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/message_loop/message_loop_proxy.h"
  14 #include "base/path_service.h"
  15 #include "base/run_loop.h"
  16 #include "base/strings/stringprintf.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_METHOD6(OnExternalExtensionFileFound,
  72                bool(const std::string&,
  73                     const base::Version*,
  74                     const base::FilePath&,
  75                     extensions::Manifest::Location,
  76                     int,
  77                     bool));
  78   MOCK_METHOD6(OnExternalExtensionUpdateUrlFound,
  79                bool(const std::string&,
  80                     const std::string&,
  81                     const GURL&,
  82                     extensions::Manifest::Location,
  83                     int,
  84                     bool));
  85   MOCK_METHOD1(OnExternalProviderReady,
  86                void(const extensions::ExternalProviderInterface* provider));
  87
  88  private:
  89   DISALLOW_COPY_AND_ASSIGN(MockExternalPolicyProviderVisitor);
  90 };
  91
  92 MockExternalPolicyProviderVisitor::MockExternalPolicyProviderVisitor() {
  93 }
  94
  95 MockExternalPolicyProviderVisitor::~MockExternalPolicyProviderVisitor() {
  96 }
  97
  98 }  // namespace
  99
 100 class DeviceLocalAccountExternalPolicyLoaderTest : public testing::Test {
 101  protected:
 102   DeviceLocalAccountExternalPolicyLoaderTest();
 103   ~DeviceLocalAccountExternalPolicyLoaderTest() override;
 104
 105   void SetUp() override;
 106   void TearDown() override;
 107
 108   void VerifyAndResetVisitorCallExpectations();
 109   void SetForceInstallListPolicy();
 110
 111   content::TestBrowserThreadBundle thread_bundle_;
 112   base::ScopedTempDir temp_dir_;
 113   base::FilePath cache_dir_;
 114   policy::MockCloudPolicyStore store_;
 115   scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
 116   base::FilePath test_dir_;
 117
 118   scoped_refptr<DeviceLocalAccountExternalPolicyLoader> loader_;
 119   MockExternalPolicyProviderVisitor visitor_;
 120   scoped_ptr<extensions::ExternalProviderImpl> provider_;
 121
 122   content::InProcessUtilityThreadHelper in_process_utility_thread_helper_;
 123
 124 #if defined(OS_CHROMEOS)
 125   chromeos::ScopedTestDeviceSettingsService test_device_settings_service_;
 126   chromeos::ScopedTestCrosSettings test_cros_settings_;
 127 #endif // defined(OS_CHROMEOS)
 128 };
 129
 130 DeviceLocalAccountExternalPolicyLoaderTest::
 131     DeviceLocalAccountExternalPolicyLoaderTest()
 132     : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP) {
 133 }
 134
 135 DeviceLocalAccountExternalPolicyLoaderTest::
 136     ~DeviceLocalAccountExternalPolicyLoaderTest() {
 137 }
 138
 139 void DeviceLocalAccountExternalPolicyLoaderTest::SetUp() {
 140   ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 141   cache_dir_ = temp_dir_.path().Append(kCacheDir);
 142   ASSERT_TRUE(base::CreateDirectoryAndGetError(cache_dir_, NULL));
 143   request_context_getter_ =
 144       new net::TestURLRequestContextGetter(base::MessageLoopProxy::current());
 145   TestingBrowserProcess::GetGlobal()->SetSystemRequestContext(
 146       request_context_getter_.get());
 147   ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &test_dir_));
 148
 149   loader_ = new DeviceLocalAccountExternalPolicyLoader(&store_, cache_dir_);
 150   provider_.reset(new extensions::ExternalProviderImpl(
 151       &visitor_,
 152       loader_,
 153       NULL,
 154       extensions::Manifest::EXTERNAL_POLICY,
 155       extensions::Manifest::EXTERNAL_POLICY_DOWNLOAD,
 156       extensions::Extension::NO_FLAGS));
 157
 158   VerifyAndResetVisitorCallExpectations();
 159 }
 160
 161 void DeviceLocalAccountExternalPolicyLoaderTest::TearDown() {
 162   TestingBrowserProcess::GetGlobal()->SetSystemRequestContext(NULL);
 163 }
 164
 165 void DeviceLocalAccountExternalPolicyLoaderTest::
 166     VerifyAndResetVisitorCallExpectations() {
 167   Mock::VerifyAndClearExpectations(&visitor_);
 168   EXPECT_CALL(visitor_, OnExternalExtensionFileFound(_, _, _, _, _, _))
 169       .Times(0);
 170   EXPECT_CALL(visitor_, OnExternalExtensionUpdateUrlFound(_, _, _, _, _, _))
 171       .Times(0);
 172   EXPECT_CALL(visitor_, OnExternalProviderReady(_))
 173       .Times(0);
 174 }
 175
 176 void DeviceLocalAccountExternalPolicyLoaderTest::SetForceInstallListPolicy() {
 177   scoped_ptr<base::ListValue> forcelist(new base::ListValue);
 178   forcelist->AppendString("invalid");
 179   forcelist->AppendString(base::StringPrintf(
 180       "%s;%s",
 181       kExtensionId,
 182       extension_urls::GetWebstoreUpdateUrl().spec().c_str()));
 183   store_.policy_map_.Set(policy::key::kExtensionInstallForcelist,
 184                          policy::POLICY_LEVEL_MANDATORY,
 185                          policy::POLICY_SCOPE_USER,
 186                          forcelist.release(),
 187                          NULL);
 188   store_.NotifyStoreLoaded();
 189 }
 190
 191 // Verifies that when the cache is not explicitly started, the loader does not
 192 // serve any extensions, even if the force-install list policy is set or a load
 193 // is manually requested.
