/// <summary>
/// An error have occurred and we need to send a result pack to the client
/// </summary>
/// <param name="context">The context.</param>
/// <param name="exception">The exception.</param>
/// <remarks>
/// Invoke base class (<see cref="Server"/>) to send the contents
/// of <see cref="IHttpContext.Response"/>.
/// </remarks>
protected virtual void DisplayErrorPage(IHttpContext context, Exception exception)
{
var httpException = exception as HttpException;
if (httpException != null)
{
context.Response.Reason = httpException.Code.ToString();
context.Response.Status = httpException.Code;
}
else
{
context.Response.Reason = "Internal Server Error";
context.Response.Status = HttpStatusCode.InternalServerError;
}
var args = new ErrorPageEventArgs(context)
{
Exception = exception
};
ErrorPageRequested(this, args);
var writer = HttpFactory.Current.Get <ResponseWriter>();
if (args.IsHandled)
{
writer.Send(context, context.Response);
}
else
{
writer.SendErrorPage(context, context.Response, exception);
args.IsHandled = true;
}
}
private void SendErrorPage(Exception exception)
{
var httpException = exception as HttpException;
var response = HttpContext.Current.Response;
response.Status = httpException != null ? httpException.Code : HttpStatusCode.InternalServerError;
response.Reason = exception.Message;
if (response.Body.CanWrite)
{
response.Body.SetLength(0);
}
var args = new ErrorPageEventArgs(HttpContext.Current)
{
Exception = exception
};
ErrorPageRequested(this, args);
try
{
var generator = new ResponseWriter();
if (args.IsHandled)
{
generator.Send(HttpContext.Current, response);
}
else
{
generator.SendErrorPage(HttpContext.Current, response, exception);
}
}
catch (Exception err)
{
_logger.Error("Failed to display error page", err);
}
}
private void Listener_OnErrorPage(object sender, ErrorPageEventArgs e)
{
_server = this;
DisplayErrorPage(e.Context, e.Exception);
e.IsHandled = true;
}