Update the EphemeralAppLauncher for use by the webstorePrivate API

chrome/browser/apps/ephemeral_app_launcher_browsertest.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/message_loop/message_loop_proxy.h"
+#include "chrome/browser/apps/ephemeral_app_launcher.h"
+#include "chrome/browser/extensions/extension_install_checker.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_test_message_listener.h"
+#include "chrome/browser/extensions/test_blacklist.h"
+#include "chrome/browser/extensions/webstore_installer_test.h"
+#include "chrome/common/chrome_switches.h"
+#include "content/public/test/test_utils.h"
+#include "extensions/browser/extension_prefs.h"
+#include "extensions/browser/extension_registry.h"
+#include "extensions/browser/extension_system.h"
+#include "extensions/browser/extension_util.h"
+#include "extensions/browser/management_policy.h"
+
+using extensions::Extension;
+using extensions::ExtensionPrefs;
+using extensions::ExtensionRegistry;
+using extensions::ExtensionSystem;
+namespace webstore_install = extensions::webstore_install;
+
+namespace {
+
+const char kWebstoreDomain[] = "cws.com";
+const char kAppDomain[] = "app.com";
+const char kNonAppDomain[] = "nonapp.com";
+const char kTestDataPath[] = "extensions/platform_apps/ephemeral_launcher";
+
+const char kExtensionId[] = "eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeid";
+const char kExtensionTestPath[] = "extension";
+const char kNonExistentId[] = "baaaaaaaaaaaaaaaaaaaaaaaaaaaadid";
+const char kDefaultAppId[] = "kbiancnbopdghkfedjhfdoegjadfjeal";
+const char kDefaultAppCrxFilename[] = "app.crx";
+const char kDefaultAppTestPath[] = "app";
+const char kAppWithPermissionsId[] = "mbfcnecjknjpipkfkoangpfnhhlpamki";
+const char kAppWithPermissionsFilename[] = "app_with_permissions.crx";
+
+class ExtensionInstallCheckerMock : public extensions::ExtensionInstallChecker {
+ public:
+  ExtensionInstallCheckerMock(Profile* profile,
+                              const std::string& requirements_error)
+      : extensions::ExtensionInstallChecker(profile),
+        requirements_error_(requirements_error) {}
+
+  virtual ~ExtensionInstallCheckerMock() {}
+
+ private:
+  virtual void CheckRequirements() OVERRIDE {
+    // Simulate an asynchronous operation.
+    base::MessageLoopProxy::current()->PostTask(
+        FROM_HERE,
+        base::Bind(&ExtensionInstallCheckerMock::RequirementsErrorCheckDone,
+                   base::Unretained(this),
+                   current_sequence_number()));
+  }
+
+  void RequirementsErrorCheckDone(int sequence_number) {
+    std::vector<std::string> errors;
+    errors.push_back(requirements_error_);
+    OnRequirementsCheckDone(sequence_number, errors);
+  }
+
+  std::string requirements_error_;
+};
+
+class EphemeralAppLauncherForTest : public EphemeralAppLauncher {
+ public:
+  EphemeralAppLauncherForTest(const std::string& id, Profile* profile)
+      : EphemeralAppLauncher(id, profile, NULL, LaunchCallback()),
+        install_initiated_(false),
+        install_prompt_created_(false) {}
+
+  bool install_initiated() const { return install_initiated_; }
+  bool install_prompt_created() const { return install_prompt_created_; }
+
+  void set_requirements_error(const std::string& error) {
+    requirements_check_error_ = error;
+  }
+
+ private:
+  // Override necessary functions for testing.
