chrome/browser/errorpage_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 "base/bind.h"
   6 #include "base/command_line.h"
   7 #include "base/compiler_specific.h"
   8 #include "base/logging.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "base/path_service.h"
  12 #include "base/prefs/pref_service.h"
  13 #include "base/strings/stringprintf.h"
  14 #include "base/strings/utf_string_conversions.h"
  15 #include "base/synchronization/lock.h"
  16 #include "chrome/browser/browsing_data/browsing_data_helper.h"
  17 #include "chrome/browser/browsing_data/browsing_data_remover.h"
  18 #include "chrome/browser/net/url_request_mock_util.h"
  19 #include "chrome/browser/profiles/profile.h"
  20 #include "chrome/browser/search_engines/ui_thread_search_terms_data.h"
  21 #include "chrome/browser/ui/browser.h"
  22 #include "chrome/browser/ui/browser_commands.h"
  23 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  24 #include "chrome/common/chrome_paths.h"
  25 #include "chrome/common/chrome_switches.h"
  26 #include "chrome/common/pref_names.h"
  27 #include "chrome/grit/generated_resources.h"
  28 #include "chrome/test/base/in_process_browser_test.h"
  29 #include "chrome/test/base/ui_test_utils.h"
  30 #include "components/google/core/browser/google_util.h"
  31 #include "content/public/browser/browser_thread.h"
  32 #include "content/public/browser/notification_service.h"
  33 #include "content/public/browser/notification_types.h"
  34 #include "content/public/browser/render_frame_host.h"
  35 #include "content/public/browser/render_view_host.h"
  36 #include "content/public/browser/web_contents.h"
  37 #include "content/public/browser/web_contents_observer.h"
  38 #include "content/public/test/browser_test_utils.h"
  39 #include "content/public/test/test_navigation_observer.h"
  40 #include "net/base/net_errors.h"
  41 #include "net/base/net_util.h"
  42 #include "net/http/failing_http_transaction_factory.h"
  43 #include "net/http/http_cache.h"
  44 #include "net/test/spawned_test_server/spawned_test_server.h"
  45 #include "net/test/url_request/url_request_failed_job.h"
  46 #include "net/test/url_request/url_request_mock_http_job.h"
  47 #include "net/url_request/url_request_context.h"
  48 #include "net/url_request/url_request_context_getter.h"
  49 #include "net/url_request/url_request_filter.h"
  50 #include "net/url_request/url_request_interceptor.h"
  51 #include "net/url_request/url_request_job.h"
  52 #include "net/url_request/url_request_test_job.h"
  53 #include "net/url_request/url_request_test_util.h"
  54 #include "ui/base/l10n/l10n_util.h"
  55
  56 #if defined(OS_CHROMEOS)
  57 #include "chrome/browser/browser_process.h"
  58 #include "chrome/browser/chromeos/chrome_browser_main_chromeos.h"
  59 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
  60 #include "chrome/browser/chromeos/policy/stub_enterprise_install_attributes.h"
  61 #include "chrome/grit/generated_resources.h"
  62 #include "components/policy/core/common/mock_configuration_policy_provider.h"
  63 #include "components/policy/core/common/policy_types.h"
  64 #include "content/public/test/browser_test_utils.h"
  65 #include "ui/base/l10n/l10n_util.h"
  66 #endif
  67
  68 using content::BrowserThread;
  69 using content::NavigationController;
  70 using net::URLRequestFailedJob;
  71 using net::URLRequestTestJob;
  72
  73 namespace {
  74
  75 // Returns true if |text| is displayed on the page |browser| is currently
  76 // displaying.  Uses "innerText", so will miss hidden text, and whitespace
  77 // space handling may be weird.
  78 bool WARN_UNUSED_RESULT IsDisplayingText(Browser* browser,
  79                                          const std::string& text) {
  80   std::string command = base::StringPrintf(
  81       "var textContent = document.body.innerText;"
  82       "var hasText = textContent.indexOf('%s') >= 0;"
  83       "domAutomationController.send(hasText);",
  84       text.c_str());
  85   bool result = false;
  86   EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
  87       browser->tab_strip_model()->GetActiveWebContents(), command, &result));
  88   return result;
  89 }
  90
  91 // Expands the more box on the currently displayed error page.
  92 void ToggleHelpBox(Browser* browser) {
  93   EXPECT_TRUE(content::ExecuteScript(
  94       browser->tab_strip_model()->GetActiveWebContents(),
  95       "document.getElementById('details-button').click();"));
  96 }
  97
  98 // Returns true if |browser| is displaying the text representation of
  99 // |error_code| on the current page.
 100 bool WARN_UNUSED_RESULT IsDisplayingNetError(Browser* browser,
 101                                              net::Error error_code) {
 102   return IsDisplayingText(browser, net::ErrorToShortString(error_code));
 103 }
 104
 105 // Checks that the local error page is being displayed, without remotely
 106 // retrieved navigation corrections, and with the specified error code.
 107 void ExpectDisplayingLocalErrorPage(Browser* browser, net::Error error_code) {
 108   // Expand the help box so innerText will include text below the fold.
 109   ToggleHelpBox(browser);
 110
 111   EXPECT_TRUE(IsDisplayingNetError(browser, error_code));
 112
 113   // Locally generated error pages should not have navigation corrections.
 114   EXPECT_FALSE(IsDisplayingText(browser, "http://correction1/"));
 115   EXPECT_FALSE(IsDisplayingText(browser, "http://correction2/"));
 116
 117   // Locally generated error pages should not have a populated search box.
 118   bool search_box_populated = false;
 119   ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
 120       browser->tab_strip_model()->GetActiveWebContents(),
 121       "var searchText = document.getElementById('search-box').value;"
 122           "domAutomationController.send(searchText == 'search query');",
 123       &search_box_populated));
 124   EXPECT_FALSE(search_box_populated);
 125 }
 126
 127 // Checks that an error page with information retrieved from the navigation
 128 // correction service is being displayed, with the specified specified error
 129 // code.
 130 void ExpectDisplayingNavigationCorrections(Browser* browser,
 131                                            net::Error error_code) {
 132   // Expand the help box so innerText will include text below the fold.
 133   ToggleHelpBox(browser);
 134
 135   EXPECT_TRUE(IsDisplayingNetError(browser, error_code));
 136
 137   // Check that the mock navigation corrections are displayed.
 138   EXPECT_TRUE(IsDisplayingText(browser, "http://correction1/"));
 139   EXPECT_TRUE(IsDisplayingText(browser, "http://correction2/"));
 140
 141   // Check that the search box is populated correctly.
 142   bool search_box_populated = false;
 143   ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
 144       browser->tab_strip_model()->GetActiveWebContents(),
 145       "var searchText = document.getElementById('search-box').value;"
 146           "domAutomationController.send(searchText == 'search query');",
 147       &search_box_populated));
 148   EXPECT_TRUE(search_box_populated);
 149 }
 150
 151 std::string GetShowSavedButtonLabel() {
 152   return l10n_util::GetStringUTF8(IDS_ERRORPAGES_BUTTON_SHOW_SAVED_COPY);
 153 }
 154
 155 void AddInterceptorForURL(
 156     const GURL& url,
 157     scoped_ptr<net::URLRequestInterceptor> handler) {
 158   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 159   net::URLRequestFilter::GetInstance()->AddUrlInterceptor(
 160       url, handler.Pass());
 161 }
 162
 163 // An interceptor that fails a configurable number of requests, then succeeds
 164 // all requests after that, keeping count of failures and successes.
