/usr/share/perl5/Net/Whois/Raw.pm is in libnet-whois-raw-perl 2.43-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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require 5.008_001;
require Net::Whois::Raw::Common;
require Net::Whois::Raw::Data;
use strict;
use Carp;
use IO::Socket;
use Encode;
use utf8;
our @EXPORT = qw( whois get_whois );
our $VERSION = '2.43';
our ($OMIT_MSG, $CHECK_FAIL, $CHECK_EXCEED, $CACHE_DIR, $TIMEOUT, $DEBUG) = (0) x 7;
our $CACHE_TIME = 60;
our $SET_CODEPAGE = '';
our $SILENT_MODE = 0;
our (%notfound, %strip, @SRC_IPS, %POSTPROCESS);
our $class = __PACKAGE__;
my $last_cache_clear_time;
sub whois_config {
my ($par) = @_;
my @parnames = qw(OMIT_MSG CHECK_FAIL CHECK_EXCEED CACHE_DIR CACHE_TIME TIMEOUT @SRC_IPS);
foreach my $parname (@parnames) {
if (exists($par->{$parname})) {
no strict 'refs';
${$parname} = $par->{$parname};
}
}
}
sub whois_config_data {
my $net_whois_raw_data = shift;
no strict 'refs';
foreach my $k (keys %$net_whois_raw_data) {
%{'Net::Whois::Raw::Data::'.$k} = (
%{'Net::Whois::Raw::Data::'.$k},
%{ $net_whois_raw_data->{ $k } || {} },
);
}
}
# get cached whois
sub whois {
my ($dom, $server, $which_whois) = @_;
$which_whois ||= 'QRY_LAST';
my $res = Net::Whois::Raw::Common::get_from_cache(
$dom, $CACHE_DIR, $CACHE_TIME
);
my ($res_text, $res_srv, $res_text2);
if ($res) {
if ($which_whois eq 'QRY_FIRST') {
$res_text = $res->[0]->{text};
$res_srv = $res->[0]->{srv};
} elsif ($which_whois eq 'QRY_LAST' || !defined($which_whois)) {
$res_text = $res->[-1]->{text};
$res_srv = $res->[-1]->{srv};
}
}
else {
($res_text, $res_srv) = get_whois($dom, $server, $which_whois);
}
$res_srv = '' if $res_srv && $res_srv eq 'www_whois';
if ( $which_whois ne 'QRY_ALL' ) {
utf8::decode( $res_text ); # Perl whyly loss utf8 flag
$res_text = encode( $SET_CODEPAGE, $res_text ) if $SET_CODEPAGE;
}
return wantarray ? ($res_text, $res_srv) : $res_text;
}
# obtain whois
sub get_whois {
my ($dom, $srv, $which_whois) = @_;
$which_whois ||= 'QRY_LAST';
my $whois = get_all_whois($dom, $srv, $which_whois eq 'QRY_FIRST')
or return undef;
Net::Whois::Raw::Common::write_to_cache($dom, $whois, $CACHE_DIR);
if ($which_whois eq 'QRY_LAST') {
my $thewhois = $whois->[-1];
return wantarray ? ($thewhois->{text}, $thewhois->{srv}) : $thewhois->{text};
}
elsif ($which_whois eq 'QRY_FIRST') {
my $thewhois = $whois->[0];
return wantarray ? ($thewhois->{text}, $thewhois->{srv}) : $thewhois->{text};
}
else {
return $whois;
}
}
sub get_all_whois {
my ($dom, $srv, $norecurse) = @_;
my $is_ns = 0;
$is_ns = 1 if $dom =~ s/.NS$//i;
$srv ||= Net::Whois::Raw::Common::get_server( $dom, $is_ns );
if ($srv eq 'www_whois') {
my ($responce, $ishtml) = www_whois_query( $dom );
return $responce ? [ { text => $responce, srv => $srv } ] : $responce;
}
my @whois = recursive_whois( $dom, $srv, [], $norecurse, $is_ns );
my $whois_answers = process_whois_answers( \@whois, $dom );
return $whois_answers;
}
sub process_whois_answers {
my ($raw_whois, $dom) = @_;
my @processed_whois;
my $level = 0;
foreach my $whois_rec (@{$raw_whois}) {
$whois_rec->{level} = $level;
