public string Validate(string captcha, string ipAddress)
{
if (string.IsNullOrEmpty(captcha))
{
return("验证码为空。");
}
try
{
JObject jObject;
using (var response = HttpRequestHelper.CreatePostResponse(
"https://www.recaptcha.net/recaptcha/api/siteverify", new Dictionary <string, string>
{
{ "secret", _options.SecretKey },
{ "response", captcha },
{ "remoteip", ipAddress }
}))
{
jObject = (JObject)HttpRequestHelper.GetObjectFromJsonResponse(response);
}
return(jObject.GetValue("success").Value <bool>()
? null
: "人机验证时发生错误：" + string.Join(",", jObject["error-codes"].ToList()));
}
catch (Exception ex)
{
return("人机验证时发生错误：" + ex.Message);
}
}