 165 class FailFirstNRequestsInterceptor : public net::URLRequestInterceptor {
 166  public:
 167   explicit FailFirstNRequestsInterceptor(int requests_to_fail)
 168       : requests_(0), failures_(0), requests_to_fail_(requests_to_fail) {}
 169   ~FailFirstNRequestsInterceptor() override {}
 170
 171   // net::URLRequestInterceptor implementation
 172   net::URLRequestJob* MaybeInterceptRequest(
 173       net::URLRequest* request,
 174       net::NetworkDelegate* network_delegate) const override {
 175     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 176     requests_++;
 177     if (failures_ < requests_to_fail_) {
 178       failures_++;
 179       // Note: net::ERR_CONNECTION_RESET does not summon the Link Doctor; see
 180       // NetErrorHelperCore::GetErrorPageURL.
 181       return new URLRequestFailedJob(request,
 182                                      network_delegate,
 183                                      net::ERR_CONNECTION_RESET);
 184     } else {
 185       return new URLRequestTestJob(request, network_delegate,
 186                                    URLRequestTestJob::test_headers(),
 187                                    URLRequestTestJob::test_data_1(),
 188                                    true);
 189     }
 190   }
 191
 192   int requests() const { return requests_; }
 193   int failures() const { return failures_; }
 194
 195  private:
 196   // These are mutable because MaybeCreateJob is const but we want this state
 197   // for testing.
 198   mutable int requests_;
 199   mutable int failures_;
 200   int requests_to_fail_;
 201
 202   DISALLOW_COPY_AND_ASSIGN(FailFirstNRequestsInterceptor);
 203 };
 204
 205 // An interceptor that serves LinkDoctor responses.  It also allows waiting
 206 // until a certain number of requests have been sent.
 207 // TODO(mmenke):  Wait until responses have been received instead.
 208 class LinkDoctorInterceptor : public net::URLRequestInterceptor {
 209  public:
 210   LinkDoctorInterceptor() : num_requests_(0),
 211                             requests_to_wait_for_(-1),
 212                             weak_factory_(this) {
 213   }
 214
 215   ~LinkDoctorInterceptor() override {}
 216
 217   // net::URLRequestInterceptor implementation
 218   net::URLRequestJob* MaybeInterceptRequest(
 219       net::URLRequest* request,
 220       net::NetworkDelegate* network_delegate) const override {
 221     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 222
 223     BrowserThread::PostTask(
 224         BrowserThread::UI, FROM_HERE,
 225         base::Bind(&LinkDoctorInterceptor::RequestCreated,
 226                    weak_factory_.GetWeakPtr()));
 227
 228     base::FilePath root_http;
 229     PathService::Get(chrome::DIR_TEST_DATA, &root_http);
 230     return new net::URLRequestMockHTTPJob(
 231         request,
 232         network_delegate,
 233         root_http.AppendASCII("mock-link-doctor.json"),
 234         BrowserThread::GetBlockingPool()->GetTaskRunnerWithShutdownBehavior(
 235             base::SequencedWorkerPool::SKIP_ON_SHUTDOWN));
 236   }
 237
 238   void WaitForRequests(int requests_to_wait_for) {
 239     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 240     DCHECK_EQ(-1, requests_to_wait_for_);
 241     DCHECK(!run_loop_);
 242
 243     if (requests_to_wait_for >= num_requests_)
 244       return;
 245
 246     requests_to_wait_for_ = requests_to_wait_for;
 247     run_loop_.reset(new base::RunLoop());
 248     run_loop_->Run();
 249     run_loop_.reset();
 250     requests_to_wait_for_ = -1;
 251     EXPECT_EQ(num_requests_, requests_to_wait_for);
 252   }
 253
 254   // It is up to the caller to wait until all relevant requests has been
 255   // created, either through calling WaitForRequests or some other manner,
 256   // before calling this method.
 257   int num_requests() const {
 258     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 259     return num_requests_;
 260   }
 261
 262  private:
 263   void RequestCreated() {
 264     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 265
 266     num_requests_++;
 267     if (num_requests_ == requests_to_wait_for_)
 268       run_loop_->Quit();
 269   }
 270
 271   // These are only used on the UI thread.
 272   int num_requests_;
 273   int requests_to_wait_for_;
 274   scoped_ptr<base::RunLoop> run_loop_;
 275
 276   // This prevents any risk of flake if any test doesn't wait for a request
 277   // it sent.  Mutable so it can be accessed from a const function.
 278   mutable base::WeakPtrFactory<LinkDoctorInterceptor> weak_factory_;
 279
 280   DISALLOW_COPY_AND_ASSIGN(LinkDoctorInterceptor);
 281 };
 282
 283 void InstallMockInterceptors(
 284     const GURL& search_url,
 285     scoped_ptr<net::URLRequestInterceptor> link_doctor_interceptor) {
 286   chrome_browser_net::SetUrlRequestMocksEnabled(true);
 287
 288   AddInterceptorForURL(google_util::LinkDoctorBaseURL(),
 289                        link_doctor_interceptor.Pass());
 290
 291   // Add a mock for the search engine the error page will use.
 292   base::FilePath root_http;
 293   PathService::Get(chrome::DIR_TEST_DATA, &root_http);
 294   net::URLRequestFilter::GetInstance()->AddHostnameInterceptor(
 295       search_url.scheme(), search_url.host(),
 296       net::URLRequestMockHTTPJob::CreateInterceptorForSingleFile(
 297           root_http.AppendASCII("title3.html"),
 298           BrowserThread::GetBlockingPool()));
 299 }
 300
 301 class ErrorPageTest : public InProcessBrowserTest {
 302  public:
 303   enum HistoryNavigationDirection {
 304     HISTORY_NAVIGATE_BACK,
 305     HISTORY_NAVIGATE_FORWARD,
 306   };
 307
 308   ErrorPageTest() : link_doctor_interceptor_(NULL) {}
 309   ~ErrorPageTest() override {}
 310
 311   // Navigates the active tab to a mock url created for the file at |file_path|.
 312   // Needed for StaleCacheStatus and StaleCacheStatusFailedCorrections tests.
 313   void SetUpCommandLine(base::CommandLine* command_line) override {
 314     command_line->AppendSwitchASCII(switches::kShowSavedCopy,
 315                                     switches::kEnableShowSavedCopyPrimary);
 316   }
 317
 318   // Navigates the active tab to a mock url created for the file at |file_path|.
 319   void NavigateToFileURL(const base::FilePath::StringType& file_path) {
 320     ui_test_utils::NavigateToURL(
 321         browser(),
 322         net::URLRequestMockHTTPJob::GetMockUrl(base::FilePath(file_path)));
 323   }
 324
 325   // Navigates to the given URL and waits for |num_navigations| to occur, and
 326   // the title to change to |expected_title|.
