/// <summary>
/// Validates the captcha that is in the Form of the current request
/// </summary>
/// <param name="reportError">Lambda for reporting errors</param>
public async Task <bool> ValidateCaptchaAsync(Action <string, string> reportError)
{
if (!_settings.IsValid())
{
_logger.LogWarning("The ReCaptcha settings are not valid");
return(false);
}
// We use the header value as default if it's passed
var reCaptchaResponse = _httpContextAccessor.HttpContext?.Request.Headers[Constants.ReCaptchaServerResponseHeaderName];
// If this is a standard form post we get the token from the form values if not affected previously in the header
if (String.IsNullOrEmpty(reCaptchaResponse) && (_httpContextAccessor.HttpContext?.Request.HasFormContentType ?? false))
{
reCaptchaResponse = _httpContextAccessor.HttpContext.Request.Form[Constants.ReCaptchaServerResponseHeaderName].ToString();
}
var isValid = !String.IsNullOrEmpty(reCaptchaResponse) && await VerifyCaptchaResponseAsync(reCaptchaResponse);
if (!isValid)
{
reportError("ReCaptcha", S["Failed to validate captcha"]);
}
return(isValid);
}
private ISolver CreateReCaptchaSolver(ReCaptchaSettings settings)
{
try
{
if (settings.IsValid() == false)
{
return(null);
}
ISolver solver = new ReCaptchaV2(settings);
return(solver);
}
catch (Exception ex)
{
App.LogWriter.WriteLog($"Can't Create Captcha Solver {ex.Message}");
return(null);
}
}