#!/bin/sh
##------------------------------------------------------------------------------
## c3Surf - login for services                                      __FLI4LVER__
##
## Creation:    07.01.2008 Frank Saurbier - c3Surf@arcor.de
## Last Update: $Id$
##
## Copyright (c) 2008-2010 - Frank Saurbier <c3surf@arcor.de>
## Copyright (c) 2010-2016 - Frank Saurbier, fli4l-Team <team@fli4l.de>
##
## Licence and conditions look at ~/config/c3surf.txt
##-------------------------------------------------------------------------------

#----------------------------------------------------------------------------
# c3surf_voucher ist Aktiv
#----------------------------------------------------------------------------
#if [ "$OPT_C3SURF" = yes -a "$OPT_C3SURF_VOUCHER" = yes -a "$OPT_LOGINUSR" = yes ]
#if [ "$OPT_C3SURF_VOUCHER" = yes ]
if [ "$OPT_C3SURF" = yes -a "$OPT_C3SURF_VOUCHER" = yes -a "$OPT_LOGINUSR" = yes ]
then
  # for Debug
  begin_script C3SURF_VOUCHER "starting c3surf_voucher rc file ..."

    #----------------------------------------------------------------------------
    # c3surf-optional parameters to default
    #----------------------------------------------------------------------------
    : ${C3SURF_VOUCHER_PRTUPDATE:=no}
    : ${C3SURF_VOUCHER_USRLEN:=12}
    : ${C3SURF_VOUCHER_USRCAP:=random}
    : ${C3SURF_VOUCHER_PWDLEN:=6}
    : ${C3SURF_VOUCHER_PWDMOD:=3}
    : ${C3SURF_VOUCHER_PWDCAP:=random}

    #----------------------------------------------------------------------------
    # c3surf parameter check
    #----------------------------------------------------------------------------
    if [ $C3SURF_VOUCHER_USRLEN -gt 16 ]
    then
      C3SURF_VOUCHER_USRLEN=16
    fi
    if [ $C3SURF_VOUCHER_USRLEN -lt 1 ]
    then
      C3SURF_VOUCHER_USRLEN=1
    fi

    if [ $C3SURF_VOUCHER_PWDLEN -gt 12 ]
    then
      C3SURF_VOUCHER_PWDLEN=12
    fi
    if [ $C3SURF_VOUCHER_PWDLEN -lt 1 ]
    then
      C3SURF_VOUCHER_PWDLEN=1
    fi

    if [ $C3SURF_VOUCHER_PWDMOD -gt 5 ]
    then
      C3SURF_VOUCHER_PWDMOD=5
    fi
    if [ $C3SURF_VOUCHER_PWDMOD -lt 1 ]
    then
      C3SURF_VOUCHER_PWDMOD=1
    fi

    #-------------------------------------------------------------------------
    # c3surf_voucher: write the config-vars - to c3surf.conf !
    #----------------------------------------------------------------------------
    {
      # kleiner header
      #
      #echo "# -----------------------------------------"
      #echo "# this is the c3surf config - do not modify"
      #echo "# (c) 2008  Frank Saurbier, c3surf@arcor.de"
      #echo "# -----------------------------------------"
      #
      # values from the config/c3surf.txt that c3surf scripts need are listed here
      #
      echo "OPT_C3SURF_VOUCHER='$OPT_C3SURF_VOUCHER'"
      echo "C3SURF_VOUCHER_N='$C3SURF_VOUCHER_N'"
      for idx in `seq 1 $C3SURF_VOUCHER_N`
      do
        eval my_var='$C3SURF_VOUCHER_'$idx'_TIME'
        echo "C3SURF_VOUCHER_TIME_$idx='$my_var'"
        eval my_var='$C3SURF_VOUCHER_'$idx'_DAYS'
        echo "C3SURF_VOUCHER_DAYS_$idx='$my_var'"
        eval my_var='$C3SURF_VOUCHER_'$idx'_COUNT'
        echo "C3SURF_VOUCHER_COUNT_$idx='$my_var'"
        # optional voucher live time, default=0
        eval my_var='$C3SURF_VOUCHER_'$idx'_LIVES'
        if [ -z "$my_var" ]
        then
          my_var=0
        fi
        echo "C3SURF_VOUCHER_LIVES_$idx='$my_var'"
      done
      echo "C3SURF_VOUCHER_USRLEN='$C3SURF_VOUCHER_USRLEN'"
      echo "C3SURF_VOUCHER_USRCAP='$C3SURF_VOUCHER_USRCAP'"
      echo "C3SURF_VOUCHER_PWDLEN='$C3SURF_VOUCHER_PWDLEN'"
      echo "C3SURF_VOUCHER_PWDMOD='$C3SURF_VOUCHER_PWDMOD'"
      echo "C3SURF_VOUCHER_PWDCAP='$C3SURF_VOUCHER_PWDCAP'"
      echo "C3SURF_VOUCHER_PRINTFILE='$C3SURF_PERSISTENT_PATH/c3surf_voucher.txt'"
      echo "C3SURF_VOUCHER_PRTUPDATE='$C3SURF_VOUCHER_PRTUPDATE'"
    } >> /var/run/c3surf.conf


