Mercurial > hg > nginx-tests
view stream_js_fetch.t @ 1825:3629eda94c1b
Tests: handling of EWOULDBLOCK from sysread() with IO::Socket::SSL.
With IO::Socket::SSL, when select() reports that the socket is readable,
reading from it might still fail with EWOULDBLOCK, since no application
data is available in the socket. In particular, this might happen with
TLSv1.3 when a session ticket is received after the handshake. Fix is
to explicitly check for EWOULDBLOCK errors.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 21 Mar 2023 02:57:39 +0300 |
parents | f98884ad7700 |
children |
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#!/usr/bin/perl # (C) Dmitry Volyntsev # (C) Nginx, Inc. # Tests for stream njs module, fetch method. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::Stream qw/ stream /; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/http stream/) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% js_import test.js; server { listen 127.0.0.1:8080; server_name localhost; location /njs { js_content test.njs; } location /validate { js_content test.validate; } location /success { return 200; } location /fail { return 403; } } } stream { %%TEST_GLOBALS_STREAM%% js_import test.js; server { listen 127.0.0.1:8081; js_preread test.preread_verify; proxy_pass 127.0.0.1:8090; } server { listen 127.0.0.1:8082; js_filter test.filter_verify; proxy_pass 127.0.0.1:8091; } server { listen 127.0.0.1:8083; js_access test.access_ok; proxy_pass 127.0.0.1:8090; } server { listen 127.0.0.1:8084; js_access test.access_nok; proxy_pass 127.0.0.1:8090; } } EOF my $p = port(8080); $t->write_file('test.js', <<EOF); function test_njs(r) { r.return(200, njs.version); } function validate(r) { r.return((r.requestText == 'QZ') ? 200 : 403); } function preread_verify(s) { var collect = Buffer.from([]); s.on('upstream', async function (data, flags) { collect = Buffer.concat([collect, data]); if (collect.length >= 4 && collect.readUInt16BE(0) == 0xabcd) { s.off('upstream'); let reply = await ngx.fetch('http://127.0.0.1:$p/validate', {body: collect.slice(2,4)}); (reply.status == 200) ? s.done(): s.deny(); } else if (collect.length) { s.deny(); } }); } function filter_verify(s) { var collect = Buffer.from([]); s.on('upstream', async function (data, flags) { collect = Buffer.concat([collect, data]); if (collect.length >= 4 && collect.readUInt16BE(0) == 0xabcd) { s.off('upstream'); let reply = await ngx.fetch('http://127.0.0.1:$p/validate', {body: collect.slice(2,4)}); if (reply.status == 200) { s.send(collect.slice(4), flags); } else { s.send("__CLOSE__", flags); } } }); } async function access_ok(s) { let reply = await ngx.fetch('http://127.0.0.1:$p/success'); (reply.status == 200) ? s.allow(): s.deny(); } async function access_nok(s) { let reply = await ngx.fetch('http://127.0.0.1:$p/fail'); (reply.status == 200) ? s.allow(): s.deny(); } export default {njs: test_njs, validate, preread_verify, filter_verify, access_ok, access_nok}; EOF $t->try_run('no stream njs available')->plan(9); $t->run_daemon(\&stream_daemon, port(8090), port(8091)); $t->waitforsocket('127.0.0.1:' . port(8090)); $t->waitforsocket('127.0.0.1:' . port(8091)); ############################################################################### is(stream('127.0.0.1:' . port(8081))->io('###'), '', 'preread not enough'); is(stream('127.0.0.1:' . port(8081))->io("\xAB\xCDQZ##"), "\xAB\xCDQZ##", 'preread validated'); is(stream('127.0.0.1:' . port(8081))->io("\xAC\xCDQZ##"), '', 'preread invalid magic'); is(stream('127.0.0.1:' . port(8081))->io("\xAB\xCDQQ##"), '', 'preread validation failed'); TODO: { todo_skip 'leaves coredump', 3 unless $ENV{TEST_NGINX_UNSAFE} or has_version('0.7.7'); my $s = stream('127.0.0.1:' . port(8082)); is($s->io("\xAB\xCDQZ##", read => 1), '##', 'filter validated'); is($s->io("@@", read => 1), '@@', 'filter off'); is(stream('127.0.0.1:' . port(8082))->io("\xAB\xCDQQ##"), '', 'filter validation failed'); } is(stream('127.0.0.1:' . port(8083))->io('ABC'), 'ABC', 'access fetch ok'); is(stream('127.0.0.1:' . port(8084))->io('ABC'), '', 'access fetch nok'); ############################################################################### sub has_version { my $need = shift; http_get('/njs') =~ /^([.0-9]+)$/m; my @v = split(/\./, $1); my ($n, $v); for $n (split(/\./, $need)) { $v = shift @v || 0; return 0 if $n > $v; return 1 if $v > $n; } return 1; } ############################################################################### sub stream_daemon { my (@ports) = @_; my (@socks, @clients); for my $port (@ports) { my $server = IO::Socket::INET->new( Proto => 'tcp', LocalAddr => "127.0.0.1:$port", Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; push @socks, $server; } my $sel = IO::Select->new(@socks); local $SIG{PIPE} = 'IGNORE'; while (my @ready = $sel->can_read) { foreach my $fh (@ready) { if (grep $_ == $fh, @socks) { my $new = $fh->accept; $new->autoflush(1); $sel->add($new); } elsif (stream_handle_client($fh) || $fh->sockport() == port(8090)) { $sel->remove($fh); $fh->close; } } } } sub stream_handle_client { my ($client) = @_; log2c("(new connection $client)"); $client->sysread(my $buffer, 65536) or return 1; log2i("$client $buffer"); if ($buffer eq "__CLOSE__") { return 1; } log2o("$client $buffer"); $client->syswrite($buffer); return 0; } sub log2i { Test::Nginx::log_core('|| <<', @_); } sub log2o { Test::Nginx::log_core('|| >>', @_); } sub log2c { Test::Nginx::log_core('||', @_); } ###############################################################################