view mail_max_errors.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 2a0a6035a1af
children
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#!/usr/bin/perl

# (C) Maxim Dounin
# (C) Nginx, Inc.

# Tests for mail max_errors.

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

use warnings;
use strict;

use Test::More;
use Socket qw/ CRLF /;

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

use lib 'lib';
use Test::Nginx;
use Test::Nginx::IMAP;
use Test::Nginx::POP3;
use Test::Nginx::SMTP;

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

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

local $SIG{PIPE} = 'IGNORE';

my $t = Test::Nginx->new()->has(qw/mail imap pop3 smtp/)
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

mail {
    auth_http  http://127.0.0.1:8080; # unused

    max_errors 2;

    server {
        listen     127.0.0.1:8143;
        protocol   imap;
    }

    server {
        listen     127.0.0.1:8110;
        protocol   pop3;
    }

    server {
        listen     127.0.0.1:8025;
        protocol   smtp;
    }
}

EOF

$t->run()->plan(18);

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

# imap

my $s = Test::Nginx::IMAP->new();
$s->read();

$s->send('a01 FOO');
$s->check(qr/^a01 BAD/, 'imap first error');
$s->send('a02 BAR');
$s->check(qr/^a02 BAD/, 'imap second error');
$s->send('a03 BAZZ');
$s->check(qr/^$/, 'imap max errors');

$s = Test::Nginx::IMAP->new();
$s->read();

$s->send('a01 FOO' . CRLF . 'a02 BAR' . CRLF . 'a03 BAZZ');
$s->check(qr/^a01 BAD/, 'imap pipelined first error');
$s->check(qr/^a02 BAD/, 'imap pipelined second error');
$s->check(qr/^$/, 'imap pipelined max errors');

# pop3

$s = Test::Nginx::POP3->new();
$s->read();

$s->send('FOO');
$s->check(qr/^-ERR/, 'pop3 first error');
$s->send('BAR');
$s->check(qr/^-ERR/, 'pop3 second error');
$s->send('BAZZ');
$s->check(qr/^$/, 'pop3 max errors');

$s = Test::Nginx::POP3->new();
$s->read();

$s->send('FOO' . CRLF . 'BAR' . CRLF . 'BAZZ');
$s->check(qr/^-ERR/, 'pop3 pipelined first error');
$s->check(qr/^-ERR/, 'pop3 pipelined second error');
$s->check(qr/^$/, 'pop3 pipelined max errors');

# smtp

$s = Test::Nginx::SMTP->new();
$s->read();

$s->send('FOO');
$s->check(qr/^5.. /, 'smtp first error');
$s->send('BAR');
$s->check(qr/^5.. /, 'smtp second error');
$s->send('BAZZ');
$s->check(qr/^$/, 'smtp max errors');

$s = Test::Nginx::SMTP->new();
$s->read();

$s->send('FOO' . CRLF . 'BAR' . CRLF . 'BAZZ');
$s->check(qr/^5.. /, 'smtp pipelined first error');
$s->check(qr/^5.. /, 'smtp pipelined second error');
$s->check(qr/^$/, 'smtp pipelined max errors');

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