Mercurial > hg > nginx-tests
view http_resolver_ipv4.t @ 1888:cc13f7b098db
Tests: avoid premature stream reset in h3_limit_req.t.
STREAM and RESET_STREAM frames could be batched, which prevents the stream
from being processed and changes the status code. The fix is to wait for
the stream acknowledgment. Here we just look at the largest acknowledged,
this should be enough for simple cases.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Tue, 04 Apr 2023 00:33:54 +0400 |
parents | 0b06942f0b8b |
children | 1786f49cca17 |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Eugene Grebenschikov # (C) Nginx, Inc. # Tests for http resolver with ipv4/ipv6 parameters. ############################################################################### 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 rewrite/); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% server { listen 127.0.0.1:8080; server_name localhost; location / { proxy_pass http://$arg_h:%%PORT_8081%%/; resolver 127.0.0.1:%%PORT_8980_UDP%% ipv4=on ipv6=on; } location /ipv4 { proxy_pass http://$arg_h:%%PORT_8081%%/; resolver 127.0.0.1:%%PORT_8980_UDP%% ipv4=on ipv6=off; } location /ipv6 { proxy_pass http://$arg_h:%%PORT_8081%%/; resolver 127.0.0.1:%%PORT_8980_UDP%% ipv4=off ipv6=on; } } server { listen 127.0.0.1:8081; server_name localhost; location / { return 200 "ipv4"; } } server { listen [::1]:%%PORT_8081%%; server_name localhost; location / { return 200 "ipv6"; } } } EOF $t->try_run('no resolver ipv4')->plan(3); $t->run_daemon(\&dns_daemon, port(8980), $t); $t->waitforfile($t->testdir . '/' . port(8980)); ############################################################################### like(many('/', 10), qr/ipv4: \d+, ipv6: \d+/, 'ipv4 ipv6'); is(many('/ipv4', 10), 'ipv4: 10', 'ipv4 only'); is(many('/ipv6', 10), 'ipv6: 10', 'ipv6 only'); ############################################################################### sub many { my ($uri, $count) = @_; my %hits; for (1 .. $count) { if (http_get("$uri?h=example.com") =~ /(ipv(4|6))/) {; $hits{$1} = 0 unless defined $hits{$1}; $hits{$1}++; } } return join ', ', map { $_ . ": " . $hits{$_} } sort keys %hits; } ############################################################################### sub reply_handler { my ($recv_data, $port) = @_; my (@name, @rdata); use constant NOERROR => 0; use constant A => 1; use constant AAAA => 28; use constant IN => 1; # default values my ($hdr, $rcode, $ttl) = (0x8180, NOERROR, 3600); # decode name my ($len, $offset) = (undef, 12); while (1) { $len = unpack("\@$offset C", $recv_data); last if $len == 0; $offset++; push @name, unpack("\@$offset A$len", $recv_data); $offset += $len; } $offset -= 1; my ($id, $type, $class) = unpack("n x$offset n2", $recv_data); my $name = join('.', @name); if ($name eq 'example.com') { if ($type == A) { push @rdata, rd_addr($ttl, '127.0.0.1'); } if ($type == AAAA) { push @rdata, rd_addr6($ttl, "::1"); } } $len = @name; pack("n6 (C/a*)$len x n2", $id, $hdr | $rcode, 1, scalar @rdata, 0, 0, @name, $type, $class) . join('', @rdata); } sub rd_addr { my ($ttl, $addr) = @_; my $code = 'split(/\./, $addr)'; pack 'n3N nC4', 0xc00c, A, IN, $ttl, eval "scalar $code", eval($code); } sub expand_ip6 { my ($addr) = @_; substr ($addr, index($addr, "::"), 2) = join "0", map { ":" } (0 .. 8 - (split /:/, $addr) + 1); map { hex "0" x (4 - length $_) . "$_" } split /:/, $addr; } sub rd_addr6 { my ($ttl, $addr) = @_; pack 'n3N nn8', 0xc00c, AAAA, IN, $ttl, 16, expand_ip6($addr); } sub dns_daemon { my ($port, $t) = @_; my ($data, $recv_data); my $socket = IO::Socket::INET->new( LocalAddr => '127.0.0.1', LocalPort => $port, Proto => 'udp', ) or die "Can't create listening socket: $!\n"; # signal we are ready open my $fh, '>', $t->testdir() . '/' . $port; close $fh; while (1) { $socket->recv($recv_data, 65536); $data = reply_handler($recv_data, $port); $socket->send($data); } } ###############################################################################