From f10230dfc5d01f72c1aac7b2a69c2e7b2fa97959 Mon Sep 17 00:00:00 2001
From: Luke Childs <lukechilds123@gmail.com>
Date: Sat, 21 Jan 2023 10:40:06 +0000
Subject: [PATCH] Add edge cacheing

---
 controllers/about.js   | 12 ++++++++----
 controllers/listing.js | 16 ++++++++++------
 controllers/node.js    |  2 ++
 3 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/controllers/about.js b/controllers/about.js
index a7235af..0140973 100644
--- a/controllers/about.js
+++ b/controllers/about.js
@@ -1,4 +1,8 @@
-module.exports = (req, res) => res.render('about.html', {
-	bodyClass: 'about',
-	pageTitle: 'About'
-});
+module.exports = (req, res) => {
+	const ONE_MONTH_IN_SECONDS = 60 * 60 * 24 * 30;
+	res.setHeader('Cache-Control', `s-maxage=${ONE_MONTH_IN_SECONDS}, stale-while-revalidate`);
+	res.render('about.html', {
+		bodyClass: 'about',
+		pageTitle: 'About'
+	})
+};
diff --git a/controllers/listing.js b/controllers/listing.js
index 6fb8945..7727ec7 100644
--- a/controllers/listing.js
+++ b/controllers/listing.js
@@ -17,12 +17,16 @@ module.exports = (req, res, next) => {
 	}
 
 	tor.listNodes(query)
-		.then(nodes => res.render('listing.html', {
-			pageTitle: req.query.s ? `Search: ${req.query.s}` : false,
-			title,
-			nodes,
-			numOfNodes: query.limit
-		}))
+		.then(nodes => {
+			const ONE_HOUR_IN_SECONDS = 60 * 60;
+			res.setHeader('Cache-Control', `s-maxage=${ONE_HOUR_IN_SECONDS}, stale-while-revalidate`);
+			res.render('listing.html', {
+				pageTitle: req.query.s ? `Search: ${req.query.s}` : false,
+				title,
+				nodes,
+				numOfNodes: query.limit
+			})
+		})	
 		.catch(err => {
 			if (err.statusCode === 400 && req.query.s) {
 				err.statusMessage = 'Bad Search Query';
diff --git a/controllers/node.js b/controllers/node.js
index de24e4b..74e8d81 100644
--- a/controllers/node.js
+++ b/controllers/node.js
@@ -15,6 +15,8 @@ module.exports = (req, res, next) => {
 				throw err;
 			}
 
+			const ONE_HOUR_IN_SECONDS = 60 * 60;
+			res.setHeader('Cache-Control', `s-maxage=${ONE_HOUR_IN_SECONDS}, stale-while-revalidate`);
 			res.render('node.html', {
 				pageTitle: `${data[0].type}: ${data[0].nickname}`,
 				node: data[0],