Mercurial > hg > nginx-tests
view h2_trailers.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 trailers. ############################################################################### 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/)->plan(22) ->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 / { add_trailer X-Var $host; } location /continuation { # many trailers to send in parts add_trailer X-LongHeader $arg_h; add_trailer X-LongHeader $arg_h; add_trailer X-LongHeader $arg_h; add_trailer X-LongHeader $arg_h; add_trailer X-LongHeader $arg_h; } } } EOF $t->write_file('index.html', 'SEE-THIS'); $t->write_file('empty', ''); $t->write_file('continuation', 'SEE-THIS'); # suppress deprecation warning open OLDERR, ">&", \*STDERR; close STDERR; $t->run(); open STDERR, ">&", \*OLDERR; ############################################################################### my ($s, $sid, $frames, $frame); $s = Test::Nginx::HTTP2->new(); $sid = $s->new_stream({ path => '/' }); $frames = $s->read(all => [{ sid => $sid, fin => 1 }]); @$frames = grep { $_->{type} =~ "HEADERS|DATA" } @$frames; is(@$frames, 3, 'frames'); $frame = shift @$frames; is($frame->{headers}->{':status'}, 200, 'header'); is($frame->{headers}->{'x-var'}, undef, 'header not trailer'); is($frame->{flags}, 4, 'header flags'); $frame = shift @$frames; is($frame->{data}, 'SEE-THIS', 'data'); is($frame->{flags}, 0, 'data flags'); $frame = shift @$frames; is($frame->{headers}->{'x-var'}, 'localhost', 'trailer'); is($frame->{flags}, 5, 'trailer flags'); # with zero content-length $s = Test::Nginx::HTTP2->new(); $sid = $s->new_stream({ path => '/empty' }); $frames = $s->read(all => [{ sid => $sid, fin => 1 }]); @$frames = grep { $_->{type} =~ "HEADERS|DATA" } @$frames; is(@$frames, 2, 'no data - frames'); $frame = shift @$frames; is($frame->{headers}->{':status'}, 200, 'no data - header'); is($frame->{flags}, 4, 'no data - header flags'); $frame = shift @$frames; is($frame->{headers}->{'x-var'}, 'localhost', 'no data - trailer'); is($frame->{flags}, 5, 'no data - trailer flags'); # CONTINUATION in response trailers $s = Test::Nginx::HTTP2->new(); $sid = $s->new_stream({ path => '/continuation?h=' . 'x' x 4000 }); $frames = $s->read(all => [{ sid => $sid, type => 'CONTINUATION' }]); @$frames = grep { $_->{type} =~ "HEADERS|CONTINUATION|DATA" } @$frames; is(@$frames, 4, 'continuation - frames'); $frame = shift @$frames; is($frame->{headers}->{':status'}, 200, 'continuation - header'); is($frame->{flags}, 4, 'continuation - header flags'); $frame = shift @$frames; is($frame->{data}, 'SEE-THIS', 'continuation - data'); is($frame->{flags}, 0, 'continuation - data flags'); $frame = shift @$frames; is($frame->{type}, 'HEADERS', 'continuation - trailer'); is($frame->{flags}, 1, 'continuation - trailer flags'); $frame = shift @$frames; is($frame->{type}, 'CONTINUATION', 'continuation - trailer continuation'); is($frame->{flags}, 4, 'continuation - trailer continuation flags'); ###############################################################################