/// <summary>
/// Process returns a file stream containing album art
/// </summary>
public void Process(UriWrapper uri, IHttpProcessor processor, User user)
{
// Check for the itemId
if (uri.Id == null)
{
processor.WriteErrorHeader();
return;
}
// Check for blur (value between 0 and 100)
double blurSigma = 0;
if (uri.Parameters.ContainsKey("blur"))
{
int blur = 0;
Int32.TryParse(uri.Parameters["blur"], out blur);
if (blur < 0)
{
blur = 0;
}
else if (blur > 100)
{
blur = 100;
}
blurSigma = (double)blur / 10.0;
}
// Grab art stream
Art art = Injection.Kernel.Get <IArtRepository>().ArtForId((int)uri.Id);
Stream stream = CreateStream(art);
// If the stream could not be produced, return error
if ((object)stream == null)
{
processor.WriteErrorHeader();
return;
}
// If art size requested...
if (uri.Parameters.ContainsKey("size"))
{
int size = Int32.MaxValue;
Int32.TryParse(uri.Parameters["size"], out size);
// Parse size if valid
if (size != Int32.MaxValue)
{
bool imageMagickFailed = false;
if (ServerUtility.DetectOS() != ServerUtility.OS.Windows)
{
// First try ImageMagick
try {
Byte[] data = ResizeImageMagick(stream, size, blurSigma);
stream = new MemoryStream(data, false);
} catch {
imageMagickFailed = true;
}
}
// If ImageMagick dll isn't loaded, or this is Windows,
if (imageMagickFailed || ServerUtility.DetectOS() == ServerUtility.OS.Windows)
{
// Resize image, put it in memory stream
Image resized = ResizeImageGDI(new Bitmap(stream), new Size(size, size));
stream = new MemoryStream();
resized.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);
}
}
}
DateTime?lastModified = null;
if (!ReferenceEquals(art.LastModified, null))
{
lastModified = ((long)art.LastModified).ToDateTime();
}
processor.WriteFile(stream, 0, stream.Length, HttpHeader.MimeTypeForExtension(".jpg"), null, true, lastModified);
// Close the file so we don't get sharing violations on future accesses
stream.Close();
}