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annotate proxy_next_upstream_tries.t @ 1961:fe6f22da53ec default tip

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Tests: tests for usage of discarded body. The client_max_body_size limit should be ignored when the request body is already discarded. In HTTP/1.x, this is done by checking the r->discard_body flag when the body is being discarded, and because r->headers_in.content_length_n is 0 when it's already discarded. This, however, does not happen with HTTP/2 and HTTP/3, and therefore "error_page 413" does not work without relaxing the limit. Further, with proxy_pass, r->headers_in.content_length_n is used to determine length of the request body, and therefore is not correct if discarding of the request body isn't yet complete. While discarding the request body, r->headers_in.content_length_n contains the rest of the body to discard (or, in case of chunked request body, the rest of the current chunk to discard). Similarly, the $content_length variable uses r->headers_in.content_length if available, and also incorrect. The $content_length variable is used when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses the value calculated based on the actual request body buffers, and therefore works correctly).
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 27 Apr 2024 18:55:50 +0300
parents e4974af3fb12
children
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1 #!/usr/bin/perl
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2
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3 # (C) Sergey Kandaurov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for http proxy module, proxy_next_upstream_tries
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7 # and proxy_next_upstream_timeout directives.
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8
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9 ###############################################################################
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10
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11 use warnings;
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12 use strict;
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13
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14 use Test::More;
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15
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16 BEGIN { use FindBin; chdir($FindBin::Bin); }
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17
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18 use lib 'lib';
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19 use Test::Nginx;
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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 my $t = Test::Nginx->new()->has(qw/http proxy rewrite/)->plan(8);
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27
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28 $t->write_file_expand('nginx.conf', <<'EOF');
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29
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30 %%TEST_GLOBALS%%
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31
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32 daemon off;
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33
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34 events {
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35 }
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36
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37 http {
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38 %%TEST_GLOBALS_HTTP%%
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39
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40 upstream u {
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41 server 127.0.0.1:8081;
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42 server 127.0.0.1:8081;
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43 server 127.0.0.1:8081;
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44 }
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45
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46 upstream u2 {
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47 server 127.0.0.1:8081;
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48 server 127.0.0.1:8081 backup;
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49 server 127.0.0.1:8081 backup;
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50 }
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51
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52 server {
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53 listen 127.0.0.1:8080;
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54 server_name localhost;
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55
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56 proxy_next_upstream http_404;
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57 proxy_intercept_errors on;
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58 error_page 404 /404;
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59
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60 location /tries {
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61 proxy_pass http://u;
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62 proxy_next_upstream_tries 2;
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63 }
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64
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65 location /tries/backup {
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66 proxy_pass http://u2;
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67 proxy_next_upstream_tries 2;
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68 }
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69
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70 location /tries/resolver {
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71 resolver 127.0.0.1:%%PORT_8982_UDP%%;
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72
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73 proxy_pass http://$host:%%PORT_8081%%;
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74 proxy_next_upstream_tries 2;
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75 }
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76
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77 location /tries/zero {
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78 proxy_pass http://u;
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79 proxy_next_upstream_tries 0;
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80 }
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81
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82 location /timeout {
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83 proxy_pass http://u/w2;
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84 proxy_next_upstream_timeout 3800ms;
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85 }
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86
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87 location /timeout/backup {
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88 proxy_pass http://u2/w2;
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89 proxy_next_upstream_timeout 3800ms;
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90 }
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91
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92 location /timeout/resolver {
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93 resolver 127.0.0.1:%%PORT_8982_UDP%%;
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94
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95 proxy_pass http://$host:%%PORT_8081%%/w2;
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96 proxy_next_upstream_timeout 3800ms;
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97 }
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98
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99 location /timeout/zero {
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100 proxy_pass http://u/w;
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101 proxy_next_upstream_timeout 0;
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102 }
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103
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104 location /404 {
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105 return 200 x${upstream_status}x;
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106 }
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107 }
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108 }
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109
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110 EOF
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111
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112 $t->run_daemon(\&http_daemon, port(8081));
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113 $t->run_daemon(\&dns_daemon, port(8982), $t);
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114 $t->run();
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115
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116 $t->waitforsocket('127.0.0.1:' . port(8081));
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117 $t->waitforfile($t->testdir . '/' . port(8982));
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118
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119 ###############################################################################
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120
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121 like(http_get('/tries'), qr/x404, 404x/, 'tries');
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122 like(http_get('/tries/backup'), qr/x404, 404x/, 'tries backup');
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123 like(http_get('/tries/resolver'), qr/x404, 404x/, 'tries resolved');
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124 like(http_get('/tries/zero'), qr/x404, 404, 404x/, 'tries zero');
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125
492
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126 # two tries fit into 1.9s
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127
608
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128 SKIP: {
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129 skip 'long tests', 4 unless $ENV{TEST_NGINX_UNSAFE};
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130
462
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131 like(http_get('/timeout'), qr/x404, 404x/, 'timeout');
