Xojo Plugin

Get an FTP Listing Entry's Last-Modified Time

Demonstrates the Chilkat Ftp2.GetLastModifiedTimeStr method, which returns the last-modified time of a cached directory-listing entry as an RFC 822 date-time string. The only argument is a zero-based index.

Background: The last-modified time is the workhorse timestamp: it updates whenever a file's contents change and is what sync and mirror logic compares to decide whether a file needs re-transferring. It is the most reliably reported of the three across FTP servers, and the RFC 822 string carries a timezone so comparisons are well defined.

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Dim success As Boolean
success = False

//  Demonstrates the Ftp2.GetLastModifiedTimeStr method, which returns the last-modified time of a
//  cached directory-listing entry as an RFC 822 date-time string.  The only argument is a
//  zero-based index.

Dim ftp As New Chilkat.Ftp2

ftp.Hostname = "ftp.example.com"
ftp.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.
ftp.Password = "myPassword"

success = ftp.Connect()
If (success = False) Then
    System.DebugLog(ftp.LastErrorText)
    Return
End If

success = ftp.ChangeRemoteDir("public_html")
If (success = False) Then
    System.DebugLog(ftp.LastErrorText)
    Return
End If

//  GetDirCount retrieves the directory listing on the first call and returns the number of
//  entries.  A negative return indicates failure.
Dim n As Int32
n = ftp.GetDirCount()
If (n < 0) Then
    System.DebugLog(ftp.LastErrorText)
    Return
End If

Dim i As Int32
For i = 0 To n - 1
    Dim name As String
    name = ftp.GetFilename(i)

    //  The value is an RFC 822 string such as "Fri, 21 Nov 1997 09:55:06 -0600".
    Dim lastModified As String
    lastModified = ftp.GetLastModifiedTimeStr(i)
    System.DebugLog(name + "  modified " + lastModified)
Next

success = ftp.Disconnect()
If (success = False) Then
    System.DebugLog(ftp.LastErrorText)
    Return
End If