    # -------------------------------------------------------------------------
    # init random generator
    # -------------------------------------------------------------------------
#    # echo "Initializing random number generator..."
#    random_seed=/var/run/random-seed
#    # Carry a random seed from start-up to start-up
#    # Load and then save the whole entropy pool
#    if [ -f $random_seed ]; then
#        cat $random_seed >/dev/urandom
#    else
#        > $random_seed
#    fi
#    chmod 600 $random_seed
#    poolfile=/proc/sys/kernel/random/poolsize
#    [ -r $poolfile ] && bytes=`cat $poolfile` || bytes=512
#    dd if=/dev/urandom of=$random_seed count=1 bs=$bytes

    # -------------------------------------------------------------------------
    # put voucher password to .htpasswd
    # -------------------------------------------------------------------------
        # Make passwords for all users and make a TMP copy (prevents disk wakeup)
        # delete expired vouchers
        now_ts=$(/bin/date +%s)
        for f in "$C3SURF_PERSISTENT_PATH"/*.data-voucher
        do
          # schließe den Abfrage-String aus
          if [ "$f" != "$C3SURF_PERSISTENT_PATH/*.data-voucher" ]
          then
            # delete all old values
            # unset fsid fspw fsname fsvorname fsmail fssecs fsblocksecs fscounter fstime fsblocktime fsmodule fsvalid
            unset fsid fspw fsvalid
            # initialize the user vars
            . "$f"
            if [ -n "$fsvalid" -a $fsvalid != 0 -a $fsvalid -lt $now_ts ]
            then
            #  if [ "$fsmodule" = "voucher" ]
            #  then
                rm -f "$f"
            #  fi
            else
              if [ -n "$fspw" ]
              then
                echo "$fsid:$fspw" >> /srv/www/c3surf/login/.htpasswd
              fi
            fi
          fi
        done

      #-------------------------------------------------
      # Option C3SURF_WORKON_TMP for Vouchers
      #-------------------------------------------------
      if [ "$C3SURF_WORKON_TMP" = "yes" ]
      then
        # voucher data
        if [ "$OPT_LOGINUSR" = "yes" ]
        then
          cp -f "$C3SURF_PERSISTENT_PATH/"*.data-voucher "$C3SURF_TMP_PATH" 2>/dev/null
        fi
      fi

    #----------------------------------------------------------
    # set crontab vars
    #----------------------------------------------------------
    if [ -z "$C3SURF_VOUCHER_DEL_CRON" ]
    then
      C3SURF_VOUCHER_DEL_CRON='0 4 * * *'
    fi
    if [ -z "$C3SURF_VOUCHER_GEN_CRON" ]
    then
      C3SURF_VOUCHER_GEN_CRON='15 4 * * *'
    fi

    #----------------------------------------------------------
    # Eintrag in crontab vocher delete and voucher generate
    #----------------------------------------------------------
    if [ "$C3SURF_VOUCHER_DEL_CRON" != "never" ]
    then
      add_crontab_entry "$C3SURF_VOUCHER_DEL_CRON" "/usr/local/bin/c3surf_voucher_del.sh"
    fi
    if [ "$C3SURF_VOUCHER_GEN_CRON" != "never" ]
    then
      add_crontab_entry "$C3SURF_VOUCHER_GEN_CRON" "/usr/local/bin/c3surf_voucher_gen.sh"
    fi

  end_script
fi
# ----------------------------------------------------------------------------
# c3surf -- ENDE ---
# ----------------------------------------------------------------------------