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#!/bin/sh

# PROVIDE: milter-batv
# REQUIRE: DAEMON
# BEFORE: mail
# KEYWORD: shutdown

# Define these milterbatv_* variables in one of these files:
#	/etc/rc.conf
#	/etc/rc.conf.local
#	/etc/rc.conf.d/milterbatv
#
# milterbatv_enable (bool):   Set to "NO" by default.
#                             Set it to "YES" to enable batv-milter
# milterbatv_uid (str):       Set username to run milter.
# milterbatv_profiles (list): Set to "" by default.
#                             Define your profiles here.
# milterbatv_cfgfile (str):   Configuration file.
#
# milterbatv_${profile}_* :   Variables per profile.
#                             Sockets must be different from each other.
#
#  all parameters below can be set in batv-filter.conf(5).
# milterbatv_socket (str):    Path to the milter socket.
# milterbatv_domain (str):    Domainpart of From: in mails to sign.
# milterbatv_allowlist (str):       Path to the allow list file.
# milterbatv_key (str):       Path to the private key file to sign with.
# milterbatv_flags (str):     Flags passed to start command.

. /etc/rc.subr

name="milterbatv"
rcvar=milterbatv_enable

start_precmd="batv_prepcmd"
stop_postcmd="batv_postcmd"
command="%%PREFIX%%/bin/batv-filter"
_piddir="/var/run/milterbatv"
pidfile="${_piddir}/pid"

load_rc_config $name

#
# DO NOT CHANGE THESE DEFAULT VALUES HERE
#
: ${milterbatv_enable="NO"}
: ${milterbatv_uid="mailnull"}
: ${milterbatv_cfgfile="%%PREFIX%%/etc/mail/batv-filter.conf"}

# Options other than above can be set with $milterbatv_flags.
# see batv-milter documentation for detail.

if [ -n "$2" ]; then
    profile="$2"
    if [ "x${milterbatv_profiles}" != "x" ]; then
	pidfile="${_piddir}/${profile}.pid"
	eval milterbatv_enable="\${milterbatv_${profile}_enable:-${milterbatv_enable}}"
	eval milterbatv_socket="\${milterbatv_${profile}_socket:-}"
	if [ "x${milterbatv_socket}" = "x" ];then
	    echo "You must define a socket (milterbatv_${profile}_socket)"
	    exit 1
	fi
	eval milterbatv_cfgfile="\${milterbatv_${profile}_cfgfile:-${milterbatv_cfgfile}}"
	eval milterbatv_domain="\${milterbatv_${profile}_domain:-${milterbatv_domain}}"
	eval milterbatv_allowlist="\${milterbatv_${profile}_allowlist:-${milterbatv_allowlist}}"
	eval milterbatv_key="\${milterbatv_${profile}_key:-${milterbatv_key}}"
	eval milterbatv_flags="\${milterbatv_${profile}_flags:-${milterbatv_flags}}"
	if [ -f "${milterbatv_cfgfile}" ];then
	    milterbatv_cfgfile="-x ${milterbatv_cfgfile}"
	else
	    milterbatv_cfgfile=""
	fi
	if [ "x${milterbatv_socket}" != "x" ];then
	    _socket_prefix="-p"
	fi
	if [ "x${milterbatv_uid}" != "x" ];then
	    _uid_prefix="-u"
	fi
	if [ "x${milterbatv_domain}" != "x" ];then
	    milterbatv_domain="-d ${milterbatv_domain}"
	fi
	if [ "x${milterbatv_allowlist}" != "x" ];then
	    milterbatv_allowlist="-a ${milterbatv_allowlist}"
	fi
	if [ "x${milterbatv_key}" != "x" ];then
	    milterbatv_key="-k ${milterbatv_key}"
	fi
	command_args="-l ${_socket_prefix} ${milterbatv_socket} ${_uid_prefix} ${milterbatv_uid} -P ${pidfile} ${milterbatv_cfgfile} ${milterbatv_domain} ${milterbatv_allowlist} ${milterbatv_key}"
    else
	echo "$0: extra argument ignored"
    fi
else
    if [ "x${milterbatv_profiles}" != "x" -a "x$1" != "x" ]; then
	if [ "x$1" != "xrestart" ]; then
	    for profile in ${milterbatv_profiles}; do
		echo "===> milterbatv profile: ${profile}"
		%%RC_SCRIPT%% $1 ${profile}
		retcode="$?"
		if [ "0${retcode}" -ne 0 ]; then
		    failed="${profile} (${retcode}) ${failed:-}"
		else
		    success="${profile} ${success:-}"
		fi
	    done
	    exit 0
	else
	    restart_precmd=""
	fi
    else
	if [ -f "${milterbatv_cfgfile}" ];then
	    milterbatv_cfgfile="-x ${milterbatv_cfgfile}"
	else
	    milterbatv_cfgfile=""
	fi
	if [ "x${milterbatv_socket}" != "x" ];then
	    _socket_prefix="-p"
	fi
	if [ "x${milterbatv_uid}" != "x" ];then
	    _uid_prefix="-u"
	fi
	if [ "x${milterbatv_domain}" != "x" ];then
	    milterbatv_domain="-d ${milterbatv_domain}"
	fi
	if [ "x${milterbatv_allowlist}" != "x" ];then
	    milterbatv_allowlist="-a ${milterbatv_allowlist}"
	fi
	if [ "x${milterbatv_key}" != "x" ];then
	    milterbatv_key="-k ${milterbatv_key}"
	fi
	command_args="-l ${_socket_prefix} ${milterbatv_socket} ${_uid_prefix} ${milterbatv_uid} -P ${pidfile} ${milterbatv_cfgfile} ${milterbatv_domain} ${milterbatv_allowlist} ${milterbatv_key}"
    fi
fi

batv_prepcmd ()
{
    if [ -S ${milterbatv_socket##local:} ] ; then
        rm -f ${milterbatv_socket##local:}
    elif [ -S ${milterbatv_socket##unix:} ] ; then
        rm -f ${milterbatv_socket##unix:}
    fi
    if [ ! -d ${_piddir} ] ; then
	mkdir -p ${_piddir}
    fi
    if [ -n "${milterbatv_uid}" ] ; then
	chown ${milterbatv_uid} ${_piddir}
    fi
}

batv_postcmd()
{
    if [ -S ${milterbatv_socket##local:} ] ; then
        rm -f ${milterbatv_socket##local:}
    elif [ -S ${milterbatv_socket##unix:} ] ; then
        rm -f ${milterbatv_socket##unix:}
    fi
    # just if the directory is empty
    rmdir ${_piddir} > /dev/null 2>&1
}

run_rc_command "$1"