#! /bin/sh
# auto-configure nav, anders@FreeBSD.org 2004-11-14
#
# Variabels that needs to be set: LOCALBASE

navuser=navcron
navgroup=nav

if [ -z "$LOCALBASE" ]
then
	echo "LOCALBASE variable not set. Aborting."
	exit 1
fi
if [ -z "$PORTSDIR" ]
then
	echo "PORTSDIR variable not set. Aborting."
	exit 1
fi

if [ -z "`grep \"^if \[ -f $LOCALBASE/nav/bin/navenv\.sh \]; then \. $LOCALBASE/nav/bin/navenv\.sh; fi\" /etc/profile`" ]
then
	echo "Add sourcing of environment in /etc/profile."
	echo "if [ -f $LOCALBASE/nav/bin/navenv.sh ]; then . $LOCALBASE/nav/bin/navenv.sh; fi" >>/etc/profile
fi

if [ ! -f $LOCALBASE/etc/cricket-conf.pl ]
then
	echo "Default cricket config missing, copying default one to"
	echo "$LOCALBASE/etc/cricket-conf.pl."
	install -g $navgroup -o $navuser -m 0755 $LOCALBASE/etc/cricket-conf.pl.dist $LOCALBASE/etc/cricket-conf.pl
fi

setdbcvar() {
	# $1: variable $2: password $3: config
	sed "s/^$1=.*/$1=$2/" $3 >$3.tmp
	cp $3.tmp $3
	rm -f $3.tmp
}

ifyes() {
	read line
	if [ "`echo $line | cut -c1-1 | tr 'A-Z' 'a-z'`" != "y" ]
	then
		return 1
	fi
}

apgck() {
	if [ ! -x $LOCALBASE/bin/apg ]
	then
		printf "Password-generation program ports/security/apg is missing. Do you want me to\n"
		printf "try to install it for you? (y/n) "
		if (ifyes)
		then
			cd $PORTSDIR/security/apg
			(make clean && make install && make clean) >/dev/null 2>&1
		fi
		if [ ! -x $LOCALBASE/bin/apg ]
		then
			echo "Please install ports/security/apg. Need it to generate random passwords"
			echo "for PostgreSQL. Then re-run this script/make auto-config."
			exit 1
		fi
	fi
}

if (id pgsql >/dev/null 2>&1)
then
	printf "Do you want to auto-configure PostgreSQL? (y/n) "
	if (ifyes)
	then
		apgck

		pdir=$LOCALBASE/pgsql/data
		pconf=$pdir/postgresql.conf
		phbaconf=$pdir/pg_hba.conf
		pgsqlp=`$LOCALBASE/bin/apg -M NCL -n 1`
		navreadp=`$LOCALBASE/bin/apg -M NCL -n 1`
		navwritep=`$LOCALBASE/bin/apg -M NCL -n 1`
		navdbconf=$LOCALBASE/nav/etc/db.conf
		navdbbkconf=$LOCALBASE/nav/etc/pg_backup.conf

		if [ ! -d $pdir ]
		then
			echo "Running PostgreSQL initdb."
			su -l pgsql -c "$LOCALBASE/bin/initdb"
		fi
		if [ -f $pconf ]
		then
			echo "Setting up TCP/IP socket for PostgreSQL."
			sed "s/.*tcpip_socket.*/tcpip_socket = true/" \
				$pconf >$pconf.tmp
			cp $pconf.tmp $pconf
			rm -f $pconf.tmp
		fi
		printf "To continue, we need to start the database engine. Proceed? (y/n) "
		if (ifyes)
		then
			echo "Starting PostgreSQL database."
			su -l pgsql -c "$LOCALBASE/bin/pg_ctl start -s -w"
			echo "Waiting 5 seconds."
			sleep 5
			echo "Creating users & databases, importing data."
			usedb=template1
#			firstdb=`su -l pgsql -c "$LOCALBASE/bin/psql -l -t -A" | head -1 | cut -d'|' -f1`
			PGUSER=pgsql
			export PGUSER
			$LOCALBASE/bin/createdb --encoding UTF-8 manage
			$LOCALBASE/bin/createdb --encoding UTF-8 navprofiles
			$LOCALBASE/bin/createdb --encoding UTF-8 logger
			$LOCALBASE/bin/createlang plpgsql manage
			$LOCALBASE/bin/createlang plpgsql navprofiles
			$LOCALBASE/bin/createlang plpgsql logger
			$LOCALBASE/bin/createuser -A -D navread
			$LOCALBASE/bin/createuser -A -D navwrite
			$LOCALBASE/bin/psql -f $LOCALBASE/nav/doc/sql/manage.sql manage
			$LOCALBASE/bin/psql -f $LOCALBASE/nav/doc/sql/navprofiles.sql navprofiles
			$LOCALBASE/bin/psql -f $LOCALBASE/nav/doc/sql/logger.sql logger
			$LOCALBASE/bin/psql -f $LOCALBASE/nav/doc/sql/snmpoid.sql manage
			echo "Setting passwords."
			echo "alter user pgsql with password '$pgsqlp';" | $LOCALBASE/bin/psql $usedb
			echo "alter user navread with password '$navreadp';" | $LOCALBASE/bin/psql $usedb
			echo "alter user navwrite with password '$navwritep';" | $LOCALBASE/bin/psql $usedb
			echo
			echo "Password for database user navread: $navreadp"
			echo "Password for database user navwrite: $navwritep"
			echo "Password for database user pgsql: $pgsqlp"
			echo "Make a mental note of it!"
			echo
			echo "Setting database passwords in NAV db.conf and pg_backup.conf."
			setdbcvar userpw_navread $navreadp $navdbconf
			setdbcvar userpw_navwrite $navwritep $navdbconf
			setdbcvar username pgsql $navdbbkconf
			setdbcvar password $pgsqlp $navdbbkconf
			echo "Configure database to only allow authentcated connections."
			cat $phbaconf | sed -E "s/(^(local|host).*)trust/\1md5/" >$phbaconf.tmp
			cp $phbaconf.tmp $phbaconf
			rm -f $phbaconf.tmp
			echo "Reloading database."
			su -l pgsql -c "$LOCALBASE/bin/pg_ctl reload"
		else
			echo "Fine, you have an empty database set up. Now create users, set passwords,"
			echo "and import default data. Do not forget to configure pg_hba.conf."
		fi
	else
		echo "Fine, see if I care."
	fi
else
	echo
	echo "Consider installing a matching ports/databases/postgresqlXX-serverfor your"
	echo "PostgreSQL client installation if you want a local NAV database. This target"
	echo "(auto-config) can set up the database for you then, just run make auto-config"
	echo "again."
fi