+
+  virtual scoped_ptr<extensions::ExtensionInstallChecker> CreateInstallChecker()
+      OVERRIDE {
+    if (requirements_check_error_.empty()) {
+      return EphemeralAppLauncher::CreateInstallChecker();
+    } else {
+      return scoped_ptr<extensions::ExtensionInstallChecker>(
+          new ExtensionInstallCheckerMock(profile(),
+                                          requirements_check_error_));
+    }
+  }
+
+  virtual scoped_ptr<ExtensionInstallPrompt> CreateInstallUI() OVERRIDE {
+    install_prompt_created_ = true;
+    return EphemeralAppLauncher::CreateInstallUI();
+  }
+
+  virtual scoped_ptr<extensions::WebstoreInstaller::Approval> CreateApproval()
+      const OVERRIDE {
+    install_initiated_ = true;
+    return EphemeralAppLauncher::CreateApproval();
+  }
+
+ private:
+  virtual ~EphemeralAppLauncherForTest() {}
+  friend class base::RefCountedThreadSafe<EphemeralAppLauncherForTest>;
+
+  mutable bool install_initiated_;
+  std::string requirements_check_error_;
+  bool install_prompt_created_;
+};
+
+class LaunchObserver {
+ public:
+  LaunchObserver()
+      : done_(false),
+        waiting_(false),
+        result_(webstore_install::UNKNOWN_ERROR) {}
+
+  webstore_install::Result result() const { return result_; }
+  const std::string& error() const { return error_; }
+
+  void OnLaunchCallback(webstore_install::Result result,
+                        const std::string& error) {
+    result_ = result;
+    error_ = error;
+    done_ = true;
+    if (waiting_) {
+      waiting_ = false;
+      base::MessageLoopForUI::current()->Quit();
+    }
+  }
+
+  void Wait() {
+    if (done_)
+      return;
+
+    waiting_ = true;
+    content::RunMessageLoop();
+  }
+
+ private:
+  bool done_;
+  bool waiting_;
+  webstore_install::Result result_;
+  std::string error_;
+};
+
+class ManagementPolicyMock : public extensions::ManagementPolicy::Provider {
+ public:
+  ManagementPolicyMock() {}
+
+  virtual std::string GetDebugPolicyProviderName() const OVERRIDE {
+    return "ManagementPolicyMock";
+  }
+
+  virtual bool UserMayLoad(const Extension* extension,
+                           base::string16* error) const OVERRIDE {
+    return false;
+  }
+};
+
+}  // namespace
+
+class EphemeralAppLauncherTest : public WebstoreInstallerTest {
+ public:
+  EphemeralAppLauncherTest()
+      : WebstoreInstallerTest(kWebstoreDomain,
+                              kTestDataPath,
+                              kDefaultAppCrxFilename,
+                              kAppDomain,
+                              kNonAppDomain) {}
+
+  virtual void SetUpCommandLine(base::CommandLine* command_line) OVERRIDE {
+    WebstoreInstallerTest::SetUpCommandLine(command_line);
+
+    // Enable ephemeral apps flag.
+    command_line->AppendSwitch(switches::kEnableEphemeralApps);
+  }
+
+  base::FilePath GetTestPath(const char* test_name) {
+    return test_data_dir_.AppendASCII("platform_apps/ephemeral_launcher")
+        .AppendASCII(test_name);
+  }
+
+  const Extension* GetInstalledExtension(const std::string& id) {
+    return ExtensionRegistry::Get(profile())
+        ->GetExtensionById(id, ExtensionRegistry::EVERYTHING);
+  }
+
+  void SetCrxFilename(const std::string& filename) {
+    GURL crx_url = GenerateTestServerUrl(kWebstoreDomain, filename);
+    base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
+        switches::kAppsGalleryUpdateURL, crx_url.spec());
+  }
+
+  void StartLauncherAndCheckResult(EphemeralAppLauncherForTest* launcher,
+                                   webstore_install::Result expected_result,
+                                   bool expect_install_initiated) {
+    ExtensionTestMessageListener launched_listener("launched", false);
+    LaunchObserver launch_observer;
+
+    launcher->launch_callback_ = base::Bind(&LaunchObserver::OnLaunchCallback,
+                                            base::Unretained(&launch_observer));
+    launcher->Start();
+    launch_observer.Wait();
+
+    // Verify the launch result.
+    EXPECT_EQ(expected_result, launch_observer.result());
+    EXPECT_EQ(expect_install_initiated, launcher->install_initiated());
+
+    // Verify that the app was actually launched if the launcher succeeded.
+    if (launch_observer.result() == webstore_install::SUCCESS)
+      EXPECT_TRUE(launched_listener.WaitUntilSatisfied());
+    else
+      EXPECT_FALSE(launched_listener.was_satisfied());
+
+    // Check the reference count to ensure the launcher instance will not be
+    // leaked.
+    EXPECT_TRUE(launcher->HasOneRef());
+  }
+
+  void RunLaunchTest(const std::string& id,
+                     webstore_install::Result expected_result,
+                     bool expect_install_initiated) {
+    scoped_refptr<EphemeralAppLauncherForTest> launcher(
+        new EphemeralAppLauncherForTest(id, profile()));
+    StartLauncherAndCheckResult(
+        launcher.get(), expected_result, expect_install_initiated);
+  }
+
+  void ValidateAppInstalledEphemerally(const std::string& id) {
+    EXPECT_TRUE(GetInstalledExtension(id));
+    EXPECT_TRUE(extensions::util::IsEphemeralApp(id, profile()));
+  }
+
+  const Extension* InstallAndDisableApp(
+      const char* test_path,
+      Extension::DisableReason disable_reason) {
+    const Extension* app = InstallExtension(GetTestPath(test_path), 1);
+    EXPECT_TRUE(app);
+    if (!app)
+      return NULL;
+
+    if (disable_reason == Extension::DISABLE_GREYLIST) {
+      ExtensionPrefs::Get(profile())->SetExtensionBlacklistState(
+          app->id(), extensions::BLACKLISTED_MALWARE);
+    }
+
+    ExtensionService* service =
+        ExtensionSystem::Get(profile())->extension_service();
+    service->DisableExtension(app->id(), disable_reason);
+
+    if (disable_reason == Extension::DISABLE_PERMISSIONS_INCREASE) {
+      // When an extension is disabled due to a permissions increase, this
+      // flag needs to be set too, for some reason.
