FTP Task - Delete Remote files Issue

We are Downloading files from FTP Site using "FTP Task" and we need to remove those files after downloading.

We need to delete files of specific names, like "Names_*.TXT" (All the txt files and Names starting from "Names_") so We are using Delete Remote Files and Remote path we are specifying as "/Names_*.TXT"

This doesn't work its not able to delete the files so, We tried using "*.*" and also given the specific filename like "Names_A1.TXT" then also its not deleting the remote files.

Please let me know the solution.

Thanks,

Priaynk Gajera

Priya,

Do you know for sure you have permissions to delete that file? FTP through command line and see if you are able to delete the file.

-S

|||

Yes,

I am able to delete the files from ftp using command mode as well as by opening ftp site.

|||There are several threads on this problem in this forum. MS claims they cannot reproduce the problem.

It might be specific to a version of FTP or Linux/Unix or something.

What platform and FTP server are you running?|||

Yes

You are correct, I have checked the same thing with same project and its creating problem with Unix server only not with Windows server... Why dont Microsoft people check with Unix server?

|||This problem is specifically with the Unix servers only. The ftp task(File Delete) works fine with Windows FTP Server but doesn't work with UNIX server.

To resolve this issue I have used script task which deletes the files on the ftp server.

This code is to delete all the files which is having names with starting of specific characters and that can be modifies as per your requirement.

The code is mentioned as Below.

Imports System
Imports System.Data
Imports System.Math
Imports System.Net
Imports Microsoft.SqlServer.Dts.Runtime
Imports System.IO
Imports System.Text.Regular"FTP_server").Value.ToString
Dim remoteFilePath As String = Dts.Variables("FTP_filePath").Value.ToString
Dim remotePath As String = Dts.Variables("FTP_root").Value.ToString

Try
Dim fWebRequest1 As FtpWebRequest = CreateWebRequest(WebRequestMethods.Ftp.ListDirectory, remoteServer, remotePath)
Dim fWebResponse1 As FtpWebResponse = CType(fWebRequest1.GetResponse(), FtpWebResponse)
Dim strFileName As String = Dts.Variables("FTP_file_name").Value.ToString

Dim dir As StreamReader = New StreamReader(fWebResponse1.GetResponseStream())
Dim fWebRequest As FtpWebRequest
Dim fWebResponse As FtpWebResponse
Dim aline As String

While Not (dir.EndOfStream)
aline = dir.ReadLine()

If aline.StartsWith(strFileName) Then
fWebRequest = CreateWebRequest(WebRequestMethods.Ftp.DeleteFile, remoteServer, remotePath + "/" + aline)
fWebResponse = CType(fWebRequest.GetResponse(), FtpWebResponse)
Dts.Events.FireWarning(0, "File Deleted on server" & remotePath, "Status Code: " & fWebResponse.StatusCode & " Status Description: " & fWebResponse.StatusDescription, String.Empty, 0)

fWebResponse.Close()
fWebRequest = Nothing
fWebResponse = Nothing

End If
End While

fWebResponse1.Close()
fWebRequest1 = Nothing
fWebResponse1 = Nothing

Catch ex As WebException
Dts.Events.FireWarning(0, "WebException", "Status Code: " & CType(ex.Response, FtpWebResponse).StatusCode & " Status Description: " & CType(ex.Response, FtpWebResponse).StatusDescription & " Message: " & ex.Message & " Stack: " & ex.StackTrace, String.Empty, 0)
End Try

Dts.TaskResult = Dts.Results.Success
End Sub

Private Function CreateWebRequest(ByVal method As String, ByVal uriHost As String, ByVal uriPath As String) As FtpWebRequest

Dim uBuilder As UriBuilder = New UriBuilder()

uBuilder.Scheme = Uri.UriSchemeFtp
uBuilder.Host = uriHost
uBuilder.Path = uriPath

uBuilder.Port = Int32.Parse(Dts.Variables("FTP_port").Value.ToString)

Dim fWebRequest As FtpWebRequest = CType(FtpWebRequest.Create(uBuilder.Uri), FtpWebRequest)

fWebRequest.Method = method
fWebRequest.UseBinary = False
fWebRequest.KeepAlive = False
fWebRequest.Timeout = -1
fWebRequest.Proxy = Nothing
fWebRequest.Credentials = New NetworkCredential(Dts.Variables("FTP_username").Value.ToString, Dts.Variables("FTP_password").Value.ToString)
Return fWebRequest
End Function
End Class