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