private async Task <dynamic> ImageInfo(dynamic parameters, CancellationToken token)
{
try
{
var filename = parameters.id;
var imageUri = new Uri(new Uri(Conf.Location), filename);
var requestId = Context.GetOwinEnvironment()["RequestId"] as string;
(var maxWidth, var maxHeight, var maxArea) = GetSizeConstraints(Conf);
var processor = new ImageProcessing.ImageProcessing {
HttpClient = HttpClient, Log = Log
};
var metadata = await processor.GetImageInfo(imageUri, Conf.DefaultTileWidth, requestId);
var full_id = Conf.BaseUri == null?
Request.Url.ToString().Replace("/info.json", "") :
string.Format("{0}ark:/{1}/{2}", Conf.BaseUri.ToString(), parameters.naan, parameters.id);
var info = new ImageInfo(metadata, Conf, maxWidth, maxHeight, maxArea)
{
ID = full_id,
};
Log.Debug("{@ImageInfo}", info);
return(await Negotiate
.WithAllowedMediaRange(new MediaRange("application/json"))
.WithAllowedMediaRange(new MediaRange("application/ld+json"))
.WithHeader("Link", null) // hide nancy automatic Link: rel="alternative"
.WithModel(info));
}
catch (FileNotFoundException e)
{
Log.Error("Unable to load source image @{FileName}", e.FileName);
return(HttpStatusCode.NotFound);
}
catch (NotImplementedException e)
{
Log.Information(e, "Un-implemented feature requested");
return(HttpStatusCode.BadRequest);
}
catch (ArgumentException e)
{
Log.Error(e, "Error parsing argument");
return(HttpStatusCode.BadRequest);
}
catch (Exception e)
{
Log.Error(e, "Unexpected exception");
return(HttpStatusCode.InternalServerError);
}
}
