rick

rick

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Downloading zip files.

Jun 1 2006 9:50 AM
Hey guys,

Ive been having a problem downloading files through a proxy server.  it worked fine while i was downloading small test files (zip files to be exact < 5kb) but when i use actual files, they are always corrupt on the client side, but when you open the zip file there are never more than 2 files present and they are corrupt as well.  any help would be greatly appreciated.

Thanks,


here is a before and after screen shot of the zip files, if that helps, and the following is a code snippit.


public void BeginDownload(){

  WebProxy proxy = new WebProxy(ServPath, true);
  proxy
.Credentials = new NetworkCredential(UserName, Pass);
  WebRequest request = WebRequest.Create(ServPath + FileName);
  request
.Proxy = proxy;

  // Send the 'HttpWebRequest' and wait for response.

  HttpWebResponse response = (HttpWebResponse)request.GetResponse();
  System
.IO.Stream stream = response.GetResponseStream();
  FileStream writeStream = new FileStream(DownloadPath + FileName, FileMode.Create, FileAccess.Write);

  ReadWriteStream(stream, writeStream, response.ContentLength);

  response.Close();
}

private void ReadWriteStream(Stream readStream, Stream writeStream, long lLength){

  int Length = Convert.ToInt32(lLength);
  Byte[] buffer = new Byte[Length + (100 - Length%100) + 5];
  int numBytesToRead = Length;
  int numBytesRead = 0;

  while (numBytesToRead > 0){
    
int n;
    n = readStream.Read(buffer, numBytesRead, numBytesToRead);
    WriteStream
.Write(buffer, numBytesRead, numBytesToRead);
    numBytesRead += n;
    numBytesToRead
-= n;
  }
  readStream
.Close();
  writeStream
.Close();

}


Answers (3)