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