Mercurial > hg > nginx-tests
view memcached_fake_extra.t @ 1961:fe6f22da53ec
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 $content_length variable is used
when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses
the value calculated based on the actual request body buffers, and therefore
works correctly).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Sat, 27 Apr 2024 18:55:50 +0300 |
parents | 5ac6efbe5552 |
children |
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#!/usr/bin/perl # (C) Maxim Dounin # (C) Nginx, Inc. # Test for memcached backend returning extra data after trailer. ############################################################################### use warnings; use strict; use Test::More; use Socket qw/ CRLF /; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/http rewrite memcached/)->plan(1) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% server { listen 127.0.0.1:8080; server_name localhost; location / { set $memcached_key $uri; memcached_pass 127.0.0.1:8081; } } } EOF $t->run_daemon(\&memcached_fake_daemon); $t->run(); $t->waitforsocket('127.0.0.1:' . port(8081)) or die "Can't start fake memcached"; ############################################################################### like(http_get('/'), qr/SEE-THIS/, 'memcached data after trailer'); ############################################################################### sub memcached_fake_daemon { my $server = IO::Socket::INET->new( Proto => 'tcp', LocalAddr => '127.0.0.1:' . port(8081), Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; local $SIG{PIPE} = 'IGNORE'; while (my $client = $server->accept()) { $client->autoflush(1); while (<$client>) { last if (/\x0d\x0a$/); } print $client 'VALUE / 0 8' . CRLF; print $client 'SEE-THIS' . CRLF . 'END' . CRLF . "\0" . ("1" x 1024); select(undef, undef, undef, 0.2); print $client 'EXTRA' . CRLF; close $client; } } ###############################################################################