public static Task UnsafeFormatterWithDetails(Exception exception, HttpContext httpContext, HandlerContext handlerContext) => httpContext.Response.WriteAsync(exception.ToString());
public static Task SafeFormatterWithDetails(Exception exception, HttpContext httpContext, HandlerContext handlerContext)
=> httpContext.Response.WriteAsync("An error occurred while processing your request");
internal RequestDelegate BuildHandler()
{
var handlerContext = new HandlerContext {
ContentType = ContentType
};
var exceptionContext = new ExceptionContext();
_exceptionConfigurationTypesSortedByDepthDescending = ExceptionConfiguration.Keys
.OrderByDescending(x => x, new ExceptionTypePolymorphicComparer())
.ToArray();
return(async context =>
{
var handlerFeature = context.Features.Get <IExceptionHandlerFeature>();
var exception = handlerFeature.Error;
if (ContentType != null)
{
context.Response.ContentType = ContentType;
}
// If any custom exceptions are set
foreach (var type in _exceptionConfigurationTypesSortedByDepthDescending)
{
// ReSharper disable once UseMethodIsInstanceOfType TODO: Fire those guys
if (!type.IsAssignableFrom(exception.GetType()))
{
continue;
}
var config = ExceptionConfiguration[type];
context.Response.StatusCode = config.StatusCodeResolver?.Invoke(exception) ?? DefaultStatusCode;
if (config.Formatter == null)
{
config.Formatter = CustomFormatter;
}
if (_onException != null)
{
exceptionContext.Exception = handlerFeature.Error;
exceptionContext.HttpContext = context;
exceptionContext.ExceptionMatched = type;
await _onException(exceptionContext, _logger);
}
await config.Formatter(exception, context, handlerContext);
return;
}
// Global default format output
if (CustomFormatter != null)
{
if (context.Response.HasStarted)
{
if (_onException != null)
{
await _onException(exceptionContext, _logger);
}
_logger.LogError("The response has already started, the exception handler will not be executed.");
return;
}
context.Response.StatusCode = DefaultStatusCode;
await CustomFormatter(exception, context, handlerContext);
if (_onException != null)
{
exceptionContext.Exception = handlerFeature.Error;
await _onException(exceptionContext, _logger);
}
return;
}
if (_onException != null)
{
exceptionContext.Exception = handlerFeature.Error;
exceptionContext.ExceptionMatched = null;
await _onException(exceptionContext, _logger);
}
if (DebugMode)
{
await DefaultFormatter(exception, context, handlerContext);
}
});
}
