Chilkat2-Python

FTP Connect, Examine Server Certificate, and then Authenticate

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Demonstrates how to connect to an FTP server, examine the server's SSL/TLS certificate, and then, if it meets the application's security requirements, proceed to authenticate. Chilkat2-Python

import sys
import chilkat2

success = False

# This example assumes Chilkat Ftp2 to have been previously unlocked.
# See Unlock Ftp2 for sample code.

ftp = chilkat2.Ftp2()

ftp.Hostname = "www.authtls-ftps-server.com"
ftp.Username = "FTP_LOGIN"
ftp.Password = "FTP_PASSWORD"
ftp.AuthTls = True
ftp.Port = 21

# Connect to the FTP server using explicit TLS (AUTH TLS).
success = ftp.ConnectOnly()
if (success == False):
    print(ftp.LastErrorText)
    sys.exit()

# Get the FTP server's certificate.
serverCert = chilkat2.Cert()
success = ftp.GetServerCert(serverCert)
if (success == False):
    print(ftp.LastErrorText)
    sys.exit()

# Now that we have the certificate, we can check it in any way we desire.
# (See the online reference documentation for the certificate object's methods
# and properties)...

# Assuming the certificate is OK, proceed to authenticate with the FTP server.
success = ftp.LoginAfterConnectOnly()
if (success == False):
    print(ftp.LastErrorText)
    sys.exit()

# 
# Proceed with uploading/download files, etc...
# 

ftp.Disconnect()
print("Success.")