Mercurial > hg > nginx-tests
view ssl_client_escaped_cert.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 | dbce8fb5f5f8 |
children | cdcd75657e52 |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for http ssl module, $ssl_client_escaped_cert variable. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; eval { require IO::Socket::SSL; }; plan(skip_all => 'IO::Socket::SSL not installed') if $@; eval { IO::Socket::SSL::SSL_VERIFY_NONE(); }; plan(skip_all => 'IO::Socket::SSL too old') if $@; my $t = Test::Nginx->new()->has(qw/http http_ssl rewrite/) ->has_daemon('openssl')->plan(3); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% ssl_certificate_key localhost.key; ssl_certificate localhost.crt; ssl_verify_client optional_no_ca; server { listen 127.0.0.1:8443 ssl; server_name localhost; location /cert { return 200 $ssl_client_raw_cert; } location /escaped { return 200 $ssl_client_escaped_cert; } } } EOF $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"; } $t->run(); ############################################################################### my ($cert) = cert('/cert') =~ /\x0d\x0a?\x0d\x0a?(.*)/ms; my ($escaped) = cert('/escaped') =~ /\x0d\x0a?\x0d\x0a?(.*)/ms; ok($cert, 'ssl_client_raw_cert'); ok($escaped, 'ssl_client_escaped_cert'); $escaped =~ s/%([0-9A-Fa-f]{2})/chr(hex($1))/eg; is($escaped, $cert, 'ssl_client_escaped_cert unescape match'); ############################################################################### sub cert { my ($uri) = @_; my $s; eval { local $SIG{ALRM} = sub { die "timeout\n" }; local $SIG{PIPE} = sub { die "sigpipe\n" }; alarm(8); $s = IO::Socket::SSL->new( Proto => 'tcp', PeerAddr => '127.0.0.1', PeerPort => port(8443), SSL_verify_mode => IO::Socket::SSL::SSL_VERIFY_NONE(), SSL_cert_file => "$d/localhost.crt", SSL_key_file => "$d/localhost.key", SSL_error_trap => sub { die $_[1] }, ); alarm(0); }; alarm(0); if ($@) { log_in("died: $@"); return undef; } http_get($uri, socket => $s); } ###############################################################################