Add opensearch support to server

Author: zquestz

README.md

@@ -388,8 +388,8 @@ s is released under the MIT license.
 [ReportCard-Image]: https://goreportcard.com/badge/github.com/zquestz/s
 [Build-Status-URL]: https://app.travis-ci.com/github/zquestz/s
 [Build-Status-Image]: https://app.travis-ci.com/zquestz/s.svg?branch=master
-[Release-URL]: https://github.com/zquestz/s/releases/tag/v0.7.2
-[Release-Image]: https://img.shields.io/badge/release-v0.7.2-1eb0fc.svg
+[Release-URL]: https://github.com/zquestz/s/releases/tag/v0.7.3
+[Release-Image]: https://img.shields.io/badge/release-v0.7.3-1eb0fc.svg
 [Snap-Build-URL]: https://github.com/zquestz/s/actions/workflows/test-snap-builds.yml
 [Snap-Build-Image]: https://github.com/zquestz/s/actions/workflows/test-snap-builds.yml/badge.svg
 [Snap-Image]: https://snapcraft.io/s-search/badge.svg

cmd/search.go

@@ -15,7 +15,7 @@ import (
 
 const (
 	appName         = "s"
-	version         = "0.7.2"
+	version         = "0.7.3"
 	defaultPort     = 8080
 	defaultProvider = "presearch"
 )

server/favicon.go

@@ -37,6 +37,7 @@ func setupFaviconHandlers() {
 	http.Handle("/browserconfig.xml", gziphandler.GzipHandler(http.HandlerFunc(browserconfigXML)))
 	http.Handle("/manifest.json", gziphandler.GzipHandler(http.HandlerFunc(manifestJSON)))
 	http.Handle("/safari-pinned-tab.svg", gziphandler.GzipHandler(http.HandlerFunc(safariPinnedTabSvg)))
+	http.Handle("/opensearch.xml", gziphandler.GzipHandler(http.HandlerFunc(opensearchXML)))
 }
 
 func setExpiresHeader(w http.ResponseWriter) {
@@ -1716,6 +1717,21 @@ func browserconfigXML(w http.ResponseWriter, r *http.Request) {
 `))
 }
 
+func opensearchXML(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/opensearchdescription+xml")
+	setExpiresHeader(w)
+
+	w.Write([]byte(`<?xml version="1.0" encoding="utf-8"?>
+<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
+  <ShortName>s</ShortName>
+  <Description>Multi-provider web search portal supporting 50+ search engines including Google, GitHub, and Stack Overflow</Description>
+  <InputEncoding>UTF-8</InputEncoding>
+  <Image width="32" height="32" type="image/png">/favicon-32x32.png</Image>
+  <Url type="text/html" method="get" template="/search?q={searchTerms}"/>
+</OpenSearchDescription>
+`))
+}
+
 func manifestJSON(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/json")
 	setExpiresHeader(w)

server/template.go

@@ -28,6 +28,7 @@ var (
     <link rel="icon" type="image/png" href="/favicon-16x16.png" sizes="16x16">
     <link rel="manifest" href="/manifest.json">
     <link rel="mask-icon" href="/safari-pinned-tab.svg" color="#272f32">
+    <link rel="search" type="application/opensearchdescription+xml" title="s" href="/opensearch.xml">
     <meta name="apple-mobile-web-app-title" content="s">
     <meta name="application-name" content="s">
     <meta name="msapplication-TileColor" content="#272f32">