 327   void NavigateToURLAndWaitForTitle(const GURL& url,
 328                                     const std::string& expected_title,
 329                                     int num_navigations) {
 330     content::TitleWatcher title_watcher(
 331         browser()->tab_strip_model()->GetActiveWebContents(),
 332         base::ASCIIToUTF16(expected_title));
 333
 334     ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
 335         browser(), url, num_navigations);
 336
 337     EXPECT_EQ(base::ASCIIToUTF16(expected_title),
 338               title_watcher.WaitAndGetTitle());
 339   }
 340
 341   // Navigates back in the history and waits for |num_navigations| to occur, and
 342   // the title to change to |expected_title|.
 343   void GoBackAndWaitForTitle(const std::string& expected_title,
 344                              int num_navigations) {
 345     NavigateHistoryAndWaitForTitle(expected_title,
 346                                    num_navigations,
 347                                    HISTORY_NAVIGATE_BACK);
 348   }
 349
 350   // Navigates forward in the history and waits for |num_navigations| to occur,
 351   // and the title to change to |expected_title|.
 352   void GoForwardAndWaitForTitle(const std::string& expected_title,
 353                                 int num_navigations) {
 354     NavigateHistoryAndWaitForTitle(expected_title,
 355                                    num_navigations,
 356                                    HISTORY_NAVIGATE_FORWARD);
 357   }
 358
 359   void GoBackAndWaitForNavigations(int num_navigations) {
 360     NavigateHistory(num_navigations, HISTORY_NAVIGATE_BACK);
 361   }
 362
 363   void GoForwardAndWaitForNavigations(int num_navigations) {
 364     NavigateHistory(num_navigations, HISTORY_NAVIGATE_FORWARD);
 365   }
 366
 367   // Confirms that the javascript variable indicating whether or not we have
 368   // a stale copy in the cache has been set to |expected|, and that the
 369   // stale load button is or isn't there based on the same expectation.
 370   testing::AssertionResult ProbeStaleCopyValue(bool expected) {
 371     const char* js_cache_probe =
 372         "try {\n"
 373         "    domAutomationController.send(\n"
 374         "        loadTimeData.valueExists('showSavedCopyButton') ?"
 375         "            'yes' : 'no');\n"
 376         "} catch (e) {\n"
 377         "    domAutomationController.send(e.message);\n"
 378         "}\n";
 379
 380     std::string result;
 381     bool ret =
 382         content::ExecuteScriptAndExtractString(
 383             browser()->tab_strip_model()->GetActiveWebContents(),
 384             js_cache_probe,
 385             &result);
 386     if (!ret) {
 387       return testing::AssertionFailure()
 388           << "Failing return from ExecuteScriptAndExtractString.";
 389     }
 390
 391     if ((expected && "yes" == result) || (!expected && "no" == result))
 392       return testing::AssertionSuccess();
 393
 394     return testing::AssertionFailure() << "Cache probe result is " << result;
 395   }
 396
 397   testing::AssertionResult ReloadStaleCopyFromCache() {
 398     const char* js_reload_script =
 399         "try {\n"
 400         "    document.getElementById('show-saved-copy-button').click();\n"
 401         "    domAutomationController.send('success');\n"
 402         "} catch (e) {\n"
 403         "    domAutomationController.send(e.message);\n"
 404         "}\n";
 405
 406     std::string result;
 407     bool ret = content::ExecuteScriptAndExtractString(
 408         browser()->tab_strip_model()->GetActiveWebContents(),
 409         js_reload_script,
 410         &result);
 411     EXPECT_TRUE(ret);
 412     if (!ret)
 413       return testing::AssertionFailure();
 414     return ("success" == result ? testing::AssertionSuccess() :
 415             (testing::AssertionFailure() << "Exception message is " << result));
 416   }
 417
 418   LinkDoctorInterceptor* link_doctor_interceptor() {
 419     return link_doctor_interceptor_;
 420   }
 421
 422  protected:
 423   void SetUpOnMainThread() override {
 424     link_doctor_interceptor_ = new LinkDoctorInterceptor();
 425     scoped_ptr<net::URLRequestInterceptor> owned_interceptor(
 426         link_doctor_interceptor_);
 427     // Ownership of the |interceptor_| is passed to an object the IO thread, but
 428     // a pointer is kept in the test fixture.  As soon as anything calls
 429     // URLRequestFilter::ClearHandlers(), |interceptor_| can become invalid.
 430     UIThreadSearchTermsData search_terms_data(browser()->profile());
 431     BrowserThread::PostTask(
 432         BrowserThread::IO, FROM_HERE,
 433         base::Bind(&InstallMockInterceptors,
 434                    GURL(search_terms_data.GoogleBaseURLValue()),
 435                    base::Passed(&owned_interceptor)));
 436   }
 437
 438   // Returns a GURL that results in a DNS error.
 439   GURL GetDnsErrorURL() const {
 440     return URLRequestFailedJob::GetMockHttpUrl(net::ERR_NAME_NOT_RESOLVED);
 441   }
 442
 443  private:
 444   // Navigates the browser the indicated direction in the history and waits for
 445   // |num_navigations| to occur and the title to change to |expected_title|.
 446   void NavigateHistoryAndWaitForTitle(const std::string& expected_title,
 447                                       int num_navigations,
 448                                       HistoryNavigationDirection direction) {
 449     content::TitleWatcher title_watcher(
 450         browser()->tab_strip_model()->GetActiveWebContents(),
 451         base::ASCIIToUTF16(expected_title));
 452
 453     NavigateHistory(num_navigations, direction);
 454
 455     EXPECT_EQ(title_watcher.WaitAndGetTitle(),
 456               base::ASCIIToUTF16(expected_title));
 457   }
 458
 459   void NavigateHistory(int num_navigations,
 460                        HistoryNavigationDirection direction) {
 461     content::TestNavigationObserver test_navigation_observer(
 462         browser()->tab_strip_model()->GetActiveWebContents(),
 463         num_navigations);
 464     if (direction == HISTORY_NAVIGATE_BACK) {
 465       chrome::GoBack(browser(), CURRENT_TAB);
 466     } else if (direction == HISTORY_NAVIGATE_FORWARD) {
 467       chrome::GoForward(browser(), CURRENT_TAB);
 468     } else {
 469       FAIL();
 470     }
 471     test_navigation_observer.Wait();
 472   }
 473
 474   LinkDoctorInterceptor* link_doctor_interceptor_;
 475 };
 476
 477 class TestFailProvisionalLoadObserver : public content::WebContentsObserver {
 478  public:
 479   explicit TestFailProvisionalLoadObserver(content::WebContents* contents)
 480       : content::WebContentsObserver(contents) {}
 481   ~TestFailProvisionalLoadObserver() override {}
 482
 483   // This method is invoked when the provisional load failed.
