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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 c2bbf805388d
children 5ac6efbe5552
line wrap: on
line source

#!/usr/bin/perl

# (C) Maxim Dounin

# Tests for embedded perl module.

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

use warnings;
use strict;

use Test::More;

use Socket qw/ CRLF /;

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 perl rewrite/)->plan(24)
	->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 / {
            set $testvar "TEST";
            perl 'sub {
                use warnings;
                use strict;

                my $r = shift;

                $r->status(204) if $r->args =~ /204/;

                $r->send_http_header("text/plain");

                return OK if $r->header_only;

                my $v = $r->variable("testvar");

                $r->print("testvar: $v\n");

                $r->print("host: ", $r->header_in("Host"), "\n");
                $r->print("xfoo: ", $r->header_in("X-Foo"), "\n");
                $r->print("cookie: ", $r->header_in("Cookie"), "\n");
                $r->print("xff: ", $r->header_in("X-Forwarded-For"), "\n");

                return OK;
            }';
        }

        location /range {
            perl 'sub {
                use warnings;
                use strict;

                my $r = shift;

                $r->header_out("Content-Length", "42");
                $r->allow_ranges();
                $r->send_http_header("text/plain");

                return OK if $r->header_only;

                $r->print("x" x 42);

                return OK;
            }';
        }

        location /body {
            perl 'sub {
                use warnings;
                use strict;

                my $r = shift;

                if ($r->has_request_body(\&post)) {
                    return OK;
                }

                return HTTP_BAD_REQUEST;

                sub post {
                    my $r = shift;
                    $r->send_http_header;
                    $r->print("body: ", $r->request_body, "\n");
                    $r->print("file: ", $r->request_body_file, "\n");
                }
            }';
        }

        location /discard {
            perl 'sub {
                use warnings;
                use strict;

                my $r = shift;

                $r->discard_request_body;

                $r->send_http_header("text/plain");

                return OK if $r->header_only;

                $r->print("host: ", $r->header_in("Host"), "\n");

                return OK;
            }';
        }
    }
}

EOF

$t->run();

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

like(http_get('/'), qr/ 200 .*TEST/s, 'perl response');
like(http_head('/'), qr/ 200 (?!.*TEST)/s, 'perl header_only');
like(http_get('/?204'), qr/ 204 (?!.*TEST)/s, 'perl status, args');

# various $r->header_in() cases

like(http(
	'GET / HTTP/1.0' . CRLF
	. 'Host: localhost' . CRLF . CRLF
), qr/host: localhost/, 'perl header_in known');

like(http(
	'GET / HTTP/1.0' . CRLF
	. 'X-Foo: foo' . CRLF
	. 'Host: localhost' . CRLF . CRLF
), qr/xfoo: foo/, 'perl header_in unknown');

like(http(
	'GET / HTTP/1.0' . CRLF
	. 'Cookie: foo' . CRLF
	. 'Host: localhost' . CRLF . CRLF
), qr/cookie: foo/, 'perl header_in cookie');

like(http(
	'GET / HTTP/1.0' . CRLF
	. 'Cookie: foo1' . CRLF
	. 'Cookie: foo2' . CRLF
	. 'Host: localhost' . CRLF . CRLF
), qr/cookie: foo1; foo2/, 'perl header_in cookie2');

like(http(
	'GET / HTTP/1.0' . CRLF
	. 'X-Forwarded-For: foo' . CRLF
	. 'Host: localhost' . CRLF . CRLF
), qr/xff: foo/, 'perl header_in xff');

like(http(
	'GET / HTTP/1.0' . CRLF
	. 'X-Forwarded-For: foo1' . CRLF
	. 'X-Forwarded-For: foo2' . CRLF
	. 'Host: localhost' . CRLF . CRLF
), qr/xff: foo1, foo2/, 'perl header_in xff2');

# headers_out content-length tests with range filter

like(http_get('/range'), qr/Content-Length: 42.*^x{42}$/ms,
	'perl header_out content-length');

like(http(
	'GET /range HTTP/1.0' . CRLF
	. 'Host: localhost' . CRLF
	. 'Range: bytes=0-1' . CRLF . CRLF
), qr/Content-Length: 2.*^xx$/ms, 'perl header_out content-length range');

like(http(
	'GET /range HTTP/1.0' . CRLF
	. 'Host: localhost' . CRLF
	. 'Range: bytes=0-1,3-5' . CRLF . CRLF
), qr/Content-Length: (?!42).*^xx\x0d.*^xxx\x0d/ms,
	'perl header_out content-length multipart');

