From a74453a5458f3b3655ddb24547b11fa7b36a5988 Mon Sep 17 00:00:00 2001
From: Chris Park <chris.park@aligent.com.au>
Date: Fri, 6 Oct 2023 09:10:58 +1030
Subject: [PATCH] DO-1484: make user-agent visible for easier debugging

---
 packages/prerender-fargate/lib/prerender/server.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/packages/prerender-fargate/lib/prerender/server.js b/packages/prerender-fargate/lib/prerender/server.js
index a4913bf2..463ee56f 100644
--- a/packages/prerender-fargate/lib/prerender/server.js
+++ b/packages/prerender-fargate/lib/prerender/server.js
@@ -12,8 +12,12 @@ const server = prerender({
 
 server.use({
     requestReceived: (req, res, next) => {
+        console.log(`${new Date().toISOString()} User-Agent: "${req.get('user-agent')}" ${req.prerender.reqId} ${req.prerender.url}`);
         let auth = req.headers['x-prerender-token'];
-        if (!auth) return res.send(401);
+        if (!auth) {
+            console.log(`${new Date().toISOString()} "${req.get('user-agent')}" ${req.prerender.reqId} Authentication header not found.`);
+            return res.send(401);
+        }
 
         // compare credentials in header to list of allowed credentials
         const tokenAllowList = process.env.TOKEN_LIST.toString().split(',');
@@ -24,7 +28,10 @@ server.use({
 
             if (authenticated) break;
         }
-        if (!authenticated) return res.send(401);
+        if (!authenticated) {
+            console.log(`${new Date().toISOString()} "${req.get('user-agent')}" ${req.prerender.reqId} Authentication Failed.`);
+            return res.send(401);
+        }
 
         return next();
     },