 484   void DidFailProvisionalLoad(
 485       content::RenderFrameHost* render_frame_host,
 486       const GURL& validated_url,
 487       int error_code,
 488       const base::string16& error_description,
 489       bool was_ignored_by_handler) override {
 490     fail_url_ = validated_url;
 491   }
 492
 493   const GURL& fail_url() const { return fail_url_; }
 494
 495  private:
 496   GURL fail_url_;
 497
 498   DISALLOW_COPY_AND_ASSIGN(TestFailProvisionalLoadObserver);
 499 };
 500
 501 void InterceptNetworkTransactions(net::URLRequestContextGetter* getter,
 502                                   net::Error error) {
 503   DCHECK(content::BrowserThread::CurrentlyOn(BrowserThread::IO));
 504   net::HttpCache* cache(
 505       getter->GetURLRequestContext()->http_transaction_factory()->GetCache());
 506   DCHECK(cache);
 507   scoped_ptr<net::HttpTransactionFactory> factory(
 508       new net::FailingHttpTransactionFactory(cache->GetSession(), error));
 509   // Throw away old version; since this is a a browser test, we don't
 510   // need to restore the old state.
 511   cache->SetHttpNetworkTransactionFactoryForTesting(factory.Pass());
 512 }
 513
 514 // Test that a DNS error occuring in the main frame redirects to an error page.
 515 IN_PROC_BROWSER_TEST_F(ErrorPageTest, DNSError_Basic) {
 516   // The first navigation should fail, and the second one should be the error
 517   // page.
 518   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
 519        browser(), GetDnsErrorURL(), 2);
 520   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 521   EXPECT_EQ(1, link_doctor_interceptor()->num_requests());
 522 }
 523
 524 // Test that a DNS error occuring in the main frame does not result in an
 525 // additional session history entry.
 526 IN_PROC_BROWSER_TEST_F(ErrorPageTest, DNSError_GoBack1) {
 527   NavigateToFileURL(FILE_PATH_LITERAL("title2.html"));
 528   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
 529        browser(), GetDnsErrorURL(), 2);
 530   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 531   GoBackAndWaitForTitle("Title Of Awesomeness", 1);
 532   EXPECT_EQ(1, link_doctor_interceptor()->num_requests());
 533 }
 534
 535 // Test that a DNS error occuring in the main frame does not result in an
 536 // additional session history entry.
 537 IN_PROC_BROWSER_TEST_F(ErrorPageTest, DNSError_GoBack2) {
 538   NavigateToFileURL(FILE_PATH_LITERAL("title2.html"));
 539
 540   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
 541        browser(), GetDnsErrorURL(), 2);
 542   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 543   EXPECT_EQ(1, link_doctor_interceptor()->num_requests());
 544
 545   NavigateToFileURL(FILE_PATH_LITERAL("title3.html"));
 546
 547   GoBackAndWaitForNavigations(2);
 548   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 549   EXPECT_EQ(2, link_doctor_interceptor()->num_requests());
 550
 551   GoBackAndWaitForTitle("Title Of Awesomeness", 1);
 552   EXPECT_EQ(2, link_doctor_interceptor()->num_requests());
 553 }
 554
 555 // Test that a DNS error occuring in the main frame does not result in an
 556 // additional session history entry.
 557 IN_PROC_BROWSER_TEST_F(ErrorPageTest, DNSError_GoBack2AndForward) {
 558   NavigateToFileURL(FILE_PATH_LITERAL("title2.html"));
 559
 560   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
 561        browser(), GetDnsErrorURL(), 2);
 562   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 563   EXPECT_EQ(1, link_doctor_interceptor()->num_requests());
 564
 565   NavigateToFileURL(FILE_PATH_LITERAL("title3.html"));
 566
 567   GoBackAndWaitForNavigations(2);
 568   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 569   EXPECT_EQ(2, link_doctor_interceptor()->num_requests());
 570
 571   GoBackAndWaitForTitle("Title Of Awesomeness", 1);
 572
 573   GoForwardAndWaitForNavigations(2);
 574   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 575   EXPECT_EQ(3, link_doctor_interceptor()->num_requests());
 576 }
 577
 578 // Test that a DNS error occuring in the main frame does not result in an
 579 // additional session history entry.
 580 IN_PROC_BROWSER_TEST_F(ErrorPageTest, DNSError_GoBack2Forward2) {
 581   NavigateToFileURL(FILE_PATH_LITERAL("title3.html"));
 582
 583   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
 584        browser(), GetDnsErrorURL(), 2);
 585   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 586   EXPECT_EQ(1, link_doctor_interceptor()->num_requests());
 587
 588   NavigateToFileURL(FILE_PATH_LITERAL("title2.html"));
 589
 590   GoBackAndWaitForNavigations(2);
 591   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 592   EXPECT_EQ(2, link_doctor_interceptor()->num_requests());
 593
 594   GoBackAndWaitForTitle("Title Of More Awesomeness", 1);
 595
 596   GoForwardAndWaitForNavigations(2);
 597   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 598   EXPECT_EQ(3, link_doctor_interceptor()->num_requests());
 599
 600   GoForwardAndWaitForTitle("Title Of Awesomeness", 1);
 601   EXPECT_EQ(3, link_doctor_interceptor()->num_requests());
 602 }
 603
 604 // Test that the search button on a DNS error page works.
 605 IN_PROC_BROWSER_TEST_F(ErrorPageTest, DNSError_DoSearch) {
 606   // The first navigation should fail, and the second one should be the error
 607   // page.
 608   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
 609        browser(), GetDnsErrorURL(), 2);
 610   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 611   EXPECT_EQ(1, link_doctor_interceptor()->num_requests());
 612
 613   content::WebContents* web_contents =
 614       browser()->tab_strip_model()->GetActiveWebContents();
 615
 616   // Do a search and make sure the browser ends up at the right page.
 617   content::TestNavigationObserver nav_observer(web_contents, 1);
 618   content::TitleWatcher title_watcher(
 619       web_contents,
 620       base::ASCIIToUTF16("Title Of More Awesomeness"));
 621   // Can't use content::ExecuteScript because it waits for scripts to send
 622   // notification that they've run, and scripts that trigger a navigation may
 623   // not send that notification.
 624   web_contents->GetMainFrame()->ExecuteJavaScript(
 625       base::ASCIIToUTF16("document.getElementById('search-button').click();"));
 626   nav_observer.Wait();
 627   EXPECT_EQ(base::ASCIIToUTF16("Title Of More Awesomeness"),
 628             title_watcher.WaitAndGetTitle());
 629
 630   // There should have been another Link Doctor request, for tracking purposes.
 631   // Have to wait for it, since the search page does not depend on having
 632   // sent the tracking request.
 633   link_doctor_interceptor()->WaitForRequests(2);
 634   EXPECT_EQ(2, link_doctor_interceptor()->num_requests());
 635
 636   // Check the path and query string.
 637   std::string url;
 638   ASSERT_TRUE(content::ExecuteScriptAndExtractString(
 639                   browser()->tab_strip_model()->GetActiveWebContents(),
 640                   "domAutomationController.send(window.location.href);",
 641                   &url));
 642   EXPECT_EQ("/search", GURL(url).path());
 643   EXPECT_EQ("q=search%20query", GURL(url).query());
 644
 645   // Go back to the error page, to make sure the history is correct.
 646   GoBackAndWaitForNavigations(2);
 647   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 648   EXPECT_EQ(3, link_doctor_interceptor()->num_requests());
 649 }
 650
 651 // Test that the reload button on a DNS error page works.
 652 IN_PROC_BROWSER_TEST_F(ErrorPageTest, DNSError_DoReload) {
 653   // The first navigation should fail, and the second one should be the error
 654   // page.
