// Copyright (C) 2016 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.

package main

import (
	"testing"

	"github.com/syncthing/syncthing/lib/config"
	"github.com/syncthing/syncthing/lib/protocol"
	"github.com/thejerf/suture"
)

func TestCSRFToken(t *testing.T) {
	t1 := newCsrfToken()
	t2 := newCsrfToken()

	t3 := newCsrfToken()
	if !validCsrfToken(t3) {
		t.Fatal("t3 should be valid")
	}

	for i := 0; i < 250; i++ {
		if i%5 == 0 {
			// t1 and t2 should remain valid by virtue of us checking them now
			// and then.
			if !validCsrfToken(t1) {
				t.Fatal("t1 should be valid at iteration", i)
			}
			if !validCsrfToken(t2) {
				t.Fatal("t2 should be valid at iteration", i)
			}
		}

		// The newly generated token is always valid
		t4 := newCsrfToken()
		if !validCsrfToken(t4) {
			t.Fatal("t4 should be valid at iteration", i)
		}
	}

	if validCsrfToken(t3) {
		t.Fatal("t3 should have expired by now")
	}
}

func TestStopAfterBrokenConfig(t *testing.T) {
	baseDirs["config"] = "../../test/h1" // to load HTTPS keys
	expandLocations()

	cfg := config.Configuration{
		GUI: config.GUIConfiguration{
			RawAddress: "127.0.0.1:0",
			RawUseTLS:  false,
		},
	}
	w := config.Wrap("/dev/null", cfg)

	srv, err := newAPIService(protocol.LocalDeviceID, w, "", nil, nil, nil, nil, nil, nil)
	if err != nil {
		t.Fatal(err)
	}
	srv.started = make(chan struct{})

	sup := suture.NewSimple("test")
	sup.Add(srv)
	sup.ServeBackground()

	<-srv.started

	// Service is now running, listening on a random port on localhost. Now we
	// request a config change to a completely invalid listen address. The
	// commit will fail and the service will be in a broken state.

	newCfg := config.Configuration{
		GUI: config.GUIConfiguration{
			RawAddress: "totally not a valid address",
			RawUseTLS:  false,
		},
	}
	if srv.CommitConfiguration(cfg, newCfg) {
		t.Fatal("Config commit should have failed")
	}

	// Nonetheless, it should be fine to Stop() it without panic.

	sup.Stop()
}