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_service.h"
  27 #include "components/invalidation/profile_invalidation_provider.h"
  28 #include "components/keyed_service/core/keyed_service.h"
  29 #include "components/policy/core/browser/browser_policy_connector.h"
  30 #include "components/policy/core/common/cloud/cloud_policy_client.h"
  31 #include "components/policy/core/common/cloud/cloud_policy_constants.h"
  32 #include "components/policy/core/common/cloud/mock_cloud_policy_client.h"
  33 #include "components/policy/core/common/external_data_fetcher.h"
  34 #include "components/policy/core/common/policy_map.h"
  35 #include "components/policy/core/common/policy_service.h"
  36 #include "components/policy/core/common/policy_switches.h"
  37 #include "components/policy/core/common/policy_test_utils.h"
  38 #include "content/public/browser/notification_service.h"
  39 #include "content/public/browser/notification_source.h"
  40 #include "content/public/test/test_utils.h"
  41 #include "net/url_request/url_request_context_getter.h"
  42 #include "policy/policy_constants.h"
  43 #include "policy/proto/chrome_settings.pb.h"
  44 #include "policy/proto/cloud_policy.pb.h"
  45 #include "sync/internal_api/public/base/invalidation.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/login/users/user_manager.h"
  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 #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::UserManager::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(
 141       key::kChromeOsMultiProfileUserBehavior, POLICY_LEVEL_MANDATORY,
 142       POLICY_SCOPE_USER, base::Value::CreateStringValue("primary-only"), NULL);
 143 #endif
 144 }
 145
 146 void GetExpectedTestPolicy(PolicyMap* expected, const char* homepage) {
 147   expected->Set(key::kShowHomeButton, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
 148                 base::Value::CreateBooleanValue(true), NULL);
 149   expected->Set(key::kRestoreOnStartup, POLICY_LEVEL_MANDATORY,
 150                 POLICY_SCOPE_USER, base::Value::CreateIntegerValue(4), NULL);
 151   base::ListValue list;
 152   list.AppendString("dev.chromium.org");
 153   list.AppendString("youtube.com");
 154   expected->Set(
 155       key::kURLBlacklist, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
 156       list.DeepCopy(), NULL);
 157   expected->Set(
 158       key::kMaxInvalidationFetchDelay, POLICY_LEVEL_MANDATORY,
 159       POLICY_SCOPE_USER, base::Value::CreateIntegerValue(1000), NULL);
 160   expected->Set(
 161       key::kHomepageLocation, POLICY_LEVEL_RECOMMENDED,
 162       POLICY_SCOPE_USER, base::Value::CreateStringValue(homepage), NULL);
 163 #if defined(OS_CHROMEOS)
 164   expected->Set(
 165       key::kChromeOsMultiProfileUserBehavior, POLICY_LEVEL_MANDATORY,
 166       POLICY_SCOPE_USER, base::Value::CreateStringValue("primary-only"), NULL);
 167 #endif
 168 }
 169
 170 }  // namespace
 171
 172 // Tests the cloud policy stack(s).
 173 class CloudPolicyTest : public InProcessBrowserTest,
 174                         public PolicyService::Observer {
 175  protected:
 176   CloudPolicyTest() {}
 177   virtual ~CloudPolicyTest() {}
 178
 179   virtual void SetUpInProcessBrowserTestFixture() OVERRIDE {
 180     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 181     ASSERT_NO_FATAL_FAILURE(SetServerPolicy(GetEmptyPolicy()));
 182
 183     test_server_.reset(new LocalPolicyTestServer(policy_file_path()));
 184     ASSERT_TRUE(test_server_->Start());
 185
 186     std::string url = test_server_->GetServiceURL().spec();
 187
 188     CommandLine* command_line = CommandLine::ForCurrentProcess();
 189     command_line->AppendSwitchASCII(switches::kDeviceManagementUrl, url);
 190
 191     invalidation::ProfileInvalidationProviderFactory::GetInstance()->
 192         RegisterTestingFactory(BuildFakeProfileInvalidationProvider);
 193   }
 194
 195   virtual void SetUpOnMainThread() OVERRIDE {
 196     ASSERT_TRUE(PolicyServiceIsEmpty(g_browser_process->policy_service()))
 197         << "Pre-existing policies in this machine will make this test fail.";
 198
 199     BrowserPolicyConnector* connector =
 200         g_browser_process->browser_policy_connector();
 201     connector->ScheduleServiceInitialization(0);
 202
 203 #if defined(OS_CHROMEOS)
 204     UserCloudPolicyManagerChromeOS* policy_manager =
 205         UserCloudPolicyManagerFactoryChromeOS::GetForProfile(
 206             browser()->profile());
 207     ASSERT_TRUE(policy_manager);
 208 #else
 209     // Mock a signed-in user. This is used by the UserCloudPolicyStore to pass
 210     // the username to the UserCloudPolicyValidator.