 655   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
 656        browser(), GetDnsErrorURL(), 2);
 657   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 658   EXPECT_EQ(1, link_doctor_interceptor()->num_requests());
 659
 660   content::WebContents* web_contents =
 661       browser()->tab_strip_model()->GetActiveWebContents();
 662
 663   // Clicking the reload button should load the error page again, and there
 664   // should be two commits, as before.
 665   content::TestNavigationObserver nav_observer(web_contents, 2);
 666   // Can't use content::ExecuteScript because it waits for scripts to send
 667   // notification that they've run, and scripts that trigger a navigation may
 668   // not send that notification.
 669   web_contents->GetMainFrame()->ExecuteJavaScript(
 670       base::ASCIIToUTF16("document.getElementById('reload-button').click();"));
 671   nav_observer.Wait();
 672   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 673
 674   // There should have two more requests to the correction service:  One for the
 675   // new error page, and one for tracking purposes.  Have to make sure to wait
 676   // for the tracking request, since the new error page does not depend on it.
 677   link_doctor_interceptor()->WaitForRequests(3);
 678   EXPECT_EQ(3, link_doctor_interceptor()->num_requests());
 679 }
 680
 681 // Test that clicking links on a DNS error page works.
 682 IN_PROC_BROWSER_TEST_F(ErrorPageTest, DNSError_DoClickLink) {
 683   // The first navigation should fail, and the second one should be the error
 684   // page.
 685   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
 686        browser(), GetDnsErrorURL(), 2);
 687   ExpectDisplayingNavigationCorrections(browser(), net::ERR_NAME_NOT_RESOLVED);
 688   EXPECT_EQ(1, link_doctor_interceptor()->num_requests());
 689
 690   content::WebContents* web_contents =
 691       browser()->tab_strip_model()->GetActiveWebContents();
 692
 693   // Simulate a click on a link.
 694
 695   content::TitleWatcher title_watcher(
 696       web_contents,
 697       base::ASCIIToUTF16("Title Of Awesomeness"));
 698   std::string link_selector =
 699       "document.querySelector('a[href=\"http://mock.http/title2.html\"]')";
 700   // The tracking request is triggered by onmousedown, so it catches middle
 701   // mouse button clicks, as well as left clicks.
 702   web_contents->GetMainFrame()->ExecuteJavaScript(
 703       base::ASCIIToUTF16(link_selector + ".onmousedown();"));
 704   // Can't use content::ExecuteScript because it waits for scripts to send
 705   // notification that they've run, and scripts that trigger a navigation may
 706   // not send that notification.
 707   web_contents->GetMainFrame()->ExecuteJavaScript(
 708       base::ASCIIToUTF16(link_selector + ".click();"));
 709   EXPECT_EQ(base::ASCIIToUTF16("Title Of Awesomeness"),
 710             title_watcher.WaitAndGetTitle());
 711
 712   // There should have been a tracking request to the correction service.  Have
 713   // to make sure to wait the tracking request, since the new page does not
 714   // depend on it.
 715   link_doctor_interceptor()->WaitForRequests(2);
 716   EXPECT_EQ(2, link_doctor_interceptor()->num_requests());
 717 }
 718
 719 // Test that a DNS error occuring in an iframe does not result in showing
 720 // navigation corrections.
 721 IN_PROC_BROWSER_TEST_F(ErrorPageTest, IFrameDNSError_Basic) {
 722   NavigateToURLAndWaitForTitle(
 723       net::URLRequestMockHTTPJob::GetMockUrl(
 724           base::FilePath(FILE_PATH_LITERAL("iframe_dns_error.html"))),
 725       "Blah",
 726       1);
 727   // We expect to have two history entries, since we started off with navigation
 728   // to "about:blank" and then navigated to "iframe_dns_error.html".
 729   EXPECT_EQ(2,
 730       browser()->tab_strip_model()->GetActiveWebContents()->
 731           GetController().GetEntryCount());
 732   EXPECT_EQ(0, link_doctor_interceptor()->num_requests());
 733 }
 734
 735 // This test fails regularly on win_rel trybots. See crbug.com/121540
 736 #if defined(OS_WIN)
 737 #define MAYBE_IFrameDNSError_GoBack DISABLED_IFrameDNSError_GoBack
 738 #else
 739 #define MAYBE_IFrameDNSError_GoBack IFrameDNSError_GoBack
 740 #endif
 741 // Test that a DNS error occuring in an iframe does not result in an
 742 // additional session history entry.
 743 IN_PROC_BROWSER_TEST_F(ErrorPageTest, MAYBE_IFrameDNSError_GoBack) {
 744   NavigateToFileURL(FILE_PATH_LITERAL("title2.html"));
 745   NavigateToFileURL(FILE_PATH_LITERAL("iframe_dns_error.html"));
 746   GoBackAndWaitForTitle("Title Of Awesomeness", 1);
 747   EXPECT_EQ(0, link_doctor_interceptor()->num_requests());
 748 }
 749
 750 // This test fails regularly on win_rel trybots. See crbug.com/121540
 751 //
 752 // This fails on linux_aura bringup: http://crbug.com/163931
 753 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(USE_AURA))
 754 #define MAYBE_IFrameDNSError_GoBackAndForward DISABLED_IFrameDNSError_GoBackAndForward
 755 #else
 756 #define MAYBE_IFrameDNSError_GoBackAndForward IFrameDNSError_GoBackAndForward
 757 #endif
 758 // Test that a DNS error occuring in an iframe does not result in an
 759 // additional session history entry.
 760 IN_PROC_BROWSER_TEST_F(ErrorPageTest, MAYBE_IFrameDNSError_GoBackAndForward) {
 761   NavigateToFileURL(FILE_PATH_LITERAL("title2.html"));
 762   NavigateToFileURL(FILE_PATH_LITERAL("iframe_dns_error.html"));
 763   GoBackAndWaitForTitle("Title Of Awesomeness", 1);
 764   GoForwardAndWaitForTitle("Blah", 1);
 765   EXPECT_EQ(0, link_doctor_interceptor()->num_requests());
 766 }
 767
 768 // Test that a DNS error occuring in an iframe, once the main document is
 769 // completed loading, does not result in an additional session history entry.
 770 // To ensure that the main document has completed loading, JavaScript is used to
 771 // inject an iframe after loading is done.
 772 IN_PROC_BROWSER_TEST_F(ErrorPageTest, IFrameDNSError_JavaScript) {
 773   content::WebContents* wc =
 774       browser()->tab_strip_model()->GetActiveWebContents();
 775   GURL fail_url =
 776       URLRequestFailedJob::GetMockHttpUrl(net::ERR_NAME_NOT_RESOLVED);
 777
 778   // Load a regular web page, in which we will inject an iframe.
 779   NavigateToFileURL(FILE_PATH_LITERAL("title2.html"));
 780
 781   // We expect to have two history entries, since we started off with navigation
 782   // to "about:blank" and then navigated to "title2.html".