+      ExtensionPrefs::Get(profile())
+          ->SetDidExtensionEscalatePermissions(app, true);
+    }
+
+    EXPECT_FALSE(
+        ExtensionRegistry::Get(profile())->enabled_extensions().Contains(
+            app->id()));
+    return app;
+  }
+};
+
+class EphemeralAppLauncherTestDisabled : public EphemeralAppLauncherTest {
+ public:
+  virtual void SetUpCommandLine(base::CommandLine* command_line) OVERRIDE {
+    // Skip EphemeralAppLauncherTest as it enables the feature.
+    WebstoreInstallerTest::SetUpCommandLine(command_line);
+  }
+};
+
+// Verifies that an ephemeral app will not be installed and launched if the
+// feature is disabled.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTestDisabled, FeatureDisabled) {
+  RunLaunchTest(
+      kDefaultAppCrxFilename, webstore_install::LAUNCH_FEATURE_DISABLED, false);
+  EXPECT_FALSE(GetInstalledExtension(kDefaultAppId));
+}
+
+// Verifies that an app with no permission warnings will be installed
+// ephemerally and launched without prompting the user.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest,
+                       LaunchAppWithNoPermissionWarnings) {
+  scoped_refptr<EphemeralAppLauncherForTest> launcher(
+      new EphemeralAppLauncherForTest(kDefaultAppId, profile()));
+  StartLauncherAndCheckResult(launcher.get(), webstore_install::SUCCESS, true);
+  ValidateAppInstalledEphemerally(kDefaultAppId);
+
+  // Apps with no permission warnings should not result in a prompt.
+  EXPECT_FALSE(launcher->install_prompt_created());
+
+  // After an app has been installed ephemerally, it can be launched again
+  // without installing from the web store.
+  RunLaunchTest(kDefaultAppId, webstore_install::SUCCESS, false);
+}
+
+// Verifies that an app with permission warnings will be installed
+// ephemerally and launched if accepted by the user.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest,
+                       LaunchAppWithPermissionsWarnings) {
+  SetCrxFilename(kAppWithPermissionsFilename);
+  AutoAcceptInstall();
+
+  scoped_refptr<EphemeralAppLauncherForTest> launcher(
+      new EphemeralAppLauncherForTest(kAppWithPermissionsId, profile()));
+  StartLauncherAndCheckResult(launcher.get(), webstore_install::SUCCESS, true);
+  ValidateAppInstalledEphemerally(kAppWithPermissionsId);
+  EXPECT_TRUE(launcher->install_prompt_created());
+}
+
+// Verifies that an app with permission warnings will not be installed
+// ephemerally if cancelled by the user.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest,
+                       CancelInstallAppWithPermissionWarnings) {
+  SetCrxFilename(kAppWithPermissionsFilename);
+  AutoCancelInstall();
+
+  scoped_refptr<EphemeralAppLauncherForTest> launcher(
+      new EphemeralAppLauncherForTest(kAppWithPermissionsId, profile()));
+  StartLauncherAndCheckResult(
+      launcher.get(), webstore_install::USER_CANCELLED, false);
+  EXPECT_FALSE(GetInstalledExtension(kAppWithPermissionsId));
+  EXPECT_TRUE(launcher->install_prompt_created());
+}
+
+// Verifies that an extension will not be installed ephemerally.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest, InstallExtension) {
+  RunLaunchTest(
+      kExtensionId, webstore_install::LAUNCH_UNSUPPORTED_EXTENSION_TYPE, false);
+  EXPECT_FALSE(GetInstalledExtension(kExtensionId));
+}
+
+// Verifies that an already installed extension will not be launched.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest, LaunchExtension) {
+  const Extension* extension =
+      InstallExtension(GetTestPath(kExtensionTestPath), 1);
+  ASSERT_TRUE(extension);
+  RunLaunchTest(extension->id(),
+                webstore_install::LAUNCH_UNSUPPORTED_EXTENSION_TYPE,
+                false);
+}
+
+// Verifies that the EphemeralAppLauncher handles non-existent extension ids.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest, NonExistentExtensionId) {
+  RunLaunchTest(
+      kNonExistentId, webstore_install::WEBSTORE_REQUEST_ERROR, false);
+  EXPECT_FALSE(GetInstalledExtension(kNonExistentId));
+}
+
+// Verifies that an app blocked by management policy is not installed
+// ephemerally.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest, BlockedByPolicy) {
+  // Register a provider that blocks the installation of all apps.
