static void SendEmail(HttpException exception, string appName, MailAddress from, MailAddress to)
{
Trace.TraceInformation("[RazorRenderExceptionHelper]: Preparing to send email to developer");
string body = exception.GetHtmlErrorMessage();
bool html = true;
if (string.IsNullOrWhiteSpace(body))
{
body = exception.ToString();
html = false;
}
string subject = string.Format("Exception for app: {0}, at {1}", appName, DateTime.Now);
EmailExtensions.SendEmail(from, to, subject, body, !html,
(message, ex) =>
{
if (ex == null)
{
Trace.TraceInformation("[RazorRenderExceptionHelper]: Email was sent to {0}",
to);
}
else
{
Trace.TraceError("[RazorRenderExceptionHelper]: Failed to send email. {0}", ex.Message);
LogEvent.Raise(exception.Message, exception.GetBaseException());
}
});
}
internal static void ThrowException(Application app, HttpException ex)
{
int status = ex.GetHttpCode();
app.Context.Response.Cache.SetCacheability(HttpCacheability.NoCache);
app.Context.Response.StatusCode = status;
Exception e = ex.GetBaseException();
string msg;
if (e is TemplateException)
{
msg = FormatMessage(e.Message);
}
else
{
msg = string.Concat(@"<!DOCTYPE html>
<html>
<head>
<title>", status.ToString(), " ", HttpWorkerRequest.GetStatusDescription(status), @"</title>
</head>
<body>", FormatMessage(string.Concat(e.Message, "\r\n", e.StackTrace)), @"</body>
</html>");
}
app.Context.Response.Write(msg);
app.Context.Response.End();
}
public HttpContextError(HttpException exception, HttpContextBase httpContext)
: base(new Error(exception.GetBaseException()))
{
HttpContext = httpContext;
HttpException = exception;
Error.WithLocation(HttpContext.GetUrl())
.SetPlatform("ASP.NET");
}
public virtual void HandleError()
{
var server = Application.Server;
var response = Application.Response;
Exception ex = server.GetLastError();
HttpException httpException = ex as HttpException
?? new HttpException("Generic exception...", ex);
var rootException = httpException.GetBaseException();
Trace.TraceError("Exception: {0}", rootException.Message);
if (IsProduction())
{
//log or send email to developer notifiying the exception ?
LogAction(httpException);
//server.ClearError();
}
var statusCode = httpException.GetHttpCode();
//setar o statuscode para que o IIS selecione a view correta (no web.config)
response.StatusCode = statusCode;
response.StatusDescription = rootException.Message; //todo: colocar uma msg melhor
switch (statusCode)
{
case 404:
break; //IIS will handle 404
case 500:
{
//check for exception type you want to show custom message
if (rootException is TException)
{
server.ClearError();
response.TrySkipIisCustomErrors = true;
response.Clear();
try
{
RenderCustomException(rootException as TException);
}
catch
{
//fallback to response.Write
response.Write(rootException.ToString());
}
}
break; //IIS will handle 500
}
}
}
static void LogActionEx(HttpException exception)
{
var status = exception.GetHttpCode();
if (status < 500)
{
return;
}
LogEvent.Raise(exception.Message, exception.GetBaseException());
using (var smptClient = new SmtpClient())
{
//todo: Enviar async
smptClient.Send("Admin", BootstrapperSection.Instance.Mail.MailDeveloper, "Exception " + status, exception.ToString());
}
}
static void LogActionEx(HttpException exception)
{
var status = exception.GetHttpCode();
if (status < 500)
{
return;
}
var cfg = BootstrapperSection.Instance;
if (cfg.Mail.SendExceptionToDeveloper &&
(HttpContext.Current == null || !HttpContext.Current.IsDebuggingEnabled))
{
ThreadPool.QueueUserWorkItem(x => SendEmail(exception, cfg.AppName, new MailAddress(cfg.Mail.MailAdmin, "Admin"),
new MailAddress(cfg.Mail.MailDeveloper, "Developer")));
}
else
{
LogEvent.Raise(exception.Message, exception.GetBaseException());
}
}
public virtual void HandleError()
{
var server = ApplicationInstance.Server;
var response = ApplicationInstance.Response;
Exception ex = server.GetLastError();
if (ex is ThreadAbortException)
{
//Esta exception é lançada quando utiliza-se Response.Redirect(url, true).
//O correto é Response.REdirect(url, false); CompleteRequest()
//mas em alguns casos, é necessário parar imediatamente o processamento da página,
//lançando um threadabortexception com Response.End()
Trace.TraceInformation("Ignoring Thread abort: " + ex.Message);
return;
}
HttpException httpException = ex as HttpException
?? new HttpException("Generic exception...", ex);
var rootException = httpException.GetBaseException();
//todo: use HttpContext.Current.Items !!!
//stores exception in session for later retrieval
if (ApplicationInstance.Context.Handler is IRequiresSessionState ||
ApplicationInstance.Context.Handler is IReadOnlySessionState)
{
// Session exists
ApplicationInstance.Session["exception"] = rootException;
}
else if (HttpContext.Current != null)
{
HttpContext.Current.Items["exception"] = rootException;
}
Trace.TraceError("[ExceptionHelper]: {0}", rootException.Message);
if (IsProduction())
{
//log or send email to developer notifiying the exception ?
LogAction(httpException);
server.ClearError(); //limpar o erro para exibir a página customizada
}
if (response.StatusCode == 302)
{
server.ClearError();
return;
}
var statusCode = httpException.GetHttpCode();
//setar o statuscode para que o IIS selecione a view correta (no web.config)
response.StatusCode = statusCode;
response.StatusDescription = rootException.Message; //todo: colocar uma msg melhor
switch (statusCode)
{
case 401: break;
case 403:
{
if (ApplicationInstance.Request.IsAuthenticated && ApplicationInstance.Response.StatusCode == 403)
{
bool isAjax = ApplicationInstance.Request.IsAjaxRequest();
if (!isAjax)
{
ApplicationInstance.Response.Write("Você está autenticado mas não possui permissões para acessar este recurso");
}
}
break;
};
case 404:
break; //IIS will handle 404
case 500:
{
//check for exception type you want to show custom message
if (rootException is TException)
{
server.ClearError();
response.TrySkipIisCustomErrors = true;
response.Clear();
try
{
RenderCustomException(rootException as TException);
}
catch
{
//fallback to response.Write
response.Write(rootException.ToString());
}
}
break; //IIS will handle 500
}
default:
{
break;
}
}
}