functions.logging

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2010  Michael Tremer & Christian Schmidt                      #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 if [ -z "${LOG_FACILITY}" ]; then
  23         LOG_FACILITY="network"
  24 fi
  25
  26 LOG_LEVEL="DEBUG"
  27
  28 if [ -z "${LOG_DISABLE_STDOUT}" ]; then
  29         LOG_DISABLE_STDOUT=false
  30 fi
  31
  32 function log() {
  33         local level=${1}
  34         shift
  35         local message="$@"
  36         local message_log="${message}"
  37
  38         if [ -z "${DEBUG}" ] && [ "${level}" = "DEBUG" ]; then
  39                 return
  40         fi
  41
  42         local funcname="${FUNCNAME[1]}"
  43         message_log="${funcname}: ${message_log}"
  44
  45         # Set a prefix if we are in a hook.
  46         if [ -n "${HOOK}" ]; then
  47                 message_log="${HOOK}: ${message_log}"
  48         fi
  49
  50         logger -t "${LOG_FACILITY}[$$]" "${message_log}" &
  51
  52         # Leave here, when there should be no output on the console.
  53         [ "${LOG_DISABLE_STDOUT}" = "true" ] && return 0
  54
  55         local colour
  56         local console="2"
  57         case "${level}" in
  58                 DEBUG)
  59                         colour="${CLR_CYAN_R}"
  60                         ;;
  61                 INFO)
  62                         console="1"
  63                         ;;
  64                 WARNING)
  65                         colour="${CLR_YELLOW_R}"
  66                         ;;
  67                 CRITICAL|ERROR)
  68                         colour="${CLR_RED_B}"
  69                         ;;
  70         esac
  71
  72         case "${console}" in
  73                 1)
  74                         printf "${colour}${message}${CLR_RESET}\n"
  75                         ;;
  76                 2)
  77                         printf "${colour}${message}${CLR_RESET}\n" >&2
  78                         ;;
  79         esac
  80 }