The provided format of the path is not supported

Question

I am trying to upload a file via FTP

The provided format of the path is not supported

Code:

[HttpPost]
    public ActionResult Guardar_registro(Models.CascadingModelLevantamiento model, HttpPostedFileBase file)
    {
      var NombreArchivo = Path.GetFileName(file.FileName);
      string name = Path.Combine("" + NombreArchivo);
      string ftpfullpath = Path.Combine(@"ftp://xxx.xxx.xx.xx:xx" + @"/test/" + name);
      FtpWebRequest ftp = (FtpWebRequest)FtpWebRequest.Create(ftpfullpath);
      ftp.Credentials = new NetworkCredential("xxx@xx.com", "xxx");
      ftp.KeepAlive = true;
      ftp.UseBinary = true;
      ftp.Method = WebRequestMethods.Ftp.UploadFile;
      FileStream fs = System.IO.File.OpenRead(ftpfullpath);
      byte[] buffer = new byte[fs.Length];
      fs.Read(buffer, 0, buffer.Length);
      fs.Close();
      Stream ftpstream = ftp.GetRequestStream();
      ftpstream.Write(buffer, 0, buffer.Length);
      ftpstream.Close();
 }

`System.IO.File.OpenRead(ftpfullpath);` will attempt to read a path on the local machine at the specified path of the FTP server. — Kieran Devlin, Oct 11 '19 at 15:55
I already do it in `FileStream fs = System.IO.File.OpenRead (ftpfullpath);` ...... the file comes `HttpPostedFileBase` since I use MVC — Morquecho, Oct 11 '19 at 15:58
Unrelated, but important: you need to [dispose](https://learn.microsoft.com/en-us/dotnet/api/system.idisposable.dispose?view=netframework-4.8) the streams you create and organize your code (instead of putting all in one place) :) — Yeldar Kurmangaliyev, Oct 11 '19 at 16:00

score 1 · Accepted Answer · answered Oct 11 '19 at 16:20

1

Do not re-invent the wheel, try something like this:

using (var client = new WebClient())
{
    client.Credentials = new NetworkCredential(ftpUsername, ftpPassword);
    client.UploadFile("ftp://host/path.zip", WebRequestMethods.Ftp.UploadFile, localFile);
}

Resource link: WebClient

answered Oct 11 '19 at 16:20

Jorge Apodaca

56
4

I already used that but I get this error: `Exception during a WebClient request` – Morquecho Oct 11 '19 at 16:28
@Morquecho you need to add more error information is it the same error as in your question? – Jeroen Heier Oct 11 '19 at 16:45

score 0 · Answer 2 · answered Oct 11 '19 at 16:37

What goes to File.OpenRead must be a valid local (Windows) path. Not FTP URL.

Something like

string filename = System.IO.Path.Combine(@"C:\local\path", NombreArchivo);
FileStream fs = System.IO.File.OpenRead(filename);

Though as correctly commented in the other answer, way easier is to use WebClient.UploadFile.

See Upload file and download file from FTP.

The provided format of the path is not supported

2 Answers2