view not_modified_proxy.t @ 1983:c7315caf2110

Tests: optimized processing of large QUIC packets with padding. Path MTU discovery packets might contain a lot of padding, and creating a copy of the whole buffer for each PADDING frame, which is just one byte with type 0, consumes lots of resources. This was seen to result in flapping of at least h3_keepalive.t and h3_ssl_early_data.t tests. Fix is to copy at most 8 bytes for parse_int() calls when parsing frame types.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 03 Jun 2024 04:17:28 +0300
parents 196d33c2bb45
children
line wrap: on
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#!/usr/bin/perl

# (C) Maxim Dounin

# Tests for not modified filter module and it's interaction with proxy.
#
# Notably, requests which are proxied should be skipped (that is, if
# a backend returned 200, we should pass 200 to a client without any
# attempts to handle conditional headers in the request), but responses
# from cache should be handled.

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

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/)->plan(12);

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

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

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

    proxy_set_header If-Modified-Since "";
    proxy_set_header If-Unmodified-Since "";
    proxy_set_header If-None-Match "";

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        location / {
        }

        location /etag {
            add_header Last-Modified "";
        }

        location /proxy/ {
            proxy_pass http://127.0.0.1:8080/;
        }

        location /cache/ {
            proxy_pass http://127.0.0.1:8080/;
            proxy_cache one;
            proxy_cache_valid 200 1y;
        }
    }
}

EOF

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

$t->run();

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

my ($t1, $lm, $etag);

$t1 = http_get('/cache/t');
$t1 =~ /Last-Modified: (.*)/; $lm = $1;
$t1 =~ /ETag: (.*)/; $etag = $1;

like(http_get_ims('/t', $lm), qr/ 304 /, 'if-modified-since');
like(http_get_ims('/proxy/t', $lm), qr/ 200 /, 'ims proxy ignored');
like(http_get_ims('/cache/t', $lm), qr/ 304 /, 'ims from cache');

$t1 = 'Fri, 05 Jul 1985 14:30:52 GMT';

like(http_get_iums('/t', $t1), qr/ 412 /, 'if-unmodified-since');
like(http_get_iums('/proxy/t', $t1), qr/ 200 /, 'iums proxy ignored');
like(http_get_iums('/cache/t', $t1), qr/ 412 /, 'iums from cache');

like(http_get_inm('/t', $etag), qr/ 304 /, 'if-none-match');
like(http_get_inm('/proxy/t', $etag), qr/ 200 /, 'inm proxy ignored');
like(http_get_inm('/cache/t', $etag), qr/ 304 /, 'inm from cache');

# backend response with ETag only, no Last-Modified

$t1 = http_get('/cache/etag');
$t1 =~ /ETag: (.*)/; $etag = $1;

like(http_get_inm('/etag', $etag), qr/ 304 /, 'if-none-match etag only');
like(http_get_inm('/proxy/etag', $etag), qr/ 200 /, 'inm etag proxy ignored');
like(http_get_inm('/cache/etag', $etag), qr/ 304 /, 'inm etag from cache');

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

sub http_get_ims {
	my ($url, $ims) = @_;
	return http(<<EOF);
GET $url HTTP/1.0
Host: localhost
If-Modified-Since: $ims

EOF
}

sub http_get_iums {
	my ($url, $ims) = @_;
	return http(<<EOF);
GET $url HTTP/1.0
Host: localhost
If-Unmodified-Since: $ims

EOF
}

sub http_get_inm {
	my ($url, $inm) = @_;
	return http(<<EOF);
GET $url HTTP/1.0
Host: localhost
If-None-Match: $inm

EOF
}

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