private void EncodeMessage(EncodeRequestDto request, Bitmap image)
{
var protector = Provider.CreateProtector(GetType().FullName, request.UserId.ToString(), "-", request.Username);
var protectedMessage = protector.Protect(Encoding.UTF8.GetBytes(request.Message));
EncodeService.EnocodeMessage(image, protectedMessage);
}
public async Task <IActionResult> EncodeRandom([FromBody] EncodeRequestDto request)
{
using var imageStream = await HttpClient.GetStreamAsync("https://picsum.photos/1000");
var image = new Bitmap(imageStream);
return(EncodeRequest(request, image));
}
public async Task <IActionResult> EncodeFile([FromForm] EncodeRequestDto request, IFormFile file)
{
using var imageStream = new MemoryStream();
await file.CopyToAsync(imageStream);
var image = new Bitmap(imageStream);
return(EncodeRequest(request, image));
}
private IActionResult EncodeRequest(EncodeRequestDto request, Bitmap image)
{
try
{
EncodeMessage(request, image);
}
catch (MessageToLongException e)
{
return(BadRequest(new ErrorResponseDto
{
ErrorMessages = new[] { e.Message }
}));
}
using var resultStream = new MemoryStream();
image.Save(resultStream, ImageFormat.Png);
return(File(resultStream.ToArray(), "image/png"));
}
