Mercurial > hg > nginx-tests
view stream_resolver.t @ 1993:6b1222de8286
Tests: fixed prerequisites for regular expressions in maps.
Regular expressions in maps are only recognized when nginx is compiled
with the PCRE library. The simplest way to make sure it is the case
is to require the rewrite module, which cannot be compiled in without
the PCRE library.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 01 Aug 2024 10:37:20 +0300 |
parents | f3ba4c74de31 |
children | d329b05e20fa |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for stream upstream name resolved, proxy_next_upstream_tries. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::Stream qw/ stream /; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/stream stream_map stream_return/) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% map $server_port $upstream { %%PORT_8081%% a.example.com:%%PORT_8090%%; %%PORT_8082%% a.example.com; %%PORT_8083%% nx.example.com:%%PORT_8082%%; } map $server_port $many { default $server_port.many.example.com; } resolver 127.0.0.1:%%PORT_8980_UDP%%; server { listen 127.0.0.1:8081; listen 127.0.0.1:8082; listen 127.0.0.1:8083; proxy_pass $upstream; } server { listen 127.0.0.1:8084; proxy_pass $many:%%PORT_8090%%; proxy_next_upstream_tries 3; proxy_connect_timeout 1s; } server { listen 127.0.0.1:8085; proxy_pass $many:%%PORT_8090%%; proxy_next_upstream_tries 2; proxy_connect_timeout 1s; } server { listen 127.0.0.1:8086; proxy_pass $many:%%PORT_8090%%; proxy_next_upstream_tries 0; proxy_connect_timeout 1s; } server { listen 127.0.0.1:8090; return SEE-THIS; } } EOF $t->run_daemon(\&dns_daemon, port(8980), $t); $t->run()->plan(8); $t->waitforfile($t->testdir . '/' . port(8980)); ############################################################################### ok(stream('127.0.0.1:' . port(8081))->read(), 'resolver'); ok(!stream('127.0.0.1:' . port(8082))->read(), 'upstream no port'); ok(!stream('127.0.0.1:' . port(8083))->read(), 'name not found'); ok(stream('127.0.0.1:' . port(8084))->read(), 'resolved tries'); ok(!stream('127.0.0.1:' . port(8085))->read(), 'resolved tries limited'); ok(stream('127.0.0.1:' . port(8086))->read(), 'resolved tries zero'); $t->stop(); SKIP: { skip "relies on error log contents", 2 unless $ENV{TEST_NGINX_UNSAFE}; my $log = `grep -F '[error]' ${\($t->testdir())}/error.log`; like($log, qr/no port in upstream "a.example.com"/, 'log - no port'); like($log, qr/nx.example.com could not be resolved/, 'log - not found'); } ############################################################################### sub reply_handler { my ($recv_data, $port) = @_; my (@name, @rdata); use constant NOERROR => 0; use constant A => 1; use constant IN => 1; # default values my ($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 'a.example.com' && $type == A) { push @rdata, rd_addr($ttl, '127.0.0.1'); } elsif ($name =~ qr/many.example.com/ && $type == A) { push @rdata, rd_addr($ttl, '127.0.0.2'); push @rdata, rd_addr($ttl, '127.0.0.2'); push @rdata, rd_addr($ttl, '127.0.0.1'); } $len = @name; pack("n6 (C/a*)$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)'; return pack 'n3N', 0xc00c, A, IN, $ttl if $addr eq ''; pack 'n3N nC4', 0xc00c, A, IN, $ttl, eval "scalar $code", eval($code); } 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"; local $SIG{PIPE} = 'IGNORE'; # 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); } } ###############################################################################