chrome/browser/extensions/extension_startup_browsertest.cc

   1 // Copyright (c) 2012 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 <vector>
   6
   7 #include "base/command_line.h"
   8 #include "base/files/file_path.h"
   9 #include "base/files/file_util.h"
  10 #include "base/path_service.h"
  11 #include "base/strings/string_util.h"
  12 #include "base/strings/stringprintf.h"
  13 #include "chrome/browser/chrome_notification_types.h"
  14 #include "chrome/browser/extensions/extension_service.h"
  15 #include "chrome/browser/extensions/extension_util.h"
  16 #include "chrome/browser/extensions/shared_user_script_master.h"
  17 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  18 #include "chrome/browser/profiles/profile.h"
  19 #include "chrome/browser/ui/browser.h"
  20 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  21 #include "chrome/common/chrome_constants.h"
  22 #include "chrome/common/chrome_paths.h"
  23 #include "chrome/common/chrome_switches.h"
  24 #include "chrome/test/base/in_process_browser_test.h"
  25 #include "chrome/test/base/testing_profile.h"
  26 #include "chrome/test/base/ui_test_utils.h"
  27 #include "content/public/browser/notification_details.h"
  28 #include "content/public/browser/notification_service.h"
  29 #include "content/public/browser/web_contents.h"
  30 #include "content/public/common/content_switches.h"
  31 #include "content/public/test/browser_test_utils.h"
  32 #include "extensions/browser/extension_registry.h"
  33 #include "extensions/browser/extension_system.h"
  34 #include "extensions/common/extension.h"
  35 #include "extensions/common/extension_set.h"
  36 #include "extensions/common/feature_switch.h"
  37 #include "net/base/filename_util.h"
  38
  39 using extensions::FeatureSwitch;
  40
  41 // This file contains high-level startup tests for the extensions system. We've
  42 // had many silly bugs where command line flags did not get propagated correctly
  43 // into the services, so we didn't start correctly.
  44
  45 class ExtensionStartupTestBase : public InProcessBrowserTest {
  46  public:
  47   ExtensionStartupTestBase() : unauthenticated_load_allowed_(true) {
  48     num_expected_extensions_ = 3;
  49   }
  50
  51  protected:
  52   // InProcessBrowserTest
  53   void SetUpCommandLine(base::CommandLine* command_line) override {
  54     if (load_extensions_.empty()) {
  55       // If no |load_extensions_| were specified, allow unauthenticated
  56       // extension settings to be loaded from Preferences as if they had been
  57       // authenticated correctly before they were handed to the ExtensionSystem.
  58       command_line->AppendSwitchASCII(
  59           switches::kForceFieldTrials,
  60           base::StringPrintf(
  61               "%s/%s/",
  62               chrome_prefs::internals::kSettingsEnforcementTrialName,
  63               chrome_prefs::internals::kSettingsEnforcementGroupNoEnforcement));
  64 #if defined(OFFICIAL_BUILD) && defined(OS_WIN)
  65       // In Windows official builds, it is not possible to disable settings
  66       // authentication.
  67       unauthenticated_load_allowed_ = false;
  68 #endif
  69     } else {
  70       base::FilePath::StringType paths =
  71           base::JoinString(load_extensions_,
  72                            base::FilePath::StringType(1, ','));
  73       command_line->AppendSwitchNative(switches::kLoadExtension,
  74                                        paths);
  75       command_line->AppendSwitch(switches::kDisableExtensionsFileAccessCheck);
  76     }
  77   }
  78
  79   bool SetUpUserDataDirectory() override {
  80     base::FilePath profile_dir;
  81     PathService::Get(chrome::DIR_USER_DATA, &profile_dir);
  82     profile_dir = profile_dir.AppendASCII(TestingProfile::kTestUserProfileDir);
  83     base::CreateDirectory(profile_dir);
  84
  85     preferences_file_ = profile_dir.Append(chrome::kPreferencesFilename);
  86     user_scripts_dir_ = profile_dir.AppendASCII("User Scripts");
  87     extensions_dir_ = profile_dir.AppendASCII("Extensions");
  88
  89     if (load_extensions_.empty()) {
  90       base::FilePath src_dir;
  91       PathService::Get(chrome::DIR_TEST_DATA, &src_dir);
  92       src_dir = src_dir.AppendASCII("extensions").AppendASCII("good");
  93
  94       base::CopyFile(src_dir.Append(chrome::kPreferencesFilename),
  95                      preferences_file_);
  96       base::CopyDirectory(src_dir.AppendASCII("Extensions"),
  97                           profile_dir, true);  // recursive
  98     }
  99     return true;
 100   }
 101
 102   void SetUpInProcessBrowserTestFixture() override {
 103     InProcessBrowserTest::SetUpInProcessBrowserTestFixture();
 104
 105     // Bots are on a domain, turn off the domain check for settings hardening in
 106     // order to be able to test all SettingsEnforcement groups.
