public override RequestStatus ProcessRequest(ResourceResponse request, bool prioritized)
{
try
{
var httpRequest = WebRequest.CreateHttp(request.Uri);
httpRequest.Accept = request.Accept;
using (var httpResponse = httpRequest.GetResponse() as HttpWebResponse)
{
if (httpResponse.StatusCode == HttpStatusCode.NotFound)
{
return(RequestStatus.NotFound);
}
if (httpResponse.StatusCode != HttpStatusCode.OK)
{
return(RequestStatus.ProtocolError);
}
var resourceStream = new ResourceStream(httpResponse);
request.OnResponseStream(resourceStream);
return(request.Status);
}
}
catch (Exception exc)
{
request.Fault = exc;
return(RequestStatus.Faulted);
}
}
private bool ValidateContentTypeForImage(ResourceStream stream)
{
switch (stream.ContentType.ToLowerInvariant())
{
case "image/jpg":
case "image/jpeg":
case "image/png":
case "image/bmp":
case "image/gif":
return(true);
default:
return(false);
}
}
private void OnPostImageResponse(Uri uri, ResourceStream stream)
{
if (!ValidateContentTypeForImage(stream))
{
return;
}
try
{
_postImage = Image.Load <Rgba32>(stream);
}
catch (Exception exc)
{
IsPostImageFaulted = true;
Console.WriteLine(exc);
}
IsPostImageDownloaded = true;
}
public override RequestStatus ProcessRequest(ResourceResponse request, bool prioritized)
{
var headers = new WebHeaderCollection();
if (!string.IsNullOrWhiteSpace(request.Accept))
{
headers.Add(HttpRequestHeader.Accept, request.Accept);
}
string path = UriToCachePath(request.Uri);
if (!File.Exists(path))
{
return(RequestStatus.NotFound);
}
var resourceStream = new ResourceStream(File.OpenRead(path), headers);
request.OnResponseStream(resourceStream);
return(request.Status);
}