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 require '/var/ipfire/general-functions.pl';
  28
  29 my %proxysettings=();
  30 &General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
  31
  32 # define here your redirectors (use a comma sperated list)
  33 my @redirectors = "";
  34 if ( $proxysettings{'ENABLE_FILTER'} eq 'on' && -e '/usr/bin/squidGuard' ){push(@redirectors,"/usr/bin/squidGuard"); }
  35 if ( $proxysettings{'ENABLE_CLAMAV'} eq 'on' && -e '/usr/bin/squidclamav' ){ push(@redirectors,"/usr/bin/squidclamav"); }
  36 if ( $proxysettings{'ENABLE_UPDXLRATOR'} eq 'on' && -e '/usr/sbin/updxlrator' ) { push(@redirectors,"/usr/sbin/updxlrator"); }
  37
  38 #my $redirectors = [ '/usr/bin/squidclamav', '/usr/bin/squidGuard', '/usr/sbin/updxlrator' ];
  39
  40 # Attention: keep in mind that the order of your redirectors is important.
  41 # It doesn't make sense to scan for viruses on pages you restrict access to...
  42 # So place first your tools which restrict access, then the tools which do the
  43 # content filtering!
  44
  45 #print "Anzahl ".$#redirectors."\n";
  46
  47 ##### no need to change anything below this line #####
  48
  49 # init
  50 $| = 1;
  51 STDOUT->autoflush(1);
  52 my $line;
  53 my $return;
  54 my $i;
  55
  56 # open progamms
  57 my $pidlist = [];
  58 my $rlist = [];
  59 my $wlist = [];
  60 for($i = 1; $i <= $#redirectors; $i++) {
  61                           #print "i=".$i." redirector ".$redirectors[$i]."\n";
  62         $pidlist->[$i] = open2($rlist->[$i], $wlist->[$i], $redirectors[$i] );
  63 }
  64
  65 # wait for data...
  66 while($line = <>) {
  67         for($i = 1; $i <= $#redirectors; $i++) {
  68                 $wlist->[$i]->print($line);
  69                 $return = $rlist->[$i]->getline;
  70                 last if($return ne "\n" and $return ne $line);
  71                                                                 # break if redirector changes data
  72         }
  73         print $return;
  74 }
  75 exit 0;