view proxy_unfinished.t @ 1021:ebdf239722b9

Tests: relaxed proxy_cache_lock.t nolock tests to fix on Solaris. Assumed that the order of responses being arrived in nolock case may be ignored. An important part of such case is that the only last response should be cached.
author Sergey Kandaurov <pluknet@nginx.com>
date Fri, 02 Sep 2016 12:17:35 +0300
parents 196d33c2bb45
children b82f54728e14
line wrap: on
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#!/usr/bin/perl

# (C) Maxim Dounin

# Tests for http proxy and prematurely closed connections.  Incomplete
# responses shouldn't loose information about their incompleteness.

# In particular, incomplete responses:
#
# - shouldn't be cached
#
# - if a response is sent using chunked transfer encoding,
#   final chunk shouldn't be sent

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

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;

my $t = Test::Nginx->new()->has(qw/http proxy cache sub/)->plan(15);

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

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    proxy_cache_path   %%TESTDIR%%/cache  levels=1:2
                       keys_zone=one:1m;

    server {
        listen       127.0.0.1:8080 sndbuf=32k;
        server_name  localhost;

        location / {
            sub_filter foo bar;
            sub_filter_types *;
            proxy_pass http://127.0.0.1:8081;
        }

        location /un/ {
            sub_filter foo bar;
            sub_filter_types *;
            proxy_pass http://127.0.0.1:8081/;
            proxy_buffering off;
        }

        location /cache/ {
            proxy_pass http://127.0.0.1:8081/;
            proxy_cache one;
            add_header X-Cache-Status $upstream_cache_status;
        }

        location /proxy/ {
            sub_filter foo bar;
            sub_filter_types *;
            proxy_pass http://127.0.0.1:8080/local/;
            proxy_buffer_size 1k;
            proxy_buffers 4 1k;
        }

        location /local/ {
            alias %%TESTDIR%%/;
        }
    }
}

EOF

$t->write_file('big.html', 'X' x (1024 * 1024) . 'finished');

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

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

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

# chunked encoding has enough information to don't cache a response,
# much like with Content-Length available

http_get('/cache/chunked');
like(http_get('/cache/chunked'), qr/MISS/, 'unfinished chunked');

# make sure there is no final chunk in unfinished responses

like(http_get_11('/length'), qr/unfinished(?!.*\x0d\x0a?0\x0d\x0a?)/s,
	'length no final chunk');
like(http_get_11('/chunked'), qr/unfinished(?!.*\x0d\x0a?0\x0d\x0a?)/s,
	'chunked no final chunk');

# but there is final chunk in complete responses

like(http_get_11('/length/ok'), qr/finished.*\x0d\x0a?0\x0d\x0a?/s,
	'length final chunk');
like(http_get_11('/chunked/ok'), qr/finished.*\x0d\x0a?0\x0d\x0a?/s,
	'chunked final chunk');

# the same with proxy_buffering set to off

like(http_get_11('/un/length'), qr/unfinished(?!.*\x0d\x0a?0\x0d\x0a?)/s,
	'unbuffered length no final chunk');
like(http_get_11('/un/chunked'), qr/unfinished(?!.*\x0d\x0a?0\x0d\x0a?)/s,
	'unbuffered chunked no final chunk');

like(http_get_11('/un/length/ok'), qr/finished.*\x0d\x0a?0\x0d\x0a?/s,
	'unbuffered length final chunk');
like(http_get_11('/un/chunked/ok'), qr/finished.*\x0d\x0a?0\x0d\x0a?/s,
	'unbuffered chunked final chunk');

# big responses

like(http_get('/big', sleep => 0.1), qr/unfinished/s, 'big unfinished');
like(http_get('/big/ok', sleep => 0.1), qr/finished/s, 'big finished');
like(http_get('/un/big', sleep => 0.1), qr/unfinished/s, 'big unfinished un');
like(http_get('/un/big/ok', sleep => 0.1), qr/finished/s, 'big finished un');

# if disk buffering fails for some reason, there should be
# no final chunk

chmod(0000, $t->testdir() . '/proxy_temp');
like(http_get_11('/proxy/big.html', sleep => 0.5),
	qr/X(?!.*\x0d\x0a?0\x0d\x0a?)|finished/s, 'no proxy temp');

chmod(0700, $t->testdir() . '/proxy_temp');

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

sub http_get_11 {
	my ($uri, %extra) = @_;

	return http(
		"GET $uri HTTP/1.1" . CRLF .
		"Connection: close" . CRLF .
		"Host: localhost" . CRLF . CRLF,
		%extra
	);
}

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

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

	local $SIG{PIPE} = 'IGNORE';

	while (my $client = $server->accept()) {
		$client->autoflush(1);

		my $headers = '';
		my $uri = '';

		while (<$client>) {
			$headers .= $_;
			last if (/^\x0d?\x0a?$/);
		}

		$uri = $1 if $headers =~ /^\S+\s+([^ ]+)\s+HTTP/i;

		if ($uri eq '/length') {
			print $client
				"HTTP/1.1 200 OK" . CRLF .
				"Content-Length: 100" . CRLF .
				"Cache-Control: max-age=300" . CRLF .
				"Connection: close" . CRLF .
				CRLF .
				"unfinished" . CRLF;

		} elsif ($uri eq '/length/ok') {
			print $client
				"HTTP/1.1 200 OK" . CRLF .
				"Content-Length: 10" . CRLF .
				"Cache-Control: max-age=300" . CRLF .
				"Connection: close" . CRLF .
				CRLF .
				"finished" . CRLF;

		} elsif ($uri eq '/big') {
			print $client
				"HTTP/1.1 200 OK" . CRLF .
				"Content-Length: 1000100" . CRLF .
				"Cache-Control: max-age=300" . CRLF .
				"Connection: close" . CRLF .
				CRLF;
			for (1 .. 10000) {
				print $client ("X" x 98) . CRLF;
			}
			print $client "unfinished" . CRLF;

		} elsif ($uri eq '/big/ok') {
			print $client
				"HTTP/1.1 200 OK" . CRLF .
				"Content-Length: 1000010" . CRLF .
				"Cache-Control: max-age=300" . CRLF .
				"Connection: close" . CRLF .
				CRLF;
			for (1 .. 10000) {
				print $client ("X" x 98) . CRLF;
			}
			print $client "finished" . CRLF;

		} elsif ($uri eq '/chunked') {
			print $client
				"HTTP/1.1 200 OK" . CRLF .
				"Transfer-Encoding: chunked" . CRLF .
				"Cache-Control: max-age=300" . CRLF .
				"Connection: close" . CRLF .
				CRLF .
				"ff" . CRLF .
				"unfinished" . CRLF;

		} elsif ($uri eq '/chunked/ok') {
			print $client
				"HTTP/1.1 200 OK" . CRLF .
				"Transfer-Encoding: chunked" . CRLF .
				"Cache-Control: max-age=300" . CRLF .
				"Connection: close" . CRLF .
				CRLF .
				"a" . CRLF .
				"finished" . CRLF .
				CRLF . "0" . CRLF . CRLF;
		}
	}
}

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