 211     SigninManager* signin_manager =
 212         SigninManagerFactory::GetForProfile(browser()->profile());
 213     ASSERT_TRUE(signin_manager);
 214     signin_manager->SetAuthenticatedUsername(GetTestUser());
 215
 216     UserCloudPolicyManager* policy_manager =
 217         UserCloudPolicyManagerFactory::GetForBrowserContext(
 218             browser()->profile());
 219     ASSERT_TRUE(policy_manager);
 220     policy_manager->Connect(
 221         g_browser_process->local_state(),
 222         g_browser_process->system_request_context(),
 223         UserCloudPolicyManager::CreateCloudPolicyClient(
 224             connector->device_management_service(),
 225             g_browser_process->system_request_context()).Pass());
 226 #endif  // defined(OS_CHROMEOS)
 227
 228     ASSERT_TRUE(policy_manager->core()->client());
 229     base::RunLoop run_loop;
 230     MockCloudPolicyClientObserver observer;
 231     EXPECT_CALL(observer, OnRegistrationStateChanged(_)).WillOnce(
 232         InvokeWithoutArgs(&run_loop, &base::RunLoop::Quit));
 233     policy_manager->core()->client()->AddObserver(&observer);
 234
 235     // Give a bogus OAuth token to the |policy_manager|. This should make its
 236     // CloudPolicyClient fetch the DMToken.
 237     ASSERT_FALSE(policy_manager->core()->client()->is_registered());
 238     em::DeviceRegisterRequest::Type registration_type =
 239 #if defined(OS_CHROMEOS)
 240         em::DeviceRegisterRequest::USER;
 241 #else
 242         em::DeviceRegisterRequest::BROWSER;
 243 #endif
 244     policy_manager->core()->client()->Register(
 245         registration_type, "bogus", std::string(), false, std::string(),
 246         std::string());
 247     run_loop.Run();
 248     Mock::VerifyAndClearExpectations(&observer);
 249     policy_manager->core()->client()->RemoveObserver(&observer);
 250     EXPECT_TRUE(policy_manager->core()->client()->is_registered());
 251
 252 #if defined(OS_CHROMEOS)
 253     // Get the path to the user policy key file.
 254     base::FilePath user_policy_key_dir;
 255     ASSERT_TRUE(
 256         PathService::Get(chromeos::DIR_USER_POLICY_KEYS, &user_policy_key_dir));
 257     std::string sanitized_username =
 258         chromeos::CryptohomeClient::GetStubSanitizedUsername(GetTestUser());
 259     user_policy_key_file_ = user_policy_key_dir.AppendASCII(sanitized_username)
 260                                                .AppendASCII("policy.pub");
 261 #endif
 262   }
 263
 264   PolicyService* GetPolicyService() {
 265     ProfilePolicyConnector* profile_connector =
 266         ProfilePolicyConnectorFactory::GetForProfile(browser()->profile());
 267     return profile_connector->policy_service();
 268   }
 269
 270   invalidation::FakeInvalidationService* GetInvalidationService() {
 271     return static_cast<invalidation::FakeInvalidationService*>(
 272         static_cast<invalidation::ProfileInvalidationProvider*>(
 273             invalidation::ProfileInvalidationProviderFactory::GetInstance()->
 274                 GetForProfile(browser()->profile()))->GetInvalidationService());
 275   }
 276
 277   void SetServerPolicy(const std::string& policy) {
 278     int result = base::WriteFile(policy_file_path(), policy.data(),
 279                                  policy.size());
 280     ASSERT_EQ(static_cast<int>(policy.size()), result);
 281   }
 282
 283   base::FilePath policy_file_path() const {
 284     return temp_dir_.path().AppendASCII("policy.json");
 285   }
 286
 287   virtual void OnPolicyUpdated(const PolicyNamespace& ns,
 288                                const PolicyMap& previous,
 289                                const PolicyMap& current) OVERRIDE {
 290     if (!on_policy_updated_.is_null()) {
 291       on_policy_updated_.Run();
 292       on_policy_updated_.Reset();
 293     }
 294   }
 295
 296   virtual void OnPolicyServiceInitialized(PolicyDomain domain) OVERRIDE {}
 297
 298   base::ScopedTempDir temp_dir_;
 299   scoped_ptr<LocalPolicyTestServer> test_server_;
 300   base::FilePath user_policy_key_file_;
 301   base::Closure on_policy_updated_;
 302 };
 303
 304 IN_PROC_BROWSER_TEST_F(CloudPolicyTest, FetchPolicy) {
 305   PolicyService* policy_service = GetPolicyService();
 306   {
 307     base::RunLoop run_loop;
 308     // This does the initial fetch and stores the initial key.
