ReboundEmulator/Controllers/CDLController.cs

using Microsoft.AspNetCore.Mvc;
using ReboundEmulator.Core;

namespace ReboundEmulator.Controllers
{
    public class CDLController : Controller
    {
        [HttpGet]
        [Route("/cdl/cdl-info.jsp")]
        public IResult CDLInfo(string lkey)
        {
            var acct = Sessions.Find(lkey);
            if (acct is null)
                return Results.Text("error notloggedin", "text/plain");

            var enti = $"oava {(acct.OwnsPremiumAvatar ? 1 : 0)} obad {(acct.OwnsBadges ? 1 : 0)}";
            var body = string.Join(" ",
                "error", "none",
                "screenname", Q(acct.ScreenName),
                "site", Q(acct.Site),
                "tokens", acct.Tokens.ToString(),
                "enti", Q(enti),
                "avatar", Q(acct.Avatar));
            return Results.Text(body, "text/plain");
        }

        static string Q(string s) => "'" + s.Replace("\\", "\\\\").Replace("'", "\\'") + "'";

        [HttpGet("/cdl/1/login")]
        public IResult CDLLogin(string name)
        {
            var lkey = Sessions.Issue(name);

            return Results.Text($"<LoginResponse error=\"none\">\n<LoginSessionKey>{lkey}</LoginSessionKey></LoginResponse>", "text/xml");
        }

        [HttpGet("/cdl/1/cdl-clientprops")]
        public IActionResult CDLClientProps() { return Ok(); } // CDL games don't really need the client props to be present on the server,
                                                               // it was there so Pogo could update assets for CDL games on the fly
    }
}