disobedience more robust against server restart

[disorder] / debian / postinst

#! /bin/sh
#
# This file is part of DisOrder
# Copyright (C) 2004 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
}

case "$1" in
configure )
  if grep -q ^jukebox: /etc/passwd; then
    :
  else
    add_jukebox_user
  fi
  if test ! -f /etc/disorder/config.private; then
    # pwgen in debian stable has insane exit status
    set +e
    rootpw=`pwgen 16 1`
    webpw=`pwgen 16 1`
    set -e
    if test -z "$rootpw" || test -z "$webpw"; then
      echo "$0: pwgen failed" 1>&2
      exit 1
    fi
    u=`umask`
    umask 077

    echo allow root "$rootpw" > /etc/disorder/config.private.new
    echo allow www-data "$webpw" >> /etc/disorder/config.private.new
    chgrp jukebox /etc/disorder/config.private.new
    chmod 640 /etc/disorder/config.private.new
    mv /etc/disorder/config.private.new /etc/disorder/config.private

    if test ! -f /etc/disorder/config.www-data; then
      echo password "$webpw" > /etc/disorder/config.www-data.new
      chgrp www-data /etc/disorder/config.www-data.new
      chmod 640 /etc/disorder/config.www-data.new
      mv /etc/disorder/config.www-data.new /etc/disorder/config.www-data
    fi
    umask $u
  fi

  if test ! -f /etc/disorder/http.users; then
    u=`umask`
    umask 077
    touch /etc/disorder/http.users
    chgrp www-data /etc/disorder/http.users
    chmod 640 /etc/disorder/http.users
    umask $u
  fi
  chown jukebox:jukebox /var/lib/disorder
  configure_init_d
  restart_server
  if test ! -e /etc/disorder/http.users; then
    touch /etc/disorder/http.users
  fi
  db_stop
  ldconfig -n /usr/lib
  ;;
abort-upgrade )
  /etc/init.d/disorder restart
  ;;
reconfigure )
  /etc/init.d/disorder reload
  ;;
esac