#!/bin/sh

# File        :  uninstall.command
#
# Purpose     :  Remove the Privoxy application and (optionally) its  
#                configuration files from the target system
#
# Copyright   :  Written by and Copyright (C) 2001-2012 the
#                Privoxy team. http://www.privoxy.org/
#
#                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.
#
#                The GNU General Public License should be included with
#                this file.  If not, you can view it at
#                http://www.gnu.org/copyleft/gpl.html
#                or write to the Free Software Foundation, Inc.,
#                51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
#                USA
#
# Modification : If you modify this file please consider whether your 
#                changes ought to be passed back to the macsetup module.
#

root_UID=0   # Root has $UID 0.

if [ "$UID" -eq "$root_UID" ]; then
	echo  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
	echo 'About to remove the Privoxy application.  Are you sure? (Y/N)'
	echo  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
	read ANSWER
	if (test z$ANSWER = zY) || (test z$ANSWER = zy) then
		echo  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
		echo 'Last chance.  Removing Privoxy...  Are you sure? (Y/N)'
		echo  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
		read ANSWER
		if (test z$ANSWER = zY) || (test z$ANSWER = zy) then
			echo Stopping Privoxy.
			kill `ps -ax | grep /privoxy | grep -v grep | awk '{ print $1 }'` 2> /dev/null
			# Remove items common to all OS X versions
			echo Deleting Privoxy and its documentation
			# Delete binary
			rm -f /usr/local/sbin/privoxy
			# Delete documention
			rm -rf /usr/local/share/doc/privoxy
			# Delete manpage
			rm -f /usr/local/share/man/man1/privoxy.1
			# Optionally delete config files
			echo  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
			echo 'Delete configuration files? (Y/N)'
			echo  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
			read ANSWER
			if (test z$ANSWER = zY) || (test z$ANSWER = zy) then
				rm -rf /usr/local/etc/privoxy
			fi
			# Delete log files
			rm -rf /var/log/privoxy
			# Delete folder from /Applications
			rm -rf /Applications/Privoxy
			
			# Delete all items referenced by the installation package
			echo 'Delete package installation receipt (ignore errors relating to other bundle identifiers).'
			# On OS X 10.5 or newer we can use the new pkgutil command else simply delete the receipt file
			if [ -x /usr/sbin/pkgutil ]; then
				pkgutil --forget org.ijbswa.privoxyPRIVOXY_VERSION.pkg
			else
				rm -rf /Library/Receipts/Privoxy\ PRIVOXY_VERSION\ OS\ X\ 10.4.pkg
			fi

			# Check the Trash, just in case the user manually removed the only obvious item from /Applications
			if [ -d ~/.Trash/Privoxy ]; then
				echo Removing Privoxy from the trash.
				rm -rf ~/.Trash/Privoxy
			fi

			# Delete host-dependent items - first ascertain OS X version
			darwin_major_rel_num="`/usr/bin/uname -r | /usr/bin/sed 's/\..*//'`"

			case "${darwin_major_rel_num}" in
				# Mac OS X 10.5 or higher
				9|1*)
					# Delete Privoxy LaunchDaemon
					echo 'Delete Privoxy LaunchDaemon (an error will be thrown regarding "no such process")'
					/bin/launchctl unload /Library/LaunchDaemons/org.ijbswa.privoxy.plist
					/bin/launchctl remove /Library/LaunchDaemons/org.ijbswa.privoxy.plist
					rm -f /Library/LaunchDaemons/org.ijbswa.privoxy.plist
					# The installer might have disabled a previous Privoxy LaunchDaemon
					rm -rf /Library/LaunchDaemons/Disabled/org.ijbswa.privoxy.plist
					# There might have previously been a StartupItem installed
					rm -rf /Library/StartupItems/Privoxy
					# There might have previously been a disabled Privoxy StartupItem
					rm -rf /Library/StartupItems/Disabled/Privoxy
					# Remove user and group
					echo Removing privoxy user and group
					dscl /Local/Default -delete /Users/_privoxy
					dscl /Local/Default -delete /Groups/_privoxy
				;;
				# Mac OS X 10.4, 10.3
				8|7)
					# Delete Privoxy StartupItem
					echo Delete Privoxy StartupItem
					rm -rf /Library/StartupItems/Privoxy
					# The installer might have disabled a previous Privoxy StartupItem
					rm -rf /Library/StartupItems/Disabled/Privoxy
					# Remove user and group
					echo Removing privoxy user and group
					niutil -destroy / /groups/privoxy
					niutil -destroy / /users/privoxy
				;;
				# default
				*)
				;;
			esac

			# Despite the various errors that may have been thrown, give the user a good feeling!
			echo
			echo Uninstallation complete.
		else 
			echo Uninstall aborted.
		fi
	else
		echo Uninstall aborted.
	fi
else
	echo
  echo This script requires administrator privileges.
	echo "Please run it from Terminal, using an administrator account, as follows:"
	echo
	echo "sudo /Applications/Privoxy/uninstall.command"
	echo
fi

exit 0