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