chrome/browser/chromeos/extensions/device_local_account_external_policy_loader_unittest.cc

   1 // Copyright 2013 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 "chrome/browser/chromeos/extensions/device_local_account_external_policy_loader.h"
   6
   7 #include <string>
   8
   9 #include "base/callback.h"
  10 #include "base/files/file_util.h"
  11 #include "base/files/scoped_temp_dir.h"
  12 #include "base/message_loop/message_loop.h"
  13 #include "base/path_service.h"
  14 #include "base/run_loop.h"
  15 #include "base/strings/stringprintf.h"
  16 #include "base/thread_task_runner_handle.h"
  17 #include "base/values.h"
  18 #include "base/version.h"
  19 #include "chrome/browser/extensions/external_provider_impl.h"
  20 #include "chrome/common/chrome_paths.h"
  21 #include "chrome/test/base/testing_browser_process.h"
  22 #include "components/policy/core/common/cloud/mock_cloud_policy_store.h"
  23 #include "components/policy/core/common/policy_map.h"
  24 #include "components/policy/core/common/policy_types.h"
  25 #include "content/public/browser/notification_service.h"
  26 #include "content/public/browser/notification_source.h"
  27 #include "content/public/test/test_browser_thread_bundle.h"
  28 #include "content/public/test/test_utils.h"
  29 #include "extensions/browser/external_provider_interface.h"
  30 #include "extensions/browser/notification_types.h"
  31 #include "extensions/browser/updater/extension_downloader.h"
  32 #include "extensions/common/extension.h"
  33 #include "extensions/common/extension_urls.h"
  34 #include "extensions/common/manifest.h"
  35 #include "net/url_request/test_url_fetcher_factory.h"
  36 #include "net/url_request/url_fetcher_delegate.h"
  37 #include "net/url_request/url_request_context_getter.h"
  38 #include "net/url_request/url_request_test_util.h"
  39 #include "policy/policy_constants.h"
  40 #include "testing/gmock/include/gmock/gmock.h"
  41 #include "testing/gtest/include/gtest/gtest.h"
  42 #include "url/gurl.h"
  43
  44 #if defined(OS_CHROMEOS)
  45 #include "chrome/browser/chromeos/settings/cros_settings.h"
  46 #include "chrome/browser/chromeos/settings/device_settings_service.h"
  47 #endif  // defined(OS_CHROMEOS)
  48
  49 using ::testing::InvokeWithoutArgs;
  50 using ::testing::Mock;
  51 using ::testing::_;
  52
  53 namespace chromeos {
  54
  55 namespace {
  56
  57 const char kCacheDir[] = "cache";
  58 const char kExtensionId[] = "ldnnhddmnhbkjipkidpdiheffobcpfmf";
  59 const char kExtensionUpdateManifest[] =
  60     "extensions/good_v1_update_manifest.xml";
  61 const char kExtensionCRXSourceDir[] = "extensions";
  62 const char kExtensionCRXFile[] = "good.crx";
  63 const char kExtensionCRXVersion[] = "1.0.0.0";
  64
  65 class MockExternalPolicyProviderVisitor
  66     : public extensions::ExternalProviderInterface::VisitorInterface {
  67  public:
  68   MockExternalPolicyProviderVisitor();
  69   virtual ~MockExternalPolicyProviderVisitor();
  70
  71   MOCK_METHOD7(OnExternalExtensionFileFound,
  72                bool(const std::string&,
  73                     const base::Version*,
  74                     const base::FilePath&,
  75                     extensions::Manifest::Location,
  76                     int,
  77                     bool,
  78                     bool));
  79   MOCK_METHOD6(OnExternalExtensionUpdateUrlFound,
  80                bool(const std::string&,
  81                     const std::string&,
  82                     const GURL&,
  83                     extensions::Manifest::Location,
  84                     int,
  85                     bool));
  86   MOCK_METHOD1(OnExternalProviderReady,
  87                void(const extensions::ExternalProviderInterface* provider));
  88
  89  private:
  90   DISALLOW_COPY_AND_ASSIGN(MockExternalPolicyProviderVisitor);
  91 };
  92
  93 MockExternalPolicyProviderVisitor::MockExternalPolicyProviderVisitor() {
  94 }
  95
  96 MockExternalPolicyProviderVisitor::~MockExternalPolicyProviderVisitor() {
  97 }
  98
  99 }  // namespace
 100
 101 class DeviceLocalAccountExternalPolicyLoaderTest : public testing::Test {
 102  protected:
 103   DeviceLocalAccountExternalPolicyLoaderTest();
 104   ~DeviceLocalAccountExternalPolicyLoaderTest() override;
 105
 106   void SetUp() override;
 107   void TearDown() override;
 108
 109   void VerifyAndResetVisitorCallExpectations();
 110   void SetForceInstallListPolicy();
 111
 112   content::TestBrowserThreadBundle thread_bundle_;
