view fastcgi_split.t @ 1825:3629eda94c1b

Tests: handling of EWOULDBLOCK from sysread() with IO::Socket::SSL. With IO::Socket::SSL, when select() reports that the socket is readable, reading from it might still fail with EWOULDBLOCK, since no application data is available in the socket. In particular, this might happen with TLSv1.3 when a session ticket is received after the handshake. Fix is to explicitly check for EWOULDBLOCK errors.
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 21 Mar 2023 02:57:39 +0300
parents 882267679006
children
line wrap: on
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#!/usr/bin/perl

# (C) Maxim Dounin

# Test for fastcgi backend.
# Incorrect split headers handling after switching to next server,
# as reported by Lucas Molas.

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

use warnings;
use strict;

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

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

use lib 'lib';
use Test::Nginx;

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

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

eval { require FCGI; };
plan(skip_all => 'FCGI not installed') if $@;
plan(skip_all => 'win32') if $^O eq 'MSWin32';

my $t = Test::Nginx->new()->has(qw/http fastcgi/)->plan(1)
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    upstream u {
        server 127.0.0.1:8081;
        server 127.0.0.1:8082;
    }

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        location / {
            fastcgi_pass u;
            fastcgi_param REQUEST_URI $request_uri;
            fastcgi_next_upstream invalid_header;
        }
    }
}

EOF

$t->run_daemon(\&fastcgi_daemon, port(8081));
$t->run_daemon(\&fastcgi_daemon, port(8082));

$t->run();

$t->waitforsocket('127.0.0.1:' . port(8081));
$t->waitforsocket('127.0.0.1:' . port(8082));

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

like(http_get('/'), qr/^Good: header/ms, 'fastcgi next upstream');

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

sub fastcgi_daemon {
	my ($port) = @_;
	my $socket = FCGI::OpenSocket("127.0.0.1:$port", 5);
	my $request = FCGI::Request(\*STDIN, \*STDOUT, \*STDERR, \%ENV,
		$socket);

	my $count;
	while( $request->Accept() >= 0 ) {
		$count++;

		if ($port == port(8081)) {
			print 'BAD';
		}
		if ($port == port(8082)) {
			print 'Good: header' . CRLF . CRLF;
		}
	}

	FCGI::CloseSocket($socket);
}

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