Middleware check the annotation from controller method - asp.net-core

Question

Hello i want to check the annotation from a controller method in a middleware class.
My config:
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory, BackendDbContext context)
{
loggerFactory.AddConsole(Configuration.GetSection("Logging"));
loggerFactory.AddDebug();
app.UseStaticFiles();
app.UseMiddleware<AuthMiddleware>();
app.UseMvc();
BackendDbInitializer.Init(context);
}
My Controller:
Route("api/[controller]")]
public class UserController : Controller
{
private readonly BackendDbContext _context;
public UserController(BackendDbContext context)
{
_context = context;
}
// GET api/values
[HttpGet]
[NoAuth]
public IEnumerable<string> Get()
{
return new string[] { "value1", "value2" };
}
}
My Middleware:
public class AuthMiddleware
{
private readonly RequestDelegate _next;
public AuthMiddleware(RequestDelegate next)
{
_next = next;
}
public async Task Invoke(HttpContext context)
{
//Here i want to check if the called method in UserController have a annotation...
await _next.Invoke(context);
}
}
In the AuthMiddleware i want to check if the called method have a specific annotation.

Answer 1

I don't know if this question is outdated, I came across the same question today, I'm using Casbin.Net package to implement RBAC for my asp dotnet core project, I need to implement an auth middleware which can recognize controllers with a [Authorize] annotation, so only these controllers need to check permission, the other controllers not, below are my code
rbac with asp dotnet core using casbin
You can ignore the dependency inject and casbin parts, in AuthzMiddleware.cs, I use context.User.Claims.Count() > 0 to check if the current request has passed a Authentication middleware.