private async Task UploadResizedAsync(IFormFile file, string id,
CancellationToken ct)
{
await using var assetResized = TempAssetFile.Create(file.ToAssetFile());
var resizeOptions = new ResizeOptions
{
TargetWidth = 128,
TargetHeight = 128
};
try
{
await using (var originalStream = file.OpenReadStream())
{
await using (var resizeStream = assetResized.OpenWrite())
{
await assetThumbnailGenerator.CreateThumbnailAsync(originalStream, file.ContentType, resizeStream, resizeOptions, ct);
}
}
}
catch
{
throw new ValidationException(T.Get("validation.notAnImage"));
}
await using (var resizeStream = assetResized.OpenWrite())
{
await userPictureStore.UploadAsync(id, resizeStream, ct);
}
}
public async Task EnhanceAsync(MetadataRequest request)
{
var file = request.File;
if (request.Type != MediaType.Unknown)
{
return;
}
var mimeType = file.MimeType;
ImageInfo?imageInfo = null;
await using (var uploadStream = file.OpenRead())
{
imageInfo = await assetThumbnailGenerator.GetImageInfoAsync(uploadStream, mimeType);
}
if (imageInfo != null)
{
var isSwapped = imageInfo.Orientation > ImageOrientation.TopLeft;
if (isSwapped)
{
var tempFile = TempAssetFile.Create(file);
await using (var uploadStream = file.OpenRead())
{
await using (var tempStream = tempFile.OpenWrite())
{
await assetThumbnailGenerator.FixOrientationAsync(uploadStream, mimeType, tempStream);
}
}
await using (var tempStream = tempFile.OpenRead())
{
imageInfo = await assetThumbnailGenerator.GetImageInfoAsync(tempStream, mimeType) ?? imageInfo;
}
await file.DisposeAsync();
request.File = tempFile;
}
}
if (imageInfo != null)
{
request.Type = MediaType.Image;
request.Metadata.SetPixelWidth(imageInfo.PixelWidth);
request.Metadata.SetPixelHeight(imageInfo.PixelHeight);
}
}
public async Task EnhanceAsync(UploadAssetCommand command)
{
if (command.Type == AssetType.Unknown || command.Type == AssetType.Image)
{
var mimeType = command.File.MimeType;
ImageInfo?imageInfo = null;
await using (var uploadStream = command.File.OpenRead())
{
imageInfo = await assetThumbnailGenerator.GetImageInfoAsync(uploadStream, mimeType);
}
if (imageInfo != null)
{
var isSwapped = imageInfo.Orientation > ImageOrientation.TopLeft;
if (command.File != null && isSwapped)
{
var tempFile = TempAssetFile.Create(command.File);
await using (var uploadStream = command.File.OpenRead())
{
await using (var tempStream = tempFile.OpenWrite())
{
await assetThumbnailGenerator.FixOrientationAsync(uploadStream, mimeType, tempStream);
}
}
await using (var tempStream = tempFile.OpenRead())
{
imageInfo = await assetThumbnailGenerator.GetImageInfoAsync(tempStream, mimeType) ?? imageInfo;
}
await command.File.DisposeAsync();
command.File = tempFile;
}
if (command.Type == AssetType.Unknown || isSwapped)
{
command.Type = AssetType.Image;
command.Metadata.SetPixelWidth(imageInfo.PixelWidth);
command.Metadata.SetPixelHeight(imageInfo.PixelHeight);
}
}
}
if (command.Tags == null)
{
return;
}
if (command.Type == AssetType.Image)
{
command.Tags.Add("image");
var wh = command.Metadata.GetPixelWidth() + command.Metadata.GetPixelWidth();
if (wh > 2000)
{
command.Tags.Add("image/large");
}
else if (wh > 1000)
{
command.Tags.Add("image/medium");
}
else
{
command.Tags.Add("image/small");
}
}
}