public ImagemDTO BaixarImagem(int id)
{
ImagemDTO imagemDto = null;
var produto = _repository.Obter(id);
if (produto != null)
{
if (!string.IsNullOrEmpty(produto.Imagem))
{
imagemDto = new ImagemDTO()
{
Stream = _imageStorage.BaixarImagem(produto.Imagem),
ContentType = LocalImageStorage.GetImageMimeTypeFromImageFileExtension(produto.Imagem)
}
}
;
else
{
imagemDto = new ImagemDTO()
{
Stream = _imageStorage.BaixarImagem(),
ContentType = LocalImageStorage.GetImageMimeTypeFromImageFileExtension(LocalImageStorage.NOT_FOUND_IMAGE)
}
};
}
return(imagemDto);
}
private IImageStorage CreateImageStorage()
{
IImageStorage storage;
if (Environment.IsProduction())
{
storage = new AzureBlobImageStorage(new AzureBlobClientFactory(Configuration.BlobStorageConnectionString, "images"));
}
else
{
string imageOutputPath = Path.Combine(Environment.WebRootPath, IMAGE_DIRECTORY_NAME);
string imageBaseUri = Path.Combine(Configuration.BaseUrl, STATIC_FILE_BASE_URI, IMAGE_DIRECTORY_NAME);
storage = new LocalImageStorage(imageOutputPath, imageBaseUri);
}
return(storage);
}
public async Task Invoke(HttpContext context)
{
logger.LogTrace(MainCfg.LogEventId, "Start image middleware...");
string imagePath = context.Request.Path;
DateTime now = DateTime.UtcNow;
IFileInfo fileInfo;
if (!string.IsNullOrWhiteSpace(imagePath) && imagePath.Length > 4)
{
logger.LogInformation(MainCfg.LogEventId, "The request path is '{0}'", imagePath);
IImageStorage imageStorage = new LocalImageStorage(imagePath, fileProvider);
fileInfo = GetImageFromCache(imageStorage, now);
if ((fileInfo == null || !fileInfo.Exists) && imageStorage.IsImageSupported)
{
fileInfo = await GetImageFromStorageAsync(imageStorage, now).ConfigureAwait(false);
if (fileInfo == null || !fileInfo.Exists)
{
logger.LogError(MainCfg.LogEventId, "Couldn't get the image '{0}' from storage!", imagePath);
fileInfo = await new LocalImageStorage(MainCfg.Images.EmptyPreview, imageStorage.SizeSetting, fileProvider)
.GetImageVariantAsync()
.ConfigureAwait(false);
}
}
if (fileInfo != null && fileInfo.Exists)
{
await context.Response.SendFileAsync(fileInfo).ConfigureAwait(false);
return;
}
}
await this.next.Invoke(context).ConfigureAwait(false);
}
