#!/bin/sh
#
# Test for registry upgrades.
#
# Copyright (C) 2011 Björn Baumbach <bb@sernet.de>

if [ $# -lt 2 ]; then
	echo "Usage: test_registry_upgrade.sh NET DBWRAP_TOOL"
	exit 1
fi

SCRIPT_DIR=$(dirname $0)
BASE_DIR="${SCRIPT_DIR}/../../.."

NET="$1"
DBWRAP_TOOL="$2 --persistent"
DATADIR="${BASE_DIR}/testdata/samba3"
WORKSPACE="${SELFTEST_TMPDIR}/registry_upgrade"
CONFIG_FILE="${WORKSPACE}/smb.conf"
CONFIGURATION="--configfile=${CONFIG_FILE}"

NETCMD="$NET $CONFIGURATION"

incdir="${BASE_DIR}/testprogs/blackbox"
. $incdir/subunit.sh

failed=0

cd $SELFTEST_TMPDIR || exit 1

REGPATH="HKLM\Software\Samba"

LOGDIR_PREFIX="registry_upgrade"

registry_check()
(
	CHECKNO="$1"
	CHECKDIFF="$2"
	REGVER=""
	ALLOWEDERR="INFO: version =|Check database:|overwrite registry format version 0 with 1|no INFO/version found"

	test "x$CHECKNO" = "x0" && {
		REGVER="--reg-version=1"
	}

	echo "Registry check $CHECKNO" | tee -a $LOG
	CHECK="$($NETCMD registry check $REGVER 2>&1)"
	RC=$?

	ERRORSTR="$(echo "$CHECK" | grep -vE $ALLOWEDERR)"
	test "x$RC" = "x0" || {
		echo "upgrade check $CHECKNO failed:" | tee -a $LOG
		return 1
	}

	test "x$ERRORSTR" = "x" || {
		echo "upgrade check $CHECKNO failed:" | tee -a $LOG
		echo "reason: $CHECK" | tee -a $LOG
		return 1
	}

	test "x$CHECKDIFF" = "xcheckdiff" && {
		$NETCMD registry export 'HKLM' $WORKSPACE/export_${CHECKNO}.reg >>$LOG
		test "x$?" = "x0" || {
			echo "Error: 'net registry export HKLM' failed" | tee -a $LOG
		}

		diff -q $WORKSPACE/export_0.reg $WORKSPACE/export_${CHECKNO}.reg >>$LOG
		test "x$?" = "x0" || {
			echo "Error: $WORKSPACE/export_0.reg differs from $WORKSPACE/export_${CHECKNO}.reg" | tee -a $LOG
			return 1
		}
	}

	return 0
)

registry_upgrade()
{
	echo registry_upgrade $1 | tee -a $LOG

	(cat $DATADIR/registry.tdb >$WORKSPACE/registry.tdb) >>$LOG 2>&1

	REGISTRY="${WORKSPACE}/registry.tdb"

	test -e $REGISTRY || {
		echo "Error: Database file not available" | tee -a $LOG
		return 1
	}

	# create config file
	echo '[global]' >${CONFIG_FILE}
	echo "	state directory = ${WORKSPACE}" >>${CONFIG_FILE}
	echo "	private directory = ${WORKSPACE}" >>${CONFIG_FILE}
	echo "	lock directory = ${WORKSPACE}" >>${CONFIG_FILE}

	# set database INFO/version to 1
	#$DBWRAP_TOOL $REGISTRY store 'INFO/version' uint32 1
	#test "x$?" = "x0" || {
	#    echo "Error: Can not set INFO/version" >> $LOG
	#    return 1
	#}

	# check original registry.tdb
	echo "$REGISTRY" | tee -a $LOG
	registry_check 0
	test "x$?" = "x0" || {
		echo "Error: initial 'registry_check 0' failed" | tee -a $LOG
		return 1
	}

	# trigger upgrade
	echo "$NETCMD registry enumerate $REGPATH" >>$LOG
	$NETCMD registry enumerate $REGPATH >>$LOG
	test "x$?" = "x0" || {
		echo "Error: 'net registry enumerate $REGPATH' failed" | tee -a $LOG
		return 1
	}

	# check upgraded database
	registry_check 1
	test "x$?" = "x0" || {
		echo "Error: 'registry_check 1' after upgrade failed" | tee -a $LOG
		return 1
	}

	# export database for diffs
	$NETCMD registry export 'HKLM' $WORKSPACE/export_0.reg | tee -a $LOG
	test "x$?" = "x0" || {
		echo "Error 'net registry export' failed" | tee -a $LOG
		return 1
	}

	# remove version string
	$DBWRAP_TOOL $REGISTRY delete INFO/version | tee -a $LOG
	test "x$?" = "x0" || {
		echo "Error: Can not remove INFO/version key from registry" | tee -a $LOG
		return 1
	}

	# trigger upgrade on upgraded database
	echo "$NETCMD registry enumerate $REGPATH" >>$LOG
	$NETCMD registry enumerate $REGPATH >>$LOG 2>&1
	test "x$?" = "x0" || {
		echo "Error: 'net registry enumerate $REGPATH' failed" | tee -a $LOG
		return 1
	}

	# check upgraded database again
	registry_check 2 checkdiff
	test "x$?" = "x0" || {
		echo "Error: 'registry_check 2' after upgrade failed" | tee -a $LOG
		return 1
	}

	# set database INFO/version to version 2
	$DBWRAP_TOOL $REGISTRY store 'INFO/version' uint32 2
	test "x$?" = "x0" || {
		echo "Error: Can not set INFO/version" | tee -a $LOG
		return 1
	}

	# trigger upgrade
	$NETCMD registry enumerate $REGPATH >>$LOG
	test "x$?" = "x0" || {
		echo "Error: 'net registry enumerate $REGPATH' failed" | tee -a $LOG
		return 1
	}

	# check upgraded database again
	registry_check 3 checkdiff
	test "x$?" = "x0" || {
		echo "Error: 'registry_check 3' after upgrade failed" | tee -a $LOG
		return 1
	}
}

# remove old workspace
rm -rf $WORKSPACE

mkdir $WORKSPACE

DIR=$(mktemp -d ${WORKSPACE}/${LOGDIR_PREFIX}_XXXXXX)
LOG=$DIR/log

testit "registry_upgrade" registry_upgrade || failed=$(expr $failed + 1)

if [ $failed -eq 0 ]; then
	rm -rf $WORKSPACE
fi

testok $0 $failed