public void OnResultExecuting(ResultExecutingContext context)
{
switch (context.Result)
{
case StatusCodeResult result:
{
var status = (HttpStatusCode)result.StatusCode;
context.Result = ResultUtilities.Status(status);
break;
}
case ObjectResult result:
{
var status = (HttpStatusCode)(result.StatusCode ?? 200);
var type = result.Value?.GetType();
// ensure something is returned, instead of an empty response
if (type == null)
{
context.Result = ResultUtilities.Status(status);
}
// wrap string responses
else if (type == typeof(string))
{
context.Result = ResultUtilities.Status(status, (string)result.Value);
}
break;
}
}
}
public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
{
var control = context.HttpContext.RequestServices.GetService <IWriteControl>();
var environment = context.HttpContext.RequestServices.GetService <IHostEnvironment>();
try
{
await using (await control.EnterAsync())
await next();
}
catch (WriteControlException e)
{
context.Result = ResultUtilities.Status(HttpStatusCode.ServiceUnavailable, e.ToStringWithTrace("Could not complete this request at the moment due to maintenance.", environment.IsProduction()));
}
}