PowerBuilder
PowerBuilder
Continue SFTP Keyboard-Interactive Authentication
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Demonstrates the Chilkat SFtp.ContinueKeyboardAuth method, which submits a response to a keyboard-interactive prompt. The only argument is the response text; for a request with multiple prompts, an XML response is supplied instead. It returns XML indicating the next prompt or the final result.
Background: This is the second half of the exchange started by
StartKeyboardAuth. A server may issue several rounds of prompts, so a robust client loops: submit answers, read the returned XML, and continue until it sees success or failure. On success, remember that InitializeSftp still must be called before any file operation.Chilkat PowerBuilder Downloads
integer li_rc
integer li_Success
oleobject loo_Sftp
integer li_Port
string ls_InfoRequestXml
string ls_Password
string ls_Result
li_Success = 0
// Demonstrates the SFtp.ContinueKeyboardAuth method, which submits a response to a
// keyboard-interactive prompt. The only argument is the response. For multiple prompts, an
// XML response is supplied instead.
loo_Sftp = create oleobject
li_rc = loo_Sftp.ConnectToNewObject("Chilkat.SFtp")
if li_rc < 0 then
destroy loo_Sftp
MessageBox("Error","Connecting to COM object failed")
return
end if
// Step 1: Connect the SSH transport. Port 22 is the usual port.
li_Port = 22
li_Success = loo_Sftp.Connect("sftp.example.com",li_Port)
if li_Success = 0 then
Write-Debug loo_Sftp.LastErrorText
destroy loo_Sftp
return
end if
// Begin keyboard-interactive authentication to receive the server's prompt(s).
ls_InfoRequestXml = loo_Sftp.StartKeyboardAuth("mySshLogin")
if loo_Sftp.LastMethodSuccess = 0 then
Write-Debug loo_Sftp.LastErrorText
destroy loo_Sftp
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.
ls_Password = "mySshPassword"
// Submit the response (typically the password). The returned XML indicates the next prompt or
// the final result.
ls_Result = loo_Sftp.ContinueKeyboardAuth(ls_Password)
if loo_Sftp.LastMethodSuccess = 0 then
Write-Debug loo_Sftp.LastErrorText
destroy loo_Sftp
return
end if
Write-Debug ls_Result
// On success, initialize the SFTP subsystem.
li_Success = loo_Sftp.InitializeSftp()
if li_Success = 0 then
Write-Debug loo_Sftp.LastErrorText
destroy loo_Sftp
return
end if
loo_Sftp.Disconnect()
destroy loo_Sftp