using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Net;
using System.IO;
using System.Security.Cryptography;
using System.Xml;
using System.Collections.Specialized;
using System.Text.RegularExpressions;
using System.Collections.Generic;
using System.Text;
using System.Globalization;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data;
using System.Data.SqlClient;
using System.Web.Script.Serialization;
namespace Mtxfw.shop
{
    public partial class weixintoken0 : System.Web.UI.Page
    {
        /// <summary>
        /// 填写你申请的登录资料
        /// </summary>

        public Mtxfw.Utility.Config config = new Mtxfw.Utility.Config("");
        public Mtxfw.DAL.Article daoArt = new Mtxfw.DAL.Article();
        public Mtxfw.DAL.user_info daoUser = new Mtxfw.DAL.user_info();
        public int gtype = 0;
        protected void Page_Load(object sender, EventArgs e)
        {
            string hostname = Request.Url.Host;
            gtype = new DAL.host().GetId(hostname);
            if (!IsPostBack)
            {
                if (Request.QueryString["echoStr"] != null)
                {
                    string echoStr = Request.QueryString["echoStr"];
                    if (CheckSignature())
                    {
                        if (!string.IsNullOrEmpty(echoStr))
                        {
                            Response.Write(echoStr);
                            Response.End();
                        }
                    }
                }
                
            }
        }
        /// <summary>        
        /// 验证微信签名        
        /// </summary>         
        /// * 将token、timestamp、nonce三个参数进行字典序排序        
        /// * 将三个参数字符串拼接成一个字符串进行sha1加密        
        /// * 开发者获得加密后的字符串可与signature对比，标识该请求来源于微信。        
        /// <returns></returns>         
        private bool CheckSignature()
        {
            string signature = Request.QueryString["signature"];
            string timestamp = Request.QueryString["timestamp"];
            string nonce = Request.QueryString["nonce"];
            Mtxfw.Utility.Common.WriteHtml("/weixin/weixin0.txt", timestamp + "|" + nonce);
            string[] ArrTmp = { config.webToken, timestamp, nonce };
            Array.Sort(ArrTmp);     //字典排序            
            string tmpStr = string.Join("", ArrTmp);
            tmpStr = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, "SHA1");
            tmpStr = tmpStr.ToLower();
            if (tmpStr == signature)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
       
    }
}