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IMAP over Multiple Hop SSH

Demonstrates how to read IMAP email (using TCP or TLS) tunneled through mulitple-hop SSH. The scheme looks like this:

Application => ServerSSH1 => ServerSSH2 => IMAPServer

The ConnectThroughSsh and UseSsh methods are added in Chilkat version 9.5.0.55 to accomplish this task.

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Local $bSuccess = False

; This example assumes the Chilkat API to have been previously unlocked.
; See Global Unlock Sample for sample code.

$oSsh1 = ObjCreate("Chilkat.Ssh")

; Connect directly to the 1st SSH server.
$bSuccess = $oSsh1.Connect("serverssh1.com",22)
If ($bSuccess <> True) Then
    ConsoleWrite($oSsh1.LastErrorText & @CRLF)
    Exit
EndIf

; Authenticate using login/password:
$bSuccess = $oSsh1.AuthenticatePw("ssh1Login","ssh1Password")
If ($bSuccess <> True) Then
    ConsoleWrite($oSsh1.LastErrorText & @CRLF)
    Exit
EndIf

; Connect through the 1st SSH connection to reach a 2nd SSH server.
; Note: Any number of SSH connections may be simultaneously tunneled through a single
; existing SSH connection.
$oSsh2 = ObjCreate("Chilkat.Ssh")
$bSuccess = $oSsh2.ConnectThroughSsh($oSsh1,"serverssh2.com",22)
If ($bSuccess <> True) Then
    ConsoleWrite($oSsh2.LastErrorText & @CRLF)
    Exit
EndIf

; Authenticate with ssh2...
$bSuccess = $oSsh2.AuthenticatePw("ssh2Login","ssh2Password")
If ($bSuccess <> True) Then
    ConsoleWrite($oSsh2.LastErrorText & @CRLF)
    Exit
EndIf

$oImap = ObjCreate("Chilkat.Imap")

; Tell the IMAP object to connect to the IMAP server though the ssh2 tunnel (which itself is routed through ssh1).
; The connection looks like this:  Application => ServerSSH1 => ServerSSH2 => IMAPServer
$bSuccess = $oImap.UseSsh($oSsh2)
If ($bSuccess <> True) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

$oImap.Ssl = True
$oImap.Port = 993

; Connect to an IMAP server (through the multi-hop SSH tunnel)
$bSuccess = $oImap.Connect("imap.someimapserver.com")
If ($bSuccess <> True) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

; Login
$bSuccess = $oImap.Login("myLogin","myPassword")
If ($bSuccess <> True) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

; Do whatever needs to be done...  for example,

; Create the new email folder (sub-mailbox) on the IMAP server.
; If no folder path is provided, the new folder is a sub-mailbox of Inbox.
$bSuccess = $oImap.CreateMailbox("newFolder")
If ($bSuccess <> True) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Success." & @CRLF)

; Close the connection with the IMAP server.  (This closes the tunnel through ssh2)
; The connection with ssh2 is still alive, and may be used for more connections.
$bSuccess = $oImap.Disconnect()

; Close the connection with ssh2.  (This closes the the tunnel through ssh1.)
; The connection with ssh1 is still alive, and may be used for more connections.
$oSsh2.Disconnect 

$oSsh1.Disconnect