chrome/browser/policy/cloud/cloud_policy_browsertest.cc

   1 // Copyright (c) 2012 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/callback.h"
   6 #include "base/command_line.h"
   7 #include "base/files/file_path.h"
   8 #include "base/files/file_util.h"
   9 #include "base/files/scoped_temp_dir.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/path_service.h"
  12 #include "base/prefs/pref_service.h"
  13 #include "base/run_loop.h"
  14 #include "base/strings/stringprintf.h"
  15 #include "base/time/time.h"
  16 #include "chrome/browser/browser_process.h"
  17 #include "chrome/browser/chrome_notification_types.h"
  18 #include "chrome/browser/invalidation/fake_invalidation_service.h"
  19 #include "chrome/browser/invalidation/profile_invalidation_provider_factory.h"
  20 #include "chrome/browser/policy/profile_policy_connector.h"
  21 #include "chrome/browser/policy/profile_policy_connector_factory.h"
  22 #include "chrome/browser/policy/test/local_policy_test_server.h"
  23 #include "chrome/browser/profiles/profile.h"
  24 #include "chrome/browser/ui/browser.h"
  25 #include "chrome/test/base/in_process_browser_test.h"
  26 #include "components/invalidation/impl/profile_invalidation_provider.h"
  27 #include "components/invalidation/public/invalidation.h"
  28 #include "components/invalidation/public/invalidation_service.h"
  29 #include "components/keyed_service/core/keyed_service.h"
  30 #include "components/policy/core/browser/browser_policy_connector.h"
  31 #include "components/policy/core/common/cloud/cloud_policy_client.h"
  32 #include "components/policy/core/common/cloud/cloud_policy_constants.h"
  33 #include "components/policy/core/common/cloud/mock_cloud_policy_client.h"
  34 #include "components/policy/core/common/external_data_fetcher.h"
  35 #include "components/policy/core/common/policy_map.h"
  36 #include "components/policy/core/common/policy_service.h"
  37 #include "components/policy/core/common/policy_switches.h"
  38 #include "components/policy/core/common/policy_test_utils.h"
  39 #include "content/public/browser/notification_service.h"
  40 #include "content/public/browser/notification_source.h"
  41 #include "content/public/test/test_utils.h"
  42 #include "net/url_request/url_request_context_getter.h"
  43 #include "policy/policy_constants.h"
  44 #include "policy/proto/chrome_settings.pb.h"
  45 #include "policy/proto/cloud_policy.pb.h"
  46 #include "policy/proto/device_management_backend.pb.h"
  47 #include "testing/gmock/include/gmock/gmock.h"
  48 #include "testing/gtest/include/gtest/gtest.h"
  49 #include "url/gurl.h"
  50
  51 #if defined(OS_CHROMEOS)
  52 #include "chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.h"
  53 #include "chrome/browser/chromeos/policy/user_cloud_policy_manager_factory_chromeos.h"
  54 #include "chromeos/chromeos_paths.h"
  55 #include "chromeos/dbus/cryptohome_client.h"
  56 #include "chromeos/login/user_names.h"
  57 #else
  58 #include "chrome/browser/policy/cloud/user_cloud_policy_manager_factory.h"
  59 #include "chrome/browser/signin/signin_manager_factory.h"
  60 #include "components/policy/core/common/cloud/user_cloud_policy_manager.h"
  61 #include "components/signin/core/browser/signin_manager.h"
  62 #endif
  63
  64 using testing::AnyNumber;
  65 using testing::InvokeWithoutArgs;
  66 using testing::Mock;
  67 using testing::Return;
  68 using testing::_;
  69
  70 namespace content {
  71 class BrowserContext;
  72 }
  73
  74 namespace em = enterprise_management;
  75
  76 namespace policy {
  77
  78 namespace {
  79
  80 scoped_ptr<KeyedService> BuildFakeProfileInvalidationProvider(
  81     content::BrowserContext* context) {
  82   return make_scoped_ptr(new invalidation::ProfileInvalidationProvider(
  83       scoped_ptr<invalidation::InvalidationService>(
