.net core 使用阿裡雲簡訊發送SMS

阿裡雲官方的skd（aliyun-net-sdk-core，aliyun-net-sdk-dysmsapi）在dnc中發送簡訊會出錯，nuget上的包貌似也一樣不管用。直接改下sdk當然也可以，但就發個簡訊，官方的sdk實在是有點繁雜，其實可以簡單化，一個類就搞定。

  1 using Newtonsoft.Json;
  2 using System;
  3 using System.Collections.Generic;
  4 using System.Globalization;
  5 using System.Net;
  6 using System.Net.Http;
  7 using System.Security.Cryptography;
  8 using System.Text;
  9 using System.Threading.Tasks;
 10 using System.Web;
 11 
 12 namespace Vino.Core.Communication.SMS
 13 {
 14     public class AliyunSmsSender : ISmsSender
 15     {
 16         private string RegionId = "cn-hangzhou";
 17         private string Version = "2017-05-25";
 18         private string Action = "SendSms";
 19         private string Format = "JSON";
 20         private string Domain = "dysmsapi.aliyuncs.com";
 21 
 22         private int MaxRetryNumber = 3;
 23         private bool AutoRetry = true;
 24         private const string SEPARATOR = "&";
 25         private int TimeoutInMilliSeconds = 100000;
 26 
 27         private string AccessKeyId;
 28         private string AccessKeySecret;
 29 
 30         public AliyunSmsSender(string accessKeyId, string accessKeySecret)
 31         {
 32             this.AccessKeyId = accessKeyId;
 33             this.AccessKeySecret = accessKeySecret;
 34         }
 35 
 36         /// <summary>
 37         /// 發送簡訊
 38         /// </summary>
 39         public async Task<(bool success, string response)> Send(SmsObject sms)
 40         {
 41             var paramers = new Dictionary<string, string>();
 42             paramers.Add("PhoneNumbers", sms.Mobile);
 43             paramers.Add("SignName", sms.Signature);
 44             paramers.Add("TemplateCode", sms.TempletKey);
 45             paramers.Add("TemplateParam", JsonConvert.SerializeObject(sms.Data));
 46             paramers.Add("OutId", sms.OutId);
 47             paramers.Add("AccessKeyId", AccessKeyId);
 48 
 49             try
 50             {
 51                 string url = GetSignUrl(paramers, AccessKeySecret);
 52 
 53                 int retryTimes = 1;
 54                 var reply = await HttpGetAsync(url);
 55                 while (500 <= reply.StatusCode && AutoRetry && retryTimes < MaxRetryNumber)
 56                 {
 57                     url = GetSignUrl(paramers, AccessKeySecret);
 58                     reply = await HttpGetAsync(url);
 59                     retryTimes++;
 60                 }
 61 
 62                 if (!string.IsNullOrEmpty(reply.response))
 63                 {
 64                     var res = JsonConvert.DeserializeObject<Dictionary<string, string>>(reply.response);
 65                     if (res != null && res.ContainsKey("Code") && "OK".Equals(res["Code"]))
 66                     {
 67                         return (true, response: reply.response);
 68                     }
 69                 }
 70 
 71                 return (false, response: reply.response);
 72             }
 73             catch (Exception ex)
 74             {
 75                 return (false, response: ex.Message);
 76             }
 77         }
 78 
 79         private string GetSignUrl(Dictionary<string, string> parameters, string accessSecret)
 80         {
 81             var imutableMap = new Dictionary<string, string>(parameters);
 82             imutableMap.Add("Timestamp", FormatIso8601Date(DateTime.Now));
 83             imutableMap.Add("SignatureMethod", "HMAC-SHA1");
 84             imutableMap.Add("SignatureVersion", "1.0");
 85             imutableMap.Add("SignatureNonce", Guid.NewGuid().ToString());
 86             imutableMap.Add("Action", Action);
 87             imutableMap.Add("Version", Version);
 88             imutableMap.Add("Format", Format);
 89             imutableMap.Add("RegionId", RegionId);
 90 
 91             IDictionary<string, string> sortedDictionary = new SortedDictionary<string, string>(imutableMap, StringComparer.Ordinal);
 92             StringBuilder canonicalizedQueryString = new StringBuilder();
 93             foreach (var p in sortedDictionary)
 94             {
 95                 canonicalizedQueryString.Append("&")
 96                 .Append(PercentEncode(p.Key)).Append("=")
 97                 .Append(PercentEncode(p.Value));
 98             }
 99 
100             StringBuilder stringToSign = new StringBuilder();
101             stringToSign.Append("GET");
102             stringToSign.Append(SEPARATOR);
103             stringToSign.Append(PercentEncode("/"));
104             stringToSign.Append(SEPARATOR);
105             stringToSign.Append(PercentEncode(canonicalizedQueryString.ToString().Substring(1)));
106 
107             string signature = SignString(stringToSign.ToString(), accessSecret + "&");
108 
109             imutableMap.Add("Signature", signature);
110 
111             return ComposeUrl(Domain, imutableMap);
112         }
113 
114         private static string FormatIso8601Date(DateTime date)
115         {
116             return date.ToUniversalTime().ToString("yyyy-MM-dd'T'HH:mm:ss'Z'", CultureInfo.CreateSpecificCulture("en-US"));
117         }
118 
119         /// <summary>
120         /// 簽名
121         /// </summary>
122         public static string SignString(string source, string accessSecret)
123         {
124             using (var algorithm = new HMACSHA1(Encoding.UTF8.GetBytes(accessSecret.ToCharArray())))
125             {
126                 return Convert.ToBase64String(algorithm.ComputeHash(Encoding.UTF8.GetBytes(source.ToCharArray())));
127             }
128         }
129 
130         private static string ComposeUrl(string endpoint, Dictionary<String, String> parameters)
131         {
132             StringBuilder urlBuilder = new StringBuilder("");
133             urlBuilder.Append("http://").Append(endpoint);
134             if (-1 == urlBuilder.ToString().IndexOf("?"))
135             {
136                 urlBuilder.Append("/?");
137             }
138             string query = ConcatQueryString(parameters);
139             return urlBuilder.Append(query).ToString();
140         }
141 
142         private static string ConcatQueryString(Dictionary<string, string> parameters)
143         {
144             if (null == parameters)
145             {
146                 return null;
147             }
148             StringBuilder sb = new StringBuilder();
149 
150             foreach (var entry in parameters)
151             {
152                 String key = entry.Key;
153                 String val = entry.Value;
154 
155                 sb.Append(HttpUtility.UrlEncode(key, Encoding.UTF8));
156                 if (val != null)
157                 {
158                     sb.Append("=").Append(HttpUtility.UrlEncode(val, Encoding.UTF8));
159                 }
160                 sb.Append("&");
161             }
162 
163             int strIndex = sb.Length;
164             if (parameters.Count > 0)
165                 sb.Remove(strIndex - 1, 1);
166 
167             return sb.ToString();
168         }
169 
170         public static string PercentEncode(string value)
171         {
172             StringBuilder stringBuilder = new StringBuilder();
173             string text = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.~";
174             byte[] bytes = Encoding.GetEncoding("UTF-8").GetBytes(value);
175             foreach (char c in bytes)
176             {
177                 if (text.IndexOf(c) >= 0)
178                 {
179                     stringBuilder.Append(c);
180                 }
181                 else
182                 {
183                     stringBuilder.Append("%").Append(
184                         string.Format(CultureInfo.InvariantCulture, "{0:X2}", (int)c));
185                 }
186             }
187             return stringBuilder.ToString();
188         }
189 
190         private async Task<(int StatusCode, string response)> HttpGetAsync(string url)
191         {
192             HttpClientHandler handler = new HttpClientHandler();
193             handler.Proxy = null;
194             handler.AutomaticDecompression = DecompressionMethods.GZip;
195 
196             using (var http = new HttpClient(handler))
197             {
198                 http.Timeout = new TimeSpan(TimeSpan.TicksPerMillisecond * TimeoutInMilliSeconds);
199                 HttpResponseMessage response = await http.GetAsync(url);
200                 return ((int)response.StatusCode, await response.Content.ReadAsStringAsync());
201             }
202         }
203     }
204 }

