PowerBuilder

Authenticate an IMAP SSH Tunnel with a Password

Demonstrates the Chilkat Imap.SshAuthenticatePw method, which authenticates the SSH tunnel using a username and password. The first argument is the SSH login name and the second is the SSH password. Call SshOpenTunnel first; after SSH authentication succeeds, connect and log in to IMAP.

Background: This is SSH authentication, which is entirely separate from the IMAP login that follows — the SSH credentials belong to the tunnel/jump host, while the IMAP credentials belong to the mail account. Password authentication is the simplest option; use SshAuthenticatePk for key-based authentication, which is generally preferred for automated jobs.

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integer li_rc
integer li_Success
oleobject loo_Imap
integer li_SshPort
string ls_SshPassword

li_Success = 0

//  Demonstrates the Imap.SshAuthenticatePw method, which authenticates the SSH tunnel with a
//  username and password.  The 1st argument is the SSH login name and the 2nd is the SSH
//  password.  Call SshOpenTunnel first.

loo_Imap = create oleobject
li_rc = loo_Imap.ConnectToNewObject("Chilkat.Imap")
if li_rc < 0 then
    destroy loo_Imap
    MessageBox("Error","Connecting to COM object failed")
    return
end if

//  Open the SSH tunnel first.
li_SshPort = 22
li_Success = loo_Imap.SshOpenTunnel("ssh.example.com",li_SshPort)
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if

//  The SSH password is not hard-coded in source.  Insert code here to obtain it from an
//  interactive prompt, environment variable, or a secrets vault.

//  Authenticate the SSH tunnel (this is SSH authentication, separate from IMAP login).
li_Success = loo_Imap.SshAuthenticatePw("sshUser",ls_SshPassword)
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if

//  With the SSH tunnel in place, connect and log in to the IMAP server as usual.  The IMAP
//  traffic flows through the tunnel automatically.
loo_Imap.Ssl = 1
loo_Imap.Port = 993
li_Success = loo_Imap.Connect("imap.example.com")
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if

li_Success = loo_Imap.Login("user@example.com","myPassword")
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if

li_Success = loo_Imap.Disconnect()
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if

li_Success = loo_Imap.SshCloseTunnel()
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if



destroy loo_Imap