remoting/host/policy_watcher_unittest.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/basictypes.h"
   6 #include "base/bind.h"
   7 #include "base/json/json_writer.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "base/run_loop.h"
  10 #include "base/single_thread_task_runner.h"
  11 #include "base/synchronization/waitable_event.h"
  12 #include "base/test/mock_log.h"
  13 #include "base/thread_task_runner_handle.h"
  14 #include "components/policy/core/common/fake_async_policy_loader.h"
  15 #include "policy/policy_constants.h"
  16 #include "remoting/host/dns_blackhole_checker.h"
  17 #include "remoting/host/policy_watcher.h"
  18 #include "testing/gmock/include/gmock/gmock.h"
  19 #include "testing/gtest/include/gtest/gtest.h"
  20
  21 namespace remoting {
  22
  23 namespace key = ::policy::key;
  24
  25 MATCHER_P(IsPolicies, dict, "") {
  26   bool equal = arg->Equals(dict);
  27   if (!equal) {
  28     std::string actual_value;
  29     base::JSONWriter::WriteWithOptions(
  30         *arg, base::JSONWriter::OPTIONS_PRETTY_PRINT, &actual_value);
  31
  32     std::string expected_value;
  33     base::JSONWriter::WriteWithOptions(
  34         *dict, base::JSONWriter::OPTIONS_PRETTY_PRINT, &expected_value);
  35
  36     *result_listener << "Policies are not equal. ";
  37     *result_listener << "Expected policy: " << expected_value << ". ";
  38     *result_listener << "Actual policy: " << actual_value << ".";
  39   }
  40   return equal;
  41 }
  42
  43 class MockPolicyCallback {
  44  public:
  45   MockPolicyCallback(){};
  46
  47   // TODO(lukasza): gmock cannot mock a method taking scoped_ptr<T>...
  48   MOCK_METHOD1(OnPolicyUpdatePtr, void(const base::DictionaryValue* policies));
  49   void OnPolicyUpdate(scoped_ptr<base::DictionaryValue> policies) {
  50     OnPolicyUpdatePtr(policies.get());
  51   }
  52
  53   MOCK_METHOD0(OnPolicyError, void());
  54
  55  private:
  56   DISALLOW_COPY_AND_ASSIGN(MockPolicyCallback);
  57 };
  58
  59 class PolicyWatcherTest : public testing::Test {
  60  public:
  61   PolicyWatcherTest() : message_loop_(base::MessageLoop::TYPE_IO) {}
  62
  63   void SetUp() override {
  64     // We expect no callbacks unless explicitly specified by individual tests.
  65     EXPECT_CALL(mock_policy_callback_, OnPolicyUpdatePtr(testing::_)).Times(0);
  66     EXPECT_CALL(mock_policy_callback_, OnPolicyError()).Times(0);
  67
  68     // Retaining a raw pointer to keep control over policy contents.
  69     policy_loader_ =
  70         new policy::FakeAsyncPolicyLoader(base::ThreadTaskRunnerHandle::Get());
  71     policy_watcher_ =
  72         PolicyWatcher::CreateFromPolicyLoader(make_scoped_ptr(policy_loader_));
  73
  74     nat_true_.SetBoolean(key::kRemoteAccessHostFirewallTraversal, true);
  75     nat_false_.SetBoolean(key::kRemoteAccessHostFirewallTraversal, false);
  76     nat_one_.SetInteger(key::kRemoteAccessHostFirewallTraversal, 1);
  77     nat_one_domain_full_.SetInteger(key::kRemoteAccessHostFirewallTraversal, 1);
  78     nat_one_domain_full_.SetString(key::kRemoteAccessHostDomain, kHostDomain);
  79     domain_empty_.SetString(key::kRemoteAccessHostDomain, std::string());
  80     domain_full_.SetString(key::kRemoteAccessHostDomain, kHostDomain);
  81     SetDefaults(nat_true_others_default_);
  82     nat_true_others_default_.SetBoolean(key::kRemoteAccessHostFirewallTraversal,
  83                                         true);
  84     SetDefaults(nat_false_others_default_);
  85     nat_false_others_default_.SetBoolean(
  86         key::kRemoteAccessHostFirewallTraversal, false);
  87     SetDefaults(domain_empty_others_default_);
  88     domain_empty_others_default_.SetString(key::kRemoteAccessHostDomain,
  89                                            std::string());
  90     SetDefaults(domain_full_others_default_);
  91     domain_full_others_default_.SetString(key::kRemoteAccessHostDomain,
  92                                           kHostDomain);
  93     nat_true_domain_empty_.SetBoolean(key::kRemoteAccessHostFirewallTraversal,
  94                                       true);
  95     nat_true_domain_empty_.SetString(key::kRemoteAccessHostDomain,
  96                                      std::string());
  97     nat_true_domain_full_.SetBoolean(key::kRemoteAccessHostFirewallTraversal,
  98                                      true);
  99     nat_true_domain_full_.SetString(key::kRemoteAccessHostDomain, kHostDomain);
 100     nat_false_domain_empty_.SetBoolean(key::kRemoteAccessHostFirewallTraversal,
 101                                        false);
