lei_saved_search: fix prefix for IMAP folders w/ slash

We failed to account for IMAP mailboxes containing `/'
characters when creating saved search files for them.

Reported-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Link: https://public-inbox.org/meta/20210915123347.knr4qpaei73tjc5q@meerkat.local/

1 files changed, 6 insertions, 6 deletions

diff --git a/lib/PublicInbox/LeiSavedSearch.pm b/lib/PublicInbox/LeiSavedSearch.pm
index 8ceaaf01..96ff816e 100644
--- a/lib/PublicInbox/LeiSavedSearch.pm
+++ b/lib/PublicInbox/LeiSavedSearch.pm
@@ -39,21 +39,21 @@ sub cfg_dump ($$) {
 
 sub lss_dir_for ($$;$) {
         my ($lei, $dstref, $on_fs) = @_;
-        my @n;
+        my $pfx;
         if ($$dstref =~ m,\Aimaps?://,i) { # already canonicalized
                 require PublicInbox::URIimap;
                 my $uri = PublicInbox::URIimap->new($$dstref)->canonical;
                 $$dstref = $$uri;
-                @n = ($uri->mailbox);
+                $pfx = $uri->mailbox;
         } else {
                 # can't use Cwd::abs_path since dirname($$dstref) may not exist
                 $$dstref = $lei->rel2abs($$dstref);
                 $$dstref =~ tr!/!/!s;
-                @n = ($$dstref =~ m{([^/]+)/*\z}); # basename
+                $pfx = $$dstref;
         }
-        push @n, sha256_hex($$dstref);
+        ($pfx) = ($pfx =~ m{([^/]+)/*\z}); # basename
         my $lss_dir = $lei->share_path . '/saved-searches/';
-        my $d = $lss_dir . join('-', @n);
+        my $d = "$lss_dir$pfx-".sha256_hex($$dstref);
 
         # fall-back to looking up by st_ino + st_dev in case we're in
         # a symlinked or bind-mounted path
@@ -61,7 +61,7 @@ sub lss_dir_for ($$;$) {
                 my @cur = stat(_);
                 my $want = pack('dd', @cur[1,0]); # st_ino + st_dev
                 my ($c, $o, @st);
-                for my $g ("$n[0]-*", '*') {
+                for my $g ("$pfx-*", '*') {
                         my @maybe = glob("$lss_dir$g/lei.saved-search");
                         for my $f (@maybe) {
                                 $c = cfg_dump($lei, $f) // next;