CustomValidateAntiForgeryTokenAttribute

CustomValidateAntiForgeryTokenAttribute.cs

using Microsoft.AspNetCore.Mvc.Filters;
using Microsoft.AspNetCore.Mvc;

public class CustomValidateAntiForgeryTokenAttribute : ValidateAntiForgeryTokenAttribute
{
    public override void OnAuthorization(AuthorizationFilterContext context)
    {
        // Inject custom logic before validation
        // For example, you could log the request or perform some custom checks
        CustomPreValidationLogic(context);

        base.OnAuthorization(context);

        // Inject custom logic after validation
        // For example, you could log the result of the validation
        CustomPostValidationLogic(context);
    }

    private void CustomPreValidationLogic(AuthorizationFilterContext context)
    {
        // Implement your custom pre-validation logic here
        // Example: Logging
        Console.WriteLine("Custom pre-validation logic executed");
    }

    private void CustomPostValidationLogic(AuthorizationFilterContext context)
    {
        // Implement your custom post-validation logic here
        // Example: Logging
        Console.WriteLine("Custom post-validation logic executed");

        if (context.HttpContext.Response.StatusCode == (int)System.Net.HttpStatusCode.Forbidden)
        {
            // Handle validation failure
            Console.WriteLine("Anti-forgery token validation failed");
        }
    }
}