 102     nat_false_domain_empty_.SetString(key::kRemoteAccessHostDomain,
 103                                       std::string());
 104     nat_false_domain_full_.SetBoolean(key::kRemoteAccessHostFirewallTraversal,
 105                                       false);
 106     nat_false_domain_full_.SetString(key::kRemoteAccessHostDomain, kHostDomain);
 107     SetDefaults(nat_true_domain_empty_others_default_);
 108     nat_true_domain_empty_others_default_.SetBoolean(
 109         key::kRemoteAccessHostFirewallTraversal, true);
 110     nat_true_domain_empty_others_default_.SetString(
 111         key::kRemoteAccessHostDomain, std::string());
 112     unknown_policies_.SetString("UnknownPolicyOne", std::string());
 113     unknown_policies_.SetString("UnknownPolicyTwo", std::string());
 114     unknown_policies_.SetBoolean("RemoteAccessHostUnknownPolicyThree", true);
 115
 116     const char kOverrideNatTraversalToFalse[] =
 117         "{ \"RemoteAccessHostFirewallTraversal\": false }";
 118     nat_true_and_overridden_.SetBoolean(key::kRemoteAccessHostFirewallTraversal,
 119                                         true);
 120     nat_true_and_overridden_.SetString(
 121         key::kRemoteAccessHostDebugOverridePolicies,
 122         kOverrideNatTraversalToFalse);
 123     pairing_true_.SetBoolean(key::kRemoteAccessHostAllowClientPairing, true);
 124     pairing_false_.SetBoolean(key::kRemoteAccessHostAllowClientPairing, false);
 125     gnubby_auth_true_.SetBoolean(key::kRemoteAccessHostAllowGnubbyAuth, true);
 126     gnubby_auth_false_.SetBoolean(key::kRemoteAccessHostAllowGnubbyAuth, false);
 127     relay_true_.SetBoolean(key::kRemoteAccessHostAllowRelayedConnection, true);
 128     relay_false_.SetBoolean(key::kRemoteAccessHostAllowRelayedConnection,
 129                             false);
 130     port_range_full_.SetString(key::kRemoteAccessHostUdpPortRange, kPortRange);
 131     port_range_empty_.SetString(key::kRemoteAccessHostUdpPortRange,
 132                                 std::string());
 133     port_range_malformed_.SetString(key::kRemoteAccessHostUdpPortRange,
 134                                     "malformed");
 135     port_range_malformed_domain_full_.MergeDictionary(&port_range_malformed_);
 136     port_range_malformed_domain_full_.SetString(key::kRemoteAccessHostDomain,
 137                                                 kHostDomain);
 138
 139     curtain_true_.SetBoolean(key::kRemoteAccessHostRequireCurtain, true);
 140     curtain_false_.SetBoolean(key::kRemoteAccessHostRequireCurtain, false);
 141     username_true_.SetBoolean(key::kRemoteAccessHostMatchUsername, true);
 142     username_false_.SetBoolean(key::kRemoteAccessHostMatchUsername, false);
 143     talk_gadget_blah_.SetString(key::kRemoteAccessHostTalkGadgetPrefix, "blah");
 144     third_party_auth_partial_.SetString(key::kRemoteAccessHostTokenUrl,
 145                                         "https://token.com");
 146     third_party_auth_partial_.SetString(
 147         key::kRemoteAccessHostTokenValidationUrl, "https://validation.com");
 148     third_party_auth_full_.MergeDictionary(&third_party_auth_partial_);
 149     third_party_auth_full_.SetString(
 150         key::kRemoteAccessHostTokenValidationCertificateIssuer,
 151         "certificate subject");
 152     third_party_auth_cert_empty_.MergeDictionary(&third_party_auth_partial_);
 153     third_party_auth_cert_empty_.SetString(
 154         key::kRemoteAccessHostTokenValidationCertificateIssuer, "");
 155
 156 #if !defined(NDEBUG)
 157     SetDefaults(nat_false_overridden_others_default_);
 158     nat_false_overridden_others_default_.SetBoolean(
 159         key::kRemoteAccessHostFirewallTraversal, false);
 160     nat_false_overridden_others_default_.SetString(
 161         key::kRemoteAccessHostDebugOverridePolicies,
 162         kOverrideNatTraversalToFalse);
 163 #endif
 164   }
 165
 166   void TearDown() override {
 167     policy_watcher_.reset();
 168     policy_loader_ = nullptr;
 169     base::RunLoop().RunUntilIdle();
 170   }
 171
 172  protected:
 173   void StartWatching() {
 174     policy_watcher_->StartWatching(
 175         base::Bind(&MockPolicyCallback::OnPolicyUpdate,
 176                    base::Unretained(&mock_policy_callback_)),
 177         base::Bind(&MockPolicyCallback::OnPolicyError,
 178                    base::Unretained(&mock_policy_callback_)));
 179     base::RunLoop().RunUntilIdle();
 180   }
 181
 182   void SetPolicies(const base::DictionaryValue& dict) {
 183     // Copy |dict| into |policy_bundle|.