 107     chrome_prefs::DisableDomainCheckForTesting();
 108   }
 109
 110   void TearDown() override {
 111     EXPECT_TRUE(base::DeleteFile(preferences_file_, false));
 112
 113     // TODO(phajdan.jr): Check return values of the functions below, carefully.
 114     base::DeleteFile(user_scripts_dir_, true);
 115     base::DeleteFile(extensions_dir_, true);
 116
 117     InProcessBrowserTest::TearDown();
 118   }
 119
 120   void WaitForServicesToStart(int num_expected_extensions,
 121                               bool expect_extensions_enabled) {
 122     extensions::ExtensionRegistry* registry =
 123         extensions::ExtensionRegistry::Get(browser()->profile());
 124
 125     // Count the number of non-component extensions.
 126     int found_extensions = 0;
 127     for (const scoped_refptr<const extensions::Extension>& extension :
 128          registry->enabled_extensions()) {
 129       if (extension->location() != extensions::Manifest::COMPONENT)
 130         found_extensions++;
 131     }
 132
 133     if (!unauthenticated_load_allowed_)
 134       num_expected_extensions = 0;
 135
 136     ASSERT_EQ(static_cast<uint32>(num_expected_extensions),
 137               static_cast<uint32>(found_extensions));
 138
 139     ExtensionService* service = extensions::ExtensionSystem::Get(
 140                                     browser()->profile())->extension_service();
 141     ASSERT_EQ(expect_extensions_enabled, service->extensions_enabled());
 142
 143     content::WindowedNotificationObserver user_scripts_observer(
 144         extensions::NOTIFICATION_USER_SCRIPTS_UPDATED,
 145         content::NotificationService::AllSources());
 146     extensions::SharedUserScriptMaster* master =
 147         extensions::ExtensionSystem::Get(browser()->profile())->
 148             shared_user_script_master();
 149     if (!master->scripts_ready())
 150       user_scripts_observer.Wait();
 151     ASSERT_TRUE(master->scripts_ready());
 152   }
 153
 154   void TestInjection(bool expect_css, bool expect_script) {
 155     if (!unauthenticated_load_allowed_) {
 156       expect_css = false;
 157       expect_script = false;
 158     }
 159
 160     // Load a page affected by the content script and test to see the effect.
 161     base::FilePath test_file;
 162     PathService::Get(chrome::DIR_TEST_DATA, &test_file);
 163     test_file = test_file.AppendASCII("extensions")
 164                          .AppendASCII("test_file.html");
 165
 166     ui_test_utils::NavigateToURL(browser(), net::FilePathToFileURL(test_file));
 167
 168     bool result = false;
 169     ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
 170         browser()->tab_strip_model()->GetActiveWebContents(),
 171         "window.domAutomationController.send("
 172         "    document.defaultView.getComputedStyle(document.body, null)."
 173         "    getPropertyValue('background-color') == 'rgb(245, 245, 220)')",
 174         &result));
 175     EXPECT_EQ(expect_css, result);
 176
 177     result = false;
 178     ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
 179         browser()->tab_strip_model()->GetActiveWebContents(),
 180         "window.domAutomationController.send(document.title == 'Modified')",
 181         &result));
 182     EXPECT_EQ(expect_script, result);
 183   }
 184
 185   base::FilePath preferences_file_;
 186   base::FilePath extensions_dir_;
 187   base::FilePath user_scripts_dir_;
 188   // True unless unauthenticated extension settings are not allowed to be
 189   // loaded in this configuration.
 190   bool unauthenticated_load_allowed_;
 191   // Extensions to load from the command line.
 192   std::vector<base::FilePath::StringType> load_extensions_;
 193
 194   int num_expected_extensions_;
 195 };
 196
 197
 198 // ExtensionsStartupTest
 199 // Ensures that we can startup the browser with --enable-extensions and some
 200 // extensions installed and see them run and do basic things.
 201 typedef ExtensionStartupTestBase ExtensionsStartupTest;
 202
 203 // Broken in official builds, http://crbug.com/474659
 204 IN_PROC_BROWSER_TEST_F(ExtensionsStartupTest, DISABLED_Test) {
 205   WaitForServicesToStart(num_expected_extensions_, true);
 206   TestInjection(true, true);
 207 }
 208
 209 // Broken in official builds, http://crbug.com/474659
 210 // Sometimes times out on Mac.  http://crbug.com/48151
 211 // Tests that disallowing file access on an extension prevents it from injecting
 212 // script into a page with a file URL.
