FTP Upload Problem

Jose Saiz

9y3.8k

FileInfo fileInfo = new FileInfo(filename);
string sFtpHostSite = "ftp://" + _sFtpHost.Replace("\0", "");
//- Get the object used to communicate with the server.
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(sFtpHostSite + @"/" + fileInfo.Name);
request.Method = WebRequestMethods.Ftp.UploadFile;
//- FTP site login credential.
request.Credentials = new NetworkCredential(_sFtpUserId.Trim().Replace("\0", ""), _sFtpPwd.Trim().Replace("\0", ""));
request.KeepAlive = false;
request.Method = "STOR";
request.UseBinary = true;
// Copy the contents of the file to the request stream.
StreamReader sourceStream = new StreamReader(_sLocalPath.Replace("\0","") + fileInfo.Name);
byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
sourceStream.Close();
request.ContentLength = fileContents.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(fileContents, 0, fileContents.Length);
requestStream.Close();
//- Wrapping up
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription);
//- Good Bye
response.Close();
}
catch (Exception oErMsg1)
{
Console.WriteLine(oErMsg1.Message, "Error Occurred while uploading file to FTP server.");
}

Does anyone knows why when the file gets uploaded to the FTP-Server it is not the same as the Local-directory?

Explain:

I compress zip some folders on the local computer using 7z library when I open the compressed zip file on my local for test it open and I can unzip it with no problem but once I upload it using my c# FTP-Upload the size of the file is different and when I download it regardless the FTP client used for download the file is corrupted I can't open it.

Please see my code for more detail

Thanks in advance

4 Replies

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Prakash Kumar9y ago
Accepted answer
Hi Jose,

should not use StreamReader, Its designed to read only text file.
use BinaryReader instead of StreamReader.

Refer the below links,
http://stackoverflow.com/questions/10330641/uploading-files-to-ftp-are-corrupted-once-in-destination
https://social.msdn.microsoft.com/Forums/vstudio/en-US/b6eef3f3-65df-47b9-99a3-2372de42b728/c-help-with-simple-ftp-upload-using-ftpwebrequest?forum=csharpgeneral
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Jose Saiz9y ago
Thank you very much Prakash Kumar that solved my problem using BinaryReader instead of the StreamReader.

Thanks Again
Happy Holidays
0
Jose Saiz9y ago
Thank you for the reply but neither one of the url Link help me solve my problem.

I do not have problem uploading the file upload to the FTP server with no error thrown
the only problem I am having is that the uploaded file is somehow corrupted and the size does not match with existing local file.

Thanks again
0
Khaja Moizuddin9y ago
As i haven't worked on this issue by i will try to share you some links related to your issue. https://msdn.microsoft.com/en-us/library/ms229715(v=vs.110).aspx http://stackoverflow.com/questions/15268760/upload-file-to-ftp-using-c-sharp https://www.codeproject.com/tips/300226/upload-file-to-server-using-ftp http://www.niteshluharuka.com/upload-files-to-ftp-server-in-c/ http://www.vcskicks.com/csharp_ftp_upload.php Hope this helps
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