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/file_util.h"
   9 #include "base/files/file_path.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/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   virtual void SetUpCommandLine(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 = JoinString(load_extensions_, ',');
  71       command_line->AppendSwitchNative(switches::kLoadExtension,
  72                                        paths);
  73       command_line->AppendSwitch(switches::kDisableExtensionsFileAccessCheck);
  74     }
  75   }
  76
  77   virtual bool SetUpUserDataDirectory() OVERRIDE {
  78     base::FilePath profile_dir;
  79     PathService::Get(chrome::DIR_USER_DATA, &profile_dir);
  80     profile_dir = profile_dir.AppendASCII(TestingProfile::kTestUserProfileDir);
  81     base::CreateDirectory(profile_dir);
  82
  83     preferences_file_ = profile_dir.Append(chrome::kPreferencesFilename);
  84     user_scripts_dir_ = profile_dir.AppendASCII("User Scripts");
  85     extensions_dir_ = profile_dir.AppendASCII("Extensions");
  86
  87     if (load_extensions_.empty()) {
  88       base::FilePath src_dir;
  89       PathService::Get(chrome::DIR_TEST_DATA, &src_dir);
  90       src_dir = src_dir.AppendASCII("extensions").AppendASCII("good");
  91
  92       base::CopyFile(src_dir.Append(chrome::kPreferencesFilename),
  93                      preferences_file_);
  94       base::CopyDirectory(src_dir.AppendASCII("Extensions"),
  95                           profile_dir, true);  // recursive
  96     }
  97     return true;
  98   }
  99
 100   virtual void TearDown() {
 101     EXPECT_TRUE(base::DeleteFile(preferences_file_, false));
 102
 103     // TODO(phajdan.jr): Check return values of the functions below, carefully.
 104     base::DeleteFile(user_scripts_dir_, true);
 105     base::DeleteFile(extensions_dir_, true);
 106
 107     InProcessBrowserTest::TearDown();
 108   }
 109
 110   void WaitForServicesToStart(int num_expected_extensions,
 111                               bool expect_extensions_enabled) {
 112     ExtensionService* service = extensions::ExtensionSystem::Get(
 113         browser()->profile())->extension_service();
 114
 115     // Count the number of non-component extensions.
 116     int found_extensions = 0;
 117     for (extensions::ExtensionSet::const_iterator it =
 118              service->extensions()->begin();
 119          it != service->extensions()->end(); ++it) {
 120       if ((*it)->location() != extensions::Manifest::COMPONENT)
 121         found_extensions++;
 122     }
 123
 124     if (!unauthenticated_load_allowed_)
 125       num_expected_extensions = 0;
 126
 127     ASSERT_EQ(static_cast<uint32>(num_expected_extensions),
 128               static_cast<uint32>(found_extensions));
 129     ASSERT_EQ(expect_extensions_enabled, service->extensions_enabled());
 130
 131     content::WindowedNotificationObserver user_scripts_observer(
 132         chrome::NOTIFICATION_USER_SCRIPTS_UPDATED,
 133         content::NotificationService::AllSources());
 134     extensions::UserScriptMaster* master =
 135         extensions::ExtensionSystem::Get(browser()->profile())->
 136             user_script_master();
 137     if (!master->ScriptsReady())
 138       user_scripts_observer.Wait();
 139     ASSERT_TRUE(master->ScriptsReady());
 140   }
 141
 142   void TestInjection(bool expect_css, bool expect_script) {
 143     if (!unauthenticated_load_allowed_) {
 144       expect_css = false;
 145       expect_script = false;
 146     }
 147
 148     // Load a page affected by the content script and test to see the effect.
 149     base::FilePath test_file;
 150     PathService::Get(chrome::DIR_TEST_DATA, &test_file);
 151     test_file = test_file.AppendASCII("extensions")
 152                          .AppendASCII("test_file.html");
 153
 154     ui_test_utils::NavigateToURL(browser(), net::FilePathToFileURL(test_file));
 155
 156     bool result = false;
 157     ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
 158         browser()->tab_strip_model()->GetActiveWebContents(),
 159         "window.domAutomationController.send("
 160         "    document.defaultView.getComputedStyle(document.body, null)."
 161         "    getPropertyValue('background-color') == 'rgb(245, 245, 220)')",
 162         &result));
 163     EXPECT_EQ(expect_css, result);
 164
 165     result = false;
 166     ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
 167         browser()->tab_strip_model()->GetActiveWebContents(),
 168         "window.domAutomationController.send(document.title == 'Modified')",
 169         &result));
 170     EXPECT_EQ(expect_script, result);
 171   }
 172
 173   base::FilePath preferences_file_;
 174   base::FilePath extensions_dir_;
 175   base::FilePath user_scripts_dir_;
 176   // True unless unauthenticated extension settings are not allowed to be
 177   // loaded in this configuration.
 178   bool unauthenticated_load_allowed_;
 179   // Extensions to load from the command line.
 180   std::vector<base::FilePath::StringType> load_extensions_;
 181
 182   int num_expected_extensions_;
 183 };
 184
 185
 186 // ExtensionsStartupTest
 187 // Ensures that we can startup the browser with --enable-extensions and some
 188 // extensions installed and see them run and do basic things.
