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dnsenum.pl
executable file
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dnsenum.pl
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#!/usr/bin/perl
#
#
# dnsenum.pl VERSION 1.3.2
# This version: - changed version number to the correct one
#
# dnsenum.pl: multithread script to enumerate information on
# a domain and to discover non-contiguous ip blocks.
#
# 1) Get the host's address.
# 2) Get the nameservers (threaded).
# 3) get the MX record (threaded).
# 4) Perform axfr queries on nameservers (threaded).
# 5) Get extra names via google scraping.
# 6) Brute force subdomains from file (threaded).
# 7) Calculate C class domain network ranges and perform whois
# queries on them (threaded).
# 8) Perform reverse lookups on C class or/and whois
# network ranges (threaded).
# 9) Write to domain_ips.txt file non-contiguous ip-blocks results.
#
# run perldoc on this script for help.
#
# To install needed modules:
# sudo perl -MCPAN -e shell
# and then e.g.: cpan[1]> install XML::Writer
#
# Copyright (C) 2014 - Filip Waeytens, tixxDZ
# Copyright (C) 2019 - Network Silence
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#
#
# Special thanks to all perl developers.
#
# please see perldoc dnsenum.pl for options and arguments
use strict;
use warnings
; #it complains about uninitialized values when it doesn't find address in RR; need to fix later
use Config;
use Term::ANSIColor;
use Getopt::Long;
use IO::File;
use Net::IP;
use Net::DNS;
use Net::Netmask;
use XML::Writer;
use Socket;
use Cwd;
use String::Random;
my (
$ithreads_support, $whois_support, $mech_support,
$html_support, $xml_support
);
my ( %nameservers, %allsubs, %googlesubs );
my ( %filesubs, %netranges, %recursubs );
my ( @mxservers, @results, @ipblocks, @privateips );
my ( $enum, $exp, $help, $noreverse, $nocolor, $update, $whois, $dnsserver );
my ( $private, $recursion, $scrap, $threads, $verbose );
my ( $dnsfile, $subfile, $dns_tmp, $sub_tmp, $fileips );
my ( $domain, $recur, $table, $extend_b, $extend_r );
my ( $timeout, $delay, $pages, $ipcount, $ipvalid ) = ( 10, 3, 5, 0, 0 );
my ($output);
my $writer;
my $program = 'dnsenum.pl';
my $default_dir = '/usr/share/dnsenum/dns.txt';
my $string_gen = String::Random->new;
my $wildcards = $string_gen->randpattern("cccccccccccc");
my @wildcardaddress;
my @wildcardcname;
my $VERSION = '1.3.2';
#load threads modules (perl must be compiled with ithreads support)
BEGIN {
if ( $Config{useithreads} ) {
eval(
" use threads;
use threads::shared;
use Thread::Queue;
"
);
$ithreads_support = 1 unless $@;
}
}
eval("use Net::Whois::IP qw(whoisip_query);");
$whois_support = 1 unless $@;
eval("use WWW::Mechanize;");
$mech_support = 1 unless $@;
eval("use HTML::Parser;");
$html_support = 1 unless $@;
eval("use XML::Writer;");
$xml_support = 1 unless $@;
$dnsfile = get_dns_list($default_dir);
print STDOUT $program, " VERSION:", $VERSION, "\n";
GetOptions(
'dnsserver=s' => \$dnsserver,
'enum' => \$enum,
'd|delay=i' => \$delay,
'e|exclude=s' => \$exp,
'f|file=s' => \$dnsfile,
'h|help' => \$help,
'noreverse' => \$noreverse,
'nocolor' => \$nocolor,
'p|pages=i' => \$pages,
'private' => \$private,
'r|recursion' => \$recursion,
's|scrap=i' => \$scrap,
'subfile=s' => \$subfile,
'threads=i' => \$threads,
't|timeout=i' => \$timeout,
'u|update=s' => \$update,
'v|verbose' => \$verbose,
'w|whois' => \$whois,
'o|output=s' => \$output
); # Documentation Says Output not Out
usage() if $help || @ARGV == 0;
$domain = lc $ARGV[0];
$fileips = $domain . '_ips.txt';
#DEFAULT options --threads 5 -s 15 -w
if ($enum) {
$threads = 5;
$scrap = 15
; # Google scraping default to 15 to avoid Google Blocking us with captcha's
$whois = 1;
}
#module support
if ($threads) {
if (
(
!defined $ithreads_support
and warn "Warning: can't use threads, check ithreads support, and "
. "(threads, threads::shared, Thread::Queue) modules.\n"
)
|| $threads <= 0
)
{
$threads = undef;
}
else {
#to handle different ips that belongs to the domain
share(@results);
#number of ips that will be queried in reverse lookup
