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use FindBin;
use lib "$FindBin::Bin/../lib";
use Mojo::Base -strict;
# "Cheating in a fake fight. That's low."
use Mojo::IOLoop;
# Minimal connect proxy server to test TLS tunneling
my %buffer;
Mojo::IOLoop->server(
{port => 3000} => sub {
my ($loop, $stream, $client) = @_;
# Connection to client
$stream->on(
read => sub {
my ($stream, $chunk) = @_;
# Write chunk from client to server
my $server = $buffer{$client}{connection};
return Mojo::IOLoop->stream($server)->write($chunk) if $server;
# Read connect request from client
my $buffer = $buffer{$client}{client} .= $chunk;
if ($buffer =~ /\x0d?\x0a\x0d?\x0a$/) {
$buffer{$client}{client} = '';
if ($buffer =~ /CONNECT (\S+):(\d+)?/) {
my $address = $1;
my $port = $2 || 80;
# Connection to server
$buffer{$client}{connection} = Mojo::IOLoop->client(
{address => $address, port => $port} => sub {
my ($loop, $err, $stream) = @_;
# Connection to server failed
if ($err) {
say "Connection error for $address:$port: $err";
Mojo::IOLoop->remove($client);
return delete $buffer{$client};
}
# Start forwarding data in both directions
say "Forwarding to $address:$port.";
Mojo::IOLoop->stream($client)
->write("HTTP/1.1 200 OK\x0d\x0a"
. "Connection: keep-alive\x0d\x0a\x0d\x0a");
$stream->on(
read => sub {
my ($stream, $chunk) = @_;
Mojo::IOLoop->stream($client)->write($chunk);
}
);
# Server closed connection
$stream->on(
close => sub {
Mojo::IOLoop->remove($client);
delete $buffer{$client};
}
);
}
);
}
}
# Invalid request from client
else { Mojo::IOLoop->remove($client) }
}
);
# Client closed connection
$stream->on(
close => sub {
my $buffer = delete $buffer{$client};
Mojo::IOLoop->remove($buffer->{connection}) if $buffer->{connection};
}
);
}
) or die "Couldn't create listen socket!\n";
print <<'EOF';
Starting connect proxy on port 3000.
For testing use something like "HTTPS_PROXY=http://127.0.0.1:3000".
EOF
# Start event loop
Mojo::IOLoop->start;
1;
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