tailscale/control/controlclient/direct_test.go
David Crawshaw 0590ad68be controlclient, ipn: adjust tests for authURL semantic changes
The tests cheat at filling out web forms by directly POSTing to
the target. The target for authURLs has changed slightly, the base
authURL now redirects the user to the login page.

Additionally, the authURL cycle now checks the cookie is set
correctly, so we add cookie jars where necessary to pass the
cookie through.
2020-03-30 15:51:46 +11:00

317 lines
7.7 KiB
Go

// Copyright (c) 2020 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.
// +build depends_on_currently_unreleased
package controlclient
import (
"context"
"io/ioutil"
"net/http"
"net/http/cookiejar"
"net/http/httptest"
"os"
"testing"
"time"
"github.com/klauspost/compress/zstd"
"github.com/tailscale/wireguard-go/wgcfg"
"tailscale.com/tailcfg"
"tailscale.io/control" // not yet released
)
func TestClientsReusingKeys(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "control-test-")
if err != nil {
t.Fatal(err)
}
var server *control.Server
httpsrv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
server.ServeHTTP(w, r)
}))
httpc := httpsrv.Client()
httpc.Jar, err = cookiejar.New(nil)
if err != nil {
t.Fatal(err)
}
server, err = control.New(tmpdir, tmpdir, httpsrv.URL, true)
if err != nil {
t.Fatal(err)
}
server.QuietLogging = true
defer func() {
httpsrv.CloseClientConnections()
httpsrv.Close()
os.RemoveAll(tmpdir)
}()
hi := NewHostinfo()
hi.FrontendLogID = "go-test-only"
hi.BackendLogID = "go-test-only"
c1, err := NewDirect(Options{
ServerURL: httpsrv.URL,
HTTPC: httpsrv.Client(),
//TimeNow: s.control.TimeNow,
Logf: func(fmt string, args ...interface{}) {
t.Helper()
t.Logf("c1: "+fmt, args...)
},
Hostinfo: hi,
})
if err != nil {
t.Fatal(err)
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
authURL, err := c1.TryLogin(ctx, nil, 0)
if err != nil {
t.Fatal(err)
}
const user = "testuser1@tailscale.onmicrosoft.com"
postAuthURL(t, ctx, httpc, user, authURL)
newURL, err := c1.WaitLoginURL(ctx, authURL)
if err != nil {
t.Fatal(err)
}
if newURL != "" {
t.Fatalf("unexpected newURL: %s", newURL)
}
pollErrCh := make(chan error)
go func() {
err := c1.PollNetMap(ctx, -1, func(netMap *NetworkMap) {})
pollErrCh <- err
}()
select {
case err := <-pollErrCh:
t.Fatal(err)
default:
}
c2, err := NewDirect(Options{
ServerURL: httpsrv.URL,
HTTPC: httpsrv.Client(),
Logf: func(fmt string, args ...interface{}) {
t.Helper()
t.Logf("c2: "+fmt, args...)
},
Persist: c1.GetPersist(),
Hostinfo: hi,
NewDecompressor: func() (Decompressor, error) {
return zstd.NewReader(nil)
},
KeepAlive: true,
})
if err != nil {
t.Fatal(err)
}
authURL, err = c2.TryLogin(ctx, nil, 0)
if err != nil {
t.Fatal(err)
}
if authURL != "" {
t.Errorf("unexpected authURL %s", authURL)
}
err = c2.PollNetMap(ctx, 1, func(netMap *NetworkMap) {})
if err != nil {
t.Fatal(err)
}
select {
case err := <-pollErrCh:
t.Logf("expected poll error: %v", err)
case <-time.After(5 * time.Second):
t.Fatal("first client poll failed to close")
}
}
func TestClientsReusingOldKey(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "control-test-")
if err != nil {
t.Fatal(err)
}
var server *control.Server
httpsrv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
server.ServeHTTP(w, r)
}))
httpc := httpsrv.Client()
httpc.Jar, err = cookiejar.New(nil)
if err != nil {
t.Fatal(err)
}
server, err = control.New(tmpdir, tmpdir, httpsrv.URL, true)
if err != nil {
t.Fatal(err)
}
server.QuietLogging = true
defer func() {
httpsrv.CloseClientConnections()
httpsrv.Close()
os.RemoveAll(tmpdir)
}()
hi := NewHostinfo()
hi.FrontendLogID = "go-test-only"
hi.BackendLogID = "go-test-only"
genOpts := func() Options {
return Options{
ServerURL: httpsrv.URL,
HTTPC: httpc,
//TimeNow: s.control.TimeNow,
Logf: func(fmt string, args ...interface{}) {
t.Helper()
t.Logf("c1: "+fmt, args...)