 184     policy::PolicyNamespace policy_namespace =
 185         policy::PolicyNamespace(policy::POLICY_DOMAIN_CHROME, std::string());
 186     policy::PolicyBundle policy_bundle;
 187     policy::PolicyMap& policy_map = policy_bundle.Get(policy_namespace);
 188     policy_map.LoadFrom(&dict, policy::POLICY_LEVEL_MANDATORY,
 189                         policy::POLICY_SCOPE_MACHINE);
 190
 191     // Simulate a policy file/registry/preference update.
 192     policy_loader_->SetPolicies(policy_bundle);
 193     policy_loader_->PostReloadOnBackgroundThread(true /* force reload asap */);
 194     base::RunLoop().RunUntilIdle();
 195   }
 196
 197   const policy::Schema* GetPolicySchema() {
 198     return policy_watcher_->GetPolicySchema();
 199   }
 200
 201   const base::DictionaryValue& GetDefaultValues() {
 202     return *(policy_watcher_->default_values_);
 203   }
 204
 205   MOCK_METHOD0(PostPolicyWatcherShutdown, void());
 206
 207   static const char* kHostDomain;
 208   static const char* kPortRange;
 209   base::MessageLoop message_loop_;
 210   MockPolicyCallback mock_policy_callback_;
 211
 212   // |policy_loader_| is owned by |policy_watcher_|. PolicyWatcherTest retains
 213   // a raw pointer to |policy_loader_| in order to control the simulated / faked
 214   // policy contents.
 215   policy::FakeAsyncPolicyLoader* policy_loader_;
 216   scoped_ptr<PolicyWatcher> policy_watcher_;
 217
 218   base::DictionaryValue empty_;
 219   base::DictionaryValue nat_true_;
 220   base::DictionaryValue nat_false_;
 221   base::DictionaryValue nat_one_;
 222   base::DictionaryValue nat_one_domain_full_;
 223   base::DictionaryValue domain_empty_;
 224   base::DictionaryValue domain_full_;
 225   base::DictionaryValue nat_true_others_default_;
 226   base::DictionaryValue nat_false_others_default_;
 227   base::DictionaryValue domain_empty_others_default_;
 228   base::DictionaryValue domain_full_others_default_;
 229   base::DictionaryValue nat_true_domain_empty_;
 230   base::DictionaryValue nat_true_domain_full_;
 231   base::DictionaryValue nat_false_domain_empty_;
 232   base::DictionaryValue nat_false_domain_full_;
 233   base::DictionaryValue nat_true_domain_empty_others_default_;
 234   base::DictionaryValue unknown_policies_;
 235   base::DictionaryValue nat_true_and_overridden_;
 236   base::DictionaryValue nat_false_overridden_others_default_;
 237   base::DictionaryValue pairing_true_;
 238   base::DictionaryValue pairing_false_;
 239   base::DictionaryValue gnubby_auth_true_;
 240   base::DictionaryValue gnubby_auth_false_;
 241   base::DictionaryValue relay_true_;
 242   base::DictionaryValue relay_false_;
 243   base::DictionaryValue port_range_full_;
 244   base::DictionaryValue port_range_empty_;
 245   base::DictionaryValue port_range_malformed_;
 246   base::DictionaryValue port_range_malformed_domain_full_;
 247   base::DictionaryValue curtain_true_;
 248   base::DictionaryValue curtain_false_;
 249   base::DictionaryValue username_true_;
 250   base::DictionaryValue username_false_;
