mda: skip MIME parsing if spam

[public-inbox.git] / script / public-inbox-mda

diff --git a/script/public-inbox-mda b/script/public-inbox-mda
index 4e6e04e2174ebd9ab64d815df691c68294bae99f..6935461662e6e900adddfa569d427272df097a24 100755 (executable)
--- a/script/public-inbox-mda
+++ b/script/public-inbox-mda
@@ -5,7 +5,8 @@
 # Mail delivery agent for public-inbox, run from your MTA upon mail delivery
 use strict;
 use warnings;
-my $usage = 'public-inbox-mda < rfc2822_message';
+my $usage = 'public-inbox-mda [OPTIONS] < rfc2822_message';
+my $precheck = grep(/\A--no-precheck\z/, @ARGV) ? 0 : 1;
 my ($ems, $emm);
 
 sub do_exit {
@@ -36,15 +37,25 @@ my $config = PublicInbox::Config->new;
 my $key = 'publicinboxmda.spamcheck';
 my $default = 'PublicInbox::Spamcheck::Spamc';
 my $spamc = PublicInbox::Spamcheck::get($config, $key, $default);
+my $dst;
 my $recipient = $ENV{ORIGINAL_RECIPIENT};
-defined $recipient or die "ORIGINAL_RECIPIENT not defined in ENV\n";
-my $dst = $config->lookup($recipient); # first check
-defined $dst or do_exit(67); # EX_NOUSER 5.1.1 user unknown
-$dst->{mainrepo} or do_exit(67);
+if (defined $recipient) {
+       $dst = $config->lookup($recipient); # first check
+}
+if (!defined $dst) {
+       $dst = PublicInbox::MDA->inbox_for_list_id($config, $simple);
+       if (!defined $dst && !defined $recipient) {
+               die "ORIGINAL_RECIPIENT not defined in ENV\n";
+       }
+       defined $dst or do_exit(67); # EX_NOUSER 5.1.1 user unknown
+}
+$dst->{inboxdir} or do_exit(67);
 $dst = PublicInbox::InboxWritable->new($dst);
 
 # pre-check, MDA has stricter rules than an importer might;
-do_exit(0) unless PublicInbox::MDA->precheck($simple, $dst->{address});
+if ($precheck && !PublicInbox::MDA->precheck($simple, $dst->{address})) {
+       do_exit(0);
+}
 $simple = undef;
 my $spam_ok;
 if ($spamc) {
@@ -60,17 +71,23 @@ if ($spamc) {
        my $fh = $emm->fh;
        read($fh, $str, -s $fh);
 }
+do_exit(0) unless $spam_ok;
 
 my $mime = PublicInbox::MIME->new(\$str);
-do_exit(0) unless $spam_ok;
 
-my $fcfg = $dst->{filter} || '';
-# -mda defaults to the strict base filter
-if ($fcfg eq '') {
-       $dst->{filter} = 'PublicInbox::Filter::Base';
-} elsif ($fcfg eq 'scrub') { # legacy alias, undocumented, remove?
-       $dst->{filter} = 'PublicInbox::Filter::Mirror';
+# -mda defaults to the strict base filter which we won't use anywhere else
+sub mda_filter_adjust ($) {
+       my ($ibx) = @_;
+       my $fcfg = $ibx->{filter} || '';
+       if ($fcfg eq '') {
+               $ibx->{filter} = 'PublicInbox::Filter::Base';
+       } elsif ($fcfg eq 'scrub') { # legacy alias, undocumented, remove?
+               $ibx->{filter} = 'PublicInbox::Filter::Mirror';
+       }
 }
+
+mda_filter_adjust($dst);
+
 my $filter = $dst->filter;
 my $ret = $filter->delivery($mime);
 if (ref($ret) && $ret->isa('Email::MIME')) { # filter altered message