This file is indexed.

postinst is in gnunet-server 0.9.3-7build1.

This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.

The actual contents of the file can be viewed below.

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#!/bin/sh

set -e

. /usr/share/debconf/confmodule

case "${1}" in
	configure)
		db_version 2.0

		db_get gnunet-server/username
		_USERNAME="${RET:-gnunet}"

		db_get gnunet-server/groupname
		_GROUPNAME="${RET:-gnunet}"

		db_get gnunet-server/autostart
		_AUTOSTART="${RET}" # boolean

		db_stop

		CONFIG_FILE="/etc/default/gnunet-server"
		
		# Read default values
		SERVICEHOME="/var/lib/gnunet"
		eval $(grep SERVICEHOME /etc/gnunet.conf | tr -d [:blank:])

		# Creating gnunet group if needed
		if ! getent group ${_GROUPNAME} > /dev/null
		then
			echo -n "Creating new GNUnet group ${_GROUPNAME}:"
			addgroup --quiet --system ${_GROUPNAME}
			echo " done."
		fi

		# Creating gnunet user if needed
		if ! getent passwd ${_USERNAME} > /dev/null
		then
			echo -n "Creating new GNUnet user ${_USERNAME}:"
			adduser --quiet --system --ingroup ${_GROUPNAME} --no-create-home ${_USERNAME}
			echo " done."
		fi

		# Add a special secured group
		GNUNETDNS_GROUP="gnunetdns"
		
		# Creating gnunetdns group if needed
		if ! getent group ${GNUNETDNS_GROUP} > /dev/null
		then
			echo -n "Creating new secured GNUnet group ${GNUNETDNS_GROUP}:"
			addgroup --quiet --system ${GNUNETDNS_GROUP}
			echo " done."
		fi

		# this can go away after wheezy
		if dpkg --compare-versions "$2" le "0.9.3-2" && dpkg --compare-versions "$2" ge "0.9.2-1"; then
			for file in /usr/bin/gnunet-helper-exit \
				/usr/bin/gnunet-helper-fs-publish \
				/usr/bin/gnunet-helper-nat-client \
				/usr/bin/gnunet-helper-nat-server \
				/usr/bin/gnunet-helper-transport-wlan \
				/usr/bin/gnunet-helper-vpn \
				/usr/bin/gnunet-helper-dns \
				/usr/bin/gnunet-service-dns
			do
				if dpkg-statoverride --list $file >/dev/null 2>&1
				then
					dpkg-statoverride --remove $file
				fi
			done
		fi
		
		# Update files and directories permissions.
		# Assuming default values, this *should* not be changed.
		echo -n "Updating files and directories permissions:"
		chown -R ${_USERNAME}:${_GROUPNAME} /var/log/gnunetd
		chown -R ${_USERNAME}:${_GROUPNAME} ${SERVICEHOME}
		# Secure access to the data directory
		chmod 0700 "${SERVICEHOME}" || true
		# Restrict access on setuid binaries
		for file in /usr/bin/gnunet-helper-exit \
			/usr/bin/gnunet-helper-fs-publish \
			/usr/bin/gnunet-helper-nat-client \
			/usr/bin/gnunet-helper-nat-server \
			/usr/bin/gnunet-helper-transport-wlan \
			/usr/bin/gnunet-helper-vpn
		do
			# only do something when no setting exists
			if ! dpkg-statoverride --list $file >/dev/null 2>&1
			then
				chown root:${_GROUPNAME} $file
				chmod 4754 $file
			fi
		done
		if ! dpkg-statoverride --list /usr/bin/gnunet-helper-dns >/dev/null 2>&1
		then
			chown root:${GNUNETDNS_GROUP} /usr/bin/gnunet-helper-dns
			chmod 4754 /usr/bin/gnunet-helper-dns
		fi
		if ! dpkg-statoverride --list /usr/bin/gnunet-service-dns >/dev/null 2>&1
		then
			chown ${_USERNAME}:${GNUNETDNS_GROUP} /usr/bin/gnunet-service-dns
			chmod 2754 /usr/bin/gnunet-service-dns
		fi
		echo  " done."

		# Writing new values to configuration file
		echo -n "Writing new configuration file:"
		CONFIG_NEW=$(tempfile)

cat > "${CONFIG_NEW}" <<EOF
# This file controls the behaviour of the GNUnet init script.
# It will be parsed as a shell script.
# please do not edit by hand, use 'dpkg-reconfigure gnunet-server'.

GNUNET_USER=${_USERNAME}
GNUNET_GROUP=${_GROUPNAME}
GNUNET_AUTOSTART="${_AUTOSTART}"
EOF

		cp -f "${CONFIG_NEW}" "${CONFIG_FILE}"
		echo " done."
		
		# Cleaning old config file
		if dpkg-maintscript-helper supports rm_conffile 2>/dev/null; then
			dpkg-maintscript-helper rm_conffile /etc/gnunetd.conf 0.9.2-1~ -- "$@"
		fi
		
		# Cleaning
		rm -f "${CONFIG_NEW}"
		echo "All done."
		;;

	abort-upgrade|abort-remove|abort-deconfigure)

		;;

	*)
		echo "postinst called with unknown argument \`${1}'" >&2
		exit 1
		;;
esac

# Automatically added by dh_installinit
if [ -x "/etc/init.d/gnunet-server" ] || [ -e "/etc/init/gnunet-server.conf" ]; then
	if [ ! -e "/etc/init/gnunet-server.conf" ]; then
		update-rc.d gnunet-server defaults >/dev/null
	fi
	invoke-rc.d gnunet-server start || exit $?
fi
# End automatically added section
# Automatically added by dh_makeshlibs
if [ "$1" = "configure" ]; then
	ldconfig
fi
# End automatically added section


exit 0