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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 $content_length variable is used when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses the value calculated based on the actual request body buffers, and therefore works correctly).
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 27 Apr 2024 18:55:50 +0300
parents f3ba4c74de31
children
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1 #!/usr/bin/perl
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2
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3 # (C) Sergey Kandaurov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for stream variables.
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7
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8 ###############################################################################
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9
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10 use warnings;
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11 use strict;
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12
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13 use Test::More;
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14
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15 use Sys::Hostname;
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16
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17 BEGIN { use FindBin; chdir($FindBin::Bin); }
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18
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19 use lib 'lib';
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20 use Test::Nginx;
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21 use Test::Nginx::Stream qw/ stream dgram /;
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22
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23 ###############################################################################
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24
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25 select STDERR; $| = 1;
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26 select STDOUT; $| = 1;
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27
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28 my $t = Test::Nginx->new()->has(qw/stream stream_return udp/);
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29
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30 $t->write_file_expand('nginx.conf', <<'EOF');
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31
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32 %%TEST_GLOBALS%%
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33
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34 daemon off;
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35
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36 events {
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37 }
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38
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39 stream {
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40 %%TEST_GLOBALS_STREAM%%
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41
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42 server {
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43 listen 127.0.0.1:8080;
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44 return $connection:$nginx_version:$hostname:$pid:$bytes_sent;
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45 }
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46
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47 server {
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48 listen 127.0.0.1:8081;
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49 listen [::1]:%%PORT_8081%%;
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50 return $remote_addr:$remote_port:$server_addr:$server_port;
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51 }
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52
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53 server {
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54 listen 127.0.0.1:8082;
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55 proxy_pass [::1]:%%PORT_8081%%;
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56 }
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57
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58 server {
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59 listen 127.0.0.1:8083;
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60 listen [::1]:%%PORT_8083%%;
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61 return $binary_remote_addr;
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62 }
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63
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64 server {
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65 listen 127.0.0.1:8084;
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66 proxy_pass [::1]:%%PORT_8083%%;
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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;
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71 return $msec!$time_local!$time_iso8601;
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72 }
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74 server {
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75 listen 127.0.0.1:8086;
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76 listen 127.0.0.1:%%PORT_8987_UDP%% udp;
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77 return $protocol;
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78 }
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79 }
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80
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81 EOF
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82
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83 $t->try_run('no inet6 support')->plan(8);
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84
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85 ###############################################################################
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86
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87 my $hostname = lc hostname();
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88 like(stream('127.0.0.1:' . port(8080))->read(),
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89 qr/^\d+:[\d.]+:$hostname:\d+:0$/, 'vars');
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90
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91 my $dport = port(8081);
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92 my $s = stream("127.0.0.1:$dport");
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93 my $lport = $s->sockport();
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94 is($s->read(), "127.0.0.1:$lport:127.0.0.1:$dport", 'addr');
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95
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96 my $data = stream('127.0.0.1:' . port(8082))->read();
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97 like($data, qr/^::1:\d+:::1:\d+$/, 'addr ipv6');
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98
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99 $data = stream('127.0.0.1:' . port(8083))->read();
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100 is(unpack("H*", $data), '7f000001', 'binary addr');
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101
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102 $data = stream('127.0.0.1:' . port(8084))->read();
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103 is(unpack("H*", $data), '0' x 31 . '1', 'binary addr ipv6');
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104
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105 $data = stream('127.0.0.1:' . port(8085))->read();
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106 like($data, qr#^\d+.\d+![-+\w/: ]+![-+\dT:]+$#, 'time');
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107
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108 is(stream('127.0.0.1:' . port(8086))->read(), 'TCP', 'protocol TCP');
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109 is(dgram('127.0.0.1:' . port(8987))->io('.'), 'UDP', 'protocol UDP');
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110
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111 ###############################################################################