CkPython

Set a Remote File's Owner and Group

Demonstrates the Chilkat SFtp.SetOwnerAndGroup method, which sets the owner and group of a remote item. The arguments are the remote path (or handle), whether the first argument is a handle, and the new owner and group values.

Background: This is the SFTP equivalent of chown. Changing ownership is a privileged operation on Unix systems — ordinary users generally cannot give their files away — so expect it to fail unless the authenticated account has the necessary rights. It is most often used by administrative jobs that upload files which must then belong to a service account, such as a web server user.

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import sys
import chilkat

success = False

#  Demonstrates the SFtp.SetOwnerAndGroup method, which sets the owner and group of a remote item.
#  The 1st argument is the remote path (or handle), the 2nd (isHandle) indicates which, and the
#  3rd and 4th are the new owner and group.

sftp = chilkat.CkSFtp()

#  Connect, authenticate, and initialize the SFTP subsystem.
port = 22
success = sftp.Connect("sftp.example.com",port)
if (success == False):
    print(sftp.lastErrorText())
    sys.exit()

#  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.
password = "mySshPassword"

success = sftp.AuthenticatePw("mySshLogin",password)
if (success == False):
    print(sftp.lastErrorText())
    sys.exit()

success = sftp.InitializeSftp()
if (success == False):
    print(sftp.lastErrorText())
    sys.exit()

#  The 1st argument is a path, so isHandle is False.  Changing ownership typically requires
#  elevated privileges on the server.
isHandle = False
success = sftp.SetOwnerAndGroup("subdir/report.pdf",isHandle,"www-data","www-data")
if (success == False):
    print(sftp.lastErrorText())
    sys.exit()

print("Owner and group set.")

sftp.Disconnect()