public static JObject VerifyCaptcha(CaptchaVerificationData data, JObject settings)
{
Log.Debug("SecurityHelper:VerifyCaptcha: {data}", JsonConvert.SerializeObject(data, Formatting.Indented));
var result = new JObject();
try
{
var captcha = JsonHelper.FindTokenValue <JObject>(settings, "captcha");
var verifyUrl = JsonHelper.GetByPath <string>(captcha, "server.verifyUrl");
var secret = JsonHelper.GetByPath <string>(captcha, "server.secret");
var verifyParams = $"secret={secret}&response={data.Token}";
if (!string.IsNullOrEmpty(data.Ip))
{
verifyParams += $"&remoteip={data.Ip}";
}
using (var client = new WebClient())
{
client.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
var response = client.UploadString(verifyUrl, verifyParams);
if (!string.IsNullOrEmpty(response) && response.Contains("{"))
{
result.Add("verify", JsonConvert.DeserializeObject <JToken>(response));
}
else
{
result.Add("verify", response);
}
}
}
catch (Exception ex)
{
Log.Error(ex, "Could not verify captcha");
}
return(result);
}
public static bool IsValidCaptcha(CaptchaVerificationData data, JObject settings)
{
var result = VerifyCaptcha(data, settings);
return(result != null && JsonHelper.GetByPath <bool>(result, "verify.success"));
}