Xbase++ Requires Chilkat v11.0.0+

FTP Connect, Examine Server Certificate, and then Authenticate

See more FTP Examples

Demonstrates how to connect to an FTP server, examine the server's SSL/TLS certificate, and then, if it meets the application's security requirements, proceed to authenticate. Xbase++

LOCAL nSuccess
LOCAL oFtp
LOCAL oServerCert

nSuccess := 0

//  This example assumes Chilkat Ftp2 to have been previously unlocked.
//  See Unlock Ftp2 for sample code.

oFtp := CreateObject("Chilkat.Ftp2")

oFtp:Hostname := "www.authtls-ftps-server.com"
oFtp:Username := "FTP_LOGIN"
oFtp:Password := "FTP_PASSWORD"
oFtp:AuthTls := 1
oFtp:Port := 21

//  Connect to the FTP server using explicit TLS (AUTH TLS).
nSuccess := oFtp:ConnectOnly()
IF (nSuccess == 0)
    ? oFtp:LastErrorText
    oFtp:destroy()
    RETURN
ENDIF

//  Get the FTP server's certificate.
oServerCert := CreateObject("Chilkat.Cert")
nSuccess := oFtp:GetServerCert(oServerCert)
IF (nSuccess == 0)
    ? oFtp:LastErrorText
    oFtp:destroy()
    oServerCert:destroy()
    RETURN
ENDIF

//  Now that we have the certificate, we can check it in any way we desire.
//  (See the online reference documentation for the certificate object's methods
//  and properties)...

//  Assuming the certificate is OK, proceed to authenticate with the FTP server.
nSuccess := oFtp:LoginAfterConnectOnly()
IF (nSuccess == 0)
    ? oFtp:LastErrorText
    oFtp:destroy()
    oServerCert:destroy()
    RETURN
ENDIF

//  Proceed with uploading/download files, etc...
//  

oFtp:Disconnect()
? "Success."

oFtp:destroy()
oServerCert:destroy()