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Share an Existing SSH Tunnel (Socket) with IMAP

Demonstrates the Chilkat Imap.UseSshTunnel method, which uses an existing SSH tunnel, represented by a Socket object, for IMAP connections. The only argument is the Socket. Call it before Connect. This example opens and authenticates the tunnel on a Socket, then routes IMAP through it.

Background: A Socket object can open and hold an SSH tunnel that several Chilkat objects share. This is the approach when the tunnel is managed independently of any one protocol object — for example a long-lived tunnel reused across IMAP, POP3, and SMTP sessions — whereas SshOpenTunnel ties the tunnel's lifetime to the Imap object.

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Local $bSuccess = False

;  Demonstrates the Imap.UseSshTunnel method, which uses an existing SSH tunnel (represented by
;  a Socket) for IMAP connections.  The only argument is the Socket.  Call it before Connect.

$oImap = ObjCreate("Chilkat.Imap")

;  Open and authenticate an SSH tunnel on a Socket object.  This tunnel can be shared with
;  other Chilkat objects.
$oSshTunnel = ObjCreate("Chilkat.Socket")
Local $iSshPort = 22
$bSuccess = $oSshTunnel.SshOpenTunnel("ssh.example.com",$iSshPort)
If ($bSuccess = False) Then
    ConsoleWrite($oSshTunnel.LastErrorText & @CRLF)
    Exit
EndIf

;  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.
Local $sshPassword

$bSuccess = $oSshTunnel.SshAuthenticatePw("sshUser",$sshPassword)
If ($bSuccess = False) Then
    ConsoleWrite($oSshTunnel.LastErrorText & @CRLF)
    Exit
EndIf

;  Tell the Imap object to use the existing tunnel.
$bSuccess = $oImap.UseSshTunnel($oSshTunnel)
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

;  Now connect and log in to the IMAP server through the tunnel.
$oImap.Ssl = True
$oImap.Port = 993
$bSuccess = $oImap.Connect("imap.example.com")
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oImap.Login("user@example.com","myPassword")
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oImap.Disconnect()
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf