#!/usr/bin/env bash


script_dir="$(realpath $(dirname $0))"
script_name="$(basename "$0")"

conf_file="${script_dir}/conf/install_amavis.conf"

backup_date="$(date +%Y-%m-%d-%H%M)"
crontab_backup_file="${script_dir}/crontab-root-${backup_date}"

log_file=$(mktemp)

# -------------
# --- Some functions
# -------------
clean_up() {

   if [[ -f "$crontab_backup_file" ]]; then

      if $terminal ; then
         echo "   Reenable previously saved crontab from file:"§
         echo -en "      \033[1m$crontab_backup_file\033[m .."
      fi
      crontab $crontab_backup_file > $log_file 2>&1

      if [[ $? -eq 0 ]]; then
         echo_ok
      else
         echo_failed
         if [[ -n "$log_file" ]] ; then
            error "For more informations see log output at '$log_file'."
         fi
      fi

   fi

   # Perform program exit housekeeping
   rm -f $log_file
   blank_line
   exit $1
}

echononl(){
   if $terminal ; then

      echo X\\c > /tmp/shprompt$$
      if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
         echo -e -n "$*\\c" 1>&2
      else
         echo -e -n "$*" 1>&2
      fi
      rm /tmp/shprompt$$

   fi
}

fatal(){
   echo ""
   if $terminal ; then
      echo -e "   [ \033[31m\033[1mFatal\033[m ] $*"
   else
      echo -e "   [ Fatal ] $*"
   fi
   echo ""
   if $terminal ; then
      echo -e "             \033[1mScript terminated\033[m.."
   else
      echo -e "             Script terminated.."
   fi
   echo ""
   clean_up 1
}

error(){
   echo ""
   if $terminal ; then
      echo -e "   [ \033[31m\033[1mError\033[m ] $*"
   else
      echo "   [ Error ] $*"
   fi
   echo ""
}

warn (){
   if $terminal ; then
      echo ""
      echo -e "   [ \033[33m\033[1mWarning\033[m ]: $*"
      echo ""
   fi
}

info (){
   if $terminal ; then
      echo ""
      echo -e "   [ \033[32m\033[1mInfo\033[m ]: $*"
      echo ""
   fi
}

echo_done() {
   if $terminal ; then
      echo -e "\033[80G[ \033[32mdone\033[m ]"
   fi
}
echo_ok() {
   if $terminal ; then
      echo -e "\033[80G[ \033[32mok\033[m ]"
   fi
}
echo_warning() {
   if $terminal ; then
      echo -e "\033[80G[ \033[33m\033[1mwarn\033[m ]"
   fi
}
echo_failed(){
   if $terminal ; then
      echo -e "\033[80G[ \033[1;31mfailed\033[m ]"
   fi
}
echo_skipped() {
   if $terminal ; then
      echo -e "\033[80G[ \033[33m\033[1mskipped\033[m ]"
   fi
}

detect_os_1 () {

   if $(which lsb_release > /dev/null 2>&1) ; then

      os_dist="$(lsb_release -i | awk '{print tolower($3)}')"
      os_version="$(lsb_release -r | awk '{print tolower($2)}')"
      os_codename="$(lsb_release -c | awk '{print tolower($2)}')"

      if [[ "$os_dist" = "debian" ]]; then
         if $(echo "$os_version" | grep -q '\.') ; then
            os_version=$(echo "$os_version" | cut --delimiter='.' -f1)
         fi
      fi

   elif [[ -e "/etc/os-release" ]]; then

      . /etc/os-release

      os_dist=$ID
      os_version=${VERSION_ID}

   fi

   # remove whitespace from os_dist and os_version
   os_dist="${os_dist// /}"
   os_version="${os_version// /}"

}

blank_line() {
   if $terminal ; then
      echo ""
   fi
}

# ----------
# - Jobhandling
# ----------

# - Run 'clean_up' for signals SIGHUP SIGINT SIGTERM
# -
trap clean_up SIGHUP SIGINT SIGTERM


# ----------
# - Some checks ..
# ----------

# - Running in a terminal?
# -
if [[ -t 1 ]] ; then
   terminal=true
else
   terminal=false
fi

# - Is this a systemd system?
# -
if [[ "X`which systemd`" = "X" ]]; then
   systemd_exists=false
else
   systemd_exists=true
fi

# - Set variable
# -    os_dist
# -    os_version
# -    os_codename
# -
detect_os_1

if $terminal ; then
   clear
   echo ""
   echo -e "\033[1m----------\033[m"
   echo -e "\033[32m\033[1mRunning script \033[m\033[1m$script_name\033[32m .. \033[m"
   echo -e "\033[1m----------\033[m"
fi



# -------------
# --- Some default settings
# -------------

DEFAULT_INSTALL_CLAMAV_UNOFFICIAL_SIGS=true

DEFAULT_MALWARE_PATROL_IN_USE=true
DEFAULT_MALWERE_PATROL_FREE=false
DEFAULT_MP_RECEIPT_NUMBER=106015125438

DEFAULT_SECURITE_INFO_IN_USE=true
DEFAULT_SI_AUTHORISATION_SIGNATURE_WF=76ed7ca6670dbee497e1a0397a7e178c4caa25888bc26d7327d1eab0195342a4cfa522dcf10382623d57dbc2a79bd37627b9a52def4d4bfe617d26e35405ce3b
DEFAULT_SI_AUTHORISATION_SIGNATURE_OOPEN=b0b7e94d3fcc8f3b1f128edd5830392361868cf0174723a9924ac25bf8b1b588cb974b50234e1bc1d9839dfe0ca6e1627733d90daf1399347b1046d20c2e3a89

DEFAULT_HOSTNAME="$(hostname -f)"

blank_line
echononl "   Read Configuration \033[1m${conf_file}\033[m .."
if [[ -f "$conf_file" ]]; then
   source $conf_file > $log_file 2>&1
   if [[ $? -ne 0 ]]; then
      echo_failed
      fatal "$(cat "$log_file")"
   else
      echo_ok
   fi
else
   warn "No configuration file '$conf_file' present.\n
             Loading default values.."
fi

if [[ -z "$_HOSTNAME" ]] ; then
   _HOSTNAME="$(hostname -f)"
   _HOSTNAME_SHORT="$(hostname)"
   [[ "$_HOSTNAME" = "$_HOSTNAME_SHORT" ]] && _HOSTNAME=""
fi

# - Set defaul value for securite signature
# -
if [[ -z "$_SI_AUTHORISATION_SIGNATURE" ]]; then
   [[ "$_HOSTNAME" =~ warenform.de$ ]] && _SI_AUTHORISATION_SIGNATURE=$DEFAULT_SI_AUTHORISATION_SIGNATURE_WF

   # - For all this take O.OPEN's Signature
   # -
   [[ "$_HOSTNAME" =~ oopen.de$ ]] && _SI_AUTHORISATION_SIGNATURE=$DEFAULT_SI_AUTHORISATION_SIGNATURE_OOPEN
   [[ "$_HOSTNAME" =~ cadus.org$ ]] && _SI_AUTHORISATION_SIGNATURE=$DEFAULT_SI_AUTHORISATION_SIGNATURE_OOPEN
   [[ "$_HOSTNAME" =~ so36.net$ ]] && _SI_AUTHORISATION_SIGNATURE=$DEFAULT_SI_AUTHORISATION_SIGNATURE_OOPEN
   [[ "$_HOSTNAME" =~ interventionistische-linke.org$ ]] && _SI_AUTHORISATION_SIGNATURE=$DEFAULT_SI_AUTHORISATION_SIGNATURE_OOPEN

fi


if $terminal ; then

   echo "" 
   echo -e "\033[32m--\033[m" 
   echo "" 
   echo "Load MalwarePatrol Signatures (https://www.malwarepatrol.net)?" 
   echo "" 
   echo "Note: You have to sign up for an account. For a free account thats here:"
   echo "      https://www.malwarepatrol.net/signup-free.shtml"
   echo "" 
   if [[ -z "$_MALWARE_PATROL_IN_USE" ]]; then
      echononl "Load MalwarePatrol Singatures (yes/no): "
   else
      if $_MALWARE_PATROL_IN_USE ; then
         echononl "Load MalwarePatrol Singatures [yes]: "
      else
         echononl "Load MalwarePatrol Singatures [no]: "
      fi
   fi
   read _TMP_LOAD_MP
   _TMP_LOAD_MP=${_TMP_LOAD_MP,,}
   while [ "X$_TMP_LOAD_MP" != "Xyes" -a "X$_TMP_LOAD_MP" != "Xno" ]; do
      if [[ -z "$_MALWARE_PATROL_IN_USE" ]]; then
         echononl "Wrong entry! (yes/no): "
         read _TMP_LOAD_MP
         _TMP_LOAD_MP=${_TMP_LOAD_MP,,}
      else
         if [ "X$_TMP_LOAD_MP" != "Xyes" -a "X$_TMP_LOAD_MP" != "Xno" ]; then
            if [[ "X$_TMP_LOAD_MP" = "X" ]]; then
               if $_MALWARE_PATROL_IN_USE ; then
                  _TMP_LOAD_MP=yes
               else
                  _TMP_LOAD_MP=no
               fi
            else
               if $_MALWARE_PATROL_IN_USE ; then
                  echononl "Wrong entry! [yes]: "
               else
                  echononl "Wrong entry! [no]: "
               fi
               read _TMP_LOAD_MP
            fi

         fi
      fi
   done
   if [[ "$_TMP_LOAD_MP" = "yes" ]] ; then
      MALWARE_PATROL_IN_USE=true
   else
      MALWARE_PATROL_IN_USE=false
   fi

   if $MALWARE_PATROL_IN_USE ; then

      echo ""
      echo ""
      echo "Are you using a free account from MalwarePatrol?"
      echo ""
      echo ""