my ($text, $error) = Net::Whois::Raw::Common::process_whois(
$dom,
$whois_rec->{srv},
$whois_rec->{text},
$CHECK_FAIL, $OMIT_MSG, $CHECK_EXCEED,
);
die $error if $level == 0 && $error && $error eq "Connection rate exceeded";
if ($text || $level == 0) {
$whois_rec->{text} = $text;
push @processed_whois, $whois_rec;
}
$level++;
}
return \@processed_whois;
}
sub recursive_whois {
my ($dom, $srv, $was_srv, $norecurse, $is_ns) = @_;
my $lines = whois_query( $dom, $srv, $is_ns );
my $whois = join("", @{$lines});
my ($newsrv, $registrar);
foreach (@{$lines}) {
$registrar ||= /Registrar/ || /Registered through/;
if ( $registrar && !$norecurse && /Whois Server:\s*([A-Za-z0-9\-_\.]+)/ ) {
$newsrv = lc $1;
}
elsif ($whois =~ /To single out one record, look it up with \"xxx\",/s) {
return recursive_whois( "=$dom", $srv, $was_srv );
}
elsif (/ReferralServer: whois:\/\/([-.\w]+)/) {
$newsrv = $1;
last;
}
elsif (/Contact information can be found in the (\S+)\s+database/) {
$newsrv = $Net::Whois::Raw::Data::ip_whois_servers{ $1 };
}
elsif ((/OrgID:\s+(\w+)/ || /descr:\s+(\w+)/) && Net::Whois::Raw::Common::is_ipaddr($dom)) {
my $val = $1;
if($val =~ /^(?:RIPE|APNIC|KRNIC|LACNIC)$/) {
$newsrv = $Net::Whois::Raw::Data::ip_whois_servers{ $val };
last;
}
}
elsif (/^\s+Maintainer:\s+RIPE\b/ && Net::Whois::Raw::Common::is_ipaddr($dom)) {
$newsrv = $Net::Whois::Raw::Data::servers{RIPE};
}
elsif ( $is_ns && $srv ne $Net::Whois::Raw::Data::servers{NS} ) {
$newsrv = $Net::Whois::Raw::Data::servers{NS};
}
}
if ($dom =~ /^xn--/i && $newsrv && $Net::Whois::Raw::Data::whois_servers_with_no_idn_support{$newsrv}) {
# Bypass recursing to WHOIS servers with no IDN support
$newsrv = undef;
}
my @whois_recs = ( { text => $whois, srv => $srv } );
if ($newsrv && $newsrv ne $srv) {
warn "recurse to $newsrv\n" if $DEBUG;
return () if grep {$_ eq $newsrv} @$was_srv;
my @new_whois_recs = eval { recursive_whois( $dom, $newsrv, [@$was_srv, $srv], 0, $is_ns) };
my $new_whois = scalar(@new_whois_recs) ? $new_whois_recs[0]->{text} : '';
my $notfound = $Net::Whois::Raw::Data::notfound{$newsrv};
if ( $new_whois && !$@ && not ( $notfound && $new_whois =~ /$notfound/im ) ) {
if ( $is_ns ) {
unshift @whois_recs, @new_whois_recs;
}
else {
push @whois_recs, @new_whois_recs;
}
}
else {
warn "recursive query failed\n" if $DEBUG;
}
}
return @whois_recs;
}
sub whois_query {
my ($dom, $srv, $is_ns) = @_;
# Prepare query
my $whoisquery = Net::Whois::Raw::Common::get_real_whois_query($dom, $srv, $is_ns);
# Prepare for query
my (@sockparams, $sock);
if ($class->can ('whois_query_sockparams')) {
@sockparams = $class->whois_query_sockparams ($dom, $srv);
}
# hook for outside defined socket
elsif ($class->can ('whois_query_socket')) {
$sock = $class->whois_query_socket ($dom, $srv);
}
elsif (scalar(@SRC_IPS)) {
my $src_ip = $SRC_IPS[0];
push @SRC_IPS, shift @SRC_IPS; # rotate ips
@sockparams = (PeerAddr => "$srv:43", LocalAddr => $src_ip);
}
else {
@sockparams = "$srv:43";
}
print "QUERY: $whoisquery; SRV: $srv, ".
"OMIT_MSG: $OMIT_MSG, CHECK_FAIL: $CHECK_FAIL, CACHE_DIR: $CACHE_DIR, ".