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132 like(http_get('/timeout/backup'), qr/x404, 404x/, 'timeout backup');
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133 like(http_get('/timeout/resolver'), qr/x404, 404x/, 'timeout resolved');
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134 like(http_get('/timeout/zero'), qr/x404, 404, 404x/, 'timeout zero');
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135
608
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136 }
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137
462
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138 ###############################################################################
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139
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140 sub http_daemon {
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141 my ($port) = @_;
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142
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143 my $server = IO::Socket::INET->new(
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144 Proto => 'tcp',
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145 LocalHost => '127.0.0.1',
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146 LocalPort => $port,
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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 while (my $client = $server->accept()) {
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155 $client->autoflush(1);
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156
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157 my $headers = '';
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158 my $uri = '';
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159
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160 while (<$client>) {
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161 $headers .= $_;
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162 last if (/^\x0d?\x0a?$/);
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163 }
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164
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165 next if $headers eq '';
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166
494
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167 $uri = $1 if $headers =~ /^\S+\s+([^ ]+)\s+HTTP/i;
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168
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169 if ($uri eq '/w') {
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170 Test::Nginx::log_core('||', "$port: sleep(1)");
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171 select undef, undef, undef, 1;
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172 }
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173
608
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174 if ($uri eq '/w2') {
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175 Test::Nginx::log_core('||', "$port: sleep(2)");
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176 select undef, undef, undef, 2;
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177 }
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178
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179 Test::Nginx::log_core('||', "$port: response, 404");
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180 print $client <<EOF;
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181 HTTP/1.1 404 Not Found
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182 Connection: close
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183
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184 EOF
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185
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186 } continue {
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187 close $client;
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188 }
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189 }
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190
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191 sub reply_handler {
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192 my ($recv_data) = @_;
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193
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194 my (@name, @rdata);
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195
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196 use constant NOERROR => 0;
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197 use constant A => 1;
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198 use constant IN => 1;
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199
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200 # default values
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201
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202 my ($hdr, $rcode, $ttl) = (0x8180, NOERROR, 3600);
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203
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204 # decode name
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205
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206 my ($len, $offset) = (undef, 12);
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207 while (1) {
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208 $len = unpack("\@$offset C", $recv_data);
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209 last if $len == 0;
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210 $offset++;
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211 push @name, unpack("\@$offset A$len", $recv_data);
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212 $offset += $len;
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213 }
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214
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215 $offset -= 1;
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216 my ($id, $type, $class) = unpack("n x$offset n2", $recv_data);
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217
485
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218 @rdata = map { rd_addr($ttl, '127.0.0.1') } (1 .. 3) if $type == A;
479
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219
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220 $len = @name;
775
a6764c2a9f12 Tests: fixed DNS label coding in resolver tests.
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221 pack("n6 (C/a*)$len x n2", $id, $hdr | $rcode, 1, scalar @rdata,
479
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222 0, 0, @name, $type, $class) . join('', @rdata);
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223 }
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224
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225 sub rd_addr {
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226 my ($ttl, $addr) = @_;
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227
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228 my $code = 'split(/\./, $addr)';
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229
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230 return pack 'n3N', 0xc00c, A, IN, $ttl if $addr eq '';
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231
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232 pack 'n3N nC4', 0xc00c, A, IN, $ttl, eval "scalar $code", eval($code);
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233 }
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234
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235 sub dns_daemon {
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236 my ($port, $t) = @_;
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237
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238 my ($data, $recv_data);
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239 my $socket = IO::Socket::INET->new(
937
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240 LocalAddr => '127.0.0.1',
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241 LocalPort => $port,
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242 Proto => 'udp',
479
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243 )
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244 or die "Can't create listening socket: $!\n";
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245
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246 # signal we are ready
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247
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parents: 462
diff changeset
248 open my $fh, '>', $t->testdir() . '/' . $port;
b8f10ffa02cd Tests: proxy_next_upstream_tries tests with resolved upstream.
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parents: 462
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249 close $fh;
b8f10ffa02cd Tests: proxy_next_upstream_tries tests with resolved upstream.
Sergey Kandaurov <pluknet@nginx.com>
parents: 462
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250
b8f10ffa02cd Tests: proxy_next_upstream_tries tests with resolved upstream.
Sergey Kandaurov <pluknet@nginx.com>
parents: 462
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251 while (1) {
b8f10ffa02cd Tests: proxy_next_upstream_tries tests with resolved upstream.
Sergey Kandaurov <pluknet@nginx.com>
parents: 462
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252 $socket->recv($recv_data, 65536);
b8f10ffa02cd Tests: proxy_next_upstream_tries tests with resolved upstream.
Sergey Kandaurov <pluknet@nginx.com>
parents: 462
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253 $data = reply_handler($recv_data);
b8f10ffa02cd Tests: proxy_next_upstream_tries tests with resolved upstream.
Sergey Kandaurov <pluknet@nginx.com>
parents: 462
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254 $socket->send($data);
b8f10ffa02cd Tests: proxy_next_upstream_tries tests with resolved upstream.
Sergey Kandaurov <pluknet@nginx.com>
parents: 462
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255 }
b8f10ffa02cd Tests: proxy_next_upstream_tries tests with resolved upstream.
Sergey Kandaurov <pluknet@nginx.com>
parents: 462
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256 }
b8f10ffa02cd Tests: proxy_next_upstream_tries tests with resolved upstream.
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parents: 462
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257
462
cb0662e12d6e Tests: proxy_next_upstream_{tries,timeout} tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
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258 ###############################################################################