imap: implement STATUS command

I'm not sure if there's much use for this command, but it's
part of RFC3501 and works read-only.

diff --git a/lib/PublicInbox/IMAP.pm b/lib/PublicInbox/IMAP.pm
index c8592dc03291f40fe1a921675850e7f4df7006c2..a2d59e5cccca9014e26416820bfdb4aca83b87d7 100644 (file)
--- a/lib/PublicInbox/IMAP.pm
+++ b/lib/PublicInbox/IMAP.pm
@@ -306,6 +306,35 @@ sub uid_fetch_m { # long_response
        1;
 }
 
+sub cmd_status ($$$;@) {
+       my ($self, $tag, $mailbox, @items) = @_;
+       my $ibx = $self->{imapd}->{groups}->{$mailbox} or
+               return "$tag NO Mailbox doesn't exist: $mailbox\r\n";
+       return "$tag BAD no items\r\n" if !scalar(@items);
+       ($items[0] !~ s/\A\(//s || $items[-1] !~ s/\)\z//s) and
+               return "$tag BAD invalid args\r\n";
+
+       my $mm = $ibx->mm;
+       my ($max, @it);
+       for my $it (@items) {
+               $it = uc($it);
+               push @it, $it;
+               if ($it =~ /\A(?:MESSAGES|UNSEEN|RECENT)\z/) {
+                       push(@it, ($max //= $mm->max // 0));
+               } elsif ($it eq 'UIDNEXT') {
+                       push(@it, ($max //= $mm->max // 0) + 1);
+               } elsif ($it eq 'UIDVALIDITY') {
+                       push(@it, $mm->created_at //
+                               return("$tag BAD UIDVALIDITY\r\n"));
+               } else {
+                       return "$tag BAD invalid item\r\n";
+               }
+       }
+       return "$tag BAD no items\r\n" if !@it;
+       "* STATUS $mailbox (".join(' ', @it).")\r\n" .
+       "$tag OK Status complete\r\n";
+}
+
 sub cmd_uid_fetch ($$$;@) {
        my ($self, $tag, $range, @want) = @_;
        my $ibx = $self->{ibx} or return "$tag BAD No mailbox selected\r\n";

diff --git a/t/imapd.t b/t/imapd.t
index b0caa8f17796c1540767f84345ce542486b212a1..7512bb90050d03ed6ee198a4176ff00b3984dac0 100644 (file)
--- a/t/imapd.t
+++ b/t/imapd.t
@@ -81,6 +81,11 @@ ok(!$mic->select('foo') && ($e = $@), 'EXAMINE non-existent');
 like($e, qr/\bNO\b/, 'got a NO on EXAMINE for non-existent');
 ok($mic->select('inbox.i1'), 'SELECT succeeds');
 ok($mic->examine('inbox.i1'), 'EXAMINE succeeds');
+my @raw = $mic->status('inbox.i1', qw(Messages uidnext uidvalidity));
+is(scalar(@raw), 2, 'got status response');
+like($raw[0], qr/\A\*\x20STATUS\x20inbox\.i1\x20
+       \(MESSAGES\x20\d+\x20UIDNEXT\x20\d+\x20UIDVALIDITY\x20\d+\)\r\n/sx);
+like($raw[1], qr/\A\S+ OK /, 'finished status response');
 
 my $ret = $mic->search('all') or BAIL_OUT "SEARCH FAIL $@";
 is_deeply($ret, [ 1 ], 'search all works');