 309     policy_service->RefreshPolicies(run_loop.QuitClosure());
 310     run_loop.Run();
 311   }
 312
 313   PolicyMap default_policy;
 314   GetExpectedDefaultPolicy(&default_policy);
 315   EXPECT_TRUE(default_policy.Equals(policy_service->GetPolicies(
 316       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))));
 317
 318   ASSERT_NO_FATAL_FAILURE(SetServerPolicy(GetTestPolicy("google.com", 0)));
 319   PolicyMap expected;
 320   GetExpectedTestPolicy(&expected, "google.com");
 321   {
 322     base::RunLoop run_loop;
 323     // This fetches the new policies, using the same key.
 324     policy_service->RefreshPolicies(run_loop.QuitClosure());
 325     run_loop.Run();
 326   }
 327   EXPECT_TRUE(expected.Equals(policy_service->GetPolicies(
 328       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))));
 329 }
 330
 331 IN_PROC_BROWSER_TEST_F(CloudPolicyTest, InvalidatePolicy) {
 332   PolicyService* policy_service = GetPolicyService();
 333   policy_service->AddObserver(POLICY_DOMAIN_CHROME, this);
 334
 335   // Perform the initial fetch.
 336   ASSERT_NO_FATAL_FAILURE(SetServerPolicy(GetTestPolicy("google.com", 0)));
 337   {
 338     base::RunLoop run_loop;
 339     policy_service->RefreshPolicies(run_loop.QuitClosure());
 340     run_loop.Run();
 341   }
 342
 343   // Update the homepage in the policy and trigger an invalidation.
 344   ASSERT_NO_FATAL_FAILURE(SetServerPolicy(GetTestPolicy("youtube.com", 0)));
 345   base::TimeDelta now =
 346       base::Time::NowFromSystemTime() - base::Time::UnixEpoch();
 347   GetInvalidationService()->EmitInvalidationForTest(
 348       syncer::Invalidation::Init(
 349           invalidation::ObjectId(16, "test_policy"),
 350           now.InMicroseconds() /* version */,
 351           "payload"));
 352   {
 353     base::RunLoop run_loop;
 354     on_policy_updated_ = run_loop.QuitClosure();
 355     run_loop.Run();
 356   }
 357
 358   // Check that the updated policy was fetched.
 359   PolicyMap expected;
 360   GetExpectedTestPolicy(&expected, "youtube.com");
 361   EXPECT_TRUE(expected.Equals(policy_service->GetPolicies(
 362       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))));
 363
 364   policy_service->RemoveObserver(POLICY_DOMAIN_CHROME, this);
 365 }
 366
 367 #if defined(OS_CHROMEOS)
 368 IN_PROC_BROWSER_TEST_F(CloudPolicyTest, FetchPolicyWithRotatedKey) {
 369   PolicyService* policy_service = GetPolicyService();
 370   {
 371     base::RunLoop run_loop;
 372     // This does the initial fetch and stores the initial key.
 373     policy_service->RefreshPolicies(run_loop.QuitClosure());
 374     run_loop.Run();
 375   }
 376
 377   // Read the initial key.
 378   std::string initial_key;
 379   ASSERT_TRUE(base::ReadFileToString(user_policy_key_file_, &initial_key));
 380
 381   PolicyMap default_policy;
 382   GetExpectedDefaultPolicy(&default_policy);
 383   EXPECT_TRUE(default_policy.Equals(policy_service->GetPolicies(
 384       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))));
 385
 386   // Set the new policies and a new key at the server.
