ReboundEmulator/Controllers/CDLController.cs

using Microsoft.AspNetCore.Mvc;

namespace NotPogo.Controllers
{
    public class CDLController : Controller
    {
        [HttpGet]
        [Route("/cdl/cdl-info.jsp")]
        public IResult CDLInfo(string lkey)
        {
            // this is just to satisfy download clients
            if (string.IsNullOrEmpty(lkey))
                return Results.Text("");
            else
                return Results.Text("error none screenname 'NotPogoUser' site 'pogo' tokens 9999 enti 'oava 1 obad 1'");
        }

        [HttpGet("/cdl/1/login")]
        public IResult CDLLogin()
        {
            // more satisfying
            return Results.Text($"<LoginResponse error=\"none\">\n<LoginSessionKey>{Guid.NewGuid()}</LoginSessionKey></LoginResponse>", "text/xml");
        }

        [HttpGet("/cdl/1/cdl-clientprops")]
        public IActionResult CDLClientProps(string game)
        {
            string pathToProps = Path.Combine(AppContext.BaseDirectory, "StaticFiles", "Configs", "CDL", $"{game}.properties");

            if (System.IO.File.Exists(pathToProps))
                return Ok(System.IO.File.ReadAllText(pathToProps));
            else
                return Ok(); // don't send anything since we don't have the config for it on the server yet
        }
    }
}