PureBasic

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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PureBasic

IncludeFile "CkImap.pb"

Procedure ChilkatExample()

    success.i = 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.

    imap.i = CkImap::ckCreate()
    If imap.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ;  Open the SSH tunnel first.
    sshPort.i = 22
    success = CkImap::ckSshOpenTunnel(imap,"ssh.example.com",sshPort)
    If success = 0
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        ProcedureReturn
    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.
    sshPassword.s

    ;  Authenticate the SSH tunnel (this is SSH authentication, separate from IMAP login).
    success = CkImap::ckSshAuthenticatePw(imap,"sshUser",sshPassword)
    If success = 0
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        ProcedureReturn
    EndIf

    ;  With the SSH tunnel in place, connect and log in to the IMAP server as usual.  The IMAP
    ;  traffic flows through the tunnel automatically.
    CkImap::setCkSsl(imap, 1)
    CkImap::setCkPort(imap, 993)
    success = CkImap::ckConnect(imap,"imap.example.com")
    If success = 0
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        ProcedureReturn
    EndIf

    success = CkImap::ckLogin(imap,"user@example.com","myPassword")
    If success = 0
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        ProcedureReturn
    EndIf

    success = CkImap::ckDisconnect(imap)
    If success = 0
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        ProcedureReturn
    EndIf

    success = CkImap::ckSshCloseTunnel(imap)
    If success = 0
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        ProcedureReturn
    EndIf



    CkImap::ckDispose(imap)


    ProcedureReturn
EndProcedure