 783   EXPECT_EQ(2, wc->GetController().GetEntryCount());
 784
 785   std::string script = "var frame = document.createElement('iframe');"
 786                        "frame.src = '" + fail_url.spec() + "';"
 787                        "document.body.appendChild(frame);";
 788   {
 789     TestFailProvisionalLoadObserver fail_observer(wc);
 790     content::WindowedNotificationObserver load_observer(
 791         content::NOTIFICATION_LOAD_STOP,
 792         content::Source<NavigationController>(&wc->GetController()));
 793     wc->GetMainFrame()->ExecuteJavaScript(base::ASCIIToUTF16(script));
 794     load_observer.Wait();
 795
 796     // Ensure we saw the expected failure.
 797     EXPECT_EQ(fail_url, fail_observer.fail_url());
 798
 799     // Failed initial navigation of an iframe shouldn't be adding any history
 800     // entries.
 801     EXPECT_EQ(2, wc->GetController().GetEntryCount());
 802   }
 803
 804   // Do the same test, but with an iframe that doesn't have initial URL
 805   // assigned.
 806   script = "var frame = document.createElement('iframe');"
 807            "frame.id = 'target_frame';"
 808            "document.body.appendChild(frame);";
 809   {
 810     content::WindowedNotificationObserver load_observer(
 811         content::NOTIFICATION_LOAD_STOP,
 812         content::Source<NavigationController>(&wc->GetController()));
 813     wc->GetMainFrame()->ExecuteJavaScript(base::ASCIIToUTF16(script));
 814     load_observer.Wait();
 815   }
 816
 817   script = "var f = document.getElementById('target_frame');"
 818            "f.src = '" + fail_url.spec() + "';";
 819   {
 820     TestFailProvisionalLoadObserver fail_observer(wc);
 821     content::WindowedNotificationObserver load_observer(
 822         content::NOTIFICATION_LOAD_STOP,
 823         content::Source<NavigationController>(&wc->GetController()));
 824     wc->GetMainFrame()->ExecuteJavaScript(base::ASCIIToUTF16(script));
 825     load_observer.Wait();
 826
 827     EXPECT_EQ(fail_url, fail_observer.fail_url());
 828     EXPECT_EQ(2, wc->GetController().GetEntryCount());
 829   }
 830   EXPECT_EQ(0, link_doctor_interceptor()->num_requests());
 831 }
 832
 833 // Checks that navigation corrections are not loaded when we receive an actual
 834 // 404 page.
 835 IN_PROC_BROWSER_TEST_F(ErrorPageTest, Page404) {
 836   NavigateToURLAndWaitForTitle(
 837       net::URLRequestMockHTTPJob::GetMockUrl(
 838           base::FilePath(FILE_PATH_LITERAL("page404.html"))),
 839       "SUCCESS",
 840       1);
 841   EXPECT_EQ(0, link_doctor_interceptor()->num_requests());
 842 }
 843
 844 // Checks that when an error occurs, the stale cache status of the page
 845 // is correctly transferred, and that stale cached copied can be loaded
 846 // from the javascript.
 847 IN_PROC_BROWSER_TEST_F(ErrorPageTest, StaleCacheStatus) {
 848   ASSERT_TRUE(test_server()->Start());
 849   // Load cache with entry with "nocache" set, to create stale
 850   // cache.
 851   GURL test_url(test_server()->GetURL("files/nocache.html"));
 852   NavigateToURLAndWaitForTitle(test_url, "Nocache Test Page", 1);
 853
 854   // Reload same URL after forcing an error from the the network layer;
 855   // confirm that the error page is told the cached copy exists.
 856   scoped_refptr<net::URLRequestContextGetter> url_request_context_getter =
 857       browser()->profile()->GetRequestContext();
 858   BrowserThread::PostTask(
 859       BrowserThread::IO, FROM_HERE,
 860       base::Bind(&InterceptNetworkTransactions, url_request_context_getter,
 861                  net::ERR_FAILED));
 862
 863   // With no navigation corrections to load, there's only one navigation.
 864   ui_test_utils::NavigateToURL(browser(), test_url);
 865   EXPECT_TRUE(ProbeStaleCopyValue(true));
 866   EXPECT_TRUE(IsDisplayingText(browser(), GetShowSavedButtonLabel()));
 867   EXPECT_NE(base::ASCIIToUTF16("Nocache Test Page"),
 868             browser()->tab_strip_model()->GetActiveWebContents()->GetTitle());
 869
 870   // Confirm that loading the stale copy from the cache works.
 871   content::TestNavigationObserver same_tab_observer(
 872       browser()->tab_strip_model()->GetActiveWebContents(), 1);
 873   ASSERT_TRUE(ReloadStaleCopyFromCache());
 874   same_tab_observer.Wait();
 875   EXPECT_EQ(base::ASCIIToUTF16("Nocache Test Page"),
 876             browser()->tab_strip_model()->GetActiveWebContents()->GetTitle());
 877
 878   // Reload the same URL with a post request; confirm the error page is told
 879   // that there is no cached copy.
 880   ui_test_utils::NavigateToURLWithPost(browser(), test_url);
 881   EXPECT_TRUE(ProbeStaleCopyValue(false));
 882   EXPECT_FALSE(IsDisplayingText(browser(), GetShowSavedButtonLabel()));
 883   EXPECT_EQ(0, link_doctor_interceptor()->num_requests());
 884
 885   // Clear the cache and reload the same URL; confirm the error page is told
 886   // that there is no cached copy.
 887   BrowsingDataRemover* remover =
 888       BrowsingDataRemover::CreateForUnboundedRange(browser()->profile());
 889   remover->Remove(BrowsingDataRemover::REMOVE_CACHE,
 890                   BrowsingDataHelper::UNPROTECTED_WEB);
 891   ui_test_utils::NavigateToURL(browser(), test_url);
 892   EXPECT_TRUE(ProbeStaleCopyValue(false));
 893   EXPECT_FALSE(IsDisplayingText(browser(), GetShowSavedButtonLabel()));
 894   EXPECT_EQ(0, link_doctor_interceptor()->num_requests());
 895 }
 896
 897 // Check that the easter egg is present and initialised and is not disabled.
 898 IN_PROC_BROWSER_TEST_F(ErrorPageTest, CheckEasterEggIsNotDisabled) {
 899   ui_test_utils::NavigateToURL(browser(),
 900       URLRequestFailedJob::GetMockHttpUrl(net::ERR_INTERNET_DISCONNECTED));
 901
 902   content::WebContents* web_contents =
 903       browser()->tab_strip_model()->GetActiveWebContents();
 904
 905   // Check for no disabled message container.
 906   std::string command = base::StringPrintf(
 907       "var hasDisableContainer = document.querySelectorAll('.snackbar').length;"
 908       "domAutomationController.send(hasDisableContainer);");
 909   int result;
 910   EXPECT_TRUE(content::ExecuteScriptAndExtractInt(
 911                web_contents, command, &result));
 912   EXPECT_EQ(0, result);
 913
 914   // Presence of the canvas container.
