#!/bin/bash

# <niro@magellan-linux.de>

#%rlevels: 7:s 0:k 6:k
#%start: 41
#%stop: 01

#deps
#%needs:
#%before:
#%after:

# $Header: /home/cvsd/alx-cvs/alx-src/alxconfig-ng/init.d/alxsettings,v 1.18 2005-08-28 19:30:53 niro Exp $

# checks first if the client was already configured and if it has an valid serial
# if not it runs the autoconfiguration script
# these settings will be used for client setup
#
# if client was valid it first will check if his settings against the server
# if no changes are at server side they will be kept, if yes the get updated. 
# the server settings has higher priority.

source /etc/sysconfig/rc
source $rc_functions

# mysql settings
source /etc/alxconfig-ng/config.rc

# helper functions
source /usr/lib/alxconfig-ng/functions/mysqlfunctions
source /usr/lib/alxconfig-ng/functions/serial_functions
source /usr/lib/alxconfig-ng/functions/config_modules
source /usr/lib/alxconfig-ng/functions/config_network
source /usr/lib/alxconfig-ng/functions/config_printers
source /usr/lib/alxconfig-ng/functions/config_sessions
source /usr/lib/alxconfig-ng/functions/config_x11
source /usr/lib/alxconfig-ng/functions/config_auth
source /usr/lib/alxconfig-ng/functions/config_ssh_auth

# check if mysql is available
[ -x /usr/bin/mysql ] && MYSQL_ALX=true

# other needed vars
ALX_HW_DETECT=false
ALX_FORCED_RECHECK=false

# unset vars which may kill us
unset ALX_SERIAL ALX_STATE


# setup needed directories
[ ! -d /etc/alxconfig-ng/state ] && install -d /etc/alxconfig-ng/state


update_system_settings(){
	echo -e ${COLMAGENTA}"Checking system setup ..."${COLDEFAULT}

	# get the modules settings
	# ! is the first thing that must be configured !
	config_modules

	# imports network settings from db
	config_networking

	# imports x11 settings from db
	config_x11

	# imports session settings from db
	config_sessions

	# imports printer settings from db
	config_printing

	# imports auth settings from db
	config_auth

	# exchange ssh rsa keys
	HOME=/root config_ssh_auth
}

get_system_serial(){

	local CUR_IP CUR_MAC CUR_MTIME

	# check if serial file exists
	if [ -f /etc/alxconfig-ng/serial ] && [ ! -f /hardware-auto-detection ]
	then
		source /etc/alxconfig-ng/serial

		# start preliminary networking (dhcp)
		preliminary_network start

		# check if mysql server is reachable
		# if not abort this script
		if ! reach_mysql_server
		then
			preliminary_network stop
			exit 1
		fi

		CUR_IP=$(/sbin/ifconfig eth0 | sed -n '/addr:/s/ [^r]*..//gp')
		CUR_MAC=$(/sbin/ifconfig eth0 | grep HWaddr | cut -d ' ' -f11)
		CUR_MTIME=$(date +%s)

		echo -e ${COLOREDSTAR} "Trying to validate my serial ..."

		# nice serial output
		$CURS_UP
		$SET_WCOL
		echo "[ SN: ${ALX_SERIAL} ]"

		if validate_serial "${ALX_SERIAL}" "${ALX_REG_DATE}" "${CUR_MAC}"
		then
			ALX_STATE="ok"
		else
			# abort on non valid serial
			ALX_STATE="invalid serial"
			echo "ALX_STATE=${ALX_STATE}" > /etc/alxconfig-ng/state/state
			show_invalid_serial_msg
			exit 1
		fi

	else
		# run hardware detection
		echo
		if [ -f /hardware-auto-detection ]
		then
			echo -e ${COLMAGENTA}"Hardware autodetection forced by system-administrator"${COLDEFAULT}
		else
			echo -e ${COLMAGENTA}"Preparing system for first boot"${COLDEFAULT}
		fi
		ALX_HW_DETECT=true
		/etc/init.d/hwdetect start

