Visual FoxPro

Capture the FTP Session Log

Demonstrates the SessionLog property (with KeepSessionLog), which holds the in-memory FTP protocol conversation — commands and server replies — collected during the session.

Background: When an FTP operation fails for a non-obvious reason, the exact command/reply exchange is the most useful diagnostic there is, and SessionLog captures it verbatim once KeepSessionLog is enabled. Passwords are omitted, so it is safe to log or attach to a bug report. Over a long session it grows without bound; clear it with ClearSessionLog to bound memory or to isolate the log for one operation.

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Visual FoxPro

LOCAL lnSuccess
LOCAL loFtp

lnSuccess = 0

loFtp = CreateObject('Chilkat.Ftp2')

loFtp.Hostname = "ftp.example.com"
loFtp.Username = "myFtpLogin"

*  Normally you would not hard-code the password in source.  You should instead obtain it
*  from an interactive prompt, environment variable, or a secrets vault.
loFtp.Password = "myPassword"

*  Keep an in-memory log of the FTP protocol conversation for troubleshooting.  Passwords are
*  not recorded in it.
loFtp.KeepSessionLog = 1

lnSuccess = loFtp.Connect()
IF (lnSuccess = 0) THEN
    ? loFtp.LastErrorText
    RELEASE loFtp
    CANCEL
ENDIF

lnSuccess = loFtp.ChangeRemoteDir("public_html")
IF (lnSuccess = 0) THEN
    ? loFtp.LastErrorText
    RELEASE loFtp
    CANCEL
ENDIF

*  The SessionLog contains the protocol commands and server replies collected so far.
? loFtp.SessionLog

lnSuccess = loFtp.Disconnect()
IF (lnSuccess = 0) THEN
    ? loFtp.LastErrorText
    RELEASE loFtp
    CANCEL
ENDIF

RELEASE loFtp