This file is indexed.

postinst is in postsrsd 1.4-1.

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

CONFIGFILE=/etc/default/postsrsd
set -e
. /usr/share/debconf/confmodule

if [ "$1" = "configure" ]; then
	if [ ! -f /etc/postsrsd.secret ]; then
		echo "postsrsd: Generating initial /etc/postsrsd.secret" >&2
		( umask 0077 ; dd if=/dev/urandom bs=24 count=1 2>/dev/null | base64 -w0 > /etc/postsrsd.secret )
	fi

	# We'll only write the configured domain to the config file if it doesn't
	# exist yet, or we're called by dpkg-reconfigure.
	db_get postsrsd/domain; DOMAIN="$RET"

	if [ ! -e $CONFIGFILE ]; then
		cp -a -f /usr/share/postsrsd/postsrsd.template $CONFIGFILE.tmp
		# strip comment from SRS_DOMAIN and write configured domain to config file
		sed -i "s/^#SRS_DOMAIN=.*/SRS_DOMAIN=$DOMAIN/" $CONFIGFILE.tmp
		mv -f $CONFIGFILE.tmp $CONFIGFILE
	fi

	if [ "$DEBCONF_RECONFIGURE" = "1" ]; then
		cp -a -f $CONFIGFILE $CONFIGFILE.tmp
		sed -i "s/^ *SRS_DOMAIN=.*/SRS_DOMAIN=$DOMAIN/" $CONFIGFILE.tmp
		mv -f $CONFIGFILE.tmp $CONFIGFILE
	fi

	# Create user
	if ! getent passwd postsrsd > /dev/null; then
		adduser --quiet --system --group --no-create-home --home /var/lib/postsrsd postsrsd

		# When upgrading from versions before 1.4, change the RUN_AS variable in the
		# configuration file from nobody to the postsrsd user.
		if dpkg --compare-versions "$2" lt "1.4-1"; then
			cp -a -f $CONFIGFILE $CONFIGFILE.tmp
			sed -i "s/^ *RUN_AS=nobody */RUN_AS=postsrsd/" $CONFIGFILE.tmp
			mv -f $CONFIGFILE.tmp $CONFIGFILE
		fi
	fi
fi

# Stop communcation with debconf, as the daemon might get confused with the extra file
# descriptor if we an init system that doesn't close it.
db_stop

# Automatically added by dh_apparmor
aa_is_enabled() {
   if command aa-enabled >/dev/null 2>&1; then
      # apparmor >= 2.10.95-2
      aa-enabled --quiet 2>/dev/null
   else
      # apparmor << 2.10.95-2
      # (This should be removed once Debian Stretch and Ubuntu 18.04 are out.)
      rc=0
      aa-status --enabled 2>/dev/null || rc=$?
      [ "$rc" = 0 ] || [ "$rc" = 2 ]
   fi
}

if [ "$1" = "configure" ]; then
    APP_PROFILE="/etc/apparmor.d/usr.sbin.postsrsd"
    if [ -f "$APP_PROFILE" ]; then
        # Add the local/ include
        LOCAL_APP_PROFILE="/etc/apparmor.d/local/usr.sbin.postsrsd"

        test -e "$LOCAL_APP_PROFILE" || {
            tmp=`mktemp`
        cat <<EOM > "$tmp"
# Site-specific additions and overrides for usr.sbin.postsrsd.
# For more details, please see /etc/apparmor.d/local/README.
EOM
            mkdir `dirname "$LOCAL_APP_PROFILE"` 2>/dev/null || true
            mv -f "$tmp" "$LOCAL_APP_PROFILE"
            chmod 644 "$LOCAL_APP_PROFILE"
        }

        # Reload the profile, including any abstraction updates
        if aa_is_enabled; then
            apparmor_parser -r -T -W "$APP_PROFILE" || true
        fi
    fi
fi
# End automatically added section
# Automatically added by dh_systemd_enable
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask postsrsd.service >/dev/null || true

# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled postsrsd.service; then
	# Enables the unit on first installation, creates new
	# symlinks on upgrades if the unit file has changed.
	deb-systemd-helper enable postsrsd.service >/dev/null || true
else
	# Update the statefile to add new symlinks (if any), which need to be
	# cleaned up on purge. Also remove old symlinks.
	deb-systemd-helper update-state postsrsd.service >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_installinit
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ]; then
	if [ -x "/etc/init.d/postsrsd" ]; then
		update-rc.d postsrsd defaults >/dev/null
		if [ -n "$2" ]; then
			_dh_action=restart
		else
			_dh_action=start
		fi
		invoke-rc.d postsrsd $_dh_action || exit $?
	fi
fi
# End automatically added section