update-webobjects

#!/bin/sh

# Copyright (C) 2006-2012 Bart Martens <bartm@knars.be>
# Modified for WebObjects by Bastian Triller <bastian.triller@gmail.com>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# 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, see <http://www.gnu.org/licenses/>.

set -e

return_0() {
	return 0
}

trap "return_0" 0

die_hard() {
	echo "ERROR: $1" >&2
	echo "More information might be available at:" >&2
	echo "  http://wiki.wocommunity.org" >&2
	exit 1
}

[ `whoami` = "root" ] || die_hard "must be root"

show_usage() {
	echo "Usage:"
	echo "  update-webobjects --install"
	echo "  update-webobjects --uninstall"
	echo "  update-webobjects --status"
	echo "Additional options:"
	echo "  --verbose"
	echo "  --quiet"
	exit 1
}

getopt_temp=`getopt -o iusfvq --long install,uninstall,status,fast,verbose,quiet -n 'update-webobjects' -- "$@"` || show_usage
eval set -- "$getopt_temp" || show_usage

ACTION=none
fast=no
verbose=no
quiet=no
wo_version=5.4.3

while [ true ]
do
	case "$1" in
		-i|--install)
			ACTION="--install"
			shift
			;;
		-u|--uninstall)
			ACTION="--uninstall"
			shift
			;;
		-s|--status)
			ACTION="--status"
			shift
			;;
		-f|--fast)
			fast=yes
			shift
			;;
		-v|--verbose)
			verbose=yes
			shift
			;;
		-q|--quiet)
			quiet=yes
			shift
			;;
		--)
			shift
			break
			;;
		*)
			echo "Internal error!"
			exit 1
			;;
	esac
done

[ "$ACTION" != "none" -a $# -eq 0 ] || show_usage
[ "$quiet" != "yes" ] || verbose=no
[ "$wo_version" = "5.4.3" ] || die_hard "version $wo_version not supported"

[ "$verbose" != "yes" ] || echo "options : $getopt_temp"

UNPACKDIR=`mktemp -d /tmp/webobjects.XXXXXXXXXX` || die_hard "mktemp failed"
echo "$UNPACKDIR" | grep -q "^/tmp/webobjects\." || die_hard "paranoia"
cd "$UNPACKDIR" || die_hard "cd failed"
mkdir mnt || die_hard "creating mnt directory failed"

[ "$verbose" != "yes" ] || echo "temporary directory: $UNPACKDIR"

do_cleanup() {
	[ "$verbose" != "yes" ] || echo "cleaning up temporary directory $UNPACKDIR ..."
	cd /
	echo "$UNPACKDIR" | grep -q "^/tmp/webobjects\." || die_hard "paranoia"
	mountpoint -q "$UNPACKDIR/mnt" && umount "$UNPACKDIR/mnt"
	[ -n "$LOOP" ] && losetup -d "$LOOP"
	rm -rf "$UNPACKDIR"
}

die_hard_with_a_cleanup() {
	return_0
	do_cleanup
	die_hard "$1"
}

trap "die_hard_with_a_cleanup interrupted" INT

fix_missing_symlink() {

	LANG=C update-alternatives --display $1 > /dev/null 2>&1 \
		|| return 0

	LANG=C update-alternatives --display $1 \
		| grep -q "link currently absent" \
		|| return 0

	[ "$verbose" != "yes" ] || echo "$1 link currently absent, trying to fix"

	update-alternatives --auto $1 > /dev/null 2>&1 || true
}

cachedir=/var/cache/webobjects

wgetquiet=' -q '
wgetfast='-t 3 -T 15 '
wgetalways=' -nd -P . '
wgetprogress=' -v '

get_installed_version() {
	version_plist="/usr/share/webobjects/Library/Frameworks/JavaWebObjects.framework/Resources/Info.plist"
	installed=
	[ -f "$version_plist" ] && \
		installed=`python -c "import plistlib;print plistlib.readPlist('$version_plist')['CFBundleShortVersionString']"` \
		|| true
}

case "$ACTION" in

	--install)
		[ "$verbose" != "yes" ] || echo "selected action = $ACTION"

		get_installed_version
		[ "$verbose" != "yes" ] || echo "installed version = $installed"

		if [ "$installed" != "" -a "$wo_version" != "" -a "$installed" = "$wo_version" ]
		then

			[ "$verbose" != "yes" ] || echo "WebObjects version $wo_version is already installed"

		else

			cp /usr/lib/webobjects/webobjects543.sha512.txt checksums.txt
			downloadfile="WebObjects543.dmg"
			downloaddir="http://supportdownload.apple.com/download.info.apple.com/Apple_Support_Area/Apple_Software_Updates/Mac_OS_X/downloads/061-4634.20080915.3ijd0"

