--- /dev/null
+# Copyright (C) 2019 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+
+# Integration test to validate compression.
+use strict;
+use warnings;
+use Test::More;
+use Symbol qw(gensym);
+use Time::HiRes qw(clock_gettime CLOCK_MONOTONIC);
+use POSIX qw(_exit);
+my $inbox_dir = $ENV{GIANT_INBOX_DIR};
+plan skip_all => "GIANT_INBOX_DIR not defined for $0" unless $inbox_dir;
+my $mid = $ENV{TEST_MID};
+
+# Net::NNTP is part of the standard library, but distros may split it off...
+foreach my $mod (qw(DBD::SQLite Net::NNTP Compress::Raw::Zlib)) {
+ eval "require $mod";
+ plan skip_all => "$mod missing for $0" if $@;
+}
+
+my $test_compress = Net::NNTP->can('compress');
+if (!$test_compress) {
+ diag 'Your Net::NNTP does not yet support compression';
+ diag 'See: https://rt.cpan.org/Ticket/Display.html?id=129967';
+}
+my $test_tls = $ENV{TEST_SKIP_TLS} ? 0 : eval { require IO::Socket::SSL };
+my $cert = 'certs/server-cert.pem';
+my $key = 'certs/server-key.pem';
+if ($test_tls && !-r $key || !-r $cert) {
+ plan skip_all => "certs/ missing for $0, run $^X ./certs/create-certs.perl";
+}
+require './t/common.perl';
+my ($tmpdir, $ftd) = tmpdir();
+$File::Temp::KEEP_ALL = !!$ENV{TEST_KEEP_TMP};
+my (%OPT, $td, $host_port, $group);
+my $batch = 1000;
+if (($ENV{NNTP_TEST_URL} // '') =~ m!\Anntp://([^/]+)/([^/]+)\z!) {
+ ($host_port, $group) = ($1, $2);
+ $host_port .= ":119" unless index($host_port, ':') > 0;
+} else {
+ make_local_server();
+}
+my $test_article = $ENV{TEST_ARTICLE} // 0;
+my $test_xover = $ENV{TEST_XOVER} // 1;
+
+if ($test_tls) {
+ my $nntp = Net::NNTP->new($host_port, %OPT);
+ ok($nntp->starttls, 'STARTTLS works');
+ ok($nntp->compress, 'COMPRESS works') if $test_compress;
+ ok($nntp->quit, 'QUIT after starttls OK');
+}
+if ($test_compress) {
+ my $nntp = Net::NNTP->new($host_port, %OPT);
+ ok($nntp->compress, 'COMPRESS works');
+ ok($nntp->quit, 'QUIT after compress OK');
+}
+
+sub do_get_all {
+ my ($methods) = @_;
+ my $desc = join(',', @$methods);
+ my $t0 = clock_gettime(CLOCK_MONOTONIC);
+ my $dig = Digest::SHA->new(1);
+ my $digfh = gensym;
+ my $tmpfh;
+ if ($File::Temp::KEEP_ALL) {
+ open $tmpfh, '>', "$tmpdir/$desc.raw" or die $!;
+ }
+ my $tmp = { dig => $dig, tmpfh => $tmpfh };
+ tie *$digfh, 'DigestPipe', $tmp;
+ my $nntp = Net::NNTP->new($host_port, %OPT);
+ $nntp->article("<$mid>", $digfh) if $mid;
+ foreach my $m (@$methods) {
+ my $res = $nntp->$m;
+ print STDERR "# $m got $res ($desc)\n" if !$res;
+ }
+ $nntp->article("<$mid>", $digfh) if $mid;
+ my ($num, $first, $last) = $nntp->group($group);
+ unless (defined $num && defined $first && defined $last) {
+ warn "Invalid group\n";
+ return undef;
+ }
+ my $i;
+ for ($i = $first; $i < $last; $i += $batch) {
+ my $j = $i + $batch - 1;
+ $j = $last if $j > $last;
+ if ($test_xover) {
+ my $xover = $nntp->xover("$i-$j");
+ for my $n (sort { $a <=> $b } keys %$xover) {
+ my $line = join("\t", @{$xover->{$n}});
+ $line =~ tr/\r//d;
+ $dig->add("$n\t".$line);
+ }
+ }
+ if ($test_article) {
+ for my $n ($i..$j) {
+ $nntp->article($n, $digfh) and next;
+ next if $nntp->code == 423;
+ my $res = $nntp->code.' '. $nntp->message;