share($ipcount);
#number of valid ips (taken from reverse lookup responses)
share($ipvalid);
#will contain all valid subdomains
share(%allsubs);
if ($recursion) {
share(%recursubs);
share(%nameservers);
}
#to save whois netblocks
share($table);
#whois and reverse lookup results
share(%netranges);
}
}
if ( $whois && !defined $whois_support ) {
warn "Warning: can't load Net::Whois::IP module, "
. "whois queries disabled.\n";
$whois = undef;
}
if ( $output && !defined $xml_support ) {
warn "Warning: can't load XML::Writer module, " . "xml output disabled.\n";
$output = undef;
}
if ( defined($output) ) {
my $out = new IO::File(">$output");
$writer = new XML::Writer( OUTPUT => $out );
$writer->xmlDecl("UTF-8");
$writer->startTag( "magictree", "class" => "MtBranchObject" );
$writer->startTag( "testdata", "class" => "MtBranchObject" );
}
$scrap = undef
if $scrap
&& (
(
not defined $mech_support
and warn "Warning: can't load WWW::Mechanize module"
. ", Google scraping disabled.\n"
)
|| ( not defined $html_support
and warn "Warning: can't load HTML::Parser module"
. ", Google scraping disabled.\n" )
|| $scrap <= 0
|| $pages <= 0
);
$timeout = 10 if $timeout < 0 || $timeout > 128;
$delay = 3 if $delay < 0;
$update = undef if $update && !$dnsfile;
unless ($nocolor) {
print color 'bold blue';
}
print STDOUT "\n----- ", $domain, " -----\n";
unless ($nocolor) {
print color 'reset';
}
################START#####################
# (1) get the host's addresses
printheader("Host's addresses:\n");
my $res = Net::DNS::Resolver->new(
tcp_timeout => $timeout,
udp_timeout => $timeout,
defnames => 0
);
$res->nameservers($dnsserver) if $dnsserver;
my $packet = $res->query($domain);
if ($packet) {
foreach my $rr ( grep { $_->type eq 'A' } $packet->answer ) {
printrr( $rr->string );
xml_host($rr);
push @results, $rr->address
if $rr->name =~ /$domain$/;
}
}
elsif ($verbose) {
warn " ", $domain, " A query failed: ", $res->errorstring, "\n";
}
# wildcards test - I guess it can be cleaner, but it seems to be working
# tested with opendns servers and ubuntu.org domain
print STDOUT "\n" . "-" x 16 . "\nWildcards test:\n" . "-" x 16 . "\n"
if $verbose;
my $wildcardpacket = $res->query( $wildcards . "." . $domain );
# if we get a response resolving our random hostname, it can be a A or a CNAME
if ($wildcardpacket) {
printheader( "Wildcard detection using: " . $wildcards . "\n" );
foreach my $rr ( $wildcardpacket->answer ) {
if ( $rr->type eq 'A' ) {
printrr( $rr->string );
#wildcardaddress will hold the IP that's used as a string
my @wcheck = split( '\s+', $rr->string );
push @wildcardaddress, $wcheck[4];
}
if ( $rr->type eq 'CNAME' ) {
printrr( $rr->string );
#wildcardcname will hold CNAME that's used as a string
my @wcheck = split( '\s+', $rr->string );
push @wildcardcname, $wcheck[4];
}
}
unless ($nocolor) {
print color 'bold red';
}
print "\n\n!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n\n";
print STDOUT
" Wildcards detected, all subdomains will point to the same IP address\n";
print STDOUT " Omitting results containing "
. join( ', ', @wildcardaddress )
. ".\n Maybe you are using OpenDNS servers.\n";
print "\n!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n";
unless ($nocolor) {
print color 'reset';
}
#exit(1);#we don't exit when wildcards are detected, because we will miss existing hosts
}
elsif ($verbose) {
print STDOUT " good\n";
}
# (2) get the namservers for the domain
printheader("Name Servers:\n");
$packet = $res->query( $domain, 'NS' );
if ($packet) {
foreach my $rr ( grep { $_->type eq 'NS' } $packet->answer ) {
$nameservers{ $rr->nsdname } = 1;
}
die " Error: can't continue no NS record for ", $domain, "\n"
unless %nameservers;
#read the A record from the additional section
if ( $packet->header->arcount ) {
my @remain = additionalrecord( $packet, keys %nameservers );
#do nslookup on nameservers that are not present in the
#additional section
launchqueries( \&nslookup, @remain )
if scalar @remain;
}
#perform the nslookup on the nameservers
else {
launchqueries( \&nslookup, keys %nameservers );
}
}
#exit if there is no NS record.
