Mercurial > hg > nginx-tests
view h2_fastcgi_request_buffering.t @ 1983:c7315caf2110
Tests: optimized processing of large QUIC packets with padding.
Path MTU discovery packets might contain a lot of padding, and creating
a copy of the whole buffer for each PADDING frame, which is just one
byte with type 0, consumes lots of resources. This was seen to result
in flapping of at least h3_keepalive.t and h3_ssl_early_data.t tests.
Fix is to copy at most 8 bytes for parse_int() calls when parsing
frame types.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 03 Jun 2024 04:17:28 +0300 |
parents | 236d038dc04a |
children | 11463d379570 |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for HTTP/2 protocol with unbuffered request body and fastcgi backend. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::HTTP2; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/http http_v2 fastcgi/)->plan(48); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% server { listen 127.0.0.1:8080 http2; server_name localhost; location / { fastcgi_request_buffering off; fastcgi_pass 127.0.0.1:8081; fastcgi_param REQUEST_URI $request_uri; client_body_buffer_size 1k; } } } EOF # suppress deprecation warning open OLDERR, ">&", \*STDERR; close STDERR; $t->run(); open STDERR, ">&", \*OLDERR; ############################################################################### # unbuffered request body to fastcgi my $f = get_body('/'); ok($f->{headers}, 'request'); is($f->{upload}('01234', body_more => 1), '01234', 'part'); is($f->{upload}('56789'), '56789_eos', 'part 2'); is($f->{http_end}(), 200, 'response'); $f = get_body('/'); ok($f->{headers}, 'buffer'); is($f->{upload}('0123' x 128, body_more => 1), '0123' x 128, 'buffer - below'); is($f->{upload}('4567' x 128, body_more => 1), '4567' x 128, 'buffer - equal'); is($f->{upload}('89AB' x 128), '89AB' x 128 . '_eos', 'buffer - above'); is($f->{http_end}(), 200, 'buffer - response'); $f = get_body('/'); ok($f->{headers}, 'many'); is($f->{upload}('01234many', body_split => [ 5 ], body_more => 1), '01234many', 'many - part'); is($f->{upload}('56789many', body_split => [ 5 ]), '56789many_eos', 'many - part 2'); is($f->{http_end}(), 200, 'many - response'); $f = get_body('/'); ok($f->{headers}, 'empty'); is($f->{upload}('', body_more => 1, wait => 0.2), '', 'empty - part'); is($f->{upload}(''), '_eos', 'empty - part 2'); is($f->{http_end}(), 200, 'empty - response'); $f = get_body('/'); ok($f->{headers}, 'split'); is($f->{upload}('0123456789', split => [ 14 ]), '0123456789_eos', 'split - part'); is($f->{http_end}(), 200, 'split - response'); # unbuffered request body to fastcgi, content-length $f = get_body('/', 'content-length' => 10); ok($f->{headers}, 'cl'); is($f->{upload}('01234', body_more => 1), '01234', 'cl - part'); is($f->{upload}('56789'), '56789_eos', 'cl - part 2'); is($f->{http_end}(), 200, 'cl - response'); $f = get_body('/', 'content-length' => 1536); ok($f->{headers}, 'cl buffer'); is($f->{upload}('0123' x 128, body_more => 1), '0123' x 128, 'cl buffer - below'); is($f->{upload}('4567' x 128, body_more => 1), '4567' x 128, 'cl buffer - equal'); is($f->{upload}('89AB' x 128), '89AB' x 128 . '_eos', 'cl buffer - above'); is($f->{http_end}(), 200, 'cl buffer - response'); $f = get_body('/', 'content-length' => 10); ok($f->{headers}, 'cl much'); is($f->{upload}('0123456789', body_more => 1), '0123456789', 'cl much - part'); is($f->{upload}('many'), '', 'cl much - part 2'); is($f->{http_end}(), 400, 'cl much - response'); $f = get_body('/', 'content-length' => 10); ok($f->{headers}, 'cl less'); is($f->{upload}('0123', body_more => 1), '0123', 'cl less - part'); is($f->{upload}('56789'), '', 'cl less - part 