Revalidatingserverauthenticationstateprovider

revalidatingserverauthenticationstateprovider

revalidatingserverauthenticationstateprovider is a class or component used in server-side authentication in web development. It is typically used in ASP.NET Core applications.

When a user authenticates with a server, the server creates an authentication state for that user. The authentication state typically includes information like the user’s identity, roles, and permissions. However, this authentication state can expire after a certain period of time or due to other circumstances. To ensure that the user’s authentication state is valid, the revalidatingserverauthenticationstateprovider is used.

The revalidatingserverauthenticationstateprovider periodically checks the validity of the authentication state on the server. It does this by sending requests to the server to validate the authentication state. If the authentication state is still valid, it is kept as is. If it is not valid, the revalidatingserverauthenticationstateprovider triggers a process to re-authenticate the user.

Here is an example of how to use the revalidatingserverauthenticationstateprovider in ASP.NET Core:

    // ConfigureServices method in Startup.cs

    services.AddServerSideBlazor().AddHubOptions(options =>
    {
        options.JsInteropDefaultCallTimeout = TimeSpan.FromSeconds(120);
    });

    services.AddScoped<AuthenticationStateProvider, RevalidatingServerAuthenticationStateProvider<CustomUser>>();
    services.AddScoped<SignInManager<CustomUser>, SignInManager<CustomUser>>();
    services.AddScoped<CustomUserManager>();

    // CustomUser class

    public class CustomUser : IdentityUser
    {
        // Additional custom properties
    }

    // CustomUserManager class

    public class CustomUserManager : UserManager<CustomUser>
    {
        public CustomUserManager(IUserStore<CustomUser> store, IOptions<IdentityOptions> optionsAccessor,
            IPasswordHasher<CustomUser> passwordHasher, IEnumerable<IUserValidator<CustomUser>> userValidators,
            IEnumerable<IPasswordValidator<CustomUser>> passwordValidators, ILookupNormalizer keyNormalizer,
            IdentityErrorDescriber errors, IServiceProvider services, ILogger<UserManager<CustomUser>> logger) :
            base(store, optionsAccessor, passwordHasher, userValidators, passwordValidators, keyNormalizer, errors, services, logger)
        {
        }
    }
  

In the example above, the revalidatingserverauthenticationstateprovider is added as a scoped service in the ConfigureServices method of Startup.cs. It is configured to work with a custom user class (CustomUser) which inherits from IdentityUser. The necessary dependencies (such as SignInManager and CustomUserManager) are also added as scoped services.

By using the revalidatingserverauthenticationstateprovider, you can ensure that the user’s authentication state remains valid and up-to-date, providing a secure and seamless user experience.