2 # $Id: spamscan.in,v 1.7 2004/01/14 19:41:18 cjwatson Exp $
6 # Performs SpamAssassin checks on a message before allowing it through to
7 # the main incoming queue.
9 # Uses up: incoming/S<code><bugnum>.nn
10 # Temps: incoming/R.nn
11 # Creates: incoming/I.nn
14 $config_path = '/etc/debbugs';
15 $lib_path = '/usr/lib/debbugs';
17 require "$config_path/config";
18 require "$lib_path/errorlib";
19 $ENV{PATH} = $lib_path . ':' . $ENV{PATH};
21 exit unless $gSpamScan;
23 chdir $gSpoolDir or die "chdir spool: $!\n";
26 use Mail::SpamAssassin;
27 use Mail::SpamAssassin::NoMailAudit;
32 &filelock('incoming-spamscan');
36 my $user_prefs = "$ENV{HOME}/.spamassassin/user_prefs";
39 $user_prefs_time = (stat $user_prefs)[9];
42 my $spam = Mail::SpamAssassin->new({
44 site_rules_filename => $gSpamRulesDir,
45 userprefs_filename => $user_prefs,
46 local_tests_only => ($gSpamLocalTestsOnly || 0),
47 debug => ($ENV{DEBBUGS_SPAM_DEBUG} || 0),
49 $spam->compile_now(1); # use all user preferences
56 sub header_or_empty ($$) {
57 my ($mail, $hdr) = @_;
58 my $value = $mail->get_header($hdr);
67 if (-f 'spamscan-stop') {
68 print "spamscan-stop file created\n";
72 if ($user_prefs_time != (stat $user_prefs)[9]) {
73 # stop and wait to be re-invoked from cron
79 opendir DIR, 'incoming' or die "opendir incoming: $!";
80 while (defined($_ = readdir DIR)) {
81 push @ids, $1 if /^S(.*)/;
89 unless (rename "incoming/S$id", "incoming/R$id") {
91 die "$id already fudged once! $!\n";
97 print "[$nf] $id scanning ...\n" or die "print log: $!";
99 open MESSAGE, "< incoming/R$id" or die "open incoming/R$id: $!";
101 # Kludge to work around Received: then From_ weirdness in receive;
102 # remove when receive is fixed? We may continue to need it for
103 # reprocessing old messages.
104 $textarray[0] = <MESSAGE>;
105 if ($textarray[0] =~ /^Received:/) {
106 my $maybefrom = <MESSAGE>;
107 if ($maybefrom =~ /^From /) {
108 $textarray[1] = $textarray[0];
109 $textarray[0] = $maybefrom;
111 $textarray[1] = $maybefrom;
114 push @textarray, <MESSAGE>;
116 my $mail = Mail::SpamAssassin::NoMailAudit->new(data => \@textarray);
119 print " From: ", header_or_empty($mail, 'From'), "\n";
120 print " Subject: ", header_or_empty($mail, 'Subject'), "\n";
121 print " Date: ", header_or_empty($mail, 'Date'), "\n";
122 print " Message-Id: ", header_or_empty($mail, 'Message-Id'), "\n";
123 my $status = $spam->check($mail);
124 $status->rewrite_mail();
126 if ($status->is_spam()) {
127 $mail->accept($gSpamMailbox);
128 unlink "incoming/R$id" or warn "unlink incoming/R$id: $!";
129 printf " spam %.1f/%.1f\n",
130 $status->get_hits(), $status->get_required_hits()
131 or die "printf log: $!";
133 open OUT, "> incoming/I$id" or die "open incoming/I$id: $!";
134 my @headers = $mail->get_all_headers();
135 if ($headers[0] =~ /^From /) {
136 my $from = $headers[0];
137 $headers[0] = $headers[1];
140 print OUT join '', @headers or die "print incoming/I$id: $!";
141 print OUT "\n" or die "print incoming/I$id: $!";
142 print OUT @{$mail->get_body()} or die "print incoming/I$id: $!";
143 close OUT or die "close incoming/I$id: $!";
144 unlink "incoming/R$id" or warn "unlink incoming/R$id: $!";
145 printf " ok %.1f/%.1f\n",
146 $status->get_hits(), $status->get_required_hits()
147 or die "printf log: $!";