private ImageFormat Add(Guid imageId, string?sizeId, Stream stream, ImageOptions options)
{
if (options.ValidateSource != null)
{
if (!stream.CanSeek)
{
var oldStream = stream;
stream = new MemoryStream();
oldStream.CopyTo(stream);
}
long startPosition = stream.Position;
using var validateImage = Image.FromStream(stream, false, false);
options.ValidateSource.Invoke(validateImage);
stream.Position = startPosition;
}
var image = Image.FromStream(stream);
try {
RotateImageByExifOrientationData(image);
ImageFormat format;
if (options.ImageEditor != null)
{
var editedImage = options.ImageEditor.ApplyEdits(image);
format = GetImageFormat(image, editedImage, options);
if (editedImage != null)
{
image.Dispose();
image = editedImage;
}
}
else
{
format = GetImageFormat(image, null, options);
}
var path = GetAbsoluteImagePath(new ImageKey(imageId, format), sizeId);
var encoderParams = new EncoderParameters(1);
encoderParams.Param[0] = new EncoderParameter(Encoder.Quality, options.JpegQuality);
CreateDirectory:
if (string.IsNullOrWhiteSpace(sizeId))
{
path.ParentDirectory.Create();
}
try {
image.Save(path.PathExport, _jpegEncoder, encoderParams);
}
catch (DirectoryNotFoundException) when(string.IsNullOrWhiteSpace(sizeId))
{
goto CreateDirectory; // avoid race condition for directory removal during delete prior to image saving.
}
return(format);
}
finally {
image.Dispose();
}
}
