repobrowse: src/ endpoint requires a tip to be specified

Implying a tip would make for ambiguous URLs and ruin
caching, so try to get everybody to hit the same URL.
This also simplifies some of our other code since
the tip is always in the request.

2 files changed, 6 insertions, 8 deletions

diff --git a/lib/PublicInbox/RepoBase.pm b/lib/PublicInbox/RepoBase.pm
index e600b1df..5d38579c 100644
--- a/lib/PublicInbox/RepoBase.pm
+++ b/lib/PublicInbox/RepoBase.pm
@@ -86,7 +86,7 @@ sub r {
                 my $env = $req->{env};
                 my $base = PublicInbox::Repobrowse::base_url($env);
                 my ($redir) = @extra;
-                if ($redir =~ m!\A\.\./!) { # relative redirect
+                if (index($redir, '/') != 0) { # relative redirect
                         my @orig = split(m!/+!, $env->{PATH_INFO});
                         my @dest = split(m!/+!, $redir);
 
@@ -98,7 +98,7 @@ sub r {
                         $end = pop @dest if $dest[-1] =~ /\A[#\?]/;
                         $redir = $base . join('/', @orig, @dest) . $end;
                 } else {
-                        $redir = $base . '/' . $redir;
+                        $redir = $base . $redir;
                 }
                 push @h, qw(Content-Type text/plain Location), $redir;
 
diff --git a/lib/PublicInbox/RepoGitSrc.pm b/lib/PublicInbox/RepoGitSrc.pm
index de068940..38108442 100644
--- a/lib/PublicInbox/RepoGitSrc.pm
+++ b/lib/PublicInbox/RepoGitSrc.pm
@@ -23,7 +23,7 @@ sub call_git_src {
         my ($self, $req) = @_;
         my $repo = $req->{-repo};
         my $git = $repo->{git};
-        my $tip = $req->{tip} || $req->{repo}->tip;
+        my $tip = $req->{tip} or return $self->r(302, $req, $repo->tip);
         sub {
                 my ($res) = @_;
                 $git->check_async($req->{env}, "$tip:$req->{expath}", sub {
@@ -57,7 +57,7 @@ sub cur_path {
         my ($req) = @_;
         my @ex = @{$req->{extra}} or return '<b>root</b>';
         my $s;
-        my $tip = $req->{tip} || $req->{repo}->tip;
+        my $tip = $req->{tip};
         my $rel = $req->{relcmd};
         # avoid relative paths, here, we don't want to propagate
         # trailing-slash URLs although we tolerate them
@@ -81,7 +81,7 @@ sub git_blob_sed ($$$) {
         my @lines;
         my $buf = '';
         my $rel = $req->{relcmd};
-        my $tip = $req->{tip} || $req->{repo}->tip;
+        my $tip = $req->{tip};
         my $raw = join('/', "${rel}raw", $tip, @{$req->{extra}});
         $raw = PublicInbox::Hval->utf8($raw)->as_path;
         my $t = cur_path($req);
@@ -220,10 +220,8 @@ sub git_tree_show {
         $req->{thtml} .= "\npath: $t\n\n<b>mode\tsize\tname</b>\n";
         if (defined(my $last = $req->{extra}->[-1])) {
                 $pfx = PublicInbox::Hval->utf8($last)->as_path;
-        } elsif (defined(my $tip = $req->{tip})) {
-                $pfx = $tip;
         } else {
-                $pfx = 'src/' . $req->{-repo}->tip;
+                $pfx = 'src/' . $req->{tip};
         }
         $req->{tpfx} = $pfx;
         my $env = $req->{env};