Mercurial > hg > nginx-tests
view fastcgi_body2.t @ 1961:fe6f22da53ec default tip
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 $content_length variable is used
when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses
the value calculated based on the actual request body buffers, and therefore
works correctly).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Sat, 27 Apr 2024 18:55:50 +0300 |
parents | 42d9fd20eeb6 |
children |
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#!/usr/bin/perl # (C) Maxim Dounin # (C) Sergey Kandaurov # (C) Nginx, Inc. # Test for fastcgi backend with large request body, # with fastcgi_next_upstream directive. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; eval { require FCGI; }; plan(skip_all => 'FCGI not installed') if $@; plan(skip_all => 'win32') if $^O eq 'MSWin32'; my $t = Test::Nginx->new()->has(qw/http fastcgi/)->plan(2) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% upstream u { server 127.0.0.1:8081; server 127.0.0.1:8082 backup; } upstream u2 { server 127.0.0.1:8081; server 127.0.0.1:8082 backup; } server { listen 127.0.0.1:8080; server_name localhost; location / { fastcgi_pass u; fastcgi_param REQUEST_URI $request_uri; fastcgi_param CONTENT_LENGTH $content_length; # fastcgi_next_upstream error timeout; fastcgi_read_timeout 1s; } location /in_memory { fastcgi_pass u2; fastcgi_param REQUEST_URI $request_uri; fastcgi_param CONTENT_LENGTH $content_length; # fastcgi_next_upstream error timeout; fastcgi_read_timeout 1s; client_body_buffer_size 128k; } } } EOF $t->run_daemon(\&fastcgi_daemon, port(8081)); $t->run_daemon(\&fastcgi_daemon, port(8082)); $t->run(); $t->waitforsocket('127.0.0.1:' . port(8081)); $t->waitforsocket('127.0.0.1:' . port(8082)); ############################################################################### like(http_get_length('/', 'x' x 102400), qr/X-Length: 102400/, 'body length - in file'); like(http_get_length('/in_memory', 'x' x 102400), qr/X-Length: 102400/, 'body length - in memory'); ############################################################################### sub http_get_length { my ($url, $body) = @_; my $length = length $body; return http(<<EOF); GET $url HTTP/1.0 Host: localhost Content-Length: $length $body EOF } ############################################################################### sub fastcgi_daemon { my ($port) = @_; my $socket = FCGI::OpenSocket("127.0.0.1:$port", 5); my $request = FCGI::Request(\*STDIN, \*STDOUT, \*STDERR, \%ENV, $socket); while( $request->Accept() >= 0 ) { read(STDIN, my $body, $ENV{'CONTENT_LENGTH'} || 0); my $len = length $body; sleep 3 if $port == port(8081); print <<EOF; Location: http://localhost/redirect Content-Type: text/html X-Length: $len EOF } FCGI::CloseSocket($socket); } ###############################################################################