  84           new invalidation::FakeInvalidationService)));
  85 }
  86
  87 #if !defined(OS_CHROMEOS)
  88 const char* GetTestGaiaId() {
  89   return "gaia-id-user@example.com";
  90 }
  91 #endif
  92
  93 const char* GetTestUser() {
  94 #if defined(OS_CHROMEOS)
  95   return chromeos::login::kStubUser;
  96 #else
  97   return "user@example.com";
  98 #endif
  99 }
 100
 101 std::string GetEmptyPolicy() {
 102   const char kEmptyPolicy[] =
 103       "{"
 104       "  \"%s\": {"
 105       "    \"mandatory\": {},"
 106       "    \"recommended\": {}"
 107       "  },"
 108       "  \"managed_users\": [ \"*\" ],"
 109       "  \"policy_user\": \"%s\","
 110       "  \"current_key_index\": 0"
 111       "}";
 112
 113   return base::StringPrintf(
 114       kEmptyPolicy, dm_protocol::kChromeUserPolicyType, GetTestUser());
 115 }
 116
 117 std::string GetTestPolicy(const char* homepage, int key_version) {
 118   const char kTestPolicy[] =
 119       "{"
 120       "  \"%s\": {"
 121       "    \"mandatory\": {"
 122       "      \"ShowHomeButton\": true,"
 123       "      \"RestoreOnStartup\": 4,"
 124       "      \"URLBlacklist\": [ \"dev.chromium.org\", \"youtube.com\" ],"
 125       "      \"MaxInvalidationFetchDelay\": 1000"
 126       "    },"
 127       "    \"recommended\": {"
 128       "      \"HomepageLocation\": \"%s\""
 129       "    }"
 130       "  },"
 131       "  \"managed_users\": [ \"*\" ],"
 132       "  \"policy_user\": \"%s\","
 133       "  \"current_key_index\": %d,"
 134       "  \"invalidation_source\": 16,"
 135       "  \"invalidation_name\": \"test_policy\""
 136       "}";
 137
 138   return base::StringPrintf(kTestPolicy,
 139                             dm_protocol::kChromeUserPolicyType,
 140                             homepage,
 141                             GetTestUser(),
 142                             key_version);
 143 }
 144
 145 void GetExpectedDefaultPolicy(PolicyMap* policy_map) {
 146 #if defined(OS_CHROMEOS)
 147   policy_map->Set(key::kChromeOsMultiProfileUserBehavior,
 148                   POLICY_LEVEL_MANDATORY,
 149                   POLICY_SCOPE_USER,
 150                   new base::StringValue("primary-only"),
 151                   NULL);
 152   policy_map->Set(key::kEasyUnlockAllowed,
 153                   POLICY_LEVEL_MANDATORY,
 154                   POLICY_SCOPE_USER,
 155                   new base::FundamentalValue(false),
 156                   NULL);
 157   policy_map->Set(key::kCaptivePortalAuthenticationIgnoresProxy,
 158                   POLICY_LEVEL_MANDATORY,
 159                   POLICY_SCOPE_USER,
 160                   new base::FundamentalValue(false),
 161                   NULL);
 162 #endif
 163 }
 164
 165 void GetExpectedTestPolicy(PolicyMap* expected, const char* homepage) {
 166   expected->Set(key::kShowHomeButton,
 167                 POLICY_LEVEL_MANDATORY,
 168                 POLICY_SCOPE_USER,
 169                 new base::FundamentalValue(true),
 170                 NULL);
 171   expected->Set(key::kRestoreOnStartup,
 172                 POLICY_LEVEL_MANDATORY,
 173                 POLICY_SCOPE_USER,
 174                 new base::FundamentalValue(4),
 175                 NULL);
 176   base::ListValue list;
 177   list.AppendString("dev.chromium.org");
 178   list.AppendString("youtube.com");
 179   expected->Set(
 180       key::kURLBlacklist, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
 181       list.DeepCopy(), NULL);
 182   expected->Set(key::kMaxInvalidationFetchDelay,
 183                 POLICY_LEVEL_MANDATORY,
 184                 POLICY_SCOPE_USER,
 185                 new base::FundamentalValue(1000),
 186                 NULL);
 187   expected->Set(key::kHomepageLocation,
 188                 POLICY_LEVEL_RECOMMENDED,
 189                 POLICY_SCOPE_USER,
