Webform/token.ashx.cs

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using System;
using System.Web;

namespace Webform
{
    /// <summary>
    /// token 的摘要说明
    /// </summary>
    public class token : IHttpHandler
    {
        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
            string token = "token12345678";
            if (string.IsNullOrEmpty(token))
            {
                return;
            }
            string echoString = HttpContext.Current.Request.QueryString["echoStr"];
            string signature = HttpContext.Current.Request.QueryString["signature"];
            string timestamp = HttpContext.Current.Request.QueryString["timestamp"];
            string nonce = HttpContext.Current.Request.QueryString["nonce"];
            if (CheckSignature(token, signature, timestamp, nonce))
            {
                if (!string.IsNullOrEmpty(echoString))
                {
                    HttpContext.Current.Response.Write(echoString);
                    HttpContext.Current.Response.End();
                }
            }
        }

        /// <summary>
        /// 验证微信签名
        /// </summary>
        public static bool CheckSignature(string token, string signature, string timestamp, string nonce)
        {
            string[] ArrTmp = { token, timestamp, nonce };
            //字典排序
            Array.Sort(ArrTmp);
            //拼接
            string tmpStr = string.Join("", ArrTmp);
            //sha1验证
            tmpStr = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, "SHA1");
            //tmpStr = Membership.CreateUser(tmpStr, "SHA1");
            tmpStr = tmpStr.ToLower();
            if (tmpStr == signature)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        public bool IsReusable
        {
            get
            {