else {
die " ", $domain, " NS record query failed: ", $res->errorstring, "\n";
}
# (3) get the MX record
printheader("Mail (MX) Servers:\n");
$packet = $res->query( $domain, 'MX' );
if ($packet) {
foreach my $rr ( grep { $_->type eq 'MX' } $packet->answer ) {
push @mxservers, $rr->exchange;
}
if ( scalar @mxservers ) {
if ( $packet->header->arcount ) {
my @remain = additionalrecord( $packet, @mxservers );
launchqueries( \&nslookup, @remain )
if scalar @remain;
}
else {
launchqueries( \&nslookup, @mxservers );
}
}
}
elsif ($verbose) {
warn " ", $domain, " MX record query failed: ", $res->errorstring, "\n";
}
# (4) perform zonetransfers on nameservers
printheader("Trying Zone Transfers and getting Bind Versions:\n");
launchqueries( \&zonetransfer, keys %nameservers );
# (5) scrap additional names from google search and do nslookup on them
if ($scrap) {
printheader( "Scraping " . $domain . " subdomains from Google:\n" );
my @tmp = googlescraping();
if ( scalar @tmp ) {
#print STDOUT "\n Performing nslookups:\n";
launchqueries( \&nslookup, map { $_ .= '.' . $domain } @tmp );
}
}
#exit if the brute force file is not specified
unless ($dnsfile) {
print STDOUT "\nbrute force file not specified, bay.\n";
if ( defined($output) ) {
$writer->endTag('testdata');
$writer->endTag('magictree');
}
exit(0);
}
$extend_b = 1 if ( $update && $update eq 'a' ) || $subfile || $recursion;
# (6) brute force subdomains from a file
printheader( "Brute forcing with " . $dnsfile . ":\n" );
bruteforce('f');
#updating dnsfile with zonetransfer or googlescraping subdomains results
if ($update) {
if ( $dns_tmp = IO::File->new_tmpfile() ) {
if ( $update eq 'z' ) {
print $dns_tmp $_, "\n"
for uniq_hosts( grep { $allsubs{$_} eq $update } keys %allsubs );
}
elsif ( $update eq 'g' ) {
print $dns_tmp $_, "\n" for uniq_hosts( keys %googlesubs );
}
}
else {
die "Error can't create a temporary file: $!, " . "to update ",
$dnsfile, " file\n";
}
}
undef %googlesubs if %googlesubs;
#launch recursion
if ($recursion) {
if (%allsubs) {
printheader("Performing recursion:\n");
print STDOUT "\n ---- Checking subdomains NS records ----\n";
#select subdomains that are able to recursion
launchqueries( \&selectsubdomains,
map { $_ .= '.' . $domain } sort keys %allsubs );
if (%recursubs) {
my @tmp = keys %recursubs;
undef %recursubs;
#brute force from a list using recursion
bruteforce( 'l', \@tmp );
}
else {
print STDERR "\n Can't perform recursion " . "no NS records.\n";
}
}
else {
print STDERR "\n Can't perform recursion no subdomains.\n";
}
undef %filesubs;
}
#updating the brute force file (-u a switch)
if ( $update && ( $update eq 'a' || $update eq 'all' ) ) {
#save ns and mx servers
my @tmp = keys %nameservers;
push @tmp, @mxservers if scalar @mxservers;
print $dns_tmp $_, "\n" for uniq_hosts( grep { s/\.$domain// } @tmp );
print $dns_tmp $_, "\n" for uniq_hosts( keys %allsubs );
}
#write subdomains to the subfile
if ($subfile) {
if ( $sub_tmp = IO::File->new_tmpfile() ) {
my %uniq;
@uniq{ keys %nameservers } = ();
@uniq{@mxservers} = () if scalar @mxservers;
print $sub_tmp $_, "\n" for grep { s/\.$domain// } keys %uniq;
print $sub_tmp $_, "\n" for keys %allsubs;
}
else {
die "Error can't create a temporary file: $!, "
. " to save results to ", $subfile, " file\n";
}
}
undef @mxservers;
undef %allsubs;
# (7) get domain network ranges from brute force results and whois queries
@results = networkranges(@results);
