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