Problem sending file via FTP C#

Question

I have an executable that sends a . CSV file via FTP to my client.

Running on my local machine works smoothly but when runs on my client’s server does not work.

Every time I fall in line

request.GetRequestStream()

get the error message

Unable to connect to the remote server

Follow the code of my application

string pathArquivoConsumoFull = string.Format("{0}\\{1}", arquivoData[0].DirectoryName, arquivoData[0].Name);

Console.WriteLine("patharquivoConsumo - " + pathArquivoConsumoFull);

FtpWebRequest request = (FtpWebRequest)WebRequest.Create(enderecoFTP + "/" + Path.GetFileName(arquivoData[0].Name));
request.Method = WebRequestMethods.Ftp.UploadFile;

request.Credentials = new NetworkCredential(nomeUsuarioFTP, passFTP);
request.UsePassive = true;
request.UseBinary = true;
request.KeepAlive = false;

var stream = File.OpenRead(pathArquivoConsumoFull);
byte[] buffer = new byte[stream.Length];
stream.Read(buffer, 0, buffer.Length);
stream.Close();

Console.WriteLine("Entra no reqStream");

using (var reqStream = request.GetRequestStream())
{
    reqStream.Write(buffer, 0, buffer.Length);
    reqStream.Close();
}

Console.WriteLine("Passou reqStream!!!");

I installed Filezila on the server and have access to FTP address for upload and download.

Answer 1

I use the following method for UPLOAD and run on the client server without problems, make a comparison or even a test according to your needs and see the result.

    public static Byte[] StartUploadsFtp(out string pstrMsg, out bool pbooRetorno, string pstrDiretorioArq, int pnuEndRemotoFtp)
    {
        pstrMsg = default(String);
        pbooRetorno = default(Boolean);
        byte[] buffer = default(Byte[]);

        try
        {
            DataTable dt = Dal.SelectInfoConfigFtpDAL(out pstrMsg, out pbooRetorno, pnuEndRemotoFtp);

            if (dt.Rows.Count > 0 && dt.Rows.Count == 1)
            {
                FileInfo fileInfo = new FileInfo(pstrDiretorioArq);

                var strUsuario = dt.Rows[0]["ftp_usuario"].ToString();
                var strSenha = dt.Rows[0]["ftp_senha"].ToString();
                var strServidor = dt.Rows[0]["ftp_servidor"].ToString();
                var strDiretorioFtp = dt.Rows[0]["diretorio_ftp"].ToString();

                using (FileStream fileStream = File.OpenRead(pstrDiretorioArq))
                {
                    buffer = new byte[fileStream.Length];

                    fileStream.Read(buffer, 0, buffer.Length);

                    // Cria o XML do arquivo Txt, para fazer o Upload para o FTP
                    Uri uri = new Uri(string.Format(@"{0}//{1}//{2}", strServidor, strDiretorioFtp, fileInfo.Name));

                    // Criando uma requisição FTP
                    FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(uri);
                    request.Credentials = new NetworkCredential(strUsuario, strSenha);
                    request.KeepAlive = false;
                    request.Method = WebRequestMethods.Ftp.UploadFile;
                    request.UseBinary = true;
                    request.ContentLength = buffer.Length;

                    // Escreve no arquivo
                    using (Stream stream = request.GetRequestStream())
                    {
                        stream.Write(buffer, 0, buffer.Length);

                        pbooRetorno = true;
                    }
                }
            }
            else
            {
                pstrMsg = string.Format("Não foram encontrados os dados de configuração do FTP.");

                pbooRetorno = false;
            }
        }
        catch (Exception ex)
        {
            pstrMsg = string.Format("Erro:\nMétodo 'StartUploads'\nDetalhes: {0}", ex.Message);

            pbooRetorno = false;
        }
        return buffer;
    }

Answer 2

The problem was the user running my process in Job, he did not have the credentials necessary to open a connection to the client’s FTP address