      if [[ -z "$_MALWERE_PATROL_FREE" ]] ; then
         echononl "   Using fgree acount from MalwarePatrol? (yes/no): "
      else
         if $_MALWERE_PATROL_FREE ; then
            echononl "Using free acount from MalwarePatrol? [yes]: "
         else
            echononl "Using free acount from MalwarePatrol? [no]: "
         fi
      fi
      read _TMP_FREE_MP
      _TMP_FREE_MP=${_TMP_FREE_MP,,}
      while [ "X$_TMP_FREE_MP" != "Xyes" -a "X$_TMP_FREE_MP" != "Xno" ]; do
         if [[ -z "$_MALWERE_PATROL_FREE" ]]; then
            echononl "Wrong entry! (yes/no): "
            read _TMP_FREE_MP
            _TMP_FREE_MP=${_TMP_FREE_MP,,}
         else
            if [ "X$_TMP_FREE_MP" != "Xyes" -a "X$_TMP_FREE_MP" != "Xno" ]; then
               if [[ "X$_TMP_FREE_MP" = "X" ]]; then
                  if $_MALWERE_PATROL_FREE ; then
                     _TMP_FREE_MP=yes
                  else
                     _TMP_FREE_MP=no
                  fi
               else
                  if $_MALWERE_PATROL_FREE ; then
                     echononl "Wrong entry! [yes]: "
                  else
                     echononl "Wrong entry! [no]: "
                  fi
                  read _TMP_FREE_MP
               fi
            fi
         fi
      done
      if [[ "$_TMP_FREE_MP" = "yes" ]] ; then
         MALWERE_PATROL_FREE=true
      else
         MALWERE_PATROL_FREE=false
      fi

      # - Set default Value for Malware Patrol serial number (if non free account in use)
      # -
      if ! $MALWERE_PATROL_FREE ; then
         [[ -z "$_MP_RECEIPT_NUMBER" ]] && _MP_RECEIPT_NUMBER="$DEFAULT_MP_RECEIPT_NUMBER"
      fi

      # - Set default Value for Malware Patrol serial number (if non free account in use)
      # -
      if ! $MALWERE_PATROL_FREE ; then
         [[ -z "$_MP_RECEIPT_NUMBER" ]] && _MP_RECEIPT_NUMBER="$DEFAULT_MP_RECEIPT_NUMBER"
      fi

      echo ""
      echo -e "\033[32m--\033[m"
      echo ""
      echo "Insert receipt number for MalwarePatrol Account"
      echo ""
      echo ""
      MP_RECEIPT_NUMBER=
      if [[ -n "$_MP_RECEIPT_NUMBER" ]] ; then
         while [[ "X$MP_RECEIPT_NUMBER" = "X" ]]; do
            echononl "MalwarePatrol receipt number [$_MP_RECEIPT_NUMBER]: "
            read MP_RECEIPT_NUMBER
            if [[ "X$MP_RECEIPT_NUMBER" = "X" ]]; then
                  MP_RECEIPT_NUMBER=$_MP_RECEIPT_NUMBER
               fi
         done
      else

         while [[ "X$MP_RECEIPT_NUMBER" = "X" ]]; do
            echononl "MalwarePatrol receipt number: "
            read MP_RECEIPT_NUMBER
            if [[ "X$MP_RECEIPT_NUMBER" = "X" ]]; then
               echo -e "\n\t\033[33m\033[1mMalwarePatrol receipt number is reqired\033[m\n"
            fi
         done
      fi


   fi


   echo "" 
   echo -e "\033[32m--\033[m" 
   echo "" 
   echo "Load SecuriteInfo Signatures (https://www.securiteinfo.com)?" 
   echo "" 
   echo "Note: You have to sign up for an account. For a free account thats here:"
   echo "      https://www.securiteinfo.com/clients/customers/signup"
   echo "" 
   if [[ -z "$_SECURITE_INFO_IN_USE" ]]; then
      echononl "Load SecuriteInfo Singatures (yes/no): "
   else
      if $_SECURITE_INFO_IN_USE ; then
         echononl "Load SecuriteInfo Singatures [yes]: "
      else
         echononl "Load SecuriteInfo Singatures [no]: "
      fi
   fi
   read _TMP_LOAD_SI
   _TMP_LOAD_SI=${_TMP_LOAD_SI,,}
   while [ "X$_TMP_LOAD_SI" != "Xyes" -a "X$_TMP_LOAD_SI" != "Xno" ]; do
      if [[ -z "$_SECURITE_INFO_IN_USE" ]]; then
         echononl "Wrong entry! (yes/no): "
         read _TMP_LOAD_SI
         _TMP_LOAD_SI=${_TMP_LOAD_SI,,}
      else
         if [ "X$_TMP_LOAD_SI" != "Xyes" -a "X$_TMP_LOAD_SI" != "Xno" ]; then
            if [[ "X$_TMP_LOAD_SI" = "X" ]]; then
               if $_SECURITE_INFO_IN_USE ; then
                  _TMP_LOAD_SI=yes
               else
                  _TMP_LOAD_SI=no
               fi
            else
               if $_SECURITE_INFO_IN_USE ; then
                  echononl "Wrong entry! [yes]: "
               else
                  echononl "Wrong entry! [no]: "
               fi
               read _TMP_LOAD_SI
            fi
         fi
      fi
   done
   if [[ "$_TMP_LOAD_SI" = "yes" ]] ; then
      SECURITE_INFO_IN_USE=true
   else
      SECURITE_INFO_IN_USE=false
   fi