undef %netranges;
# (8) perform reverse lookups on netranges (class C or whois netranges)
unless ($noreverse) {
#to save all valid subdomains discovered in
#the reverse lookup process
$extend_r = 1
if (
$update
&& ( $update eq 'r'
|| $update eq 'a'
|| $update eq 'all' )
)
|| $subfile;
printheader(
"Performing reverse lookup on " . $ipcount . " ip addresses:\n" );
launchqueries( \&reverselookup, @results );
print STDOUT "\n", $ipvalid, " results out of ",
$ipcount, " IP addresses.\n";
}
else {
#calculate ip blocks
@ipblocks = finalvalidips( sort_by_ip_address(@results) );
}
#save final IP blocks to the domain_ips.txt file
writetofile( $fileips, "w", @ipblocks );
#show private ips
if ( $private && scalar @privateips ) {
print STDOUT "\n" . "-" x 26 . "\n",
$domain, " private ips:\n" . "-" x 26 . "\n";
print STDOUT " ", $_, "\n" for @privateips;
#save private ips to domain_ips.txt file
writetofile( $fileips, "a+", @privateips );
}
# (9) show non-contiguous IP blocks
printheader( $domain . " ip blocks:\n" );
print STDOUT " ", $_, "\n" for @ipblocks;
#clean the brute force file
cleanfile( $dnsfile, $dns_tmp ) if $update;
#clean the subfile
cleanfile( $subfile, $sub_tmp ) if $subfile;
if ( defined($output) ) {
$writer->endTag('testdata');
$writer->endTag('magictree');
}
print STDOUT "\ndone.\n";
exit(0);
#--------------------------------------------------
#Check if dns.txt file exists. Default on nonexistance
#to local dns.txt
sub get_dns_list {
my $default_dir = shift;
unless ( -f $default_dir ) {
$default_dir = getcwd() . '/dns.txt';
}
return $default_dir;
}
#subroutine that will launch different queries
#(nslookup, zonetransfer, whoisip, reverselookup)
sub launchqueries {
my $querytype = shift;
if ( $querytype != \&reverselookup ) {
if ($threads) {
my $stream = new Thread::Queue;
$stream->enqueue(@_);
my $thrs = $threads; #don')t create unused threads
$thrs = scalar @_ if $threads > scalar @_;
for ( 1 .. $thrs ) {
threads->new( $querytype, \$stream );
}
#wait all threads
foreach ( threads->list ) {
$_->join
if ( $_->tid
&& !threads::equal( $_, threads->self ) );
}
}
else {
foreach (@_) {
&$querytype($_);
}
}
}
else {
foreach (@_) {
my $block = new2 Net::Netmask($_);
unless ($block) {
print STDERR " Can't perform reverse lookup: ",
$Net::Netmask::error, "\n";
next;
}
if ($threads) {
my $stream = new Thread::Queue;
$stream->enqueue( $block->enumerate );
for ( 1 .. $threads ) {
threads->new( $querytype, \$stream );
}
#wait all threads
foreach ( threads->list ) {
$_->join
if ( $_->tid
&& !threads::equal( $_, threads->self ) );
}
}
else {
&$querytype( $block->enumerate );
}
#calculate IP blocks results
if (%netranges) {
my @tmp =
finalvalidips( sort_by_ip_address( keys %netranges ) );
undef %netranges;
#get final valid ip blocks
push @ipblocks, @tmp;
}
#write reverse lookup hostnames results to files
if ( $extend_r && %allsubs ) {
if (
$update
&& ( $update eq 'r'
|| $update eq 'a'
|| $update eq 'all' )
)
{
print $dns_tmp $_, "\n" for uniq_hosts( keys %allsubs );
}
if ($subfile) {
print $sub_tmp $_, "\n" for keys %allsubs;
}
undef %allsubs;
}
}
}
}
#subroutine to perform reverse lookups
sub reverselookup {
my $stream = shift if $threads;
my $res = Net::DNS::Resolver->new(
tcp_timeout => $timeout,
udp_timeout => $timeout,
persistent_udp => 1
);
$res->nameservers( keys %nameservers );
while ( defined( my $ip = $threads ? $$stream->dequeue_nb : shift ) ) {
