mda: support multiple List-ID matches

[public-inbox.git] / lib / PublicInbox / MDA.pm

diff --git a/lib/PublicInbox/MDA.pm b/lib/PublicInbox/MDA.pm
index 637404eb2e553712b62df8db85ce7f159a56d73a..b0dfac4564cfe12425a1ece5d31caa06f63069d4 100644 (file)
--- a/lib/PublicInbox/MDA.pm
+++ b/lib/PublicInbox/MDA.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2013-2018 all contributors <meta@public-inbox.org>
+# Copyright (C) 2013-2019 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 #
 # For the -mda script (mail delivery agent)
@@ -83,4 +83,25 @@ sub set_list_headers {
        }
 }
 
+sub inboxes_for_list_id ($$) {
+       my ($klass, $config, $simple) = @_;
+
+       # newer Email::Simple allows header_raw, as does Email::MIME:
+       my @list_ids = $simple->can('header_raw') ?
+                       $simple->header_raw('List-Id') :
+                       $simple->header('List-Id');
+       my @dests;
+       for my $list_id (@list_ids) {
+               $list_id =~ /<[ \t]*(.+)?[ \t]*>/ or next;
+               if (my $ibx = $config->lookup_list_id($1)) {
+                       push @dests, $ibx;
+               }
+       }
+       if (scalar(@list_ids) > 1) {
+               warn "W: multiple List-IDs in message:\n";
+               warn "W: List-ID: $_\n" for @list_ids
+       }
+       \@dests;
+}
+
 1;