public virtual async Task <FileAndDir> SaveImageAsync(IFormFile file, ResizeOptions resizeOptions)
{
var ext = GetAllowedExtension(file.FileName);
if (ext == null)
{
throw new SunException($"Not allowed extension");
}
if (ext == ".svg" && file.Length >= MaxSvgSizeBytes)
{
throw new SunException($"Svg max size is {MaxSvgSizeBytes / 1024} kb");
}
else
{
await using var stream = file.OpenReadStream();
if (!IsAllowedImageFormat(Image.DetectFormat(stream).Name))
{
throw new SunException("Not allowed image format");
}
var imageInfo = Image.Identify(stream);
if (imageInfo.Width > imagesOptions.CurrentValue.MaxImageWidth ||
imageInfo.Height > imagesOptions.CurrentValue.MaxImageHeight)
{
throw new SunException(
$"Very big image. Max image height, width is {imagesOptions.CurrentValue.MaxImageHeight}, {imagesOptions.CurrentValue.MaxImageWidth}");
}
}
var fileAndDir = imagesNamesService.GetNewImageNameAndDir(ext);
var dirFullPath = Path.Combine(UploadImagesDir, fileAndDir.Dir);
var fullFileName = Path.Combine(dirFullPath, fileAndDir.File);
lock (lockObject)
if (!Directory.Exists(dirFullPath))
{
Directory.CreateDirectory(dirFullPath);
}
if (ext == ".svg")
{
await using var stream = new FileStream(fullFileName, FileMode.Create);
await file.CopyToAsync(stream);
}
else
{
await using var stream = file.OpenReadStream();
using var image = Image.Load(stream);
var(width, height) = image.Size();
if (width > resizeOptions.Size.Width || height > resizeOptions.Size.Height)
{
image.Mutate(x => x.Resize(resizeOptions));
}
image.Save(fullFileName);
}
return(fileAndDir);
}
public virtual async Task <FileAndDir> SaveImageAsync(IFormFile file, ResizeOptions resizeOptions)
{
var ext = GetAllowedExtension(file.FileName);
if (ext == null)
{
throw new Exception($"Not allowed extension");
}
if (ext == ".svg" && file.Length >= MaxSvgSizeBytes)
{
throw new Exception($"Svg max size is {MaxSvgSizeBytes / 1024} kb");
}
var fileAndDir = imagesNamesService.GetNewImageNameAndDir(ext);
var dirFullPath = Path.Combine(env.WebRootPath, imagesOptions.UploadDir, fileAndDir.Dir);
var fullFileName = Path.Combine(dirFullPath, fileAndDir.File);
lock (lockObject)
if (!Directory.Exists(dirFullPath))
{
Directory.CreateDirectory(dirFullPath);
}
if (ext == ".svg")
{
using (var stream = new FileStream(fullFileName, FileMode.Create))
await file.CopyToAsync(stream);
}
else
{
using (var stream = file.OpenReadStream())
using (Image <Rgba32> image = Image.Load(stream))
{
var size = image.Size();
if (size.Width > resizeOptions.Size.Width || size.Height > resizeOptions.Size.Height)
{
image.Mutate(x => x.Resize(resizeOptions));
}
image.Save(fullFileName);
}
}
return(fileAndDir);
}