recaptcha

 reCaptcha v4.0.30319




using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace acushine.Utilities
{
    public class ReCaptchaClass
    {
        public static string Validate(string EncodedResponse)
        {
            var client = new System.Net.WebClient();

            string SecretKey = "key";

            var GoogleReply = client.DownloadString(string.Format("https://www.google.com/recaptcha/api/siteverify?secret={0}&response={1}", SecretKey, EncodedResponse));

            var captchaResponse = Newtonsoft.Json.JsonConvert.DeserializeObject<ReCaptchaClass>(GoogleReply);

            return captchaResponse.Success.ToLower();
        }

        [JsonProperty("success")]
        public string Success
        {
            get { return m_Success; }
            set { m_Success = value; }
        }

        private string m_Success;
        [JsonProperty("error-codes")]
        public List<string> ErrorCodes
        {
            get { return m_ErrorCodes; }
            set { m_ErrorCodes = value; }
        }

        private List<string> m_ErrorCodes;
    }
}





//public class ReCaptchaClass
//{
//    private static ILog log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
//    private static string SecretKey = System.Configuration.ConfigurationManager.AppSettings["Google.ReCaptcha.Secret"];
//    [JsonProperty("success")]
//    public bool Success { get; set; }
//    [JsonProperty("error-codes")]
//    public List<string> ErrorCodes { get; set; }

//    public static async Task<bool> Validate(HttpRequestBase Request)
//    {
//        string encodedResponse = Request.Form["g-Recaptcha-Response"];
//        string remoteIp = Request.UserHostAddress;
//        using (var client = new HttpClient())
//        {
//            var values = new Dictionary<string, string>
//            {
//               {"secret", SecretKey},
//               {"remoteIp", remoteIp},
//               {"response", encodedResponse}
//            };
//            var content = new FormUrlEncodedContent(values);
//            var response = await client.PostAsync("https://www.google.com/recaptcha/api/siteverify", content);
//            var responseString = await response.Content.ReadAsStringAsync();
//            var captchaResponse = Newtonsoft.Json.JsonConvert.DeserializeObject<ReCaptchaClass>(responseString);
//            if ((captchaResponse.ErrorCodes?.Count ?? 0) != 0)
//            {
//                log.Warn("ReCaptcha errors: " + string.Join("\n", captchaResponse.ErrorCodes));
//            }
//            return captchaResponse.Success;
//        }
//    }
//}

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