view contrib/geo2nginx.pl @ 5129:96ee76fda991

Misc: switch to single export operation in "zip" target. While exporting parts of the tree might be better in some cases, it is awfully slow overseas, and also requires unlocking ssh key multiple times. Exporting the whole repo and removing directories not needed for zip is faster here. It is also a required step before we can switch to Mercurial.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 22 Mar 2013 15:14:07 +0000
parents c9ad0d9c7d59
children
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#!/usr/bin/perl -w

# (c) Andrei Nigmatulin, 2005
#
# this script provided "as is", without any warranties. use it at your own risk.
#
# special thanx to Andrew Sitnikov for perl port
#
# this script converts CSV geoip database (free download at http://www.maxmind.com/app/geoip_country)
# to format, suitable for use with nginx_http_geo module (http://sysoev.ru/nginx)
#
# for example, line with ip range
#
#   "62.16.68.0","62.16.127.255","1041253376","1041268735","RU","Russian Federation"
#
# will be converted to four subnetworks:
#
#   62.16.68.0/22 RU;
#   62.16.72.0/21 RU;
#   62.16.80.0/20 RU;
#   62.16.96.0/19 RU;


use warnings;
use strict;

while( <STDIN> ){
	if (/"[^"]+","[^"]+","([^"]+)","([^"]+)","([^"]+)"/){
		print_subnets($1, $2, $3);
	}
}

sub  print_subnets {
	my ($a1, $a2, $c) = @_;
	my $l;
    while ($a1 <= $a2) {
		for ($l = 0; ($a1 & (1 << $l)) == 0 && ($a1 + ((1 << ($l + 1)) - 1)) <= $a2; $l++){};
		print long2ip($a1) . "/" . (32 - $l) . " " . $c . ";\n";
    	$a1 += (1 << $l);
	}
}

sub long2ip {
	my $ip = shift;

	my $str = 0;

	$str = ($ip & 255);

	$ip >>= 8;
	$str = ($ip & 255).".$str";

	$ip >>= 8;
	$str = ($ip & 255).".$str";

	$ip >>= 8;
	$str = ($ip & 255).".$str";
}