   if $SECURITE_INFO_IN_USE ; then
      echo ""
      echo -e "\033[32m--\033[m"
      echo ""
      echo "Insert SecuriteInfo Authorisation Signature"
      echo ""
      echo ""
      SI_AUTHORISATION_SIGNATURE=
      if [[ -n "$_SI_AUTHORISATION_SIGNATURE" ]] ; then
         while [[ "X$SI_AUTHORISATION_SIGNATURE" = "X" ]]; do
            echononl "SecuriteInfo Authorisation Signature [$(echo ${_SI_AUTHORISATION_SIGNATURE:0:4})..$(echo ${_SI_AUTHORISATION_SIGNATURE: -4})]: "
            read SI_AUTHORISATION_SIGNATURE
            if [[ "X$SI_AUTHORISATION_SIGNATURE" = "X" ]]; then
                  SI_AUTHORISATION_SIGNATURE=$_SI_AUTHORISATION_SIGNATURE
               fi
         done
      else

         while [[ "X$SI_AUTHORISATION_SIGNATURE" = "X" ]]; do
            echononl "SecuriteInfo Authorisation Signature: "
            read SI_AUTHORISATION_SIGNATURE
            if [[ "X$SI_AUTHORISATION_SIGNATURE" = "X" ]]; then
               echo -e "\n\t\033[33m\033[1mSecuriteInfo Authorisation Signature is reqired\033[m\n"
            fi
         done
      fi
   fi

   echo ""
   echo ""
   echo -e "   Start script \033[32m\033[1m${script_name}\033[mi with settings:"
   echo ""

   echo -e "   Install Signatures from MalwarePatrol..: $MALWARE_PATROL_IN_USE"
   if $MALWARE_PATROL_IN_USE ; then
      echo -e "      Free MalwarePatrol account..........: $MALWERE_PATROL_FREE"
      echo -e "      MalwarePatrol receipt number........: $MP_RECEIPT_NUMBER"
   fi
   echo ""
   echo -e "   Install Signatures from SecuriteInfo...: $SECURITE_INFO_IN_USE"
   if $SECURITE_INFO_IN_USE ; then
      echo -e "      SecuriteInfo auth signature.........: $(echo ${SI_AUTHORISATION_SIGNATURE:0:4})..$(echo ${SI_AUTHORISATION_SIGNATURE: -4})"
   fi

   echo ""
   echononl "Continue with this parameters? [\033[1myes/no\033[m]: "
   read OK
   while [[ "${OK,,}" != "yes" ]] && [[ "${OK,,}" != "no" ]] ; do
      echononl "\033[33mWrong entry!\033[m [\033[1myes/no\033[m]: "
      read OK
   done
   [[ "${OK,,}" = "yes" ]] || fatal "Canceled by user input."

else

   if [[ -z "$_MALWARE_PATROL_IN_USE" ]] ; then
      MALWARE_PATROL_IN_USE=$DEFAULT_MALWARE_PATROL_IN_USE
   else
      MALWARE_PATROL_IN_USE=$_MALWARE_PATROL_IN_USE
   fi
   if [[ -z "$_MALWERE_PATROL_FREE" ]] ;then
      MALWERE_PATROL_FREE=$DEFAULT_MALWERE_PATROL_FREE
   else
      MALWERE_PATROL_FREE=$_MALWERE_PATROL_FREE
   fi

   if ! $MALWERE_PATROL_FREE ; then
      if [[ -z "$_MP_RECEIPT_NUMBER" ]] ; then
         MP_RECEIPT_NUMBER="$DEFAULT_MP_RECEIPT_NUMBER"
      else
         MP_RECEIPT_NUMBER=$_MP_RECEIPT_NUMBER
      fi
   fi


   if [[ -z "$_SECURITE_INFO_IN_USE" ]]; then
      if $DEFAULT_SECURITE_INFO_IN_USE ; then
         SECURITE_INFO_IN_USE=true
      else
         SECURITE_INFO_IN_USE=false
      fi
   else
      SECURITE_INFO_IN_USE=$_SECURITE_INFO_IN_USE

   fi

   if $SECURITE_INFO_IN_USE ; then
      if [[ -z "${_SI_AUTHORISATION_SIGNATURE}" ]]; then
         fatal "SecuriteInfo Signatures should be used but an authorization code is not available!"
      else
         SI_AUTHORISATION_SIGNATURE="${_SI_AUTHORISATION_SIGNATURE}"
      fi
   fi

   #echo ""
   #echo "MALWARE_PATROL_IN_USE:        $MALWARE_PATROL_IN_USE"
   #echo "MALWERE_PATROL_FREE:          $MALWERE_PATROL_FREE"
   #echo "MP_RECEIPT_NUMBER:            $MP_RECEIPT_NUMBER"
   #echo ""
   #echo "SECURITE_INFO_IN_USE:         $SECURITE_INFO_IN_USE"
   #echo "SI_AUTHORISATION_SIGNATURE:   $SI_AUTHORISATION_SIGNATURE"
   #echo ""
fi


if $terminal ; then
   echo
   echo -e "\033[37m\033[1mSome pre-installation tasks..\033[m"
   echo
fi

