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868
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1 #!/usr/bin/perl
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2
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3 # (C) Andrey Zelenkov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for stream limit_conn module with datagrams.
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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::Stream qw/ dgram /;
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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/stream stream_limit_conn shmem/)
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27 ->write_file_expand('nginx.conf', <<'EOF');
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28
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29 %%TEST_GLOBALS%%
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30
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31 daemon off;
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32
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33 events {
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34 }
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35
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36 stream {
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37 limit_conn_zone $binary_remote_addr zone=zone:1m;
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38 limit_conn_zone $binary_remote_addr zone=zone2:1m;
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39
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40 proxy_responses 1;
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41 proxy_timeout 1s;
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42
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43 server {
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44 listen 127.0.0.1:8081 udp;
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45 proxy_pass 127.0.0.1:8080;
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46
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47 limit_conn zone 1;
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48 proxy_responses 2;
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49 }
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50
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51 server {
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52 listen 127.0.0.1:8082 udp;
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53 proxy_pass 127.0.0.1:8080;
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54 limit_conn zone2 1;
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55 }
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56
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57 server {
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58 listen 127.0.0.1:8083 udp;
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59 proxy_pass 127.0.0.1:8080;
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60 limit_conn zone 5;
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61 }
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62
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63 server {
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64 listen 127.0.0.1:8084 udp;
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65 proxy_pass 127.0.0.1:8081;
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66 limit_conn zone2 1;
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67 }
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68
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69 server {
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70 listen 127.0.0.1:8085 udp;
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71 proxy_pass 127.0.0.1:8081;
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72 limit_conn zone 1;
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73 }
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74 }
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75
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76 EOF
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77
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78 $t->try_run('no stream udp')->plan(8);
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79 $t->run_daemon(\&udp_daemon, $t);
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80 $t->waitforfile($t->testdir . '/8080');
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81
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82 ###############################################################################
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83
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84 my $str = '.';
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85
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86 # same and other zones
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87
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88 my $s = dgram('127.0.0.1:8081');
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89
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90 is($s->io('1'), '1', 'passed');
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91
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92 is(dgram('127.0.0.1:8081')->io('1'), '', 'rejected same zone');
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93 is(dgram('127.0.0.1:8082')->io('1'), '1', 'passed different zone');
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94 is(dgram('127.0.0.1:8083')->io('1'), '1', 'passed same zone unlimited');
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95
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96 is($s->io('2', read => 2), '12', 'long connection');
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97
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98 is(dgram('127.0.0.1:8081')->io('2', read => 2), '12', 'passed 2');
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99
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100 # zones proxy chain
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101
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102 is(dgram('127.0.0.1:8084')->io('1'), '1', 'passed proxy');
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103 is(dgram('127.0.0.1:8085')->io('1'), '', 'rejected proxy');
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104
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105 ###############################################################################
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106
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107 sub udp_daemon {
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108 my $t = shift;
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109
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110 my $server = IO::Socket::INET->new(
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111 Proto => 'udp',
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112 LocalAddr => '127.0.0.1:8080',
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113 Reuse => 1,
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114 )
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115 or die "Can't create listening socket: $!\n";
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116
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117 # signal we are ready
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118
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119 open my $fh, '>', $t->testdir() . '/8080';
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120 close $fh;
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121
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122 while (1) {
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123 $server->recv(my $buffer, 65536);
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124 $server->send($_) for (1 .. $buffer);
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125 }
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126 }
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127
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128 ###############################################################################
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