 190                 new base::StringValue(homepage),
 191                 NULL);
 192 #if defined(OS_CHROMEOS)
 193   expected->Set(key::kChromeOsMultiProfileUserBehavior,
 194                 POLICY_LEVEL_MANDATORY,
 195                 POLICY_SCOPE_USER,
 196                 new base::StringValue("primary-only"),
 197                 NULL);
 198   expected->Set(key::kEasyUnlockAllowed,
 199                 POLICY_LEVEL_MANDATORY,
 200                 POLICY_SCOPE_USER,
 201                 new base::FundamentalValue(false),
 202                 NULL);
 203   expected->Set(key::kCaptivePortalAuthenticationIgnoresProxy,
 204                 POLICY_LEVEL_MANDATORY,
 205                 POLICY_SCOPE_USER,
 206                 new base::FundamentalValue(false),
 207                 NULL);
 208 #endif
 209 }
 210
 211 }  // namespace
 212
 213 // Tests the cloud policy stack(s).
 214 class CloudPolicyTest : public InProcessBrowserTest,
 215                         public PolicyService::Observer {
 216  protected:
 217   CloudPolicyTest() {}
 218   ~CloudPolicyTest() override {}
 219
 220   void SetUpInProcessBrowserTestFixture() override {
 221     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 222     ASSERT_NO_FATAL_FAILURE(SetServerPolicy(GetEmptyPolicy()));
 223
 224     test_server_.reset(new LocalPolicyTestServer(policy_file_path()));
 225     ASSERT_TRUE(test_server_->Start());
 226
 227     std::string url = test_server_->GetServiceURL().spec();
 228
 229     base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 230     command_line->AppendSwitchASCII(switches::kDeviceManagementUrl, url);
 231
 232     invalidation::ProfileInvalidationProviderFactory::GetInstance()->
 233         RegisterTestingFactory(BuildFakeProfileInvalidationProvider);
 234   }
 235
 236   void SetUpOnMainThread() override {
 237     ASSERT_TRUE(PolicyServiceIsEmpty(g_browser_process->policy_service()))
 238         << "Pre-existing policies in this machine will make this test fail.";
 239
 240     BrowserPolicyConnector* connector =
 241         g_browser_process->browser_policy_connector();
 242     connector->ScheduleServiceInitialization(0);
 243
 244 #if defined(OS_CHROMEOS)
 245     UserCloudPolicyManagerChromeOS* policy_manager =
 246         UserCloudPolicyManagerFactoryChromeOS::GetForProfile(
 247             browser()->profile());
 248     ASSERT_TRUE(policy_manager);
 249 #else
 250     // Mock a signed-in user. This is used by the UserCloudPolicyStore to pass
 251     // the username to the UserCloudPolicyValidator.
 252     SigninManager* signin_manager =
 253         SigninManagerFactory::GetForProfile(browser()->profile());
 254     ASSERT_TRUE(signin_manager);
 255     signin_manager->SetAuthenticatedAccountInfo(GetTestGaiaId(), GetTestUser());
 256
 257     UserCloudPolicyManager* policy_manager =
 258         UserCloudPolicyManagerFactory::GetForBrowserContext(
 259             browser()->profile());
 260     ASSERT_TRUE(policy_manager);
 261     policy_manager->Connect(
 262         g_browser_process->local_state(),
 263         g_browser_process->system_request_context(),
 264         UserCloudPolicyManager::CreateCloudPolicyClient(
 265             connector->device_management_service(),
 266             g_browser_process->system_request_context()).Pass());
 267 #endif  // defined(OS_CHROMEOS)
 268
 269     ASSERT_TRUE(policy_manager->core()->client());
 270     base::RunLoop run_loop;
 271     MockCloudPolicyClientObserver observer;
 272     EXPECT_CALL(observer, OnRegistrationStateChanged(_)).WillOnce(
 273         InvokeWithoutArgs(&run_loop, &base::RunLoop::Quit));
 274     policy_manager->core()->client()->AddObserver(&observer);
 275
 276     // Give a bogus OAuth token to the |policy_manager|. This should make its
 277     // CloudPolicyClient fetch the DMToken.
