B4X

Get a Remote File's Group

Demonstrates the Chilkat SFtp.GetFileGroup method, which returns a remote file's group ownership. The arguments are the remote path (or handle), whether symbolic links are followed, and whether the first argument is a handle.

Background: The group is the second half of Unix ownership, and it drives the "group" permission bits — the mechanism by which several accounts share access to the same files. As with the owner, the server may return a numeric GID when it cannot resolve a name, and the value is meaningful only on servers that implement Unix-style ownership.

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Dim success As Boolean = False

'  Demonstrates the SFtp.GetFileGroup method, which returns a remote file's group ownership.  The
'  1st argument is the remote path (or handle), the 2nd selects whether symbolic links are
'  followed, and the 3rd indicates whether the 1st argument is a handle.

Dim sftp As ChilkatSFtp
sftp.Initialize("sftp")

'  Connect, authenticate, and initialize the SFTP subsystem.
Dim port As Int = 22
success = sftp.Connect("sftp.example.com", port)
If success = False Then
    Log(sftp.LastErrorText)
    Return
End If


'  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.
Dim password As String = "mySshPassword"

success = sftp.AuthenticatePw("mySshLogin", password)
If success = False Then
    Log(sftp.LastErrorText)
    Return
End If


success = sftp.InitializeSftp
If success = False Then
    Log(sftp.LastErrorText)
    Return
End If


'  The 2nd argument (bFollowLinks) selects whether a symbolic link is followed to its target.
'  The 3rd argument (bIsHandle) is False here because the 1st argument is a path, not an
'  open handle.
Dim bFollowLinks As Boolean = True
Dim bIsHandle As Boolean = False

Dim group As String = sftp.GetFileGroup("subdir/report.pdf", bFollowLinks, bIsHandle)
If sftp.LastMethodSuccess = False Then
    Log(sftp.LastErrorText)
    Return
End If

Log("Group: " & group)

sftp.Disconnect