view limit_req2.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 e91d80dd2527
children
line wrap: on
line source

#!/usr/bin/perl

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

# Tests for nginx limit_req module, multiple limits.

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

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 limit_req/)->plan(14);

$t->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    limit_req_zone  $arg_a  zone=slow:1m   rate=1r/m;
    limit_req_zone  $arg_b  zone=fast:1m   rate=1000r/s;

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        location / {
            limit_req    zone=fast;
            limit_req    zone=slow;
        }

        location /t2.html {
            limit_req    zone=fast  nodelay;
            limit_req    zone=slow  nodelay;

            alias %%TESTDIR%%/t1.html;
        }
    }
}

EOF

$t->write_file('t1.html', 'XtestX');
$t->run();

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

like(http_get('/t1.html?b=1'), qr/^HTTP\/1.. 200 /m, 'fast');
select undef, undef, undef, 0.1;
like(http_get('/t1.html?b=1'), qr/^HTTP\/1.. 200 /m, 'fast - passed');

like(http_get('/t1.html?a=1'), qr/^HTTP\/1.. 200 /m, 'slow');
select undef, undef, undef, 0.1;
like(http_get('/t1.html?a=1'), qr/^HTTP\/1.. 503 /m, 'slow - rejected');

like(http_get('/t1.html?a=2&b=2'), qr/^HTTP\/1.. 200 /m, 'both');
select undef, undef, undef, 0.1;
like(http_get('/t1.html?a=2&b=2'), qr/^HTTP\/1.. 503 /m, 'both - rejected');

like(http_get('/t1.html'), qr/^HTTP\/1.. 200 /m, 'no key');
like(http_get('/t1.html'), qr/^HTTP\/1.. 200 /m, 'no key - passed');

# nodelay

like(http_get('/t2.html?b=3'), qr/^HTTP\/1.. 200 /m, 'nodelay fast');
select undef, undef, undef, 0.1;
like(http_get('/t2.html?b=3'), qr/^HTTP\/1.. 200 /m, 'nodelay fast - passed');

like(http_get('/t2.html?a=3'), qr/^HTTP\/1.. 200 /m, 'nodelay slow');
select undef, undef, undef, 0.1;
like(http_get('/t2.html?a=3'), qr/^HTTP\/1.. 503 /m, 'nodelay slow - rejected');

like(http_get('/t2.html?a=4&b=4'), qr/^HTTP\/1.. 200 /m, 'nodelay both');
select undef, undef, undef, 0.1;
like(http_get('/t2.html?a=4&b=4'), qr/^HTTP\/1.. 503 /m,
	'nodelay both - rejected');

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