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annotate fastcgi_split.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 $content_length variable is used when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses the value calculated based on the actual request body buffers, and therefore works correctly).
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 27 Apr 2024 18:55:50 +0300
parents 882267679006
children
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74a015aad352 Tests: split headers and fastcgi_next_upstream test.
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1 #!/usr/bin/perl
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2
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3 # (C) Maxim Dounin
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4
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5 # Test for fastcgi backend.
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6 # Incorrect split headers handling after switching to next server,
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7 # as reported by Lucas Molas.
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8
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9 ###############################################################################
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10
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11 use warnings;
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12 use strict;
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13
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14 use Test::More;
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15 use Socket qw/ CR LF CRLF /;
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16
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17 BEGIN { use FindBin; chdir($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
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22 ###############################################################################
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23
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24 select STDERR; $| = 1;
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25 select STDOUT; $| = 1;
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26
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27 eval { require FCGI; };
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28 plan(skip_all => 'FCGI not installed') if $@;
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29 plan(skip_all => 'win32') if $^O eq 'MSWin32';
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30
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31 my $t = Test::Nginx->new()->has(qw/http fastcgi/)->plan(1)
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32 ->write_file_expand('nginx.conf', <<'EOF');
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33
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34 %%TEST_GLOBALS%%
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35
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36 daemon off;
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37
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38 events {
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39 }
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40
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41 http {
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42 %%TEST_GLOBALS_HTTP%%
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43
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44 upstream u {
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45 server 127.0.0.1:8081;
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46 server 127.0.0.1:8082;
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47 }
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48
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49 server {
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50 listen 127.0.0.1:8080;
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51 server_name localhost;
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52
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53 location / {
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54 fastcgi_pass u;
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55 fastcgi_param REQUEST_URI $request_uri;
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56 fastcgi_next_upstream invalid_header;
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57 }
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58 }
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59 }
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60
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61 EOF
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62
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63 $t->run_daemon(\&fastcgi_daemon, port(8081));
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64 $t->run_daemon(\&fastcgi_daemon, port(8082));
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65
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66 $t->run();
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67
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68 $t->waitforsocket('127.0.0.1:' . port(8081));
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69 $t->waitforsocket('127.0.0.1:' . port(8082));
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71 ###############################################################################
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72
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73 like(http_get('/'), qr/^Good: header/ms, 'fastcgi next upstream');
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74
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75 ###############################################################################
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76
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77 sub fastcgi_daemon {
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78 my ($port) = @_;
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79 my $socket = FCGI::OpenSocket("127.0.0.1:$port", 5);
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80 my $request = FCGI::Request(\*STDIN, \*STDOUT, \*STDERR, \%ENV,
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81 $socket);
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82
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83 my $count;
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84 while( $request->Accept() >= 0 ) {
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85 $count++;
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86
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87 if ($port == port(8081)) {
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88 print 'BAD';
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89 }
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90 if ($port == port(8082)) {
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91 print 'Good: header' . CRLF . CRLF;
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92 }
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93 }
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94
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95 FCGI::CloseSocket($socket);
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96 }
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97
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98 ###############################################################################