# Copyright (C) 2016-2020 all contributors
# License: AGPL-3.0+
# Tests for binding Unix domain sockets
use strict;
use warnings;
use Test::More;
use PublicInbox::TestCommon;
use Errno qw(EADDRINUSE);
require_mods(qw(Plack::Util Plack::Builder HTTP::Date HTTP::Status));
use IO::Socket::UNIX;
my ($tmpdir, $for_destroy) = tmpdir();
my $unix = "$tmpdir/unix.sock";
my $psgi = './t/httpd-corner.psgi';
my $out = "$tmpdir/out.log";
my $err = "$tmpdir/err.log";
my $td;
my $spawn_httpd = sub {
my (@args) = @_;
my $cmd = [ '-httpd', @args, "--stdout=$out", "--stderr=$err", $psgi ];
$td = start_script($cmd);
};
{
require PublicInbox::Daemon;
my $l = "$tmpdir/named.sock";
my $s = IO::Socket::UNIX->new(Listen => 5, Local => $l,
Type => SOCK_STREAM);
is(PublicInbox::Daemon::sockname($s), $l, 'sockname works for UNIX');
}
ok(!-S $unix, 'UNIX socket does not exist, yet');
$spawn_httpd->("-l$unix", '-W0');
my %o = (Peer => $unix, Type => SOCK_STREAM);
for (1..1000) {
last if -S $unix && IO::Socket::UNIX->new(%o);
select undef, undef, undef, 0.02
}
ok(-S $unix, 'UNIX socket was bound by -httpd');
sub check_sock ($) {
my ($unix) = @_;
my $sock = IO::Socket::UNIX->new(Peer => $unix, Type => SOCK_STREAM);
warn "E: $! connecting to $unix\n" unless defined $sock;
ok($sock, 'client UNIX socket connected');
ok($sock->write("GET /host-port HTTP/1.0\r\n\r\n"),
'wrote req to server');
ok($sock->read(my $buf, 4096), 'read response');
like($buf, qr!\r\n\r\n127\.0\.0\.1:0\z!,
'set REMOTE_ADDR and REMOTE_PORT for Unix socket');
}
check_sock($unix);
{ # do not clobber existing socket
my %err = ( 'linux' => EADDRINUSE, 'freebsd' => EADDRINUSE );
open my $out, '>>', "$tmpdir/1" or die "redirect failed: $!";
open my $err, '>>', "$tmpdir/2" or die "redirect failed: $!";
my $cmd = ['-httpd', '-l', $unix, '-W0', $psgi];
my $ftd = start_script($cmd, undef, { 1 => $out, 2 => $err });
$ftd->join;
isnt($?, 0, 'httpd failure set $?');
SKIP: {
my $ec = $err{$^O} or
skip("not sure if $^O fails with EADDRINUSE", 1);
is($? >> 8, $ec, 'httpd failed with EADDRINUSE');
};
open my $fh, "$tmpdir/2" or die "failed to open $tmpdir/2: $!";
local $/;
my $e = <$fh>;
like($e, qr/no listeners bound/i, 'got error message');
is(-s "$tmpdir/1", 0, 'stdout was empty');
}
{
is($td->kill, 1, 'terminate existing process');
$td->join;
is($?, 0, 'existing httpd exited successfully');
ok(-S $unix, 'unix socket still exists');
}
SKIP: {
require_mods('Net::Server::Daemonize', 20);
my $pid_file = "$tmpdir/pid";
for my $w (qw(-W0 -W1)) {
# wait for daemonization
$spawn_httpd->("-l$unix", '-D', '-P', $pid_file, $w);
$td->join;
is($?, 0, "daemonized $w process");
check_sock($unix);
ok(-f $pid_file, "$w pid file written");
open my $fh, '<', "$tmpdir/pid" or die "open failed: $!";
my $rpid = do { local $/; <$fh> };
chomp $rpid;
like($rpid, qr/\A\d+\z/s, "$w pid file looks like a pid");
is(kill('TERM', $rpid), 1, "signaled daemonized $w process");
for (1..100) {
kill(0, $rpid) or last;
select undef, undef, undef, 0.02;
}
is(kill(0, $rpid), 0, "daemonized $w process exited");
ok(!-e $pid_file, "$w pid file unlinked at exit");
}
}
done_testing();