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annotate h3_limit_req.t @ 1888:cc13f7b098db

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Tests: avoid premature stream reset in h3_limit_req.t. STREAM and RESET_STREAM frames could be batched, which prevents the stream from being processed and changes the status code. The fix is to wait for the stream acknowledgment. Here we just look at the largest acknowledged, this should be enough for simple cases.
author Sergey Kandaurov <pluknet@nginx.com>
date Tue, 04 Apr 2023 00:33:54 +0400
parents 12d950e1165c
children 8b74936ff2ac
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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12d950e1165c Tests: HTTP/3 tests with limit_req.
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1 #!/usr/bin/perl
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2
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3 # (C) Sergey Kandaurov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for HTTP/3 protocol with limit_req.
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7
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8 ###############################################################################
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9
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10 use warnings;
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11 use strict;
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12
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13 use Test::More;
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14
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15 BEGIN { use FindBin; chdir($FindBin::Bin); }
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16
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17 use lib 'lib';
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18 use Test::Nginx;
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19 use Test::Nginx::HTTP3;
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20
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21 ###############################################################################
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22
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23 select STDERR; $| = 1;
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24 select STDOUT; $| = 1;
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25
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26 eval { require Crypt::Misc; die if $Crypt::Misc::VERSION < 0.067; };
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27 plan(skip_all => 'CryptX version >= 0.067 required') if $@;
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28
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29 my $t = Test::Nginx->new()->has(qw/http http_v3 proxy limit_req/)
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30 ->has_daemon('openssl')->plan(6);
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31
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32 $t->write_file_expand('nginx.conf', <<'EOF');
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33
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34 %%TEST_GLOBALS%%
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35
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36 daemon off;
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37
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38 events {
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39 }
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40
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41 http {
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42 %%TEST_GLOBALS_HTTP%%
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43
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44 ssl_certificate_key localhost.key;
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45 ssl_certificate localhost.crt;
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46
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47 limit_req_zone $binary_remote_addr zone=req:1m rate=1r/s;
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48
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49 log_format test $status;
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50
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51 server {
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52 listen 127.0.0.1:%%PORT_8980_UDP%% quic;
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53 listen 127.0.0.1:8081;
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54 server_name localhost;
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55
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56 location / {
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57 add_header X-Body $request_body;
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58 add_header X-Body-File $request_body_file;
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59 client_body_in_file_only on;
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60 proxy_pass http://127.0.0.1:8081/stub;
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61 limit_req zone=req burst=2;
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62 access_log %%TESTDIR%%/test.log test;
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63 }
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64
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65 location /stub { }
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66 }
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67 }
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68
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69 EOF
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70
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71 $t->write_file('openssl.conf', <<EOF);
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72 [ req ]
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73 default_bits = 2048
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74 encrypt_key = no
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75 distinguished_name = req_distinguished_name
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76 [ req_distinguished_name ]
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77 EOF
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78
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79 my $d = $t->testdir();
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80
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81 foreach my $name ('localhost') {
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82 system('openssl req -x509 -new '
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83 . "-config $d/openssl.conf -subj /CN=$name/ "
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84 . "-out $d/$name.crt -keyout $d/$name.key "
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85 . ">>$d/openssl.out 2>&1") == 0
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86 or die "Can't create certificate for $name: $!\n";
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87 }
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88
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89 $t->write_file('stub', '');
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90 $t->run();
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91
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92 ###############################################################################
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93
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94 # request body delayed in limit_req
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95
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96 my $s = Test::Nginx::HTTP3->new();
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97 my $sid = $s->new_stream({ path => '/', body_more => 1 });
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98 $s->h3_body('TEST', $sid);
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99 my $frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
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100
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101 my ($frame) = grep { $_->{type} eq "HEADERS" } @$frames;
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102 is(read_body_file($frame->{headers}->{'x-body-file'}), 'TEST',
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103 'request body - limit req');
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104
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105 $s = Test::Nginx::HTTP3->new();
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106 $sid = $s->new_stream({ path => '/', body_more => 1 });
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107 select undef, undef, undef, 1.1;
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108 $s->h3_body('TEST', $sid);
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109 $frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
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110
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111 ($frame) = grep { $_->{type} eq "HEADERS" } @$frames;
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112 is(read_body_file($frame->{headers}->{'x-body-file'}), 'TEST',
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113 'request body - limit req - limited');
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114
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115 # request body with request
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116
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117 $s = Test::Nginx::HTTP3->new();
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118 $sid = $s->new_stream({ path => '/', body => 'TEST2' });
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119 select undef, undef, undef, 1.1;
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120 $frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
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121
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122 ($frame) = grep { $_->{type} eq "HEADERS" } @$frames;
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123 is(read_body_file($frame->{headers}->{'x-body-file'}), 'TEST2',
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124 'request body - limit req - with headers');
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125
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126 # delayed with an empty DATA frame
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127
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128 $s = Test::Nginx::HTTP3->new();
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129 $sid = $s->new_stream({ path => '/', body_more => 1 });
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130 $s->h3_body('', $sid);
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131 select undef, undef, undef, 1.1;
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132 $frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
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133
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134 ($frame) = grep { $_->{type} eq "HEADERS" } @$frames;
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135 is($frame->{headers}->{':status'}, 200, 'request body - limit req - empty');
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136
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137 # detect RESET_STREAM while request is delayed
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138
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139 $s = Test::Nginx::HTTP3->new();
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140 $sid = $s->new_stream({ path => '/', body_more => 1 });
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141 wait_ack($s);
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142
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143 $s->reset_stream($sid, 0x010c);
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144 $frames = $s->read(all => [{ type => 'DECODER_C' }]);
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145
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146 ($frame) = grep { $_->{type} eq "DECODER_C" } @$frames;
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147 is($frame->{'val'}, $sid, 'reset stream - cancellation');
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148
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149 $t->stop();
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150
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151 like($t->read_file('test.log'), qr/499/, 'reset stream - log');
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152
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153 ###############################################################################
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154
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155 sub wait_ack {
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156 my ($s) = @_;
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157 my $last = $s->{pn}[0][3];
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158
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159 for (1 .. 5) {
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160 my $frames = $s->read(all => [ {type => 'ACK' }]);
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161 my ($frame) = grep { $_->{type} eq "ACK" } @$frames;
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162 last unless $frame->{largest} < $last;
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163 }
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164 }
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165
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166 sub read_body_file {
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167 my ($path) = @_;
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168 return unless $path;
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169 open FILE, $path or return "$!";
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170 local $/;
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171 my $content = <FILE>;
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172 close FILE;
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173 return $content;
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174 }
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175
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176 ###############################################################################