 251   base::DictionaryValue talk_gadget_blah_;
 252   base::DictionaryValue third_party_auth_full_;
 253   base::DictionaryValue third_party_auth_partial_;
 254   base::DictionaryValue third_party_auth_cert_empty_;
 255
 256  private:
 257   void SetDefaults(base::DictionaryValue& dict) {
 258     dict.SetBoolean(key::kRemoteAccessHostFirewallTraversal, true);
 259     dict.SetBoolean(key::kRemoteAccessHostAllowRelayedConnection, true);
 260     dict.SetString(key::kRemoteAccessHostUdpPortRange, "");
 261     dict.SetString(key::kRemoteAccessHostDomain, std::string());
 262     dict.SetBoolean(key::kRemoteAccessHostMatchUsername, false);
 263     dict.SetString(key::kRemoteAccessHostTalkGadgetPrefix,
 264                    kDefaultHostTalkGadgetPrefix);
 265     dict.SetBoolean(key::kRemoteAccessHostRequireCurtain, false);
 266     dict.SetString(key::kRemoteAccessHostTokenUrl, "");
 267     dict.SetString(key::kRemoteAccessHostTokenValidationUrl, "");
 268     dict.SetString(key::kRemoteAccessHostTokenValidationCertificateIssuer, "");
 269     dict.SetBoolean(key::kRemoteAccessHostAllowClientPairing, true);
 270     dict.SetBoolean(key::kRemoteAccessHostAllowGnubbyAuth, true);
 271 #if !defined(NDEBUG)
 272     dict.SetString(key::kRemoteAccessHostDebugOverridePolicies, "");
 273 #endif
 274
 275     ASSERT_THAT(&dict, IsPolicies(&GetDefaultValues()))
 276         << "Sanity check that defaults expected by the test code "
 277         << "match what is stored in PolicyWatcher::default_values_";
 278   }
 279 };
 280
 281 const char* PolicyWatcherTest::kHostDomain = "google.com";
 282 const char* PolicyWatcherTest::kPortRange = "12400-12409";
 283
 284 TEST_F(PolicyWatcherTest, None) {
 285   EXPECT_CALL(mock_policy_callback_,
 286               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 287
 288   SetPolicies(empty_);
 289   StartWatching();
 290 }
 291
 292 TEST_F(PolicyWatcherTest, NatTrue) {
 293   EXPECT_CALL(mock_policy_callback_,
 294               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 295
 296   SetPolicies(nat_true_);
 297   StartWatching();
 298 }
 299
 300 TEST_F(PolicyWatcherTest, NatFalse) {
 301   EXPECT_CALL(mock_policy_callback_,
 302               OnPolicyUpdatePtr(IsPolicies(&nat_false_others_default_)));
 303
 304   SetPolicies(nat_false_);
 305   StartWatching();
 306 }
 307
 308 TEST_F(PolicyWatcherTest, NatWrongType) {
 309   EXPECT_CALL(mock_policy_callback_, OnPolicyError());
 310
 311   SetPolicies(nat_one_);
 312   StartWatching();
 313 }
 314
 315 // This test verifies that a mistyped policy value is still detected
 316 // even though it doesn't change during the second SetPolicies call.
 317 TEST_F(PolicyWatcherTest, NatWrongTypeThenIrrelevantChange) {
 318   EXPECT_CALL(mock_policy_callback_, OnPolicyError()).Times(2);
 319
 320   SetPolicies(nat_one_);
 321   StartWatching();
 322   SetPolicies(nat_one_domain_full_);
 323 }
 324
 325 // This test verifies that a malformed policy value is still detected
 326 // even though it doesn't change during the second SetPolicies call.
