Mercurial > hg > ngx_http_upstream_keepalive

annotate t/fastcgi-keepalive.t @ 16:28f882414188 0.2

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Keepalive: better fastcgi testing. With previous fastcgi keepalive patches minimal number of bytes that should be fed to input filter (pipe->length) wasn't always set correctly. Try harder to catch this. Reported by: Denis F. Latypoff
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 23 Apr 2009 05:33:03 +0400
parents 4fe7e417c424
children 8d8eaaf07663
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/perl
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2
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3 # (C) Maxim Dounin
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4
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5 # Test for fastcgi backend with keepalive.
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6
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7 ###############################################################################
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8
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9 use warnings;
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10 use strict;
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11
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12 use Test::More;
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13 use Test::Nginx;
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14
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15 ###############################################################################
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16
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17 select STDERR; $| = 1;
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18 select STDOUT; $| = 1;
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19
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20 my $t = Test::Nginx->new()->plan(6)
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21 ->write_file_expand('nginx.conf', <<'EOF');
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22
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23 master_process off;
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24 daemon off;
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25
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26 events {
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27 worker_connections 1024;
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28 }
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29
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30 http {
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31 access_log off;
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32
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33 client_body_temp_path %%TESTDIR%%/client_body_temp;
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34 fastcgi_temp_path %%TESTDIR%%/fastcgi_temp;
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35 proxy_temp_path %%TESTDIR%%/proxy_temp;
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36
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37 upstream backend {
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38 server 127.0.0.1:8081;
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39 keepalive 1;
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40 }
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41
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42 server {
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43 listen localhost:8080;
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44 server_name localhost;
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45
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46 location / {
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47 fastcgi_pass backend;
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48 }
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49 }
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50 }
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51
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52 EOF
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53
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54 $t->run_daemon(\&fastcgi_test_daemon);
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55 $t->run();
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56
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57 ###############################################################################
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58
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59 {
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60 local $TODO = 'needs experimental patches';
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61 local $SIG{__WARN__} = sub {};
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62
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63 like(http_get('/'), qr/SEE-THIS/, 'fastcgi request');
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64 like(http_get('/redir'), qr/302/, 'fastcgi redirect');
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65 like(http_get('/'), qr/^request: 3$/m, 'fastcgi third request');
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66
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67 like(http_get('/single'), qr/^connection: 1$/m, 'single connection used');
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68
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69 }
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70
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71 # New connection to fastcgi application should be established after HEAD
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72 # requests since nginx doesn't read whole response (as it doesn't need
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73 # body).
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74
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75 unlike(http_head('/head'), qr/SEE-THIS/, 'no data in HEAD');
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76
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77 {
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78 local $TODO = 'needs experimental patches';
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79 local $SIG{__WARN__} = sub {};
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80
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81 like(http_get('/after'), qr/^connection: 2$/m, 'new connection after HEAD');
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82
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83 }
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84
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85 ###############################################################################
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86
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87 # Simple FastCGI responder implementation. Unlike FCGI and FCGI::Async it's
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88 # able to count connections.
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89
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90 # http://www.fastcgi.com/devkit/doc/fcgi-spec.html
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91
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92 sub fastcgi_read_record($) {
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93 my ($socket) = @_;
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94
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95 my ($n, $h, $header);
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96
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97 $n = $socket->read($header, 8);
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98 return undef if !defined $n or $n != 8;
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99
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100 @{$h}{qw/ version type id clen plen /} = unpack("CCnnC", $header);
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101
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102 $n = $socket->read($h->{content}, $h->{clen});
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103 return undef if $n != $h->{clen};
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104
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105 $n = $socket->read($h->{padding}, $h->{plen});
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106 return undef if $n != $h->{plen};
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107
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108 $h->{socket} = $socket;
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109 return $h;
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110 }
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111
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112 sub fastcgi_respond($$) {
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113 my ($h, $body) = @_;
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114
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115 # stdout
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116 $h->{socket}->write(pack("CCnnCx", $h->{version}, 6, $h->{id},
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117 length($body), 0));
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118 $h->{socket}->write($body);
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119
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120 # write some text to stdout and stderr splitted over multiple network
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121 # packets to test if we correctly set pipe length in various places
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122
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123 my $tt = "test text, just for test";
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124
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125 $h->{socket}->write(pack("CCnnCx", $h->{version}, 6, $h->{id},
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126 length($tt . $tt), 0) . $tt);
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127 select(undef, undef, undef, 0.1);
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128 $h->{socket}->write($tt . pack("CC", $h->{version}, 7));
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129 select(undef, undef, undef, 0.1);
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130 $h->{socket}->write(pack("nnCx", $h->{id}, length($tt), 0));
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131 $h->{socket}->write($tt);
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132
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133 # close stdout
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134 $h->{socket}->write(pack("CCnnCx", $h->{version}, 6, $h->{id}, 0, 0));
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135
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136 select(undef, undef, undef, 0.1);
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137
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138 # end request
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139 $h->{socket}->write(pack("CCnnCx", $h->{version}, 3, $h->{id}, 8, 0));
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140 $h->{socket}->write(pack("NCxxx", 0, 0));
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141 }
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142
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143 sub fastcgi_test_daemon {
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144 my $server = IO::Socket::INET->new(
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145 Proto => 'tcp',
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146 LocalAddr => '127.0.0.1:8081',
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147 Listen => 5,
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148 Reuse => 1
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149 )
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150 or die "Can't create listening socket: $!\n";
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151
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152 local $SIG{PIPE} = 'IGNORE';
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153
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154 my $ccount = 0;
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155 my $rcount = 0;
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156
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157 while (my $client = $server->accept()) {
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158 $client->autoflush(1);
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159 Test::Nginx::log_core('||', "fastcgi connection");
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160
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161 $ccount++;
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162
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163 while (my $h = fastcgi_read_record($client)) {
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164 Test::Nginx::log_core('||', "fastcgi record: "
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165 . " $h->{version}, $h->{type}, $h->{id}, "
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166 . "'$h->{content}'");
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167
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168 # skip everything unless stdin, then respond
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169 next if $h->{type} != 5;
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170
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171 $rcount++;
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172
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173 # respond
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174 fastcgi_respond($h, <<EOF);
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175 Location: http://localhost:8080/redirect
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176 Content-Type: text/html
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177
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178 SEE-THIS
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179 request: $rcount
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180 connection: $ccount
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181 EOF
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182 }
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183
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184 close $client;
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185 }
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186 }
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187
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188 ###############################################################################