public void CanRoundTripCaptchaInfo()
{
DateTime date = DateTime.ParseExact(DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss", CultureInfo.InvariantCulture), "yyyy/MM/dd HH:mm:ss", CultureInfo.InvariantCulture);
CaptchaInfo info = new CaptchaInfo("My Test");
info.WarpFactor = CaptchaImage.FontWarpFactor.High;
info.DateGenerated = date;
string encrypted = info.ToEncryptedString();
Assert.IsTrue(encrypted.IndexOf("My Test") < 0);
info = CaptchaInfo.FromEncryptedString(encrypted);
Assert.AreEqual("My Test", info.Text);
Assert.AreEqual(CaptchaImage.FontWarpFactor.High, info.WarpFactor);
Assert.AreEqual(date, info.DateGenerated);
}
protected override void Render(HtmlTextWriter writer)
{
RenderHiddenInputForEncryptedAnswer(writer);
writer.Write("<div id=\"{0}\"", ClientID);
if (!String.IsNullOrEmpty(CssClass))
{
writer.Write(" class=\"{0}\"", CssClass);
}
else
{
writer.Write(" class=\"captcha\"");
}
writer.Write(">");
string src = HttpHelper.ExpandTildePath("~/images/services/CaptchaImage.ashx");
writer.Write("<img src=\"{0}", src);
if (!IsDesignMode)
{
writer.Write("?spec={0}", HttpUtility.UrlEncodeUnicode(_captcha.ToEncryptedString()));
}
writer.Write("\" border=\"0\"");
writer.Write(" width=\"{0}\" ", Width.Value);
writer.Write(" height=\"{0}\" ", Height.Value);
if (ToolTip.Length > 0)
{
writer.Write(" alt='{0}'", ToolTip);
}
writer.Write(" />");
if (DefaultText.Length > 0)
{
writer.Write("<label for=\"{0}\">", AnswerFormFieldName);
writer.Write(DefaultText);
writer.Write("</label>");
base.Render(writer);
}
writer.Write("<input name=\"{0}\" type=\"text\" size=\"", AnswerFormFieldName);
writer.Write(_captcha.TextLength.ToString(CultureInfo.InvariantCulture));
writer.Write("\" maxlength=\"{0}\"", _captcha.TextLength);
if (AccessKey.Length > 0)
{
writer.Write(" accesskey=\"{0}\"", AccessKey);
}
if (!Enabled)
{
writer.Write(" disabled=\"disabled\"");
}
if (TabIndex > 0)
{
writer.Write(" tabindex=\"{0}\"", TabIndex);
}
if (Page.IsPostBack && IsValid)
{
writer.Write(" value=\"{0}\" />", HttpUtility.HtmlEncode(Page.Request.Form[AnswerFormFieldName]));
}
else
{
writer.Write(" value=\"\" />");
}
writer.Write("</div>");
}