 113   base::ScopedTempDir temp_dir_;
 114   base::FilePath cache_dir_;
 115   policy::MockCloudPolicyStore store_;
 116   scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
 117   base::FilePath test_dir_;
 118
 119   scoped_refptr<DeviceLocalAccountExternalPolicyLoader> loader_;
 120   MockExternalPolicyProviderVisitor visitor_;
 121   scoped_ptr<extensions::ExternalProviderImpl> provider_;
 122
 123   content::InProcessUtilityThreadHelper in_process_utility_thread_helper_;
 124
 125 #if defined(OS_CHROMEOS)
 126   chromeos::ScopedTestDeviceSettingsService test_device_settings_service_;
 127   chromeos::ScopedTestCrosSettings test_cros_settings_;
 128 #endif // defined(OS_CHROMEOS)
 129 };
 130
 131 DeviceLocalAccountExternalPolicyLoaderTest::
 132     DeviceLocalAccountExternalPolicyLoaderTest()
 133     : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP) {
 134 }
 135
 136 DeviceLocalAccountExternalPolicyLoaderTest::
 137     ~DeviceLocalAccountExternalPolicyLoaderTest() {
 138 }
 139
 140 void DeviceLocalAccountExternalPolicyLoaderTest::SetUp() {
 141   ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 142   cache_dir_ = temp_dir_.path().Append(kCacheDir);
 143   ASSERT_TRUE(base::CreateDirectoryAndGetError(cache_dir_, NULL));
 144   request_context_getter_ =
 145       new net::TestURLRequestContextGetter(base::ThreadTaskRunnerHandle::Get());
 146   TestingBrowserProcess::GetGlobal()->SetSystemRequestContext(
 147       request_context_getter_.get());
 148   ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &test_dir_));
 149
 150   loader_ = new DeviceLocalAccountExternalPolicyLoader(&store_, cache_dir_);
 151   provider_.reset(new extensions::ExternalProviderImpl(
 152       &visitor_,
 153       loader_,
 154       NULL,
 155       extensions::Manifest::EXTERNAL_POLICY,
 156       extensions::Manifest::EXTERNAL_POLICY_DOWNLOAD,
 157       extensions::Extension::NO_FLAGS));
 158
 159   VerifyAndResetVisitorCallExpectations();
 160 }
 161
 162 void DeviceLocalAccountExternalPolicyLoaderTest::TearDown() {
 163   TestingBrowserProcess::GetGlobal()->SetSystemRequestContext(NULL);
 164 }
 165
 166 void DeviceLocalAccountExternalPolicyLoaderTest::
 167     VerifyAndResetVisitorCallExpectations() {
 168   Mock::VerifyAndClearExpectations(&visitor_);
 169   EXPECT_CALL(visitor_, OnExternalExtensionFileFound(_, _, _, _, _, _, _))
 170       .Times(0);
 171   EXPECT_CALL(visitor_, OnExternalExtensionUpdateUrlFound(_, _, _, _, _, _))
 172       .Times(0);
 173   EXPECT_CALL(visitor_, OnExternalProviderReady(_))
 174       .Times(0);
 175 }
 176
 177 void DeviceLocalAccountExternalPolicyLoaderTest::SetForceInstallListPolicy() {
 178   scoped_ptr<base::ListValue> forcelist(new base::ListValue);
 179   forcelist->AppendString("invalid");
 180   forcelist->AppendString(base::StringPrintf(
 181       "%s;%s",
 182       kExtensionId,
 183       extension_urls::GetWebstoreUpdateUrl().spec().c_str()));
 184   store_.policy_map_.Set(policy::key::kExtensionInstallForcelist,
 185                          policy::POLICY_LEVEL_MANDATORY,
 186                          policy::POLICY_SCOPE_USER,
 187                          forcelist.release(),
 188                          NULL);
 189   store_.NotifyStoreLoaded();
 190 }
 191
 192 // Verifies that when the cache is not explicitly started, the loader does not
 193 // serve any extensions, even if the force-install list policy is set or a load
 194 // is manually requested.
 195 TEST_F(DeviceLocalAccountExternalPolicyLoaderTest, CacheNotStarted) {
 196   // Set the force-install list policy.
 197   SetForceInstallListPolicy();
 198
 199   // Manually request a load.
 200   loader_->StartLoading();
 201
 202   EXPECT_FALSE(loader_->IsCacheRunning());
 203   EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 204 }
 205
 206 // Verifies that the cache can be started and stopped correctly.
 207 TEST_F(DeviceLocalAccountExternalPolicyLoaderTest, ForceInstallListEmpty) {
 208   // Set an empty force-install list policy.
 209   store_.NotifyStoreLoaded();
 210
 211   // Start the cache. Verify that the loader announces an empty extension list.
 212   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 213       .Times(1);
 214   loader_->StartCache(base::ThreadTaskRunnerHandle::Get());
 215   base::RunLoop().RunUntilIdle();
 216   VerifyAndResetVisitorCallExpectations();
 217
 218   // Stop the cache. Verify that the loader announces an empty extension list.