 327 TEST_F(PolicyWatcherTest, PortRangeMalformedThenIrrelevantChange) {
 328   EXPECT_CALL(mock_policy_callback_, OnPolicyError()).Times(2);
 329
 330   SetPolicies(port_range_malformed_);
 331   StartWatching();
 332   SetPolicies(port_range_malformed_domain_full_);
 333 }
 334
 335 TEST_F(PolicyWatcherTest, DomainEmpty) {
 336   EXPECT_CALL(mock_policy_callback_,
 337               OnPolicyUpdatePtr(IsPolicies(&domain_empty_others_default_)));
 338
 339   SetPolicies(domain_empty_);
 340   StartWatching();
 341 }
 342
 343 TEST_F(PolicyWatcherTest, DomainFull) {
 344   EXPECT_CALL(mock_policy_callback_,
 345               OnPolicyUpdatePtr(IsPolicies(&domain_full_others_default_)));
 346
 347   SetPolicies(domain_full_);
 348   StartWatching();
 349 }
 350
 351 TEST_F(PolicyWatcherTest, NatNoneThenTrue) {
 352   EXPECT_CALL(mock_policy_callback_,
 353               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 354
 355   SetPolicies(empty_);
 356   StartWatching();
 357   SetPolicies(nat_true_);
 358 }
 359
 360 TEST_F(PolicyWatcherTest, NatNoneThenTrueThenTrue) {
 361   EXPECT_CALL(mock_policy_callback_,
 362               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 363
 364   SetPolicies(empty_);
 365   StartWatching();
 366   SetPolicies(nat_true_);
 367   SetPolicies(nat_true_);
 368 }
 369
 370 TEST_F(PolicyWatcherTest, NatNoneThenTrueThenTrueThenFalse) {
 371   testing::InSequence sequence;
 372   EXPECT_CALL(mock_policy_callback_,
 373               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 374   EXPECT_CALL(mock_policy_callback_,
 375               OnPolicyUpdatePtr(IsPolicies(&nat_false_)));
 376
 377   SetPolicies(empty_);
 378   StartWatching();
 379   SetPolicies(nat_true_);
 380   SetPolicies(nat_true_);
 381   SetPolicies(nat_false_);
 382 }
 383
 384 TEST_F(PolicyWatcherTest, NatNoneThenFalse) {
 385   testing::InSequence sequence;
 386   EXPECT_CALL(mock_policy_callback_,
 387               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 388   EXPECT_CALL(mock_policy_callback_,
 389               OnPolicyUpdatePtr(IsPolicies(&nat_false_)));
 390
 391   SetPolicies(empty_);
 392   StartWatching();
 393   SetPolicies(nat_false_);
 394 }
 395
 396 TEST_F(PolicyWatcherTest, NatNoneThenFalseThenTrue) {
 397   testing::InSequence sequence;
 398   EXPECT_CALL(mock_policy_callback_,
 399               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 400   EXPECT_CALL(mock_policy_callback_,
 401               OnPolicyUpdatePtr(IsPolicies(&nat_false_)));
 402   EXPECT_CALL(mock_policy_callback_, OnPolicyUpdatePtr(IsPolicies(&nat_true_)));
 403
 404   SetPolicies(empty_);
 405   StartWatching();
 406   SetPolicies(nat_false_);
 407   SetPolicies(nat_true_);
 408 }
 409
 410 TEST_F(PolicyWatcherTest, ChangeOneRepeatedlyThenTwo) {
 411   testing::InSequence sequence;
 412   EXPECT_CALL(
 413       mock_policy_callback_,
 414       OnPolicyUpdatePtr(IsPolicies(&nat_true_domain_empty_others_default_)));
 415   EXPECT_CALL(mock_policy_callback_,
 416               OnPolicyUpdatePtr(IsPolicies(&domain_full_)));
 417   EXPECT_CALL(mock_policy_callback_,
 418               OnPolicyUpdatePtr(IsPolicies(&nat_false_)));
 419   EXPECT_CALL(mock_policy_callback_,
 420               OnPolicyUpdatePtr(IsPolicies(&domain_empty_)));
 421   EXPECT_CALL(mock_policy_callback_,
 422               OnPolicyUpdatePtr(IsPolicies(&nat_true_domain_full_)));
 423
 424   SetPolicies(nat_true_domain_empty_);
 425   StartWatching();
 426   SetPolicies(nat_true_domain_full_);
 427   SetPolicies(nat_false_domain_full_);
 428   SetPolicies(nat_false_domain_empty_);
 429   SetPolicies(nat_true_domain_full_);
 430 }
 431
 432 TEST_F(PolicyWatcherTest, FilterUnknownPolicies) {
 433   testing::InSequence sequence;
 434   EXPECT_CALL(mock_policy_callback_,
 435               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 436
 437   SetPolicies(empty_);
 438   StartWatching();
 439   SetPolicies(unknown_policies_);
 440   SetPolicies(empty_);
 441 }
 442
 443 class MisspelledPolicyTest : public PolicyWatcherTest,
 444                              public ::testing::WithParamInterface<const char*> {
 445 };
 446
 447 // Verify that a misspelled policy causes a warning written to the log.