# - Synchronise package index files with the repository
# -
echononl "   Synchronise package index files with the repository.."
apt-get update > "$log_file" 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed
   error "$(cat $log_file)"
fi


echononl "   Install (debian package) socat"
_pkg=socat
if aptitude search " $_pkg " | grep " $_pkg " | grep -e "^i" > /dev/null 2>&1 ; then
   echo_skipped
else
   DEBIAN_FRONTEND=noninteractive apt-get -y install $_pkg > /dev/null 2> $log_file
   if [[ $? -eq 0 ]] ; then
      echo_ok
   else
      echo_failed
      error "$(cat $log_file)"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
      fi
fi

echononl "   Install CPAN Module IO::Socket::UNIX"
_module="IO::Socket::UNIX"
cpanm -q --skip-installed $_module > $log_file 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed
   error "$(cat $log_file)

                  command was: 
                  cpanm -q --skip-installed $_module"

   echononl "continue anyway [yes/no]: "
   read OK
   OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
   while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
      echononl "Wrong entry! - repeat [yes/nno]: "
      read OK
   done
   [[ $OK = "yes" ]] || fatal "Abbruch durch User"
fi


echononl "   Backup crontab"
crontab -u root -l > $crontab_backup_file 2> $log_file
if [[ "$?" = "0" ]]; then
   echo_ok
else
   echo_failed
   error "$(cat $log_file)"
fi

echononl "   Disable crontab for user root"
crontab -r -u root > $log_file  2>&1
if [[ "$?" = "0" ]]; then
   echo_ok
else
   echo_failed
   error "$(cat $log_file)"
fi

echononl "   Backup directory '/etc/clamav-unofficial-sigs' .."
if [[ -d "/etc/clamav-unofficial-sigs" ]]; then
   mv "/etc/clamav-unofficial-sigs" "/etc/clamav-unofficial-sigs.BAK.${backup_date}" > $log_file 2>&1
   if [[ $? -eq 0 ]] ; then
      echo_ok
   else
      echo_failed
      error "$(cat $log_file)"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
   fi
else
   echo_skipped
fi


if $terminal ; then
   echo ""
   echo -e "   \033[37m\033[1mUpdate / Install (Update) ClamAV Unofficial Signatures..\033[m"
fi


echononl "   Cloning repository \"clamav-unofficial-sigs.git\".."
installation_failed=false
if [[ -d "/tmp/clamav-unofficial-sigs" ]]; then
   rm -rf "/tmp/clamav-unofficial-sigs" > $log_file 2>&1
   if [[ "$?" -ne 0 ]] ; then
      installation_failed=true
      error "$(cat $log_file)"
   fi
fi
git clone https://github.com/extremeshok/clamav-unofficial-sigs.git /tmp/clamav-unofficial-sigs > $log_file 2>&1
if [[ "$?" -ne 0 ]] ; then
   installation_failed=true
   error "$(cat $log_file)"
fi
if ! $installation_failed ; then
   echo_ok
fi

echononl "   Copy \"clamav-unofficial-sigs.sh\" to /usr/local/sbin/"
cp -a /tmp/clamav-unofficial-sigs/clamav-unofficial-sigs.sh /usr/local/sbin/ > $log_file 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed
   error "$(cat $log_file)"

   echononl "continue anyway [yes/no]: "
   read OK
   OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
   while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
      echononl "Wrong entry! - repeat [yes/nno]: "
      read OK
   done
   [[ $OK = "yes" ]] || fatal "Abbruch durch User"
fi

echononl "   Make /usr/local/sbin/clamav-unofficial-sigs.sh executable"
chmod 755 /usr/local/sbin/clamav-unofficial-sigs.sh > $log_file 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed
   error "$(cat $log_file)"

   echononl "continue anyway [yes/no]: "
   read OK
   OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
   while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
      echononl "Wrong entry! - repeat [yes/nno]: "
      read OK
   done
   [[ $OK = "yes" ]] || fatal "Abbruch durch User"
fi


echononl "   Check if working directory for 'urlhaus' will be created if not exists.."
_clamav_script="/usr/local/sbin/clamav-unofficial-sigs.sh"
if ! $(grep -q -E "^\s*xshok_mkdir_ownership\s+\"\\\$work_dir_urlhaus\""  "${_clamav_script}" 2> /dev/null) ; then

   if $(grep -q -E "^\s*xshok_mkdir_ownership\s+\"\\\$work_dir\"" "${_clamav_script}" 2> /dev/null) ; then
      
      perl -i -n -p \
            -e "s#(\s*xshok_mkdir_ownership\s+)(\"\\\$work_dir\")#\1\2\n\1\"\\\$work_dir_urlhaus\"#" \
            "${_clamav_script}" > $log_file 2>&1

      if [[ $? -eq 0 ]] ; then
         echo_ok
      else
         echo_failed
         error "$(cat $log_file)"

         echononl "continue anyway [yes/no]: "
         read OK
         OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
         while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
            echononl "Wrong entry! - repeat [yes/nno]: "
            read OK
         done
         [[ $OK = "yes" ]] || fatal "Abbruch durch User"
      fi

   else
      echo_skipped
   fi
else
   echo_skipped
fi

_create_dirs="/var/log/clamav-unofficial-sigs /etc/clamav-unofficial-sigs"
for _create_dir in $_create_dirs ; do
   echononl "   Create directory \"${_create_dir}\""
   if [[ -d "$_create_dir" ]]; then
      echo_skipped
   else
      mkdir "$_create_dir" > $log_file 2>&1
      if [[ $? -eq 0 ]] ; then
         echo_ok
      else
         echo_failed
         error "$(cat $log_file)"

         echononl "continue anyway [yes/no]: "
         read OK
         OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
         while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
            echononl "Wrong entry! - repeat [yes/nno]: "
            read OK
         done
         [[ $OK = "yes" ]] || fatal "Abbruch durch User"
      fi
   fi
done