2'); is($f->{http_end}(), 400, 'cl less - response'); $f = get_body('/', 'content-length' => 18); ok($f->{headers}, 'cl many'); is($f->{upload}('01234many', body_split => [ 5 ], body_more => 1), '01234many', 'cl many - part'); is($f->{upload}('56789many', body_split => [ 5 ]), '56789many_eos', 'cl many - part 2'); is($f->{http_end}(), 200, 'cl many - response'); $f = get_body('/', 'content-length' => 0); ok($f->{headers}, 'cl empty'); is($f->{upload}('', body_more => 1, wait => 0.2), '', 'cl empty - part'); is($f->{upload}(''), '_eos', 'cl empty - part 2'); is($f->{http_end}(), 200, 'cl empty - response'); $f = get_body('/', 'content-length' => 10); ok($f->{headers}, 'cl split'); is($f->{upload}('0123456789', split => [ 14 ]), '0123456789_eos', 'cl split'); is($f->{http_end}(), 200, 'cl split - response'); ############################################################################### # Simple FastCGI responder implementation. # http://www.fastcgi.com/devkit/doc/fcgi-spec.html sub fastcgi_read_record($) { my ($buf) = @_; my $h; return undef unless length $$buf; @{$h}{qw/ version type id clen plen /} = unpack("CCnnC", $$buf); $h->{content} = substr $$buf, 8, $h->{clen}; $h->{padding} = substr $$buf, 8 + $h->{clen}, $h->{plen}; $$buf = substr $$buf, 8 + $h->{clen} + $h->{plen}; return $h; } sub fastcgi_respond($$$$) { my ($socket, $version, $id, $body) = @_; # stdout $socket->write(pack("CCnnCx", $version, 6, $id, length($body), 0)); $socket->write($body); # close stdout $socket->write(pack("CCnnCx", $version, 6, $id, 0, 0)); # end request $socket->write(pack("CCnnCx", $version, 3, $id, 8, 0)); $socket->write(pack("NCxxx", 0, 0)); } sub get_body { my ($url, %extra) = @_; my ($server, $client, $f); $server = IO::Socket::INET->new( Proto => 'tcp', LocalHost => '127.0.0.1', LocalPort => port(8081), Listen => 5, Timeout => 3, Reuse => 1 ) or die "Can't create listening socket: $!\n"; my $s = Test::Nginx::HTTP2->new(); my $sid = exists $extra{'content-length'} ? $s->new_stream({ headers => [ { name => ':method', value => 'GET' }, { name => ':scheme', value => 'http' }, { name => ':path', value => $url, }, { name => ':authority', value => 'localhost' }, { name => 'content-length', value => $extra{'content-length'} }], body_more => 1 }) : $s->new_stream({ path => $url, body_more => 1 }); $client = $server->accept() or return; log2c("(new connection $client)"); $f->{headers} = backend_read($client); my $h = fastcgi_read_record(\$f->{headers}); my $version = $h->{version}; my $id = $h->{id}; $f->{upload} = sub { my ($body, %extra) = @_; my $len = length($body); my $wait = $extra{wait}; $s->h2_body($body, { %extra }); $body = ''; for (1 .. 10) { my $buf = backend_read($client, $wait) or return ''; while (my $h = fastcgi_read_record(\$buf)) { # skip everything unless stdin next if $h->{type} != 5; $body .= $h->{content}; # mark the end-of-stream indication $body .= "_eos" if $h->{clen} == 0; } last if length($body) >= $len; } return $body; }; $f->{http_end} = sub { local $SIG{PIPE} = 'IGNORE'; fastcgi_respond($client, $version, $id, <<EOF); Status: 200 OK Connection: close OK EOF $client->close; my $frames = $s->read(all => [{ sid => $sid, fin => 1 }]); my ($frame) = grep { $_->{type} eq "HEADERS" } @$frames; return $frame->{headers}->{':status'}; }; return $f; } sub backend_read { my ($s, $timo) = @_; my $buf = ''; if (IO::Select->new($s)->can_read($timo || 8)) { $s->sysread($buf, 16384) or return; log2i($buf); } return $buf; } sub log2i { Test::Nginx::log_core('|| <<', @_); } sub log2o { Test::Nginx::log_core('|| >>', @_); } sub log2c { Test::Nginx::log_core('||', @_); } ###############################################################################