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/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/chrome_notification_types.h"
  20 #include "chrome/browser/extensions/external_provider_impl.h"
  21 #include "chrome/browser/extensions/updater/extension_downloader.h"
  22 #include "chrome/common/chrome_paths.h"
  23 #include "chrome/common/extensions/extension_constants.h"
  24 #include "chrome/test/base/testing_browser_process.h"
  25 #include "components/policy/core/common/cloud/mock_cloud_policy_store.h"
  26 #include "components/policy/core/common/policy_map.h"
  27 #include "components/policy/core/common/policy_types.h"
  28 #include "content/public/browser/notification_service.h"
  29 #include "content/public/browser/notification_source.h"
  30 #include "content/public/test/test_browser_thread_bundle.h"
  31 #include "content/public/test/test_utils.h"
  32 #include "extensions/browser/external_provider_interface.h"
  33 #include "extensions/common/extension.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_METHOD5(OnExternalExtensionUpdateUrlFound,
  74                bool(const std::string&,
  75                     const GURL&,
  76                     extensions::Manifest::Location,
  77                     int,
  78                     bool));
  79   MOCK_METHOD1(OnExternalProviderReady,
  80                void(const extensions::ExternalProviderInterface* provider));
  81
  82  private:
  83   DISALLOW_COPY_AND_ASSIGN(MockExternalPolicyProviderVisitor);
  84 };
  85
  86 MockExternalPolicyProviderVisitor::MockExternalPolicyProviderVisitor() {
  87 }
  88
  89 MockExternalPolicyProviderVisitor::~MockExternalPolicyProviderVisitor() {
  90 }
  91
  92 }  // namespace
  93
  94 class DeviceLocalAccountExternalPolicyLoaderTest : public testing::Test {
  95  protected:
  96   DeviceLocalAccountExternalPolicyLoaderTest();
  97   virtual ~DeviceLocalAccountExternalPolicyLoaderTest();
  98
  99   virtual void SetUp() OVERRIDE;
 100   virtual void TearDown() OVERRIDE;
 101
 102   void VerifyAndResetVisitorCallExpectations();
 103   void SetForceInstallListPolicy();
 104
 105   content::TestBrowserThreadBundle thread_bundle_;
 106   base::ScopedTempDir temp_dir_;
 107   base::FilePath cache_dir_;
 108   policy::MockCloudPolicyStore store_;
 109   scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
 110   base::FilePath test_dir_;
 111
 112   scoped_refptr<DeviceLocalAccountExternalPolicyLoader> loader_;
 113   MockExternalPolicyProviderVisitor visitor_;
 114   scoped_ptr<extensions::ExternalProviderImpl> provider_;
 115
 116   content::InProcessUtilityThreadHelper in_process_utility_thread_helper_;
 117 };
 118
 119 DeviceLocalAccountExternalPolicyLoaderTest::
 120     DeviceLocalAccountExternalPolicyLoaderTest()
 121     : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP) {
 122 }
 123
 124 DeviceLocalAccountExternalPolicyLoaderTest::
 125     ~DeviceLocalAccountExternalPolicyLoaderTest() {
 126 }
 127
 128 void DeviceLocalAccountExternalPolicyLoaderTest::SetUp() {
 129   ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 130   cache_dir_ = temp_dir_.path().Append(kCacheDir);
 131   ASSERT_TRUE(base::CreateDirectoryAndGetError(cache_dir_, NULL));
 132   request_context_getter_ =
 133       new net::TestURLRequestContextGetter(base::MessageLoopProxy::current());
 134   TestingBrowserProcess::GetGlobal()->SetSystemRequestContext(
 135       request_context_getter_.get());
 136   ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &test_dir_));
 137
 138   loader_ = new DeviceLocalAccountExternalPolicyLoader(&store_, cache_dir_);
 139   provider_.reset(new extensions::ExternalProviderImpl(
