#!/bin/sh

set -e

case "$1" in
    remove|deconfigure)

        # Include CARNet functions.
        . /usr/share/carnet-tools/functions.sh

        PKG="mod-security-cn"
	A2DIR="/etc/apache2"
        CONFDIR="$A2DIR/conf.d"
        MODSECCONF="$CONFDIR/mod-security-cn.conf"
        need_restart=0

        # Remove configuration file generated by this CARNet package.
        if [ -f "$MODSECCONF" ]; then
            if egrep -q "^## Begin - Generated by CARNet package mod-security-cn$" "$MODSECCONF"; then
                cp_echo "CN: Removing configuration file ${MODSECCONF}."
                rm -f $MODSECCONF
		need_restart=1
            fi
        fi

        # Restart Apache2 web server.
	if [ $need_restart -eq 1 ]; then
            if apache2ctl configtest 2>/dev/null; then

                # Restart Apache2 web server.
                if [ -x "/etc/init.d/apache2" ]; then
                    if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
                        invoke-rc.d apache2 restart || true
                    else
                        /etc/init.d/apache2 restart || true
                    fi
                fi
            else
                # Something is broken.
                cp_echo "CN: Your Apache2 configuration seem to be broken."
                cp_echo "CN: Please, check the service configuration!"
            fi
        fi

        # Mail root
        cp_mail "$PKG"

        echo
        ;;
    upgrade|failed-upgrade)
        ;;
    *)
        echo "prerm called with unknown argument \$1'" >&2
        exit 0
        ;;
esac

exit 0