/// <summary>
        /// Inspects the environment and checks to see if this is a POST containing the HTML form fields in the login.html page.
        /// </summary>
        /// <param name="environment"></param>
        /// <param name="formsAuthenticationProvider"></param>
        public LoginContext(IDictionary<string, object> environment, FormsAuthenticationProvider formsAuthenticationProvider)
        {
            _environment = environment;
            Request = new OwinRequest(environment);
            Response = new OwinResponse(environment);

            _formsAuthenticationProvider = formsAuthenticationProvider;

            _responseStream = Response.Body;

            var requestContentType = Request.GetHeader("Content-Type");
            _isFormUrlEncodedPost = Request.Method == "POST" && !string.IsNullOrEmpty(requestContentType) && requestContentType.StartsWith("application/x-www-form-urlencoded");

            if (_isFormUrlEncodedPost && Request.Body != null)
            {
                _formData = Request.ReadForm().Result;

                var username = _formData["login_username"];
                var password = _formData["login_password"];
                var rememberMe = _formData["remember_me"] != null && _formData["remember_me"] == "yes";

                if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password))
                {
                    environment["formsauthn.username"] = username;
                    environment["formsauthn.password"] = password;
                    environment["formsauthn.remember"] = rememberMe;
                }
            }
        }
 public OwinRequestMessage(OwinRequest request)
     : base(request.Body, request.GetHeader(HawkConstants.ContentTypeHeaderName))
 {
     this.request = request;
 }