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annotate subrequest_output_buffer_size.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 $content_length variable is used when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses the value calculated based on the actual request body buffers, and therefore works correctly).
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 27 Apr 2024 18:55:50 +0300
parents 97c8280de681
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/perl
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2
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3 # (C) Sergey Kandaurov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for subrequest_output_buffer_size directive.
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7
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8 ###############################################################################
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9
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10 use warnings;
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11 use strict;
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12
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13 use Test::More;
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14
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15 BEGIN { use FindBin; chdir($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
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20 ###############################################################################
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21
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22 select STDERR; $| = 1;
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23 select STDOUT; $| = 1;
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24
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25 my $t = Test::Nginx->new()->has(qw/http proxy ssi/)->plan(4)
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26 ->write_file_expand('nginx.conf', <<'EOF');
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27
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28 %%TEST_GLOBALS%%
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29
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30 daemon off;
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31
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32 events {
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33 }
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34
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35 http {
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36 %%TEST_GLOBALS_HTTP%%
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37
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38 server {
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39 listen 127.0.0.1:8080;
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40 server_name localhost;
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41
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42 location / {
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43 proxy_pass http://127.0.0.1:8081;
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44 subrequest_output_buffer_size 42;
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45 }
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46
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47 location /longok {
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48 proxy_pass http://127.0.0.1:8081/long;
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49 }
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50
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51 location /ssi {
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52 ssi on;
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53 }
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54 }
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55
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56 server {
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57 listen 127.0.0.1:8081;
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58 server_name localhost;
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59
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60 location / { }
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61 }
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62 }
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63
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64 EOF
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65
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66 $t->write_file('ssi.html',
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67 '<!--#include virtual="/$arg_c" set="x" -->' .
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68 'set: <!--#echo var="x" -->');
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69
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70 $t->write_file('length', 'TEST-OK-IF-YOU-SEE-THIS');
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71 $t->write_file('long', 'x' x 400);
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72 $t->write_file('empty', '');
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73
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74 $t->run();
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75
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76 ###############################################################################
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77
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78 my ($r, $n);
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79
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80 like(http_get('/ssi.html?c=length'), qr/SEE-THIS/, 'request');
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81 like(http_get('/ssi.html?c=empty'), qr/set: $/, 'empty');
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82 unlike(http_get('/ssi.html?c=long'), qr/200 OK/, 'long');
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83 like(http_get('/ssi.html?c=longok'), qr/x{400}/, 'long ok');
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84
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85 ###############################################################################