#! /bin/sh
#
# This file is part of DisOrder
# Copyright (C) 2004, 2007 Richard Kettlewell
#
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA
#

set -e

. /usr/share/debconf/confmodule

add_jukebox_user() {
  adduser --quiet --system --group --shell /bin/sh --home /var/lib/disorder \
    --no-create-home jukebox
}

configure_init_d() {
  update-rc.d disorder defaults 92 19 > /dev/null
}

restart_server() {
  /etc/init.d/disorder restart
  # Wait for the server to get going.  This is a horrid bodge and ought
  # to be done away with, but is required for the time being.  Sorry.
  sleep 5
}

setup_guest() {
  echo "Checking whether guest user exists..."
  TMPFILE="$(mktemp -t)"
  if disorder users > "$TMPFILE"; then
    if grep -q '^guest$' "$TMPFILE"; then
      echo "Guest user has already been set up."
    else
      echo "Attempting to set up guest user..."
      if disorder setup-guest; then
        echo "Created guest user."
      else
        echo "Failed to create guest user."
        echo "You can use 'disorder setup-guest' to do this step manually."
        echo
      fi
    fi
  else
    echo "Cannot determine whether guest user has been set up."
    echo
  fi
  rm -f "$TMPFILE"
}

fix_configuration() {
  # Once the server has started up, we can remove some of the obsolete
  # directives from the config file.
  if grep -q ^trust /etc/disorder/config; then
    echo "Removing obsolete 'trust' directive from /etc/disorder/config"
    sed < /etc/disorder/config > /etc/disorder/config.new \
	's/^trust/#trust/'
    chmod 644 /etc/disorder/config.new
    mv /etc/disorder/config.new /etc/disorder/config
  fi
  if test -e /etc/disorder/config.private \
      && grep -q ^allow /etc/disorder/config.private; then
    echo "Removing obsolete 'allow' directive(s) from /etc/disorder/config.private"
    u=$(umask)
    umask 077
    sed < /etc/disorder/config.private > /etc/disorder/config.private.new \
	's/^allow/#allow/'
    umask $u
    chmod 640 /etc/disorder/config.private.new
    chown root:jukebox /etc/disorder/config.private.new
    mv /etc/disorder/config.private.new /etc/disorder/config.private
  fi
}

case "$1" in
configure )
  if grep -q ^jukebox: /etc/passwd; then
    :
  else
    add_jukebox_user
  fi
  chown jukebox:jukebox /var/lib/disorder
  configure_init_d
  restart_server
  fix_configuration
  setup_guest
  db_stop
  ;;
abort-upgrade )
  /etc/init.d/disorder restart
  ;;
reconfigure )
  /etc/init.d/disorder reload
  ;;
esac