		# set hostname to alx_default_hostname
		# use old hostname if this is a forced re-check
		[ -f /hardware-auto-detection ] && ALX_DEFAULT_HOSTNAME="$(< /etc/hostname)"
		[ -z "${ALX_DEFAULT_HOSTNAME}" ] && ALX_DEFAULT_HOSTNAME=magellan-alx
		HOSTNAME="${ALX_DEFAULT_HOSTNAME}"

		# update the hostname on the system for sure
		echo "${HOSTNAME}" > /etc/hostname

		# start preliminary networking (dhcp)
		preliminary_network start

		# check if mysql server is reachable
		# if not abort this script
		if ! reach_mysql_server
		then
			preliminary_network stop
			exit 1
		fi

		CUR_IP=$(/sbin/ifconfig eth0 | sed -n '/addr:/s/ [^r]*..//gp')
		CUR_MAC=$(/sbin/ifconfig eth0 | grep HWaddr | cut -d ' ' -f11)
		CUR_MTIME=$(date +%s)

		# abort now if this is a forced re-check
		if [ -f /hardware-auto-detection ]
		then
			# but first check the serial
			source /etc/alxconfig-ng/serial

			echo -e ${COLOREDSTAR} "Trying to validate my serial ..."

			# nice serial output
			$CURS_UP
			$SET_WCOL
			echo "[ SN: ${ALX_SERIAL} ]"

			if validate_serial "${ALX_SERIAL}" "${ALX_REG_DATE}" "${CUR_MAC}"
			then
				ALX_STATE="ok"
			else
				# abort on non valid serial
				ALX_STATE="invalid serial"
				echo "ALX_STATE=${ALX_STATE}" > /etc/alxconfig-ng/state/state
				show_invalid_serial_msg
				exit 1
			fi

			# write current state to temp file
			echo "ALX_STATE=${ALX_STATE}" > /etc/alxconfig-ng/state/state
			rm /hardware-auto-detection

			# now export ALX_FORCED_RECHECK=true
			# that the setting will be updated not inserted !
			export ALX_FORCED_RECHECK=true
			return 0
		fi

		echo -e ${COLOREDSTAR} "Trying to get new serial ..."

		# request new serial
		# ALX_REG_DATE="$(date +%F)"

		# we're using the mtime now (better for vaildating the serial)
		mysql_command ${SQL_USER} ${SQL_PASS} ${SQL_HOST} ${SQL_DB} \
			"insert into client_serials(
				mtime,
				mac
			) 
			values(
				'${CUR_MTIME}',
				'${CUR_MAC}'
			);"

		# then validate and retrieve serial

		### warning must be changed that only the LAST ID will be fetched,  ###
		### or you get error if the computer name and date are the same     ###
		### you have more than one serial number then                       ###

		# select highest id only (added max)
		ALX_SERIAL=$(mysql_command ${SQL_USER} ${SQL_PASS} ${SQL_HOST} ${SQL_DB} \
			"select max(serial) from client_serials where mtime='${CUR_MTIME}' and mac='${CUR_MAC}'")

		if [ "${ALX_SERIAL}" != NULL ]
		then
			# nice serial output
			$CURS_UP
			$SET_WCOL
			echo "[ SN: ${ALX_SERIAL} ]"

			# set ALX_STATE to ok so everybody that everything was ok
			ALX_STATE=ok

			echo "ALX_SERIAL=${ALX_SERIAL}" > /etc/alxconfig-ng/serial
			echo "ALX_REG_DATE=${CUR_MTIME}" >> /etc/alxconfig-ng/serial

			evaluate_retval
		else
			# print false (works only if this is the first statement here)
			evaluate_retval

			# set ALX_STATE to error so everybody sees there was an error
			ALX_STATE=error

			# show an error that no new serial was found
			# nice serial output
			$CURS_UP
			$SET_WCOL
			echo -e "[ SN: ${COLRED}None, 0${COLDEFAULT} ]"
		fi
	fi

	# write current state to temp file
	echo "ALX_STATE=${ALX_STATE}" > /etc/alxconfig-ng/state/state
}


check_is_configured() {
	if [ -f /etc/alxconfig-ng/state/configured ]
	then
		export ALX_CONFIGURED=true
	else
		export ALX_CONFIGURED=false
	fi
}


