view proxy_cache_bypass.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 766bcbb632ee
children
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#!/usr/bin/perl

# (C) Maxim Dounin

# Tests for http proxy cache, proxy_cache_bypass.

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

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 proxy cache rewrite/)->plan(8)
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

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

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        location / {
            proxy_pass http://127.0.0.1:8081;

            proxy_cache one;
            proxy_cache_key $uri;
            proxy_cache_bypass $arg_bypass;
            proxy_cache_valid any 1y;

            proxy_intercept_errors on;
            error_page 404 = @fallback;
        }

        location @fallback {
            return 403;
        }

        add_header X-Cache-Status $upstream_cache_status;
    }

    server {
        listen       127.0.0.1:8081;
        server_name  localhost;

        location / {
        }
    }
}

EOF

$t->write_file('t', 'SEE-THIS');

$t->run();

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

like(http_get('/t'), qr/SEE-THIS/, 'request');

$t->write_file('t', 'NOOP');

like(http_get('/t'), qr/SEE-THIS/, 'request cached');
like(http_get('/t?bypass=1'), qr/NOOP/, 'cache bypassed');
like(http_get('/t'), qr/NOOP/, 'cached after bypass');

# ticket #827, cache item "error" field was not cleared
# on cache bypass

like(http_get('/t2'), qr/403 Forbidden/, 'intercepted error');

$t->write_file('t2', 'NOOP');

like(http_get('/t2'), qr/403 Forbidden/, 'error cached');
like(http_get('/t2?bypass=1'), qr/NOOP/, 'error cache bypassed');
like(http_get('/t2'), qr/NOOP/, 'error cached after bypass');

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