#!/usr/bin/perl -w
#
#  Vidalia is distributed under the following license:
#
#  Copyright (C) 2006,  Matt Edman, Justin Hipple
#  Modified slightly by Sasha Romanosky
#
#  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 2
#  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, write to the Free Software
#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 
#  02110-1301, USA.
#
#  The GeoIP Perl  Library is licensed under the GPL.  For details
#  see the COPYING file.
#################################################################

use strict;
use Geo::IP;

my $VERSION = "05-06";
my $GEODATA = "/home/vidalia/geodata/GeoLiteCity-$VERSION.dat";
my $GI      = Geo::IP->open($GEODATA, GEOIP_STANDARD);

my $uri     = "";
my %fields  = ();
my @params  = ();

###############################################################
print "Content-type: text/plain\n\n";

# Parse the URI parameters
my $method = $ENV{"REQUEST_METHOD"};
if ($method eq "POST") {
  my $query = "";
  read(STDIN, $query, $ENV{'CONTENT_LENGTH'});
 
  # Request came in the form of a POST
  @params = split /&/, $query;
} elsif ($method eq "GET") {
  # Method is a GET request
  if ($ENV{"REQUEST_URI"} && $ENV{"REQUEST_URI"} =~/\?/) {
    ($uri = $ENV{"REQUEST_URI"}) =~ s/.*\?//g;
  }
  @params = split /&/, $uri;
} else {
  # It wasn't a GET or POST, so we'd better bail.
  print "Bad Request\n";
  exit 0;
}

# Parse the parameters and values
foreach (@params) {
  my ($key, $val) = split /=/, $_;
  $fields{$key} = $val;
}
 
# first build addr list
unless ($fields{"ip"}) {           
    # Get Geo info for requesting host
    printGeoInfo($ENV{"REMOTE_ADDR"});
}
else {
    # Resolve each IP in the request
    my @addrs = split /,/, $fields{"ip"};
    foreach (@addrs) {      
        my $addr = substr($_, 0, 15); # chop at max length of an IP address
        if ($addr =~ /\d+\.\d+\.\d+\.\d+/) {   # only select good IPs
	        printGeoInfo($addr);
	    }
        else {
	        print "Bad IP\n";
        }
    }
}

# print the Geo info
sub printGeoInfo  {      
    my $addr = shift;
    print "$addr,";    
    my $r = $GI->record_by_addr($addr);
    if ($r) {
        print join(",", $r->city,
            $r->region,     
            $r->country_code,
            $r->latitude,
            $r->longitude);
    } 
    else {
        print "UNKNOWN";                  
    }
    print "\n"; 
}

#QED