#
# AutoPac_EN.sh
# Author:  Henry Hertz Hobbit
# Version: 3.2.0
# 2012-03-24 23:27 UTC
#
# http://www.gnu.org/licenses/lgpl.txt
#
# This script file provides a way to automatically upgrade the
# PAC filters via UnixUtils.  You MUST install UnixUtils first
# though.  See the UtilsSetup.txt file in the
# UnixUtilsInstallation to do that.  The alternative is to use
# the full version of CygWin.  For Windows users that is
# overkill.
#

CURDIR=`pwd`

cd ${SYSTEMDRIVE}
cd /

if [ -f /usr/local/wbin/sha1sum.exe ]
then
	CHECKSUMPROG=sha1sum
	CHECKSUMDATA=sums.sha1
	echo using SHA1 check sums
else
	CHECKSUMPROG=md5sum
	CHECKSUMDATA=sums.md5
	echo using MD5 check sums
fi

# DEPRECATED - hostsfile.org is no more
# Do some primitive load balancing for which host we pull files from.
# The last else clause is for when nothing is there yet.
# if [ -f /etc/LastUsedSMPAC.txt ]
# then
# 	rm -f /etc/LastUsedSMPAC.txt
# 	touch /etc/LastUsedHFPAC.txt
# 	DOWNLOADHOST=www.hostsfile.org
# else
# 	if [ -f /etc/LastUsedHFPAC.txt ]
# 	then
# 		rm -f /etc/LastUsedHFPAC.txt
# 		touch /etc/LastUsedSMPAC.txt
# 		DOWNLOADHOST=www.securemecca.com
# 	else
# 		touch /etc/LastUsedSMPAC.txt
# 		DOWNLOADHOST=www.securemecca.com
# 	fi
# fi
if [ -f /etc/LastUsedSMPAC.txt ]
then
	rm -f /etc/LastUsedSMPAC.txt
fi
if [ -f /etc/LastUsedHFPAC.txt ]
then
	rm -f /etc/LastUsedHFPAC.txt
fi

DOWNLOADHOST=www.securemecca.com

DOUPDATE=1

if [ ! -d etc ]
then
	mkdir etc
	DOUPDATE=0
fi

if [ ! -d etc ]
then
	echo
	echo THE SCRIPT FAILED
	echo
	echo Press Enter to exit
	read TOLKEIN
	exit 1
fi

# If we are up to date then exit
wget -q  ${DOWNLOADHOST}/Downloads/pdate.txt
if [ -f pdate.txt ]
then
	if [ -f /etc/pdate.txt ]
	then
		if diff /etc/pdate.txt pdate.txt
		then
			rm -f pdate.txt
			echo THE PAC FILTER HAS NOT CHANGED
			echo Press Enter to exit
			echo
			read TOLKEIN
			exit 0
		fi
	fi
	cp -fp pdate.txt /etc/pdate.txt
fi
rm -f pdate.txt

cd etc
rm -fr  AutoPac_EN.msw
rm -f  AutoPac_EN.msw.*

# 2011-10 Microsoft Windows BUG
if [ ! -d OneFile ]
then
	mkdir OneFile
fi

if [ -f "${ProgramFiles}\7-Zip\7z.exe" ] && [ ! -f 7z.exe ]
then
	cp -f  "${ProgramFiles}\7-Zip\7z.exe" 7z.exe
	wget -q  ${DOWNLOADHOST}/Downloads/AutoPac_EN.msw.7z
	./7z.exe x AutoPac_EN.msw.7z
	rm -f 7z.exe
else
	wget -q ${DOWNLOADHOST}/Downloads/AutoPac_EN.msw.zip
	unzip AutoPac_EN.msw.zip
fi
rm -f AutoPac_EN.msw.*
if [ -d  AutoPac_EN.msw ]
then
	cd AutoPac_EN.msw
	# If you use http://www.securemecca.com/public/UnixUtils/UnxUtils.zip
	# and have sha1sum.exe then it uses that.  Otherwise it uses the older
	# md5sum.exe.
	if ${CHECKSUMPROG} -c ${CHECKSUMDATA}
	then
		echo checksums are okay ... installing
		echo
		cd ..
		case ${DOUPDATE} in
		1)
			touch  SaveRules.txt
			rm -f oldproxy_en.txt
			rm -f olddbgproxy_en.txt
			if [ -f proxy_en.txt ]
			then
				grep -U PERSONAL  proxy_en.txt  >>  SaveRules.txt
				mv proxy_en.txt oldproxy_en.txt
			fi
			if [ -f dbgproxy_en.txt ]
			then
				grep -U PERSONAL  dbgproxy_en.txt  >>  SaveRules.txt
				mv dbgproxy_en.txt olddbgproxy_en.txt
			fi
			;;
		*)
			;;
		esac
		cp -p AutoPac_EN.msw/proxy_en.txt proxy_en.txt
		# cp -p AutoPac_EN.msw/proxy_en.txt proxy.txt
		cp -p AutoPac_EN.msw/dbgproxy_en.txt dbgproxy_en.txt
		# cp -p AutoPac_EN.msw/dbgproxy_en.txt dbgproxy.txt
		cp -p AutoPac_EN.msw/pornproxy_en.txt pornproxy_en.txt
		# 2011-10 Microsoft Windows BUG
		# if [ -d OldFile ]
		# then
			cp -p AutoPac_EN.msw/proxy_en.txt OneFile/proxy_en.txt
		# fi
		if [ -f AutoPac_EN_Old.sh ]
		then
			echo You have a new AutoPac_EN.sh in the AutoPac_EN.msw folder.
			echo Replace your current AutoPac_EN.sh with the new one ASAP.
			echo
		fi
		echo Installation complete.  Leaving AutoPac_EN.msw with OpenPGP
		echo Encryption signature for stronger verification.
		echo
	else
		echo the checksums FAILED ... exiting
		echo
	fi
else
	echo FAILED to either pull down file or unpack it.
	echo
fi

echo Press Enter to exit
echo
read TOLKEIN

cd ${CURDIR}

exit