From d46ddbe2b4675fcad187429766d5e53f4a36c66b Mon Sep 17 00:00:00 2001
From: Daniel Roe <daniel@roe.dev>
Date: Sat, 14 Jan 2023 23:51:12 +0000
Subject: [PATCH] feat: implement social previews by redirecting to origin
 server (#1144)

---
 plugins/social.server.ts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 plugins/social.server.ts

diff --git a/plugins/social.server.ts b/plugins/social.server.ts
new file mode 100644
index 00000000..5c215b96
--- /dev/null
+++ b/plugins/social.server.ts
@@ -0,0 +1,16 @@
+import { sendRedirect } from 'h3'
+
+export default defineNuxtPlugin(async (nuxtApp) => {
+  const route = useRoute()
+  if (!route.params.server)
+    return
+
+  const req = nuxtApp.ssrContext!.event.node.req
+  const userAgent = req.headers['user-agent']!
+  if (!userAgent)
+    return
+
+  const isOpenGraphCrawler = /twitterbot|discordbot|facebookexternalhit|googlebot|msnbot|baidu|ahrefsbot|duckduckgo/i.test(userAgent)
+  if (isOpenGraphCrawler)
+    await sendRedirect(nuxtApp.ssrContext!.event, `https:/${route.path}`, 301)
+})