#!/bin/sh
#
# 2014 Steven Armstrong (steven-cdist at armstrong.cc)
# 2019 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#

if [ -f "$__object/parameter/file" ]; then
	cat "$__object/parameter/file"
else
	if [ -s "$__object/parameter/owner" ]
	then
		owner=$(cat "$__object/parameter/owner")
	else
		owner="$__object_id"
	fi

	if command -v getent >/dev/null
	then
		owner_line=$(getent passwd "$owner")
	elif [ -f /etc/passwd ]
	then
		case $owner
		in
			[0-9][0-9]*)
				owner_line=$(awk -F: "\$3 == \"${owner}\" { print }" /etc/passwd)
				;;
			*)
				owner_line=$(awk -F: "\$1 == \"${owner}\" { print }" /etc/passwd)
				;;
		esac
	fi

	if [ "$owner_line" ]
	then
		home=$(echo "$owner_line" | cut -d':' -f6)
	fi

	if [ ! -d "$home" ]
	then
		# Don't know how to determine user's home directory, fall back to ~
		home="~$owner"
		command -v realpath >/dev/null && home=$(realpath "$home")
	fi

	[ -d "$home" ] && echo "$home/.ssh/authorized_keys"
fi