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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 $content_length variable is used when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses the value calculated based on the actual request body buffers, and therefore works correctly).
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 27 Apr 2024 18:55:50 +0300
parents 236d038dc04a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/perl
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2
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3 # (C) Sergey Kandaurov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for HTTP/2 protocol with proxy to ssl backend.
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7
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8 ###############################################################################
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9
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10 use warnings;
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11 use strict;
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12
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13 use Test::More;
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14
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15 BEGIN { use FindBin; chdir($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::HTTP2;
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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 http_ssl http_v2 proxy/)
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27 ->has_daemon('openssl')->plan(1);
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28
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29 $t->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 http2;
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43 listen 127.0.0.1:8081 ssl;
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44 server_name localhost;
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45
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46 ssl_certificate_key localhost.key;
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47 ssl_certificate localhost.crt;
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48
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49 location / { }
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50 location /proxy_ssl/ {
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51 proxy_pass https://127.0.0.1:8081/;
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52 }
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53 }
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54 }
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55
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56 EOF
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57
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58 $t->write_file('openssl.conf', <<EOF);
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59 [ req ]
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60 default_bits = 2048
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61 encrypt_key = no
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62 distinguished_name = req_distinguished_name
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63 [ req_distinguished_name ]
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64 EOF
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65
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66 my $d = $t->testdir();
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67
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68 foreach my $name ('localhost') {
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69 system('openssl req -x509 -new '
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70 . "-config $d/openssl.conf -subj /CN=$name/ "
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71 . "-out $d/$name.crt -keyout $d/$name.key "
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72 . ">>$d/openssl.out 2>&1") == 0
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73 or die "Can't create certificate for $name: $!\n";
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74 }
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75
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76 $t->write_file('index.html', '');
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77
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78 # suppress deprecation warning
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79
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80 open OLDERR, ">&", \*STDERR; close STDERR;
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81 $t->run();
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82 open STDERR, ">&", \*OLDERR;
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83
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84 ###############################################################################
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85
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86 # request body with an empty DATA frame proxied to ssl backend
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87 # "zero size buf in output" alerts seen
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88
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89 my $s = Test::Nginx::HTTP2->new();
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90 my $sid = $s->new_stream({ path => '/proxy_ssl/', body_more => 1 });
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91 $s->h2_body('');
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92 my $frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
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93
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94 my ($frame) = grep { $_->{type} eq "HEADERS" } @$frames;
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95 is($frame->{headers}->{':status'}, 200, 'empty request body');
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96
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97 ###############################################################################