my $query = $res->query($ip);
if ($query) {
foreach my $rr ( grep { $_->type eq 'PTR' } $query->answer ) {
#exclude non PTR types answers or unwanted hostnames
next if $exp && $rr->ptrdname =~ /$exp/;
if ( $rr->ptrdname =~ /(.*)(\.$domain$)/i ) {
$allsubs{$1} = 1
if $extend_r && !$allsubs{$1};
#to calculate last valid ip blocks
unless ( $netranges{$ip} ) {
$netranges{$ip} = 1;
$ipvalid++;
}
printrr( $rr->string );
xml_host($rr);
}
#show all answers even if the hostname don't match the domain
elsif ($verbose) {
printrr( $rr->string );
xml_host($rr);
}
}
}
#this part is just to check progress
elsif ($verbose) {
print STDOUT " ", $ip, " ...\n";
}
}
}
sub xml_host {
if ( defined $output ) {
my $rr = shift;
my $ip;
if ( $rr->type eq 'A' ) {
$ip = $rr->address;
}
else {
my $packed_ip = gethostbyname( $rr->name );
if ( defined $packed_ip ) {
$ip = inet_ntoa($packed_ip);
}
}
if ( defined($ip) ) {
$writer->startTag("host");
$writer->characters($ip);
$writer->startTag("hostname");
$writer->characters( $rr->name );
$writer->endTag("hostname");
$writer->endTag("host");
}
$writer->startTag("fqdn");
$writer->characters( $rr->name . '.' );
$writer->endTag("fqdn");
}
}
#subroutine for nslookups (A record)
sub nslookup {
my $stream = shift if $threads;
my $res = Net::DNS::Resolver->new(
tcp_timeout => $timeout,
udp_timeout => $timeout,
persistent_udp => 1,
dnsrch => 0
);
$res->nameservers($dnsserver) if $dnsserver;
while ( defined( my $host = $threads ? $$stream->dequeue_nb : shift ) ) {
my $query = $res->search($host);
if ($query) {
foreach my $rr ( $query->answer ) {
##we only print / add the result if it doesn't match the wildcardaddress
if (
!(
$rr->can('address') && grep { $_ eq $rr->address } @wildcardaddress
)
&& !( grep { $_ eq $rr->name } @wildcardcname )
)
{
printrr( $rr->string );
xml_host($rr);
#check if it match the domain
if ( $rr->name =~ /(.*)(\.$domain$)/i ) {
#save valid subdomains
if ($extend_b) {
$allsubs{$1} = 1
unless $allsubs{$1};
#recursion results
$recursubs{$1} = 1
if $recur
&& !$recursubs{$1};
}
#save ip address
push @results, $rr->address
if $rr->type eq 'A';
}
}
}
}
elsif ($verbose) {
warn " ", $host, " A record query failed: ",
$res->errorstring, "\n";
}
}
}
#subroutine to select subdomains that have NS records
sub selectsubdomains {
my $stream = shift if $threads;
my $res = Net::DNS::Resolver->new(
tcp_timeout => $timeout,
udp_timeout => $timeout,
persistent_udp => 1
);
$res->nameservers($dnsserver) if $dnsserver;
while ( defined( my $host = $threads ? $$stream->dequeue_nb : shift ) ) {
my $packet = $res->query( $host, 'NS' );
if ($packet) {
foreach my $rr ( grep { $_->type eq 'NS' } $packet->answer ) {
#show all results
#print STDOUT " ", $rr->string ,"\n";
printrr( $rr->string );
xml_host($rr);
if ( $rr->name =~ /(.*)(\.$domain$)/i ) {
if ( !$allsubs{$1}
|| $allsubs{$1} ne 'r' )
{
#bookmark this hostname to
#perform recursion on it and
#to avoid repetition, because
#some domains will use CNAME
#types that point to subs
#that we have already
#processed in a previous
#recursion levels
$allsubs{$1} = 'r';
#select this subdomain
#for recursion
$recursubs{ $rr->name } = 1;
}
#perhaps for future additions we save
#ns servers for each domain or
#subdomain, this will be very
#useful in reverse lookup
# --- begin ---
#check if we already have this
#NS server
#next if $nameservers{$rr->nsdname};
#$nameservers{$rr->nsdname} = 1;
