Lianja

Limit FTP DownloadTree by Modification Date

Demonstrates the Chilkat Ftp2.SetOldestDateStr method, which sets the oldest remote modification time eligible for DownloadTree. The only argument is an RFC 822 date-time string; files older than it are skipped. It is a void method.

Background: This is a date filter for the recursive download: set a cutoff and DownloadTree pulls only files modified on or after it, ignoring everything older. It is ideal for fetching just recent activity — new logs, today's uploads — from a directory that also holds a large archive you do not want to re-download. The RFC 822 string carries a timezone so the cutoff is unambiguous.

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llSuccess = .F.

//  Demonstrates the Ftp2.SetOldestDateStr method, which sets the oldest remote modification time
//  eligible for DownloadTree.  The only argument is an RFC 822 date-time string.  It is a void
//  method.

loFtp = createobject("CkFtp2")

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"

llSuccess = loFtp.Connect()
if (llSuccess = .F.) then
    ? loFtp.LastErrorText
    release loFtp
    return
endif

llSuccess = loFtp.ChangeRemoteDir("public_html")
if (llSuccess = .F.) then
    ? loFtp.LastErrorText
    release loFtp
    return
endif

//  Only files modified on or after this date will be considered by DownloadTree.  Files older
//  than this are skipped.
loFtp.SetOldestDateStr("Wed, 01 Jul 2026 00:00:00 -0000")

//  Download only the recently-modified files in the remote tree.
llSuccess = loFtp.DownloadTree("qa_output/recent")
if (llSuccess = .F.) then
    ? loFtp.LastErrorText
    release loFtp
    return
endif

? "Downloaded recently modified files."

llSuccess = loFtp.Disconnect()
if (llSuccess = .F.) then
    ? loFtp.LastErrorText
    release loFtp
    return
endif



release loFtp