"CACHE_TIME: $CACHE_TIME, TIMEOUT: $TIMEOUT\n" if $DEBUG >= 2;
my $prev_alarm = 0;
my @lines;
# Make query
eval {
local $SIG{'ALRM'} = sub { die "Connection timeout to $srv" };
$prev_alarm = alarm $TIMEOUT if $TIMEOUT;
unless($sock){
$sock = IO::Socket::INET->new(@sockparams) || die "$srv: $!: ".join(', ', @sockparams);
}
if ($class->can ('whois_socket_fixup')) {
my $new_sock = $class->whois_socket_fixup ($sock);
$sock = $new_sock if $new_sock;
}
if ($DEBUG > 2) {
require Data::Dumper;
print "Socket: ". Data::Dumper::Dumper($sock);
}
$sock->print( $whoisquery, "\r\n" );
# TODO: $soc->read, parameters for read chunk size, max content length
# Now you can redefine SOCK_CLASS::getline method as you want
while (my $str = $sock->getline) {
push @lines, $str;
}
$sock->close;
};
alarm $prev_alarm;
Carp::confess $@ if $@;
foreach (@lines) { s/\r//g; }
print "Received ".scalar(@lines)." lines\n" if $DEBUG >= 2;
return \@lines;
}
sub www_whois_query {
my ($dom) = (lc shift);
my ($resp, $url);
my ($name, $tld) = Net::Whois::Raw::Common::split_domain( $dom );
my $http_query_urls = Net::Whois::Raw::Common::get_http_query_url($dom);
foreach my $qurl ( @{$http_query_urls} ) {
# load-on-demand
unless ($INC{'LWP/UserAgent.pm'}) {
require LWP::UserAgent;
require HTTP::Request;
require HTTP::Headers;
require URI::URL;
import LWP::UserAgent;
import HTTP::Request;
import HTTP::Headers;
import URI::URL;
}
my $referer = delete $qurl->{form}{referer} if $qurl->{form} && defined $qurl->{form}{referer};
my $method = ( $qurl->{form} && scalar(keys %{$qurl->{form}}) ) ? 'POST' : 'GET';
my $ua;
# hook for outside defined lwp
if ($class->can ('whois_query_ua')) {
$ua = $class->whois_query_ua ($dom);
}
unless($ua){
$ua = new LWP::UserAgent( parse_head => 0 );
$ua->agent('Mozilla/5.0 (X11; U; Linux i686; ru; rv:1.9.0.5) Gecko/2008121622 Fedora/3.0.5-1.fc10 Firefox/3.0.5');
}
my $header = HTTP::Headers->new;
$header->header('Referer' => $referer) if $referer;
my $req = new HTTP::Request $method, $qurl->{url}, $header;
if ($method eq 'POST') {
require URI::URL;
import URI::URL;
my $curl = url("http:");
$req->content_type('application/x-www-form-urlencoded');
$curl->query_form( %{$qurl->{form}} );
$req->content( $curl->equery );
}
$resp = eval {
local $SIG{ALRM} = sub { die "www_whois connection timeout" };
alarm 10;
$ua->request($req)->content;
};
alarm 0;
if ( !$resp || $@ || $resp =~ /www_whois connection timeout/ || $resp =~ /^500 Can\'t connect/ ) {
undef $resp;
}
else {
$url = $qurl->{url};
last;
}
}
return undef unless $resp;
chomp $resp;
$resp =~ s/\r//g;
my $ishtml;
$resp = Net::Whois::Raw::Common::parse_www_content($resp, $tld, $url, $CHECK_EXCEED);
return wantarray ? ($resp, $ishtml) : $resp;
}
sub import {
my $mypkg = shift;
my $callpkg = caller;
no strict 'refs';
# export subs
*{"$callpkg\::$_"} = \&{"$mypkg\::$_"} foreach ((@EXPORT, @_));
}
1;
__END__
=head1 NAME
Net::Whois::Raw -- Get Whois information for domains
=head1 SYNOPSIS
use Net::Whois::Raw;
$dominfo = whois('perl.com');
($dominfo, $whois_server) = whois('funet.fi');
$reginfo = whois('REGRU-REG-RIPN', 'whois.ripn.net');
$arrayref = get_whois('yahoo.co.uk', undef, 'QRY_ALL');
$text = get_whois('yahoo.co.uk', undef, 'QRY_LAST');
($text, $srv) = get_whois('yahoo.co.uk', undef, 'QRY_FIRST');
$Net::Whois::Raw::OMIT_MSG = 1;
# This will attempt to strip several known copyright
# messages and disclaimers sorted by servers.
# Default is to give the whole response.
$Net::Whois::Raw::CHECK_FAIL = 1;
# This will return undef if the response matches
# one of the known patterns for a failed search,
# sorted by servers.
# Default is to give the textual response.
$Net::Whois::Raw::CHECK_EXCEED = 1;
# When this option is set, "die" will be called
# if connection rate to specific whois server have been
# exceeded
$Net::Whois::Raw::CACHE_DIR = "/var/spool/pwhois/";
# Whois information will be
# cached in this directory. Default is no cache.
$Net::Whois::Raw::CACHE_TIME = 60;
# Cache files will be cleared after not accessed
# for a specific number of minutes. Documents will not be
# cleared if they keep get requested for, independent
# of disk space.
$Net::Whois::Raw::TIMEOUT = 10;
# Cancel the request if connection is not made within
# a specific number of seconds.
@Net::Whois::Raw::SRC_IPS = (11.22.33.44);
# List of local IP addresses to
# use for WHOIS queries. Addresses will be used used
# successively in the successive queries
$Net::Whois::Raw::POSTPROCESS{whois.crsnic.net} = \&my_func;
# Call to a user-defined subroutine on whois result,
# depending on whois-server.
# Above is equil to:
# ($text, $srv) = whois('example.com');
# $text = my_func($text) if $srv eq 'whois.crsnic.net';
=head1 DESCRIPTION
Net::Whois::Raw queries WHOIS servers about domains.