TODO: {
local $TODO = 'not yet' unless $t->has_version('1.17.2');

like(http(
	'GET /range HTTP/1.0' . CRLF
	. 'Host: localhost' . CRLF
	. 'Range: bytes=100000-' . CRLF . CRLF
), qr|^\QHTTP/1.1 416\E.*(?!xxx)|ms, 'perl range not satisfiable');

}

TODO: {
todo_skip 'leaves coredump', 1 unless $t->has_version('1.17.1')
	or $ENV{TEST_NGINX_UNSAFE};

like(http(
	'GET / HTTP/1.0' . CRLF
	. 'Host: localhost' . CRLF
	. 'If-Match: tt' . CRLF . CRLF
), qr|200 OK|ms, 'perl precondition failed');

}

# various request body tests

like(http_get('/body'), qr/400 Bad Request/, 'perl no body');

like(http(
	'GET /body HTTP/1.0' . CRLF
	. 'Host: localhost' . CRLF
	. 'Content-Length: 10' . CRLF . CRLF
	. '1234567890'
), qr/body: 1234567890/, 'perl body preread');

like(http(
	'GET /body HTTP/1.0' . CRLF
	. 'Host: localhost' . CRLF
	. 'Content-Length: 10' . CRLF . CRLF,
	sleep => 0.1,
	body => '1234567890'
), qr/body: 1234567890/, 'perl body late');

like(http(
	'GET /body HTTP/1.0' . CRLF
	. 'Host: localhost' . CRLF
	. 'Content-Length: 10' . CRLF . CRLF
	. '12345',
	sleep => 0.1,
	body => '67890'
), qr/body: 1234567890/, 'perl body split');

like(http(
	'GET /body HTTP/1.1' . CRLF
	. 'Host: localhost' . CRLF
	. 'Connection: close' . CRLF
	. 'Transfer-Encoding: chunked' . CRLF . CRLF
	. 'a' . CRLF
	. '1234567890' . CRLF
	. '0' . CRLF . CRLF
), qr/body: 1234567890/, 'perl body chunked');

like(http(
	'GET /body HTTP/1.1' . CRLF
	. 'Host: localhost' . CRLF
	. 'Connection: close' . CRLF
	. 'Transfer-Encoding: chunked' . CRLF . CRLF,
	sleep => 0.1,
	body => 'a' . CRLF . '1234567890' . CRLF . '0' . CRLF . CRLF
), qr/body: 1234567890/, 'perl body chunked late');

like(http(
	'GET /body HTTP/1.1' . CRLF
	. 'Host: localhost' . CRLF
	. 'Connection: close' . CRLF
	. 'Transfer-Encoding: chunked' . CRLF . CRLF
	. 'a' . CRLF
	. '12345',
	sleep => 0.1,
	body => '67890' . CRLF . '0' . CRLF . CRLF
), qr/body: 1234567890/, 'perl body chunked split');

like(http(
	'GET /discard HTTP/1.1' . CRLF
	. 'Host: localhost' . CRLF
	. 'Connection: close' . CRLF
	. 'Transfer-Encoding: chunked' . CRLF . CRLF
	. 'a' . CRLF
	. '1234567890' . CRLF
	. '0' . CRLF . CRLF
), qr/host: localhost/, 'perl body discard');

TODO: {
local $TODO = 'not yet' unless $t->has_version('1.17.2');

like(http(
	'GET /discard HTTP/1.1' . CRLF
	. 'Host: localhost' . CRLF
	. 'Connection: close' . CRLF
	. 'Transfer-Encoding: chunked' . CRLF . CRLF
	. 'ak' . CRLF
	. '1234567890' . CRLF
	. '0' . CRLF . CRLF
), qr/400 Bad Request/, 'perl body discard bad chunk');

like(http(
	'GET /body HTTP/1.1' . CRLF
	. 'Host: localhost' . CRLF
	. 'Connection: close' . CRLF
	. 'Transfer-Encoding: chunked' . CRLF . CRLF
	. 'ak' . CRLF
	. '1234567890' . CRLF
	. '0' . CRLF . CRLF
), qr/400 Bad Request/, 'perl body bad chunk');

}

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