/// <summary>
/// Executes the Exceptional-wrapped middleware.
/// </summary>
public async Task Invoke(HttpContext context)
{
try
{
await _next.Invoke(context);
}
catch (Exception ex)
{
_logger.LogError(0, ex, "An unhandled exception has occurred, logging to Exceptional");
var error = await ex.LogAsync(context);
// If options say to do so, show the exception page to the user
if (Settings.Current.UseExceptionalPageOnThrow && error != null)
{
var response = context.Response;
if (context.Response.HasStarted)
{
_logger.LogWarning("The response has already started, the Exceptional error page will not be displayed.");
throw;
}
try
{
response.HttpContext.Features.Get <IHttpResponseFeature>().ReasonPhrase = null;
response.Headers.Clear();
if (response.Body.CanSeek)
{
response.Body.SetLength(0);
}
response.StatusCode = 500;
var page = new ErrorDetailPage(error, Settings.Current.DefaultStore, "", error.GUID)
{
HeaderTitle = "An error was thrown during this request.",
PageTitle = "An error was thrown during this request.",
InlineCSS = true,
IncludeJS = false,
ShowActionLinks = false
};
response.ContentType = "text/html";
await response.WriteAsync(page.Render());
return;
}
catch (Exception pex)
{
_logger.LogError(0, pex, "An exception was thrown attempting to display the Exceptional page.");
}
}
throw;
}
}
public void RendersNullCustomData()
{
var settings = new ExceptionalSettings();
var ex = new Exception("My exception");
var error = new Error(ex, settings, initialCustomData: new Dictionary <string, string>
{
["MyData"] = null
});
var errorPage = new ErrorDetailPage(error, settings, settings.DefaultStore, "/", error.GUID);
Assert.NotNull(errorPage);
var rendered = errorPage.Render();
Assert.NotNull(rendered);
Assert.Contains("var Exception = ", rendered);
Assert.Contains("MyData", rendered);
}