mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-29 21:15:39 +00:00
45 lines
1.0 KiB
Go
45 lines
1.0 KiB
Go
// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// The tshello server demonstrates how to use Tailscale as a library.
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"html"
|
|
"log"
|
|
"net/http"
|
|
"strings"
|
|
|
|
"tailscale.com/client/tailscale"
|
|
"tailscale.com/tsnet"
|
|
)
|
|
|
|
func main() {
|
|
s := new(tsnet.Server)
|
|
ln, err := s.Listen("tcp", ":80")
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
log.Fatal(http.Serve(ln, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
who, err := tailscale.WhoIs(r.Context(), r.RemoteAddr)
|
|
if err != nil {
|
|
http.Error(w, err.Error(), 500)
|
|
return
|
|
}
|
|
fmt.Fprintf(w, "<html><body><h1>Hello, world!</h1>\n")
|
|
fmt.Fprintf(w, "<p>You are <b>%s</b> from <b>%s</b> (%s)</p>",
|
|
html.EscapeString(who.UserProfile.LoginName),
|
|
html.EscapeString(firstLabel(who.Node.ComputedName)),
|
|
r.RemoteAddr)
|
|
})))
|
|
}
|
|
|
|
func firstLabel(s string) string {
|
|
if i := strings.Index(s, "."); i != -1 {
|
|
return s[:i]
|
|
}
|
|
return s
|
|
}
|