 140       &visitor_,
 141       loader_,
 142       NULL,
 143       extensions::Manifest::EXTERNAL_POLICY,
 144       extensions::Manifest::EXTERNAL_POLICY_DOWNLOAD,
 145       extensions::Extension::NO_FLAGS));
 146
 147   VerifyAndResetVisitorCallExpectations();
 148 }
 149
 150 void DeviceLocalAccountExternalPolicyLoaderTest::TearDown() {
 151   TestingBrowserProcess::GetGlobal()->SetSystemRequestContext(NULL);
 152 }
 153
 154 void DeviceLocalAccountExternalPolicyLoaderTest::
 155     VerifyAndResetVisitorCallExpectations() {
 156   Mock::VerifyAndClearExpectations(&visitor_);
 157   EXPECT_CALL(visitor_, OnExternalExtensionFileFound(_, _, _, _, _, _))
 158       .Times(0);
 159   EXPECT_CALL(visitor_, OnExternalExtensionUpdateUrlFound(_, _, _, _, _))
 160       .Times(0);
 161   EXPECT_CALL(visitor_, OnExternalProviderReady(_))
 162       .Times(0);
 163 }
 164
 165 void DeviceLocalAccountExternalPolicyLoaderTest::SetForceInstallListPolicy() {
 166   scoped_ptr<base::ListValue> forcelist(new base::ListValue);
 167   forcelist->AppendString("invalid");
 168   forcelist->AppendString(base::StringPrintf(
 169       "%s;%s",
 170       kExtensionId,
 171       extension_urls::GetWebstoreUpdateUrl().spec().c_str()));
 172   store_.policy_map_.Set(policy::key::kExtensionInstallForcelist,
 173                          policy::POLICY_LEVEL_MANDATORY,
 174                          policy::POLICY_SCOPE_USER,
 175                          forcelist.release(),
 176                          NULL);
 177   store_.NotifyStoreLoaded();
 178 }
 179
 180 // Verifies that when the cache is not explicitly started, the loader does not
 181 // serve any extensions, even if the force-install list policy is set or a load
 182 // is manually requested.
 183 TEST_F(DeviceLocalAccountExternalPolicyLoaderTest, CacheNotStarted) {
 184   // Set the force-install list policy.
 185   SetForceInstallListPolicy();
 186
 187   // Manually request a load.
 188   loader_->StartLoading();
 189
 190   EXPECT_FALSE(loader_->IsCacheRunning());
 191   EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 192 }
 193
 194 // Verifies that the cache can be started and stopped correctly.
 195 TEST_F(DeviceLocalAccountExternalPolicyLoaderTest, ForceInstallListEmpty) {
 196   // Set an empty force-install list policy.
 197   store_.NotifyStoreLoaded();
 198
 199   // Start the cache. Verify that the loader announces an empty extension list.
 200   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 201       .Times(1);
 202   loader_->StartCache(base::MessageLoopProxy::current());
 203   base::RunLoop().RunUntilIdle();
 204   VerifyAndResetVisitorCallExpectations();
 205
 206   // Stop the cache. Verify that the loader announces an empty extension list.
 207   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 208       .Times(1);
 209   base::RunLoop run_loop;
 210   loader_->StopCache(run_loop.QuitClosure());
 211   VerifyAndResetVisitorCallExpectations();
 212
 213   // Spin the loop until the cache shutdown callback is invoked. Verify that at
 214   // that point, no further file I/O tasks are pending.
 215   run_loop.Run();
 216   EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 217 }
 218
 219 // Verifies that when a force-install list policy referencing an extension is
 220 // set and the cache is started, the loader downloads, caches and serves the
 221 // extension.
 222 TEST_F(DeviceLocalAccountExternalPolicyLoaderTest, ForceInstallListSet) {
 223   // Set a force-install list policy that contains an invalid entry (which
 224   // should be ignored) and a valid reference to an extension.
 225   SetForceInstallListPolicy();
 226
 227   // Start the cache.
