clonezilla 3.27.16-2 / usr / sbin / ocs-live-get-img

#!/bin/bash
# License: GPL 
# Author: Steven Shiau <steven _at_ clonezilla org>
# Description: Program to restore an image by receiving multicast packets from server
# What will be done in this program:
# 1. Get a tarball about the image which contains all files in the image except file system image files.
# 3. Get a script about the full command to start restoring.
#
DRBL_SCRIPT_PATH="${DRBL_SCRIPT_PATH:-/usr/share/drbl}"
. $DRBL_SCRIPT_PATH/sbin/drbl-conf-functions
. /etc/drbl/drbl-ocs.conf
. $DRBL_SCRIPT_PATH/sbin/ocs-functions

# Load the config in ocs-live.conf. This is specially for Clonezilla live. It will overwrite some settings of /etc/drbl/drbl-ocs.conf, such as $DIA...
[ -e "/etc/ocs/ocs-live.conf" ] && . /etc/ocs/ocs-live.conf

# Functions
USAGE() {
    echo "$ocs - To start restoring an image from multicast server by Clonezilla"
    echo "Usage:"
    echo "To run $ocs:"
    echo "$ocs [OPTION] [SERVER]"
    echo "This program is specially used in Clonezilla live to start restoring an image with multicast packets in clients."
    echo "Options:"
    echo "-b, --batch-mode   Run in batch mode"
    echo "SERVER is the multicast server IP address or FQDN, e.g. 192.168.25.111..."
    echo "If no SERVER is specified, a dialog menu will be shown."
    echo "Ex:"
    echo "To start restoring an image in client machine from multicaast feeding server 192.168.25.111, run"
    echo "   $ocs 192.168.25.111"
    echo
} # end of USAGE
#
task_run_restoring() {
  network_config_if_necessary
  # No need for this. We have a tarball solution.
  #if ! mountpoint $ocsroot >/dev/null 2>&1; then 
  #  prep-ocsroot
  #fi
  
  if [ "$cast_srv" = "ask_user" ]; then
    # Ask about multicast feeding server
    TMP="$(mktemp /tmp/ocs-cast-srv.XXXXXX)"
    trap "[ -f "$TMP" ] && rm -f $TMP" HUP INT QUIT TERM EXIT
    srv_default="$(LC_ALL=C route -n | grep "^0.0.0.0" | awk -F" " '{print $2}')"
    ask_="true"
    while [ "$ask_" = "true" ]; do
      $DIA --backtitle "$msg_nchc_free_software_labs" --title  \
      "Multicast server" --inputbox "$msg_ip_address_or_FQDN_of_server: Multicast server" \
      0 0 $srv_default $DIA_ESC \
      2> $TMP
      cast_srv="$(cat $TMP)"
      if [ -z "$cast_srv" ]; then
        $DIA --backtitle "$msg_nchc_free_software_labs" --title "$msg_nchc_clonezilla" \
        --yesno "$msg_you_must_input_a_server\n$msg_do_u_want_to_do_it_again" 0 0
        ans_="$?"
        case "$ans_" in
          0) # yes is chosen
             ask_="true";;
          1) # no is chosen
             echo "$msg_program_stop!" | tee -a ${OCS_LOGFILE}
             [ -f "$TMP" ] && rm -f $TMP
             exit 1;;
        esac
      else
        # Got the one we want
        ask_="false"
      fi
    done
    [ -f "$TMP" ] && rm -f $TMP
  fi
  if [ -z "$cast_srv" ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "No Clonezilla live lite server was assigned or found!" | tee -a ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop!" | tee -a ${OCS_LOGFILE}
    exit 1
  fi
  echo "Multicast server is: $cast_srv" | tee -a ${OCS_LOGFILE}
  # Get info from server then restoring
  # Part 1: get config file
  rm -f /tmp/ocs-client-run.conf
  get_run_conf="wget -P /tmp/ http://$cast_srv/ocs-client-run.conf"
  echo "Running: $get_run_conf"
  eval $get_run_conf | tee -a ${OCS_LOGFILE}
  if [ -e "/tmp/ocs-client-run.conf" ]; then
    echo "The content of /tmp/ocs-client-run.conf:" >> ${OCS_LOGFILE}
    echo $msg_delimiter_star_line >> ${OCS_LOGFILE}
    cat /tmp/ocs-client-run.conf >> ${OCS_LOGFILE}
    echo $msg_delimiter_star_line >> ${OCS_LOGFILE}
  else
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "$msg_failed_to_get_file_from_this_URL: http://$cast_srv/ocs-client-run.conf" | tee -a ${OCS_LOGFILE}
    echo "$msg_program_stop." | tee -a ${OCS_LOGFILE}
    [ "$save_restore_error_log" = "yes" ] && copy_error_log
  fi
  # get pseudo_img and ocs_sr_opt
  pseudo_img=""
  img_prefix=""
  ocs_sr_opt=""
  . /tmp/ocs-client-run.conf
  if [ -z "$pseudo_img" ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "No pseudo_img was assigned in /tmp/ocs-client-run.conf!" | tee -a ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop" | tee -a ${OCS_LOGFILE}
    exit 1
  fi
  if [ -z "$ocs_sr_opt" ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "No ocs_sr_opt was assigned in /tmp/ocs-client-run.conf!" | tee -a ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop" | tee -a ${OCS_LOGFILE}
    exit 1
  fi
  [ -z "$img_prefix" ] && img_prefix="ocs-img"