 219   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 220       .Times(1);
 221   base::RunLoop run_loop;
 222   loader_->StopCache(run_loop.QuitClosure());
 223   VerifyAndResetVisitorCallExpectations();
 224
 225   // Spin the loop until the cache shutdown callback is invoked. Verify that at
 226   // that point, no further file I/O tasks are pending.
 227   run_loop.Run();
 228   EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 229 }
 230
 231 // Verifies that when a force-install list policy referencing an extension is
 232 // set and the cache is started, the loader downloads, caches and serves the
 233 // extension.
 234 TEST_F(DeviceLocalAccountExternalPolicyLoaderTest, ForceInstallListSet) {
 235   // Set a force-install list policy that contains an invalid entry (which
 236   // should be ignored) and a valid reference to an extension.
 237   SetForceInstallListPolicy();
 238
 239   // Start the cache.
 240   loader_->StartCache(base::ThreadTaskRunnerHandle::Get());
 241
 242   // Spin the loop, allowing the loader to process the force-install list.
 243   // Verify that the loader announces an empty extension list.
 244   net::TestURLFetcherFactory factory;
 245   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 246       .Times(1);
 247   base::MessageLoop::current()->RunUntilIdle();
 248
 249   // Verify that a downloader has started and is attempting to download an
 250   // update manifest.
 251   net::TestURLFetcher* fetcher = factory.GetFetcherByID(
 252       extensions::ExtensionDownloader::kManifestFetcherId);
 253   ASSERT_TRUE(fetcher);
 254   ASSERT_TRUE(fetcher->delegate());
 255
 256   // Return a manifest to the downloader.
 257   std::string manifest;
 258   EXPECT_TRUE(base::ReadFileToString(test_dir_.Append(kExtensionUpdateManifest),
 259                                      &manifest));
 260   fetcher->set_response_code(200);
 261   fetcher->SetResponseString(manifest);
 262   fetcher->delegate()->OnURLFetchComplete(fetcher);
 263
 264   // Wait for the manifest to be parsed.
 265   content::WindowedNotificationObserver(
 266       extensions::NOTIFICATION_EXTENSION_UPDATE_FOUND,
 267       content::NotificationService::AllSources()).Wait();
 268
 269   // Verify that the downloader is attempting to download a CRX file.
 270   fetcher = factory.GetFetcherByID(
 271       extensions::ExtensionDownloader::kExtensionFetcherId);
 272   ASSERT_TRUE(fetcher);
 273   ASSERT_TRUE(fetcher->delegate());
 274
 275   // Create a temporary CRX file and return its path to the downloader.
 276   EXPECT_TRUE(base::CopyFile(
 277       test_dir_.Append(kExtensionCRXSourceDir).Append(kExtensionCRXFile),
 278       temp_dir_.path().Append(kExtensionCRXFile)));
 279   fetcher->set_response_code(200);
 280   fetcher->SetResponseFilePath(temp_dir_.path().Append(kExtensionCRXFile));
 281   fetcher->delegate()->OnURLFetchComplete(fetcher);
 282
 283   // Spin the loop. Verify that the loader announces the presence of a new CRX
 284   // file, served from the cache directory.
 285   const base::FilePath cached_crx_path = cache_dir_.Append(base::StringPrintf(
 286       "%s-%s.crx", kExtensionId, kExtensionCRXVersion));
 287   base::RunLoop cache_run_loop;
 288   EXPECT_CALL(visitor_, OnExternalExtensionFileFound(
 289       kExtensionId,
 290       _,
 291       cached_crx_path,
 292       extensions::Manifest::EXTERNAL_POLICY,
 293       _,
 294       _,
 295       _));
 296   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 297       .Times(1)
 298       .WillOnce(InvokeWithoutArgs(&cache_run_loop, &base::RunLoop::Quit));
 299   cache_run_loop.Run();
 300   VerifyAndResetVisitorCallExpectations();
 301
 302   // Verify that the CRX file actually exists in the cache directory and its
 303   // contents matches the file returned to the downloader.
 304   EXPECT_TRUE(base::ContentsEqual(
 305       test_dir_.Append(kExtensionCRXSourceDir).Append(kExtensionCRXFile),
 306       cached_crx_path));
 307
 308   // Stop the cache. Verify that the loader announces an empty extension list.
 309   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 310       .Times(1);
 311   base::RunLoop shutdown_run_loop;
 312   loader_->StopCache(shutdown_run_loop.QuitClosure());
 313   VerifyAndResetVisitorCallExpectations();
 314
 315   // Spin the loop until the cache shutdown callback is invoked. Verify that at
 316   // that point, no further file I/O tasks are pending.
 317   shutdown_run_loop.Run();
 318   EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 319 }
 320
 321 }  // namespace chromeos