#!/bin/sh  -e

I2PHOME=/var/lib/i2p
I2PSYSUSER=i2psvc

conffile="/etc/default/i2p"

# Source debconf library -- we have a Depends line
# to make sure it is there...
. /usr/share/debconf/confmodule
db_version 2.0


case "$1" in
	configure|reconfigure)
		if [ ! -e $conffile ]; then
			echo "# Defaults for i2p initscript (/etc/init.d/i2p" >> $conffile
			echo "# This is a posix shell fragment" >> $conffile
			echo >> $conffile
			echo "# [automatically edited by postinst, do not change line format ]" >> $conffile
			echo "# Run 'dpkg-reconfigure -plow i2p' to change these values." >> $conffile
			echo >> $conffile
			echo "RUN_DAEMON=" >> $conffile
			echo "I2PUSER=" >> $conffile
		fi

		db_get i2p/daemon
		RUN_DAEMON="$RET"
		db_get i2p/user
		I2PUSER="$RET"

		cp -a -f $conffile $conffile.tmp

		# If the admin deleted or commented some variables but then set them via debconf,
		# (re-)add them to the conffile.
		test -z "$RUN_DAEMON" || grep -Eq '^ *RUN_DAEMON=' $conffile || \
			echo "RUN_DAEMON=" >> $conffile
		test -z "$I2PUSER" || grep -Eq '^ *I2PUSER=' $conffile || \
			echo "I2PUSER=" >> $conffile

		if [ -z $RUN_DAEMON ]; then
			RUN_DAEMON="false"
			I2PUSER="i2psvc"
		fi

		sed -e "s/^ *RUN_DAEMON=.*/RUN_DAEMON=\"$RUN_DAEMON\"/" \
			-e "s/^ *I2PUSER=.*/I2PUSER=\"$I2PUSER\"/" \
			< $conffile > $conffile.tmp
		mv -f $conffile.tmp $conffile

	migrate_existing_user(){
		# Adjust the user/group in /etc/passwd, mainly for upgrades from old packages that didn't
		# create $I2PSYSUSER as a system group/user
		usermod -c "I2P Router Daemon" -m -d $I2PHOME -g $I2PSYSUSER -s "/bin/false" \
			-l $I2PSYSUSER -e 1 > /dev/null 2>&1
		echo "Existing user migrated, home directory moved to $I2PHOME"
	}

	# Create user and group as a system user.
	adduser --system --quiet --group --home $I2PHOME $I2PSYSUSER || migrate_existing_user

	[ -d /var/log/i2p ] || mkdir -m0750 /var/log/i2p
	chown -f -R $I2PSYSUSER:adm /var/log/i2p

	# Has someone set the permissions with dpkg-statoverride? If so, obey them.
	if ! dpkg-statoverride --list $I2PHOME > /dev/null 2>&1
	then
		chown -f -R $I2PSYSUSER:$I2PSYSUSER $I2PHOME
		chmod -f u=rwx,g=rxs,o= $I2PHOME
	fi

	db_stop
;;
abort-upgrade|abort-remove|abort-deconfigure)
	echo "Aborting upgrade"
	exit 0
	;;
*)
        echo "postinst called with unknown argument \`$1'" >&2
                exit 0
                ;;
esac
	
#DEBHELPER#

exit 0