 278     ASSERT_FALSE(policy_manager->core()->client()->is_registered());
 279     em::DeviceRegisterRequest::Type registration_type =
 280 #if defined(OS_CHROMEOS)
 281         em::DeviceRegisterRequest::USER;
 282 #else
 283         em::DeviceRegisterRequest::BROWSER;
 284 #endif
 285     policy_manager->core()->client()->Register(
 286         registration_type, em::DeviceRegisterRequest::FLAVOR_USER_REGISTRATION,
 287         "bogus", std::string(), std::string(), std::string());
 288     run_loop.Run();
 289     Mock::VerifyAndClearExpectations(&observer);
 290     policy_manager->core()->client()->RemoveObserver(&observer);
 291     EXPECT_TRUE(policy_manager->core()->client()->is_registered());
 292
 293 #if defined(OS_CHROMEOS)
 294     // Get the path to the user policy key file.
 295     base::FilePath user_policy_key_dir;
 296     ASSERT_TRUE(
 297         PathService::Get(chromeos::DIR_USER_POLICY_KEYS, &user_policy_key_dir));
 298     std::string sanitized_username =
 299         chromeos::CryptohomeClient::GetStubSanitizedUsername(GetTestUser());
 300     user_policy_key_file_ = user_policy_key_dir.AppendASCII(sanitized_username)
 301                                                .AppendASCII("policy.pub");
 302 #endif
 303   }
 304
 305   PolicyService* GetPolicyService() {
 306     ProfilePolicyConnector* profile_connector =
 307         ProfilePolicyConnectorFactory::GetForBrowserContext(
 308             browser()->profile());
 309     return profile_connector->policy_service();
 310   }
 311
 312   invalidation::FakeInvalidationService* GetInvalidationService() {
 313     return static_cast<invalidation::FakeInvalidationService*>(
 314         static_cast<invalidation::ProfileInvalidationProvider*>(
 315             invalidation::ProfileInvalidationProviderFactory::GetInstance()->
 316                 GetForProfile(browser()->profile()))->GetInvalidationService());
 317   }
 318
 319   void SetServerPolicy(const std::string& policy) {
 320     int result = base::WriteFile(policy_file_path(), policy.data(),
 321                                  policy.size());
 322     ASSERT_EQ(static_cast<int>(policy.size()), result);
 323   }
 324
 325   base::FilePath policy_file_path() const {
 326     return temp_dir_.path().AppendASCII("policy.json");
 327   }
 328
 329   void OnPolicyUpdated(const PolicyNamespace& ns,
 330                        const PolicyMap& previous,
 331                        const PolicyMap& current) override {
 332     if (!on_policy_updated_.is_null()) {
 333       on_policy_updated_.Run();
 334       on_policy_updated_.Reset();
 335     }
 336   }
 337
 338   void OnPolicyServiceInitialized(PolicyDomain domain) override {}
 339
 340   base::ScopedTempDir temp_dir_;
 341   scoped_ptr<LocalPolicyTestServer> test_server_;
 342   base::FilePath user_policy_key_file_;
 343   base::Closure on_policy_updated_;
 344 };
 345
 346 IN_PROC_BROWSER_TEST_F(CloudPolicyTest, FetchPolicy) {
 347   PolicyService* policy_service = GetPolicyService();
 348   {
 349     base::RunLoop run_loop;
 350     // This does the initial fetch and stores the initial key.
