mda: hoist out List-ID handling and reuse in -learn

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

diff --git a/lib/PublicInbox/MDA.pm b/lib/PublicInbox/MDA.pm
index 9cafda13997f68229d8f6f4f0b1dc34ce4bc3b93..ce2c870f89edcd353d263d1c8fed28a0d08ede1f 100644 (file)
--- a/lib/PublicInbox/MDA.pm
+++ b/lib/PublicInbox/MDA.pm
@@ -83,4 +83,19 @@ sub set_list_headers {
        }
 }
 
+# TODO: deal with multiple List-ID headers?
+sub inbox_for_list_id ($$) {
+       my ($klass, $config, $simple) = @_;
+
+       # newer Email::Simple allows header_raw, as does Email::MIME:
+       my $list_id = $simple->can('header_raw') ?
+                       $simple->header_raw('List-Id') :
+                       $simple->header('List-Id');
+       my $ibx;
+       if (defined $list_id && $list_id =~ /<[ \t]*(.+)?[ \t]*>/) {
+               $ibx = $config->lookup_list_id($1);
+       }
+       $ibx;
+}
+
 1;