+  ManagementPolicyMock policy;
+  ExtensionSystem::Get(profile())->management_policy()->RegisterProvider(
+      &policy);
+
+  RunLaunchTest(kDefaultAppId, webstore_install::BLOCKED_BY_POLICY, false);
+  EXPECT_FALSE(GetInstalledExtension(kDefaultAppId));
+}
+
+// Verifies that an app blacklisted for malware is not installed ephemerally.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest, BlacklistedForMalware) {
+  // Mock a BLACKLISTED_MALWARE return status.
+  extensions::TestBlacklist blacklist_tester(
+      ExtensionSystem::Get(profile())->blacklist());
+  blacklist_tester.SetBlacklistState(
+      kDefaultAppId, extensions::BLACKLISTED_MALWARE, false);
+
+  RunLaunchTest(kDefaultAppId, webstore_install::BLACKLISTED, false);
+  EXPECT_FALSE(GetInstalledExtension(kDefaultAppId));
+}
+
+// Verifies that an app with unknown blacklist status is installed ephemerally
+// and launched.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest, BlacklistStateUnknown) {
+  // Mock a BLACKLISTED_MALWARE return status.
+  extensions::TestBlacklist blacklist_tester(
+      ExtensionSystem::Get(profile())->blacklist());
+  blacklist_tester.SetBlacklistState(
+      kDefaultAppId, extensions::BLACKLISTED_UNKNOWN, false);
+
+  RunLaunchTest(kDefaultAppId, webstore_install::SUCCESS, true);
+  ValidateAppInstalledEphemerally(kDefaultAppId);
+}
+
+// Verifies that an app with unsupported requirements is not installed
+// ephemerally.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest, UnsupportedRequirements) {
+  scoped_refptr<EphemeralAppLauncherForTest> launcher(
+      new EphemeralAppLauncherForTest(kDefaultAppId, profile()));
+  launcher->set_requirements_error("App has unsupported requirements");
+
+  StartLauncherAndCheckResult(
+      launcher.get(), webstore_install::REQUIREMENT_VIOLATIONS, false);
+  EXPECT_FALSE(GetInstalledExtension(kDefaultAppId));
+}
+
+// Verifies that an app disabled due to permissions increase can be enabled
+// and launched.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest, EnableAndLaunchApp) {
+  const Extension* app = InstallAndDisableApp(
+      kDefaultAppTestPath, Extension::DISABLE_PERMISSIONS_INCREASE);
+  ASSERT_TRUE(app);
+
+  AutoAcceptInstall();
+  RunLaunchTest(app->id(), webstore_install::SUCCESS, false);
+}
+
+// Verifies that if the user cancels the enable flow, the app will not be
+// enabled and launched.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest, EnableCancelled) {
+  const Extension* app = InstallAndDisableApp(
+      kDefaultAppTestPath, Extension::DISABLE_PERMISSIONS_INCREASE);
+  ASSERT_TRUE(app);
+
+  AutoCancelInstall();
+  RunLaunchTest(app->id(), webstore_install::USER_CANCELLED, false);
+}
+
+// Verifies that an installed app that had been blocked by policy cannot be
+// launched.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest, LaunchAppBlockedByPolicy) {
+  const Extension* app = InstallExtension(GetTestPath(kDefaultAppTestPath), 1);
+  ASSERT_TRUE(app);
+
+  // Simulate blocking of the app after it has been installed.
+  ManagementPolicyMock policy;
+  ExtensionSystem::Get(profile())->management_policy()->RegisterProvider(
+      &policy);
+  ExtensionSystem::Get(profile())->extension_service()->CheckManagementPolicy();
+
+  RunLaunchTest(app->id(), webstore_install::BLOCKED_BY_POLICY, false);
+}
+
+// Verifies that an installed blacklisted app cannot be launched.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest, LaunchBlacklistedApp) {
+  const Extension* app =
+      InstallAndDisableApp(kDefaultAppTestPath, Extension::DISABLE_GREYLIST);
+  ASSERT_TRUE(app);
+
+  RunLaunchTest(app->id(), webstore_install::BLACKLISTED, false);
+}
+
+// Verifies that an installed app with unsupported requirements cannot be
+// launched.
+IN_PROC_BROWSER_TEST_F(EphemeralAppLauncherTest,
+                       LaunchAppWithUnsupportedRequirements) {
+  const Extension* app = InstallAndDisableApp(
+      kDefaultAppTestPath, Extension::DISABLE_UNSUPPORTED_REQUIREMENT);
+  ASSERT_TRUE(app);
+
+  RunLaunchTest(app->id(), webstore_install::REQUIREMENT_VIOLATIONS, false);
+}