1 # Copyright (C) 2016-2018 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
3 package PublicInbox::Spamcheck::Spamc;
6 use PublicInbox::Spawn qw(popen_rd spawn);
8 use Fcntl qw(:DEFAULT SEEK_SET);
13 checkcmd => [qw(spamc -E --headers)],
14 hamcmd => [qw(spamc -L ham)],
15 spamcmd => [qw(spamc -L spam)],
20 my ($self, $msg, $out) = @_;
23 my $fd = _msg_to_fd($self, $msg, \$tmp);
24 my $rdr = { 0 => $fd };
25 my ($fh, $pid) = popen_rd($self->{checkcmd}, undef, $rdr);
26 defined $pid or die "failed to popen_rd spamc: $!\n";
34 $r = sysread($fh, $$out, 65536, length($$out));
35 } while (defined($r) && $r != 0);
37 goto again if $!{EINTR};
38 die "read failed: $!";
40 close $fh or die "close failed: $!";
42 ($? || $$out eq '') ? 0 : 1;
46 my ($self, $msg, $rdr) = @_;
47 _learn($self, $msg, $rdr, 'hamcmd');
51 my ($self, $msg, $rdr) = @_;
52 _learn($self, $msg, $rdr, 'spamcmd');
56 my ($self, $msg, $rdr, $field) = @_;
58 $rdr->{1} ||= $self->_devnull;
59 $rdr->{2} ||= $self->_devnull;
61 $rdr->{0} = _msg_to_fd($self, $msg, \$tmp);
62 my $pid = spawn($self->{$field}, undef, $rdr);
69 my $fd = $self->{-devnullfd};
70 return $fd if defined $fd;
71 open my $fh, '+>', '/dev/null' or
72 die "failed to open /dev/null: $!";
73 $self->{-devnull} = $fh;
74 $self->{-devnullfd} = fileno($fh);
78 my ($self, $msg, $tmpref) = @_;
80 if (my $ref = ref($msg)) {
81 my $fileno = eval { fileno($msg) };
82 return $fileno if defined $fileno;
84 open(my $tmpfh, '+>', undef) or die "failed to open: $!";
86 $msg = \($msg->as_string) if $ref ne 'SCALAR';
87 print $tmpfh $$msg or die "failed to print: $!";
88 sysseek($tmpfh, 0, SEEK_SET) or
89 die "sysseek(fh) failed: $!";
92 return fileno($tmpfh);