From 0b2540d3b69f9e4a89e53dfdfaf4cd0494ad73bb Mon Sep 17 00:00:00 2001
From: David Hacker <dmhacker@protonmail.com>
Date: Wed, 4 Mar 2020 10:15:13 -0800
Subject: [PATCH] Allow ALEXA_APPLICATION_ID to be null

---
 index.js | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/index.js b/index.js
index 59332dd..705e4aa 100644
--- a/index.js
+++ b/index.js
@@ -335,13 +335,15 @@ function ping_on_blocking_download(id, callback) {
 }
 
 app.pre = function(req, res, type) {
-  if (req.data.session !== undefined) {
-    if (req.data.session.application.applicationId !== process.env.ALEXA_APPLICATION_ID) {
-      res.fail("Invalid application");
-    }
-  } else {
-    if (req.applicationId !== process.env.ALEXA_APPLICATION_ID) {
-      res.fail("Invalid application");
+  if (process.env.ALEXA_APPLICATION_ID != null) {
+    if (req.data.session !== undefined) {
+      if (req.data.session.application.applicationId !== process.env.ALEXA_APPLICATION_ID) {
+        res.fail("Invalid application");
+      }
+    } else {
+      if (req.applicationId !== process.env.ALEXA_APPLICATION_ID) {
+        res.fail("Invalid application");
+      }
     }
   }
 };