#push @tmp, $rr->nsdname;
# --- end ---
}
}
#perhaps for future additions to perform an extrem
#recursion to get the IP address of the NS servers
# --- begin ---
#next unless scalar @tmp;
#get the NS servers A record
#if ($packet->header->arcount) {
# @tmp = additionalrecord($packet,@tmp);
# next unless scalar @tmp;
#}
#foreach my $nshost (@tmp) {
# $packet = $res->query($nshost);
# if ($packet) {
# foreach my $rr \
# (grep { $_->type eq 'A' }
# $packet->answer) {
# print STDOUT " ",
# $rr->string , "\n";
# push @results, $rr->address
# if ($rr->name =~ /$domain$/);
# }
# }
# elsif ($verbose) {
# warn " ", $nshost ,
# " A record query failed: ",
# $res->errorstring , "\n";
# }
#}
# --- end ---
}
elsif ($verbose) {
warn " ", $host, " NS record query failed: ",
$res->errorstring, "\n";
}
}
}
#subroutine for zonetransfers
#I got rid of the Bind Versions search...doesn't really add anything and clutters output
sub zonetransfer {
my $stream = shift if $threads;
my $res = Net::DNS::Resolver->new(
tcp_timeout => $timeout,
udp_timeout => $timeout
);
while ( defined( my $ns = $threads ? $$stream->dequeue_nb : shift ) ) {
$res->nameservers($ns);
my @zone = $res->axfr($domain);
#my $version_query = $res->search("version.bind","TXT","CH");
print STDOUT "\nTrying Zone Transfer for ", $domain,
" on ", $ns, " ... \n";
if (@zone) {
foreach my $rr (@zone) {
#print all results
printrr( $rr->string );
xml_host($rr);
#save data if the record's domain name
#match the domain
if ( $rr->name =~ /(.*)(\.$domain$)/i ) {
#save hostname
$allsubs{$1} = 'z'
unless $allsubs{$1};
#save the IP address
push @results, $rr->address
if $rr->type eq 'A';
#save new mx servers hostnames
push @mxservers, $rr->exchange
if $rr->type eq 'MX';
#perhaps for future additions
#save NS servers for reverse lookups
# --- begin ---
#$nameservers{$rr->nsdname} = 1
# if ($rr->type eq 'NS' &&
# !$nameservers{$rr->nsdname});
# --- end ---
}
}
}
else {
warn "AXFR record query failed: ", $res->errorstring, "\n";
}
}
}
#subroutine for scraping domains from google
sub googlescraping {
my ( $response, $browser, $form, $parser, $nextpage );
my ( $count, $mypage ) = ( 0, 1 );
my $query = qq[-www site:$domain]; # Allinurl deprecated
my $nexturl = qq[/search?.*q=.*$domain.*start];
#on errors the mech object will call die
$browser = WWW::Mechanize->new(
autocheck => 1,
stack_depth => 1,
cookie_jar => undef
);
#uncomment for debugging with BURP
#$browser->proxy(['http'], 'http://127.0.0.1:8080');
#setup the browser config
my @agents = $browser->known_agent_aliases();
my $agent = $agents[ rand( scalar @agents ) ];
$browser->agent_alias($agent);
$browser->timeout($timeout);
#get the first page
$response = $browser->get("http://www.google.com/ncr");
$form = $browser->form_number(1)
or return;
$form->find_input('q')->value($query);
$response = $browser->submit_form(
form_number => 1,
form_name => 'f'
);
do {
$nextpage = undef;
print STDOUT "\n ---- Google search page: ", $mypage, " ---- \n\n";
$parser = HTML::Parser->new(
api_version => 3,
start_h => [
sub {
my $attr = shift;
#end of parsing
#(we have enough subdomains)
$parser->eof
unless $count < $scrap;
return unless $attr->{href};
#subdomains checks - if shit goes wrong with googlescraping it's prolly the regex
if ( $attr->{href} =~
/(\/url\?q\=http:\/\/)([\w\.-]+)(\.$domain\/)/ )
{
$allsubs{$2} = 'g'
unless $allsubs{$2};
$googlesubs{$2} = 1
unless $googlesubs{$2};