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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 $content_length variable is used when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses the value calculated based on the actual request body buffers, and therefore works correctly).
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 27 Apr 2024 18:55:50 +0300
parents 236d038dc04a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/perl
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2
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3 # (C) Sergey Kandaurov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for HTTP/2 protocol with proxy_protocol.
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7
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8 ###############################################################################
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9
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10 use warnings;
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11 use strict;
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12
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13 use Test::More;
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14
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15 use Socket qw/ CRLF /;
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16
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17 BEGIN { use FindBin; chdir($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::HTTP2;
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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/http http_v2 realip/)->plan(3)
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29 ->write_file_expand('nginx.conf', <<'EOF');
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30
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31 %%TEST_GLOBALS%%
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32
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33 daemon off;
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34
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35 events {
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36 }
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37
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38 http {
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39 %%TEST_GLOBALS_HTTP%%
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40
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41 server {
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42 listen 127.0.0.1:8080 proxy_protocol http2;
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43 server_name localhost;
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44
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45 location /pp {
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46 set_real_ip_from 127.0.0.1/32;
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47 real_ip_header proxy_protocol;
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48 alias %%TESTDIR%%/t.html;
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49 add_header X-PP $remote_addr;
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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->write_file('t.html', 'SEE-THIS');
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57
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58 # suppress deprecation warning
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59
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60 open OLDERR, ">&", \*STDERR; close STDERR;
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61 $t->run();
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62 open STDERR, ">&", \*OLDERR;
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63
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64 ###############################################################################
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65
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66 my $proxy = 'PROXY TCP4 192.0.2.1 192.0.2.2 1234 5678' . CRLF;
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67 my $s = Test::Nginx::HTTP2->new(port(8080), proxy => $proxy);
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68 my $sid = $s->new_stream({ path => '/pp' });
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69 my $frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
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70
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71 my ($frame) = grep { $_->{type} eq "HEADERS" } @$frames;
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72 ok($frame, 'PROXY HEADERS frame');
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73 is($frame->{headers}->{'x-pp'}, '192.0.2.1', 'PROXY remote addr');
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74
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75 # invalid PROXY protocol string
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76
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77 TODO: {
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78 local $TODO = 'not yet' unless $t->has_version('1.25.1');
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80 $proxy = 'BOGUS TCP4 192.0.2.1 192.0.2.2 1234 5678' . CRLF;
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81 ok(!http($proxy), 'PROXY invalid protocol');
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82
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83 }
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85 ###############################################################################