 228   loader_->StartCache(base::MessageLoopProxy::current());
 229
 230   // Spin the loop, allowing the loader to process the force-install list.
 231   // Verify that the loader announces an empty extension list.
 232   net::TestURLFetcherFactory factory;
 233   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 234       .Times(1);
 235   base::MessageLoop::current()->RunUntilIdle();
 236
 237   // Verify that a downloader has started and is attempting to download an
 238   // update manifest.
 239   net::TestURLFetcher* fetcher = factory.GetFetcherByID(
 240       extensions::ExtensionDownloader::kManifestFetcherId);
 241   ASSERT_TRUE(fetcher);
 242   ASSERT_TRUE(fetcher->delegate());
 243
 244   // Return a manifest to the downloader.
 245   std::string manifest;
 246   EXPECT_TRUE(base::ReadFileToString(test_dir_.Append(kExtensionUpdateManifest),
 247                                      &manifest));
 248   fetcher->set_response_code(200);
 249   fetcher->SetResponseString(manifest);
 250   fetcher->delegate()->OnURLFetchComplete(fetcher);
 251
 252   // Wait for the manifest to be parsed.
 253   content::WindowedNotificationObserver(
 254       chrome::NOTIFICATION_EXTENSION_UPDATE_FOUND,
 255       content::NotificationService::AllSources()).Wait();
 256
 257   // Verify that the downloader is attempting to download a CRX file.
 258   fetcher = factory.GetFetcherByID(
 259       extensions::ExtensionDownloader::kExtensionFetcherId);
 260   ASSERT_TRUE(fetcher);
 261   ASSERT_TRUE(fetcher->delegate());
 262
 263   // Create a temporary CRX file and return its path to the downloader.
 264   EXPECT_TRUE(base::CopyFile(
 265       test_dir_.Append(kExtensionCRXSourceDir).Append(kExtensionCRXFile),
 266       temp_dir_.path().Append(kExtensionCRXFile)));
 267   fetcher->set_response_code(200);
 268   fetcher->SetResponseFilePath(temp_dir_.path().Append(kExtensionCRXFile));
 269   fetcher->delegate()->OnURLFetchComplete(fetcher);
 270
 271   // Spin the loop. Verify that the loader announces the presence of a new CRX
 272   // file, served from the cache directory.
 273   const base::FilePath cached_crx_path = cache_dir_.Append(base::StringPrintf(
 274       "%s-%s.crx", kExtensionId, kExtensionCRXVersion));
 275   base::RunLoop cache_run_loop;
 276   EXPECT_CALL(visitor_, OnExternalExtensionFileFound(
 277       kExtensionId,
 278       _,
 279       cached_crx_path,
 280       extensions::Manifest::EXTERNAL_POLICY,
 281       _,
 282       _));
 283   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 284       .Times(1)
 285       .WillOnce(InvokeWithoutArgs(&cache_run_loop, &base::RunLoop::Quit));
 286   cache_run_loop.Run();
 287   VerifyAndResetVisitorCallExpectations();
 288
 289   // Verify that the CRX file actually exists in the cache directory and its
 290   // contents matches the file returned to the downloader.
 291   EXPECT_TRUE(base::ContentsEqual(
 292       test_dir_.Append(kExtensionCRXSourceDir).Append(kExtensionCRXFile),
 293       cached_crx_path));
 294
 295   // Stop the cache. Verify that the loader announces an empty extension list.
 296   EXPECT_CALL(visitor_, OnExternalProviderReady(provider_.get()))
 297       .Times(1);
 298   base::RunLoop shutdown_run_loop;
 299   loader_->StopCache(shutdown_run_loop.QuitClosure());
 300   VerifyAndResetVisitorCallExpectations();
 301
 302   // Spin the loop until the cache shutdown callback is invoked. Verify that at
 303   // that point, no further file I/O tasks are pending.
 304   shutdown_run_loop.Run();
 305   EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 306 }
 307
 308 }  // namespace chromeos