/// <summary>
/// Overrides default <see cref="M:System.Web.Mvc.ActionFilterAttribute.OnActionExecuting(System.Web.Mvc.ActionExecutingContext)"/> method by adding custom validation logic.
/// </summary>
/// <param name="filterContext">Filter Context</param>
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
try
{
string response = filterContext.HttpContext.Request.Form["g-recaptcha-response"];
string remoteIP = filterContext.HttpContext.Request.UserHostAddress;
RecaptchaValidationService rvs = new RecaptchaValidationService();
RecaptchaResponse result = rvs.Validate(response, remoteIP);
if (!result.Success)
{
filterContext.Controller.ViewData.ModelState.AddModelError("SC.Recaptcha", Strings.ResponseError_ValidationFailed);
List<string> errors = new List<string>();
foreach (string error in result.ErrorCodes)
{
switch (error)
{
case ("missing-input-secret"):
errors.Add(Strings.ResponseError_MissingInputSecret);
break;
case ("invalid-input-secret"):
errors.Add(Strings.ResponseError_InvalidInputSecret);
break;
case ("missing-input-response"):
errors.Add(Strings.ResponseError_MissingInputResponse);
break;
case ("invalid-input-response"):
errors.Add(Strings.ResponseError_InvalidInputResponse);
break;
default:
errors.Add(Strings.ResponseError_GeneralError);
break;
}
}
filterContext.HttpContext.Items["SC.Recaptcha.Errors"] = errors;
}
base.OnActionExecuting(filterContext);
}
catch (Exception ex)
{
//TODO: Add Exception handling logic here.
}
}
protected void btnClickMe_Click(object sender, EventArgs e)
{
string response = Request.Form["g-recaptcha-response"];
string remoteIP = Request.UserHostAddress;
RecaptchaValidationService rvs = new RecaptchaValidationService();
RecaptchaResponse result = rvs.Validate(response, remoteIP);
if (result.Success)
lblError.Text = "Hurray! You are human!";
else
lblError.Text = Strings.ResponseError_ValidationFailed;
////Get error details if needed
//if (!result.Success)
//{
// List<string> errors = new List<string>();
// foreach (string error in result.ErrorCodes)
// {
// switch (error)
// {
// case ("missing-input-secret"):
// errors.Add(Strings.ResponseError_MissingInputSecret);
// break;
// case ("invalid-input-secret"):
// errors.Add(Strings.ResponseError_InvalidInputSecret);
// break;
// case ("missing-input-response"):
// errors.Add(Strings.ResponseError_MissingInputResponse);
// break;
// case ("invalid-input-response"):
// errors.Add(Strings.ResponseError_InvalidInputResponse);
// break;
// default:
// errors.Add(Strings.ResponseError_GeneralError);
// break;
// }
// }
//}
}