# imports current settings to the database resolved by the hardware detection
import_settings_to_db() {
	# note: networking is always 'dhcp' if hw was autodetected
	# note: default_domain/hostname is set in config.rc

	# to be safe, we do some sanity checks
	[ -z "${ALX_DEFAULT_DOMAIN}" ] && ALX_DEFAULT_DOMAIN=localdomain
	[ -z "${ALX_DEFAULT_HOSTNAME}" ] && ALX_DEFAULT_HOSTNAME=magellan-alx

	# vars used by hwdetect
	local NETCARD_FULLNAME NETCARD_DRIVER MOUSE_FULLNAME MOUSE_DEVICE SOUND_FULLNAME
	local SOUND_DRIVER XSERVER XMODULE XDESC FLOPPY_FULLNAME FLOPPY_DEVICE FLOPPY_DRIVER
	local MOUSETYPE XMOUSETYPE FULLNAME DEVICE

	# get setting from hwdetect
	source /etc/sysconfig/hwsetup/knoppix
	source /etc/sysconfig/hwsetup/mouse

	echo
	echo -e ${COLMAGENTA}"Importing detected settings to database"${COLDEFAULT}

	# network
	echo -e "      Network settings ..."
	mysql_command ${SQL_USER} ${SQL_PASS} ${SQL_HOST} ${SQL_DB} \
		"insert into cfg_network(
			hostname,
			serial,
			module,
			domain,
			networking
		)
		values(
			'${ALX_DEFAULT_HOSTNAME}',
			'${ALX_SERIAL}',
			'${NETCARD_DRIVER}',
			'${ALX_DEFAULT_DOMAIN}',
			'dhcp'
		);"
	evaluate_retval

	# xserver
	echo -e "      Graphic settings ..."
	# xserver general
	( mysql_command ${SQL_USER} ${SQL_PASS} ${SQL_HOST} ${SQL_DB} \
		"insert into cfg_graphic(
			serial,
			module,
			resolution,
			depth,
			monitorid
		)
		values(
			'${ALX_SERIAL}',
			'${XMODULE}',
			'1024x768',
			'16',
			'0'
		);"; )
	evaluate_retval

	# input
	echo -e "      Input settings ..."
	mysql_command ${SQL_USER} ${SQL_PASS} ${SQL_HOST} ${SQL_DB} \
			"insert into cfg_input(serial,mouse) values('${ALX_SERIAL}','${XMOUSETYPE}');"
	evaluate_retval

	# auth
	echo -e "      Authentifcation settings ..."
	mysql_command ${SQL_USER} ${SQL_PASS} ${SQL_HOST} ${SQL_DB} \
		"insert into client_auth(
			serial,
			username,
			shell,
			vnc,
			samba,
			station
		)
		values(
			'${ALX_SERIAL}',
			'${ALX_UNPRIV_USER}',
			'',
			'',
			'',
			''
		);"
	evaluate_retval

	# exchange ssh rsa keys - the first boot needs this !
	# or no reboot will work via the webadmin
	echo -e "      SSH authentifcation settings ..."
	HOME=/root config_ssh_auth
	evaluate_retval

	# input
	echo -e "      Autostart settings ..."
	mysql_command ${SQL_USER} ${SQL_PASS} ${SQL_HOST} ${SQL_DB} \
			"insert into cfg_autostart(serial,session) values('${ALX_SERIAL}','');"
	evaluate_retval
}

# imports current settings to the database resolved by the hardware detection
update_settings_in_db() {
	# note: networking is always 'dhcp' if hw was autodetected
	# note: default_domain/hostname is set in config.rc or exported
	# note: we updating only hardware settings here !

