Mercurial > hg > nginx-tests
view stream_limit_rate2.t @ 1606:e4e0695552ed
Tests: fixed stream_proxy_ssl_conf_command.t.
The stream_proxy_ssl_conf_command.t test used stream return module
to return the response. Since this ignores actual request, but the
perl test code used http_get(). This might result in the request being
sent after the response is returned and the connection closed by the server,
resulting in RST being generated and no response seen by the client at all.
Fix is to use "stream(...)->read()" instead of http_get(), so
no request is sent at all, eliminating possibility of RST being
generated.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 10 Nov 2020 05:03:29 +0300 |
parents | ddbde6c5b0cd |
children | f3ba4c74de31 |
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#!/usr/bin/perl # (C) Andrey Zelenkov # (C) Nginx, Inc. # Tests for stream proxy module, limit rate directives, variables support. ############################################################################### use warnings; use strict; use Test::More; use IO::Select; 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 stream_map/) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { # download and upload rates are set equal to the maximum # number of bytes transmitted # proxy_download_rate value comes from following calculations: # test string length (1000) + whitespace (1) + time string length (10) map $server_port $down { default 1011; %%PORT_8082%% 0; %%PORT_8083%% 1; %%PORT_8085%% 250; } map $server_port $up { default 1000; %%PORT_8082%% 0; %%PORT_8084%% 1; %%PORT_8086%% 250; } proxy_download_rate $down; proxy_upload_rate $up; server { listen 127.0.0.1:8081; proxy_pass 127.0.0.1:8080; } server { listen 127.0.0.1:8082; proxy_pass 127.0.0.1:8080; proxy_download_rate $down; proxy_upload_rate $up; } server { listen 127.0.0.1:8083; proxy_pass 127.0.0.1:8080; proxy_download_rate $down; } server { listen 127.0.0.1:8084; proxy_pass 127.0.0.1:8080; proxy_upload_rate $up; } server { listen 127.0.0.1:8085; proxy_pass 127.0.0.1:8080; proxy_download_rate $down; } server { listen 127.0.0.1:8086; proxy_pass 127.0.0.1:8087; proxy_upload_rate $up; } } EOF $t->run_daemon(\&stream_daemon, port(8080)); $t->run_daemon(\&stream_daemon, port(8087)); $t->try_run('no proxy_download_rate variables')->plan(9); $t->waitforsocket('127.0.0.1:' . port(8080)); $t->waitforsocket('127.0.0.1:' . port(8087)); ############################################################################### my $str = '1234567890' x 100; my %r = response($str, peer => '127.0.0.1:' . port(8081)); is($r{'data'}, $str, 'exact limit'); %r = response($str . 'extra', peer => '127.0.0.1:' . port(8082)); is($r{'data'}, $str . 'extra', 'unlimited'); SKIP: { skip 'unsafe on VM', 3 unless $ENV{TEST_NGINX_UNSAFE}; # if interaction between backend and client is slow then proxy can add extra # bytes to upload/download data %r = response($str . 'extra', peer => '127.0.0.1:' . port(8081)); is($r{'data'}, $str, 'limited'); %r = response($str, peer => '127.0.0.1:' . port(8083), readonce => 1); is($r{'data'}, '1', 'download - one byte'); %r = response($str, peer => '127.0.0.1:' . port(8084)); is($r{'data'}, '1', 'upload - one byte'); } # Five chunks are split with four 1s delays: # the first four chunks are quarters of test string # and the fifth one is some extra data from backend. %r = response($str, peer => '127.0.0.1:' . port(8085)); my $diff = time() - $r{'time'}; cmp_ok($diff, '>=', 4, 'download - time'); is($r{'data'}, $str, 'download - data'); my $time = time(); %r = response($str . 'close', peer => '127.0.0.1:' . port(8086)); $diff = time() - $time; cmp_ok($diff, '>=', 4, 'upload - time'); is($r{'data'}, $str . 'close', 'upload - data'); ############################################################################### sub response { my ($data, %extra) = @_; my $s = stream($extra{peer}); $s->write($data); $data = ''; while (1) { my $buf = $s->read(); last unless length($buf); $data .= $buf; last if $extra{'readonce'}; } $data =~ /([\S]*)\s?(\d+)?/; return ('data' => $1, 'time' => $2) } ############################################################################### sub stream_daemon { my $port = shift; my $server = IO::Socket::INET->new( Proto => 'tcp', LocalAddr => '127.0.0.1', LocalPort => $port, Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; my $sel = IO::Select->new($server); local $SIG{PIPE} = 'IGNORE'; while (my @ready = $sel->can_read) { foreach my $fh (@ready) { if ($server == $fh) { my $new = $fh->accept; $new->autoflush(1); $sel->add($new); } elsif (stream_handle_client($fh)) { $sel->remove($fh); $fh->close; } } } } sub stream_handle_client { my ($client) = @_; log2c("(new connection $client)"); $client->sysread(my $buffer, 65536) or return 1; log2i("$client $buffer"); $buffer .= " " . time() if $client->sockport() eq port(8080); log2o("$client $buffer"); $client->syswrite($buffer); return $client->sockport() eq port(8080) ? 1 : $buffer =~ /close/; } sub log2i { Test::Nginx::log_core('|| <<', @_); } sub log2o { Test::Nginx::log_core('|| >>', @_); } sub log2c { Test::Nginx::log_core('||', @_); } ###############################################################################