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package t::Utils;
use POSIX;
use Test::More;
use HTTP::Tiny;
use Data::Dumper;
use JSON qw/encode_json/;
use Time::HiRes qw/time sleep/;
use Plack::Middleware::Chunked;
use constant {
SSL_CRT => 't/cert/server.crt',
SSL_KEY => 't/cert/server.key',
};
my $chars = 'qwertyuiop[]asdfghjkl;\'zxcvbnm,./QWERTYUIOP{}":LKJHGFDSAZXCVBNM<>?1234567890-=+_)(*&^%$#@!\\ ' . "\n\t\r";
sub _generate_sequence {
my $len = shift;
my $lc = length($chars);
my $out = '';
while ($len-- > 0) {
$out .= substr($chars, rand($lc), 1);
}
return $out;
}
my %PIDS;
sub _pids {
return \%PIDS;
}
sub _fork {
my ($cb, $lifetime) = @_;
$lifetime ||= 60;
my $pid = fork;
defined $pid or die "failed to fork: $!";
if ($pid != 0) {
# return in parent
$PIDS{$pid} = 1;
return $pid;
}
local $SIG{ALRM} = sub { POSIX::_exit(1) };
alarm($lifetime); # 60 sec of timeout
eval {
$cb->();
1;
} or do {
warn "$@\n";
POSIX::_exit(1); # avoid running END block
};
POSIX::_exit(0); # avoid running END block
}
sub _generaete_random_port {
return 10000 + int(rand(2000));
}
sub _start_plack_server_on_random_port {
my $opts = shift;
my $port = _generaete_random_port();
# I pass 127.0.0.1 to all server instances to make sure that we use IPv4 stack.
# I still want to use "localhost" to test DNS lookup for clients
return _start_plack_server({ host => '127.0.0.1', port => $port, %{ $opts || {} } }), "localhost", $port;
}
sub _start_plack_server {
my $args = shift;
my $host = $args->{host};
my $port = $args->{port};
my $ssl = $args->{ssl};
my $chunked = $args->{chunked};
my $keep_alive = $args->{keep_alive};
my $server = $args->{server};
my $pid = _fork(sub {
note(sprintf("starting plack server %s", Dumper($args)));
require Plack::Runner;
my $runner = Plack::Runner->new(defined $server ? (server => $server) : ());
my @opts = ("--host", $host, "--port", $port, "--no-default-middleware", "--max-requests", 1000000, "--workers", 1);
push @opts, ("--enable-ssl", '--ssl-key-file', SSL_KEY, '--ssl-cert-file', SSL_CRT) if $ssl;
push @opts, ("--keepalive-timeout", 300) if $keep_alive;
$runner->parse_options(@opts);
my @stats;
my $app = sub {
my $req = shift;
my $path = $req->{PATH_INFO};
if ($path eq '/') {
return [200, [], []];
} elsif ($path eq '/ping' ) {
return [200, [], ['pong']];
} elsif ($path eq '/reset') {
@stats = ();
return [200, [], []];
} elsif ($path eq '/report') {
return [200, [], [ encode_json(\@stats) ]];
} elsif ($path eq '/record') {
my $body = '';
read($req->{'psgi.input'}, $body, $req->{CONTENT_LENGTH} || 0);
push @stats, {
query_string => $req->{QUERY_STRING},
body_length => length($body),
time => time,
};
return [200, [ 'Content-Type' => $req->{CONTENT_TYPE} || '' ], [$body]];
} else {
die "invalid request $path\n";
}
};
$app = Plack::Middleware::Chunked->wrap($app) if $chunked;
$runner->run($app);
}, 300);
note("waiting for plack to be up");
my $ht = _get_http_tiny();
my $scheme = $ssl ? "https" : "http";
foreach (1..50) {
last if $ht->get("$scheme://$host:$port/ping")->{success};
sleep(0.1);
}
$ht->get("$scheme://$host:$port/ping")->{success}
or die "plack is not up";
note("plack is up");
return $pid;
}
sub _get_http_tiny {
return HTTP::Tiny->new(SSL_options => {
SSL_cert_file => SSL_CRT,
SSL_key_file => SSL_KEY,
SSL_verify_mode => 0, # SSL_VERIFY_NONE
});
}
sub _get_toxyproxy_addr {
return $ENV{TOXYPROXY} || "localhost:8474";
}
sub _check_toxyproxy_and_reset {
my $ht = HTTP::Tiny->new();
my $addr = _get_toxyproxy_addr();
return $ht->get("http://$addr/version")->{success}
}
sub new_toxic {
my ($name, $upstream, $toxic) = @_;
my $port = 13000 + int(rand(2000));
my $listen = "127.0.0.1:$port";
note("creating new proxy '$name' listening on $listen on upstreaming to $upstream");
my $ht = HTTP::Tiny->new();
my $addr = _get_toxyproxy_addr();
$ht->delete("http://$addr/proxies/$name");
my $result = $ht->post("http://$addr/proxies", { content => encode_json({
name => $name,
listen => $listen,
upstream => $upstream,
})});
$result->{success}
or die "failed to create new proxy '$name' in toxyproxy: " . $result->{reason};
my $upstream_toxic_name = "upstream_toxic_$name";
$result = $ht->post("http://$addr/proxies/$name/toxics", { content => encode_json({
name => $upstream_toxic_name,
stream => "upstream",
%{ $toxic },
})});
$result->{success} or die "failed to create new toxic '$upstream_toxic_name': " . $result->{reason};
my $downstream_toxic_name = "downstream_toxic_$name";
$result = $ht->post("http://$addr/proxies/$name/toxics", { content => encode_json({
name => $downstream_toxic_name,
stream => "downstream",
%{ $toxic },
})});
$result->{success} or die "failed to create new toxic '$downstream_toxic_name': " . $result->{reason};
return $listen;
}
1;
|