	# to be safe, we do some sanity checks
	[ -z "${ALX_DEFAULT_DOMAIN}" ] && ALX_DEFAULT_DOMAIN=localdomain
	[ -z "${ALX_DEFAULT_HOSTNAME}" ] && ALX_DEFAULT_HOSTNAME=magellan-alx

	# vars used by hwdetect
	local NETCARD_FULLNAME NETCARD_DRIVER MOUSE_FULLNAME MOUSE_DEVICE SOUND_FULLNAME
	local SOUND_DRIVER XSERVER XMODULE XDESC FLOPPY_FULLNAME FLOPPY_DEVICE FLOPPY_DRIVER
	local MOUSETYPE XMOUSETYPE FULLNAME DEVICE

	# get setting from hwdetect
	source /etc/sysconfig/hwsetup/knoppix
	source /etc/sysconfig/hwsetup/mouse

	echo
	echo -e ${COLMAGENTA}"Updating detected settings in database"${COLDEFAULT}

	# network
	echo -e "      Network settings ..."

	mysql_command ${SQL_USER} ${SQL_PASS} ${SQL_HOST} ${SQL_DB} \
		"update cfg_network set
			hostname='${ALX_DEFAULT_HOSTNAME}',
			module='${NETCARD_DRIVER}',
			domain='${ALX_DEFAULT_DOMAIN}',
			networking='dhcp'
		where serial=${ALX_SERIAL};"
	evaluate_retval

	# xserver
	echo -e "      Graphic settings ..."
	# xserver general
	mysql_command ${SQL_USER} ${SQL_PASS} ${SQL_HOST} ${SQL_DB} \
		"update cfg_graphic set
			module='${XMODULE}',
			resolution='1024x768',
			depth='16',
			monitorid='0'
		where serial=${ALX_SERIAL};"
	evaluate_retval

	# input
	echo -e "      Input settings ..."
	mysql_command ${SQL_USER} ${SQL_PASS} ${SQL_HOST} ${SQL_DB} \
			"update cfg_input set
				mouse='${XMOUSETYPE}'
			where serial=${ALX_SERIAL};"
	evaluate_retval
}

# imports current settings to the local system resolved by the hardware detection
# we only need the network settings 
import_settings_local(){
	# note: networking is always 'dhcp' if hw was autodetected
	# note: default_domain/hostname is set in config.rc

	# to be safe, we do some sanity checks
	[ -z "${ALX_DEFAULT_DOMAIN}" ] && ALX_DEFAULT_DOMAIN=localdomain
	[ -z "${ALX_DEFAULT_HOSTNAME}" ] && ALX_DEFAULT_HOSTNAME=magellan-alx

	# vars used by hwdetect
	local NETCARD_FULLNAME NETCARD_DRIVER MOUSE_FULLNAME MOUSE_DEVICE SOUND_FULLNAME
	local SOUND_DRIVER XSERVER XMODULE XDESC FLOPPY_FULLNAME FLOPPY_DEVICE FLOPPY_DRIVER
	local MOUSETYPE XMOUSETYPE FULLNAME DEVICE

	# get setting from hwdetect
	source /etc/sysconfig/hwsetup/knoppix

	echo
	echo -e ${COLMAGENTA}"Importing detected settings to local system"${COLDEFAULT}

	[ ! -d ${SETTINGSPATH} ] && install -d ${SETTINGSPATH}
	echo "${NETCARD_DRIVER}" > ${SETTINGSPATH}/modules
	evaluate_retval

	# set system state to 'already configured'
	touch /etc/alxconfig-ng/state/configured

	# create a fresh fluxbox directory
	[ -d ${ALX_UNPRIV_HOME}/.fluxbox ] && rm -rf ${ALX_UNPRIV_HOME}/.fluxbox
	install -d ${ALX_UNPRIV_HOME}/.fluxbox

	# now generate fluxbox config files

	# fluxbox main config
	cat ${ALX_SKELETONS}/fluxbox/init \
		> ${ALX_UNPRIV_HOME}/.fluxbox/init

	# fluxbox menu header
	cat ${ALX_SKELETONS}/fluxbox/menu.header \
		> ${ALX_UNPRIV_HOME}/.fluxbox/menu

	# now fix it with proper messages :P
	local ver="$(< /etc/mageversion)"
	sed -i "s:@CHANGEME@:alx-${ver}  #${ALX_SERIAL}:g" \
		${ALX_UNPRIV_HOME}/.fluxbox/menu

