public ActionResult Salir()
        {
            investicEntities db = new investicEntities();
            var idUser          = User.Identity.Name;

            tblLogAcceso tbllogAcceso = (from m in db.tblLogAcceso where m.Usuario == idUser orderby m.FechaInicioSesion descending select m).Take(1).FirstOrDefault();

            tbllogAcceso.FechaCierreSesion = System.DateTime.Now;

            db.Entry(tbllogAcceso).State = System.Data.Entity.EntityState.Modified;
            db.SaveChanges();

            AuthenticationManager.SignOut();
            return(Redirect("http://investic.udenar.edu.co/chamilolms/closessn.php?logout=logout&uid=0"));
        }
        public async Task <ActionResult> IniciarSesion(LoginViewModel model, string returnUrl)
        {
            investicEntities db = new investicEntities();

            if (ModelState.IsValid)
            {
                var user = await UserManager.FindAsync(model.UserName, model.Password);

                if (user != null)
                {
                    await SignInAsync(user, model.RememberMe);

                    string       roluser      = AspNetUsersRoles.GetRoles(AspNetUsers.GetUserId(user.UserName)).FirstOrDefault();
                    tblLogAcceso tbllogAcceso = new tblLogAcceso()
                    {
                        Usuario           = model.UserName,
                        IP                = Request.UserHostAddress,
                        Rol               = roluser != ""? roluser:"******",
                        FechaInicioSesion = System.DateTime.Now,
                        FechaCierreSesion = System.DateTime.Now,
                        Latitud           = model.Latitud,
                        Longitud          = model.Longitud,
                        Altitud           = model.Altitud
                    };

                    db.tblLogAcceso.Add(tbllogAcceso);
                    db.SaveChanges();

                    ViewBag.mensaje = "no es";
                    IchamiloClient client = new IchamiloClient();
                    client.Open();
                    ChamiloUser chuser = client.getUserChamilo(model.UserName.Trim());
                    chuser.Password = model.Password;
                    if (AspNetUsersRoles.IsUserInRole("Editor", user.UserName))
                    {
                        return(RedirectToAction("Editor", "Admin", new { nombreu = user.UserName }));
                    }

                    else if (AspNetUsersRoles.IsUserInRole("Maestro", user.UserName))
                    {
                        return(RedirectToAction("Maestro", "Admin", new { nombreu = user.UserName }));
                    }
                    else if (AspNetUsersRoles.IsUserInRole("Estudiante", user.UserName))
                    {
                        return(RedirectToAction("Estudiante", "Admin", new { nombreu = user.UserName }));
                    }
                    else if (AspNetUsersRoles.IsUserInRole("Administrador", user.UserName))
                    {
                        return(RedirectToAction("Index", "Seguimiento"));
                    }
                    else if (AspNetUsersRoles.IsUserInRole("Coordinador", user.UserName))
                    {
                        return(RedirectToAction("Index", "Seguimiento"));
                    }
                    else if (AspNetUsersRoles.IsUserInRole("Contratista", user.UserName))
                    {
                        return(RedirectToAction("Index", "Seguimiento"));
                    }
                    else if (AspNetUsersRoles.IsUserInRole("Administrator", user.UserName))
                    {
                        return(RedirectToAction("Index", "Administrator"));
                    }
                }
                else
                {
                    ModelState.AddModelError("", "Usuario no registrado.");
                }
            }

            // If we got this far, something failed, redisplay form
            return(View(model));
        }