using System; using System.Web; using System.IO; using System.Text; using System.Web.Security; using weixin_api; public class wxgz_api : IHttpHandler { public void ProcessRequest(HttpContext context) { context.Response.ContentType = text/plain; string postString = string.Empty; if (HttpContext.Current.Request.HttpMethod.toupper() == POST) { //微信服务器对接口消息 using (Stream stream = HttpContext.Current.Request.InputStream) { Byte[] postBytes = new Byte[stream.Length]; stream.Read(postBytes, 0, (Int32)stream.Length); postString = Encoding.UTF8.GetString(postBytes); Handle(postString); } } else { //微信进行的Get测试(开发者认证) WxAuth(); } } /// <summary> /// 处理信息并应答 /// </summary> private void Handle(string postStr) { messageHelp help = new messageHelp(); string responseContent = help.ReturnMessage(postStr); HttpContext.Current.Response.ContentEncoding = Encoding.UTF8; HttpContext.Current.Response.Write(responseContent); } #region 微信验证 public void WxAuth() { string token = xxxxxxxx; 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 bool CheckSignature(string token, string signature, string timestamp, string nonce) { string[] ArrTmp = { token, timestamp, nonce }; Array.sort(ArrTmp); string tmpStr = string.Join(, ArrTmp); tmpStr = FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, SHA1); tmpStr = tmpStr.ToLower(); if (tmpStr == signature) { return true; } else { return false; } } #endregion public bool IsReusable { get { return false; } } }
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