private GReCaptchaResponse ParseResponseResult(string responseString)
{
var result = new GReCaptchaResponse();
if (_version == ReCaptchaVersion.Version1)
{
var resultObject = responseString.Split('\n');
result.IsValid = resultObject.Contains("true");
if (!result.IsValid)
{
result.ErrorCodes.AddRange(resultObject.Where(r => !r.Equals("false", StringComparison.InvariantCultureIgnoreCase)));
}
}
else if (_version == ReCaptchaVersion.Version2)
{
var resultObject = JObject.Parse(responseString);
result.IsValid = resultObject.Value <bool>("success");
if (resultObject.Value <JToken>("error-codes") != null &&
resultObject.Value <JToken>("error-codes").Values <string>().Any())
{
result.ErrorCodes = resultObject.Value <JToken>("error-codes").Values <string>().ToList();
}
}
return(result);
}
public GReCaptchaResponse Validate()
{
GReCaptchaResponse result = null;
var httpClient = new HttpClient();
var requestUri = string.Empty;
switch (_version)
{
case ReCaptchaVersion.Version2:
requestUri = string.Format(RECAPTCHA_VERIFY_URL_VERSION2, SecretKey, Response, RemoteIp);
break;
default:
requestUri = string.Format(RECAPTCHA_VERIFY_URL_VERSION1, SecretKey, Response, RemoteIp, Challenge);
break;
}
try
{
var taskResult = httpClient.GetAsync(requestUri);
taskResult.Wait();
var response = taskResult.Result;
response.EnsureSuccessStatusCode();
var taskString = response.Content.ReadAsStringAsync();
taskString.Wait();
result = ParseResponseResult(taskString.Result);
}
catch
{
result = new GReCaptchaResponse {
IsValid = false
};
result.ErrorCodes.Add("Unknown error");
}
finally
{
httpClient.Dispose();
}
return(result);
}