address: explicitly reject local-only addresses

Apparently, neither our previous address parsing code nor
Email::Address::XS recognizes local, username-only addresses
in the form of <username> (without "@host").  Without
this change, Email::Address::XS->address would return
"undef", so we need to filter it out via "grep { defined }"

It seems the cases where users email each other on the same
machine is small and public-inbox won't be able to index
addresses for those cases...  Oh well :/

2 files changed, 11 insertions, 3 deletions

diff --git a/lib/PublicInbox/Address.pm b/lib/PublicInbox/Address.pm
index 433b36eb..c23a5d62 100644
--- a/lib/PublicInbox/Address.pm
+++ b/lib/PublicInbox/Address.pm
@@ -4,12 +4,15 @@ package PublicInbox::Address;
 use strict;
 use warnings;
 
-sub xs_emails { map { $_->address() } parse_email_addresses($_[0]) }
+sub xs_emails {
+        grep { defined } map { $_->address() } parse_email_addresses($_[0])
+}
 
 sub xs_names {
-        map {
+        grep { defined } map {
                 my $n = $_->name;
-                $n = $_->user if $n eq $_->address;
+                my $addr = $_->address;
+                $n = $_->user if defined($addr) && $n eq $addr;
                 $n;
         } parse_email_addresses($_[0]);
 }
diff --git a/t/address.t b/t/address.t
index e7c0d6a8..1f20702a 100644
--- a/t/address.t
+++ b/t/address.t
@@ -38,6 +38,11 @@ sub test_pkg {
 
         @names = $names->('"Quote Unneeded" <user@example.com>');
         is_deeply(['Quote Unneeded'], \@names, 'extra quotes dropped');
+
+        my @emails = $emails->('Local User <user>');
+        is_deeply([], \@emails , 'no address for local address');
+        @names = $emails->('Local User <user>');
+        is_deeply([], \@names, 'no address, no name');
 }
 
 test_pkg('PublicInbox::Address');