Untitled

@using Project.Models
@model LoginInfo

<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width" />
<title>Login</title>
<script src="~/Scripts/jquery-2.2.0.js"></script>
<script src="~/Scripts/jquery.unobtrusive-ajax.min.js"></script>
<script src="/Scripts/jquery.validate.min.js"></script>
<script src="/Scripts/jquery.validate.unobtrusive.min.js"></script>
<script src="~/Content/Scripts/login.js"></script>
<script>
    $('html').removeClass('nojs');
</script>
</head>
<body>
<div id="container">
    @using (Ajax.BeginForm("Ajax", "Login", new AjaxOptions { OnBegin = "submit", OnComplete = "response" }))
    {
        <img id="logo" src="~/Content/Images/Main.png" alt="" />
        <table>
            <tr>
                <td>
                    @Html.LabelFor(x => x.serverHost)
                </td>
                <td>
                    @Html.TextBoxFor(x => x.serverHost, new { placeholder = "domain", required = "required" })
                </td>
            </tr>
            <tr>
                <td>
                    @Html.LabelFor(x => x.instanceName)
                </td>
                <td>
                    @Html.TextBoxFor(x => x.instanceName, new { placeholder = "company", required = "required" })
                </td>
            </tr>
            <tr>
                <td>
                    @Html.LabelFor(x => x.username)
                </td>
                <td>
                    @Html.TextBoxFor(x => x.username, new { placeholder = "Username", required = "required" })
                </td>
            </tr>
            <tr>
                <td>
                    @Html.LabelFor(x => x.password)
                </td>
                <td>
                    @Html.PasswordFor(x => x.password, new { placeholder = "Password", required = "required" })
                </td>
            </tr>
        </table>
        <table>
            <tr>
                <td id="remembertd">
                    @Html.LabelFor(x => x.remember, "Remember me")
                    @Html.CheckBoxFor(x => x.remember, new { @checked = Model.remember })
                </td>
                <td>
                    <input id="submit" type="submit" value="Connect" />
                </td>
            </tr>
        </table>
    }
</div>
</body>
</html>

[AllowAnonymous]
    public class LoginController : Controller
    {
        public ActionResult Index()
        {
            return View(new LoginInfo());
        }

        [ValidateInput(true)]
        public ActionResult Ajax(LoginInfo info)
        {
            HttpStatusCodeResult result = new HttpStatusCodeResult(200);

            if (!ModelState.IsValid)
            {
                result = GetFailedResult(new ModelStateInvalidException(), Reason.ModelStateInvalid);
            }
            else
            {
                try
                {
                    var i = 0;

                    var j = 10 / i;

                }
                catch (Exception ex)
                {
                    result = GetFailedResult(ex, Reason.Unhandled);
                }
            }

            return new HttpStatusCodeResult(result.StatusCode, result.StatusDescription);
        }

        private HttpStatusCodeResult GetFailedResult(Exception ex, Reason reason)
        {
            HttpStatusCode httpErrorCode = HttpStatusCode.InternalServerError;
            String errorMessage = String.Empty;

            //Trace
            RemotingHelper.Trace("Login attempt failed with message: " + ex.Message + "n----------");

            //Get message/code
            switch (reason)
            {
                case Reason.IncorrectInstanceName:
                case Reason.IncorrectServerHost:
                case Reason.IncorrectServerHostPort:
                case Reason.IncorrectUsernameOrPassword:
                    httpErrorCode = HttpStatusCode.Forbidden;
                    errorMessage = "Could not connect using the provided details.";
                    break;

                case Reason.Offline:
                    httpErrorCode = HttpStatusCode.ServiceUnavailable;
                    errorMessage = "Could not establish connection with the server.";
                    break;

                case Reason.LicenseMissing:
                    httpErrorCode = HttpStatusCode.InternalServerError;
                    errorMessage = "There was a problem with your license.nPlease contact an administrator.";
                    break;

                default:
                    httpErrorCode = HttpStatusCode.InternalServerError;
                    errorMessage = "There was an error attempting to log in.nPlease contact an administrator.";
                    break;
            }

            //Return
            return new HttpStatusCodeResult(httpErrorCode, errorMessage + ":" + ((Int32)reason).ToString());
        }
    }

public enum Reason
    {
        Network = 10,
        Offline = 11,
        LicenseMissing = 12,
        LicenseFileMissing,
        NullChannel = 14,
        ModelStateInvalid = 15,
        Unhandled = 16,
        IncorrectServerHost = 17,
        IncorrectServerHostPort = 18,
        IncorrectInstanceName = 19,
        IncorrectUsernameOrPassword = 20
    }

    public class LoginInfo
    {
        public LoginInfo()
        {
            serverHost = string.Empty;
            instanceName = string.Empty;
            username = string.Empty;
            password = string.Empty;
            remotingPassword = null;
            remember = false;
        }

        [Required]
        [Display(Name = "Server Host")]
        public string serverHost { get; set; }

        [Required]
        [Display(Name = "Instance Name")]
        public string instanceName { get; set; }

        [Required]
        [Display(Name = "Username")]
        public string username { get; set; }

        [Required]
        [Display(Name = "Password")]
        public string password { get; set; }

        [Display(Name = "Remoting Password")]
        public string remotingPassword { get; set; }

        [Display(Name = "Persistent")]
        public bool remember { get; set; }
    }

function response(data) {
    setTimeout(function () {
        if (data.status == 200) {
            success();
        }
        else {
            var info = data.statusText.split('|');
            var message = info[0];
            var code = info[1];

            console.log("Login failed with error code: " + code);
            failure(message);
        }
    }, 1000);
}