 189 typedef ExtensionStartupTestBase ExtensionsStartupTest;
 190
 191 IN_PROC_BROWSER_TEST_F(ExtensionsStartupTest, Test) {
 192   WaitForServicesToStart(num_expected_extensions_, true);
 193   TestInjection(true, true);
 194 }
 195
 196 // Sometimes times out on Mac.  http://crbug.com/48151
 197 #if defined(OS_MACOSX)
 198 #define MAYBE_NoFileAccess DISABLED_NoFileAccess
 199 #else
 200 #define MAYBE_NoFileAccess NoFileAccess
 201 #endif
 202 // Tests that disallowing file access on an extension prevents it from injecting
 203 // script into a page with a file URL.
 204 IN_PROC_BROWSER_TEST_F(ExtensionsStartupTest, MAYBE_NoFileAccess) {
 205   WaitForServicesToStart(num_expected_extensions_, true);
 206
 207   // Keep a separate list of extensions for which to disable file access, since
 208   // doing so reloads them.
 209   std::vector<const extensions::Extension*> extension_list;
 210
 211   extensions::ExtensionRegistry* registry =
 212       extensions::ExtensionRegistry::Get(browser()->profile());
 213   for (extensions::ExtensionSet::const_iterator it =
 214            registry->enabled_extensions().begin();
 215        it != registry->enabled_extensions().end(); ++it) {
 216     if ((*it)->location() == extensions::Manifest::COMPONENT)
 217       continue;
 218     if (extensions::util::AllowFileAccess((*it)->id(), browser()->profile()))
 219       extension_list.push_back(it->get());
 220   }
 221
 222   for (size_t i = 0; i < extension_list.size(); ++i) {
 223     content::WindowedNotificationObserver user_scripts_observer(
 224         chrome::NOTIFICATION_USER_SCRIPTS_UPDATED,
 225         content::NotificationService::AllSources());
 226     extensions::util::SetAllowFileAccess(
 227         extension_list[i]->id(), browser()->profile(), false);
 228     user_scripts_observer.Wait();
 229   }
 230
 231   TestInjection(false, false);
 232 }
 233
 234 // ExtensionsLoadTest
 235 // Ensures that we can startup the browser with --load-extension and see them
 236 // run.
 237 class ExtensionsLoadTest : public ExtensionStartupTestBase {
 238  public:
 239   ExtensionsLoadTest() {
 240     base::FilePath one_extension_path;
 241     PathService::Get(chrome::DIR_TEST_DATA, &one_extension_path);
 242     one_extension_path = one_extension_path
 243         .AppendASCII("extensions")
 244         .AppendASCII("good")
 245         .AppendASCII("Extensions")
 246         .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
 247         .AppendASCII("1.0.0.0");
 248     load_extensions_.push_back(one_extension_path.value());
 249   }
 250 };
 251
 252 // Fails inconsistently on Linux x64. http://crbug.com/80961
 253 // TODO(dpapad): Has not failed since October 2011, let's reenable, monitor
 254 // and act accordingly.
 255 IN_PROC_BROWSER_TEST_F(ExtensionsLoadTest, Test) {
 256   WaitForServicesToStart(1, true);
 257   TestInjection(true, true);
 258 }
 259
 260 // ExtensionsLoadMultipleTest
 261 // Ensures that we can startup the browser with multiple extensions
 262 // via --load-extension=X1,X2,X3.
 263 class ExtensionsLoadMultipleTest : public ExtensionStartupTestBase {
 264  public:
 265   ExtensionsLoadMultipleTest() {
 266     base::FilePath one_extension_path;
 267     PathService::Get(chrome::DIR_TEST_DATA, &one_extension_path);
 268     one_extension_path = one_extension_path
 269         .AppendASCII("extensions")
 270         .AppendASCII("good")
 271         .AppendASCII("Extensions")
 272         .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
 273         .AppendASCII("1.0.0.0");
 274     load_extensions_.push_back(one_extension_path.value());
 275
 276     base::FilePath second_extension_path;
 277     PathService::Get(chrome::DIR_TEST_DATA, &second_extension_path);
 278     second_extension_path = second_extension_path
 279         .AppendASCII("extensions")
 280         .AppendASCII("app");
 281     load_extensions_.push_back(second_extension_path.value());
 282
 283     base::FilePath third_extension_path;
 284     PathService::Get(chrome::DIR_TEST_DATA, &third_extension_path);
 285     third_extension_path = third_extension_path
 286         .AppendASCII("extensions")
 287         .AppendASCII("app1");
 288     load_extensions_.push_back(third_extension_path.value());
 289
 290     base::FilePath fourth_extension_path;
 291     PathService::Get(chrome::DIR_TEST_DATA, &fourth_extension_path);
 292     fourth_extension_path = fourth_extension_path
 293         .AppendASCII("extensions")
 294         .AppendASCII("app2");
 295     load_extensions_.push_back(fourth_extension_path.value());
 296   }
 297 };
 298
 299 IN_PROC_BROWSER_TEST_F(ExtensionsLoadMultipleTest, Test) {
 300   WaitForServicesToStart(4, true);
 301   TestInjection(true, true);
 302 }