mxservicectl

#!/bin/bash

CMD_IP="/sbin/ip"
CMD_MXS2MXSRV="/usr/sbin/mxstartup2mxconfig"

RUNDIR="/run/mariux"

# expands *-pattern in pathnames to null if no matching files are found..
shopt -s nullglob

# exit on any error
set -e

function mxsrv_start_one() {
   local cfg=$1
   local -i i mip mfwd

   echo "starting ${cfg} .."

   . ${cfg}

   test "$MX_SRV_USER" = "-" && MX_SRV_USER="root"

   case "${MX_SRV_SCRIPT}" in
       *.service)
           systemctl start "${MX_SRV_SCRIPT}" || true
           ;;
       *)
           su - ${MX_SRV_USER} -c "${MX_SRV_SCRIPT} start" &
           ;;
   esac

   mv ${cfg}{,.r}

   unset -v MX_SRV_USER MX_SRV_SCRIPT
}

function mxsrv_stop_one() {
   local cfg=$1
   local -i i mip mfwd

   echo "stopping ${cfg} .."

   . ${cfg}

   test "$MX_SRV_USER" = "-" && MX_SRV_USER="root"

   case "${MX_SRV_SCRIPT}" in
       *.service)
           systemctl stop "${MX_SRV_SCRIPT}" || true
           ;;
       *)
           su - ${MX_SRV_USER} -c "${MX_SRV_SCRIPT} stop" &
           ;;
   esac

   rm ${cfg}

   unset -v MX_SRV_USER MX_SRV_SCRIPT
}

function mxsrv_start() {
    local cfg
    local pattern=$1

    : ${pattern:=*}

    for cfg in ${RUNDIR}/mxservice.${pattern}.cfg ; do
        if [ -e ${cfg}.r ] ; then
            echo >&2 "skipping $cfg: already running.."
            continue
        fi

        if [ ! -r ${cfg} ] ; then
            echo >&2 "skipping $cfg: can't read file"
            continue
        fi

        if [ ! -O ${cfg} ] ; then
            echo >&2 "skipping $cfg: possible hack attempt?"
            continue
        fi

        mxsrv_start_one ${cfg}

    done
}

function mxsrv_stop() {
    local cfg
    local pattern=$1

    : ${pattern:=*}

    for cfg in ${RUNDIR}/mxservice.${pattern}.cfg.r ; do
        if [ ! -r ${cfg} ] ; then
            echo >&2 "skipping $cfg: can't read file"
            continue
        fi

        if [ ! -O ${cfg} ] ; then
            echo >&2 "skipping $cfg: possible hack attempt?"
            continue
        fi

        mxsrv_stop_one ${cfg}

    done
}


function create_run_dir_if_not_exists() {
    if [ ! -d ${RUNDIR} ] ; then
        mkdir -m 0700 ${RUNDIR}
    fi

    if [ ! -O ${RUNDIR} ] ; then
        echo >&2 "${RUNDIR}: wrong owner: possible hack attempt? exiting.."
        exit 1
    fi
}

function create_mxservice() {
    ${CMD_MXS2MXSRV} ${RUNDIR} >/dev/null
}


##############################################################################

create_run_dir_if_not_exists

case "${1}" in
    start)
        create_mxservice
        mxsrv_start $2
        ;;
    stop)
        mxsrv_stop $2
        ;;
    restart)
        mxsrv_stop $2
        create_mxservice
        mxsrv_start $2
        ;;
    *)
        echo >&2 "$0 start|stop"
        ;;
esac