 915   command = base::StringPrintf(
 916     "var runnerCanvas = document.querySelectorAll('.runner-canvas').length;"
 917     "domAutomationController.send(runnerCanvas);");
 918   EXPECT_TRUE(content::ExecuteScriptAndExtractInt(
 919                web_contents, command, &result));
 920   EXPECT_EQ(1, result);
 921 }
 922
 923 class ErrorPageAutoReloadTest : public InProcessBrowserTest {
 924  public:
 925   void SetUpCommandLine(base::CommandLine* command_line) override {
 926     command_line->AppendSwitch(switches::kEnableOfflineAutoReload);
 927   }
 928
 929   void InstallInterceptor(const GURL& url, int requests_to_fail) {
 930     interceptor_ = new FailFirstNRequestsInterceptor(requests_to_fail);
 931     scoped_ptr<net::URLRequestInterceptor> owned_interceptor(interceptor_);
 932
 933     // Tests don't need to wait for this task to complete before using the
 934     // filter; any requests that might be affected by it will end up in the IO
 935     // thread's message loop after this posted task anyway.
 936     //
 937     // Ownership of the interceptor is passed to an object the IO thread, but a
 938     // pointer is kept in the test fixture.  As soon as anything calls
 939     // URLRequestFilter::ClearHandlers(), |interceptor_| can become invalid.
 940     BrowserThread::PostTask(
 941         BrowserThread::IO, FROM_HERE,
 942         base::Bind(&AddInterceptorForURL, url,
 943                    base::Passed(&owned_interceptor)));
 944   }
 945
 946   void NavigateToURLAndWaitForTitle(const GURL& url,
 947                                     const std::string& expected_title,
 948                                     int num_navigations) {
 949     content::TitleWatcher title_watcher(
 950         browser()->tab_strip_model()->GetActiveWebContents(),
 951         base::ASCIIToUTF16(expected_title));
 952
 953     ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
 954         browser(), url, num_navigations);
 955
 956     EXPECT_EQ(base::ASCIIToUTF16(expected_title),
 957               title_watcher.WaitAndGetTitle());
 958   }
 959
 960   FailFirstNRequestsInterceptor* interceptor() {
 961     return interceptor_;
 962   }
 963
 964  private:
 965   FailFirstNRequestsInterceptor* interceptor_;
 966 };
 967
 968 // Fails on official mac_trunk build. See crbug.com/465789.
 969 #if defined(OFFICIAL_BUILD) && defined(OS_MACOSX)
 970 #define MAYBE_AutoReload DISABLED_AutoReload
 971 #else
 972 #define MAYBE_AutoReload AutoReload
 973 #endif
 974 IN_PROC_BROWSER_TEST_F(ErrorPageAutoReloadTest, MAYBE_AutoReload) {
 975   GURL test_url("http://error.page.auto.reload");
 976   const int kRequestsToFail = 2;
 977   InstallInterceptor(test_url, kRequestsToFail);
 978   NavigateToURLAndWaitForTitle(test_url, "Test One", kRequestsToFail + 1);
 979   // Note that the interceptor updates these variables on the IO thread,
 980   // but this function reads them on the main thread. The requests have to be
 981   // created (on the IO thread) before NavigateToURLAndWaitForTitle returns or
 982   // this becomes racey.
 983   EXPECT_EQ(kRequestsToFail, interceptor()->failures());
 984   EXPECT_EQ(kRequestsToFail + 1, interceptor()->requests());
 985 }
 986
 987 IN_PROC_BROWSER_TEST_F(ErrorPageAutoReloadTest, ManualReloadNotSuppressed) {
 988   GURL test_url("http://error.page.auto.reload");
 989   const int kRequestsToFail = 3;
 990   InstallInterceptor(test_url, kRequestsToFail);
 991   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
 992       browser(), test_url, 2);
 993
 994   EXPECT_EQ(2, interceptor()->failures());
 995   EXPECT_EQ(2, interceptor()->requests());
 996
 997   ToggleHelpBox(browser());
 998   EXPECT_TRUE(IsDisplayingText(browser(), "error.page.auto.reload"));
 999
1000   content::WebContents* web_contents =
1001     browser()->tab_strip_model()->GetActiveWebContents();
1002   content::TestNavigationObserver nav_observer(web_contents, 1);
1003   web_contents->GetMainFrame()->ExecuteJavaScript(
1004       base::ASCIIToUTF16("document.getElementById('reload-button').click();"));
1005   nav_observer.Wait();
1006   EXPECT_FALSE(IsDisplayingText(browser(), "error.page.auto.reload"));
1007 }
1008
1009 // Interceptor that fails all requests with net::ERR_ADDRESS_UNREACHABLE.
1010 class AddressUnreachableInterceptor : public net::URLRequestInterceptor {
1011  public:
1012   AddressUnreachableInterceptor() {}
1013   ~AddressUnreachableInterceptor() override {}
1014
1015   // net::URLRequestInterceptor:
1016   net::URLRequestJob* MaybeInterceptRequest(
1017       net::URLRequest* request,
1018       net::NetworkDelegate* network_delegate) const override {
1019     return new URLRequestFailedJob(request,
1020                                    network_delegate,
1021                                    net::ERR_ADDRESS_UNREACHABLE);
1022   }
1023
1024  private:
1025   DISALLOW_COPY_AND_ASSIGN(AddressUnreachableInterceptor);
1026 };
1027
1028 // A test fixture that returns ERR_ADDRESS_UNREACHABLE for all navigation
1029 // correction requests.  ERR_NAME_NOT_RESOLVED is more typical, but need to use
1030 // a different error for the correction service and the original page to
1031 // validate the right page is being displayed.
1032 class ErrorPageNavigationCorrectionsFailTest : public ErrorPageTest {
1033  public:
1034   // InProcessBrowserTest:
1035   void SetUpOnMainThread() override {
1036     BrowserThread::PostTask(
1037         BrowserThread::IO, FROM_HERE,
1038         base::Bind(&ErrorPageNavigationCorrectionsFailTest::AddFilters));
1039   }
1040
1041   void TearDownOnMainThread() override {
1042     BrowserThread::PostTask(
1043         BrowserThread::IO, FROM_HERE,
1044         base::Bind(&ErrorPageNavigationCorrectionsFailTest::RemoveFilters));
1045   }
1046
1047  private:
1048   // Adds a filter that causes all correction service requests to fail with
1049   // ERR_ADDRESS_UNREACHABLE.
1050   //
1051   // Also adds the net::URLRequestFailedJob filter.
1052   static void AddFilters() {
1053     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1054     URLRequestFailedJob::AddUrlHandler();
1055
1056     net::URLRequestFilter::GetInstance()->AddUrlInterceptor(
1057         google_util::LinkDoctorBaseURL(),
1058         scoped_ptr<net::URLRequestInterceptor>(
1059             new AddressUnreachableInterceptor()));
1060   }
1061
1062   static void RemoveFilters() {
1063     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1064     net::URLRequestFilter::GetInstance()->ClearHandlers();
1065   }
1066 };
1067
1068 // Make sure that when corrections fail to load, the network error page is
1069 // successfully loaded.
1070 IN_PROC_BROWSER_TEST_F(ErrorPageNavigationCorrectionsFailTest,
1071                        FetchCorrectionsFails) {
1072   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
1073       browser(),
1074       URLRequestFailedJob::GetMockHttpUrl(net::ERR_NAME_NOT_RESOLVED),
1075       2);
1076
1077   // Verify that the expected error page is being displayed.
1078   ExpectDisplayingLocalErrorPage(browser(), net::ERR_NAME_NOT_RESOLVED);
1079 }
1080
1081 // Checks that when an error occurs and a corrections fail to load, the stale
1082 // cache status of the page is correctly transferred, and we can load the
1083 // stale copy from the javascript.  Most logic copied from StaleCacheStatus
1084 // above.
