Micro-trust public platform development of the certification "become a developer." NET code resolution _ Practical Skills

. Net to achieve the development of micro-credit public service platform certification, certification as a developer, the specific content as follows

These codes are also used once for authentication, and will not be available later:

Const string Token = "XXXXX";//your Token protected void Page_Load (object sender, EventArgs e) {string poststr = ""; if (Request.HttpMethod.ToLower () = = "Post") {System.IO.Stream s = System.Web.HttpContext.Current.Request.Input 
    Stream; 
    Byte[] B = new Byte[s.length]; 
    S.read (b, 0, (int) s.length); 
    Poststr = System.Text.Encoding.UTF8.GetString (b); if (!string. 
      IsNullOrEmpty (POSTSTR)) {//responsemsg (POSTSTR); 
      Response.Write (Responsemsg (POSTSTR)); 
    Response.End (); 
  }//writelog ("Poststr:" + poststr); 
  else {Valid (); }///<summary>///authentication Micro-letter Signature///</summary>///* token, timestamp, nonce three parameters are sorted in dictionary///* to spell three parameter strings 
followed by a string for SHA1 encryption///* The developer obtains the encrypted string to compare with the signature, which identifies the request from the micro-letter. <returns></returns> private bool Checksignature () {String signature = request.querystring["signature "]. 
  ToString (); string timestamp = request.querystring["Timestamp"]. 
  ToString (); String Nonce = request.querystring["Nonce"]. 
  ToString (); 
  String[] Arrtmp = {Token, timestamp, nonce};   Array.Sort (ARRTMP); Dictionary sort String tmpstr = string. 
  Join ("", arrtmp); 
  Tmpstr = FormsAuthentication.HashPasswordForStoringInConfigFile (tmpstr, "SHA1"); 
  Tmpstr = Tmpstr.tolower (); 
  if (tmpstr = = signature) {return true; 
  else {return false; }. private void Valid () {String echostr = request.querystring["Echostr"]. 
  ToString (); if (Checksignature ()) {if (!string). 
      IsNullOrEmpty (ECHOSTR)) {Response.Write (ECHOSTR); 
    Response.End (); }}///<summary>///write log (for tracking)///</summary> private void Writelog (string strmemo) {Stri 
  ng filename = Server.MapPath ("/logs/log.txt"); if (! 
  Directory.Exists (Server.MapPath ("//logs//")) Directory.CreateDirectory ("//logs//"); 
  StreamWriter sr = null; try {if (! 
 File.exists (filename)) {sr = file.createtext (filename);   else {sr = file.appendtext (filename); } Sr. 
  WriteLine (Strmemo); The catch {} finally {if (SR!= null) Sr. 
  Close ();  } 
}

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