PowerBuilder Requires Chilkat v10.1.2+

Secure FTP with Client Certificate

See more FTP Examples

Chilkat FTP2 provides the ability to use a client certificate with secure FTP (implicit or explicit SSL/TLS). This example demonstrates how to load a certificate from a .pfx and use it as the client-side SSL cert. Note: Client-side certificates are only needed in situations where the server demands one. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Ftp
oleobject loo_CertStore
string ls_Password
oleobject loo_JsonCN
oleobject loo_Cert

li_Success = 0

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

loo_Ftp = create oleobject
li_rc = loo_Ftp.ConnectToNewObject("Chilkat.Ftp2")
if li_rc < 0 then
    destroy loo_Ftp
    MessageBox("Error","Connecting to COM object failed")
    return
end if

loo_Ftp.Hostname = "ftp.example.com"
loo_Ftp.Port = 21
loo_Ftp.Username = "test"
loo_Ftp.Password = "test"

//  This example will use explict TLS/SSL.
//  Establish an explicit secure channel after connection
//  on the standard FTP port 21.
loo_Ftp.AuthTls = 1

//  The Ssl property is for establishing an implicit SSL connection
//  on port 990.  Because this example uses explicit SSL, it 
//  should remain 0.
loo_Ftp.Ssl = 0

//  Load a certificate from a .pfx
//  A PFX may contain several certs, including the certificates
//  in a chain of authority.
loo_CertStore = create oleobject
li_rc = loo_CertStore.ConnectToNewObject("Chilkat.CertStore")

ls_Password = "***"
//  Load the certs from a PFX into an in-memory certificate store:
li_Success = loo_CertStore.LoadPfxFile("chilkat.pfx",ls_Password)
if li_Success <> 1 then
    Write-Debug loo_CertStore.LastErrorText
    destroy loo_Ftp
    destroy loo_CertStore
    return
end if

//  Find the desired certificate.
loo_JsonCN = create oleobject
li_rc = loo_JsonCN.ConnectToNewObject("Chilkat.JsonObject")

loo_JsonCN.UpdateString("CN","cert common name")

loo_Cert = create oleobject
li_rc = loo_Cert.ConnectToNewObject("Chilkat.Cert")

li_Success = loo_CertStore.FindCert(loo_JsonCN,loo_Cert)
if li_Success = 0 then
    Write-Debug "Certificate not found!"
    destroy loo_Ftp
    destroy loo_CertStore
    destroy loo_JsonCN
    destroy loo_Cert
    return
end if

//  Use this certificate for our secure (SSL/TLS) connection:
li_Success = loo_Ftp.SetSslClientCert(loo_Cert)

//  Connect and login to the FTP server.  The connection is 
//  made secure because of the AuthTls setting.
li_Success = loo_Ftp.Connect()
if li_Success <> 1 then
    Write-Debug loo_Ftp.LastErrorText
    destroy loo_Ftp
    destroy loo_CertStore
    destroy loo_JsonCN
    destroy loo_Cert
    return
else
    //  LastErrorText contains information even when
    //  successful. This allows you to visually verify
    //  that the secure connection actually occurred.
    Write-Debug loo_Ftp.LastErrorText
end if

Write-Debug "Secure FTP Channel Established!"

//  Do whatever you're doing to do ...
//  upload files, download files, etc...

//  .....
//  .....

li_Success = loo_Ftp.Disconnect()


destroy loo_Ftp
destroy loo_CertStore
destroy loo_JsonCN
destroy loo_Cert