erp/SiteCore/Handler/app.wx.cs

using BizCom;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using SiteCore.wechat;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using TenPay;
using Utils;

namespace SiteCore.Handler
{
    public partial class app
    {
        string mini_Appid = "wx20432512482565e9";
        string mini_Secret = "07492bc9cbbc5b303e5e135b4dccd6f0";
        string mini_Appid_run = "wxe62d4788908d682c";
        string mini_Secret_run = "f6d0852161703ed7acdfe880895c7fbe";
        string grant_type = "authorization_code";
        /// <summary> 
        /// 获取链接返回数据 
        /// </summary> 
        /// <param name="Url">链接</param> 
        /// <param name="type">请求类型</param> 
        /// <returns></returns> 
        public string GetUrltoHtml(string Url, string type)
        {
            try
            {
                System.Net.WebRequest wReq = System.Net.WebRequest.Create(Url);
                // Get the response instance. 
                System.Net.WebResponse wResp = wReq.GetResponse();
                System.IO.Stream respStream = wResp.GetResponseStream();
                // Dim reader As StreamReader = New StreamReader(respStream) 
                using (System.IO.StreamReader reader = new System.IO.StreamReader(respStream, Encoding.GetEncoding(type)))
                {
                    return reader.ReadToEnd();
                }
            }
            catch (System.Exception ex)
            {
                return ex.Message;
            }
        }


        public void getUnifiedOrder()
        {
           
           
        }

        public void getReSign()
        {
            if(UrlPostParmsCheck("prepay_id"))
            {
                string appid = WxPayConfig.MiniAPPID;//  GetPostString("appid");
                string prepay_id = GetPostString("prepay_id");
                WxPayData jsApiParam = new WxPayData();
                jsApiParam.SetValue("appId", appid);
                jsApiParam.SetValue("timeStamp", WxPayApi.GenerateTimeStamp());
                jsApiParam.SetValue("nonceStr", WxPayApi.GenerateNonceStr());
                jsApiParam.SetValue("package", "prepay_id=" + prepay_id);
                jsApiParam.SetValue("signType", "MD5");
                jsApiParam.SetValue("paySign", jsApiParam.MakeSign());

                conSuccess("",jsApiParam.ToJson());
                return;
                //string parameters = ;
            }
            conError("错误的参数");
            //Log.Debug(this.GetType().ToString(), "Get jsApiParam : " + parameters);
            //return parameters;
        }

        public void getReSign2(string prepay_id)
        {
            string appid = WxPayConfig.MiniAPPID;//  GetPostString("appid");
            //string prepay_id = GetPostString("prepay_id");
            WxPayData jsApiParam = new WxPayData();
            jsApiParam.SetValue("appId", appid);
            jsApiParam.SetValue("timeStamp", WxPayApi.GenerateTimeStamp());
            jsApiParam.SetValue("nonceStr", WxPayApi.GenerateNonceStr());
            jsApiParam.SetValue("package", "prepay_id=" + prepay_id);
            jsApiParam.SetValue("signType", "MD5");
            jsApiParam.SetValue("paySign", jsApiParam.MakeSign());
            conSuccess("", jsApiParam.ToJson());
        }

        /// <summary>  
        /// 根据微信小程序平台提供的解密算法解密数据  
        /// </summary>  
        /// <param name="encryptedData">加密数据</param>  
        /// <param name="iv">初始向量</param>  
        /// <param name="sessionKey">从服务端获取的SessionKey</param>  
        /// <returns></returns>  
        public WechatUserInfo Decrypt(string encryptedData, string iv, string sessionKey)
        {
            WechatUserInfo userInfo;
            //创建解密器生成工具实例  
            AesCryptoServiceProvider aes = new AesCryptoServiceProvider();
            //设置解密器参数  
            aes.Mode = CipherMode.CBC;
            aes.BlockSize = 128;
            aes.Padding = PaddingMode.PKCS7;
            //格式化待处理字符串  
            byte[] byte_encryptedData = Convert.FromBase64String(encryptedData);
            byte[] byte_iv = Convert.FromBase64String(iv);
            byte[] byte_sessionKey = Convert.FromBase64String(sessionKey);

            aes.IV = byte_iv;
            aes.Key = byte_sessionKey;
            //根据设置好的数据生成解密器实例  
            ICryptoTransform transform = aes.CreateDecryptor();

            //解密  
            byte[] final = transform.TransformFinalBlock(byte_encryptedData, 0, byte_encryptedData.Length);

            //生成结果  
            string result = Encoding.UTF8.GetString(final);

            //反序列化结果，生成用户信息实例  
            userInfo = JsonConvert.DeserializeObject<WechatUserInfo>(result);

            return userInfo;

        }

        public void wx_login()
        {
            if (UrlPostParmsCheck("code,uname,pwd"))
            {
                string code = GetPostString("code");
                string uname = GetPostString("uname");
                string pwd = GetPostString("pwd");
                string nickname = GetPostString("nickname");
                string avatarUrl = GetPostString("avatarUrl");
                int gender = GetPostInt("gender");
                //向微信服务端 使用登录凭证 code 获取 session_key 和 openid  
                string url = "https://api.weixin.qq.com/sns/jscode2session?appid=" + mini_Appid + "&secret=" + mini_Secret + "&js_code=" + code + "&grant_type=" + grant_type;
                string type = "utf-8";
                string json = GetUrltoHtml(url, type);//获取微信服务器返回字符串 
                                                      //微信服务器验证成功 
                JObject jo = (JObject)JsonConvert.DeserializeObject(json);
                try
                {
                    string openid = jo["openid"].ToString();
                    string session_key = jo["session_key"].ToString();

                    if (openid == "" || session_key == "")
                    {
                        conError("无法登录！");
                        return;
                    }

                    pwd = SecurityHelper.EncryptMD5(pwd);//加密

                    SUser entity = SUser.Get(uname, pwd);
                    if (entity == null)
                    {
                        conError("用户名或密码错误！");
                        return;
                    }
                    entity.Sex = gender;
                    entity.NickName = nickname;
                    entity.UserPic = avatarUrl;
                    entity.Update();

                    //封装成对象
                    string session_id = con.Session.SessionID;
                    UserObj uObj = new UserObj()
                    {
                        session_key = session_key,
                        openid = openid,
                        userid = entity.ID
                    };
                    //存入内存中
                    RedisHelper.StringSet(session_id, JsonConvert.SerializeObject(uObj));
                    //返回数据给小程序
                    StringBuilder userStr = new StringBuilder();
                    userStr.Append("{");
                    userStr.AppendFormat("\"session3\":\"{0}\"", session_id);
                    userStr.AppendFormat(",\"userpic\":\"{0}\"", entity.UserPic);
                    userStr.AppendFormat(",\"mobile\":\"{0}\"", entity.Mobile);
                    userStr.AppendFormat(",\"username\":\"{0}\"", entity.RealName);
                    userStr.Append("}");
                    conSuccess("登录成功", userStr.ToString());
                    return;
                }
                catch (Exception)
                {
                    //微信服务器验证失败 
                    string msg = jo["errcode"].ToString() + "," + jo["errmsg"].ToString();
                    conError(msg);
                }
                return;
            }
            conError("错误的参数");
        }
    }
}