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annotate h2_proxy_request_buffering_redirect.t @ 1961:fe6f22da53ec default tip

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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 $content_length variable is used when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses the value calculated based on the actual request body buffers, and therefore works correctly).
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 27 Apr 2024 18:55:50 +0300
parents 236d038dc04a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/perl
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2
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3 # (C) Sergey Kandaurov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for HTTP/2 protocol with unbuffered request body.
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7
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8 ###############################################################################
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9
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10 use warnings;
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11 use strict;
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12
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13 use Test::More;
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14
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15 BEGIN { use FindBin; chdir($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_v2 proxy rewrite/)->plan(1);
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27
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28 $t->write_file_expand('nginx.conf', <<'EOF');
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29
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30 %%TEST_GLOBALS%%
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31
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32 daemon off;
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33
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34 events {
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35 }
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36
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37 http {
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38 %%TEST_GLOBALS_HTTP%%
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39
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40 server {
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41 listen 127.0.0.1:8080 http2;
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42 listen 127.0.0.1:8081;
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43 server_name localhost;
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44
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45 proxy_http_version 1.1;
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46
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47 location / {
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48 proxy_request_buffering off;
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49 proxy_pass http://127.0.0.1:8081/bad;
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50 proxy_intercept_errors on;
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51 error_page 502 = /pass;
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52 }
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53
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54 location /bad {
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55 return 502;
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56 }
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57
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58 location /pass {
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59 proxy_pass http://127.0.0.1:8081/good;
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60 }
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61
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62 location /good {
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63 limit_rate 100;
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64 return 200;
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65 }
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66 }
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67 }
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68
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69 EOF
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70
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71 # suppress deprecation warning
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72
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73 open OLDERR, ">&", \*STDERR; close STDERR;
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74 $t->run();
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75 open STDERR, ">&", \*OLDERR;
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76
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77 ###############################################################################
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78
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79 # unbuffered request body
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80
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81 my $s = Test::Nginx::HTTP2->new();
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82 my $sid = $s->new_stream({ body_more => 1 });
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83
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84 $s->h2_body('SEE-', { body_more => 1 });
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85 sleep 1;
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86 $s->h2_body('THIS');
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87
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88 my $frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
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89 my ($frame) = grep { $_->{type} eq "HEADERS" } @$frames;
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90 is($frame->{headers}->{':status'}, 200, 'discard body rest on redirect');
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91
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92 ###############################################################################