echononl "   Copy Configuration files to /etc/clamav-unofficial-sigs"
cp -a /tmp/clamav-unofficial-sigs/config/* /etc/clamav-unofficial-sigs > $log_file 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed
   error "$(cat $log_file)"

   echononl "continue anyway [yes/no]: "
   read OK
   OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
   while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
      echononl "Wrong entry! - repeat [yes/nno]: "
      read OK
   done
   [[ $OK = "yes" ]] || fatal "Abbruch durch User"
fi

echononl "   Copy readme file 'INSTALL' into '/etc/clamav-unofficial-sigs/'.."
if [[ -f "/tmp/clamav-unofficial-sigs/INSTALL" ]]; then
   cp -a /tmp/clamav-unofficial-sigs/INSTALL /etc/clamav-unofficial-sigs/INSTALL > $log_file 2>&1

   if [[ $? -eq 0 ]] ; then
      echo_ok
   else
      echo_failed
      error "$(cat $log_file)"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
   fi

elif [[ -f "/tmp/clamav-unofficial-sigs/INSTALL.md" ]]; then
   cp -a /tmp/clamav-unofficial-sigs/INSTALL.md /etc/clamav-unofficial-sigs/INSTALL.md > $log_file 2>&1

   if [[ $? -eq 0 ]] ; then
      echo_ok
   else
      echo_failed
      error "$(cat $log_file)"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
   fi

else
   echo_skipped
fi



if [[ "${os_dist,,}" = "debian" ]] ; then

   ## - For Debian Jessie (Debian 8) // Stretch (Debian 9) // Buster (Debian 10) // Bullseye (Debian 11)
   ## -
   _failed=false
   echononl "   At directory /etc/clamav-unofficial-sigs copy os.debian${os_version}.conf to os.conf"
   if [[ ! -f /etc/clamav-unofficial-sigs/os/os.debian${os_version}.conf ]] ; then
      _tmp_version=$(expr $os_version - 1)
      if [[ -f "/etc/clamav-unofficial-sigs/os/os.debian${_tmp_version}.systemd.conf" ]] ; then
         cp "/etc/clamav-unofficial-sigs/os/os.debian${_tmp_version}.systemd.conf" \
            "/etc/clamav-unofficial-sigs/os.conf" > $log_file 2>&1
         if [[ $? -ne 0 ]]; then
            echo "Error copying /etc/clamav-unofficial-sigs/os.debian${os_version}.systemd.conf" >> $log_file
            _failed=true
         fi
      else
         if [[ -f "/etc/clamav-unofficial-sigs/os/os.debian.conf" ]] ; then
            cp "/etc/clamav-unofficial-sigs/os/os.debian.conf" \
               "/etc/clamav-unofficial-sigs/os.conf" > $log_file 2>&1
            if [[ $? -ne 0 ]]; then
               _failed=true
            fi
         else
            _failed=true
         fi
      fi
   else
      cp "/etc/clamav-unofficial-sigs/os/os.debian${os_version}.conf" \
         "/etc/clamav-unofficial-sigs/os.conf" > $log_file 2>&1
      if [[ $? -ne 0 ]]; then
         _failed=true
      fi
   fi
   if ! $_failed ; then
      echo_ok
   else
      echo_failed
      error "$(cat $log_file)"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
   fi

   ## - Edit /etc/clamav-unofficial-sigs/os.conf and make changes if needed
   ## -
   ## - Maybe the following changes are needed:
   ## -    clam_user="clamav"
   ## -    clam_group="clamav"
   ## -
   ## -    clamd_pid="/var/run/clamav/clamd.pid"
   ## -
   ## -    clamd_restart_opt="systemctl restart clamav-daemon"
   ## -    clamd_reload_opt="systemctl reload clamav-daemon"
   ## - or if debian 7
   ## -    clamd_restart_opt="service clamav-daemon restart"
   ## -    clamd_reload_opt="service clamav-daemon reload"
   ## -
   ## -    clamd_socket="/var/run/clamav/clamd.ctl"
   ## -
   echononl "   Adjust /etc/clamav-unofficial-sigs/os.conf"
   installation_failed=false
   perl -i -n -p -e "s#^([ ]*\ *)(clam_user=.*)#\#\#\1\2\nclam_user=\"clamav\"#" \
      /etc/clamav-unofficial-sigs/os.conf > $log_file 2>&1
   if [[ "$?" -ne 0 ]] ; then
      installation_failed=true
      error "$(cat $log_file)"
   fi
   perl -i -n -p -e "s#^([ ]*\ *)(clam_group=.*)#\#\#\1\2\nclam_group=\"clamav\"#" \
      /etc/clamav-unofficial-sigs/os.conf > $log_file 2>&1
   if [[ "$?" -ne 0 ]] ; then
      installation_failed=true
      error "$(cat $log_file)"
   fi

   if [[ "${os_dist,,}" = "debian" ]] && [[ "$os_version" -ge 10 ]]; then
      perl -i -n -p -e "s#^([ ]*\ *)(clamd_pid=.*)#\#\#\1\2\nclamd_pid=\"/run/clamav/clamd.pid\"#" \
         /etc/clamav-unofficial-sigs/os.conf > $log_file 2>&1
   else
      perl -i -n -p -e "s#^([ ]*\ *)(clamd_pid=.*)#\#\#\1\2\nclamd_pid=\"/var/run/clamav/clamd.pid\"#" \
         /etc/clamav-unofficial-sigs/os.conf > $log_file 2>&1
   fi
   if [[ "$?" -ne 0 ]] ; then
      installation_failed=true
      error "$(cat $log_file)"
   fi