 213 IN_PROC_BROWSER_TEST_F(ExtensionsStartupTest, DISABLED_NoFileAccess) {
 214   WaitForServicesToStart(num_expected_extensions_, true);
 215
 216   // Keep a separate list of extensions for which to disable file access, since
 217   // doing so reloads them.
 218   std::vector<const extensions::Extension*> extension_list;
 219
 220   extensions::ExtensionRegistry* registry =
 221       extensions::ExtensionRegistry::Get(browser()->profile());
 222   for (extensions::ExtensionSet::const_iterator it =
 223            registry->enabled_extensions().begin();
 224        it != registry->enabled_extensions().end(); ++it) {
 225     if ((*it)->location() == extensions::Manifest::COMPONENT)
 226       continue;
 227     if (extensions::util::AllowFileAccess((*it)->id(), browser()->profile()))
 228       extension_list.push_back(it->get());
 229   }
 230
 231   for (size_t i = 0; i < extension_list.size(); ++i) {
 232     content::WindowedNotificationObserver user_scripts_observer(
 233         extensions::NOTIFICATION_USER_SCRIPTS_UPDATED,
 234         content::NotificationService::AllSources());
 235     extensions::util::SetAllowFileAccess(
 236         extension_list[i]->id(), browser()->profile(), false);
 237     user_scripts_observer.Wait();
 238   }
 239
 240   TestInjection(false, false);
 241 }
 242
 243 // ExtensionsLoadTest
 244 // Ensures that we can startup the browser with --load-extension and see them
 245 // run.
 246 class ExtensionsLoadTest : public ExtensionStartupTestBase {
 247  public:
 248   ExtensionsLoadTest() {
 249     base::FilePath one_extension_path;
 250     PathService::Get(chrome::DIR_TEST_DATA, &one_extension_path);
 251     one_extension_path = one_extension_path
 252         .AppendASCII("extensions")
 253         .AppendASCII("good")
 254         .AppendASCII("Extensions")
 255         .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
 256         .AppendASCII("1.0.0.0");
 257     load_extensions_.push_back(one_extension_path.value());
 258   }
 259 };
 260
 261 IN_PROC_BROWSER_TEST_F(ExtensionsLoadTest, Test) {
 262   WaitForServicesToStart(1, true);
 263   TestInjection(true, true);
 264 }
 265
 266 // ExtensionsLoadMultipleTest
 267 // Ensures that we can startup the browser with multiple extensions
 268 // via --load-extension=X1,X2,X3.
 269 class ExtensionsLoadMultipleTest : public ExtensionStartupTestBase {
 270  public:
 271   ExtensionsLoadMultipleTest() {
 272     base::FilePath one_extension_path;
 273     PathService::Get(chrome::DIR_TEST_DATA, &one_extension_path);
 274     one_extension_path = one_extension_path
 275         .AppendASCII("extensions")
 276         .AppendASCII("good")
 277         .AppendASCII("Extensions")
 278         .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
 279         .AppendASCII("1.0.0.0");
 280     load_extensions_.push_back(one_extension_path.value());
 281
 282     base::FilePath second_extension_path;
 283     PathService::Get(chrome::DIR_TEST_DATA, &second_extension_path);
 284     second_extension_path = second_extension_path
 285         .AppendASCII("extensions")
 286         .AppendASCII("app");
 287     load_extensions_.push_back(second_extension_path.value());
 288
 289     base::FilePath third_extension_path;
 290     PathService::Get(chrome::DIR_TEST_DATA, &third_extension_path);
 291     third_extension_path = third_extension_path
 292         .AppendASCII("extensions")
 293         .AppendASCII("app1");
 294     load_extensions_.push_back(third_extension_path.value());
 295
 296     base::FilePath fourth_extension_path;
 297     PathService::Get(chrome::DIR_TEST_DATA, &fourth_extension_path);
 298     fourth_extension_path = fourth_extension_path
 299         .AppendASCII("extensions")
 300         .AppendASCII("app2");
 301     load_extensions_.push_back(fourth_extension_path.value());
 302   }
 303 };
 304
 305 IN_PROC_BROWSER_TEST_F(ExtensionsLoadMultipleTest, Test) {
 306   WaitForServicesToStart(4, true);
 307   TestInjection(true, true);
 308 }