public static void HandleProblemDetailsException(this ExceptionContext context, Exception exception)
{
var ex = HttpProblemDetailException.FromException(exception);
if (ex == null)
{
return;
}
//context.HttpContext.Response.ContentType = GetContentTypeStringForContext(context.HttpContext);
//context.HttpContext.Response.StatusCode = ex.ProblemDetail.Status;
context.Result = new ObjectResult(ex.ProblemDetail)
{
StatusCode = ex.ProblemDetail.Status,
//ContentTypes = new MediaTypeCollection { new MediaTypeHeaderValue(GetContentTypeStringForContext(context.HttpContext)) },
DeclaredType = typeof(IHttpProblemDetail)
};
}
public static void HandleProblemDetailsException(this HttpContext context, Exception exception)
{
var ex = HttpProblemDetailException.FromException(exception);
if (ex == null)
{
return;
}
var json = JsonConvert.SerializeObject(ex.ProblemDetail);
context.Response.ContentType = GetContentTypeStringForContext(context);
context.Response.StatusCode = ex.ProblemDetail.Status;
var data = Encoding.UTF8.GetBytes(json);
context.Response.ContentLength = data.Length;
context.Response.Body.WriteAsync(data, 0, data.Length)
.Wait();
}
public override void OnException(HttpActionExecutedContext actionExecutedContext)
{
var ex = HttpProblemDetailException.FromException(actionExecutedContext.Exception);
if (ex == null)
{
return;
}
// get formatter from content negotiator
var configuration = actionExecutedContext.ActionContext.ControllerContext.Configuration;
var contentNegotiator = configuration.Services.GetContentNegotiator();
var connegResult = contentNegotiator.Negotiate(typeof(IHttpProblemDetail), actionExecutedContext.Request, configuration.Formatters);
var formatter = connegResult.Formatter;
// return object content
actionExecutedContext.Response = new HttpResponseMessage((HttpStatusCode)ex.ProblemDetail.Status)
{
Content = new ObjectContent(typeof(IHttpProblemDetail), ex.ProblemDetail, formatter, GetContentTypeStringForContext(actionExecutedContext))
};
}
/// <summary>
/// Enable HttpProblemDetails support in the application
/// </summary>
/// <param name="pipelines">Application pipeline to hook into</param>
/// <param name="responseNegotiator">An <see cref="IResponseNegotiator"/> instance.</param>
public static void Enable(IPipelines pipelines, IResponseNegotiator responseNegotiator)
{
var httpProblemDetailsEnabled = pipelines.AfterRequest.PipelineItems.Any(ctx => ctx.Name == nameof(HttpProblemDetails));
if (!httpProblemDetailsEnabled)
{
pipelines.OnError.AddItemToEndOfPipeline((context, exception) =>
{
var ex = HttpProblemDetailException.FromException(exception);
if (ex == null)
{
return(context.Response);
}
var negotiator = new Negotiator(context)
.WithContentType(GetContentTypeForContext(context))
.WithStatusCode(ex?.ProblemDetail?.Status ?? 0)
.WithModel(ex.ProblemDetail);
return(responseNegotiator.NegotiateResponse(negotiator, context));
});
}
}