SmsObject.cs

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Text;
 4 
 5 namespace Vino.Core.Communication.SMS
 6 {
 7     public class SmsObject
 8     {
 9         /// <summary>
10         /// 手機號
11         /// </summary>
12         public string Mobile { set; get; }
13 
14         /// <summary>
15         /// 簽名
16         /// </summary>
17         public string Signature { get; set; }
18 
19         /// <summary>
20         /// 模板Key
21         /// </summary>
22         public string TempletKey { set; get; }
23 
24         /// <summary>
25         /// 簡訊數據
26         /// </summary>
27         public IDictionary<string, string> Data { set; get; }
28 
29         /// <summary>
30         /// 業務ID
31         /// </summary>
32         public string OutId { set; get; }
33     }
34 }

調用方法

 1                         IDictionary<string, string> data = new Dictionary<string, string>();
 2                         data.Add("code", "111111");
 3                         var sms = new SmsObject
 4                         {
 5                             Mobile = "18812345678",
 6                             Signature = "我的簽名",
 7                             TempletKey = "模板ID",
 8                             Data = data,
 9                             OutId = "OutId"
10                         };
11 
12                         var res = await new AliyunSmsSender(accessKeyId, accessKeySecret).Send(sms);
13                         Debug.WriteLine($"發送結果：{res.success}");
14                         Debug.WriteLine($"Response：{res.response}");