 448 TEST_P(MisspelledPolicyTest, WarningLogged) {
 449   const char* misspelled_policy_name = GetParam();
 450   base::test::MockLog mock_log;
 451
 452   ON_CALL(mock_log, Log(testing::_, testing::_, testing::_, testing::_,
 453                         testing::_)).WillByDefault(testing::Return(true));
 454
 455   EXPECT_CALL(mock_log,
 456               Log(logging::LOG_WARNING, testing::_, testing::_, testing::_,
 457                   testing::HasSubstr(misspelled_policy_name))).Times(1);
 458
 459   EXPECT_CALL(mock_policy_callback_,
 460               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 461
 462   base::DictionaryValue misspelled_policies;
 463   misspelled_policies.SetString(misspelled_policy_name, "some test value");
 464   mock_log.StartCapturingLogs();
 465
 466   SetPolicies(misspelled_policies);
 467   StartWatching();
 468
 469   mock_log.StopCapturingLogs();
 470 }
 471
 472 INSTANTIATE_TEST_CASE_P(
 473     PolicyWatcherTest,
 474     MisspelledPolicyTest,
 475     ::testing::Values("RemoteAccessHostDomainX",
 476                       "XRemoteAccessHostDomain",
 477                       "RemoteAccessHostdomain",
 478                       "RemoteAccessHostPolicyForFutureVersion"));
 479
 480 TEST_F(PolicyWatcherTest, DebugOverrideNatPolicy) {
 481 #if !defined(NDEBUG)
 482   EXPECT_CALL(
 483       mock_policy_callback_,
 484       OnPolicyUpdatePtr(IsPolicies(&nat_false_overridden_others_default_)));
 485 #else
 486   EXPECT_CALL(mock_policy_callback_,
 487               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 488 #endif
 489
 490   SetPolicies(nat_true_and_overridden_);
 491   StartWatching();
 492 }
 493
 494 TEST_F(PolicyWatcherTest, PairingFalseThenTrue) {
 495   testing::InSequence sequence;
 496   EXPECT_CALL(mock_policy_callback_,
 497               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 498   EXPECT_CALL(mock_policy_callback_,
 499               OnPolicyUpdatePtr(IsPolicies(&pairing_false_)));
 500   EXPECT_CALL(mock_policy_callback_,
 501               OnPolicyUpdatePtr(IsPolicies(&pairing_true_)));
 502
 503   SetPolicies(empty_);
 504   StartWatching();
 505   SetPolicies(pairing_false_);
 506   SetPolicies(pairing_true_);
 507 }
 508
 509 TEST_F(PolicyWatcherTest, GnubbyAuth) {
 510   testing::InSequence sequence;
 511   EXPECT_CALL(mock_policy_callback_,
 512               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 513   EXPECT_CALL(mock_policy_callback_,
 514               OnPolicyUpdatePtr(IsPolicies(&gnubby_auth_false_)));
 515   EXPECT_CALL(mock_policy_callback_,
 516               OnPolicyUpdatePtr(IsPolicies(&gnubby_auth_true_)));
 517
 518   SetPolicies(empty_);
 519   StartWatching();
 520   SetPolicies(gnubby_auth_false_);
 521   SetPolicies(gnubby_auth_true_);
 522 }
 523
 524 TEST_F(PolicyWatcherTest, Relay) {
 525   testing::InSequence sequence;
 526   EXPECT_CALL(mock_policy_callback_,
 527               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 528   EXPECT_CALL(mock_policy_callback_,
 529               OnPolicyUpdatePtr(IsPolicies(&relay_false_)));
 530   EXPECT_CALL(mock_policy_callback_,
 531               OnPolicyUpdatePtr(IsPolicies(&relay_true_)));
 532
 533   SetPolicies(empty_);
 534   StartWatching();
 535   SetPolicies(relay_false_);
 536   SetPolicies(relay_true_);
 537 }
 538
 539 TEST_F(PolicyWatcherTest, Curtain) {
 540   testing::InSequence sequence;
 541   EXPECT_CALL(mock_policy_callback_,
 542               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 543   EXPECT_CALL(mock_policy_callback_,
 544               OnPolicyUpdatePtr(IsPolicies(&curtain_true_)));
 545   EXPECT_CALL(mock_policy_callback_,
 546               OnPolicyUpdatePtr(IsPolicies(&curtain_false_)));
 547
 548   SetPolicies(empty_);
 549   StartWatching();
 550   SetPolicies(curtain_true_);
 551   SetPolicies(curtain_false_);
 552 }
 553
 554 TEST_F(PolicyWatcherTest, MatchUsername) {
 555   testing::InSequence sequence;
 556   EXPECT_CALL(mock_policy_callback_,
 557               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 558 #if !defined(OS_WIN)
 559   EXPECT_CALL(mock_policy_callback_,
 560               OnPolicyUpdatePtr(IsPolicies(&username_true_)));
 561   EXPECT_CALL(mock_policy_callback_,
 562               OnPolicyUpdatePtr(IsPolicies(&username_false_)));
 563 #else
 564 // On Windows the MatchUsername policy is ignored and therefore the 2
 565 // SetPolicies calls won't result in any calls to OnPolicyUpdate.
