-sub parse_references ($$$) {
- my ($smsg, $mid0, $mids) = @_;
- my $mime = $smsg->{mime};
- my $hdr = $mime->header_obj;
- my $refs = references($hdr);
- push(@$refs, @$mids) if scalar(@$mids) > 1;
- return $refs if scalar(@$refs) == 0;
-
- # prevent circular references here:
- my %seen = ( $mid0 => 1 );
- my @keep;
- foreach my $ref (@$refs) {
- if (length($ref) > PublicInbox::MID::MAX_MID_SIZE) {
- warn "References: <$ref> too long, ignoring\n";
- next;
- }
- next if $seen{$ref}++;
- push @keep, $ref;
- }
- $smsg->{references} = '<'.join('> <', @keep).'>' if @keep;
- \@keep;
-}
-