/// <summary>
/// Handle custom resource request and forward it to the appropriate frame.
/// </summary>
/// <param name="url"></param>
/// <returns></returns>
private void HandleCustomResourceRequested(ResourceHandler resourceHandler)
{
var url = resourceHandler.Url;
if (Uri.TryCreate(url, UriKind.Absolute, out var uri) && uri.Segments.Length > 1 && uri.Host.Equals(CustomResourceBaseUrl, StringComparison.InvariantCultureIgnoreCase))
{
var frameName = uri.Segments.ElementAt(1).TrimEnd(ResourceUrl.PathSeparator.ToCharArray());
if (frameName != null && Frames.TryGetValue(frameName, out var frame))
{
var customResourceRequestedHandlers = GetCustomResourceHandlers(frame);
if (customResourceRequestedHandlers.Any())
{
resourceHandler.BeginAsyncResponse(() => {
// get resource key from the query params
var resourceKeyAndOptions = uri.Query.TrimStart('?').Split(new[] { '&' }, StringSplitOptions.RemoveEmptyEntries).Select(p => Uri.UnescapeDataString(p));
var resourceKey = resourceKeyAndOptions.FirstOrDefault();
var options = resourceKeyAndOptions.Skip(1).ToArray();
// get response from first handler that returns a stream
var response = customResourceRequestedHandlers.Select(h => h(resourceKey, options)).FirstOrDefault(r => r?.Content != null);
if (response != null)
{
var extension = (response.Extension ?? Path.GetExtension(resourceKey)).TrimStart('.');
resourceHandler.RespondWith(response.Content, extension);
}
else
{
resourceHandler.RespondWith(MemoryStream.Null);
}
});
}
}
}
}
