public override void OnException(ExceptionContext filterContext)
{
if (filterContext == null)
{
throw new ArgumentNullException("filterContext");
}
// If custom errors are disabled, we need to let the normal ASP.NET exception handler
// execute so that the user can see useful debugging information.
if (filterContext.ExceptionHandled || !filterContext.HttpContext.IsCustomErrorEnabled)
{
return;
}
Exception exception = filterContext.Exception;
// If this is not an HTTP 500 (for example, if somebody throws an HTTP 404 from an action method),
// ignore it.
if (new HttpException(null, exception).GetHttpCode() != 500)
{
return;
}
if (!ExceptionType.IsInstanceOfType(exception))
{
return;
}
string controllerName = (string)filterContext.RouteData.Values["controller"];
string actionName = (string)filterContext.RouteData.Values["action"];
HandleErrorInfo model = new HandleErrorInfo(filterContext.Exception, controllerName, actionName);
if (this._logger.IsErrorEnabled)
{
this._logger.Error(string.Format("An unexpected error occured while executing {0} in {1}.", actionName, controllerName), exception);
}
MessageViewData messageViewData = new MessageViewData();
while (exception != null)
{
messageViewData.AddErrorMessage(this._localizer.GetString(exception.Message));
exception = exception.InnerException;
}
var viewData = new ViewDataDictionary<HandleErrorInfo>(model);
viewData["Messages"] = messageViewData;
// Render error view
filterContext.Result = new ViewResult
{
ViewName = View,
MasterName = Master,
ViewData = viewData,
TempData = filterContext.Controller.TempData
};
filterContext.ExceptionHandled = true;
filterContext.HttpContext.Response.Clear();
filterContext.HttpContext.Response.StatusCode = 500;
}
/// <summary>
/// Gets a <see cref="MessageViewData"></see> object for the messages that were added
/// during the current request.
/// </summary>
/// <returns></returns>
public MessageViewData GetFlashMessages()
{
MessageViewData flashMessageViewData = new MessageViewData();
foreach (KeyValuePair <string, IList <string> > flashMessagesForKey in this._flashMessages)
{
flashMessageViewData.Messages[flashMessagesForKey.Key] = flashMessagesForKey.Value;
}
return(flashMessageViewData);
}
private void InitMessageViewData(ActionExecutingContext filterContext)
{
var currentController = filterContext.Controller;
this._tempData = currentController.TempData;
if (this._tempData.ContainsKey("Messages"))
{
this._messageViewData = new MessageViewData((MessageViewData)this._tempData["Messages"]);
}
else
{
this._messageViewData = new MessageViewData();
}
this._messageViewData.FlashMessageAdded += new EventHandler(MessageViewData_FlashMessageAdded);
currentController.ViewData["Messages"] = this._messageViewData;
}
/// <summary>
/// Creates a new instance of the <see cref="MessageViewData"></see> class.
/// </summary>
/// <param name="messagesFromPreviousRequest">Messages from the previous request (TempData)</param>
public MessageViewData(MessageViewData messagesFromPreviousRequest)
{
Initialize();
if (messagesFromPreviousRequest != null)
{
foreach (KeyValuePair <string, IList <string> > messages in messagesFromPreviousRequest.Messages)
{
this._messages[messages.Key] = messages.Value;
}
foreach (KeyValuePair <string, object[]> messageParam in messagesFromPreviousRequest.MessageParams)
{
this._messageParams.Add(messageParam.Key, messageParam.Value);
}
}
}
/// <summary>
/// Creates a new instance of the <see cref="MessageViewData"></see> class.
/// </summary>
/// <param name="messagesFromPreviousRequest">Messages from the previous request (TempData)</param>
public MessageViewData(MessageViewData messagesFromPreviousRequest)
{
Initialize();
if (messagesFromPreviousRequest != null)
{
foreach (KeyValuePair<string, IList<string>> messages in messagesFromPreviousRequest.Messages)
{
this._messages[messages.Key] = messages.Value;
}
foreach (KeyValuePair<string, object[]> messageParam in messagesFromPreviousRequest.MessageParams)
{
this._messageParams.Add(messageParam.Key, messageParam.Value);
}
}
}
/// <summary>
/// Gets a <see cref="MessageViewData"></see> object for the messages that were added
/// during the current request.
/// </summary>
/// <returns></returns>
public MessageViewData GetFlashMessages()
{
MessageViewData flashMessageViewData = new MessageViewData();
foreach (KeyValuePair<string, IList<string>> flashMessagesForKey in this._flashMessages)
{
flashMessageViewData.Messages[flashMessagesForKey.Key] = flashMessagesForKey.Value;
}
return flashMessageViewData;
}
