public static T DeserializeUrl <T>(string url) where T : class
{
using (WebClientBase wc = new WebClientBase())
using (Stream stream = wc.DownloadToStream(url))
{
if (stream == null)
{
return(null);
}
using (StreamReader streamReader = new StreamReader(stream))
using (JsonReader reader = new JsonTextReader(streamReader))
{
JsonSerializer serializer = new JsonSerializer();
try
{
return(serializer.Deserialize <T>(reader));
}
catch
{
Log.WriteError("Deserializing of {0} from url {1} failed", typeof(T).ToString(), url);
return(null);
}
}
}
}
public static void GetWebImageDimensions(string url, Action <ImageInfo> callback)
{
webClient.KeepAlive = true;
var fileSize = webClient.GetContentLength(url);
if (fileSize > 0)
{
using (var stream = webClient.DownloadPartial(url, 0, 30))
using (var binaryReader = new BinaryReader(stream))
{
if (callback != null)
{
ImageInfo imageInfo = null;
try
{
imageInfo = GetDimensions(binaryReader);
imageInfo.FileSize = fileSize;
}
catch
{
Log.WriteError("measuring image {0}", url);
}
callback(imageInfo ?? new ImageInfo());
}
}
}
else
{
using (Stream stream = webClient.DownloadToStream(url))
{
Image testImage = Image.FromStream(stream);
var imageInfo = new ImageInfo()
{
Format = testImage.RawFormat,
Dimensions = testImage.Size,
};
callback(imageInfo);
}
}
}