Mercurial > hg > nginx-tests
view stream_proxy_next_upstream.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 | 5ac6efbe5552 |
children |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for stream proxy module, proxy_next_upstream directive and friends. ############################################################################### 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/stream/)->plan(5); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% upstream u { server 127.0.0.1:8083 max_fails=0; server 127.0.0.1:8084 max_fails=0; server 127.0.0.1:8085 backup; } upstream u2 { server 127.0.0.1:8083; server 127.0.0.1:8085 backup; } upstream u3 { server 127.0.0.1:8083; server 127.0.0.1:8085 down; } proxy_connect_timeout 2; server { listen 127.0.0.1:8080; proxy_pass u; proxy_next_upstream off; } server { listen 127.0.0.1:8081; proxy_pass u2; proxy_next_upstream on; } server { listen 127.0.0.1:8082; proxy_pass u; proxy_next_upstream on; proxy_next_upstream_tries 2; } log_format test "$upstream_addr"; server { listen 127.0.0.1:8086; proxy_pass u3; proxy_next_upstream on; access_log %%TESTDIR%%/test.log test; } } EOF $t->run_daemon(\&stream_daemon); $t->run()->waitforsocket('127.0.0.1:' . port(8085)); ############################################################################### is(stream('127.0.0.1:' . port(8080))->io('.'), '', 'next off'); is(stream('127.0.0.1:' . port(8081))->io('.'), 'SEE-THIS', 'next on'); # make sure backup is not tried is(stream('127.0.0.1:' . port(8082))->io('.'), '', 'next tries'); # make sure backend marked as down doesn't count towards "no live upstreams" is(stream('127.0.0.1:' . port(8086))->io('.'), '', 'next down'); $t->stop(); is($t->read_file('test.log'), '127.0.0.1:' . port(8083) . "\n", 'next down log'); ############################################################################### sub stream_daemon { my $server = IO::Socket::INET->new( Proto => 'tcp', LocalHost => '127.0.0.1:' . port(8085), Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; local $SIG{PIPE} = 'IGNORE'; while (my $client = $server->accept()) { $client->autoflush(1); log2c("(new connection $client)"); $client->sysread(my $buffer, 65536) or next; log2i("$client $buffer"); $buffer = 'SEE-THIS'; log2o("$client $buffer"); $client->syswrite($buffer); } continue { close $client; } } sub log2i { Test::Nginx::log_core('|| <<', @_); } sub log2o { Test::Nginx::log_core('|| >>', @_); } sub log2c { Test::Nginx::log_core('||', @_); } ###############################################################################