Mercurial > hg > nginx-tests
view proxy_variables.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 $content_length variable is used
when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses
the value calculated based on the actual request body buffers, and therefore
works correctly).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Sat, 27 Apr 2024 18:55:50 +0300 |
parents | 144c6ce732e4 |
children |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for http proxy module with upstream variables. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/http proxy/)->plan(4) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% log_format u $uri:$upstream_response_length:$upstream_bytes_received: $upstream_bytes_sent:$upstream_http_x_len; server { listen 127.0.0.1:8080; server_name localhost; location / { proxy_pass http://127.0.0.1:8081; access_log %%TESTDIR%%/test.log u; } } } EOF $t->run_daemon(\&http_daemon, port(8081)); $t->run(); $t->waitforsocket('127.0.0.1:' . port(8081)); ############################################################################### my $r; my ($l1) = ($r = http_get('/')) =~ /X-Len: (\d+)/; like($r, qr/SEE-THIS/, 'proxy request'); my ($l2) = ($r = http_get('/multi')) =~ /X-Len: (\d+)/; like($r, qr/AND-THIS/, 'proxy request with multiple packets'); $t->stop(); my $f = $t->read_file('test.log'); Test::Nginx::log_core('||', $f); like($f, qr!^/:23:68:$l1:$l1!m, 'log - response length'); like($f, qr!^/multi:32:77:$l2:$l2!m, 'log - response length - multi packets'); ############################################################################### sub http_daemon { my ($port) = @_; my $server = IO::Socket::INET->new( Proto => 'tcp', LocalHost => '127.0.0.1', LocalPort => $port, Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; local $SIG{PIPE} = 'IGNORE'; while (my $client = $server->accept()) { $client->autoflush(1); my $headers = ''; my $uri = ''; while (<$client>) { $headers .= $_; last if (/^\x0d?\x0a?$/); } $uri = $1 if $headers =~ /^\S+\s+([^ ]+)\s+HTTP/i; my $len = length($headers); if ($uri eq '/') { print $client <<"EOF"; HTTP/1.1 200 OK Connection: close X-Len: $len EOF print $client "TEST-OK-IF-YOU-SEE-THIS" unless $headers =~ /^HEAD/i; } elsif ($uri eq '/multi') { print $client <<"EOF"; HTTP/1.1 200 OK Connection: close X-Len: $len TEST-OK-IF-YOU-SEE-THIS EOF select undef, undef, undef, 0.1; print $client 'AND-THIS'; } close $client; } } ###############################################################################