Mercurial > hg > nginx-tests
view stream_proxy_half_close.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 | 8bdf548487f6 |
children | 2a0a6035a1af |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for stream proxy_half_close directive. ############################################################################### use warnings; use strict; use Test::More; use IO::Select; 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/stream/); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% server { listen 127.0.0.1:8080; proxy_pass 127.0.0.1:8081; proxy_half_close on; } } EOF $t->try_run('no proxy_half_close')->plan(2); ############################################################################### my ($s, $u) = pair(8080, 8081); shutdown($u, 1); is(proxy($s, $u, 'SEE'), 'SEE', 'half close upstream'); ($s, $u) = pair(8080, 8081); shutdown($s, 1); is(proxy($u, $s, 'SEE'), 'SEE', 'half close client'); ############################################################################### sub pair { my ($server, $backend) = @_; my $listen = IO::Socket::INET->new( LocalHost => '127.0.0.1:' . port($backend), Listen => 5, Reuse => 1, ) or die "Can't listen on $server: $!\n"; my $connect = IO::Socket::INET->new( Proto => 'tcp', PeerHost => '127.0.0.1:' . port($server), ) or die "Can't connect to $server: $!\n"; my $accept = $listen->accept() if IO::Select->new($listen)->can_read(3); return $connect, $accept; } sub proxy { my ($from, $to, $msg) = @_; proxy_from($from, $msg); return proxy_to($to); } sub proxy_from { my ($s, $msg) = @_; local $SIG{PIPE} = 'IGNORE'; while (IO::Select->new($s)->can_write(5)) { my $n = $s->syswrite($msg); log_out(substr($msg, 0, $n)); last unless $n; $msg = substr($msg, $n); last unless length $msg; } } sub proxy_to { my ($s) = @_; my $buf; $s->sysread($buf, 1024) if IO::Select->new($s)->can_read(5); log_in($buf); return $buf; } ###############################################################################