 566 #endif
 567
 568   SetPolicies(empty_);
 569   StartWatching();
 570   SetPolicies(username_true_);
 571   SetPolicies(username_false_);
 572 }
 573
 574 TEST_F(PolicyWatcherTest, TalkGadgetPrefix) {
 575   testing::InSequence sequence;
 576   EXPECT_CALL(mock_policy_callback_,
 577               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 578   EXPECT_CALL(mock_policy_callback_,
 579               OnPolicyUpdatePtr(IsPolicies(&talk_gadget_blah_)));
 580
 581   SetPolicies(empty_);
 582   StartWatching();
 583   SetPolicies(talk_gadget_blah_);
 584 }
 585
 586 TEST_F(PolicyWatcherTest, ThirdPartyAuthFull) {
 587   testing::InSequence sequence;
 588   EXPECT_CALL(mock_policy_callback_,
 589               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 590   EXPECT_CALL(mock_policy_callback_,
 591               OnPolicyUpdatePtr(IsPolicies(&third_party_auth_full_)));
 592
 593   SetPolicies(empty_);
 594   StartWatching();
 595   SetPolicies(third_party_auth_full_);
 596 }
 597
 598 // This test verifies what happens when only 1 out of 3 third-party auth
 599 // policies changes.  Without the other 2 policy values such policy values
 600 // combination is invalid (i.e. cannot have TokenUrl without
 601 // TokenValidationUrl) and can trigger OnPolicyError unless PolicyWatcher
 602 // implementation is careful around this scenario.
 603 TEST_F(PolicyWatcherTest, ThirdPartyAuthPartialToFull) {
 604   testing::InSequence sequence;
 605   EXPECT_CALL(mock_policy_callback_,
 606               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 607   EXPECT_CALL(mock_policy_callback_,
 608               OnPolicyUpdatePtr(IsPolicies(&third_party_auth_cert_empty_)));
 609   EXPECT_CALL(mock_policy_callback_,
 610               OnPolicyUpdatePtr(IsPolicies(&third_party_auth_full_)));
 611
 612   SetPolicies(empty_);
 613   StartWatching();
 614   SetPolicies(third_party_auth_partial_);
 615   SetPolicies(third_party_auth_full_);
 616 }
 617
 618 TEST_F(PolicyWatcherTest, UdpPortRange) {
 619   testing::InSequence sequence;
 620   EXPECT_CALL(mock_policy_callback_,
 621               OnPolicyUpdatePtr(IsPolicies(&nat_true_others_default_)));
 622   EXPECT_CALL(mock_policy_callback_,
 623               OnPolicyUpdatePtr(IsPolicies(&port_range_full_)));
 624   EXPECT_CALL(mock_policy_callback_,
 625               OnPolicyUpdatePtr(IsPolicies(&port_range_empty_)));
 626
 627   SetPolicies(empty_);
 628   StartWatching();
 629   SetPolicies(port_range_full_);
 630   SetPolicies(port_range_empty_);
 631 }
 632
 633 TEST_F(PolicyWatcherTest, PolicySchemaAndPolicyWatcherShouldBeInSync) {
 634   // This test verifies that
 635   // 1) policy schema (generated out of policy_templates.json)
 636   // and
 637   // 2) PolicyWatcher's code (i.e. contents of the |default_values_| field)
 638   // are kept in-sync.
 639
 640   std::map<std::string, base::Value::Type> expected_schema;
 641   for (base::DictionaryValue::Iterator i(GetDefaultValues()); !i.IsAtEnd();
 642        i.Advance()) {
 643     expected_schema[i.key()] = i.value().GetType();
 644   }
 645 #if defined(OS_WIN)
 646   // RemoteAccessHostMatchUsername is marked in policy_templates.json as not
 647   // supported on Windows and therefore is (by design) excluded from the schema.
 648   expected_schema.erase(key::kRemoteAccessHostMatchUsername);
 649 #endif
 650 #if defined(NDEBUG)
 651   // Policy schema / policy_templates.json cannot differ between debug and
 652   // release builds so we compensate below to account for the fact that
 653   // PolicyWatcher::default_values_ does differ between debug and release.
