Mercurial > hg > nginx-tests
annotate upstream_least_conn.t @ 1571:1b4ceab9cb1c
Tests: fixed ssl_certificate.t with LibreSSL client.
Net::SSLeay::connect() that manages TLS handshake could return unexpected
error when receiving server alert, as seen in server certificate tests if
it could not been selected. Typically, it returns the expected error -1,
but with certain libssl implementations it can be 0, as explained below.
The error is propagated from libssl's SSL_connect(), which is usually -1.
In modern OpenSSL versions, it is the default error code used in the state
machine returned when something went wrong with parsing TLS message header.
In versions up to OpenSSL 1.0.2, with SSLv23_method() used by default, -1
is the only error code in the ssl_connect() method implementation which is
used as well if receiving alert while parsing ServerHello. BoringSSL also
seems to return -1. But it is not so with LibreSSL that returns zero.
Previously, tests failed with client built with LibreSSL with SSLv3 removed.
Here, the error is propagated directly from ssl_read_bytes() method, which
is always implemented as ssl3_read_bytes() in all TLS methods. It could be
also seen with OpenSSL up to 1.0.2 with non-default methods explicitly set.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Fri, 29 May 2020 23:10:20 +0300 |
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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 # Tests for upstream least_conn balancer module. |
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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 |
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14 BEGIN { use FindBin; chdir($FindBin::Bin); } |
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15 |
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16 use lib 'lib'; |
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17 use Test::Nginx qw/ :DEFAULT http_end /; |
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18 |
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19 ############################################################################### |
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20 |
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21 select STDERR; $| = 1; |
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22 select STDOUT; $| = 1; |
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23 |
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24 my $t = Test::Nginx->new()->has(qw/http proxy upstream_least_conn/)->plan(2); |
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25 |
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26 $t->write_file_expand('nginx.conf', <<'EOF'); |
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27 |
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28 %%TEST_GLOBALS%% |
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29 |
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30 daemon off; |
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31 |
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32 events { |
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33 } |
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34 |
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35 http { |
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36 %%TEST_GLOBALS_HTTP%% |
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37 |
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38 upstream u { |
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39 least_conn; |
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40 server 127.0.0.1:8081; |
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41 server 127.0.0.1:8082; |
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42 } |
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43 |
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44 server { |
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45 listen 127.0.0.1:8080; |
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46 server_name localhost; |
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47 |
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48 location / { |
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49 proxy_pass http://u; |
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50 } |
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51 } |
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52 } |
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53 |
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54 EOF |
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55 |
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56 $t->run_daemon(\&http_daemon, port(8081)); |
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57 $t->run_daemon(\&http_daemon, port(8082)); |
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58 $t->run(); |
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59 |
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60 $t->waitforsocket('127.0.0.1:' . port(8081)); |
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61 $t->waitforsocket('127.0.0.1:' . port(8082)); |
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62 |
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63 ############################################################################### |
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64 |
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65 my @ports = my ($port1, $port2) = (port(8081), port(8082)); |
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66 |
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67 is(many('/', 10), "$port1: 5, $port2: 5", 'balanced'); |
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68 |
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69 my @sockets; |
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70 push(@sockets, http_get('/w', start => 1)); |
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71 push(@sockets, http_get('/w', start => 1)); |
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72 |
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73 select undef, undef, undef, 0.2; |
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74 |
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75 is(many('/w', 10), "$port2: 10", 'least conn'); |
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76 |
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77 ############################################################################### |
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78 |
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79 sub many { |
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80 my ($uri, $count) = @_; |
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81 my %ports; |
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82 |
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83 for (1 .. $count) { |
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84 if (http_get($uri) =~ /X-Port: (\d+)/) { |
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85 $ports{$1} = 0 unless defined $ports{$1}; |
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86 $ports{$1}++; |
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87 } |
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88 } |
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89 |
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90 my @keys = map { my $p = $_; grep { $p == $_ } keys %ports } @ports; |
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91 return join ', ', map { $_ . ": " . $ports{$_} } @keys; |
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92 } |
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93 |
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94 ############################################################################### |
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95 |
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96 sub http_daemon { |
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97 my ($port) = @_; |
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98 |
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99 my $server = IO::Socket::INET->new( |
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100 Proto => 'tcp', |
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101 LocalHost => '127.0.0.1', |
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102 LocalPort => $port, |
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103 Listen => 5, |
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104 Reuse => 1 |
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105 ) |
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106 or die "Can't create listening socket: $!\n"; |
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107 |
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108 local $SIG{PIPE} = 'IGNORE'; |
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109 |
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110 while (my $client = $server->accept()) { |
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111 $client->autoflush(1); |
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112 |
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113 my $headers = ''; |
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114 my $uri = ''; |
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115 |
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116 while (<$client>) { |
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117 $headers .= $_; |
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118 last if (/^\x0d?\x0a?$/); |
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119 } |
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120 |
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121 $uri = $1 if $headers =~ /^\S+\s+([^ ]+)\s+HTTP/i; |
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122 |
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123 if ($uri eq '/w' && $port == port(8081)) { |
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124 Test::Nginx::log_core('||', "$port: sleep(2.5)"); |
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125 select undef, undef, undef, 2.5; |
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126 } |
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127 |
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128 Test::Nginx::log_core('||', "$port: response, 200"); |
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129 print $client <<EOF; |
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130 HTTP/1.1 200 OK |
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131 Connection: close |
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132 X-Port: $port |
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133 |
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134 OK |
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135 EOF |
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136 |
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137 close $client; |
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138 } |
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139 } |
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140 |
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141 ############################################################################### |