阿里大鱼.net core 发送短信

阿里大鱼还未提供 .net core 版SDK，但提供了相关API，下面是.net core版实现，只是简单发送短信功能：

using System;

using System.Collections.Generic;

using System.IO;

using System.Net;

using System.Security.Cryptography;

using System.Text;

using Newtonsoft.Json;

namespace ConsoleApp1

{

    public class SmsHelper

    {

        public static string Post(string url, string data, Encoding encoding)

        {

            try

            {

                HttpWebRequest req = WebRequest.CreateHttp(new Uri(url));

                req.ContentType = "application/x-www-form-urlencoded;charset=utf-8";

                req.Method = "POST";

                req.Accept = "text/xml,text/javascript";

                req.ContinueTimeout = ;

                byte[] postData = encoding.GetBytes(data);

                Stream reqStream = req.GetRequestStreamAsync().Result;

                reqStream.Write(postData, , postData.Length);

                reqStream.Dispose();

                var rsp = (HttpWebResponse)req.GetResponseAsync().Result;

                var result = GetResponseAsString(rsp, encoding);

                return result;

            }

            catch (Exception ex)

            {

                throw;

            }

        }

        public static T Post<T>(string url, string data, Encoding encoding)

        {

            try

            {

                var result = Post(url, data, encoding);

                return JsonConvert.DeserializeObject<T>(result);

            }

            catch (Exception ex)

            {

                return default(T);

            }

        }

        public static string BuildQuery(IDictionary<string, string> parameters)

        {

            if (parameters == null || parameters.Count == )

            {

                return null;

            }

            StringBuilder query = new StringBuilder();

            bool hasParam = false;

            foreach (KeyValuePair<string, string> kv in parameters)

            {

                string name = kv.Key;

                string value = kv.Value;

                // 忽略参数名或参数值为空的参数

                if (!string.IsNullOrEmpty(name) && !string.IsNullOrEmpty(value))

                {

                    if (hasParam)

                    {

                        query.Append("&");

                    }

                    query.Append(name);

                    query.Append("=");

                    query.Append(WebUtility.UrlEncode(value));

                    hasParam = true;

                }

            }

            return query.ToString();

        }

        public static string GetResponseAsString(HttpWebResponse rsp, Encoding encoding)

        {

            Stream stream = null;

            StreamReader reader = null;

            try

            {

                // 以字符流的方式读取HTTP响应

                stream = rsp.GetResponseStream();

                reader = new StreamReader(stream, encoding);

                return reader.ReadToEnd();

            }

            finally

            {

                // 释放资源

                if (reader != null) reader.Dispose();

                if (stream != null) stream.Dispose();

                if (rsp != null) rsp.Dispose();

            }

        }

        public static string GetAlidayuSign(IDictionary<string, string> parameters, string secret, string signMethod)

        {

            //把字典按Key的字母顺序排序

            IDictionary<string, string> sortedParams = new SortedDictionary<string, string>(parameters, StringComparer.Ordinal);

            //把所有参数名和参数值串在一起

            StringBuilder query = new StringBuilder();

            if (Constants.SIGN_METHOD_MD5.Equals(signMethod))

            {

                query.Append(secret);

            }

            foreach (KeyValuePair<string, string> kv in sortedParams)

            {

                if (!string.IsNullOrEmpty(kv.Key) && !string.IsNullOrEmpty(kv.Value))

                {

                    query.Append(kv.Key).Append(kv.Value);

                }

            }

            //使用MD5/HMAC加密

            if (Constants.SIGN_METHOD_HMAC.Equals(signMethod))

            {

                return Hmac(query.ToString(), secret);

            }

            else

            {

                query.Append(secret);

                return Md5(query.ToString());

            }

        }

        public static string Hmac(string value, string key)

        {

            byte[] bytes;

            using (var hmac = new HMACMD5(Encoding.UTF8.GetBytes(key)))

            {

                bytes = hmac.ComputeHash(Encoding.UTF8.GetBytes(value));

            }

            StringBuilder result = new StringBuilder();

            foreach (byte t in bytes)

            {

                result.Append(t.ToString("X2"));

            }

            return result.ToString();

        }

        public static string Md5(string value)

        {

            byte[] bytes;

            using (var md5 = MD5.Create())

            {

                bytes = md5.ComputeHash(Encoding.UTF8.GetBytes(value));

            }

            var result = new StringBuilder();

            foreach (byte t in bytes)

            {

                result.Append(t.ToString("X2"));

            }

            return result.ToString();

        }

        public static SmsResultAli SendSms(string url, string appKey, string appSecret, DateTime timestamp, Dictionary<string, string> parsms)

        {

            var txtParams = new SortedDictionary<string, string>();

            txtParams.Add(Constants.METHOD, "alibaba.aliqin.fc.sms.num.send");

            txtParams.Add(Constants.VERSION, "2.0");

            txtParams.Add(Constants.SIGN_METHOD, Constants.SIGN_METHOD_HMAC);

            txtParams.Add(Constants.APP_KEY, appKey);

            txtParams.Add(Constants.FORMAT, "json");

            txtParams.Add(Constants.TIMESTAMP, timestamp.ToString(Constants.DATE_TIME_FORMAT));

            txtParams.Add(Constants.SMS_TYPE, "normal");

            foreach (var item in parsms)

            {

                txtParams.Add(item.Key,item.Value);

            }

            txtParams.Add(Constants.SIGN, GetAlidayuSign(txtParams, appSecret, Constants.SIGN_METHOD_HMAC));

            var result = Post<SmsResultAli>(url, BuildQuery(txtParams), Encoding.UTF8);

            return result;

        }

    }

    public class SmsResultAli

    {

        public SmsResponseALi Alibaba_Aliqin_Fc_Sms_Num_Send_Response { get; set; }

    }

    public class SmsResponseALi

    {

        public string Request_Id { get; set; }

        public SmsResponseResultAli Result { get; set; }

    }

    public class SmsResponseResultAli

    {

        public string Err_Code { get; set; }

        public string Model { get; set; }

        public bool Success { get; set; }

    }

}

发送短信时：

            var parms = new Dictionary<string, string>();

            parms.Add(Constants.EXTEND, "");

            parms.Add(Constants.REC_NUM, "138********");

            parms.Add(Constants.SMS_FREE_SIGN_NAME, "阿里大鱼");

            parms.Add(Constants.SMS_PARAM, "{\"code\":\"1234\",\"product\":\"阿里大鱼\"}");

            parms.Add(Constants.SMS_TEMPLATE_CODE, "SMS_10000000");

            var req = SmsHelper.SendSms("http://gw.api.taobao.com/router/rest", "appKey", "appSecret", DateTime.Now, parms);