public override void RenderControl(HtmlTextWriter writer)
{
NoCaptcha nc = (string.IsNullOrEmpty(SiteKey) || string.IsNullOrEmpty(SecretKey)) ?
new NoCaptcha() :
new NoCaptcha(SiteKey, SecretKey);
writer.AddAttribute(HtmlTextWriterAttribute.Class, "g-recaptcha");
writer.AddAttribute("data-sitekey", nc.SiteKey);
if (UseSecureToken)
{
writer.AddAttribute("data-stoken", nc.SecureToken);
}
writer.AddAttribute("data-theme", Theme.ToString().ToLower());
writer.AddAttribute("data-type", Type.ToString().ToLower());
writer.AddAttribute("data-size", Size.ToString().ToLower());
writer.RenderBeginTag(HtmlTextWriterTag.Div);
writer.RenderEndTag();
if (!IsValid && ((Page)HttpContext.Current.Handler).IsPostBack)
{
writer.AddAttribute(HtmlTextWriterAttribute.Class, ErrorCssClass);
writer.RenderBeginTag(HtmlTextWriterTag.Div);
writer.WriteEncodedText(ErrorMessage);
writer.RenderEndTag();
}
}
protected override bool EvaluateIsValid()
{
NoCaptcha nc = (string.IsNullOrEmpty(SiteKey) || string.IsNullOrEmpty(SecretKey)) ?
new NoCaptcha() :
new NoCaptcha(SiteKey, SecretKey);
string clientResponse = GetClientResponse();
if (string.IsNullOrEmpty(clientResponse))
{
return(false);
}
var result = nc.Validate(clientResponse, GetClientIP());
IsValid = result.Succeeded;
if (IsValid)
{
return(true);
}
List <string> errors = new List <string>();
if (result.ErrorMessages == null)
{
errors.Add("Unspecified Error");
}
else
{
foreach (string error in result.ErrorMessages)
{
switch (error)
{
case "missing-input-secret":
errors.Add("The secret parameter is missing");
break;
case "invalid-input-secret":
errors.Add("The secret parameter is invalid or malformed");
break;
case "missing-input-response":
errors.Add("The response parameter is missing");
break;
case "invalid-input-response":
errors.Add("The response parameter is invalid or malformed");
break;
default:
errors.Add(error);
break;
}
}
}
ErrorMessage = string.Join(", ", errors);
return(false);
}