Mercurial > hg > nginx-tests
view proxy_websocket.t @ 1236:93f749c1d5c5
Tests: fixed parallel tests execution with UDP.
Previously, when checking ports availability, a UDP socket was always created
first, then a TCP socket was created. On success, one of UDP and TCP sockets
was closed (depending on the "udp" option) and the second one was used to busy
this port in other scripts. This lead to the following problem: in an attempt
to reopen a UDP socket used in a given testing script it could be stolen by
another script as part of checking ports availability.
To solve this problem, UDP and TCP ports were split into two non-overlapping
ranges: TCP ports are only used in the range 8000-8499, and UDP ports - in
the range 8500-8999. In addition, the order of creating sockets in UDP tests
has been reversed: now a TCP socket used as a lock precedes a UDP socket.
author | Andrey Zelenkov <zelenkov@nginx.com> |
---|---|
date | Thu, 26 Oct 2017 18:00:21 +0300 |
parents | 882267679006 |
children |
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#!/usr/bin/perl # (C) Maxim Dounin # Tests for http proxy websockets support. ############################################################################### use warnings; use strict; use Test::More; use IO::Poll; use IO::Select; use IO::Socket::INET; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; eval { require Protocol::WebSocket::Handshake::Client; require Protocol::WebSocket::Handshake::Server; require Protocol::WebSocket::Frame; }; plan(skip_all => 'Protocol::WebSocket not installed') if $@; my $t = Test::Nginx->new()->has(qw/http proxy/) ->write_file_expand('nginx.conf', <<'EOF')->plan(26); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% server { listen 127.0.0.1:8080; server_name localhost; location / { proxy_pass http://127.0.0.1:8081; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "Upgrade"; proxy_read_timeout 2s; send_timeout 2s; } } } EOF $t->run_daemon(\&websocket_fake_daemon); $t->run(); $t->waitforsocket('127.0.0.1:' . port(8081)) or die "Can't start test backend"; ############################################################################### # establish websocket connection my $s = websocket_connect(); ok($s, "websocket handshake"); SKIP: { skip "handshake failed", 22 unless $s; # send a frame websocket_write($s, 'foo'); is(websocket_read($s), 'bar', "websocket response"); # send some big frame websocket_write($s, 'foo' x 16384); like(websocket_read($s), qr/^(bar){16384}$/, "websocket big response"); # send multiple frames for my $i (1 .. 10) { websocket_write($s, ('foo' x 16384) . $i); websocket_write($s, 'bazz' . $i); } for my $i (1 .. 10) { like(websocket_read($s), qr/^(bar){16384}\d+$/, "websocket $i"); is(websocket_read($s), 'bazz' . $i, "websocket small $i"); } } # establish websocket connection with some pipelined data # and make sure they are correctly passed upstream undef $s; $s = websocket_connect("foo"); ok($s, "handshake pipelined"); SKIP: { skip "handshake failed", 2 unless $s; is(websocket_read($s), "bar", "response pipelined"); websocket_write($s, "foo"); is(websocket_read($s), "bar", "next to pipelined"); } ############################################################################### sub websocket_connect { my ($message) = @_; my $s = IO::Socket::INET->new( Proto => 'tcp', PeerAddr => '127.0.0.1:' . port(8080) ) or die "Can't connect to nginx: $!\n"; my $h = Protocol::WebSocket::Handshake::Client->new( url => 'ws://localhost'); # send request, $h->to_string my $buf = $h->to_string; $buf .= Protocol::WebSocket::Frame->new($message)->to_bytes if $message; local $SIG{PIPE} = 'IGNORE'; log_out($buf); $s->syswrite($buf); # read response my $got = ''; $buf = ''; $s->blocking(0); while (IO::Select->new($s)->can_read(1.5)) { my $n = $s->sysread($buf, 1024); last unless $n; log_in($buf); $got .= $buf; last if $got =~ /\x0d?\x0a\x0d?\x0a$/; } # parse server response $h->parse($got); # store the rest for later websocket_read() # see websocket_read() for details ${*$s}->{_websocket_frame} ||= Protocol::WebSocket::Frame->new(); ${*$s}->{_websocket_frame}->append($got); return $s if $h->is_done; } sub websocket_write { my ($s, $message) = @_; my $frame = Protocol::WebSocket::Frame->new($message); local $SIG{PIPE} = 'IGNORE'; $s->blocking(1); log_out($frame->to_bytes); $s->syswrite($frame->to_bytes); } sub websocket_read { my ($s) = @_; my ($buf, $got); # store frame object in socket itself to simplify things # this works as $s is IO::Handle, see man IO::Handle ${*$s}->{_websocket_frame} ||= Protocol::WebSocket::Frame->new(); my $frame = ${*$s}->{_websocket_frame}; $s->blocking(0); $got = $frame->next(); return $got if defined $got; while (IO::Select->new($s)->can_read(1.5)) { my $n = $s->sysread($buf, 65536); return $got unless $n; log_in($buf); $frame->append($buf); $got = $frame->next(); return $got if defined $got; } } ############################################################################### sub websocket_fake_daemon { my $server = IO::Socket::INET->new( Proto => 'tcp', LocalAddr => '127.0.0.1:' . port(8081), Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; while (my $client = $server->accept()) { websocket_handle_client($client); } } sub websocket_handle_client { my ($client) = @_; $client->autoflush(1); $client->blocking(0); my $poll = IO::Poll->new; my $hs = Protocol::WebSocket::Handshake::Server->new; my $frame = Protocol::WebSocket::Frame->new; my $buffer = ''; my $closed; my $n; log2c("(new connection $client)"); while (1) { $poll->mask($client => ($buffer ? POLLIN|POLLOUT : POLLIN)); my $p = $poll->poll(0.5); log2c("(poll $p)"); foreach ($poll->handles(POLLIN)) { $n = $client->sysread(my $chunk, 65536); return unless $n; log2i($chunk); if (!$hs->is_done) { unless (defined $hs->parse($chunk)) { log2c("(error: " . $hs->error . ")"); return; } if ($hs->is_done) { $buffer = $hs->to_string; log2o($buffer); } log2c("(parse: $chunk)"); } $frame->append($chunk); while (defined(my $message = $frame->next)) { my $f; if ($frame->is_close) { log2c("(close frame)"); $closed = 1; $f = $frame->new(type => 'close') ->to_bytes; } else { $message =~ s/foo/bar/g; $f = $frame->new($message)->to_bytes; } log2o($f); $buffer .= $f; } } foreach my $writer ($poll->handles(POLLOUT)) { next unless length $buffer; $n = $writer->syswrite($buffer); substr $buffer, 0, $n, ''; } if ($closed && length $buffer == 0) { log2c("(closed)"); return; } } } sub log2i { Test::Nginx::log_core('|| <<', @_); } sub log2o { Test::Nginx::log_core('|| >>', @_); } sub log2c { Test::Nginx::log_core('||', @_); } ###############################################################################