view http_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 5ac6efbe5552
children
line wrap: on
line source

#!/usr/bin/perl

# (C) Maxim Dounin
# (C) Valentin Bartenev

# Tests for http 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 rewrite proxy/)->plan(7);

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

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    log_format cc "$uri: $sent_http_cache_control";

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        access_log %%TESTDIR%%/cc.log cc;

        location / {
            return 200 OK;
        }

        location /arg {
            return 200 $arg_l:$arg_;
        }

        location /set {
            add_header Cache-Control max-age=3600;
            add_header Cache-Control private;
            add_header Cache-Control must-revalidate;
            return 200 OK;
        }

        location /redefine {
            expires epoch;
            proxy_pass http://127.0.0.1:8080/set;
        }

        location /limit_rate {
            set $limit_rate $arg_l;
            add_header X-Rate $limit_rate;
            return 200 OK;
        }
    }
}

EOF

$t->run();

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

http_get('/');
http_get('/../bad_uri');
http_get('/redefine');

like(http_get('/arg?l=42'), qr/42:$/, 'arg');

# $limit_rate is a special variable that has its own set_handler / get_handler

like(http_get('/limit_rate?l=40k'), qr/X-Rate: 40960/, 'limit_rate handlers');
like(http_get('/limit_rate'), qr/X-Rate: 0/, 'limit_rate invalid');

$t->stop();

my $log = $t->read_file('cc.log');
like($log, qr!^: -$!m, 'no uri');
like($log, qr!^/: -$!m, 'no header');
like($log, qr!^/set: max-age=3600, private, must-revalidate$!m,
	'multi headers');

like($log, qr!^/redefine: no-cache$!m, 'ignoring headers with (hash == 0)');

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