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use IO::Socket::Socks qw/:constants $SOCKS_ERROR/;
use IO::Socket;
use IO::Select;
use strict;
sub make_socks_server {
my ($version, $login, $password, %delay) = @_;
my $serv = IO::Socket::Socks->new(Listen => 3, SocksVersion => $version, RequireAuth => ($login && $password), UserAuth => sub {
$login = '' unless defined $login;
$password = '' unless defined $password;
$_[0] = '' unless defined $_[0];
$_[1] = '' unless defined $_[1];
return $_[0] eq $login && $_[1] eq $password;
}) or die $@;
my $child = fork();
die 'fork: ', $! unless defined $child;
if ($child == 0) {
while (1) {
if ($delay{accept}) {
sleep $delay{accept};
}
my $client = $serv->accept()
or next;
my $subchild = fork();
die 'subfork: ', $! unless defined $subchild;
if ($subchild == 0) {
my ($cmd, $host, $port) = @{$client->command()};
if($cmd == CMD_CONNECT)
{ # connect
my $socket = IO::Socket::INET->new(PeerHost => $host, PeerPort => $port, Timeout => 10);
if ($delay{reply}) {
sleep $delay{reply};
}
if($socket)
{
# request granted
$client->command_reply($version == 4 ? REQUEST_GRANTED : REPLY_SUCCESS, $socket->sockhost, $socket->sockport);
}
else
{
# request rejected or failed
$client->command_reply($version == 4 ? REQUEST_FAILED : REPLY_HOST_UNREACHABLE, $host, $port);
$client->close();
exit;
}
my $selector = IO::Select->new($socket, $client);
MAIN_CONNECT:
while(1)
{
my @ready = $selector->can_read();
foreach my $s (@ready)
{
my $readed = $s->sysread(my $data, 1024);
unless($readed)
{
# error or socket closed
$socket->close();
last MAIN_CONNECT;
}
if($s == $socket)
{
# return to client data readed from remote host
$client->syswrite($data);
}
else
{
# return to remote host data readed from the client
$socket->syswrite($data);
}
}
}
}
exit;
}
}
}
return ($child, $serv->sockhost eq "0.0.0.0" ? "127.0.0.1" : $serv->sockhost, $serv->sockport);
}
sub make_http_server {
my $serv = IO::Socket::INET->new(Listen => 3)
or die $@;
my $child = fork();
die 'fork: ', $! unless defined $child;
if ($child == 0) {
while (1) {
my $client = $serv->accept()
or next;
my $subchild = fork();
die 'subfork: ', $! unless defined $subchild;
if ($subchild == 0) {
my $buf;
while (1) {
$client->sysread($buf, 1024, length $buf)
or last;
if (rindex($buf, "\015\012\015\012") != -1) {
last;
}
}
my ($path) = $buf =~ /GET\s+(\S+)/
or exit;
my $response;
if ($path eq '/') {
$response = 'ROOT';
}
elsif ($path eq '/index') {
$response = 'INDEX';
}
else {
$response = 'UNKNOWN';
}
$client->syswrite(
join(
"\015\012",
"HTTP/1.1 200 OK",
"Connection: close",
"Content-Type: text/html",
"\015\012"
) . $response
);
exit;
}
}
exit;
}
return ($child, $serv->sockhost eq "0.0.0.0" ? "127.0.0.1" : $serv->sockhost, $serv->sockport);
}
1;
|