			. /etc/default/webobjects
			[ -n "$WEBOBJECTS_URL" ] && downloaddir="$WEBOBJECTS_URL"

			[ "$verbose" != "yes" ] || [ ! -f $cachedir/$downloadfile ] || echo "copying $cachedir/$downloadfile ..."
			[ ! -f $cachedir/$downloadfile ] || cp -p $cachedir/$downloadfile .

			ln -s mnt/Packages
			modprobe -q loop || true
			LOOP=`losetup -o 33280 --sizelimit 166126592 -f --show $downloadfile 2>/dev/null || true`
			if [ -n "$LOOP" ] && mount -t hfsplus -o ro "$LOOP" mnt 2>/dev/null ; then
				grep " Packages/" checksums.txt | sha512sum -c - > /dev/null 2>&1 \
					|| { umount -d mnt ; rm -f $cachedir/$downloadfile $downloadfile ; LOOP="" ; }
			else
				LOOP=
				rm -f $cachedir/$downloadfile $downloadfile
			fi

			downloadurl=$downloaddir/$downloadfile
			wgetoptions="$wgetalways $wgetprogress"
			[ "$quiet" != "yes" ] || wgetoptions="$wgetquiet $wgetalways"
			[ "$fast" != "yes" ] || wgetoptions="$wgetoptions $wgetfast"
			wgetoptions="$wgetoptions -O $UNPACKDIR/$downloadfile" # to change wget's message "Saving to: ..."
			[ "$verbose" != "yes" ] || echo "wgetoptions=$wgetoptions"

			[ "$verbose" != "yes" ] || [ -f $downloadfile ] || echo "downloading $downloadurl ..."
			[ -f $downloadfile ] || \
			HOME=/root \
			wget $wgetoptions $downloadurl \
				|| die_hard_with_a_cleanup "wget failed to download $downloadurl"
			[ "$verbose" != "yes" ] || [ -n "$LOOP" ] || echo "mounting $downloadfile ..."
			[ -n "$LOOP" ] || LOOP=`losetup -o 33280 --sizelimit 166126592 -f --show "$downloadfile" 2>/dev/null` \
				|| die_hard_with_a_cleanup "could not setup loop device"
			mountpoint -q mnt || mount -t hfsplus -o ro $LOOP mnt \
				|| die_hard_with_a_cleanup "could not mount image"
			[ "$verbose" != "yes" ] || echo "verifying checksum contents of Packages ..."
			grep " Packages/" checksums.txt | sha512sum -c - > /dev/null 2>&1 \
				|| die_hard_with_a_cleanup "sha512sum rejected a part of Packages"

			[ "$verbose" != "yes" ] || [ ! -f "$cachedir/$downloadfile" ] \
				|| echo "copying $downloadfile to $cachedir ..."

			[ -f $cachedir/$downloadfile ] || cp -p $downloadfile $cachedir

			[ "$verbose" != "yes" ] || echo "extracting runtime ..."
			RUNTIME=`/usr/lib/webobjects/xarextract.py -x Packages/WebObjectsRuntime.pkg || die_hard_with_a_cleanup "couldn't extract runtime"`
			mv -f $RUNTIME .
			RUNTIME="$PWD/`basename $RUNTIME`"

			copied_files=`mktemp /tmp/files.XXXXXXXXXX`
			targetdir=/var/lib/webobjects

			[ "$verbose" != "yes" ] || echo "moving webserver resources to $targetdir ..."
			tar --owner=$WEBOBJECTS_USER --group=$WEBOBJECTS_GROUP -C $RUNTIME/System/Library/WebObjects/WODocumentRoot -c WebObjects \
				| tar -C $targetdir/htdocs -xv | sed "s,^,${targetdir#/}/htdocs/," >> $copied_files
			rm -rf $RUNTIME/System/Library/WebObjects/WODocumentRoot
			tar --owner=$WEBOBJECTS_USER --group=$WEBOBJECTS_GROUP -C $RUNTIME/Library/WebServer/Documents -c WebObjects \
				| tar -C $targetdir/htdocs -xv | sed "s,^,${targetdir#/}/htdocs/," >> $copied_files
			mv $targetdir/htdocs/WebObjects/JavaMonitor.woa $targetdir/htdocs/WebObjects/JavaMonitor.woa.apple
			[ "$verbose" != "yes" ] || echo "moving local libraries to $targetdir ..."
			tar --owner=$WEBOBJECTS_USER --group=$WEBOBJECTS_GROUP -C $RUNTIME/ -c Library/Frameworks Library/WebObjects/Applications \
				| tar -C $targetdir -xv | sed "s,^,${targetdir#/}/," >> $copied_files

