v2.3.11: update sanitizeHost middleware

index.js

@@ -483,12 +483,23 @@ Greenlock.create = function (gl) {
 
   //var SERVERNAME_RE = /^[a-z0-9\.\-_]+$/;
   var SERVERNAME_G = /[^a-z0-9\.\-_]/;
-  gl.middleware.sanitizeHost = function (req, res, next) {
+  gl.middleware.sanitizeHost = function (app) {
+    return function (req, res, next) {
+      function realNext() {
+        if ('function' === typeof app) {
+          app(req, res);
+        } else if ('function' === typeof next) {
+          next();
+        } else {
+          res.statusCode = 500;
+          res.end("Error: no middleware assigned");
+        }
+      }
       // Get the host:port combo, if it exists
       var host = (req.headers.host||'').split(':');
 
       // if not, move along
-    if (!host[0]) { next(req, res); return; }
+      if (!host[0]) { realNext(); return; }
 
       // if so, remove non-allowed characters
       var safehost = host[0].replace(SERVERNAME_G, '');
@@ -507,7 +518,8 @@ Greenlock.create = function (gl) {
       }
 
       // carry on
-    next(req, res);
+      realNext();
+    };
   };
 
   return gl;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "greenlock",
-  "version": "2.3.10",
+  "version": "2.3.11",
   "description": "Let's Encrypt for node.js on npm",
   "main": "index.js",
   "files": [