#!/bin/sh -

case $2 in

PRE-INSTALL)
    if /usr/sbin/pw groupshow "rpki" 2>/dev/null
    then
        echo "You already have a group \"rpki\", so I will use it."
    elif /usr/sbin/pw groupadd rpki
    then
        echo "Added group \"rpki\"."
    else
        echo "Adding group \"rpki\" failed..."
        echo "Please create it, then try again."
        exit 1
    fi
    if /usr/sbin/pw usershow "rpki" 2>/dev/null
    then
        echo "You already have a user \"rpki\", so I will use it."
    elif /usr/sbin/pw useradd rpki -g rpki -h - -d /nonexistant -s /usr/sbin/nologin -c "RPKI system daemons"
    then
        echo "Added user \"rpki\"."
    else
        echo "Adding user \"rpki\" failed..."
        echo "Please create it, then try again."
        exit 1
    fi
    ;;

POST-INSTALL)
    if ! test -d /var/rcynic
    then
	echo "Creating /var/rcynic"
	/usr/bin/install -o root -g wheel -d /var/rcynic
    fi
    for dir in /var/rcynic/data /var/rcynic/rpki-rtr /var/rcynic/rpki-rtr/sockets
    do
	/usr/bin/install -o rpki -g rpki -d $dir
    done
    if test ! -f /usr/local/etc/rpki.conf
    then
	/bin/cp -p /usr/local/etc/rpki.conf.sample /usr/local/etc/rpki.conf
    fi
    htmldir=/usr/local/www/apache%%APACHE_VERSION%%/data/rcynic
    /usr/bin/install -o rpki -g rpki -d $htmldir
    if test "X`/usr/bin/crontab -l -u rpki 2>/dev/null`" != "X"
    then
	echo "rpki user already has a crontab, leaving it alone"
    else
	echo "Setting up rpki's crontab to run rcynic-cron script"
	/usr/bin/awk -v t=`/usr/bin/hexdump -n 2 -e '"%u\n"' /dev/random` '
            BEGIN {printf "MAILTO=root\n%u * * * *\texec  /usr/local/bin/rcynic-cron\n", t % 60}' |
	/usr/bin/crontab -u rpki -
    fi
    echo "Setting up rpki-rtr listener under inetd"
    if /usr/bin/egrep -q '^rpki-rtr' /etc/services
    then
        echo "You already have a /etc/services entry for rpki-rtr, so I will use it."
    elif echo >>/etc/services "rpki-rtr	43779/tcp  #RFC 6810"
    then
        echo "Added rpki-rtr to /etc/services."
    else
        echo "Adding rpki-rtr to /etc/services failed, please fix this, then try again."
        exit 1
    fi
    if /usr/bin/egrep -q "^rpki-rtr[ 	]+stream[ 	]+tcp6?[ 	].+rtr-origin" /etc/inetd.conf
    then
	echo "You have entries in /etc/inetd.conf for the old rpki-rtr implementation; these will not work anymore, so I will delete them."
	if /usr/bin/egrep -v "^rpki-rtr[ 	]+stream[ 	]+tcp6?[ 	].+rtr-origin" /etc/inetd.conf >/etc/inetd.conf.tmp.$$
	then
	    /bin/mv /etc/inetd.conf.tmp.$$ /etc/inetd.conf
	else
	    /bin/rm -f /etc/inetd.conf.tmp.$$
	    echo "Removing old rpki-rtr entries from /etc/inetd.conf failed, please remove them manually, then try again."
	    exit 1
	fi
    fi
    if /usr/bin/egrep -q "rpki-rtr[ 	]+stream[ 	]+tcp[ 	]" /etc/inetd.conf
    then
        echo "You already have an /etc/inetd.conf entry for rpki-rtr on TCPv4, so I will use it."
    elif echo >>/etc/inetd.conf "rpki-rtr	stream	tcp	nowait	rpki	/usr/local/bin/rpki-rtr	rpki-rtr server /var/rcynic/rpki-rtr"
    then
        echo "Added rpki-rtr for TCPv4 to /etc/inetd.conf."
    else
        echo "Adding rpki-rtr for TCPv4 to /etc/inetd.conf failed, please fix this, then try again."
        exit 1
    fi
    if /usr/bin/egrep -q "rpki-rtr[ 	]+stream[ 	]+tcp6[ 	]" /etc/inetd.conf
    then
        echo "You already have an /etc/inetd.conf entry for rpki-rtr on TCPv6, so I will use it."
    elif echo >>/etc/inetd.conf "rpki-rtr	stream	tcp6	nowait	rpki	/usr/local/bin/rpki-rtr	rpki-rtr server /var/rcynic/rpki-rtr"
    then
        echo "Added rpki-rtr for TCPv6 to /etc/inetd.conf."
    else
        echo "Adding rpki-rtr for TCPv6 to /etc/inetd.conf failed, please fix this, then try again."
        exit 1
    fi
    ;;

*)
    echo "No clue what this script is meant to do when invoked with arguments \"$*\".  Punting."
    exit 1
    ;;

esac