From 123e490311b76e41ccd6781adf1cde135f84de9a Mon Sep 17 00:00:00 2001
From: Soni L <EnderMoneyMod@gmail.com>
Date: Wed, 28 Dec 2022 19:53:59 -0300
Subject: [PATCH] Support OpenSearch (closes #7058) (#9427)

Co-authored-by: Chaos <chaoticryptidz@owo.monster>
---
 .../src/server/web/ClientServerService.ts     | 19 +++++++++++++++++++
 .../backend/src/server/web/views/base.pug     |  1 +
 2 files changed, 20 insertions(+)

diff --git a/packages/backend/src/server/web/ClientServerService.ts b/packages/backend/src/server/web/ClientServerService.ts
index 727bbc9d7..2b3f0ce0f 100644
--- a/packages/backend/src/server/web/ClientServerService.ts
+++ b/packages/backend/src/server/web/ClientServerService.ts
@@ -304,6 +304,24 @@ export class ClientServerService {
 			return await reply.sendFile('/robots.txt', staticAssets);
 		});
 
+		// OpenSearch XML
+		fastify.get('/opensearch.xml', async (request, reply) => {
+			const meta = await this.metaService.fetch();
+
+			const name = meta.name || "Misskey";
+			let content = "";
+			content += `<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/" xmlns:moz="http://www.mozilla.org/2006/browser/search/">`;
+			content += `<ShortName>${name} Search</ShortName>`;
+			content += `<Description>${name} Search</Description>`;
+			content += `<InputEncoding>UTF-8</InputEncoding>`;
+			content += `<Image width="16" height="16" type="image/x-icon">${this.config.url}/favicon.ico</Image>`;
+			content += `<Url type="text/html" template="${this.config.url}/search?q={searchTerms}"/>`;
+			content += `</OpenSearchDescription>`;
+
+			reply.header('Content-Type', 'application/opensearchdescription+xml');
+			return await reply.send(content);
+		});
+
 		//#endregion
 
 		const renderBase = async (reply: FastifyReply) => {
@@ -313,6 +331,7 @@ export class ClientServerService {
 				img: meta.bannerUrl,
 				title: meta.name ?? 'Misskey',
 				instanceName: meta.name ?? 'Misskey',
+				url: this.config.url,
 				desc: meta.description,
 				icon: meta.iconUrl,
 				themeColor: meta.themeColor,
diff --git a/packages/backend/src/server/web/views/base.pug b/packages/backend/src/server/web/views/base.pug
index 0c3c5c9b7..b472cff89 100644
--- a/packages/backend/src/server/web/views/base.pug
+++ b/packages/backend/src/server/web/views/base.pug
@@ -31,6 +31,7 @@ html
 		link(rel='icon' href= icon || '/favicon.ico')
 		link(rel='apple-touch-icon' href= icon || '/apple-touch-icon.png')
 		link(rel='manifest' href='/manifest.json')
+		link(rel='search' type='application/opensearchdescription+xml' title=((title || "Misskey") + " Search") href=`${url}/opensearch.xml`)
 		link(rel='prefetch' href='https://xn--931a.moe/assets/info.jpg')
 		link(rel='prefetch' href='https://xn--931a.moe/assets/not-found.jpg')
 		link(rel='prefetch' href='https://xn--931a.moe/assets/error.jpg')