 351     policy_service->RefreshPolicies(run_loop.QuitClosure());
 352     run_loop.Run();
 353   }
 354
 355   PolicyMap default_policy;
 356   GetExpectedDefaultPolicy(&default_policy);
 357   EXPECT_TRUE(default_policy.Equals(policy_service->GetPolicies(
 358       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))));
 359
 360   ASSERT_NO_FATAL_FAILURE(SetServerPolicy(GetTestPolicy("google.com", 0)));
 361   PolicyMap expected;
 362   GetExpectedTestPolicy(&expected, "google.com");
 363   {
 364     base::RunLoop run_loop;
 365     // This fetches the new policies, using the same key.
 366     policy_service->RefreshPolicies(run_loop.QuitClosure());
 367     run_loop.Run();
 368   }
 369   EXPECT_TRUE(expected.Equals(policy_service->GetPolicies(
 370       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))));
 371 }
 372
 373 IN_PROC_BROWSER_TEST_F(CloudPolicyTest, InvalidatePolicy) {
 374   PolicyService* policy_service = GetPolicyService();
 375   policy_service->AddObserver(POLICY_DOMAIN_CHROME, this);
 376
 377   // Perform the initial fetch.
 378   ASSERT_NO_FATAL_FAILURE(SetServerPolicy(GetTestPolicy("google.com", 0)));
 379   {
 380     base::RunLoop run_loop;
 381     policy_service->RefreshPolicies(run_loop.QuitClosure());
 382     run_loop.Run();
 383   }
 384
 385   // Update the homepage in the policy and trigger an invalidation.
 386   ASSERT_NO_FATAL_FAILURE(SetServerPolicy(GetTestPolicy("youtube.com", 0)));
 387   base::TimeDelta now =
 388       base::Time::NowFromSystemTime() - base::Time::UnixEpoch();
 389   GetInvalidationService()->EmitInvalidationForTest(
 390       syncer::Invalidation::Init(
 391           invalidation::ObjectId(16, "test_policy"),
 392           now.InMicroseconds() /* version */,
 393           "payload"));
 394   {
 395     base::RunLoop run_loop;
 396     on_policy_updated_ = run_loop.QuitClosure();
 397     run_loop.Run();
 398   }
 399
 400   // Check that the updated policy was fetched.
 401   PolicyMap expected;
 402   GetExpectedTestPolicy(&expected, "youtube.com");
 403   EXPECT_TRUE(expected.Equals(policy_service->GetPolicies(
 404       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))));
 405
 406   policy_service->RemoveObserver(POLICY_DOMAIN_CHROME, this);
 407 }
 408
 409 #if defined(OS_CHROMEOS)
 410 IN_PROC_BROWSER_TEST_F(CloudPolicyTest, FetchPolicyWithRotatedKey) {
 411   PolicyService* policy_service = GetPolicyService();
 412   {
 413     base::RunLoop run_loop;
 414     // This does the initial fetch and stores the initial key.
 415     policy_service->RefreshPolicies(run_loop.QuitClosure());
 416     run_loop.Run();
 417   }
 418
 419   // Read the initial key.
 420   std::string initial_key;
 421   ASSERT_TRUE(base::ReadFileToString(user_policy_key_file_, &initial_key));
 422
 423   PolicyMap default_policy;
 424   GetExpectedDefaultPolicy(&default_policy);
 425   EXPECT_TRUE(default_policy.Equals(policy_service->GetPolicies(
 426       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))));
 427
 428   // Set the new policies and a new key at the server.
 429   ASSERT_NO_FATAL_FAILURE(SetServerPolicy(GetTestPolicy("google.com", 1)));
 430   PolicyMap expected;
 431   GetExpectedTestPolicy(&expected, "google.com");
 432   {
 433     base::RunLoop run_loop;
 434     // This fetches the new policies and does a key rotation.
