Zip file is getting corrupted after uploaded to server using C#

Question

I am trying to upload a zip file to server using C# (Framework 4)and following is my code.

string ftpUrl = ConfigurationManager         


        

Answer 1

This is the problem:

StreamReader sourceStream = new StreamReader(fileToBeUploaded);
byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());

StreamReader (and any TextReader) is for text data. A zip file isn't text data.

Just use:

byte[] fileContents = File.ReadAllBytes(fileToBeUploaded);

That way you're not treating binary data as text, so it shouldn't get corrupted.

Or alternatively, don't load it all into memory separately - just stream the data:

using (var requestStream = request.GetRequestStream())
{
    using (var input = File.OpenRead(fileToBeUploaded))
    {
        input.CopyTo(requestStream);
    }
}

Also note that you should be using using statements for all of these streams, rather than just calling Close - that way the resources will be disposed even if an exception is thrown.