Mercurial > hg > nginx-tests
view 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 | 42d9fd20eeb6 |
children |
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#!/usr/bin/perl # (C) Maxim Dounin # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for unbuffered request body with fastcgi backend. ############################################################################### use warnings; use strict; use Test::More; use Socket qw/ CRLF /; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; eval { require FCGI; }; plan(skip_all => 'FCGI not installed') if $@; plan(skip_all => 'win32') if $^O eq 'MSWin32'; my $t = Test::Nginx->new()->has(qw/http fastcgi rewrite/)->plan(15); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% server { listen 127.0.0.1:8080; server_name localhost; client_header_buffer_size 1k; fastcgi_request_buffering off; fastcgi_param REQUEST_URI $request_uri; fastcgi_param CONTENT_LENGTH $content_length; location / { client_body_buffer_size 2k; fastcgi_pass 127.0.0.1:8081; } location /single { client_body_in_single_buffer on; fastcgi_pass 127.0.0.1:8081; } location /preread { fastcgi_pass 127.0.0.1:8082; } location /error_page { fastcgi_pass 127.0.0.1:8081; error_page 404 /404; fastcgi_intercept_errors on; } location /404 { return 200 "$request_body\n"; } } } EOF $t->run_daemon(\&fastcgi_daemon); $t->run()->waitforsocket('127.0.0.1:' . port(8081)); ############################################################################### like(http_get('/'), qr/X-Body: \x0d\x0a?/ms, 'no body'); like(http_get_body('/', '0123456789'), qr/X-Body: 0123456789\x0d?$/ms, 'body'); like(http_get_body('/', '0123456789' x 128), qr/X-Body: (0123456789){128}\x0d?$/ms, 'body in two buffers'); like(http_get_body('/single', '0123456789' x 128), qr/X-Body: (0123456789){128}\x0d?$/ms, 'body in single buffer'); like(http_get_body('/error_page', '0123456789'), qr/^0123456789$/m, 'body in error page'); # pipelined requests like(http_get_body('/', '0123456789', '0123456789' x 128, '0123456789' x 512, 'foobar'), qr/X-Body: foobar\x0d?$/ms, 'body pipelined'); like(http_get_body('/', '0123456789' x 128, '0123456789' x 512, '0123456789', 'foobar'), qr/X-Body: foobar\x0d?$/ms, 'body pipelined 2'); # interactive tests my $s = get_body('/preread', port(8082), 10); ok($s, 'no preread'); SKIP: { skip 'no preread failed', 3 unless $s; is($s->{upload}('01234'), '01234', 'no preread - body part'); is($s->{upload}('56789'), '56789', 'no preread - body part 2'); like($s->{http_end}(), qr/200 OK/, 'no preread - response'); } $s = get_body('/preread', port(8082), 10, '01234'); ok($s, 'preread'); SKIP: { skip 'preread failed', 3 unless $s; is($s->{preread}, '01234', 'preread - preread'); is($s->{upload}('56789'), '56789', 'preread - body'); like($s->{http_end}(), qr/200 OK/, 'preread - response'); } ############################################################################### sub http_get_body { my $uri = shift; my $last = pop; return http( join '', (map { my $body = $_; "GET $uri HTTP/1.1" . CRLF . "Host: localhost" . CRLF . "Content-Length: " . (length $body) . CRLF . CRLF . $body } @_), "GET $uri HTTP/1.1" . CRLF . "Host: localhost" . CRLF . "Connection: close" . CRLF . "Content-Length: " . (length $last) . CRLF . CRLF . $last ); } # Simple FastCGI responder implementation. # http://www.fastcgi.com/devkit/doc/fcgi-spec.html sub fastcgi_read_record($) { 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), 8)); $socket->write($body); select(undef, undef, undef, 0.1); $socket->write(pack("xxxxxxxx")); select(undef, undef, undef, 0.1); # write some text to stdout and stderr split over multiple network # packets to test if we correctly set pipe length in various places my $tt = "test text, just for test"; $socket->write(pack("CCnnCx", $version, 6, $id, length($tt . $tt), 0) . $tt); select(undef, undef, undef, 0.1); $socket->write($tt . pack("CC", $version, 7)); select(undef, undef, undef, 0.1); $socket->write(pack("nnCx", $id, length($tt), 0)); select(undef, undef, undef, 0.1); $socket->write($tt); select(undef, undef, undef, 0.1); # close stdout $socket->write(pack("CCnnCx", $version, 6, $id, 0, 0)); select(undef, undef, undef, 0.1); # end request $socket->write(pack("CCnnCx", $version, 3, $id, 8, 0)); select(undef, undef, undef, 0.1); $socket->write(pack("NCxxx", 0, 0)); } sub get_body { my ($url, $port, $length, $body) = @_; my ($server, $client, $s); my ($version, $id); $server = IO::Socket::INET->new( Proto => 'tcp', LocalHost => '127.0.0.1', LocalPort => $port, Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; my $r = <<EOF; GET $url HTTP/1.1 Host: localhost Connection: close Content-Length: $length EOF if (defined $body) { $r .= $body; } $s = http($r, start => 1); eval { local $SIG{ALRM} = sub { die "timeout\n" }; local $SIG{PIPE} = sub { die "sigpipe\n" }; alarm(5); $client = $server->accept(); log2c("(new connection $client)"); alarm(0); }; alarm(0); if ($@) { log_in("died: $@"); return undef; } $client->sysread(my $buf, 1024); log2i($buf); $body = ''; while (my $h = fastcgi_read_record(\$buf)) { $version = $h->{version}; $id = $h->{id}; # skip everything unless stdin next if $h->{type} != 5; $body .= $h->{content}; } my $f = { preread => $body }; $f->{upload} = sub { my $buf = shift; eval { local $SIG{ALRM} = sub { die "timeout\n" }; local $SIG{PIPE} = sub { die "sigpipe\n" }; alarm(5); log_out($buf); $s->write($buf); $client->sysread($buf, 1024); log2i($buf); $body = ''; while (my $h = fastcgi_read_record(\$buf)) { # skip everything unless stdin next if $h->{type} != 5; $body .= $h->{content}; } alarm(0); }; alarm(0); if ($@) { log_in("died: $@"); return undef; } return $body; }; $f->{http_end} = sub { my $buf = ''; eval { local $SIG{ALRM} = sub { die "timeout\n" }; local $SIG{PIPE} = sub { die "sigpipe\n" }; alarm(5); fastcgi_respond($client, $version, $id, <<EOF); Status: 200 OK Connection: close X-Port: $port OK EOF $client->close; $s->sysread($buf, 1024); log_in($buf); alarm(0); }; alarm(0); if ($@) { log_in("died: $@"); return undef; } return $buf; }; return $f; } sub log2i { Test::Nginx::log_core('|| <<', @_); } sub log2o { Test::Nginx::log_core('|| >>', @_); } sub log2c { Test::Nginx::log_core('||', @_); } ############################################################################### sub fastcgi_daemon { my $socket = FCGI::OpenSocket('127.0.0.1:' . port(8081), 5); my $request = FCGI::Request(\*STDIN, \*STDOUT, \*STDERR, \%ENV, $socket); my $count; my $body; while( $request->Accept() >= 0 ) { $count++; read(STDIN, $body, $ENV{'CONTENT_LENGTH'} || 0); if ($ENV{REQUEST_URI} eq '/error_page') { print "Status: 404 Not Found" . CRLF . CRLF; next; } print <<EOF; Location: http://localhost/redirect Content-Type: text/html X-Body: $body SEE-THIS $count EOF } FCGI::CloseSocket($socket); } ###############################################################################