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+using System;
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+using System.Collections.Generic;
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+using System.Linq;
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+using System.Net.Http;
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+using System.Security.Cryptography;
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+using System.Text;
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+using System.Threading.Tasks;
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+
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+namespace CallCenter.Utility
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+{
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+ /// <summary>
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+ /// 短信
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+ /// </summary>
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+ public static class SmsHelper
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+ {
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+ /// <summary>
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+ /// 发送短信
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+ /// </summary>
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+ /// <param name="phones"></param>
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+ /// <param name="templateCode"></param>
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+ /// <param name="templateParam"></param>
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+ /// <returns></returns>
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+ public static string Send(string phones,string templateCode,string templateParam="")
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+ {
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+ string result = string.Empty;
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+
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+ try
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+ {
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+ string apiKey = Configs.GetValue("SmsNewApiKey");
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+ string accessKey = Configs.GetValue("SmsNewSecretKey");
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+ string authHost = Configs.GetValue("SmsNewUrl");
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+
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+ var ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
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+ var currentTime = Convert.ToInt64(ts.TotalMilliseconds).ToString();
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+ HttpClient client = new HttpClient();
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+
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+ var requestHeaders = new Dictionary<string, string>();
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+ //签名算法。支持HmacSHA256、HmacMD5、HmacSHA224、HmacSHA384、HmacSHA512
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+ requestHeaders.Add("x-sign-method", "HmacSHA256");
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+ requestHeaders.Add("x-api-key", $"{apiKey}");
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+ //随机数。每次请求随机数建议不相同
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+ requestHeaders.Add("x-nonce", $"{GetRandom()}");
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+ //时间戳
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+ requestHeaders.Add("x-timestamp", $"{currentTime}");
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+
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+
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+ // client.DefaultRequestHeaders.Host = "recognition.image.myqcloud.com";
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+ //设置headers请求参数
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+ foreach (var item in requestHeaders)
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+ {
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+ client.DefaultRequestHeaders.Add(item.Key, item.Value);
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+ }
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+
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+ //短信接口请求参数。参见接口规范
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+ var jsArr = new Dictionary<string, string>();
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+ jsArr.Add("phones", phones);
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+ jsArr.Add("templateCode", templateCode);
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+ if (!string.IsNullOrEmpty(templateParam))
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+ {
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+ jsArr.Add("templateParam", templateParam);
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+ }
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+
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+ //将headers参与与接口报文参数合并、排序，并生成本次请求的签名信息
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+ var signDic = jsArr.Union(requestHeaders).ToDictionary(k => k.Key, v => v.Value);
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+ var dicStr = GetSignContent(signDic);
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+ var sign = Hmacsha256Encrypt(dicStr, accessKey);
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+ //在header中设置本次请求签名信息
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+ client.DefaultRequestHeaders.Add("x-sign", sign);
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+
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+
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+ HttpContent str = new StringContent(jsArr.ToJson());
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+ str.Headers.Remove("Content-Type");
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+ str.Headers.Add("Content-Type", "application/json");
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+ HttpResponseMessage response = client.PostAsync(authHost, str).Result;
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+ var result1 = response.Content.ReadAsStringAsync().Result;
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+ var objresult = result1.ToJObject();
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+ if (objresult["code"].ToString() != "200")
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+ {
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+ LogFactory.GetLogger("SmsHelper").Error(phones + "\r\n" + templateCode + "\r\n" + templateParam + "\r\n" + result1);
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+ }
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+
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+ }
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+ catch (Exception ex)
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+ {
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+ LogFactory.GetLogger("SmsHelper").Error(phones + "\r\n" + templateCode + "\r\n" + templateParam + "\r\n" + ex.ToString());
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+ }
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+ return result;
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+ }
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+
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+ /// <summary>
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+ /// Get Sign Content
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+ /// </summary>
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+ /// <param name="parameters"></param>
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+ /// <returns></returns>
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+ private static string GetSignContent(IDictionary<string, string> parameters)
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+ {
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+ // 第一步：把字典按Key的字母顺序排序
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+ IDictionary<string, string> sortedParams = new SortedDictionary<string, string>(parameters);
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+ IEnumerator<KeyValuePair<string, string>> dem = sortedParams.GetEnumerator();
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+
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+ // 第二步：把所有参数名和参数值串在一起
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+ StringBuilder query = new StringBuilder("");
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+ while (dem.MoveNext())
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+ {
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+ string key = dem.Current.Key;
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+ string value = dem.Current.Value;
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+ if (!string.IsNullOrEmpty(key) && !string.IsNullOrEmpty(value))
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+ {
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+ query.Append(key).Append("=").Append(value).Append("&");
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+ }
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+ }
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+ string content = query.ToString().Substring(0, query.Length - 1);
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+
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+ return content;
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+ }
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+
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+ /// <summary>
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+ /// HMACSHA1算法加密
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+ /// </summary>
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+ private static string Hmacsha256Encrypt(string encryptText, string encryptKey)
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+ {
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+ var encoding = new System.Text.UTF8Encoding();
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+ StringBuilder builder = new StringBuilder();
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+
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+ using (var hmacsha256 = new HMACSHA256(encoding.GetBytes(encryptKey)))
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+ {
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+ byte[] hashmessage = hmacsha256.ComputeHash(encoding.GetBytes(encryptText));
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+ for (int i = 0; i < hashmessage.Length; i++)
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+ {
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+ builder.Append(hashmessage[i].ToString("x2"));
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+ }
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+ }
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+ return builder.ToString();
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+ }
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+ /// <summary>
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+ /// 获取随机数
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+ /// </summary>
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+ private static int GetRandom()
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+ {
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+ var random = new Random();
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+ var rand = random.Next(10000, 999999999);
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+ return rand;
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+ }
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+ }
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+}
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