#!/bin/bash

#parse-query 
# Copyright 2007  Chris F.A. Johnson
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# rebuilt by gunstick 2012 (http://cfajohnson.com/shell/articles/parse-query/ is non working version)

parse_query() #@ USAGE: parse_query var ...
{
    local var val
    local IFS='&'
    vars="&$*&"
    [ "$REQUEST_METHOD" = "POST" ] && read QUERY_STRING
    set -f
    for item in $QUERY_STRING
    do
      var=${item%%=*}
      val=${item#*=}
      val=${val//+/ }
#      case $vars in
#          *"&$var&"* )
              case $val in
                  *%[0-9a-fA-F][0-9a-fA-F]*)
                       val=$( printf "%b" "${val//\%/\\x}." )
                       val=${val%.}
                       #printf -v val "%b" "${val//\%/\\x}"
                       ;;
              esac
              val="$(echo "$val"|tr -d '\r')"
              eval "FORM_$var=\$val"
              # create var for use in form fields
              val="$(echo "$val"|sed 's/&/\&#38/g;s/"/\&#34;/g;s/</\&#60;/g')"
              eval "FORM_f_$var=\$val"
#              ;;
#      esac
    done
    set +f
}