view scgi_cache.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 196d33c2bb45
children
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#!/usr/bin/perl

# (C) Maxim Dounin

# Tests for scgi_cache.

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

use warnings;
use strict;

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

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

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

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

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

eval { require SCGI; };
plan(skip_all => 'SCGI not installed') if $@;

my $t = Test::Nginx->new()->has(qw/http scgi cache/)->plan(10)
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    scgi_cache_path  %%TESTDIR%%/cache  keys_zone=one:1m;
    scgi_cache_key   $request_uri;

    add_header       X-Cache-Status  $upstream_cache_status;

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        location / {
            scgi_pass 127.0.0.1:8081;
            scgi_param SCGI 1;
            scgi_param REQUEST_URI $uri;
            scgi_cache one;
        }
    }
}

EOF

$t->run_daemon(\&scgi_daemon);
$t->run()->waitforsocket('127.0.0.1:' . port(8081));

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

like(http_get('/len'), qr/MISS/, 'length');
like(http_get('/len'), qr/HIT/, 'length cached');

like(http_get('/nolen'), qr/MISS/, 'no length');
like(http_get('/nolen'), qr/HIT/, 'no length cached');

like(http_get('/len/empty'), qr/MISS/, 'empty length');
like(http_get('/len/empty'), qr/HIT/, 'empty length cached');

like(http_get('/nolen/empty'), qr/MISS/, 'empty no length');
like(http_get('/nolen/empty'), qr/HIT/, 'empty no length cached');

like(http_get('/unfinished'), qr/MISS/, 'unfinished');
like(http_get('/unfinished'), qr/MISS/, 'unfinished not cached');

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

sub scgi_daemon {
	my $server = IO::Socket::INET->new(
		Proto => 'tcp',
		LocalHost => '127.0.0.1:' . port(8081),
		Listen => 5,
		Reuse => 1
	)
		or die "Can't create listening socket: $!\n";

	my $scgi = SCGI->new($server, blocking => 1);
	my %count;

	while (my $request = $scgi->accept()) {
		eval { $request->read_env(); };
		next if $@;

		my $uri = $request->env->{REQUEST_URI} || '';
		my $c = $request->connection();

		$count{$uri} ||= 0;
		$count{$uri}++;

		if ($uri eq '/len') {
			$c->print(
				"Content-Length: 9" . CRLF .
				"Content-Type: text/html" . CRLF .
				"Cache-Control: max-age=300" . CRLF . CRLF .
				"test body"
			);

		} elsif ($uri eq '/nolen') {
			$c->print(
				"Content-Type: text/html" . CRLF .
				"Cache-Control: max-age=300" . CRLF . CRLF .
				"test body"
			);

		} elsif ($uri eq '/len/empty') {
			$c->print(
				"Content-Length: 0" . CRLF .
				"Content-Type: text/html" . CRLF .
				"Cache-Control: max-age=300" . CRLF . CRLF
			);

		} elsif ($uri eq '/nolen/empty') {
			$c->print(
				"Content-Type: text/html" . CRLF .
				"Cache-Control: max-age=300" . CRLF . CRLF
			);

		} elsif ($uri eq '/unfinished') {
			$c->print(
				"Content-Length: 10" . CRLF .
				"Content-Type: text/html" . CRLF .
				"Cache-Control: max-age=300" . CRLF . CRLF
			);
		}
	}
}

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