Swift

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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Swift


func chilkatTest() {
    var success: Bool = false

    //  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.

    let imap = CkoImap()!

    //  Open the SSH tunnel first.
    var sshPort: Int = 22
    success = imap.sshOpenTunnel(sshHostname: "ssh.example.com", sshPort: sshPort)
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    //  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.
    var sshPassword: String?

    //  Authenticate the SSH tunnel (this is SSH authentication, separate from IMAP login).
    success = imap.sshAuthenticatePw(sshLogin: "sshUser", sshPassword: sshPassword)
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    //  With the SSH tunnel in place, connect and log in to the IMAP server as usual.  The IMAP
    //  traffic flows through the tunnel automatically.
    imap.ssl = true
    imap.port = 993
    success = imap.connect(hostname: "imap.example.com")
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    success = imap.login(login: "user@example.com", password: "myPassword")
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    success = imap.disconnect()
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    success = imap.sshCloseTunnel()
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }


}