+
+ $res =~ tr/\r\n//d;
+ print STDERR "# Article $n ($desc): $res\n";
+ }
+ }
+ }
+
+ # hacky bytes_read thing added to Net::NNTP for testing:
+ my $bytes_read = '';
+ if ($nntp->can('bytes_read')) {
+ $bytes_read .= ' '.$nntp->bytes_read.'b';
+ }
+ my $q = $nntp->quit;
+ print STDERR "# quit failed: ".$nntp->code."\n" if !$q;
+ my $elapsed = sprintf('%0.3f', clock_gettime(CLOCK_MONOTONIC) - $t0);
+ my $res = $dig->hexdigest;
+ print STDERR "# $desc - $res (${elapsed}s)$bytes_read\n";
+ $res;
+}
+my @tests = ([]);
+push @tests, [ 'compress' ] if $test_compress;
+push @tests, [ 'starttls' ] if $test_tls;
+push @tests, [ 'starttls', 'compress' ] if $test_tls && $test_compress;
+my (@keys, %thr, %res);
+for my $m (@tests) {
+ my $key = join(',', @$m);
+ push @keys, $key;
+ pipe(my ($r, $w)) or die;
+ my $pid = fork;
+ if ($pid == 0) {
+ close $r or die;
+ my $res = do_get_all($m);
+ print $w $res or die;
+ $w->flush;
+ _exit(0);
+ }
+ close $w or die;
+ $thr{$key} = [ $pid, $r ];
+}
+for my $key (@keys) {
+ my ($pid, $r) = @{delete $thr{$key}};
+ local $/;
+ $res{$key} = <$r>;
+ defined $res{$key} or die "nothing for $key";
+ my $w = waitpid($pid, 0);
+ defined($w) or die;
+ $w == $pid or die "waitpid($pid) != $w)";
+ is($?, 0, "`$key' exited successfully")
+}
+
+my $plain = $res{''};
+ok($plain, "plain got $plain");
+is($res{$_}, $plain, "$_ matches '' result") for @keys;
+
+done_testing();
+
+sub make_local_server {
+ require PublicInbox::Inbox;
+ $group = 'inbox.test.perf.nntpd';
+ my $ibx = { inboxdir => $inbox_dir, newsgroup => $group };
+ $ibx = PublicInbox::Inbox->new($ibx);
+ my $pi_config = "$tmpdir/config";
+ {
+ open my $fh, '>', $pi_config or die "open($pi_config): $!";
+ print $fh <<"" or die "print $pi_config: $!";
+[publicinbox "test"]
+ newsgroup = $group
+ inboxdir = $inbox_dir
+ address = test\@example.com
+
+ close $fh or die "close($pi_config): $!";
+ }
+ my ($out, $err) = ("$tmpdir/out", "$tmpdir/err");
+ for ($out, $err) {
+ open my $fh, '>', $_ or die "truncate: $!";
+ }
+ my $sock = tcp_server();
+ ok($sock, 'sock created');
+ $host_port = $sock->sockhost . ':' . $sock->sockport;
+
+ # not using multiple workers, here, since we want to increase
+ # the chance of tripping concurrency bugs within PublicInbox/NNTP*.pm
+ my $cmd = [ '-nntpd', "--stdout=$out", "--stderr=$err", '-W0' ];
+ push @$cmd, "-lnntp://$host_port";
+ if ($test_tls) {
+ push @$cmd, "--cert=$cert", "--key=$key";
+ %OPT = (
+ SSL_hostname => 'server.local',
+ SSL_verifycn_name => 'server.local',
+ SSL_verify_mode => IO::Socket::SSL::SSL_VERIFY_PEER(),
+ SSL_ca_file => 'certs/test-ca.pem',
+ );
+ }
+ print STDERR "# CMD ". join(' ', @$cmd). "\n";
+ my $env = { PI_CONFIG => $pi_config };
+ $td = start_script($cmd, $env, { 3 => $sock });
+}
+
+package DigestPipe;
+use strict;
+use warnings;
+
+sub TIEHANDLE {
+ my ($class, $self) = @_;
+ bless $self, $class;
+}
+
+sub PRINT {
+ my $self = shift;
+ my $data = join('', @_);
+ # Net::NNTP emit different line-endings depending on TLS or not...:
+ $data =~ tr/\r//d;
+ $self->{dig}->add($data);
+ if (my $tmpfh = $self->{tmpfh}) {
+ print $tmpfh $data;
+ }
+ 1;
+}
+1;