From 3ff4843c8ac7019be100aafc0c5bcca225942bf1 Mon Sep 17 00:00:00 2001
From: Rob Mosher <rob@robmosher.com>
Date: Fri, 27 Sep 2024 04:20:42 -0400
Subject: [PATCH] Add redirect from www to bare domain

---
 .eslintrc.json                                |  1 +
 .../handler-on-viewer-request.js              | 25 +++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 cloudfront-functions/handler-on-viewer-request.js

diff --git a/.eslintrc.json b/.eslintrc.json
index 5a2265f..dc2861a 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -17,6 +17,7 @@
     "plugin:tailwindcss/recommended"
   ],
   "ignorePatterns": [
+    "cloudfront-functions/*",
     ".eslintrc.cjs",
     "dist",
     "tailwind.config.ts"
diff --git a/cloudfront-functions/handler-on-viewer-request.js b/cloudfront-functions/handler-on-viewer-request.js
new file mode 100644
index 0000000..5b84b7b
--- /dev/null
+++ b/cloudfront-functions/handler-on-viewer-request.js
@@ -0,0 +1,25 @@
+// AWS runtime: 'cloudfront-js-2.0'
+// This function is intended to run as part of the 'Viewer Request' event in CloudFront, where it
+// checks and redirects requests from 'www.whoisthecutest.com' to 'whoisthecutest.com'.
+
+function handler(event) {
+  var request = event.request;
+  var headers = request.headers;
+
+  var bareDomain = 'whoisthecutest.com';
+
+  if (headers.host && headers.host.value === 'www.' + bareDomain) {
+    return {
+      statusCode: 308,
+      statusDescription: 'Permanent Redirect',
+      headers: {
+        // Redirects to the bare domain without preserving the path (request.uri).
+        // Since the site is a single-page application, only the base domain is needed for the redirect.
+        location: { value: 'https://' + bareDomain },
+      },
+    };
+  }
+
+  // If the host doesn't match 'www.whoisthecutest.com', proceed without redirection.
+  return request;
+}