tailscale/client/web/api.go
Sonia Appasamy 077bbb8403 client/web: add csrf protection to web client api
Adds csrf protection and hooks up an initial POST request from
the React web client.

Updates tailscale/corp#13775

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
2023-08-21 15:02:02 -04:00

42 lines
927 B
Go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package web
import (
"net/http"
"strings"
"github.com/gorilla/csrf"
"tailscale.com/util/httpm"
)
type api struct {
s *Server
}
// ServeHTTP serves requests for the web client api.
// It should only be called by Server.ServeHTTP, via Server.apiHandler,
// which protects the handler using gorilla csrf.
func (a *api) ServeHTTP(w http.ResponseWriter, r *http.Request) {
w.Header().Set("X-CSRF-Token", csrf.Token(r))
user, err := authorize(w, r)
if err != nil {
return
}
path := strings.TrimPrefix(r.URL.Path, "/api")
switch path {
case "/data":
switch r.Method {
case httpm.GET:
a.s.serveGetNodeDataJSON(w, r, user)
case httpm.POST:
a.s.servePostNodeUpdate(w, r)
default:
http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
}
return
}
http.Error(w, "invalid endpoint", http.StatusNotFound)
}