#!/bin/sh
# $Revision: 307 $
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#
# (c) Tim Brown, 2012
# <mailto:timb@nth-dimension.org.uk>
# <http://www.nth-dimension.org.uk/> / <http://www.machine.org.uk/>
#
# 

. lib/misc/stdio
. lib/misc/sudo

sudo_init () {
	stdio_message_log "sudo" "Starting at: `date`"
}

sudo_main () {
	if [ "`sudo_sudoers_check`" -eq 1 ]
	then
		if [ -n "`sudo_sudoers_list`" ]
		then
			stdio_message_warn "sudo" "/etc/sudoers is readable and configured"

			# TODO: if privilegeduser is a group (e.g. %admin), notify the user accordingly
			sudo_sudoers_list | while read privilegeduser passwd filepath
			do
				asuser="`printf -- \"${passwd}\" | cut -f2 -d\"=\" | tr -d \"(\" | tr -d \")\"`"
				# for cases where the asuser is ALL:ALL (e.g. in Ubuntu there is always the following sudoers entry):
				#	root    ALL=(ALL:ALL) ALL
				if [ "${asuser}" = "ALL:ALL" ]
				then
					asuser="any user"
				else
					asuser="user ${asuser}"
				fi
				# for cases where the user can run any command. For example:
				#	foobar ALL=NOPASSWD: ALL
				if [ "${filepath}" = "ALL" ]
				then
					filepath="any command"
				fi
				if [ -n "`printf -- \"${passwd}\" | egrep -- \"NOPASSWD\"`" ]
				then
					stdio_message_warn "sudo" "${privilegeduser} can run ${filepath} without providing a password"
				else
					stdio_message_log "sudo" "${privilegeduser} can run ${filepath} as ${asuser}"
				fi
			done
		else
			stdio_message_log "sudo" "/etc/sudoers is readable, but not configured"
		fi
	fi
}

sudo_fini () {
	stdio_message_log "sudo" "Ending at: `date`"
}