 387   ASSERT_NO_FATAL_FAILURE(SetServerPolicy(GetTestPolicy("google.com", 1)));
 388   PolicyMap expected;
 389   GetExpectedTestPolicy(&expected, "google.com");
 390   {
 391     base::RunLoop run_loop;
 392     // This fetches the new policies and does a key rotation.
 393     policy_service->RefreshPolicies(run_loop.QuitClosure());
 394     run_loop.Run();
 395   }
 396   EXPECT_TRUE(expected.Equals(policy_service->GetPolicies(
 397       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))));
 398
 399   // Verify that the key was rotated.
 400   std::string rotated_key;
 401   ASSERT_TRUE(base::ReadFileToString(user_policy_key_file_, &rotated_key));
 402   EXPECT_NE(rotated_key, initial_key);
 403
 404   // Another refresh using the same key won't rotate it again.
 405   {
 406     base::RunLoop run_loop;
 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   std::string current_key;
 413   ASSERT_TRUE(base::ReadFileToString(user_policy_key_file_, &current_key));
 414   EXPECT_EQ(rotated_key, current_key);
 415 }
 416 #endif
 417
 418 TEST(CloudPolicyProtoTest, VerifyProtobufEquivalence) {
 419   // There are 2 protobufs that can be used for user cloud policy:
 420   // cloud_policy.proto and chrome_settings.proto. chrome_settings.proto is the
 421   // version used by the server, but generates one proto message per policy; to
 422   // save binary size on the client, the other version shares proto messages for
 423   // policies of the same type. They generate the same bytes on the wire though,
 424   // so they are compatible. This test verifies that that stays true.
 425
 426   // Build a ChromeSettingsProto message with one policy of each supported type.
 427   em::ChromeSettingsProto chrome_settings;
 428   chrome_settings.mutable_homepagelocation()->set_homepagelocation(
 429       "chromium.org");
 430   chrome_settings.mutable_showhomebutton()->set_showhomebutton(true);
 431   chrome_settings.mutable_restoreonstartup()->set_restoreonstartup(4);
 432   em::StringList* list =
 433       chrome_settings.mutable_disabledschemes()->mutable_disabledschemes();
 434   list->add_entries("ftp");
 435   list->add_entries("mailto");
 436   // Try explicitly setting a policy mode too.
 437   chrome_settings.mutable_disablespdy()->set_disablespdy(false);
 438   chrome_settings.mutable_disablespdy()->mutable_policy_options()->set_mode(
 439       em::PolicyOptions::MANDATORY);
 440   chrome_settings.mutable_syncdisabled()->set_syncdisabled(true);
 441   chrome_settings.mutable_syncdisabled()->mutable_policy_options()->set_mode(
 442       em::PolicyOptions::RECOMMENDED);
 443
 444   // Build an equivalent CloudPolicySettings message.
 445   em::CloudPolicySettings cloud_policy;
 446   cloud_policy.mutable_homepagelocation()->set_value("chromium.org");
 447   cloud_policy.mutable_showhomebutton()->set_value(true);
 448   cloud_policy.mutable_restoreonstartup()->set_value(4);
 449   list = cloud_policy.mutable_disabledschemes()->mutable_value();
 450   list->add_entries("ftp");
 451   list->add_entries("mailto");
 452   cloud_policy.mutable_disablespdy()->set_value(false);
 453   cloud_policy.mutable_disablespdy()->mutable_policy_options()->set_mode(
 454       em::PolicyOptions::MANDATORY);
 455   cloud_policy.mutable_syncdisabled()->set_value(true);
 456   cloud_policy.mutable_syncdisabled()->mutable_policy_options()->set_mode(
 457       em::PolicyOptions::RECOMMENDED);
 458
 459   // They should now serialize to the same bytes.
 460   std::string chrome_settings_serialized;
 461   std::string cloud_policy_serialized;
 462   ASSERT_TRUE(chrome_settings.SerializeToString(&chrome_settings_serialized));
 463   ASSERT_TRUE(cloud_policy.SerializeToString(&cloud_policy_serialized));
 464   EXPECT_EQ(chrome_settings_serialized, cloud_policy_serialized);
 465 }
 466
 467 }  // namespace policy