1085 IN_PROC_BROWSER_TEST_F(ErrorPageNavigationCorrectionsFailTest,
1086                        StaleCacheStatusFailedCorrections) {
1087   ASSERT_TRUE(test_server()->Start());
1088   // Load cache with entry with "nocache" set, to create stale
1089   // cache.
1090   GURL test_url(test_server()->GetURL("files/nocache.html"));
1091   NavigateToURLAndWaitForTitle(test_url, "Nocache Test Page", 1);
1092
1093   // Reload same URL after forcing an error from the the network layer;
1094   // confirm that the error page is told the cached copy exists.
1095   scoped_refptr<net::URLRequestContextGetter> url_request_context_getter =
1096       browser()->profile()->GetRequestContext();
1097   BrowserThread::PostTask(
1098       BrowserThread::IO, FROM_HERE,
1099       base::Bind(&InterceptNetworkTransactions, url_request_context_getter,
1100                  net::ERR_CONNECTION_FAILED));
1101
1102   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
1103       browser(), test_url, 2);
1104   EXPECT_TRUE(IsDisplayingText(browser(), GetShowSavedButtonLabel()));
1105   EXPECT_TRUE(ProbeStaleCopyValue(true));
1106
1107   // Confirm that loading the stale copy from the cache works.
1108   content::TestNavigationObserver same_tab_observer(
1109       browser()->tab_strip_model()->GetActiveWebContents(), 1);
1110   ASSERT_TRUE(ReloadStaleCopyFromCache());
1111   same_tab_observer.Wait();
1112   EXPECT_EQ(base::ASCIIToUTF16("Nocache Test Page"),
1113             browser()->tab_strip_model()->GetActiveWebContents()->GetTitle());
1114
1115   // Clear the cache and reload the same URL; confirm the error page is told
1116   // that there is no cached copy.
1117   BrowsingDataRemover* remover =
1118       BrowsingDataRemover::CreateForUnboundedRange(browser()->profile());
1119   remover->Remove(BrowsingDataRemover::REMOVE_CACHE,
1120                   BrowsingDataHelper::UNPROTECTED_WEB);
1121   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
1122       browser(), test_url, 2);
1123   EXPECT_TRUE(ProbeStaleCopyValue(false));
1124   EXPECT_FALSE(IsDisplayingText(browser(), GetShowSavedButtonLabel()));
1125 }
1126
1127 #if defined(OS_CHROMEOS)
1128 class ErrorPageOfflineTest : public ErrorPageTest {
1129  protected:
1130   // Mock policy provider for both user and device policies.
1131   policy::MockConfigurationPolicyProvider policy_provider_;
1132
1133   void SetUpInProcessBrowserTestFixture() override {
1134     // Set up fake install attributes.
1135     scoped_ptr<policy::StubEnterpriseInstallAttributes> attributes(
1136         new policy::StubEnterpriseInstallAttributes());
1137     attributes->SetDomain("example.com");
1138     attributes->SetRegistrationUser("user@example.com");
1139     policy::BrowserPolicyConnectorChromeOS::SetInstallAttributesForTesting(
1140         attributes.release());
1141
1142     // Sets up a mock policy provider for user and device policies.
1143     EXPECT_CALL(policy_provider_, IsInitializationComplete(testing::_))
1144         .WillRepeatedly(testing::Return(true));
1145     policy::BrowserPolicyConnector::SetPolicyProviderForTesting(
1146         &policy_provider_);
1147
1148     ErrorPageTest::SetUpInProcessBrowserTestFixture();
1149   }
1150 };
1151
1152 IN_PROC_BROWSER_TEST_F(ErrorPageOfflineTest, CheckEasterEggIsDisabled) {
1153   // Check for enterprise enrollment.
1154   policy::BrowserPolicyConnectorChromeOS* connector =
1155       g_browser_process->platform_part()->browser_policy_connector_chromeos();
1156   EXPECT_TRUE(connector->IsEnterpriseManaged());
1157
1158   ui_test_utils::NavigateToURL(browser(),
1159       URLRequestFailedJob::GetMockHttpUrl(net::ERR_INTERNET_DISCONNECTED));
1160
1161   content::WebContents* web_contents =
1162       browser()->tab_strip_model()->GetActiveWebContents();
1163
1164   std::string command = base::StringPrintf(
1165       "var hasText = document.querySelector('.snackbar').innerText;"
1166       "domAutomationController.send(hasText);");
1167   std::string result = "";
1168   EXPECT_TRUE(content::ExecuteScriptAndExtractString(
1169                web_contents, command, &result));
1170
1171   std::string disabled_text =
1172       l10n_util::GetStringUTF8(IDS_ERRORPAGE_FUN_DISABLED);
1173   EXPECT_EQ(disabled_text, result);
1174 }
1175 #endif
1176
1177 // A test fixture that simulates failing requests for an IDN domain name.
1178 class ErrorPageForIDNTest : public InProcessBrowserTest {
1179  public:
1180   // Target hostname in different forms.
1181   static const char kHostname[];
1182   static const char kHostnameJSUnicode[];
1183
1184   // InProcessBrowserTest:
1185   void SetUpOnMainThread() override {
1186     // Clear AcceptLanguages to force punycode decoding.
1187     browser()->profile()->GetPrefs()->SetString(prefs::kAcceptLanguages,
1188                                                 std::string());
1189     BrowserThread::PostTask(
1190         BrowserThread::IO, FROM_HERE,
1191         base::Bind(&ErrorPageForIDNTest::AddFilters));
1192   }
1193
1194   void TearDownOnMainThread() override {
1195     BrowserThread::PostTask(
1196         BrowserThread::IO, FROM_HERE,
1197         base::Bind(&ErrorPageForIDNTest::RemoveFilters));
1198   }
1199
1200  private:
1201   static void AddFilters() {
1202     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1203     URLRequestFailedJob::AddUrlHandlerForHostname(kHostname);
1204   }
1205
1206   static void RemoveFilters() {
1207     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1208     net::URLRequestFilter::GetInstance()->ClearHandlers();
1209   }
1210 };
1211
1212 const char ErrorPageForIDNTest::kHostname[] =
1213     "xn--d1abbgf6aiiy.xn--p1ai";
1214 const char ErrorPageForIDNTest::kHostnameJSUnicode[] =
1215     "\\u043f\\u0440\\u0435\\u0437\\u0438\\u0434\\u0435\\u043d\\u0442."
1216     "\\u0440\\u0444";
1217
1218 // Make sure error page shows correct unicode for IDN.
1219 IN_PROC_BROWSER_TEST_F(ErrorPageForIDNTest, IDN) {
1220   // ERR_UNSAFE_PORT will not trigger navigation corrections.
1221   ui_test_utils::NavigateToURL(
1222       browser(),
1223       URLRequestFailedJob::GetMockHttpUrlForHostname(net::ERR_UNSAFE_PORT,
1224                                                      kHostname));
1225
1226   ToggleHelpBox(browser());
1227   EXPECT_TRUE(IsDisplayingText(browser(), kHostnameJSUnicode));
1228 }
1229
1230 }  // namespace