vpn

#!/bin/bash
if [ -z $(docker ps -q -f name=openvpn) ]
then
    FILEPATH=`zenity --file-selection --title="VPN Connection - choose config file" --file-filter="OpenVPN configuration | *.ovpn *.conf" --file-filter="All files | *"`
    case $? in
         1)
                zenity  --info --text "No file chosen.";;
         -1)
                zenity  --error --text "Unexpected error.";;
    esac

    if [ ! $? -eq 0 ]
    then
        exit;
    fi

elif [ ! -z $(docker ps -q -f name=openvpn) ]
then
    zenity --question --title "VPN Connection" --text="Would you like to disconnect from vpn?" --ok-label="Yes" --cancel-label="No"
    if [ $? = 0 ]
    then
        DISCONNECT=true
    else
        exit;
    fi
fi


if [ ! -z $FILEPATH ]
then
    FILE=$(basename $FILEPATH)
    DIR=$(dirname $FILEPATH)

    docker run -d \
         --cap-add=NET_ADMIN \
         --device /dev/net/tun \
         --name openvpn \
         -v $DIR:/vpn \
         -p "3128:3128" \
         --dns=8.8.4.4 \
         --dns=8.8.8.8 \
         --dns=192.168.22.1 \
         --dns=192.168.22.3 \
    tsari/openvpn

    if [ $? -eq 0 ] 
    then
        passfile=userpass.conf

        name=$(zenity --title="VPN Credentials" --text "Enter the vpn username" --entry)
        pass=$(zenity --title="VPN Credentials" --text "Enter the vpn password" --password)
        printf $name > $passfile
        printf "\n" >> $passfile
        printf $pass >> $passfile

        docker exec -d openvpn openvpn --cd /vpn --config /vpn/$FILE --auth-user-pass $passfile --management localhost 9999 && \
        rm $passfile

        if [ $? -eq 0 ] 
        then 
            zenity --info --text="Successfully connected to vpn!"
        else
            zenity --error --title "VPN Connection" --text "Failed to connect"
            docker stop openvpn
            docker rm openvpn
        fi
    fi
elif [ $DISCONNECT = true ]
then
    docker exec openvpn openvpn-disconnect
    docker stop openvpn
    docker rm openvpn

    if [ $? = 0 ]; then
        zenity --info --text="Successfully disconnected from vpn!"
    fi
fi