public byte[] GenerateCaptchaImageBytes(ISession httpSession, int width = 100, int height = 36)
{
EnsureHttpSession(httpSession);
var captchaCode = GenerateCaptchaCode();
var result = CaptchaImageGenerator.GetImage(width, height, captchaCode);
httpSession.SetString(Options.SessionName, result.CaptchaCode);
return(result.CaptchaByteData);
}
public FileStreamResult GenerateCaptchaImageFileStream(ISession httpSession, int width = 100, int height = 36)
{
EnsureHttpSession(httpSession);
var captchaCode = GenerateCaptchaCode();
var result = CaptchaImageGenerator.GetImage(width, height, captchaCode);
httpSession.SetString(Options.SessionName, result.CaptchaCode);
Stream s = new MemoryStream(result.CaptchaByteData);
return(new FileStreamResult(s, "image/png"));
}
public FileStreamResult GenerateCaptchaImageFileStream(ISession httpSession, int width = 100, int height = 36)
{
if (null == httpSession)
{
throw new ArgumentNullException(nameof(httpSession),
"Session can not be null, please check if Session is enabled in ASP.NET Core via services.AddSession() and app.UseSession().");
}
var captchaCode = GenerateCaptchaCode();
var result = CaptchaImageGenerator.GetImage(width, height, captchaCode);
httpSession.SetString(Options.SessionName, result.CaptchaCode);
Stream s = new MemoryStream(result.CaptchaByteData);
return(new FileStreamResult(s, "image/png"));
}