  # Part 2: get pseudo image file
  echo "Preparing the image info..." | tee -a ${OCS_LOGFILE}
  rm -f /tmp/$pseudo_img | tee -a ${OCS_LOGFILE}
  wget -P /tmp/ http://$cast_srv/$pseudo_img | tee -a ${OCS_LOGFILE}
  if [ ! -e /tmp/$pseudo_img ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "Failed to retreive $pseudo_img from http://$cast_srv/." | tee -a ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop" | tee -a ${OCS_LOGFILE}
    exit 1
  fi
  if [ -d "$/tmp/${img_prefix}" ]; then
    # If image already exists in /tmp, create a random dir.
    image="$(mktemp -d /tmp/${img_prefix}.XXXXXX)"
  else
    image="/tmp/${img_prefix}"
    mkdir -p $image
  fi
  tar -xJf /tmp/$pseudo_img -C $image | tee -a ${OCS_LOGFILE}
  if [ -d "$image/btzone" ]; then
    mkdir -p /tmp/btzone/$(basename $image) | tee -a ${OCS_LOGFILE}
    mv $image/btzone/*.torrent /tmp/btzone/$(basename $image) | tee -a ${OCS_LOGFILE}
  fi
  # Run restoring
  # Before running, replace the new created image name
  ocs_sr_opt="$(echo $ocs_sr_opt | sed -r -e "s/ocs_lite_pseudo_name/$(basename $image)/g")"
  if [ -n "$(ls -A $image 2>/dev/null)" ]; then
    echo "Starting restoring..." | tee -a ${OCS_LOGFILE}
    ocs-sr -os $cast_srv $ocs_sr_opt
  else
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "Failed to find the correct pseudo image dir $image" | tee -a ${OCS_LOGFILE}
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop" | tee -a ${OCS_LOGFILE}
    exit 1
  fi
} # end of task_run_restoring

####################
### Main program ###
####################

ocs_file="$0"
ocs=`basename $ocs_file`
OCS_LOGFILE="/var/log/${ocs}.log"
#
while [ $# -gt 0 ]; do
 case "$1" in
   -b|--batch) ocs_batch_mode="on"; shift;;
   -v|--verbose)
           verbose="on"
	   shift;;
   -*)     echo "${0}: ${1}: invalid option" >&2
           USAGE >& 2
           exit 2 ;;
   *)      break ;;
 esac
done

cast_srv="$1"
[ -z "$cast_srv" ] && cast_srv="ask_user"
#
check_if_root
check_if_in_clonezilla_live
ask_and_load_lang_set

# check DIA
check_DIA_set_ESC $DIA

mkdir -p $ocs_log_dir
ocs_log_rotate $OCS_LOGFILE

# Check if run on clonezilla live lite server
if [ -e "/var/www/html/img-wo-fs.tar.xz" -a -e "/var/www/html/ocs-client-run.conf" ]; then
  [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
  echo "$msg_client_program_is_run_on_lite_server" | tee -a ${OCS_LOGFILE}
  [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
  echo -n "$msg_are_u_sure_u_want_to_continue (y/N) " | tee -a ${OCS_LOGFILE}
  read continue_confirm_ans
  case "$continue_confirm_ans" in
       y|Y|[yY][eE][sS])
          echo "$msg_let_me_ask_you_again."
          echo -n "$msg_are_u_sure_u_want_to_continue (y/N) " | tee -a ${OCS_LOGFILE}
          read confirm_ans_again
          case "$confirm_ans_again" in
          y|Y|[yY][eE][sS])
             echo "$msg_ok_let_do_it" | tee -a ${OCS_LOGFILE}
	     ;;
          *)
             echo "$msg_program_stop." | tee -a ${OCS_LOGFILE}
             copy_error_log
             exit 1
          esac
             ;;
       *)
          echo "$msg_program_stop." | tee -a ${OCS_LOGFILE}
          # Saving mode, always copy error log to image dir.
          copy_error_log
          exit 1
  esac
fi

#
task_run_restoring