The module supports recursive WHOIS queries.
Also queries via HTTP is supported for some TLDs.
Setting the variables $OMIT_MSG and $CHECK_FAIL will match the results
against a set of known patterns. The first flag will try to omit the
copyright message/disclaimer, the second will attempt to determine if
the search failed and return undef in such a case.
B<IMPORTANT>: these checks merely use pattern matching; they will work
on several servers but certainly not on all of them.
=head1 FUNCTIONS
=over 3
=item whois( DOMAIN [, SRV [, WHICH_WHOIS]] )
Returns Whois information for C<DOMAIN>.
Without C<SRV> argument default Whois server for specified domain name
zone will be used. Use 'www_whois' as server name to force
WHOIS querying via HTTP (only few TLDs are supported in HTTP queries).
Caching is supported: if $CACHE_DIR variable is set and there is cached
entry for that domain - information from the cache will be used.
C<WHICH_WHOIS> argument - look get_whois docs below.
=item get_whois( DOMAIN [, SRV [, WHICH_WHOIS]] )
Lower-level function to query Whois information for C<DOMAIN>.
Caching IS NOT supported (caching is implemented only in higher-level
C<whois> function).
Without C<SRV> argument default Whois server for specified domain name
zone will be used.
C<WHICH_WHOIS> argument is used to access a results if recursive queries;
possible values:
C<'QRY_FIRST'> -
returns results of the first query. Non't make recursive queries.
In scalar context returns just whois text.
In list context returns two values: whois text and whois server
which was used to make query).
C<'QRY_LAST'> -
returns results of the last query.
In scalar context returns just whois text.
In list context returns two values: whois text and whois server
which was used to make query).
This is the default option.
C<'QRY_ALL'> -
returns results of the all queries of the recursive chain.
Reference to array of references to hashes is returned.
Hash keys: C<text> - result of whois query, C<srv> -
whois server which was used to make query.
=back
=head1 USER DEFINED FUNCTIONS
=over 3
=item whois_query_sockparams( DOMAIN, SRV )
You can set your own IO::Socket::INET params like this:
*Net::Whois::Raw::whois_query_sockparams = sub {
my $class = shift;
my $domain = shift;
my $name = shift;
return (
PeerAddr => $name,
PeerPort => 43,
# LocalHost => ,
# LocalPort =>
);
};
=item whois_query_socket( DOMAIN, SRV )
You can set your own IO::Socket::INET like this:
*Net::Whois::Raw::whois_query_socket = sub {
my $class = shift;
my $domain = shift;
my $name = shift;
$name .= ':43';
return IO::Socket::INET->new();
};
=item whois_query_ua( DOMAIN, SRV )
You can set your own LWP::UserAgent like this:
*Net::Whois::Raw::whois_query_ua = sub {
my $class = shift;
my $domain = shift;
return LWP::UserAgent->new();
};
=back
=head1 AUTHOR
Original author Ariel Brosh B<schop@cpan.org>,
Inspired by jwhois.pl available on the net.
Since Ariel has passed away in September 2002:
Past maintainers Gabor Szabo B<gabor@perl.org.il>,
Corris Randall B<corris@cpan.org>
Current Maintainer: Walery Studennikov B<despair@cpan.org>
=head1 CREDITS
See file "Changes" in the distribution for the complete list of contributors.
=head1 CHANGES
See file "Changes" in the distribution
=head1 NOTE
Some users complained that the B<die> statements in the module make their
CGI scripts crash. Please consult the entries on B<eval> and
B<die> on L<perlfunc> about exception handling in Perl.
=head1 COPYRIGHT
Copyright 2000--2002 Ariel Brosh.
Copyright 2003--2003 Gabor Szabo.
Copyright 2003--2003 Corris Randall.
Copyright 2003--now() Walery Studennikov.
This package is free software. You may redistribute it or modify it under
the same terms as Perl itself.
I apologize for any misunderstandings caused by the lack of a clear
licence in previous versions.
=head1 COMMERCIAL SUPPORT
Not available anymore.
=head1 LEGAL
Notice that registrars forbid querying their whois servers as a part of
a search engine, or querying for a lot of domains by script.
Also, omitting the copyright information (that was requested by users of this
module) is forbidden by the registrars.
=head1 SEE ALSO
L<pwhois>, L<whois>.
=cut
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