1 # Copyright (C) 2016-2021 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
3 # Tests for binding Unix domain sockets
7 use PublicInbox::TestCommon;
8 use Errno qw(EADDRINUSE);
11 require_mods(qw(Plack::Util Plack::Builder HTTP::Date HTTP::Status));
13 my ($tmpdir, $for_destroy) = tmpdir();
14 my $unix = "$tmpdir/unix.sock";
15 my $psgi = './t/httpd-corner.psgi';
16 my $out = "$tmpdir/out.log";
17 my $err = "$tmpdir/err.log";
20 my $spawn_httpd = sub {
22 my $cmd = [ '-httpd', @args, "--stdout=$out", "--stderr=$err", $psgi ];
23 $td = start_script($cmd);
27 require PublicInbox::Daemon;
28 my $l = "$tmpdir/named.sock";
29 my $s = IO::Socket::UNIX->new(Listen => 5, Local => $l,
31 is(PublicInbox::Daemon::sockname($s), $l, 'sockname works for UNIX');
34 ok(!-S $unix, 'UNIX socket does not exist, yet');
35 $spawn_httpd->("-l$unix", '-W0');
36 my %o = (Peer => $unix, Type => SOCK_STREAM);
38 last if -S $unix && IO::Socket::UNIX->new(%o);
39 select undef, undef, undef, 0.02
42 ok(-S $unix, 'UNIX socket was bound by -httpd');
45 my $sock = IO::Socket::UNIX->new(Peer => $unix, Type => SOCK_STREAM)
46 // BAIL_OUT "E: $! connecting to $unix";
47 ok($sock->write("GET /host-port HTTP/1.0\r\n\r\n"),
48 'wrote req to server');
49 ok($sock->read(my $buf, 4096), 'read response');
50 like($buf, qr!\r\n\r\n127\.0\.0\.1 0\z!,
51 'set REMOTE_ADDR and REMOTE_PORT for Unix socket');
56 { # do not clobber existing socket
57 my %err = ( 'linux' => EADDRINUSE, 'freebsd' => EADDRINUSE );
58 open my $out, '>>', "$tmpdir/1" or die "redirect failed: $!";
59 open my $err, '>>', "$tmpdir/2" or die "redirect failed: $!";
60 my $cmd = ['-httpd', '-l', $unix, '-W0', $psgi];
61 my $ftd = start_script($cmd, undef, { 1 => $out, 2 => $err });
63 isnt($?, 0, 'httpd failure set $?');
66 skip("not sure if $^O fails with EADDRINUSE", 1);
67 is($? >> 8, $ec, 'httpd failed with EADDRINUSE');
69 open my $fh, "$tmpdir/2" or die "failed to open $tmpdir/2: $!";
72 like($e, qr/no listeners bound/i, 'got error message');
73 is(-s "$tmpdir/1", 0, 'stdout was empty');
77 is($td->kill, 1, 'terminate existing process');
79 is($?, 0, 'existing httpd exited successfully');
80 ok(-S $unix, 'unix socket still exists');
83 # portable Perl can delay or miss signal dispatches due to races,
84 # so disable some tests on systems lacking signalfd(2) or EVFILT_SIGNAL
85 my $has_sigfd = PublicInbox::Sigfd->new({}, 0) ? 1 : $ENV{TEST_UNRELIABLE};
92 select undef, undef, undef, 0.012;
93 } until (time > $end);
94 Carp::confess('condition failed');
98 require_mods('Net::Server::Daemonize', 52);
99 $has_sigfd or skip('signalfd / EVFILT_SIGNAL not available', 52);
100 my $pid_file = "$tmpdir/pid";
103 open my $fh, '<', $f or die "open $f failed: $!";
104 my $pid = do { local $/; <$fh> };
105 chomp($pid) or die("pid file not ready $!");
109 for my $w (qw(-W0 -W1)) {
110 # wait for daemonization
111 $spawn_httpd->("-l$unix", '-D', '-P', $pid_file, $w);
113 is($?, 0, "daemonized $w process");
115 ok(-s $pid_file, "$w pid file written");
116 my $pid = $read_pid->($pid_file);
117 is(kill('TERM', $pid), 1, "signaled daemonized $w process");
118 delay_until(sub { !kill(0, $pid) });
119 is(kill(0, $pid), 0, "daemonized $w process exited");
120 ok(!-e $pid_file, "$w pid file unlinked at exit");
123 # try a USR2 upgrade with workers:
124 my $httpd = abs_path('blib/script/public-inbox-httpd');
125 $psgi = abs_path($psgi);
126 my $opt = { run_mode => 0 };
128 my @args = ("-l$unix", '-D', '-P', $pid_file, -1, $out, -2, $err);
129 $td = start_script([$httpd, @args, $psgi], undef, $opt);
131 is($?, 0, "daemonized process again");
133 ok(-s $pid_file, 'pid file written');
134 my $pid = $read_pid->($pid_file);
136 # stop worker to ensure check_sock below hits $new_pid
137 kill('TTOU', $pid) or die "TTOU failed: $!";
139 kill('USR2', $pid) or die "USR2 failed: $!";
141 $pid != (eval { $read_pid->($pid_file) } // $pid)
143 my $new_pid = $read_pid->($pid_file);
144 isnt($new_pid, $pid, 'new child started');
145 ok($new_pid > 0, '$new_pid valid');
146 delay_until(sub { -s "$pid_file.oldbin" });
147 my $old_pid = $read_pid->("$pid_file.oldbin");
148 is($old_pid, $pid, '.oldbin pid file written');
149 ok($old_pid > 0, '$old_pid valid');
151 check_sock($unix); # ensures $new_pid is ready to receive signals
153 # first, back out of the upgrade
154 kill('QUIT', $new_pid) or die "kill new PID failed: $!";
156 $pid == (eval { $read_pid->($pid_file) } // 0)
158 is($read_pid->($pid_file), $pid, 'old PID file restored');
159 ok(!-f "$pid_file.oldbin", '.oldbin PID file gone');
162 kill('USR2', $pid) or die "USR2 failed: $!";
164 $pid != (eval { $read_pid->($pid_file) } // $pid)
166 $new_pid = $read_pid->($pid_file);
167 isnt($new_pid, $pid, 'new child started again');
168 $old_pid = $read_pid->("$pid_file.oldbin");
169 is($old_pid, $pid, '.oldbin pid file written');
171 # drop the old parent
172 kill('QUIT', $old_pid) or die "QUIT failed: $!";
173 delay_until(sub { !kill(0, $old_pid) });
174 ok(!-f "$pid_file.oldbin", '.oldbin PID file gone');
178 kill('QUIT', $new_pid) or die "QUIT failed: $!";
179 delay_until(sub { !kill(0, $new_pid) });
180 ok(!-f $pid_file, 'PID file is gone');
183 # try USR2 without workers (-W0)
184 $td = start_script([$httpd, @args, '-W0', $psgi], undef, $opt);
186 is($?, 0, 'daemonized w/o workers');
188 $pid = $read_pid->($pid_file);
190 # replace running process
191 kill('USR2', $pid) or die "USR2 failed: $!";
192 delay_until(sub { !kill(0, $pid) });
195 $pid = $read_pid->($pid_file);
196 kill('QUIT', $pid) or die "USR2 failed: $!";
197 delay_until(sub { !kill(0, $pid) });
198 ok(!-f $pid_file, 'PID file is gone');