In ASP.NET Core how do you check if request is local?

Question

In the regular ASP.NET you could do this in a view to determine if the current request was from localhost:

HttpContext.Current.Request.IsLocal

B

Answer 1

None of the above worked for me.

Url.IsLocalUrl works very different and I find it a bit useless:

For example, the following URLs are considered local:

  /Views/Default/Index.html
  ~/Index.html

The following URLs are non-local:

  ../Index.html
  http://www.contoso.com/
  http://localhost/Index.html

HttpContext.Connection.IsLocal doesn't exist in .Net Core 2.2

Comparing ControllerContext.HttpContext.Connection.RemoteIpAddress and ControllerContext.HttpContext.Connection.LocalIpAddress also doesn't work in my test because I get "::1" for remote ip and "127.0.0.1" for local ip.

Finally, I used this piece:

IPAddress addr = System.Net.IPAddress.Parse( HttpContext.Connection.RemoteIpAddress.ToString() );
if (System.Net.IPAddress.IsLoopback(addr) )
{
    //do something
}