#!/bin/sh

if [ "$2" = "PRE-INSTALL" ]; then

if [ -z "${CLAMAVUSER}" ]; then
	CLAMAVUSER=clamav
fi

if [ -z "${CLAMAVGROUP}" ]; then
	CLAMAVGROUP=clamav
fi

CLAMRUN=/var/run/clamav
CLAMLOG=/var/log/clamav

echo "===> Adding user \"${CLAMAVUSER}\" if necessary."
if ! pw groupshow "${CLAMAVGROUP}" 2>/dev/null 1>&2; then
	if pw groupadd ${CLAMAVGROUP}; then
		echo "===> Added group \"${CLAMAVGROUP}\"."
	else
                echo "===> Adding group \"${CLAMAVGROUP}\" failed..."
                exit 1
	fi
fi

if ! pw usershow "${CLAMAVUSER}" 2>/dev/null 1>&2; then
	if pw useradd ${CLAMAVUSER} -g ${CLAMAVGROUP} -h - \
		-s "/usr/sbin/nologin" -d "/nonexistent" \
		-c "Clam Antivirus"; \
        then
                echo "===> Added user \"${CLAMAVUSER}\"."
        else
                echo "===> Adding user \"${CLAMAVUSER}\" failed..."
                exit 1
        fi
fi

echo "===> Setting permissions..."
mkdir -p "${CLAMRUN}"
chown "${CLAMAVUSER}:${CLAMAVGROUP}" "${CLAMRUN}"

mkdir -p "${CLAMLOG}"
chown "${CLAMAVUSER}:${CLAMAVGROUP}" "${CLAMLOG}"
fi

if [ "$2" = "POST-INSTALL" ]; then
	echo "===> Updating virus definitions..."
	$1/bin/freshclam -u $3 --datadir=$4
fi

exit 0