view mirror_proxy.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 97c8280de681
children 8b7ab9245916
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#!/usr/bin/perl

# (C) Sergey Kandaurov
# (C) Nginx, Inc.

# Tests for http mirror module and it's interaction with proxy.

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

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 proxy mirror rewrite limit_req/);

$t->write_file_expand('nginx.conf', <<'EOF')->plan(7);

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    limit_req_zone  $uri  zone=slow:1m  rate=30r/m;
    log_format  test  $request_uri:$request_body;

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        location / {
            mirror /mirror;
            proxy_pass http://127.0.0.1:8081;
        }

        location /off {
            mirror /mirror/off;
            mirror_request_body off;
            proxy_pass http://127.0.0.1:8081;
        }

        location /mirror {
            internal;
            proxy_pass http://127.0.0.1:8082;
            limit_req  zone=slow burst=1;
        }
    }

    server {
        listen       127.0.0.1:8081;
        listen       127.0.0.1:8082;
        server_name  localhost;

        location / {
            client_body_timeout 1s;
            proxy_pass http://127.0.0.1:$server_port/return204;
            access_log %%TESTDIR%%/test.log test;
            add_header X-Body $request_body;
        }

        location /return204 {
            return 204;
        }
    }
}

EOF

$t->run();

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

like(http_post('/'), qr/X-Body: 1234567890\x0d?$/m, 'mirror proxy');
like(http_post('/off'), qr/X-Body: 1234567890\x0d?$/m, 'mirror_request_body');

# delayed subrequest should not affect main request processing nor stuck itself

SKIP: {
skip 'hang on win32', 1 if $^O eq 'MSWin32' and !$ENV{TEST_NGINX_UNSAFE};

TODO: {
local $TODO = 'not yet';

like(http_post('/delay?1'), qr/X-Body: 1234567890\x0d?$/m, 'mirror delay');

}

}

$t->todo_alerts() unless $^O eq 'MSWin32';
$t->stop();

my $log = $t->read_file('test.log');
like($log, qr!^/:1234567890$!m, 'log - request body');
like($log, qr!^/mirror:1234567890$!m, 'log - request body in mirror');
like($log, qr!^/off:1234567890$!m, 'log - mirror_request_body off');
like($log, qr!^/mirror/off:-$!m,, 'log - mirror_request_body off in mirror');

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

sub http_post {
	my ($url) = @_;

	http(<<EOF);
POST $url HTTP/1.0
Host: localhost
Content-Length: 10

1234567890
EOF
}

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