1 # Copyright (C) 2016 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";
33 $r = sysread($fh, $$out, 65536, length($$out));
34 } while (defined($r) && $r != 0);
35 defined $r or die "read failed: $!";
36 close $fh or die "close failed: $!";
38 ($? || $$out eq '') ? 0 : 1;
42 my ($self, $msg, $rdr) = @_;
43 _learn($self, $msg, $rdr, 'hamcmd');
47 my ($self, $msg, $rdr) = @_;
48 _learn($self, $msg, $rdr, 'spamcmd');
52 my ($self, $msg, $rdr, $field) = @_;
54 $rdr->{1} ||= $self->_devnull;
55 $rdr->{2} ||= $self->_devnull;
57 $rdr->{0} = _msg_to_fd($self, $msg, \$tmp);
58 my $pid = spawn($self->{$field}, undef, $rdr);
65 my $fd = $self->{-devnullfd};
66 return $fd if defined $fd;
67 open my $fh, '+>', '/dev/null' or
68 die "failed to open /dev/null: $!";
69 $self->{-devnull} = $fh;
70 $self->{-devnullfd} = fileno($fh);
74 my ($self, $msg, $tmpref) = @_;
77 if (my $ref = ref($msg)) {
79 return $msg->fileno if $ref ne 'SCALAR' && $msg->can('fileno');
81 $tmpfh = IO::File->new_tmpfile;
83 $msg = \($msg->as_string) if $ref ne 'SCALAR';
84 print $tmpfh $$msg or die "failed to print: $!";
85 sysseek($tmpfh, 0, SEEK_SET) or
86 die "sysseek(fh) failed: $!";
89 return fileno($tmpfh);