/// <summary>
/// Возвращает каптчу и устанавливает ее ключ в сессию текущего контекста
/// </summary>
/// <returns></returns>
public ActionResult RegCaptcha()
{
var builder = new XCaptcha.ImageBuilder()
{
Canvas = new DefaultCanvas()
{
Width = 115,
Height = 37
}
};
var captcha = builder.Create(new Random(System.Environment.TickCount).Next(65535).ToString());
Session.Add("reg_captcha", captcha.Solution);
return new FileContentResult(captcha.Image, captcha.ContentType);
}
/// <summary>
/// Create the captcha
/// </summary>
/// <returns></returns>
private CaptchaResult CreateCaptcha()
{
CotecnaCanvas ourCanvas = new CotecnaCanvas();
CotecnaTextStyle ourTextStyle = new CotecnaTextStyle();
CotecnaProvidedNoise ourNoise = new CotecnaProvidedNoise();
CotecnaDistort ourDistort = new CotecnaDistort();
XCaptcha.ImageBuilder builder = new XCaptcha.ImageBuilder(6, ourCanvas, ourTextStyle, ourDistort, ourNoise);
//Create a 6 letter captcha
return builder.Create();
}