source: TFP-WebServer/WebServer/src/WebAPI/AbsWebAPI.cs@ 440

using Webserver.Permissions;

namespace Webserver.WebAPI {
        public abstract class AbsWebAPI {
                public readonly string Name;
                protected readonly Web ParentWeb;

                protected readonly string CachedApiModuleName;

                protected AbsWebAPI (string _name = null) : this(null, _name) {
                }

                protected AbsWebAPI (Web _parentWeb, string _name = null) {
                        Name = _name ?? GetType ().Name;
                        ParentWeb = _parentWeb;
                        CachedApiModuleName = $"webapi.{Name}";
                        RegisterPermissions ();
                }

                protected virtual void RegisterPermissions () {
                        AdminWebModules.Instance.AddKnownModule (new AdminWebModules.WebModule(CachedApiModuleName, DefaultPermissionLevel (), true));
                }

                public abstract void HandleRequest (RequestContext _context);

                public virtual bool Authorized (RequestContext _context) {
                        return AdminWebModules.Instance.GetModule (CachedApiModuleName).LevelGlobal >= _context.PermissionLevel;
                }

                public virtual int DefaultPermissionLevel () => 0;
        }
}