#!/usr/bin/expect -f
#
# Usage:
#   vpn-auto.exp <connection-name> <vpn-user> <vpn-pass> <otp-secret>
#
# Example:
#   ./vpn-auto.exp PEM_PASS VPN_USER VPN_PASS MS_AUTH_OTP
#   ./vpn-auto.exp pass1234 zsolt.alfoldi@nokia.com 1234pass 987456

# never timeout
set timeout -1

# pull args off the command line
if { $argc != 4 } {
    puts stderr "Usage: $argv0 <vpn-name> <user> <pass> <otp-secret>"
    exit 1
}
lassign $argv vpn_pem_pass vpn_user vpn_pass otp

# start the connection
spawn nmcli connection up Nokia --ask

# watch for the prompts and supply answers
expect {
    -re "Enter PEM pass phrase" {
        send "$vpn_pem_pass\r"
        exp_continue
    }
    -re "Username:" {
        send "$vpn_user\r"
        exp_continue
    }
    -re "PASSCODE:" {
        send "$vpn_pass\r"
        exp_continue
    }
    -re "Response:" {
        send "$otp\r"
        exp_continue
    }
    -re "Login failed." {
        send_user "Detected: Login failed. Exiting.\n"
        close
        wait
        exit 1
    }
    eof
}