#!/usr/bin/bash

if [[ $(/usr/bin/id -u) != 0 ]]; then /usr/bin/echo "only root can do that"; exit 2; fi

#***************************************************************************
# This file is part of the CRYPTO BONE
# File     : analysetarball 
# Version  : 2.0 (ALL-IN-ONE)
# License  : BSD-3-Clause
# Date     : 29 Mar 2025
# Contact  : Please send enquiries and bug-reports to innovation@senderek.ie
#
#
# Copyright (c) 2015-2025
#	Ralf Senderek, Ireland.  All rights reserved. (https://senderek.ie)
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
#    must display the following acknowledgement:
#	   This product includes software developed by Ralf Senderek.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND  ANY EXPRESS OR 
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE  IMPLIED WARRANTIES 
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
# POSSIBILITY OF SUCH DAMAGE.
#****************************************************************************

. /usr/lib/cryptobone/safewebdrop.header
. ${CBHOME}/safewebdrop/bin/client-functions

function new_name
{
     # $1 : directory
     # $2 : extension that is appended, if $2 exists
     NAME=""
     LAST=""
     typeset -i NUM=1
     if [[ $1 ]]
     then
          if [[ $2 ]]
	  then
               LAST=$(/usr/bin/ls $1/*.$2 2>/dev/null | /usr/bin/sort | /usr/bin/tail -1)
	       LAST=${LAST%.$2}
	  else
               LAST=$(/usr/bin/ls $1 2> /dev/null | /usr/bin/sort | /usr/bin/tail -1)
	  fi
          LAST=${LAST##*.}
          LAST=${LAST#0}
          LAST=${LAST#0}
          LAST=${LAST#0}
	  NUM=${LAST}
	  NUM=${NUM}+1
          if ((  ${NUM} < 10 ))
          then
               NAME="message.000"${NUM}
          else
               if (( ${NUM} < 100 ))
               then
                    NAME="message.00"${NUM}
               else
                    if (( ${NUM} < 1000 ))
                    then
                         NAME="message.0"${NUM}
                    else
                         NAME="message."${NUM}
                    fi
               fi
          fi
     fi
     if (( ${NUM} == 0 ))
     then
          NAME="message.0001" 
     fi
     if [[ $2 ]]
     then
          NAME=${NAME}.$2
     fi
     /usr/bin/echo ${NAME}
}

INFILE="$RAM/TAR/tarball.tgz"

log "analysing ${INFILE}"

if [ -r ${INFILE} ]; then
    cd $RAM/TAR
    /usr/bin/tar xzf ${INFILE}
else
    # nothing to analyse
    exit 2
fi


# move all files into $RAM/FILES

for ASC in $(/usr/bin/ls ${RAM}/TAR/file*)
do
    # delete last two lines
    /usr/bin/sed -i '$d' ${ASC}
    /usr/bin/sed -i '$d' ${ASC}
    LASTLINE=$(/usr/bin/tail -1 ${ASC})
    ATTACHMENTNAME=${LASTLINE##*:}
    NUMBER=${LASTLINE%%:*}
    ATTACHMENT=${ATTACHMENTNAME}.asc
    if [[ ${ATTACHMENT} ]]; then
         /usr/bin/mv ${ASC} ${RAM}/FILES/${ATTACHMENT}
         log " ${ATTACHMENT} moved"
         log "$(/usr/bin/ls -l ${ATTACHMENT})"
    fi
done

# process all webdrops

FILENAME=$(new_name $RAM/IN "asc")
for DROP in $(/usr/bin/ls ${RAM}/TAR/drop*)
do
     # delet last line "."
     /usr/bin/sed -i '$d' ${DROP}
     /usr/bin/mv ${DROP} $RAM/IN/${FILENAME}
     ${CBHOME}/safewebdrop/bin/processmessage-safewebdrop $RAM/IN/${FILENAME}
     FILENAME=$(new_name $RAM/IN "asc")
done

# remove all stored tarballs if MAXTARBALL is exceeded
NUM=$(/usr/bin/ls ${RAM}/tarball-* | /usr/bin/wc -l 2>/dev/null)
if (( $NUM > $MAXTARBALL)) ; then
     /usr/bin/rm -f ${RAM}/tarball-?*
fi

# finally move the tarball into $RAM
/usr/bin/mv  ${INFILE} "${RAM}/tarball-$(/usr/bin/date +%y.%m.%d-%H.%M)" 2> /dev/null
/usr/bin/chmod 600 "${RAM}/tarball-$(/usr/bin/date +%y.%m.%d-%H.%M)"

exit 0

#--------------------------------------------------------------#