config/urlfilter/redirect_wrapper

   1 #!/usr/bin/perl
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2007  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 # Based on Steffen Schoch (sschoch@users.sourceforge.net)                     #
  21 #                                                                             #
  22 ###############################################################################
  23
  24 use strict;
  25 use IPC::Open2;
  26 use IO::Handle;
  27
  28 # define here your redirectors (use a comma sperated list)
  29 my $redirectors = [ '/usr/bin/squidGuard', '/usr/sbin/updxlrator' ];
  30
  31 # Attention: keep in mind that the order of your redirectors is important.
  32 # It doesn't make sense to scan for viruses on pages you restrict access to...
  33 # So place first your tools which restrict access, then the tools which do the
  34 # content filtering!
  35
  36
  37 ##### no need to change anything below this line #####
  38
  39 # init
  40 $| = 1;
  41 STDOUT->autoflush(1);
  42 my $line;
  43 my $return;
  44 my $i;
  45
  46 # open progamms
  47 my $pidlist = [];
  48 my $rlist = [];
  49 my $wlist = [];
  50 for($i = 0; $i < @$redirectors; $i++) {
  51         $pidlist->[$i] = open2($rlist->[$i], $wlist->[$i], $redirectors->[$i]);
  52 }
  53
  54 # wait for data...
  55 while($line = <>) {
  56         for($i = 0; $i < @$redirectors; $i++) {
  57                 $wlist->[$i]->print($line);
  58                 $return = $rlist->[$i]->getline;
  59                 last if($return ne "\n" and $return ne $line);
  60                                                                 # break if redirector changes data
  61         }
  62         print $return;
  63 }
  64 exit 0;