 654   expected_schema[key::kRemoteAccessHostDebugOverridePolicies] =
 655       base::Value::TYPE_STRING;
 656 #endif
 657
 658   std::map<std::string, base::Value::Type> actual_schema;
 659   const policy::Schema* schema = GetPolicySchema();
 660   ASSERT_TRUE(schema->valid());
 661   for (auto it = schema->GetPropertiesIterator(); !it.IsAtEnd(); it.Advance()) {
 662     std::string key = it.key();
 663     if (key.find("RemoteAccessHost") == std::string::npos) {
 664       // For now PolicyWatcher::GetPolicySchema() mixes Chrome and Chromoting
 665       // policies, so we have to skip them here.
 666       continue;
 667     }
 668     actual_schema[key] = it.schema().type();
 669   }
 670
 671   EXPECT_THAT(actual_schema, testing::ContainerEq(expected_schema));
 672 }
 673
 674 TEST_F(PolicyWatcherTest, SchemaTypeCheck) {
 675   const policy::Schema* schema = GetPolicySchema();
 676   ASSERT_TRUE(schema->valid());
 677
 678   // Check one, random "string" policy to see if the type propagated correctly
 679   // from policy_templates.json file.
 680   const policy::Schema string_schema =
 681       schema->GetKnownProperty("RemoteAccessHostDomain");
 682   EXPECT_TRUE(string_schema.valid());
 683   EXPECT_EQ(string_schema.type(), base::Value::Type::TYPE_STRING);
 684
 685   // And check one, random "boolean" policy to see if the type propagated
 686   // correctly from policy_templates.json file.
 687   const policy::Schema boolean_schema =
 688       schema->GetKnownProperty("RemoteAccessHostRequireCurtain");
 689   EXPECT_TRUE(boolean_schema.valid());
 690   EXPECT_EQ(boolean_schema.type(), base::Value::Type::TYPE_BOOLEAN);
 691 }
 692
 693 // Unit tests cannot instantiate PolicyWatcher on ChromeOS
 694 // (as this requires running inside a browser process).
 695 #ifndef OS_CHROMEOS
 696
 697 namespace {
 698
 699 void OnPolicyUpdatedDumpPolicy(scoped_ptr<base::DictionaryValue> policies) {
 700   VLOG(1) << "OnPolicyUpdated callback received the following policies:";
 701
 702   for (base::DictionaryValue::Iterator iter(*policies); !iter.IsAtEnd();
 703        iter.Advance()) {
 704     switch (iter.value().GetType()) {
 705       case base::Value::Type::TYPE_STRING: {
 706         std::string value;
 707         CHECK(iter.value().GetAsString(&value));
 708         VLOG(1) << iter.key() << " = "
 709                 << "string: " << '"' << value << '"';
 710         break;
 711       }
 712       case base::Value::Type::TYPE_BOOLEAN: {
 713         bool value;
 714         CHECK(iter.value().GetAsBoolean(&value));
 715         VLOG(1) << iter.key() << " = "
 716                 << "boolean: " << (value ? "True" : "False");
 717         break;
 718       }
 719       default: {
 720         VLOG(1) << iter.key() << " = "
 721                 << "unrecognized type";
 722         break;
 723       }
 724     }
 725   }
 726 }
 727
 728 }  // anonymous namespace
 729
 730 // To dump policy contents, run unit tests with the following flags:
 731 // out/Debug/remoting_unittests --gtest_filter=*TestRealChromotingPolicy* -v=1
 732 TEST_F(PolicyWatcherTest, TestRealChromotingPolicy) {
 733   scoped_refptr<base::SingleThreadTaskRunner> task_runner =
 734       base::MessageLoop::current()->task_runner();
 735   scoped_ptr<PolicyWatcher> policy_watcher(
 736       PolicyWatcher::Create(nullptr, task_runner));
 737
 738   {
 739     base::RunLoop run_loop;
 740     policy_watcher->StartWatching(base::Bind(OnPolicyUpdatedDumpPolicy),
 741                                   base::Bind(base::DoNothing));
 742     run_loop.RunUntilIdle();
 743   }
 744
 745   // Today, the only verification offered by this test is:
 746   // - Manual verification of policy values dumped by OnPolicyUpdatedDumpPolicy
 747   // - Automated verification that nothing crashed
 748 }
 749
 750 #endif
 751
 752 }  // namespace remoting