imap: support LIST command

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

diff --git a/lib/PublicInbox/IMAP.pm b/lib/PublicInbox/IMAP.pm
index 7745d9f96f788962c14603bb520101a601a93f8b..ca9a0ea7d420feb3dcaa562d84fb2f8f2efe72c7 100644 (file)
--- a/lib/PublicInbox/IMAP.pm
+++ b/lib/PublicInbox/IMAP.pm
@@ -336,6 +336,20 @@ sub cmd_status ($$$;@) {
        "$tag OK Status complete\r\n";
 }
 
+my %patmap = ('*' => '.*', '%' => '[^\.]*');
+sub cmd_list ($$$$) {
+       my ($self, $tag, $refname, $wildcard) = @_;
+       my $l = $self->{imapd}->{inboxlist};
+       if ($refname eq '' && $wildcard eq '') {
+               # request for hierarchy delimiter
+               $l = [ qq[* LIST (\\Noselect) "." ""\r\n] ];
+       } elsif ($refname ne '' || $wildcard ne '*') {
+               $wildcard =~ s!([^a-z0-9_])!$patmap{$1} // "\Q$1"!eig;
+               $l = [ grep(/ \Q$refname\E$wildcard\r\n\z/s, @$l) ];
+       }
+       \(join('', @$l, "$tag OK List 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";