.NET Framework and FTPS

I have been trying for many days to set up a connection with an FTPS server but was not able to connect and retrieve even just a list of files. I wanted to achieve it by simply using the FTPWebRequest already available in .NET framework.

I tried the following link and many others:

http://blogs.msdn.com/adarshk/archive/2005/04/22/410925.aspx

After an effort of 2-3 days, however, I came to know that the .NET framework 2.0 till now supports only EXPLICIT FTP over SSL and not Implicit connection (which is usually established above port 990)

http://social.msdn.microsoft.com/forums/en-US/netfxnetcom/thread/491341d3-0dd6-4c60-94c9-ca4d4cf3450a/

http://www.developmentnow.com/g/46_2006_5_0_0_755554/implicit-ftp--SSL-problem.htm

Turned out I could not do this without an external component involved. I tested the component available here and was able to connect to my FTP and didnt even require to verify the client certificate:

http://www.rebex.net/download/GetFileNotify.aspx?f=RebexTotalPack-Trial-1.0.3428.0-DotNet2.0.exe

A sample code of the function I used is:

Public Function GetFileByRebex()

Dim ftp As New Ftp()

ftp.Connect(ConfigurationManager.AppSettings("FTPUrl").ToString(), 990, Nothing, FtpSecurity.Implicit)

ftp.Login(ConfigurationManager.AppSettings("FTPUser"), ConfigurationManager.AppSettings("FTPPw"))

ftp.ChangeDirectory(ConfigurationManager.AppSettings("FTPWorkingDir"))

Dim fileNames As FtpList

fileNames = ftp.GetList()

Dim i As Integer

For i = 0 To (fileNames.Count - 1)

'Dim b As String

'b = fileNames.Item(i).Modified.Date.ToString()

If (fileNames.Item(i).Modified.Date.Equals(Today.Date)) Then

'Download file

todaysFileName = Now

todaysFileName = todaysFileName.Replace("/", "-")

todaysFileName = todaysFileName.Replace(":", "-")

ftp.GetFile(fileNames.Item(i).Name, Server.MapPath(ConfigurationManager.AppSettings("DownloadFolderName")) + todaysFileName + ".csv")

Exit For

End If

Next

End Function