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|
package Twiggy::Server::TLS;
use strict;
use warnings;
use base 'Twiggy::Server';
use IO::Socket::SSL;
use Twiggy::TLS::Info;
require Carp;
use constant DEBUG => $ENV{TWIGGY_DEBUG};
sub new {
my $class = shift;
my $self = $class->SUPER::new(@_);
Carp::croak('missed required option "tls_key"')
unless $self->{tls_key};
Carp::croak('missed required option "tls_cert"')
unless $self->{tls_cert};
my %tls = (
SSL_server => 1,
SSL_version => $self->{tls_version} || 'SSLv23:!SSLv2',
SSL_cipher_list => $self->{tls_ciphers} || 'HIGH:!aNULL:!MD5',
SSL_key_file => $self->{tls_key},
SSL_cert_file => $self->{tls_cert},
SSL_ca_file => $self->{tls_ca},
SSL_verify_mode => SSL_VERIFY_NONE,
);
if (my $verify = $self->{tls_verify}) {
if ($verify eq 'off') {
}
elsif ($verify eq 'on') {
$tls{SSL_verify_mode} =
SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
}
elsif ($verify eq 'optional') {
$tls{SSL_verify_mode} = SSL_VERIFY_PEER;
}
else {
Carp::croak qq(Invalid tls_verify value "$verify");
}
}
$self->{_tls_opts} = \%tls;
$self->{_tls_context} = IO::Socket::SSL::SSL_Context->new(%tls)
or Carp::croak(
"TLS context initialization failed: " . IO::Socket::SSL::errstr);
if (my $server_ready_orig = $self->{server_ready}) {
$self->{server_ready} = sub {
my $args = shift;
$args->{proto} = 'https';
$server_ready_orig->($args);
};
}
$self;
}
sub _accept_handler {
my $self = shift;
my $super = $self->SUPER::_accept_handler(@_);
return sub {
my ($sock, $peer_host, $peer_port) = @_;
DEBUG
&& warn "$sock TLS connection accepted $peer_host:$peer_port\n";
return unless $sock;
$self->{exit_guard}->begin;
my $tls_guard;
IO::Socket::SSL->start_SSL(
$sock,
SSL_server => 1,
SSL_startHandshake => 0,
SSL_error_trap => sub {
my ($sock, $error) = @_;
$self->{exit_guard}->end;
undef $tls_guard;
$sock->close;
DEBUG && warn "$sock TLS error: $error\n";
},
SSL_reuse_ctx => $self->{_tls_context},
# This option is not inherited from context
SSL_cipher_list => $self->{_tls_opts}->{SSL_cipher_list}
);
$self->_setup_tls(
$sock,
\$tls_guard,
sub {
$self->{exit_guard}->end;
DEBUG && warn "$sock TLS connection established\n";
$super->($sock, $peer_host, $peer_port);
}
);
}
}
sub _run_app {
my ($self, $app, $env, $sock) = @_;
$env->{'psgi.url_scheme'} = 'https';
$env->{'psgi.tls'} = Twiggy::TLS::Info->new($sock);
$self->SUPER::_run_app($app, $env, $sock);
}
sub _setup_tls {
my ($self, $sock, $guard, $cb) = @_;
return $cb->() if $sock->accept_SSL;
my $error = $IO::Socket::SSL::SSL_ERROR;
return unless $error == SSL_WANT_READ || $error == SSL_WANT_WRITE;
$$guard = AE::io(
$sock,
$error == SSL_WANT_WRITE,
sub {
undef $$guard;
$self->_setup_tls($sock, $guard, $cb);
}
);
}
1;
|
