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annotate proxy_limit_rate.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 $content_length variable is used when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses the value calculated based on the actual request body buffers, and therefore works correctly).
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 27 Apr 2024 18:55:50 +0300
parents 06fbbf1706bd
children
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1 #!/usr/bin/perl
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2
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3 # (C) Sergey Kandaurov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for the proxy_limit_rate directive.
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7
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8 ###############################################################################
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9
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10 use warnings;
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11 use strict;
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12
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13 use Test::More;
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14
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15 BEGIN { use FindBin; chdir($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 upstream_keepalive/)->plan(4);
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26
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27 $t->write_file_expand('nginx.conf', <<'EOF');
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28
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29 %%TEST_GLOBALS%%
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30
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31 daemon off;
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32
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33 events {
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34 }
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35
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36 http {
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37 %%TEST_GLOBALS_HTTP%%
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38
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39 upstream u {
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40 server 127.0.0.1:8080;
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41 keepalive 1;
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42 }
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43
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44 server {
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45 listen 127.0.0.1:8080;
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46 server_name localhost;
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47
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48 location / {
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49 proxy_pass http://127.0.0.1:8080/data;
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50 proxy_buffer_size 4k;
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51 proxy_limit_rate 20000;
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52 add_header X-Msec $msec;
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53 }
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54
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55 location /keepalive {
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56 proxy_http_version 1.1;
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57 proxy_set_header Connection "";
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58 proxy_pass http://u/data;
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59 proxy_buffer_size 4k;
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60 proxy_limit_rate 20000;
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61 add_header X-Msec $msec;
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62 }
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63
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64 location /data {
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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 $t->write_file('data', 'X' x 40000);
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72 $t->run();
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73
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74 ###############################################################################
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75
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76 my $r = http_get('/');
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77
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78 my ($t1) = $r =~ /X-Msec: (\d+)/;
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79 my $diff = time() - $t1;
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81 # four chunks are split with three 1s delays
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82
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83 cmp_ok($diff, '>=', 1, 'proxy_limit_rate');
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84 like($r, qr/^(XXXXXXXXXX){4000}\x0d?\x0a?$/m, 'response body');
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85
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86 # in case keepalive connection was saved with the delayed flag,
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87 # the read timer used to be a delay timer in the next request
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88
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89 like(http_get('/keepalive'), qr/200 OK/, 'keepalive');
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90 like(http_get('/keepalive'), qr/200 OK/, 'keepalive 2');
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91
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92 ###############################################################################