#! /bin/bash

set -e
set -u

# read burp client config files
# if file include "warn", then check last backup date
# if older than "warn" send message to "email"
not_found=1
too_old=2
source <(grep clientconfdir /etc/burp/burp-server.conf | sed 's/ *= */=/g')

function mail_error {
  user=$1
  code=$2
  fileage=$3
  case $code in
  ($not_found):
    echo "timestamp file for $user not found or not readable" | mail -s "backup error" rscj@opendoor.fr
    exit $code
    ;;
  ($too_old):
    echo -e "Bonjour,\n\nVotre poste n'a pas été sauvegardé depuis $fileage jours.\n\nPensez à laisser votre pc allumé et connecté ce soir, afin que la sauvegarde puisse se faire correctement. \n\nN'hésitez pas à me contacter si le problème persiste ou pour plus de renseignement.\n\n---\nThomas Constans\nthomas@opendoor.fr\n" | mail -s "Pb de sauvegarde" $user
  esac
}

for file in $clientconfdir/* ; do
	if [ ! -f $file ] ; then continue ; fi
	if ( ! grep -q warn $file ) ; then continue ; fi
	maxage=$(awk -F= '/warn/{print $2}' $file)
	mail=$(awk -F= '/mail/{print $2}' $file)
	userdir=$(awk -F= '/directory/{print $2}' $file)
	userdir=${userdir}/$(basename $file)
	timestampfile=${userdir}/current/timestamp
	let "maxage=$maxage*86400"
	#test -r $timestampfile || { mail_error $mail $not_found ; continue ; }
	test -r $timestampfile || { echo $mail $not_found ; continue ; }


	fileage=$( stat -c '%Y' $timestampfile)
	now=$(date "+%s")
	let "delta=$now-$fileage"
	if [ $delta -gt $maxage ] ; then
		echo $mail $too_old $(($delta/86400))
		mail_error $mail $too_old $(($delta/86400))
	fi
done

#while read userdir mail maxage ; do
#   if [[ $userdir =~ ^# ]] ; then continue ; fi
#  timestampfile=${userdir}/current/timestamp
#  let "maxage=$maxage*86400"
#  test -r $timestampfile || { mail_error $mail $not_found ; continue ; }
#
#  fileage=$( stat -c '%Y' $timestampfile)
#  now=$(date "+%s")
#  let "delta=$now-$fileage"
#  if [ $delta -gt $maxage ] ; then
#    echo $mail $too_old $(($delta/86400))
#  fi
#done < $1