view stream_upstream_zone.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 f3ba4c74de31
children
line wrap: on
line source

#!/usr/bin/perl

# (C) Sergey Kandaurov
# (C) Nginx, Inc.

# Stream tests for upstream zone.

###############################################################################

use warnings;
use strict;

use Test::More;

BEGIN { use FindBin; chdir($FindBin::Bin); }

use lib 'lib';
use Test::Nginx;
use Test::Nginx::Stream qw/ stream /;

###############################################################################

select STDERR; $| = 1;
select STDOUT; $| = 1;

my $t = Test::Nginx->new()->has(qw/stream stream_return stream_upstream_zone/)
	->plan(2)->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

stream {
    %%TEST_GLOBALS_STREAM%%

    log_format test $upstream_addr;

    upstream u {
        zone u 1m;
        server 127.0.0.1:8081;
    }

    upstream u2 {
        zone u;
        server 127.0.0.1:8081 down;
        server 127.0.0.1:8081 backup down;
    }

    server {
        listen      127.0.0.1:8081;
        return      OK;
    }

    server {
        listen      127.0.0.1:8091;
        proxy_pass  u;

        access_log %%TESTDIR%%/access1.log test;
    }

    server {
        listen      127.0.0.1:8092;
        proxy_pass  u2;

        access_log %%TESTDIR%%/access2.log test;
    }
}

EOF

$t->write_file('index.html', '');
$t->run();

###############################################################################

my $p = port(8081);

stream('127.0.0.1:' . port(8091))->read();
stream("127.0.0.1:" . port(8092))->read();

$t->stop();

is($t->read_file('access1.log'), "127.0.0.1:$p\n", 'upstream name');
is($t->read_file('access2.log'), "u2\n", 'no live upstreams');

###############################################################################