Instead of only working with superdomains that have two parts, consume each part of the request and compare against valid superdomains. This lets you run a site with arbitrary lengths for the domains, e.g. mypads.etherpad.mysite.com.

1 files changed, 6 insertions, 3 deletions

diff --git a/etherpad/src/etherpad/pro/pro_utils.js b/etherpad/src/etherpad/pro/pro_utils.js
index 5e8b801..3c5a7c9 100644
--- a/etherpad/src/etherpad/pro/pro_utils.js
+++ b/etherpad/src/etherpad/pro/pro_utils.js
@@ -47,11 +47,14 @@ function getProRequestSubdomain() {
 
 function getRequestSuperdomain() {
   var parts = request.domain.split('.');
-  parts.reverse();
-  if (parts[0] == ".") {
+  while (parts.length > 0) {
+    var domain = parts.join('.');
+    if (SUPERDOMAINS[domain]) {
+      return domain;
+    }
     parts.shift();
   }
-  return [parts[1], parts[0]].join('.');
+  return false;
 }
 
 function isProDomainRequest() {