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Snafu missing TKey on UseCookieAuthentication extension method

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User-217557848 posted

Hello,

I am specifying to UseCookieAuthentication with the following code:

            app.UseCookieAuthentication(new CookieAuthenticationOptions
            {
                AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
                LoginPath = new PathString("/Account/Login"),
                Provider = new CookieAuthenticationProvider
                {
                    // Enables the application to validate the security stamp when the user logs in.
                    // This is a security feature which is used when you change a password or add an external login to your account.  
                    OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<SimulatorUserManager, User, Guid>(
                        validateInterval: TimeSpan.FromMinutes(30),
                        regenerateIdentityCallback: (manager, user) => user.GenerateUserIdentityAsync(manager),
                        // TODO: look up the IUser from the ClaimsIdentity
                        getUserIdCallback: claimsIdentity => Guid.Empty
                        )
                }
            });

Wait for it...

I specify my UserManager, User, and the TKey; in this case, Guid.

In this particular version, figuring this was the best fit for my scenario, "userId" is the User.Id in the domain model.

However, I am pretty sure this one has overlooked that detail in the getUserIdCallback, in that I only have a claimsIdentity. Which I could return claimsIdentity.Name, if I thought that was my Id, which it is not.

The defaults are baked in using the System.String as the key. Could that be one reason why?

I want to use the Guid instead of String, but this detail seems to have been overlooked.

Suggestions?

Thank you...

Regards,

Michael Powell

Sunday, February 28, 2016 7:47 PM

Answers

User-217557848 posted

Figured it out. Loosely based on the SO blog.

            app.UseCookieAuthentication(new CookieAuthenticationOptions
            {
                AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
                LoginPath = new PathString("/Account/Login"),
                Provider = new CookieAuthenticationProvider
                {
                    // Enables the application to validate the security stamp when the user logs in.
                    // This is a security feature which is used when you change a password or add an external login to your account.  
                    OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<SimulatorUserManager, User, Guid>(
                        validateInterval: TimeSpan.FromMinutes(30),
                        regenerateIdentityCallback: (manager, user) => user.GenerateUserIdentityAsync(manager),
                        // TODO: look up the IUser from the ClaimsIdentity
                        getUserIdCallback: claimsIdentity =>
                        {
                            var id = claimsIdentity.GetUserId<string>();
                            return Guid.Parse(id);
                        })
                }
            });

In a somewhat roundabout way, the id is stored as a string, to be expected. GetUserId<string>() fetches this from the claimsIdentity. Then parse as a Guid.

Thank you...

Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM

Sunday, February 28, 2016 7:57 PM

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Snafu missing TKey on UseCookieAuthentication extension method

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