调用打码平台api获取验证码 (C#版)

一、打码平台很多，这里选择两个：联众和斐斐

联众开发文档:

https://www.jsdati.com/docs/guide

斐斐开发文档:

http://docs.fateadm.com/web/#/1?page_id=1

二、联众打码

从文档可以看到联众的接口是 https://v2-api.jsdama.com/upload

大多数验证码类型是四位数字字母，从这里可以看到我们需要的类型是1001.查看类型地址：https://www.jsdati.com/docs/price

获取需要的参数并发送post请求即可：

    public class LianzhongRun
    {
        private const string ApiCode = "https://v2-api.jsdama.com/upload";
        public static string LianZhongCode(string imgUrl)
        {
            var img64 = NetHandle.GetImageAsBase64Url(imgUrl).Result;
            LianZhongRequestModel param = new LianZhongRequestModel();
            param.captchaData = img64;
            param.softwareId = ;
            param.softwareSecret = "";
            param.username = "";
            param.password = "";
            // captchaType 类型，查看：https://www.jsdati.com/docs/price
            param.captchaType = ;
            using (var _client = new HttpClient())
            {
                _client.DefaultRequestHeaders.Add("host", "v2-api.jsdama.com");
                _client.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.89 Safari/537.36");
                StringContent content = new StringContent(JsonConvert.SerializeObject(param), Encoding.UTF8,
                                "application/json");
                HttpResponseMessage response = _client.PostAsync(ApiCode, content).Result;
                string result = response.Content.ReadAsStringAsync().Result;
                Console.WriteLine("返回结果--" + result);
                if (!result.Contains("recognition")) return string.Empty;
                dynamic resultObj = JsonConvert.DeserializeObject(result);
                var data = resultObj["data"];
                string recognition = data["recognition"];
                Console.WriteLine("验证码:" + recognition);
                return recognition.Trim();
            }
        }
    }

三、斐斐打码

同样的方式，斐斐接口的请求代码如下

    public class FeifeiRun
    {
        private static string ApiCode = "http://pred.fateadm.com/api/capreg";
        private static string PdId = "";
        private static string PdKey = "";
        private static string AppKey = "";
        private static string AppId = "";

        /// <summary>
        /// 斐斐打码
        /// </summary>
        /// <param name="imgUrl"></param>
        /// <returns></returns>
        public static string FeifeiCode(string imgUrl)
        {
            var img64 = NetHandle.GetImageAsBase64Url(imgUrl).Result;
            var timestamp = TimeHelper.GetCurrentTimeUnix();
            string cur_tm = TimeHelper.GetCurrentTimeUnix();
            string sign = SecurityHelper.CalcSign(PdId, PdKey, cur_tm);
            string asign = SecurityHelper.CalcSign(AppId, AppKey, cur_tm);
            var predict_type = "";
            var imgBytes = NetHandle.ReadBytes(imgUrl);
            var values = new Dictionary<string, string>
            {
                { "user_id",PdId},
                { "timestamp",timestamp},
                { "sign",sign},
                { "app_id",AppId},
                { "asign",asign},
                { "predict_type",predict_type},
                { "img_data",img64}
            };

            using (var _client = new HttpClient())
            {
                var content = new FormUrlEncodedContent(values);
                HttpResponseMessage response = _client.PostAsync(ApiCode, content).Result;
                string result = response.Content.ReadAsStringAsync().Result;
                var data = JsonConvert.DeserializeObject<HttpRspData>(result);
                if (!string.IsNullOrEmpty(data.RspData))
                {
                    // 附带附加信息
                    HttpExtraInfo einfo = JsonConvert.DeserializeObject<HttpExtraInfo>(data.RspData);
                    data.einfo = einfo;
                }
                var resultCode = data.einfo.result.Trim();
                Console.WriteLine("code:" + resultCode);
                return resultCode;
            }
        }
    }

五、完整代码

https://github.com/DavideYang125/VerificationCodeObtainDemo