钉钉H5w微应用鉴权

 ///// <summary>
        ///// 登录获取签名
        ///// </summary>
        ///// <param name = "url" > 获取的url </ param >
        ///// < returns > 成功时，返回签名信息</returns>
　　　　　　//引用system.web
        public signResultObject DDGetSign(string url)
        {
            try
            {
                String jsTicket = get_jsapi_ticket();
                if (jsTicket != "")
                {
                    String noncestr = GetRandomString(20, true, true, true, false, "");
                    String jsUrl    = HttpUtility.UrlDecode(url);//http://www.test.com/DDh5/index.html
                    int timeStamp   = Convert.ToInt32((DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0)).TotalSeconds);
                    String plainTex = "jsapi_ticket=" + jsTicket + "&noncestr=" + noncestr + "&timestamp=" + timeStamp.ToString() + "&url=" + jsUrl;
                    object SignObj = new object();
                    SignObj = new
                    {
                        corpId = dingConst.Corpid,
                        nonceStr = noncestr,
                        timeStamp = timeStamp,
                        signature = EncryptHelper.Sha1(plainTex).ToLower()
                    };
                    return new signResultObject { result = SignObj, code = 0, message = "获取成功!" };
                }
                else
                {
                    return new signResultObject { result = null, code = 9, message = "获取Ticket失败!" };
                }
            }
            catch (Exception ex)
            {
             35                 return new signResultObject { result = null, code = 10, message = "获取Ticket出现异常！" };
            }
        }

public static string get_jsapi_ticket()
{ 
　　DefaultDingTalkClient client = new DefaultDingTalkClient("https://oapi.dingtalk.com/get_jsapi_ticket");
　　OapiGetJsapiTicketRequest req = new OapiGetJsapiTicketRequest();
　　req.SetHttpMethod("GET");
　　OapiGetJsapiTicketResponse execute = client.Execute(req, getAccessTokenH5Trans());
　　return execute.Ticket;//注意：ticket不对，jsap鉴权会失败
}

       public static string GetRandomString(int length, bool useNum, bool useLow, bool useUpp, bool useSpe, string custom)
        {
            byte[] b = new byte[4];
            new System.Security.Cryptography.RNGCryptoServiceProvider().GetBytes(b);
            Random r = new Random(BitConverter.ToInt32(b, 0));
            string s = null, str = custom;
            if (useNum == true) { str += "0123456789"; }
            if (useLow == true) { str += "abcdefghijklmnopqrstuvwxyz"; }
            if (useUpp == true) { str += "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; }
            if (useSpe == true) { str += "!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~"; }
            for (int i = 0; i < length; i++)
            {
                s += str.Substring(r.Next(0, str.Length - 1), 1);
            }
            return s;
        }//生成签名的随机串

using System;
using System.Security.Cryptography;
using System.Text;
namespace Test.Code
{
    public static class EncryptHelper
    {
        /// <summary>
        /// 基于Md5的自定义加密字符串方法：输入一个字符串，返回一个由32个字符组成的十六进制的哈希散列（字符串）。
        /// </summary>
        /// <param name="str">要加密的字符串</param>
        /// <returns>加密后的十六进制的哈希散列（字符串）</returns>
        public static string Md5(this string str)
        {
            //将输入字符串转换成字节数组
            var buffer = Encoding.Default.GetBytes(str);
            //接着，创建Md5对象进行散列计算
            var data = MD5.Create().ComputeHash(buffer);

            //创建一个新的Stringbuilder收集字节
            var sb = new StringBuilder();

            //遍历每个字节的散列数据 
            foreach (var t in data)
            {
                //格式每一个十六进制字符串
                sb.Append(t.ToString("X2"));
            }

            //返回十六进制字符串
            return sb.ToString();
        }

        /// <summary>
        /// 基于Sha1的自定义加密字符串方法：输入一个字符串，返回一个由40个字符组成的十六进制的哈希散列（字符串）。
        /// </summary>
        /// <param name="str">要加密的字符串</param>
        /// <returns>加密后的十六进制的哈希散列（字符串）</returns>
        public static string Sha1(this string str)
        {
            var buffer = Encoding.UTF8.GetBytes(str);
            var data = SHA1.Create().ComputeHash(buffer);

            var sb = new StringBuilder();
            foreach (var t in data)
            {
                sb.Append(t.ToString("X2"));
            }

            return sb.ToString();
        }
    }
}