# Author: Jan Vcelak <jvcelak@redhat.com>

SLAPD_USER=
SLAPD_CONFIG_FILE=
SLAPD_CONFIG_DIR=
SLAPD_CONFIG_CUSTOM=
SLAPD_GLOBAL_OPTIONS=
SLAPD_SYSCONFIG_FILE=

function default_config()
{
	SLAPD_USER=ldap
	SLAPD_CONFIG_FILE=/etc/openldap/slapd.conf
	SLAPD_CONFIG_DIR=/etc/openldap/slapd.d
	SLAPD_CONFIG_CUSTOM=
	SLAPD_GLOBAL_OPTIONS=
	SLAPD_SYSCONFIG_FILE=/etc/sysconfig/slapd
}

function parse_config_options()
{
	user=
	config_file=
	config_dir=
	while getopts :u:f:F: opt; do
		case "$opt" in
		u)
			user="$OPTARG"
			;;
		f)
			config_file="$OPTARG"
			;;
		F)
			config_dir="$OPTARG"
			;;
		esac
	done

	if [ -n "$user" ]; then
		SLAPD_USER="$user"
	fi

	if [ -n "$config_dir" ]; then
		SLAPD_CONFIG_DIR="$config_dir"
		SLAPD_CONFIG_FILE=
		SLAPD_CONFIG_CUSTOM=1
		SLAPD_GLOBAL_OPTIONS="-F '$config_dir'"
	elif [ -n "$config_file" ]; then
		SLAPD_CONFIG_DIR=
		SLAPD_CONFIG_FILE="$config_file"
		SLAPD_CONFIG_CUSTOM=1
		SLAPD_GLOBAL_OPTIONS="-f '$config_file'"
	fi
}

function uses_new_config()
{
	[ -n "$SLAPD_CONFIG_DIR" ]
	return $?
}

function run_as_ldap()
{
	/sbin/runuser --shell /bin/sh --session-command "$1" "$SLAPD_USER"
	return $?
}

function ldif_unbreak()
{
	sed ':a;N;s/\n //;ta;P;D'
}

function ldif_value()
{
	sed 's/^[^:]*: //'
}

function databases_new()
{
	slapcat $SLAPD_GLOBAL_OPTIONS -c \
	-H 'ldap:///cn=config???(|(objectClass=olcBdbConfig)(objectClass=olcHdbConfig))' 2>/dev/null | \
		ldif_unbreak | \
		grep '^olcDbDirectory: ' | \
		ldif_value
}

function databases_old()
{
	awk	'begin { database="" }
		$1 == "database" { database=$2 }
		$1 == "directory" { if (database == "bdb" || database == "hdb") print $2}' \
		"$SLAPD_CONFIG_FILE"
}

function certificates_new()
{
	slapcat $SLAPD_GLOBAL_OPTIONS -c -H 'ldap:///cn=config???(cn=config)' 2>/dev/null | \
		ldif_unbreak | \
		grep '^olcTLS\(CACertificateFile\|CACertificatePath\|CertificateFile\|CertificateKeyFile\): ' | \
		ldif_value
}

function certificates_old()
{
	awk '$1 ~ "^TLS(CACertificate(File|Path)|CertificateFile|CertificateKeyFile)$" { print $2 } ' \
		"$SLAPD_CONFIG_FILE"
}

function certificates()
{
	uses_new_config && certificates_new || certificates_old
}

function databases()
{
	uses_new_config && databases_new || databases_old
}


function error()
{
	format="$1\n"; shift
	printf "$format" $@ >&2
}

function load_sysconfig()
{
	[ -r "$SLAPD_SYSCONFIG_FILE" ] || return

	. "$SLAPD_SYSCONFIG_FILE"
	[ -n "$SLAPD_OPTIONS" ] && parse_config_options $SLAPD_OPTIONS
}

default_config
