Bug 1399713 - ensure existing production redirects work in a cloud hosted environment

1 files changed, 71 insertions, 0 deletions

diff --git a/Bugzilla/ModPerl/Hostage.pm b/Bugzilla/ModPerl/Hostage.pm
new file mode 100644
index 000000000..a3bdfac58
--- /dev/null
+++ b/Bugzilla/ModPerl/Hostage.pm
@@ -0,0 +1,71 @@
+package Bugzilla::ModPerl::Hostage;
+use 5.10.1;
+use strict;
+use warnings;
+
+use Apache2::Const qw(:common); ## no critic (Freenode::ModPerl)
+
+sub _attachment_root {
+    my ($base) = @_;
+    return undef unless $base;
+    return $base =~ m{^https?://(?:bug)?\%bugid\%\.([a-zA-Z\.-]+)}
+        ? $1
+        : undef;
+}
+
+sub _attachment_host_regex {
+    my ($base) = @_;
+    return undef unless $base;
+    my $val   = $base;
+    $val =~ s{^https?://}{}s;
+    $val =~ s{/$}{}s;
+    my $regex = quotemeta $val;
+    $regex =~ s/\\\%bugid\\\%/\\d+/g;
+    return qr/^$regex$/s;
+}
+
+sub handler {
+    my $r = shift;
+    state $urlbase               = Bugzilla->localconfig->{urlbase};
+    state $urlbase_uri           = URI->new($urlbase);
+    state $urlbase_host          = $urlbase_uri->host;
+    state $urlbase_host_regex    = qr/^bug(\d+)\.\Q$urlbase_host\E$/;
+    state $attachment_base       = Bugzilla->localconfig->{attachment_base};
+    state $attachment_root       = _attachment_root($attachment_base);
+    state $attachment_host_regex = _attachment_host_regex($attachment_base);
+
+    my $hostname  = $r->hostname;
+    return OK if $hostname eq $urlbase_host;
+
+    my $path = $r->uri;
+    return OK if $path eq '/__lbheartbeat__';
+
+    if ($attachment_base && $hostname eq $attachment_root) {
+        $r->headers_out->set(Location => $urlbase);
+        return REDIRECT;
+    }
+    elsif ($attachment_base && $hostname =~ $attachment_host_regex) {
+        if ($path =~ m{^/attachment\.cgi}s) {
+            return OK;
+        } else {
+            my $new_uri = URI->new($r->unparsed_uri);
+            $new_uri->scheme($urlbase_uri->scheme);
+            $new_uri->host($urlbase_host);
+            $r->headers_out->set(Location => $new_uri);
+            return REDIRECT;
+        }
+    }
+    elsif (my ($id) = $hostname =~ $urlbase_host_regex) {
+        my $new_uri = $urlbase_uri->clone;
+        $new_uri->path('/show_bug.cgi');
+        $new_uri->query_form(id => $id);
+        $r->headers_out->set(Location => $new_uri);
+        return REDIRECT;
+    }
+    else {
+        $r->headers_out->set(Location => $urlbase);
+        return REDIRECT;
+    }
+}
+
+1;
\ No newline at end of file