view ssl_sni_sessions.t @ 836:a9c4cebcfe69

Tests: adjusted http resolver test with resend. Don't bother with socket error to force resolver resend. Nginx doesn't handle well ECONNREFUSED send() error, which results in "500 Internal Server Error". It may deserve a separate test, though.
author Sergey Kandaurov <pluknet@nginx.com>
date Fri, 29 Jan 2016 00:40:05 +0300
parents 3200d5b4ffa8
children e9064d691790
line wrap: on
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#!/usr/bin/perl

# (C) Maxim Dounin

# Tests for SSL session resumption with SNI.

###############################################################################

use warnings;
use strict;

use Test::More;

BEGIN { use FindBin; chdir($FindBin::Bin); }

use lib 'lib';
use Test::Nginx;

###############################################################################

select STDERR; $| = 1;
select STDOUT; $| = 1;

my $t = Test::Nginx->new()->has(qw/http http_ssl sni rewrite/)
	->has_daemon('openssl')
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    ssl_certificate_key localhost.key;
    ssl_certificate localhost.crt;

    server {
        listen       127.0.0.1:8443 ssl;
        server_name  default;

        ssl_session_tickets off;
        ssl_session_cache shared:cache1:1m;

        location / {
            return 200 $ssl_server_name:$ssl_session_reused;
        }
    }

    server {
        listen       127.0.0.1:8443;
        server_name  nocache;

        ssl_session_tickets off;
        ssl_session_cache shared:cache2:1m;

        location / {
            return 200 $ssl_server_name:$ssl_session_reused;
        }
    }

    server {
        listen       127.0.0.1:8444 ssl;
        server_name  default;

        ssl_session_ticket_key ticket1.key;

        location / {
            return 200 $ssl_server_name:$ssl_session_reused;
        }
    }

    server {
        listen       127.0.0.1:8444;
        server_name  tickets;

        ssl_session_ticket_key ticket2.key;

        location / {
            return 200 $ssl_server_name:$ssl_session_reused;
        }
    }
}

EOF

eval { require IO::Socket::SSL; die if $IO::Socket::SSL::VERSION < 1.56; };
plan(skip_all => 'IO::Socket::SSL version >= 1.56 required') if $@;

eval {
	if (IO::Socket::SSL->can('can_client_sni')) {
		IO::Socket::SSL->can_client_sni() or die;
	}
};
plan(skip_all => 'IO::Socket::SSL with OpenSSL SNI support required') if $@;

eval {
	my $ctx = Net::SSLeay::CTX_new() or die;
	my $ssl = Net::SSLeay::new($ctx) or die;
	Net::SSLeay::set_tlsext_host_name($ssl, 'example.org') == 1 or die;
};
plan(skip_all => 'Net::SSLeay with OpenSSL SNI support required') if $@;

$t->plan(6);

$t->write_file('openssl.conf', <<EOF);
[ req ]
default_bits = 2048
encrypt_key = no
distinguished_name = req_distinguished_name
[ req_distinguished_name ]
EOF

my $d = $t->testdir();

foreach my $name ('localhost') {
	system('openssl req -x509 -new '
		. "-config '$d/openssl.conf' -subj '/CN=$name/' "
		. "-out '$d/$name.crt' -keyout '$d/$name.key' "
		. ">>$d/openssl.out 2>&1") == 0
		or die "Can't create certificate for $name: $!\n";
}

$t->write_file('ticket1.key', '1' x 48);
$t->write_file('ticket2.key', '2' x 48);

$t->run();

###############################################################################

# check that everything works fine with default server

my $ctx = get_ssl_context();

like(get('default', 8443, $ctx), qr!default:\.!, 'default server');
like(get('default', 8443, $ctx), qr!default:r!, 'default server reused');

# check that sessions are still properly saved and restored
# when using an SNI-based virtual server with different session cache;
# as session resumption happens before SNI, only default server
# settings are expected to matter

# this didn't work before nginx 1.9.6 (and caused segfaults if no session
# cache was configured the SNI-based virtual server), because OpenSSL, when
# creating new sessions, uses callbacks from the default server context, but
# provides access to the SNI-selected server context only (ticket #235)

$ctx = get_ssl_context();

like(get('nocache', 8443, $ctx), qr!nocache:\.!, 'without cache');
like(get('nocache', 8443, $ctx), qr!nocache:r!, 'without cache reused');

# make sure tickets can be used if an SNI-based virtual server
# uses a different set of session ticket keys explicitly set

$ctx = get_ssl_context();

like(get('tickets', 8444, $ctx), qr!tickets:\.!, 'tickets');
like(get('tickets', 8444, $ctx), qr!tickets:r!, 'tickets reused');

###############################################################################

sub get_ssl_context {
	return IO::Socket::SSL::SSL_Context->new(
		SSL_verify_mode => IO::Socket::SSL::SSL_VERIFY_NONE(),
		SSL_session_cache_size => 100
	);
}

sub get_ssl_socket {
	my ($host, $port, $ctx) = @_;
	my $s;

	eval {
		local $SIG{ALRM} = sub { die "timeout\n" };
		local $SIG{PIPE} = sub { die "sigpipe\n" };
		alarm(2);
		$s = IO::Socket::SSL->new(
			Proto => 'tcp',
			PeerAddr => '127.0.0.1',
			PeerPort => $port,
			SSL_hostname => $host,
			SSL_reuse_ctx => $ctx,
			SSL_error_trap => sub { die $_[1] }
		);
		alarm(0);
	};
	alarm(0);

	if ($@) {
		log_in("died: $@");
		return undef;
	}

	return $s;
}

sub get {
	my ($host, $port, $ctx) = @_;

	return http(<<EOF, socket => get_ssl_socket($host, $port, $ctx));
GET / HTTP/1.0
Host: $host

EOF
}

###############################################################################