   if $systemd_exists ; then
      perl -i -n -p -e "s#^([ ]*\#?\ *)(clamd_restart_opt=.*)#\#\#\1\2\nclamd_restart_opt=\"systemctl restart clamav-daemon\"\nclamd_reload_opt=\"systemctl reload clamav-daemon\"#" \
         /etc/clamav-unofficial-sigs/os.conf > $log_file 2>&1
      if [[ "$?" -ne 0 ]] ; then
         installation_failed=true
         error "$(cat $log_file)"
      fi
   else
      perl -i -n -p -e "s#^([ ]*\#?\ *)(clamd_restart_opt=.*)#\#\#\1\2\nclamd_restart_opt=\"service clamav-daemon restart\"\nclamd_reload_opt=\"service clamav-daemon reload\"#" \
         /etc/clamav-unofficial-sigs/os.conf > $log_file 2>&1
      if [[ "$?" -ne 0 ]] ; then
         installation_failed=true
         error "$(cat $log_file)"
      fi
   fi
   if [[ "${os_dist,,}" = "debian" ]] && [[ "$os_version" -ge 10 ]]; then
      perl -i -n -p -e "s#^([ ]*\#?\ *)(clamd_socket=.*)#\#\#\1\2\nclamd_socket=\"/run/clamav/clamd.ctl\"#" \
         /etc/clamav-unofficial-sigs/os.conf > $log_file 2>&1
   else
      perl -i -n -p -e "s#^([ ]*\#?\ *)(clamd_socket=.*)#\#\#\1\2\nclamd_socket=\"/var/run/clamav/clamd.ctl\"#" \
         /etc/clamav-unofficial-sigs/os.conf > $log_file 2>&1
   fi
   if [[ "$?" -ne 0 ]] ; then
      installation_failed=true
      error "$(cat $log_file)"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
   fi
   if ! $installation_failed ; then
      echo_ok
   fi

else

   error "Cannot create file 'os.conf' (No Linux Distribution detected)
                  See file /etc/clamav-unofficial-sigs/INSTALL to create it manually"

   echononl "continue anyway [yes/no]: "
   read OK
   OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
   while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
      echononl "Wrong entry! - repeat [yes/nno]: "
      read OK
   done
   [[ $OK = "yes" ]] || fatal "Abbruch durch User"

fi # if [[ "${os_dist,,}" = "debian" ]]


echononl "   Adjust /etc/clamav-unofficial-sigs/user.conf"

cat << EOF >> /etc/clamav-unofficial-sigs/user.conf 2> $log_file

# --------------------------------------
# --- Begin: User specific modifications
# --- Inserted by install-script "$(basename "$0")" at $(date +"%Y-%m-%d %H:%M")
EOF

if $MALWARE_PATROL_IN_USE || $SECURITE_INFO_IN_USE ; then

   if $MALWARE_PATROL_IN_USE ; then
   
      cat << EOF >> /etc/clamav-unofficial-sigs/user.conf 2> $log_file

malwarepatrol_receipt_code="$MP_RECEIPT_NUMBER"
malwarepatrol_list="clamav_basic"
EOF
      if [[ "$?" -ne 0 ]] ; then
         installation_failed=true
         error "$(cat $log_file)"
      fi


      if $MALWERE_PATROL_FREE ; then
         cat << EOF >> /etc/clamav-unofficial-sigs/user.conf 2> $log_file
malwarepatrol_product_code="8"
malwarepatrol_free="yes"
EOF
         if [[ "$?" -ne 0 ]] ; then
            installation_failed=true
            error "$(cat $log_file)"
         fi
      else
         cat << EOF >> /etc/clamav-unofficial-sigs/user.conf 2> $log_file
malwarepatrol_product_code="15"
malwarepatrol_free="no"
EOF
         if [[ "$?" -ne 0 ]] ; then
            installation_failed=true
            error "$(cat $log_file)"
         fi
      fi
   fi # if $MALWARE_PATROL_IN_USE

   if $SECURITE_INFO_IN_USE ; then
      cat << EOF >> /etc/clamav-unofficial-sigs/user.conf 2> $log_file
# - SecuriteInfo
# -
# -    type:     basic
# -    account:  ckubu@oopen.de
# -    signatur: abb4ec6b..46b59a4e
# -
# -    type:     professional
# -    account:  oo@oopen.de
# -    signatur: b0b7e94d..0c2e3a89
# -
securiteinfo_authorisation_signature="$SI_AUTHORISATION_SIGNATURE"
EOF
      if [[ "$?" -ne 0 ]] ; then
         installation_failed=true
         error "$(cat $log_file)"
      fi
   fi # if $SECURITE_INFO_IN_USE
fi #if $MALWARE_PATROL_IN_USE || $SECURITE_INFO_IN_USE
cat << EOF >> /etc/clamav-unofficial-sigs/user.conf 2> $log_file

# - Disable  Yara-Rule set, because (some?) pgp mails where blocked.
# -
yararulesproject_enabled="no"

user_configuration_complete="yes"

