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// Package web contains the files for the Northstar website.
package web
import (
"embed"
"net/http"
"net/url"
"strings"
"time"
)
//go:embed index.html assets/* script/* style/*
var Assets embed.FS
// TODO: compress assets
// TODO: probably better to put website in a separate repo
var Redirects = map[string]string{
"/github": "https://github.com/R2Northstar",
"/discord": "https://discord.gg/northstar",
"/wiki": "https://r2northstar.gitbook.io/",
"/thunderstore": "https://northstar.thunderstore.io",
}
// TODO: probably better to make redirects configurable via a JSON file or something
func ServeHTTP(w http.ResponseWriter, r *http.Request) {
// - cache publicly, allow reusing responses for multiple users
// - allow reusing responses if server is down
// - cache for up to 1800s
// - check for updates after 900s
w.Header().Set("Cache-Control", "public, max-age=1800, stale-while-revalidate=900")
w.Header().Set("Expires", time.Now().UTC().Add(time.Second*1800).Format(http.TimeFormat))
// check redirects first
if u, ok := Redirects[strings.TrimSuffix(r.URL.Path, "/")]; ok {
http.Redirect(w, r, u, http.StatusTemporaryRedirect)
return
}
// rewrite /favicon.ico -> /assets/favicon.ico
if r.URL.Path == "/favicon.ico" {
r2 := new(http.Request)
*r2 = *r
r2.URL = new(url.URL)
*r2.URL = *r.URL
r2.URL.Path = "/assets/favicon.ico"
r2.URL.RawPath = r2.URL.Path
r = r2
}
// this handles range requests, etags, time, etc
http.FileServer(http.FS(Assets)).ServeHTTP(w, r)
}
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