SecureFtp ActiveX Control

Use the SecureFtp control to automatically authenticate and encrypt/decrypt all data sent and received over an FTP connection using SSL2, SSL3, PCT, and TLS. Features include:

• Select SSL 2.0, SSL 3.0, PCT, TLS or unencrypted FTP communications.
• Customize certificate acceptance or rejection.
• Client authentication fully supported.
• Use the Get method to download ANY file with only one line of code or use the Put method to upload ANY file with only one line of code!
• FTP Restart command is fully integrated.
• The Mget and Mput methods make handling multiple files (even directory trees) easy.
• Uniquely capable of SSL over FTP through a Firewall using Dart's proprietary FirewallReady functionality (requires PowerTCP products on both sides of the connection).
• Retrieve and Store methods handle file transfers and include automatic support for restarting transfers that were previously incomplete.
• FTP includes full support for large files (files over 2 GB in size).
• File transfer options are set using simple properties and are automatically sent only when needed, making this control exceptionally efficient AND easy-to-use.
• Files can be transferred between the server and disk OR memory, making this versatile control a superior performer for advanced applications.
• Listing property formats listings into properties for file name, size etc., eliminating the need to write and debug parsing code.
• Standard (unencrypted) mode has built-in support for SOCKS4/5, USER(LOGIN/NOLOGIN), OPEN, SITE(LOGIN/NOLOGIN), and PIPE Proxies and the power to customize for a proprietary Proxy server.

Looking for the .NET version of this control?

Development Environments

• Visual Studio .NET (.NET Framework)
• Visual Basic (VB)
• Visual C++ (VC++)
• FoxPro
• PowerBuilder
• Delphi
• C++ Builder
• ASP
• Office 97/2000

Interface

Code Example

How easy is the SecureFTP Control to use? This example demonstrates creating a secure FTP client which can perform certificate authentication.

Private Sub SecurityTest2()
    ' The FTP server in this example is using Explicit SSL
    SecureFtp1.Authentication = atExplicitNormal

    ' Perform all checks in the Authenticate event
    SecureFtp1.Security = secureNormal

    ' Login to the server. Security will be negotiated first.
    SecureFtp1.Login "weezer", "test", "dart", , 21

    ' Success! SSL connection established. Get help on the STOR 
    ' command (just to test the SSL connection)
    Dim Response As String
    SecureFtp1.Help Response, "STOR"

    ' Print the response.
    Debug.Print (Response)

    ' Logout
    SecureFtp1.Logout
End Sub

Private Sub SecureFtp1_Authenticate(ByVal RemoteCertificate As DartSecureFtpCtl.ICertificate, 
ByVal TrustedRoot As Boolean, ByVal ValidDate As Boolean, ByVal ValidSignature As Boolean, 
Valid As Boolean)

    ' The server's certificate has been received.
    Dim Msg As String

    ' Check to see if it passed all the checks.
    If Not Valid Then
        ' It didn't, so check everything and give the user the option to accept/reject.
        If Not ValidDate Then Msg = Msg + "- Certificate date is invalid" + vbCrLf
        If Not TrustedRoot Then Msg = Msg + "- Certificate Authority is not trusted" 
        + vbCrLf
        If Not ValidSignature Then Msg = Msg + "- Certificate does not contain a valid 
        signature" + vbCrLf

        Msg = "The following conditions are true:" + vbCrLf + vbCrLf + Msg + vbCrLf 
        + vbCrLf
        Msg = Msg + "Do you still wish to authenticate?"
        If MsgBox(Msg, vbYesNo + vbExclamation, "Security Alert") = vbYes Then
            ' User still wants to accept so accept it (by setting Valid to true)
             Valid = True
         End If
     End If
End Sub