gitweb: Fix actionless dispatch for non-existent objects

When gitweb URL does not provide action explicitly, e.g.

  http://git.example.org/repo.git/branch

dispatch() tries to guess action (view to be used) based on remaining
parameters.  Among others it is based on the type of requested object,
which gave problems when asking for non-existent branch or file (for
example misspelt name).

Now undefined $action from dispatch() should not result in problems.

Signed-off-by: Jakub Narebski <redacted>
Signed-off-by: Junio C Hamano <redacted>

diff --git a/gitweb.perl b/gitweb.perl
index 4ba6554fbdb699ec66050b4682ce90111ad0480c712d607c7ab7df4d2becda26..2bfdcca3b3ffe04d61941d45ebab641bf913f978bd1f21690c76cdf7b3c76e99 100755 (executable)
--- a/gitweb.perl
+++ b/gitweb.perl
@@ -1124,8 +1124,10 @@ sub dispatch {
        if (!defined $action) {
                if (defined $hash) {
                        $action = git_get_type($hash);
+                       $action or die_error(404, "Object does not exist");
                } elsif (defined $hash_base && defined $file_name) {
                        $action = git_get_type("$hash_base:$file_name");
+                       $action or die_error(404, "File or directory does not exist");
                } elsif (defined $project) {
                        $action = 'summary';
                } else {
@@ -2392,7 +2394,7 @@ sub get_feed_info {
        return unless (defined $project);
        # some views should link to OPML, or to generic project feed,
        # or don't have specific feed yet (so they should use generic)
-       return if ($action =~ /^(?:tags|heads|forks|tag|search)$/x);
+       return if (!$action || $action =~ /^(?:tags|heads|forks|tag|search)$/x);
 
        my $branch;
        # branches refs uses 'refs/heads/' prefix (fullname) to differentiate