	# add a newline (maybe there is no crlf in the header)
	echo >> ${ALX_UNPRIV_HOME}/.fluxbox/menu

	# fluxbox menu footer
	cat ${ALX_SKELETONS}/fluxbox/menu.footer \
		>> ${ALX_UNPRIV_HOME}/.fluxbox/menu

	# add a newline (maybe there is no crlf in the footer)
	echo >> ${ALX_UNPRIV_HOME}/.fluxbox/menu

	# set correct permissions
	chown ${ALX_UNPRIV_USER}:${ALX_UNPRIV_GROUP} ${ALX_UNPRIV_HOME}
	chown ${ALX_UNPRIV_USER}:${ALX_UNPRIV_GROUP} ${ALX_UNPRIV_HOME}/.fluxbox
	chmod 0755 ${ALX_UNPRIV_HOME}/.fluxbox

	# default passwords are bad
	#usermod -p $(perl -e "printf(crypt('foobar','AD'))") root
	#usermod -p $(perl -e "printf(crypt('foobar','AD'))") ${ALX_UNPRIV_USER}
	#smbpasswd -a root foobar
}

# start|stop
preliminary_network(){
	local module

	if [ -f /etc/alxconfig-ng/state/configured ]
	then
		# get module name
		module=$(cat ${SETTINGSPATH}/modules)
		modprobe ${module}
	else
		# vars used by hwdetect
		local NETCARD_FULLNAME NETCARD_DRIVER MOUSE_FULLNAME MOUSE_DEVICE SOUND_FULLNAME
		local SOUND_DRIVER XSERVER XMODULE XDESC FLOPPY_FULLNAME FLOPPY_DEVICE FLOPPY_DRIVER

		# get setting from hwdetect
		source /etc/sysconfig/hwsetup/knoppix
		modprobe ${NETCARD_DRIVER}
	fi

	case $1 in
		start)
			# keeping like always safe:
			# no network should be startet here,
			# so we can delete all pid files if one exists
			if ps -A|grep dhcpcd > /dev/null
			then
				echo -e ${COLMAGENTA}"Forcing network down"${COLDEFAULT}
				dhcpcd -k
				sleep 1
			else
				rm -f /var/run/dhcpcd-eth?.pid
			fi

			echo -e ${COLMAGENTA}"Starting preliminary network ... "${COLDEFAULT}
			# -t 10 timeout of 10 secs
			dhcpcd -t 10 &> /dev/null

			# aka_fix ########################################
			#ifconfig eth0 128.20.222.222 netmask 255.255.0.0 up
			#route del default gw 128.20.50.13 &> /dev/null
			#route add default gw 128.20.50.21 &> /dev/null
			#echo "nameserver 128.20.50.21" > /etc/resolv.conf
			##################################################

			evaluate_retval
			;;

		stop)
			echo -e ${COLMAGENTA}"Stopping preliminary network ... "${COLDEFAULT}
			ifconfig eth0 down
			if ps -A|grep dhcpcd > /dev/null
			then
				dhcpcd -z  &> /dev/null
			fi
			evaluate_retval
			;;

		*)
			echo "Usage: preliminary_network {start|stop}"
			;;
	esac
}

case $1 in
	start)
		# retrieve or validate current serial
		get_system_serial
		if [[ ${ALX_HW_DETECT} = true ]]
		then
			if [[ ${ALX_FORCED_RECHECK} = true ]]
			then
				update_settings_in_db
			else
				import_settings_to_db
			fi
			import_settings_local

			# here we should also exchange the ssh keys
			# or the system cannot be rebooted after
			# the first start via the alx-webadmin
			config_ssh_auth
		fi

		# now setup system configuration
		# alx_setup_or_whatever_it_will_be_called()
		[ "${ALX_HW_DETECT}" == "false" ] && update_system_settings

		# stop at last the preliminary networking (dhcp)
		preliminary_network stop
		;;

	stop)
		# unset_alx_connected #--> now in alxsetstate-rc6
		# ! important !: del systemstate
		[ -f /etc/alxconfig-ng/state/state ] && rm /etc/alxconfig-ng/state/state
		sleep 0.1
		;;
	*)
		echo "Usage: $0 {start|stop} ..."
		;;
esac