view server_tokens.t @ 1571:1b4ceab9cb1c

Tests: fixed ssl_certificate.t with LibreSSL client. Net::SSLeay::connect() that manages TLS handshake could return unexpected error when receiving server alert, as seen in server certificate tests if it could not been selected. Typically, it returns the expected error -1, but with certain libssl implementations it can be 0, as explained below. The error is propagated from libssl's SSL_connect(), which is usually -1. In modern OpenSSL versions, it is the default error code used in the state machine returned when something went wrong with parsing TLS message header. In versions up to OpenSSL 1.0.2, with SSLv23_method() used by default, -1 is the only error code in the ssl_connect() method implementation which is used as well if receiving alert while parsing ServerHello. BoringSSL also seems to return -1. But it is not so with LibreSSL that returns zero. Previously, tests failed with client built with LibreSSL with SSLv3 removed. Here, the error is propagated directly from ssl_read_bytes() method, which is always implemented as ssl3_read_bytes() in all TLS methods. It could be also seen with OpenSSL up to 1.0.2 with non-default methods explicitly set.
author Sergey Kandaurov <pluknet@nginx.com>
date Fri, 29 May 2020 23:10:20 +0300
parents 766bcbb632ee
children 5f46af4707e7
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#!/usr/bin/perl

# (C) Andrey Zelenkov
# (C) Nginx, Inc.

# Tests for server_tokens directive.

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

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 rewrite/)
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        location /200 {
            return 200;
        }

        location /404 {
            return 404;
        }

        location /off {
            server_tokens off;

            location /off/200 {
                return 200;
            }

            location /off/404 {
                return 404;
            }
        }

        location /on {
            server_tokens on;

            location /on/200 {
                return 200;
            }

            location /on/404 {
                return 404;
            }
        }

        location /b {
            server_tokens build;

            location /b/200 {
                return 200;
            }

            location /b/404 {
                return 404;
            }
        }
    }
}

EOF

$t->run()->plan(12);

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

my $re = qr/nginx\/\d+\.\d+\.\d+/;

like(http_get_server('/200'), $re, 'tokens default 200');
like(http_get_server('/404'), $re, 'tokens default 404');
like(http_body('/404'), $re, 'tokens default 404 body');

is(http_get_server('/off/200'), 'nginx', 'tokens off 200');
is(http_get_server('/off/404'), 'nginx', 'tokens off 404');
like(http_body('/off/404'), qr/nginx(?!\/)/, 'tokens off 404 body');

like(http_get_server('/on/200'), $re, 'tokens on 200');
like(http_get_server('/on/404'), $re, 'tokens on 404');
like(http_body('/on/404'), $re, 'tokens on 404 body');

$re = qr/$re \Q($1)\E/ if $t->{_configure_args} =~ /--build=(\S+)/;

like(http_get_server('/b/200'), $re, 'tokens build 200');
like(http_get_server('/b/404'), $re, 'tokens build 404');
like(http_body('/b/404'), $re, 'tokens build 404 body');

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

sub http_body {
	my ($uri) = shift;
	return http_get($uri) =~ /.*?\x0d\x0a?\x0d\x0a?(.*)/ms && $1;
}

sub http_get_server {
	my ($url) = @_;
	return http_get($url) =~ /^Server:\s(.+?)\x0d?$/mi && $1 || undef;
}

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