#!/bin/bash
## @licence MIT <http://opensource.org/licenses/MIT>
## @author Copyright (C) 2015 Robin Schneider <ypid@riseup.net>

set -e

if [ -z "$OPENVPN" ]; then
    export OPENVPN="$PWD"
fi
if ! source "$OPENVPN/ovpn_env.sh"; then
    echo "Could not source $OPENVPN/ovpn_env.sh."
    exit 1
fi

TARGET="$OPENVPN/server"
if [ -n "$1" ]; then
    TARGET="$1"
fi
mkdir -p "${TARGET}"

## Ensure that no other keys then the one for the server is present.
rm -rf "$TARGET/pki/private" "$TARGET/pki/issued"

FILES=(
    "openvpn.conf"
    "ovpn_env.sh"
    "pki/private/${OVPN_CN}.key"
    "pki/issued/${OVPN_CN}.crt"
    "pki/dh.pem"
    "pki/ta.key"
    "pki/ca.crt"
    "ccd"
)

if [ -f "${OPENVPN}/pki/crl.pem" ]; then
    FILES+=("pki/crl.pem")
fi

# Ensure the ccd directory exists, even if empty
mkdir -p "ccd"

# rsync isn't available to keep size down
# cp --parents isn't in busybox version
# hack the directory structure with tar
tar cf - -C "${OPENVPN}" "${FILES[@]}" | tar xvf - -C "${TARGET}"

echo "Created the openvpn configuration for the server: $TARGET"