			targetdir=/usr/share/webobjects

			[ "$verbose" != "yes" ] || echo "removing OSX adaptors ..."
			rm -rf $RUNTIME/System/Library/WebObjects/Adaptors
			[ "$verbose" != "yes" ] || echo "moving system libraries to $targetdir ..."
			tar --owner=root --group=root -hC $RUNTIME/System -c Library \
				| tar -C $targetdir -xv | sed "s,^,${targetdir#/}/," >> $copied_files

			targetdir=/usr/share/doc/webobjects

			[ "$verbose" != "yes" ] || echo "moving examples to $targetdir ..."
			tar --owner=root --group=root -C $RUNTIME/Developer/Examples -c WebObjects JavaWebObjects \
				| tar -C $targetdir/examples -xv | sed "s,^,${targetdir#/}/examples/," >> $copied_files

			[ "$verbose" != "yes" ] || ( get_installed_version && echo "WebObjects version: $installed" )


			fix_missing_symlink wotaskd || true
			fix_missing_symlink javamonitor || true

			[ "$verbose" != "yes" ] || \
			update-alternatives --display wotaskd || true

			[ "$verbose" != "yes" ] || \
			update-alternatives --display javamonitor || true

			[ "$verbose" != "yes" ] || echo "calling update-alternatives for wotaskd ..."
			update-alternatives --quiet --install \
				/usr/share/webobjects/bin/wotaskd wotaskd \
				/usr/share/webobjects/Library/WebObjects/JavaApplications/wotaskd.woa/wotaskd 5 \
				|| die_hard_with_a_cleanup "update-alternatives failed to install wotaskd"

			[ "$verbose" != "yes" ] || echo "calling update-alternatives for JavaMonitor ..."
			update-alternatives --quiet --install \
				/usr/share/webobjects/bin/javamonitor javamonitor \
				/usr/share/webobjects/Library/WebObjects/JavaApplications/JavaMonitor.woa/JavaMonitor 5 \
				--slave /var/lib/webobjects/htdocs/WebObjects/JavaMonitor.woa JavaMonitor.woa \
					/var/lib/webobjects/htdocs/WebObjects/JavaMonitor.woa.apple \
				|| die_hard_with_a_cleanup "update-alternatives failed to install javamonitor"

			[ "$verbose" != "yes" ] || \
			update-alternatives --display wotaskd || true

			[ "$verbose" != "yes" ] || \
			update-alternatives --display javamonitor || true

			( cd / ; grep -v "/$" $copied_files | sort -u | xargs md5sum > /var/lib/webobjects/extrafiles.md5sums )
			grep "/$" $copied_files | sort -u > /var/lib/webobjects/extradirs.list
		fi # end if installed != upstream

		[ "$verbose" != "yes" ] || echo "end of action $ACTION"

		;;

	--uninstall)
		[ "$verbose" != "yes" ] || echo "selected action = $ACTION"

		update-alternatives --remove wotaskd /usr/share/webobjects/Library/WebObjects/JavaApplications/wotaskd.woa/wotaskd
		update-alternatives --remove javamonitor /usr/share/webobjects/Library/WebObjects/JavaApplications/JavaMonitor.woa/JavaMonitor

		[ "$verbose" != "yes" ] || echo "removing files ..."

		[ -e /var/lib/webobjects/extrafiles.md5sums ] || touch /var/lib/webobjects/extrafiles.md5sums

		(
			IFS=":"
			cd /
			LANG=C md5sum -c < /var/lib/webobjects/extrafiles.md5sums \
				| while read file status ; do
					targetfile="/$file"

					if [ ! -e $targetfile ] ; then
						echo "not found: $targetfile"
					elif [ "$status" = " OK" ] ; then
						[ "$verbose" != "yes" ] || echo "removing $targetfile"

						rm -f $targetfile
					else
						echo "not removing modified $targetfile"
					fi
				done
		)

		rm -f /var/lib/webobjects/extrafiles.md5sums


		( cd / ; tac /var/lib/webobjects/extradirs.list | xargs -r rmdir --ignore-fail-on-non-empty )

		rm -f /var/lib/webobjects/extradirs.list

		[ "$verbose" != "yes" ] || echo "end of action $ACTION"

		;;

	--status)
		[ "$verbose" != "yes" ] || echo "selected action = $ACTION"

		get_installed_version
		echo "WebObjects version installed on this system  : $installed"

		#LANG=C update-alternatives --display flash-mozilla.so || true

		[ "$verbose" != "yes" ] || echo "end of action $ACTION"

		;;

	*)

		do_cleanup
		show_usage

		;;

esac

do_cleanup

[ "$verbose" != "yes" ] || echo "end of update-webobjects"