},
Hostinfo: hi,
}
}
// Login with a new node key. This requires authorization.
c1, err := NewDirect(genOpts())
if err != nil {
t.Fatal(err)
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
authURL, err := c1.TryLogin(ctx, nil, 0)
if err != nil {
t.Fatal(err)
}
const user = "testuser1@tailscale.onmicrosoft.com"
postAuthURL(t, ctx, httpc, user, authURL)
newURL, err := c1.WaitLoginURL(ctx, authURL)
if err != nil {
t.Fatal(err)
}
if newURL != "" {
t.Fatalf("unexpected newURL: %s", newURL)
}
if err := c1.PollNetMap(ctx, 1, func(netMap *NetworkMap) {}); err != nil {
t.Fatal(err)
}
newPrivKey := func(t *testing.T) wgcfg.PrivateKey {
t.Helper()
k, err := wgcfg.NewPrivateKey()
if err != nil {
t.Fatal(err)
}
return k
}
// Replace the previous key with a new key.
persist1 := c1.GetPersist()
persist2 := Persist{
PrivateMachineKey: persist1.PrivateMachineKey,
OldPrivateNodeKey: persist1.PrivateNodeKey,
PrivateNodeKey: newPrivKey(t),
}
opts := genOpts()
opts.Persist = persist2
c1, err = NewDirect(opts)
if err != nil {
t.Fatal(err)
}
if authURL, err := c1.TryLogin(ctx, nil, 0); err != nil {
t.Fatal(err)
} else if authURL == "" {
t.Fatal("expected authURL for reused oldNodeKey, got none")
} else {
postAuthURL(t, ctx, httpc, user, authURL)
if newURL, err := c1.WaitLoginURL(ctx, authURL); err != nil {
t.Fatal(err)
} else if newURL != "" {
t.Fatalf("unexpected newURL: %s", newURL)
}
}
if p := c1.GetPersist(); p.PrivateNodeKey != opts.Persist.PrivateNodeKey {
t.Error("unexpected node key change")
} else {
persist2 = p
}
// Here we simulate a client using using old persistent data.
// We use the key we have already replaced as the old node key.
// This requires the user to authenticate.
persist3 := Persist{
PrivateMachineKey: persist1.PrivateMachineKey,
OldPrivateNodeKey: persist1.PrivateNodeKey,
PrivateNodeKey: newPrivKey(t),
}
opts = genOpts()
opts.Persist = persist3
c1, err = NewDirect(opts)
if err != nil {
t.Fatal(err)
}
if authURL, err := c1.TryLogin(ctx, nil, 0); err != nil {
t.Fatal(err)
} else if authURL == "" {
t.Fatal("expected authURL for reused oldNodeKey, got none")
} else {
postAuthURL(t, ctx, httpc, user, authURL)
if newURL, err := c1.WaitLoginURL(ctx, authURL); err != nil {
t.Fatal(err)
} else if newURL != "" {
t.Fatalf("unexpected newURL: %s", newURL)
}
}
if err := c1.PollNetMap(ctx, 1, func(netMap *NetworkMap) {}); err != nil {
t.Fatal(err)
}
// At this point, there should only be one node for the machine key
// registered as active in the server.
mkey := tailcfg.MachineKey(persist1.PrivateMachineKey.Public())
nodeIDs, err := server.DB().MachineNodes(mkey)
if err != nil {
t.Fatal(err)
}
if len(nodeIDs) != 1 {
t.Logf("active nodes for machine key %v:", mkey)
for i, nodeID := range nodeIDs {
nodeKey := server.DB().NodeKey(nodeID)
t.Logf("\tnode %d: id=%v, key=%v", i, nodeID, nodeKey)
}
t.Fatalf("want 1 active node for the client machine, got %d", len(nodeIDs))
}
// Now try the previous node key. It should fail.
opts = genOpts()
opts.Persist = persist2
c1, err = NewDirect(opts)
if err != nil {
t.Fatal(err)
}
// TODO(crawshaw): make this return an actual error.
// Have cfgdb track expired keys, and when an expired key is reused
// produce an error.
if authURL, err := c1.TryLogin(ctx, nil, 0); err != nil {
t.Fatal(err)
} else if authURL == "" {
t.Fatal("expected authURL for reused nodeKey, got none")
} else {
postAuthURL(t, ctx, httpc, user, authURL)
if newURL, err := c1.WaitLoginURL(ctx, authURL); err != nil {
t.Fatal(err)
} else if newURL != "" {
t.Fatalf("unexpected newURL: %s", newURL)
}
}
if err := c1.PollNetMap(ctx, 1, func(netMap *NetworkMap) {}); err != nil {
t.Fatal(err)
}
if nodeIDs, err := server.DB().MachineNodes(mkey); err != nil {
t.Fatal(err)
} else if len(nodeIDs) != 1 {
t.Fatalf("want 1 active node for the client machine, got %d", len(nodeIDs))
}
}