 435     policy_service->RefreshPolicies(run_loop.QuitClosure());
 436     run_loop.Run();
 437   }
 438   EXPECT_TRUE(expected.Equals(policy_service->GetPolicies(
 439       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))));
 440
 441   // Verify that the key was rotated.
 442   std::string rotated_key;
 443   ASSERT_TRUE(base::ReadFileToString(user_policy_key_file_, &rotated_key));
 444   EXPECT_NE(rotated_key, initial_key);
 445
 446   // Another refresh using the same key won't rotate it again.
 447   {
 448     base::RunLoop run_loop;
 449     policy_service->RefreshPolicies(run_loop.QuitClosure());
 450     run_loop.Run();
 451   }
 452   EXPECT_TRUE(expected.Equals(policy_service->GetPolicies(
 453       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))));
 454   std::string current_key;
 455   ASSERT_TRUE(base::ReadFileToString(user_policy_key_file_, &current_key));
 456   EXPECT_EQ(rotated_key, current_key);
 457 }
 458 #endif
 459
 460 TEST(CloudPolicyProtoTest, VerifyProtobufEquivalence) {
 461   // There are 2 protobufs that can be used for user cloud policy:
 462   // cloud_policy.proto and chrome_settings.proto. chrome_settings.proto is the
 463   // version used by the server, but generates one proto message per policy; to
 464   // save binary size on the client, the other version shares proto messages for
 465   // policies of the same type. They generate the same bytes on the wire though,
 466   // so they are compatible. This test verifies that that stays true.
 467
 468   // Build a ChromeSettingsProto message with one policy of each supported type.
 469   em::ChromeSettingsProto chrome_settings;
 470   chrome_settings.mutable_homepagelocation()->set_homepagelocation(
 471       "chromium.org");
 472   chrome_settings.mutable_showhomebutton()->set_showhomebutton(true);
 473   chrome_settings.mutable_restoreonstartup()->set_restoreonstartup(4);
 474   em::StringList* list =
 475       chrome_settings.mutable_disabledschemes()->mutable_disabledschemes();
 476   list->add_entries("ftp");
 477   list->add_entries("mailto");
 478   // Try explicitly setting a policy mode too.
 479   chrome_settings.mutable_disablespdy()->set_disablespdy(false);
 480   chrome_settings.mutable_disablespdy()->mutable_policy_options()->set_mode(
 481       em::PolicyOptions::MANDATORY);
 482   chrome_settings.mutable_syncdisabled()->set_syncdisabled(true);
 483   chrome_settings.mutable_syncdisabled()->mutable_policy_options()->set_mode(
 484       em::PolicyOptions::RECOMMENDED);
 485
 486   // Build an equivalent CloudPolicySettings message.
 487   em::CloudPolicySettings cloud_policy;
 488   cloud_policy.mutable_homepagelocation()->set_value("chromium.org");
 489   cloud_policy.mutable_showhomebutton()->set_value(true);
 490   cloud_policy.mutable_restoreonstartup()->set_value(4);
 491   list = cloud_policy.mutable_disabledschemes()->mutable_value();
 492   list->add_entries("ftp");
 493   list->add_entries("mailto");
 494   cloud_policy.mutable_disablespdy()->set_value(false);
 495   cloud_policy.mutable_disablespdy()->mutable_policy_options()->set_mode(
 496       em::PolicyOptions::MANDATORY);
 497   cloud_policy.mutable_syncdisabled()->set_value(true);
 498   cloud_policy.mutable_syncdisabled()->mutable_policy_options()->set_mode(
 499       em::PolicyOptions::RECOMMENDED);
 500
 501   // They should now serialize to the same bytes.
 502   std::string chrome_settings_serialized;
 503   std::string cloud_policy_serialized;
 504   ASSERT_TRUE(chrome_settings.SerializeToString(&chrome_settings_serialized));
 505   ASSERT_TRUE(cloud_policy.SerializeToString(&cloud_policy_serialized));
 506   EXPECT_EQ(chrome_settings_serialized, cloud_policy_serialized);
 507 }
 508
 509 }  // namespace policy