 194 TEST_F(DeviceLocalAccountExternalPolicyLoaderTest, CacheNotStarted) {
 195   // Set the force-install list policy.
 196   SetForceInstallListPolicy();
 197
 198   // Manually request a load.
 199   loader_->StartLoading();
 200
 201   EXPECT_FALSE(loader_->IsCacheRunning());
 202   EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 203 }
 204
 205 // Verifies that the cache can be started and stopped correctly.
 206 TEST_F(DeviceLocalAccountExternalPolicyLoaderTest, ForceInstallListEmpty) {
 207   // Set an empty force-install list policy.
 208   store_.NotifyStoreLoaded();
 209
 210   // Start the cache. Verify that the loader announces an empty extension list.
 211   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 212       .Times(1);
 213   loader_->StartCache(base::MessageLoopProxy::current());
 214   base::RunLoop().RunUntilIdle();
 215   VerifyAndResetVisitorCallExpectations();
 216
 217   // Stop the cache. Verify that the loader announces an empty extension list.
 218   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 219       .Times(1);
 220   base::RunLoop run_loop;
 221   loader_->StopCache(run_loop.QuitClosure());
 222   VerifyAndResetVisitorCallExpectations();
 223
 224   // Spin the loop until the cache shutdown callback is invoked. Verify that at
 225   // that point, no further file I/O tasks are pending.
 226   run_loop.Run();
 227   EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 228 }
 229
 230 // Verifies that when a force-install list policy referencing an extension is
 231 // set and the cache is started, the loader downloads, caches and serves the
 232 // extension.
 233 TEST_F(DeviceLocalAccountExternalPolicyLoaderTest, ForceInstallListSet) {
 234   // Set a force-install list policy that contains an invalid entry (which
 235   // should be ignored) and a valid reference to an extension.
 236   SetForceInstallListPolicy();
 237
 238   // Start the cache.
 239   loader_->StartCache(base::MessageLoopProxy::current());
 240
 241   // Spin the loop, allowing the loader to process the force-install list.
 242   // Verify that the loader announces an empty extension list.
 243   net::TestURLFetcherFactory factory;
 244   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 245       .Times(1);
 246   base::MessageLoop::current()->RunUntilIdle();
 247
 248   // Verify that a downloader has started and is attempting to download an
 249   // update manifest.
 250   net::TestURLFetcher* fetcher = factory.GetFetcherByID(
 251       extensions::ExtensionDownloader::kManifestFetcherId);
 252   ASSERT_TRUE(fetcher);
 253   ASSERT_TRUE(fetcher->delegate());
 254
 255   // Return a manifest to the downloader.
 256   std::string manifest;
 257   EXPECT_TRUE(base::ReadFileToString(test_dir_.Append(kExtensionUpdateManifest),
 258                                      &manifest));
 259   fetcher->set_response_code(200);
 260   fetcher->SetResponseString(manifest);
 261   fetcher->delegate()->OnURLFetchComplete(fetcher);
 262
 263   // Wait for the manifest to be parsed.
 264   content::WindowedNotificationObserver(
 265       extensions::NOTIFICATION_EXTENSION_UPDATE_FOUND,
 266       content::NotificationService::AllSources()).Wait();
 267
 268   // Verify that the downloader is attempting to download a CRX file.
 269   fetcher = factory.GetFetcherByID(
 270       extensions::ExtensionDownloader::kExtensionFetcherId);
 271   ASSERT_TRUE(fetcher);
 272   ASSERT_TRUE(fetcher->delegate());
 273
 274   // Create a temporary CRX file and return its path to the downloader.
 275   EXPECT_TRUE(base::CopyFile(
 276       test_dir_.Append(kExtensionCRXSourceDir).Append(kExtensionCRXFile),
 277       temp_dir_.path().Append(kExtensionCRXFile)));
 278   fetcher->set_response_code(200);
 279   fetcher->SetResponseFilePath(temp_dir_.path().Append(kExtensionCRXFile));
 280   fetcher->delegate()->OnURLFetchComplete(fetcher);
 281
 282   // Spin the loop. Verify that the loader announces the presence of a new CRX
 283   // file, served from the cache directory.
 284   const base::FilePath cached_crx_path = cache_dir_.Append(base::StringPrintf(
 285       "%s-%s.crx", kExtensionId, kExtensionCRXVersion));
 286   base::RunLoop cache_run_loop;
 287   EXPECT_CALL(visitor_, OnExternalExtensionFileFound(
 288       kExtensionId,
 289       _,
 290       cached_crx_path,
 291       extensions::Manifest::EXTERNAL_POLICY,
 292       _,
 293       _));
 294   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 295       .Times(1)
 296       .WillOnce(InvokeWithoutArgs(&cache_run_loop, &base::RunLoop::Quit));
 297   cache_run_loop.Run();
 298   VerifyAndResetVisitorCallExpectations();
 299
 300   // Verify that the CRX file actually exists in the cache directory and its
 301   // contents matches the file returned to the downloader.
 302   EXPECT_TRUE(base::ContentsEqual(
 303       test_dir_.Append(kExtensionCRXSourceDir).Append(kExtensionCRXFile),
 304       cached_crx_path));
 305
 306   // Stop the cache. Verify that the loader announces an empty extension list.
 307   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 308       .Times(1);
 309   base::RunLoop shutdown_run_loop;
 310   loader_->StopCache(shutdown_run_loop.QuitClosure());
 311   VerifyAndResetVisitorCallExpectations();
 312
 313   // Spin the loop until the cache shutdown callback is invoked. Verify that at
 314   // that point, no further file I/O tasks are pending.
 315   shutdown_run_loop.Run();
 316   EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 317 }
 318
 319 }  // namespace chromeos