Post 파일 업로드 클라이언트 모듈

어플리케이션에서 파일 업로드 하는 방법을 구현해 보자
파일과 폼데이타를 같이 보내보자

서버단은 닷넷 프레임워크에 있으니 어렵지 않게 구현이 가능할 것인다.

실제 업로드 사용중 모듈에서 빼서 가져왔다.
약간의 에러가 있을지 모르겠다.

공부한다 생각하고 나머지는 찾아보는게 좋을것 같다.

string dataBoundary = Guid.NewGuid().ToString();

      
      FileInfo fileInfo = new FileInfo(arrFullFileName[i].ToString());
      FileStream fs = new FileStream(arrFullFileName[i].ToString(), FileMode.Open, FileAccess.Read);

      long currSizeForThisFile = 0;

      HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(urlPath);
      webRequest.UserAgent = "fileUpload";
      webRequest.ContentType = "multipart/form-data; boundary=" + dataBoundary;
      webRequest.Method = "POST";
      webRequest.KeepAlive = true;

      string headerStr = String.Format(
         "--{0}\r\n"
        + "Content-Disposition: form-data; name=\"File1\"; filename=\"{1}\"\r\n"
        + "Content-Type: application/octet-stream\r\n"
        + "\r\n",
        dataBoundary, fileInfo.Name);

      StringBuilder postParam = new StringBuilder();

      postParam.AppendFormat("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"\r\n\r\n{2}\r\n", dataBoundary, "index", (i+1).ToString());
      postParam.AppendFormat("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"\r\n\r\n{2}\r\n", dataBoundary, "file_path", arrFullFilePath[i]);
      postParam.AppendFormat("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"\r\n\r\n{2}\r\n", dataBoundary, "file_size", fileInfo.Length.ToString());

      postParam.Append(headerStr);

      //Encoding encoding = Encoding.UTF8;
      //postResult = encoding.GetBytes(postParam.ToString());
      byte[] headerBytes = Encoding.Default.GetBytes(postParam.ToString());

      //byte[] headerBytes = Encoding.Default.GetBytes(headerStr);

      //string trailerStr = String.Format("--{0}--\r\n", dataBoundary);
      string trailerStr = String.Format("\r\n--{0}\r\n", dataBoundary);

      byte[] trailerBytes = Encoding.Default.GetBytes(trailerStr);

      webRequest.ContentLength = headerBytes.Length + trailerBytes.Length + fileInfo.Length;

      Stream webStream = webRequest.GetRequestStream();

      // write the header to the web stream
      webStream.Write(headerBytes, 0, headerBytes.Length);

      //webStream.Write(postResult, headerBytes.Length, postResult.Length);

      // write the file to the stream
      byte[] buffer = new byte[1024 * 10];
      const int LENGTH = 1024;
      const int OFFSET = 0;
      int rcvd = 0;

      do
      {
       rcvd = fs.Read(buffer, OFFSET, LENGTH);
       if (rcvd > 0 && !enableExit)
       {
        webStream.Write(buffer, 0, rcvd);

        currSize += rcvd;
        currSizeForThisFile += rcvd;

        this.SetStatus(i + 1, this.arrFullFileName.Length, currSize, currSizeForThisFile, this.totalSize, arrFileSize[i], fileInfo.Name);

       }
      } while (rcvd > 0);

      webStream.Write(trailerBytes, 0, trailerBytes.Length);

      using (StreamReader sr = new StreamReader(((HttpWebResponse)webRequest.GetResponse()).GetResponseStream()))
      {
       strUPloadReturnXml = sr.ReadToEnd();
      }

      System.Threading.Thread.Sleep(50);

      fs.Close();
      webStream.Close();