProvider = provider;
RedirectUri = redirectUri;
UserId = userId;
}
public string LoginProvider { get; set; }
public string RedirectUri { get; set; }
public string UserId { get; set; }
public override void ExecuteResult(ControllerContext context)
{
var properties = new AuthenticationProperties { RedirectUri = RedirectUri };
if (UserId != null)
{
properties.Dictionary[XsrfKey] = UserId;
}
context.HttpContext.GetOwinContext().Authentication.Challenge(properties, LoginProvider);
}
}
[AllowAnonymous]
public async Task<ActionResult> ExternalLoginCallback(string returnUrl)
{
var loginInfo = await AuthenticationManager.GetExternalLoginInfoAsync();
if (loginInfo == null)
{
return RedirectToAction("Login");
}
var user = await UserManager.FindAsync(loginInfo.Login);
if (user == null)
{
user = new ApplicationUser
{
Email = loginInfo.Email,
UserName = loginInfo.DefaultUserName,
FirstName = string.Empty,
LastName = string.Empty
};
var result = await UserManager.CreateAsync(user);
if (!result.Succeeded)
{
return View("Error", result.Errors);
}
result = await UserManager.AddLoginAsync(user.Id, loginInfo.Login);
if (!result.Succeeded)
{
return View("Error", result.Errors);
}
}
var identity = await UserManager.CreateIdentityAsync(user, DefaultAuthenticationTypes.ApplicationCookie);
identity.AddClaims(loginInfo.ExternalIdentity.Claims);
AuthenticationManager.SignIn(new AuthenticationProperties
{
IsPersistent = false
}, identity);
return Redirect(returnUrl ?? "/");
}
I get redirected to google but here i am getting an error. Looks like i am missing something but can't figure it out. I have been searching for almost 3 hours and couldn't find any thing to help with this issue.
Do you see any thing that i may be doing wrong?
Why redirect url in the image below is http://localhost:58286/signin-google

Answer 1

Following helped
http://www.asp.net/mvc/overview/security/create-an-aspnet-mvc-5-app-with-facebook-and-google-oauth2-and-openid-sign-on
Fix 1:
The authorized redirect url needs to be http://localhost:58286/signin-google, for the google setup screen shot in the above question thread. This isn't the callback method inside the accounts controller.
Fix 2:
I needed to enable Google+ API as well which i didn't during the setup