# --- End: User specific modifications"
# -------------------------------------
EOF
if [[ "$?" -ne 0 ]] ; then
   installation_failed=true
   error "$(cat $log_file)"
fi
if ! $installation_failed ; then
   echo_ok
else

   echononl "continue anyway [yes/no]: "
   read OK
   OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
   while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
      echononl "Wrong entry! - repeat [yes/nno]: "
      read OK
   done
   [[ $OK = "yes" ]] || fatal "Abbruch durch User"

fi


echononl "   Copy Systemd Configurations to /etc/systemd/system"
cp /tmp/clamav-unofficial-sigs/systemd/* /etc/systemd/system/ > $log_file 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed
   error "$(cat $log_file)"

   echononl "continue anyway [yes/no]: "
   read OK
   OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
   while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
      echononl "Wrong entry! - repeat [yes/nno]: "
      read OK
   done
   [[ $OK = "yes" ]] || fatal "Abbruch durch User"
fi

echononl "   Adjust /etc/systemd/system/clamav-unofficial-sigs.service"
perl -i -n -p -e "s#^([ ]*\ *)(ExecStart=.*)#\#\#\1\2\nExecStart=/usr/local/sbin/clamav-unofficial-sigs.sh#" \
   /etc/systemd/system/clamav-unofficial-sigs.service > $log_file 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed
   error "$(cat $log_file)"

   echononl "continue anyway [yes/no]: "
   read OK
   OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
   while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
      echononl "Wrong entry! - repeat [yes/nno]: "
      read OK
   done
   [[ $OK = "yes" ]] || fatal "Abbruch durch User"
fi


echononl "   Install Cron configs"
/usr/local/sbin/clamav-unofficial-sigs.sh --install-cron > $log_file 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed

   if $terminal ; then
      error "
$(cat $log_file)

                  command was: 
                  /usr/local/sbin/clamav-unofficial-sigs.sh --install-cron"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
      blank_line
      blank_line
   else
      error "Installing cron configuration FAILED!

$(cat $log_file)

             command was:
             /usr/local/sbin/clamav-unofficial-sigs.sh --install-cron"

   fi
fi

echononl "   Install logrotate configuration"
/usr/local/sbin/clamav-unofficial-sigs.sh --install-logrotate > $log_file 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed

   if $terminal ; then
      error "
$(cat $log_file)

                  command was:
                  /usr/local/sbin/clamav-unofficial-sigs.sh --install-logrotate"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
      blank_line
      blank_line
   else
      error "Installing logrotate configuration FAILED!

$(cat $log_file)

             command was:
             /usr/local/sbin/clamav-unofficial-sigs.sh --install-logrotate"

   fi
fi

echononl "   Install man (help) file"
/usr/local/sbin/clamav-unofficial-sigs.sh --install-man > $log_file 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed

   if $terminal ; then
      error "
$(cat $log_file)

                  command was:
                  /usr/local/sbin/clamav-unofficial-sigs.sh --install-man"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
      blank_line
      blank_line
   else
      error "Installing man (help) FAILED!

$(cat $log_file)

             command was:
             /usr/local/sbin/clamav-unofficial-sigs.sh --install-man"

   fi
fi

echononl "   Whitelist signature 'MBL_27966083'.."
echo "MBL_27966083" >> /var/lib/clamav/my_whitelist.ign2 2> $log_file
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed
   
   if $terminal ; then
      error "
$(cat $log_file)

                  command was:
                  echo \"MBL_27966083\" >> /var/lib/clamav/my_whitelist.ign2"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
      blank_line
      blank_line
   else
      error "Whitelisting signature 'MBL_27966083' FAILED!

$(cat $log_file)

             command was:
             echo \"MBL_27966083\" >> /var/lib/clamav/my_whitelist.ign2"

   fi
fi


if $terminal ; then
   echo "   First Usage to initialise ClamAV unofficial sigs"
   echo -n "     see /var/log/clamav-unofficial-sigs/clamav-unofficial-sigs.log"
fi
/usr/local/sbin/clamav-unofficial-sigs.sh > $log_file 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed

   if $terminal ; then
      error "
$(cat $log_file)

                  command was:
                  /usr/local/sbin/clamav-unofficial-sigs.sh"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
      blank_line
      blank_line
   else
      error "First Usage to initialise ClamAV unofficial sigs FAILED!

$(cat $log_file)

             command was:
             /usr/local/sbin/clamav-unofficial-sigs.sh"

   fi
fi


echononl "   Remove git repository /tmp/clamav-unofficial-sigs"
rm -rf /tmp/clamav-unofficial-sigs > $log_file 2>&1
if [[ $? -eq 0 ]] ; then
   echo_ok
else
   echo_failed

   if $terminal ; then
      error "$(cat $log_file)"

      echononl "continue anyway [yes/no]: "
      read OK
      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
         echononl "Wrong entry! - repeat [yes/nno]: "
         read OK
      done
      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
      blank_line
      blank_line
   else
      error "Removing git repository /tmp/clamav-unofficial-sigs FAILED!

$(cat $log_file)

             command was:
             rm -rf /tmp/clamav-unofficial-sigs"
   fi
fi


if $terminal ; then
   echo
   echo -e "\033[37m\033[1mSome post-update / post-installation tasks..\033[m"
   echo
fi

clean_up 0